Some standard content:
GB18152-2000
This standard is based on the "Mineral Processing Safety Regulations" promulgated and implemented by the former Ministry of Metallurgical Industry of the People's Republic of China on March 12, 1988, and supplements the "scope", "reference standards", "definition", "fire prevention" and "industrial hygiene" and other parts, covering the content unique to mineral processing plants in the chemical industry, building materials and other industries, and has also been greatly enriched in terms of overall content. It is a unified mineral processing safety standard for the whole country. After the implementation of this standard, all industries should revise or abolish the original "Mineral Processing Safety Regulations" promulgated in accordance with the provisions of this standard. The standard was proposed and coordinated by the Work Safety Bureau of the State Economic and Trade Commission of the People's Republic of China. The drafting unit of this standard is the Metallurgical Industry Safety and Environmental Protection Research Institute. The participating drafting units of this standard are: Shandong Longkou Gold Mining and Metallurgy Company. The main drafters of this standard are: Pang Qizhi, Li Wenyong, Wang Honghan, Chu Yuanmin, Shen Chuanping, Li Xiaofei, Zhang Zhongqi, Qu Xin, Sun Jiashou, Zhang Aoshi, Fang Heping.
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1Scope
National Standard of the People's Republic of China
Safety Regulations for Mineral Processing
Safety regulations for ore dressingGB 18152-2000
This standard specifies the safety technology and industrial hygiene requirements for the selection of ore dressing plants, plant layout, reverse ore processing and tailings facilities, transportation, lifting, electrical, fire protection, etc. This standard is applicable to ore dressing plants in the metallurgical (including nonferrous), chemical, building materials and other industries. Some enterprises that adopt ore dressing technology can also refer to it for implementation. The technical standard does not apply to coal dressing plants and industrial uranium ore dressing plants. 2 Referenced standards
The provisions contained in the following standards are cited in this standard and constitute the provisions of this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards GB146.1-1983 Standard gauge railway locomotive and vehicle limits GB 146. 2-1983
Standard gauge railway building limits
GB 4053. GB 4053.1-1993
Safety technical conditions for fixed steel straight ladders
Safety technical conditions for fixed steel inclined ladders
GB 4053.2-1993
GB 4053.3-1993
Safety technical conditions for fixed industrial guardrailsGB4053.4-1983 Fixed industrial steel platformsGB 4387-1994
GB 4792-1984
GB 5749-1985
Safety regulations for railway and road transport within industrial enterprisesBasic standards for fire protection
Standards for drinking water
GB/T 6067-1993
GB 6222-1986
GB 6722-1986
GB 8196- 1987
GB 8197—1987
GB 87031988
Safety regulations for lifting machinery
Safety regulations for gas in industrial enterprises
Safety regulations for blasting
Safety requirements for protective devices for mechanical equipment
Safety requirements for protective equipment
Regulations on radiation prevention
GB H1806—1989
Regulations on safe transportation of radioactive materials
GB/T 14784--1993
Safety specifications for belt conveyors
Design specifications for substations of 10k and below
GB 50053—1994
GB 500701994
GBJ 12- -1987
GRJ 16- I987
GBJ 22—1987
Code for Design of Power Plants in Mines
Code for Design of Standard Gauge Railways for Industry and Commerce
Code for Fire Protection in Building Design
Code for Design of Mine Roads
Approved by the State Administration of Quality and Technical Supervision on July 24, 2000
Implementation on December 1, 2000
3 Definitions
This standard adopts the following definitions.
3.1 Ore dressing
GB 18152: -2000
The process of separating useful minerals from gangue minerals in ores or separating various useful minerals coexisting in ore under specific process equipment conditions to obtain one or more relatively enriched useful minerals.
3.2 Ore dressing: Ore dressing plant includes ore dressing plant with independent legal person and ore dressing vehicle affiliated to mining enterprise, which refers to the land, buildings and workplaces used or can be used for ore dressing.
4 Management
4.1 Ore dressing plant shall establish and improve the safety production responsibility system. 4.2 The factory shall set up a safety organization or full-time safety officer, which shall be directly led by the factory director; the vehicle shall set up a full-time or part-time safety officer; the shift shall set up a part-time safety officer.
Full-time safety officers shall be persons who have graduated from a secondary vocational school (or have equivalent education), have the necessary safety professional knowledge and safety working experience, have been engaged in professional work in the ore dressing plant for more than 10 years and can often go to the site. 4.3 Establish and improve the safety inspection system. The factory shall inspect at least once a quarter and the workshop shall inspect at least once a month. The problems found shall be solved within a time limit.
4.4 Carry out safety production publicity and education, popularize safety knowledge and safety regulations, strengthen technical and business training, and conduct regular training and assessment for all employees.
4.5 Personnel holding various types of operations shall obtain a work qualification certificate or license before they can take up their posts. 4.6 Newcomers entering the factory shall first receive safety education. After passing the examination, they shall work under the guidance of skilled workers for at least four months, become familiar with the operation technology of this type of work and pass the assessment before they can work independently. For laborers, visitors and interns, safety education shall also be carried out before entering the factory. 4.7 Personnel who have been transferred to a previous position or have been away from their current position for more than half a year should receive job safety and technical training. When new processes, technologies and equipment are adopted, relevant personnel should receive special training. 4.8 Labor protection articles should be issued to employees in accordance with regulations: Factory personnel should wear labor protection articles in accordance with regulations. 4.9 Dangerous areas should be equipped with lighting and warning signs. 4.10 Operators should not consume or take intoxicating drugs before the seventh shift, and should not leave their posts, change posts or leave their posts without authorization during their shifts. 4.11 For flammable and explosive items, toxic and harmful agents, laboratory agents and radioactive elements, a strict storage, issuance, preparation and use system should be established, and a special person should be assigned to manage them. If they are found to be lost, they should be reported to the relevant departments. 4.12 Safety facilities should be designed, constructed and put into production at the same time as the main project. 4.13 In the event of an injury or other major accident, the factory director or his agent should immediately go to the scene to direct and organize rescue and take effective measures to prevent the accident from expanding.
The investigation, reporting and handling of accidents shall be carried out in accordance with relevant national regulations. 5 Site selection and plant layout
5.1 Site selection
5.1.1 The site selection shall be based on complete data on topography, engineering geology, hydrogeology, earthquake, meteorology and environmental impact assessment.
5.1.2 The site selection shall avoid unfavorable geological areas such as karst, quicksand, silt, mixed loess, faults, landslides, mud-rock flows, and landslides; otherwise, safe measures shall be taken.
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GB18152—2000
5.1.3 The site should not be selected within the collapse boundary of the underground goaf and the dangerous area of large-scale blasting, nor should it be selected within the minimum safety distance of the explosive processing plant, blasting equipment warehouse and oil depot. 5.1.4 The factory should avoid being located in the earthquake fault zone and the area with basic intensity higher than 9 degrees. Otherwise, it should be protected according to the relevant national anti-seismic regulations.
5.1.5 The factory site should avoid being submerged by floods. The design elevation of the site should be higher than the local calculated water level by more than 7.5m. 5.1.6 When building a factory in a residential area, the factory site should be located on the upwind side of the direction of the lowest wind frequency in the residential area throughout the year. When building a factory in a mountainous area, the location of the factory and the residential area should be determined according to the local meteorological conditions. 5.1.7 The standard value of the bearing capacity of the foundation of general buildings and structures should be greater than 150kPa (1.5kgl/cm2), and the standard value of the bearing capacity of the foundation soil of major buildings and structures should be greater than 250kPa (2.5kgf/em2). If the bearing capacity of the foundation does not meet the requirements, the foundation should be properly treated.
5.1.8 The tailings storage should be as far away as possible from densely populated areas or places with important facilities, and tailings should not be directly discharged into rivers, lakes, or seas. 5.2 Factory area layout
5.2.1. When determining the location of buildings and structures, the following provisions should be observed: 1. Main buildings with large loads (crushing room, grinding room, concentrate warehouse, etc.) should be arranged in areas with good geological conditions; 2. Workshops that produce smoke and toxic and harmful gases should be arranged at the edge of the factory area and upwind of the workshops that do not produce toxic and harmful gases in the direction of the minimum wind frequency; 3. Roasting room and gas generator should be arranged on the upwind side of the minimum wind frequency direction of the area; 4. Fire protection distances between buildings and structures and the layout of fire lanes should comply with the relevant provisions of G13116. Warehouses for storing flammable and explosive items should be arranged on the upwind side of the minimum wind frequency direction of buildings with frequent flashes and open flames. 5.2.3 Fire lanes (also transportation roads) should be set up to reach factories, warehouses and combustible raw material yards, and their width should not be less than 3.5m. For free fire trucks, a return lane or a parking lot of no less than 12m×12m should be provided. 5.2.4 Avoid placing part of the structure near the river or low-lying land, while placing the other part near the commercial area. 5.2.5 The layout of the railway and roads shall comply with the relevant provisions of CB4387, CB116.1, GB146.2, GBJ12 and GBJ22. 5.2.6 When using aerial ropeway for transportation, the ropeway shall not pass through the factory area or residential area. Safety measures shall be taken when the ropeway passes over the railway and road.
When the ropeway crosses the high-voltage line, the relevant national regulations shall be implemented. 5.2.7 The distance from the flotation reagent depot and grease depot to the air inlet shaft and fan diffuser shall not be less than the following provisions: the storage volume of reagents and oils is less than 10m2---20m2
, the oil volume is 10~50 m2--30 m
, the storage volume of reagents and oils is 50~100m2---50m2
, the purchase volume of reagents and oils is greater than 100m2-80m2
6 Basic regulations
6.1 The floor and ground of the workshop shall have an appropriate slope: the floor shall be equipped with floor drains and the ground shall be equipped with drainage ditches. 6-2 The factory building shall be equipped with ground flushing facilities. The water supply points of the platform and corridor of the flushing room shall be arranged according to the principle of convenient flushing, and the spacing shall not exceed 30m. Flushing wastewater should be discharged by gravity, and a sewage pool, sewage pump station and corresponding safety protection facilities should be set up at the lowest elevation of the whole plant:
6.3 Water retaining platforms of not less than 100msm should be built around the platform and holes; iron grate covers with a gap of not more than 20mm should be set up in the ditch.
6.4 Basements and side roads should be equipped with lighting, ditches, pools and sewage pumps, and should be inspected regularly. 6.5 The seismic resistance level of buildings and structures located in earthquake zones should comply with relevant national regulations. 6.6 Cantilever structures should not be arranged in the plant. When cantilever structures are required for process layout, the cantilever length should be less than 2.0m, and heavy equipment with large vibration should not be arranged on the cantilever part.
GB 18152--2000
6-7 For equipment with heavy loads and large vibrations, the foundation should not be on the platform, but on the foundation. When the operating platform has concentrated loads, special reinforcement measures should be taken.
6.8 For a factory building with a length of more than 60m, two main staircases should be provided. The inclination angle of the staircase in the main passage should not be greater than 45; the inclination angle of the staircase where pedestrians are not frequent can reach 60%. The clearance height above each step of the staircase should not be less than 2.2m. The net width of the pedestrian passage under the stair landing should not be less than 2.0 m
6.91 The width of the main operation passage in the room should not be less than 1.5 m--the width of the general equipment maintenance passage should not be less than 1.0 m, and the clearance height of the passage should not be less than 2.0 m
6-10 When the slope of the passage reaches 6°~12°, anti-slip strips should be added; when the slope is greater than 12°, steps should be set; anti-slip measures should be taken for floors that are often exposed to slippery substances such as water, grease, etc.
6.11 Platforms with a height of more than (.6m) should be surrounded by railings, and the holes on the platform should be equipped with railings or covers; if necessary, safety guard plates should be installed on the edge of the platform.
6.12 Overpasses, culverts and ladders should be made of patterned steel plates. The production of straight ladders, inclined ladders, railings and platforms should comply with the requirements of GB4053.1CB4053.2, GB4053.3 and GB4053.4 respectively. 6.13 Railings, platforms and ladders should be inspected, maintained and cleaned regularly: 6.14 Ladders and passageways should not be located in areas with frequent railway and vehicle traffic; otherwise, protective devices should be installed and eye-catching warning signs should be hung.
6.15 Warning signs and protective facilities should be installed at crossings and places where there is a risk of collision or falling of objects. 6.16 The exposed rotating parts of the equipment should be equipped with protective covers or protective screens. The protective covers and protective screens should comply with the requirements of GB8196 and GB8197 respectively.
6.17 The switches and operating boxes of the equipment should be located near the equipment for easy operation. The switches and operating boxes of interconnected equipment should be placed in a centralized location. The installation height of the motors of the main equipment should be convenient for the operators to check and maintain. If it is difficult to meet the requirements, a local operating platform should be set up. 6.18 Various pipelines and tide troughs in the factory should not hinder operation and walking. 6. 19 For buildings with a height of more than 10m, if there are combustible materials on the roof, a fixed fire-fighting steel ladder with a height of not less than 500mm and a height of 3m from the ground should be installed outdoors.
6.20 For rooms whose roofs need to be inspected or cleaned frequently, if the height is greater than 6m, a fixed steel ladder for maintenance should be installed; for multi-storey factories with a height difference of 2m between the two roofs, a ladder should be installed: for eaves with a height greater than 10m2, a protective bolt rod should be installed on the eaves; for those with a height less than 10m2, a safety hook can be installed with a hook spacing of no more than 6m.
6.21 The factory should have sufficient space for equipment (components) assembly and maintenance. 6.22 The maintenance space and passages of the equipment should comply with the following provisions: Reasonable maintenance space should be determined based on the various loading and unloading directions of the maintenance components, the size and position of the components, and no other equipment or structures should be set up within the maintenance space;
When the crane is lifting the largest component, the maximum wheel of the component and the fixed equipment and facilities should be The clearance size between corridors should be no less than -400mm. Equipment and parts hoisted and repaired by cranes should be arranged within the space that the crane hook can lift vertically. The lifting height of the maintenance crane should meet the needs of equipment maintenance work. If the crane needs to lift equipment and parts through a platform or wall, the platform or wall should be equipped with a lifting passage, and the gap between the passage and the equipment or parts should be no less than 300mm. The equipment lifting hole should be equipped with a movable cover or protective railing, and the side of the equipment entrance and exit of each lifting hole should be made into a movable railing. If the walls of the second floor and above of the building are equipped with lifting sliding doors, a partition wall with a height of 1.03m should be set at the sliding door or a detachable protective railing should be installed. The lifting beam should not extend more than 2m outside the wall. 6.23 The beam and slab load of the maintenance site should be considered as full load; when there is a possibility of concentrated load on the overall assembled heavy equipment, additional measures should be taken.
6-24 The safety arm and dust removal equipment should be inspected and repaired between equipment inspections. After inspection, they should be reinstalled immediately and should not be discarded at will. HiIKANiiKAcabZxz.net
GB 18152--2000
6.25 The major and medium repairs of equipment should be inspected and accepted by the technical person in charge of the factory (workshop), the person in charge of safety and the equipment user. If they are not satisfactory, they should be repaired.
6.26 The power supply of the equipment should be cut off in advance, and the power supply sign should be replaced with the operation sign. The "Do Not Start" sign should be hung on the operation board before the operation can be started.
6.27 When carrying out maintenance in places with insufficient light or at night, there should be sufficient lighting. 6.28 For color layer operations or dangerous operations, there should be special personnel to supervise and take protective measures. 6.29 When pouring zinc alloy, there should be no water on the site. The castings should be dried and preheated to 80-120C. It is not allowed to pour on rainy days. When working at heights (including material slopes above 45\) from 6-30, safety belts should be used. 6.31 When encountering strong winds above level 6, No work should be done at high places. 7 Process
7.1 General provisions
7.1.1 The following operations of the running equipment should be stopped: · Troubleshooting:
Replace parts;
Locally adjust equipment parts;
Adjust belt tightness;
Clean equipment,
7.1.2 Personnel should not avoid entering the ore movement space. 7.1.3 Personnel entering the inside or upper part of the stopped equipment should replace the power card with the operation card, cut off the power supply, lock the power switch, hang a signboard with "Someone is working. Do not close the switch", and appoint a special person to supervise. 7.1.4 The sampling points of the original concentrate and tailings should be located in the safe and stable position for sampling. 7.2 Crushing and screening
7.2.1. When burying fixed screen ore, coarse crusher screen ore (national mine area iron ore) and entering the machine rest inspection area to the mosquito barrier, the following regulations should be observed:
-Operators should wear safety belts, H length is limited to the working point, and a special person should be appointed to supervise:
--Before entering the machine body, pre-process the ore blocks attached to the wall of the ore chute or the slag that may fall off the platform. 7.2.2 The surrounding areas of the fixed grid screen and the coarse crusher receiving ore chute (except the feeding side or the tipping case), as well as the cyclone classifier body near the discharge end of the ore feeder, should be equipped with railings. 7.2.3 For the coarse crusher feeding equipment, the tipping machine should be turned over in the normal operation state, and the equipment should be operated according to the equipment operation regulations. There should be no turning over in the parking state. 7.2.4 When the crane is lifting large pieces of ore, the ore should be tied tightly, and a special person should be asked to slowly lift the ore. No one should be under the lifting object. 7.2.5 When it is necessary to stop the machine to adjust the discharge port of the cone crusher, it should be measured with a lead cone or other tools, and then the machine should be stopped and the power should be cut off before adjustment. The person must be discharged into the machine to measure the discharge. There should be necessary safety equipment. Protective measures. 7.2.6 When cleaning the ore accumulation in the rough crusher overturning site, the operator should wear a safety belt and be supervised by a special person. 7.2.7 When dealing with the ore blocking (blocking) of the jaw crusher, the ore at the head of the feeder should be dealt with first, and then the ore should be processed from the top. The method of turning the ore should not be used or it should be processed from the bottom of the discharge port upwards. When entering the feed port of the crusher, the operator should wear an umbrella belt and be supervised by a special person. 7.2.8 When dealing with the blockage of the lower hopper of the jaw crusher, the upper and lower operating positions should be contacted, the power supply of the equipment should be disconnected, and a special person should be assigned to supervise. The
screening operation should have dust removal facilities and work in a sealed state. The sealing device should have a door opening for easy maintenance and observation. 7.2. 9
7.2.10 When the screen is blocked due to load, the machine should be stopped first, and then the V-belt should be pressed with a special machine. It is not allowed to press the V-belt continuously.
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7.3 Grinding and Classification
GB 18152--2000
7.3.1 There should be guardrails on both sides of the mill and the side of the bearing. When the mill is running, personnel should not stay or work on both sides and the lower part of the operating cylinder; and should often observe whether the manhole door is tight to prevent the grinding medium from flying out of people. When passing through the manhole of the mill, it should be confirmed that there is no one in the mill before closing it.
7.3.2 When repairing and replacing the mill lining, the roller should be fixed in advance, and it should be confirmed that there is no falling object in the machine body, the ventilation is sufficient, and the temperature is suitable before entering. The hook of the crane should not enter the machine body. 7.3.3 When dealing with the leakage of the shovel or tightening the screws of the cylinder, the roller should be fixed. If the mill is seriously eccentric, the eccentricity should be eliminated first and then handled.
7.3.4 When the ball mill is swollen, the feeding should be stopped immediately, and then it should be handled according to the principle of "close the water in the front, add water in the back, increase the classification concentration and reduce the return sand". 7.3.5 When adding balls to the ball mill with a special steel bucket, the surface of the steel balls in the bucket should be lower than the upper edge of the bucket; when adding balls to the ball mill with an electromagnetic disk, there should be no one under the suction cup: steel balls should not be transported with bags. 7.3.6 When adding grinding media to a rod mill, the rod mill should be stopped. When adding media to a rod mill, the service parts of the rod mill should be checked in advance to confirm that they are in good condition before proceeding. The machine should be operated by a dedicated person, and should be closely coordinated with the crane, and a dedicated person should be assigned to operate the machine. 7.3.7 When the mill is stopped for more than 8 hours or the liner is replaced after maintenance, in the absence of micro-tow facilities, the crane should be used to turn the car before starting, and the turning wire rope should be checked in advance: the main motor should not be used to turn the car. 7.3.8 When checking the grinding condition of the scoop machine, the operator should stand on the side of the scoop mouth, not on the front. 7.3.9 When dealing with the blockage of the return sand trough of the grading equipment, it is not allowed to climb on the grading machine, linear vibrating screen or other equipment. 7.3.10 When removing the wood chips and other waste residues on the overflow slag remover of the grading equipment, you should not stand on the slag remover. 7.4
7.4.1 The operating sand dredging vessel should float normally, the hull should be stable, and the inclination angle should be less than 0.5*7.4.2 During the sand channel operation, a small amount of water should be installed on the fore rope and the near rope of the sand dredging vessel. Other operations should be carried out in the mining area. Measures should be taken to prevent landslides, collapses and mud-rock flows. 7.4.3 There should be no unfixed objects on the middle plate of each layer of the sand dredging vessel, and the operating platform, stairs and sidewalks should be kept unobstructed. 7.4.4 The load of the sand dredging vessel should not be increased at will, and personnel should not gather on the side or end of the hull, and relevant personnel should not board the ship. 7.4.5 The safe water level and minimum mining width of the sand dredging vessel should be included in the design plan. When the sand mining ship is working, the lower elevation should not be less than 2m: when the dock ship crosses the river, the difference between the river surface elevation and the water surface elevation of the mining pool should not be greater than 0.5m; when the water level of the river section of the sand mining ship is lower than the safe water level, a dam should be built to raise the water level, and the over-excavation bottom plate development method should not be used to cross the river. 7.4.6 The distance from the surface building to the mining pool should not be less than 30m; the distance from the equipment to the mining pool should not be less than 5m; the distance from the personnel to the mining pool should not be less than 2m
7.4.7 When the sand mining ship is operating, within its turning radius, all personnel and ships should not stay or pass. 7.4.8 The power cable should be well insulated: the part laid on the surface should have a warning sign; the part on the water should be installed on a pontoon or a raft
7.4.9 The control switches, instruments and winder travel switches in the cab should be sensitive and reliable. Motors that have not been used for a long time or have been exposed to moisture should be tested by electricians to ensure good insulation and can only be started with the consent of the electricians. 7.4.10 During periods of strong winds, heavy fog and floods, ships should not be operated or maneuvered unless reliable safety measures are in place. When the wind speed exceeds 15 m/s, the ship should be stopped and windbreak measures should be taken; when the wind speed exceeds 20 m/s, the most appropriate measures should be taken to prevent capsizing or major equipment accidents.
7.4.11 Water level alarms, lighting, signaling, communication and rescue equipment should be installed on sand mining ships. 7.5 Selection
7.5.1 Heavy square beneficiation
7.5.1.1 The spiral awl trough should be set according to the commercial size of 2 m ~ 2.5 m - layered operating platform: 7.5.1.2 When the centrifugal concentrator is running, do not put your head into the rotor to check and adjust the position and angle of the feeding duckbill, washing nozzle and unloading water nozzle. The machine should be stopped for inspection.
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7.5.1.3 When the solenoid valve of the feeding hopper box of the centrifugal concentrator is blocked, a triangular folding ladder should be used to handle it. 7.5-1.4 The bed layer of the jig machine should be cleaned once a week, the debris on the sieve holes of the sieve plate should be removed, and the sieve plate and its fixing should be checked. 7.5.2 Magnetic-electric ore separation
7.5.2.1 When adjusting the material separation plate of the lower magnetic pulley, the operator should stand on the surface of the magnetic pulley to prevent the mineral from entering and exiting and injuring people. 7.5.2.2 When the ore block or other objects enter between the belt and roller of the magnetic pulley, they should be handled under the supervision of others; iron rods, iron pipes or other tools should not be used to clean them when the magnetic pulley is running. 7.5.2.3 Before the operation of the strong magnetic separator, all debris that may be attracted by the magnetic force should be removed; iron rods, hammers and other objects that can be attracted by the magnetic force should not be brought around the equipment.
7.5-2.4 The electric separator should be installed in a dry and ventilated place. During operation, the operator should avoid contact with high-frequency cables. 7.5.2.5 The electric separator and the high-voltage electrostatic generator should be placed as close as possible. Rubber insulating floor can be laid in front of the high-voltage electrostatic dust generator and the main machine of the electric separator.
7.5.2.6 When the electrostatic separator adopts circular feeding or electromagnetic vibration feeding, the driving motor or electromagnetic vibrator of the feeding device shall be interlocked with the high-voltage electrostatic generator. Before the high voltage is connected, the feeding driving motor or electromagnetic vibrator cannot be started; after the high voltage trips, the feeding driving motor or electromagnetic vibrator shall stop working immediately.
7.5.2.7 The main engine of the electrostatic separator and the high-voltage electrostatic generator shall be connected to the grounding trunk line with separate branches and shall not be connected in series. 7.5.2.8 After the high voltage is disconnected, the residual charge on the high-voltage electrode of the electrostatic separator shall be discharged with a grounding discharger before contact with these components or maintenance.
7.5.3 Flotation
7.5.3.1 When starting the flotation equipment, it shall be confirmed that there is no one and no obstacles in the machine. The flotation tank in operation shall be prevented from falling into debris such as iron pieces or other obstacles that affect the operation.
When replacing the V-belt of the flotation machine, the machine shall be stopped. When the V-belt is loose, do not use a stick to press it or use wire to hook the V-belt. 7.5.3.2
When replacing the agitator of the mechanical stirring flotation machine, use a steel wire rope for transportation, do not use a V-belt or hemp rope for lifting. 7.5.3.3
7.5.3.4 Do not work on the slurry mixing tank. The sludge splashed on the end of the tank wall should be frequently washed with water. The flotation machine slurry inlet pipe, sand return pipe, ore discharge pipe and gate valve should be kept intact, unobstructed and flexible. If blockage or wear is found, it should be promptly repaired.7.5.3.5
Handling.
When the flotation machine tank leaks ore pulp due to wear or the agitator fails and must be stopped for maintenance, the ore pulp in the tank should be emptied and washed with water.
7. 5. 3. 7
When the flotation machine suddenly loses power and jumps, the central source switch should be cut off immediately and the ball mill should be notified to stop feeding ore. 7.5.3.8 When using a cup-type dosing machine to adjust the dosing amount, the machine should be stopped for adjustment. 7.5.3.9 The dosing machine should be set up separately and equipped with ventilation devices. When crushing solid reagents manually, no one should be in front. 7.5.3.10 If the flotation process uses toxic or odorous agents, or if a large amount of steam is generated during the process, ventilation equipment should be installed. 7.5.4 Roasting
7.5.4-1 The use of old gas should be carried out in accordance with the relevant provisions of GB6222. 7.5.4.2 The ignition of the roasting vertical furnace should be carried out according to the following procedures; a) Start the blast fan for 10915min;
b) Open the end pipe of the heating gas of this furnace to release for 5min; ) After the gas explosion test, use a torch to ignite the hot burner; d) When the scale heats up, a small amount of gas should be supplied, and the gas volume should be increased one by one after it returns to normal. 7.5.4.3 The roasting vertical furnace should work under negative pressure and should not leak air. 7.5.4.4 When entering the roasting furnace for inspection and maintenance, the heating and reducing gas pipes should be blocked with a plate first. When inspecting the gas pipeline, the gas should be exhausted with steam or nitrogen before proceeding.
7.5.4.5 After the fire eye is burned, the fire limit should be blocked with a magnetic block to prevent gas leakage. 7.5.4.6 No irrelevant personnel should stay in front of the furnace, on the furnace top platform, on the combustion chamber platform, and on the platform of the moving machine. TiiKAoNiKAca
7.5.4.7 The following regulations should be followed when baking the furnace:
CB18152-2000
Do not enter the furnace to ignite the baking furnace pipe and reduce the gas injection tower (small temple); - open the flue cover on the top of the furnace;
- Set up the baking furnace pipe and ignite the baking furnace pipe with a torch (the ignition procedure is the same as the ignition of the furnace); - Follow the requirements of the heating curve of the baking furnace.
7.5.4.8 In the gas operation area, eye-catching warning signs should be hung. 7.5.4.9 In the duty room and work place where gas operation personnel gather, there should be an automatic gas leakage alarm device: the alarm should be in good condition and should be checked at least once every ten days. 7.5.4.10 Operators in the gas operation area should master the on-site first aid knowledge of gas poisoning. 7.5.4.11 Gas workers should be proficient in the use of gas masks and oxygen respirators. Gas masks should be checked regularly to ensure they are in good condition.
7.5.4.12 When a gas leak is found, it should be reported to the relevant personnel immediately; after receiving the report, the relevant personnel should handle it immediately. 7.5.4.13 The water cover of the roasting vertical should be strong, complete, and fully covered. Personnel should not rest or warm themselves on it. 7.5.4.14 The top of the cross section of the roasting plant should be equipped with a large defogging window. 7.5.4.15 When igniting the rotary gas, steam should be passed through the gas pipeline system to remove residual gas. At the same time, the exhaust fan should be started for 10 minutes and then the gas burner should be ignited with an old torch (first light the torch, then open the valve); if it cannot be ignited, the cause should be found out and ignited again after an interval of 10 to 15 minutes. 7.5.4.16 A gas explosion test should be carried out before ignition. If the test fails, ignition should not be carried out. 7.5.4.17 A gangway should be set up for maintenance, and safety lights (low voltage, explosion-proof) should be used for lighting inside: When the kiln is rotating, there should be no one inside: When repairing, an operation ticket should be applied,
7.5.4.18 When the kiln is inspected and bricked, it should be beaten from the inside to the outside, and there should be someone to supervise. 7.5.5 Immersion
7.5.5.1 The leaching workshop should have a certain number of detoxification agents and anti-toxic equipment, and their effectiveness should be properly stored and regularly checked. Every employee should learn how to use detoxification agents and anti-toxic equipment and emergency measures. 7.5.5.2 Ventilation and detoxification facilities should be installed in the leaching car, and they should be kept intact and normal. 7.5.5.3 When repairing toxic containers such as reverse leaching tanks, the detoxification should first reach the specified safety value, and then wear a gas mask and protective equipment, and enter the operation under the supervision of a special person.
7.5.6 Storage, use and management of drugs (agents) 7.5-6.1 Chemical drugs should be classified and stored according to their properties (highly toxic, explosive, flammable, moisture-prone, light-sensitive, etc.), and liquids and solids should be stored separately.
7.5.6.2 Flammable and explosive drugs should be kept away from fire sources and stored separately in low-temperature, dry places. 7.5.6.3 When taking drugs from large bottles, the remaining part should not be poured back into the original bottle, but should be stored in small bottles and labeled. 7.5.6.4 For flammable and foam-prone drugs, they should not be shaken violently in a closed environment to avoid explosion. 7.5.6.5 When storing drugs, they should be clearly labeled, and toxic and explosive drugs should also have special markings. Labels should not be discarded at will to avoid the danger of misusing drugs.
7.5.6.6 Drugs without labels and unknown properties should be confirmed by testing before use. 7.5.6.7 Inflammable, explosive or toxic drugs frequently used in the studio should be properly stored in the medicine cabinet, with red labels indicating the drug name and specifications, and adding words such as "flammable\\explosive\\toxic". 7.5.6.8 Highly toxic drugs should be strictly managed and used in limited quantities with the approval and signature of the relevant departments: the remaining part should be returned to the warehouse by the recipient in person, or handed over to a designated person for processing.
7.5.6.9 When using toxic, flammable, explosive, volatile, anesthetic and irritating drugs, the following regulations should be observed: 1. The chemical properties, usage methods and precautions should be understood in advance, and the operation methods should be mastered; 1. The bottle mouth should be opened towards an unmanned place to prevent the drug from splashing and injuring people! 1. For highly toxic, irritating, anesthetic and volatile drugs, they should be handled in a fume hood with good ventilation conditions; KoNiKAca
GB 18152-- 2000
When handling toxic or highly toxic liquid drugs, a pipette should be used instead of sucking directly from the mouth; - When heating or preparing flammable or explosive drugs, this should be done in a safe place. - When using toxic or highly toxic drugs, the device should be rinsed clean immediately after the operation and the test bench should be wiped clean. 7.5.6.10 When transporting and using strong acids and alkalis, the following regulations should be observed: - Two people should be used to transport strong acids and alkalis in ladders or bottles; - Special racks or vehicles should be used for transportation, and they should be placed firmly and should not be carried on the shoulder, in a backpack or by hand. - Before transportation, the work points and materials used should be checked. If they are damaged, they should not be used; labor protection equipment should be fully worn;
… When using concentrated acids and alkalis in bottles, they should not be poured directly, but should be injected into the device by siphoning;. 1. When heating concentrated acid or alkali, it should be done in a well-ventilated fume hood, and the operator should not approach. 2. When preparing acid and alkali solutions, the concentrated acid or alkali should be slowly poured into the measured water, and water should not be poured into the concentrated acid or alkali. 3. If concentrated acid or alkali splashes into the eyes or skin, it should be quickly absorbed with cotton gauze and rinsed with a large amount of water. In serious cases, go to the hospital for emergency treatment immediately.
7.6 Dehydration
7.6.1 The filter should be operated evenly, and the ore distribution box and pipeline should be unobstructed. 7.6.2
The pedestrian walkway inside the large internal filter vacuum filter should be equipped with a safe bridge and stairs to the center plate of the peripheral transmission thickener, and railings should be installed. 7.6.3
7.6.4 When checking the center plate of the peripheral transmission thickener or the switch trough plate at night, there should be good lighting and walking in the opposite direction under the supervision of others. 7.6.5
The overflow trough of the thickener should be 4m above the ground; otherwise, safety railings should be installed near the roadside. 7.6.6 Before stopping the thickener, the ore feeding should be stopped, and the slurry can be continuously output for a certain period of time; before resuming normal operation, care should be taken to prevent the thickener from overloading.
Minerals with excessive particle size and specific gravity, various industrial wastes, etc. should not escape into the slurry shrinkage pool. 7.6.7
The tailings slurry that has not been concentrated shall not be sent to the pump station and tailings pond at will unless it is needed for accident handling. The grilles and baffles at the inlet of the ore flow channel and the mouth of the overflow channel of the concentration pool, as well as the ore discharge pipe (council, ditch) and other parts prone to tailings deposition should be regularly flushed and cleaned.
8 Tailings facilities
8.1 Tailings transportation
8.1.1 Pumping stations (especially high-pressure sand stations) should be equipped with necessary monitoring instruments and volumetric sand stations should be equipped with overpressure protection devices. Stations with higher hydrostatic pressure should be equipped with safety valves or water hammers after the sand pump check valve. 8.1.2 Accident tailings ponds should be regularly disinfected and always maintain sufficient storage volume. Accidental tailings overflow shall not be discharged arbitrarily. If temporary discharge is necessary, it shall be approved by the relevant departments.
8.1.3 Check valves and other safety protection devices on the tailings conveying system connected in series or directly connected over long distances shall be regularly inspected and maintained to ensure that they are intact and effective.
8.1.4. The grid installed at 1 meter of the slurry tank and the water level indicator installed in the tank should be frequently flushed, cleaned and maintained. 8.1.5 Tailings conveying pipes, troughs, ditches, channels and tunnels shall be inspected and maintained by fixed personnel in shifts to prevent siltation, blockage, pipe burst, spraying, leakage, collapse and other accidents: any faults shall be handled in time, and the non-released ore shall be properly handled. 8.1.6 The wall thickness of the metal pipeline shall be regularly checked and maintained to prevent leakage accidents. 8.1.7 In cold areas, the maintenance and management of gates, sluices and gates shall be strengthened, and anti-freezing measures shall be taken. 8.2 Tailings pond
8.2.1 The design of the tailings pond shall comply with the provisions of the "Design Standard for Tailings Pond Facilities in Ore Dressing Plants". 8.2.2 The construction and acceptance of the tailings pond and its ancillary facilities shall be carried out in accordance with the relevant construction acceptance specifications and design requirements. 8.2.3 The production and management of tailings ponds shall comply with the provisions of the "Regulations on the Management of Metallurgical Mining Facilities", HKANiKAca-
9 Transportation and Hoisting
9.1 Ore Bin and Ore Feeder
GB18152-2000
9.1.1 Protective poles shall be installed around the ore bin opening (except for the vehicle entry and exit). 9.1.2 The following regulations shall be observed in the tipping operation: 1. Inspect and confirm that there are no people and obstacles in and around the tipping machine and the mine car before tipping: 1. When inspecting the tipping machine (especially in the tipping machine or the ore chute), reliable safety measures shall be taken: 1. When the empty car is running, a reliable vehicle blocking device shall be installed: 1. When using a dump truck to unload the ore, a solid retaining wall shall be installed, and the height of the retaining wall shall not be less than two-fifths of the tire diameter. 9.1.3 The following provisions shall be observed in the treatment of chute feeder blockage and shed ore: When blocking ore, one should stand in the safety position on the side of the equipment to prevent the stone from rolling out and injuring people! When using blasting methods, there should be a special person in charge, and the relevant provisions of GB/T6722 shall be strictly implemented. 9.1.4 When checking the supply and ore position of the ore warehouse and troubleshooting, the safety belt should be fastened (its length is limited to the operation point), and the ore slope should not be stood on. There should be someone to supervise, and the lower part should stop discharging ore when necessary. 9.2 Belt conveyor
9.2.1 The transportation of belt conveyor shall comply with the relevant provisions of GB/T14784. 9.2.2 The operators of belt conveyor shall undergo safety and technical training and hold certificates before taking up their posts. 9.2.3 The distance between the corridor wall and the conveyor shall not be less than 1.0m on the pedestrian side and not less than 0.6m on the other side. When the pedestrians are more than 7 meters, steps shall be provided.
9.2.4 The belt conveyor should have corresponding measures to prevent reversal, tearing of rubber sheets, broken ropes, broken belts, deviation and derailment, and should have braking devices and devices for cleaning rubber belts and rollers. There should be signals, electrical interlocks and parking devices on the line. 9.2.5 The temperature of materials transported by belt conveyors should not exceed 120C. 9.2.6 The operation of belt conveyors should comply with the following regulations: Personnel should not ride on, cross, drill or climb belt conveyors. Belt conveyors should not transport materials other than specified materials. Minerals should not be picked up by hand from a running belt conveyor (except for hand-selected belts); debris on the conveyor belt, drive wheel and rotating wheel should be cleared by stopping the machine in time; it should not be cleaned under the running conveyor belt; a running belt conveyor should not be inspected, cleaned or oiled, and rotating parts such as rollers and sheaves should not be touched by hand. 9.2.7 The track of the belt conveyor with a discharge trolley should have a travel limit switch 9.2.8 When changing the fence, sweeper (scraper) and support, the vehicle should be stopped, the power should be cut off, and there should be a special person to supervise. 9.2.9 When the belt conveyor cannot move or slips, it should not be stepped on. Pushing, pulling or pressing the pole by hand should be used to deal with it: 9.3 Vehicle transportation
9.3.1 Vehicle transportation should comply with the relevant provisions of GB4387. 9.3.2 Motor vehicle drivers should undergo safety and technical training and be certified before taking up their posts. Trainees should drive motor vehicles, operate the license plate, and perform driving operations under the supervision of formal passengers and on-duty personnel. 9.3.3 When crossing a railway (or road) and not carrying out maintenance (maintenance) near it, the transportation department should be notified in advance and protective measures should be taken: the exposed materials used should not hinder driving safety; 9.3.4 The station yard, turnout area, material yard, loading and unloading line and the entrance and exit of the building should all have good lighting facilities; 9.3.5 Do not ride on the vehicle.
9.3.6 Do not start, stay on the railway, do not cut in, get in and rest under the vehicle; 9.3.7 In foggy days and when the dust is heavy, the warning lights should be turned on; when the vision is unclear, the vehicle should be driven slowly; on bends, roads and when taking over, overtaking is not allowed
9.3.8 When loading, the driver should not extend his head and arms outside the vehicle, and should not check and maintain the vehicle; 9.3.9 When driving in the factory area and on the south side of the vehicle, the prescribed roads should be followed, and conveyor belts, work racks and low-hanging wires should not be passed. HKANIKAa
GB18152—2000
9.3.10 Overweight, over-length, over-width and over-height shipments shall not be allowed, and the loaded articles shall be moved and tied securely. Freight trucks shall not be mixed with passengers and goods. 9.4 Lifting
9.4.1 The use and management of the metal structure, main parts and components, electrical equipment and safety protection devices of lifting machinery shall comply with the relevant provisions of CB/T6067.
9.4.2 Lifting machinery operators shall undergo safety technical training and assessment and hold a certificate before taking up their posts. 9.4.3 Lifting machinery shall be equipped with overwinding, overload and extreme position limiters, as well as start and accident signal devices, and safety interlocking protection devices shall be set up. 9.4.4 The operating mechanism of the rail crane shall have a travel limit switch and a buffer. There shall be a stopper or column at the end of the track. When more than two cranes are running on the same track, anti-collision devices should be installed. 5. When working in areas where there is a possibility of collision between crane components, relevant personnel should be contacted in advance and supervision should be carried out. 9.4.5
9.4.6 The following regulations should be observed when operating a crane: 1. If the smoke is too thick, the vision is lost or the signal is unclear, the operation should be stopped; 1. Do not pull or drag objects obliquely, or lift objects buried in the ground. Any objects of unknown weight should not be lifted: The wire rope used for lifting should be consistent with the specifications of the fixed iron clips, and the number of iron clips should be determined according to the lifting requirements; 1. The lifted object should not pass over the personnel; the extreme position should not be used. The crane should be stopped by the diameter limiter; when the crane is working, the hook and the pulley should be kept at a certain distance to prevent overwinding. When there are multiple cranes running on the same track, the minimum horizontal distance between the protruding parts of the two adjacent cranes should be no less than 2m; when two-layer cranes are operating at the same time, the lower layer should obey the upper layer; the brake should not be adjusted when lifting objects, and the brake pad should be replaced immediately if it is abnormally worn or worn more than half; when the crane hook reaches the lowest position, the wire rope on the drum should be no less than one circle, and the electromagnetic disk should not be used to replace the crane operation. 9.4.7 The staff should get on and off the crane at the designated location and should not walk beside the track. 9.4.8 The machine room of the corrective crane should be arranged on the side without conductive bare sliding wires, and a ladder for climbing the driver's cab should be set. If it is arranged on the same side of the conductive bare sliding wire, a safe conductive sliding wire should be used, and an anti-expansion plate should be installed between the ladder leading to the crane and the platform and the sliding wire. If the factory building is equipped with a double-layer crane, the power supply sliding wire of the lower crane should be equipped with an anti-expansion device along the length. 9.4.9 Do not cross from one crane to another. Do not use one crane to knock over another crane. 10 Electrical safety
10.1 General provisions
10.1.1 The electrical equipment of the concentrator shall comply with the requirements of GB 5U07U and other relevant specifications and regulations. 10.1.2 Gas outlet operators shall undergo special safety and technical training and be certified before taking up their posts. 10.1.3 Electrical operators shall be proficient in first aid methods for electric shock. 10.1.4 All electrical equipment and lines shall be equipped with obvious warning signs, protective nets and safety fences according to the degree of harm to people. 10.1.5 Electrical operators shall wear protective equipment and use protective gear when working. Repair and commissioning of electrical equipment and lines shall be carried out by gas operators.
10.1.6 Exposed live parts of gas outlet equipment that may be touched by people shall be equipped with safety protection covers or barriers and signs. 10.1.7 The power supply equipment and lines should strictly follow the operation ticket system for power outage and power supply. 10.1.8 When working on the power-off line, the power switch should be locked or unlocked in advance, and a signboard with the words "No power supply allowed when someone is working" should be hung. Use an electric tester to verify that there is no electricity, and install grounding wires at all ends of all possible power lines before working. 10.1.9 There should be no heat sources that damage electrical insulation or cause electrical fires near live wires, equipment, transformers, and oil switches. 10.1.10 Steel tape measures and wire rulers with metal wires should not be used around live equipment. 10.1.11 Fuses, fuses, fuses, thermal relays and other safety devices should be checked before use and should not be replaced or substituted at will. 10.2 Power supply, substation facilities
iiKANiKAca-5 Tailings conveying pipes, troughs, ditches, canals, and tunnels shall be inspected and maintained by designated personnel in shifts to prevent siltation, blockage, pipe burst, spraying, leakage, collapse and other accidents: any faults shall be promptly handled, and the non-released ore shall be properly handled. 8.1.6 The wall thickness of the pipeline shall be regularly inspected and maintained to prevent leakage accidents. 8.1.7 In cold areas, the maintenance of gates, sluices, and gates shall be strengthened, and anti-freezing measures shall be taken. 8.2 Tailings pond
8.2.1 The design of the tailings pond shall comply with the provisions of the "Design Standard for Tailings Pond Facilities in Ore Dressing Plants". 8.2.2 The construction and acceptance of the tailings pond and its ancillary facilities shall be carried out in accordance with the relevant construction acceptance specifications and design requirements. 8.2.3 The production and management of tailings ponds shall comply with the provisions of the "Regulations on the Management of Metallurgical Mining Facilities", HKANiKAca-
9 Transportation and Hoisting
9.1 Ore Bin and Ore Feeder
GB18152-2000
9.1.1 Protective poles shall be installed around the ore bin opening (except for the vehicle entry and exit). 9.1.2 The following regulations shall be observed in the tipping operation: 1. Inspect and confirm that there are no people and obstacles in and around the tipping machine and the mine car before tipping: 1. When inspecting the tipping machine (especially in the tipping machine or the ore chute), reliable safety measures shall be taken: 1. When the empty car is running, a reliable vehicle blocking device shall be installed: 1. When using a dump truck to unload the ore, a solid retaining wall shall be installed, and the height of the retaining wall shall not be less than two-fifths of the tire diameter. 9.1.3 The following provisions shall be observed in the treatment of chute feeder blockage and shed ore: When blocking ore, one should stand in the safety position on the side of the equipment to prevent the stone from rolling out and injuring people! When using blasting methods, there should be a special person in charge, and the relevant provisions of GB/T6722 shall be strictly implemented. 9.1.4 When checking the supply and ore position of the ore warehouse and troubleshooting, the safety belt should be fastened (its length is limited to the operation point), and the ore slope should not be stood on. There should be someone to supervise, and the lower part should stop discharging ore when necessary. 9.2 Belt conveyor
9.2.1 The transportation of belt conveyor shall comply with the relevant provisions of GB/T14784. 9.2.2 The operators of belt conveyor shall undergo safety and technical training and hold certificates before taking up their posts. 9.2.3 The distance between the corridor wall and the conveyor shall not be less than 1.0m on the pedestrian side and not less than 0.6m on the other side. When the pedestrians are more than 7 meters, steps shall be provided.
9.2.4 The belt conveyor should have corresponding measures to prevent reversal, tearing of rubber sheets, broken ropes, broken belts, deviation and derailment, and should have braking devices and devices for cleaning rubber belts and rollers. There should be signals, electrical interlocks and parking devices on the line. 9.2.5 The temperature of materials transported by belt conveyors should not exceed 120C. 9.2.6 The operation of belt conveyors should comply with the following regulations: Personnel should not ride on, cross, drill or climb belt conveyors. Belt conveyors should not transport materials other than specified materials. Minerals should not be picked up by hand from a running belt conveyor (except for hand-selected belts); debris on the conveyor belt, drive wheel and rotating wheel should be cleared by stopping the machine in time; it should not be cleaned under the running conveyor belt; a running belt conveyor should not be inspected, cleaned or oiled, and rotating parts such as rollers and sheaves should not be touched by hand. 9.2.7 The track of the belt conveyor with a discharge trolley should have a travel limit switch 9.2.8 When changing the fence, sweeper (scraper) and support, the vehicle should be stopped, the power should be cut off, and there should be a special person to supervise. 9.2.9 When the belt conveyor cannot move or slips, it should not be stepped on. Pushing, pulling or pressing the pole by hand should be used to deal with it: 9.3 Vehicle transportation
9.3.1 Vehicle transportation should comply with the relevant provisions of GB4387. 9.3.2 Motor vehicle drivers should undergo safety and technical training and be certified before taking up their posts. Trainees should drive motor vehicles, operate the license plate, and perform driving operations under the supervision of formal passengers and on-duty personnel. 9.3.3 When crossing a railway (or road) and not carrying out maintenance (maintenance) near it, the transportation department should be notified in advance and protective measures should be taken: the exposed materials used should not hinder driving safety; 9.3.4 The station yard, turnout area, material yard, loading and unloading line and the entrance and exit of the building should all have good lighting facilities; 9.3.5 Do not ride on the vehicle.
9.3.6 Do not start, stay on the railway, do not cut in, get in and rest under the vehicle; 9.3.7 In foggy days and when the dust is heavy, the warning lights should be turned on; when the vision is unclear, the vehicle should be driven slowly; on bends, roads and when taking over, overtaking is not allowed
9.3.8 When loading, the driver should not extend his head and arms outside the vehicle, and should not check and maintain the vehicle; 9.3.9 When driving in the factory area and on the south side of the vehicle, the prescribed roads should be followed, and conveyor belts, work racks and low-hanging wires should not be passed. HKANIKAa
GB18152—2000
9.3.10 Overweight, over-length, over-width and over-height shipments shall not be allowed, and the loaded articles shall be moved and tied securely. Freight trucks shall not be mixed with passengers and goods. 9.4 Lifting
9.4.1 The use and management of the metal structure, main parts and components, electrical equipment and safety protection devices of lifting machinery shall comply with the relevant provisions of CB/T6067.
9.4.2 Lifting machinery operators shall undergo safety technical training and assessment and hold a certificate before taking up their posts. 9.4.3 Lifting machinery shall be equipped with overwinding, overload and extreme position limiters, as well as start and accident signal devices, and safety interlocking protection devices shall be set up. 9.4.4 The operating mechanism of the rail crane shall have a travel limit switch and a buffer. There shall be a stopper or column at the end of the track. When more than two cranes are running on the same track, anti-collision devices should be installed. 5. When working in areas where there is a possibility of collision between crane components, relevant personnel should be contacted in advance and supervision should be carried out. 9.4.5
9.4.6 The following regulations should be observed when operating a crane: 1. If the smoke is too thick, the vision is lost or the signal is unclear, the operation should be stopped; 1. Do not pull or drag objects obliquely, or lift objects buried in the ground. Any objects of unknown weight should not be lifted: The wire rope used for lifting should be consistent with the specifications of the fixed iron clips, and the number of iron clips should be determined according to the lifting requirements; 1. The lifted object should not pass over the personnel; the extreme position should not be used. The crane should be stopped by the diameter limiter; when the crane is working, the hook and the pulley should be kept at a certain distance to prevent overwinding. When there are multiple cranes running on the same track, the minimum horizontal distance between the protruding parts of the two adjacent cranes should be no less than 2m; when two-layer cranes are operating at the same time, the lower layer should obey the upper layer; the brake should not be adjusted when lifting objects, and the brake pad should be replaced immediately if it is abnormally worn or w
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