JB 10144-1999 Safety requirements for shot blasting (blasting) equipment
Some standard content:
ICS77.180
J61
JB
Machinery Industry Standard of the People's Republic of China
JB10144-1999
Shot (blasting) equipment
Safety requirements
Shot(air)blastequipmentSafetyrequirements1999-10-08 released
National Machinery Industry Bureau released
Implemented on 2000-03-01
JB10144—1999||tt| |Foreword
This standard is formulated in accordance with the provisions of GB/T16755-1997 "Rules for Drafting and Presentation of Mechanical Safety Standards". It belongs to Class C safety standards and stipulates safety requirements for shot blasting equipment. Since domestic Class A and Class B safety standards are currently being formulated one after another, all published Class A and Class B safety standards that can be cited have been cited in this standard, and there are no Class A and Class B that can be cited. Safety standards, this standard specifies specific safety requirements in terms. This standard will come into effect on March 1, 2000. This standard is proposed and administered by the National Foundry Machinery Standardization Technical Committee. This standard was drafted by: Jinan Foundry and Forging Machinery Research Institute, Qingdao Huaqing Casting Machinery Co., Ltd., Qingdao Huanghe Foundry Machinery Factory
The main drafters of this standard: Liu Tongqing, Li Yueming, Wang Yongming. 1 model diagram
Machine Industry Standard of the People's Republic of China
Shot (blast) equipment
Safety requirements
Shot (air)blast equipment-Safety requirementsJB10144-1999|| tt||This standard specifies the safety requirements and measures that designers, manufacturers and suppliers of shot blasting equipment should follow. This standard is applicable to all types of ground (peening) shot equipment (hereinafter referred to as equipment) that performs shot blasting, shot peening or combined shot peening and T treatment on the surface of workpieces
This standard also applies to ground (blasting) equipment Each unit and auxiliary equipment that is a fixed part of the pill equipment. 2 Referenced standards
The provisions contained in the following standards constitute provisions of this standard through reference in this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties using this standard should explore the possibility of using the latest version of the standard listed below. GB150—1998
GB 2893—1982
GB 5083—1999
GB/T 5226.11996
GB12265.1—1997
GB 12265.31997||tt ||GB/T14776—1993
GB/T 15706.1—1995
GB/T 15706.2—1995
GB/T16251—1996
GB 16754—1997|| tt||GB/T 16855.11997
GB/T16856—1997
JB/T 5365.2—1991
JB5545—1991
JB/T 6331.2—1992||tt ||JB/T 7536—1994
JB/T 9978-[999
3 definitions
Steel pressure vessels
Safety color
Production equipment General Principles of Safety and Hygiene Design
Next. Industrial Machinery and Electrical Equipment Part 1: General technical conditions Mechanical safety Safety distance to prevent upper limbs from touching the danger zone Mechanical safety Minimum distance to avoid crowding of various parts of the human body Ergonomics Design principles for job size Basic Concepts and General Design Principles of Numerical Machinery Safety Part 1: Basic Terminology, Methodology Basic Concepts and General Design Principles of Machinery Safety Part 2: Technical Principles and Specifications Human T-Effect Principles for Operating System Design
Machine Safety emergency stop design principles
Safety components related to machine quilt safety control system Part 1: General principles of design Principles of mechanical safety risk assessment
Methods for measuring cleanliness of casting machinery Microscope method Technical conditions for safety protection of casting machinery
Determination method of casting machinery noise Sound pressure level determination General terminology of machinery safety
Casting machinery terminology
In addition to the use of GB12265.1, GB12265.3, GB/T15706.I, this standard GB/T16855.1, GB/T16856, JB/T7536 National Machinery Industry Bureau approved on 1999-10-08 for implementation on 2000-03-01
JB 10144—1999
and JB/T9978 In addition to the definitions of , the following definitions also apply. 3.1T piece carrier
is a device that carries T pieces and brings the workpiece to the shot blasting and/or shot blasting station in a certain motion. Such as rollers, crawlers, smart chain turntables, etc.
3.2 Projectile circulation system
An automatic circulation system that enables projectiles to be recovered and provided to the shot blaster or shot blaster. The most common system type is composed of screw conveyor, bucket elevator, roller screen, shot and sand separator, etc. 3.3T. Piece loading and unloading system
A device for loading workpieces into the workpiece carrier or unloading the workpiece from the workpiece carrier. Such as manipulators, grabbers, spreaders, etc. 3.4 Zero mechanical state
This is the state where the equipment is in the following mechanical state: a) Every power source that can produce mechanical movement has been disconnected and locked; b) After the power source of Leli fluid is disconnected , release part of the pressure medium into the atmosphere or container to eliminate the pressure generated on the equipment due to disconnection of the fluid power source;
c) All pressure vessels are depressurized to atmospheric pressure d) The machinery of all parts of the equipment The potential energy is at its lowest actual value; e) The pressure fluid trapped in the equipment pipeline, cylinder or other components will not cause the equipment to move under the action of any valve: f) The kinetic energy of the equipment components has the lowest actual value ;) Moving or loose equipment parts are fixed: h) Every process and step that puts the equipment in a zero mechanical state should be subject to a startup test by the starter after locking it (such as when the motor power is cut off and locked, You can verify that the motor fails to start by pressing the start button). 4 Important hazardous items
The following important hazardous items are the results of risk assessment for equipment within the scope of application of this standard in accordance with the provisions of GB/T16856. These dangerous items may occur when the equipment is used under the intended use conditions specified in the instruction manual and during transportation, installation, adjustment, maintenance, disassembly and processing.
4.1 Mechanical hazards
4.1.1 Projectile hazards generated by equipment. 4.1.2 Extrusion hazards, shear hazards, and collision hazards caused by equipment parts. 4.1.3 The risk of entanglement caused by the rotation and/or rotation of moving parts of the equipment. 4.1.4 Impact hazards caused by falling or throwing equipment parts and/or workpieces. 4.1.5 Risk of stabbing or stabbing injuries on the surface, edges or corners of the equipment. 4.1.6 Risks of slipping, falling, and falling caused by working at heights or around equipment. 4.1.7 There is a danger of high-pressure fluid injection or explosion caused by hydraulic systems, pneumatic systems and shot blasting tanks. 4.1.8 During installation and transportation, there is a risk of accidental tipping, movement or falling due to excessive weight, poor stability, insufficient strength of the spreader, etc.
4.2 Electrical hazards
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4.2.1 Electric shock hazards and thermal radiation hazards generated by electrical systems. 4.2.2 The danger of electrostatic discharge caused by the accumulation of static electricity in the shot blasting hose. 4.3 Noise danger
Hearing loss and other dangers caused by noise around the equipment. 4.4 Hazards arising from materials and substances
4.4.! Danger caused by operator contact or inhalation of dust. 4.4.2 Burning or explosion hazards caused by production dust. 4.5 Danger caused by ignoring ergonomic principles when designing equipment, such as excessive force, misoperation, fatigue, etc. 5·Safety requirements and/or measures
5.1 Basic requirements
5.1.! Equipment should be designed to minimize risks and achieve intrinsic safety. For risks that cannot be appropriately avoided or adequately limited by design, safety guards should be used to protect the operator. 5.1.2 The safety design of the equipment should comply with the regulations of GB/T15706.1, GB/T15706.2 and GB5083. 5.1.3 In addition to complying with the provisions of this standard, the safety of the equipment should also comply with the relevant provisions of JB5545. 5.1.4 The safety requirements and design of relevant safety components of the control system shall comply with the relevant provisions of GB/T16855.1. 5.1.5. The design of the equipment should fully reflect the principles of human T-effects and should comply with the provisions of GB/T14776, GB/T16251 and other relevant standards.
5.1.6 For residual risks that cannot be eliminated or sufficiently reduced by design and for which safety protection devices are ineffective or not fully effective, users of the equipment should be notified and warned through usage information. Usage information is an integral part of the device supply. Usage information should not be used to remedy design deficiencies or to replace safety guards: 5.2 Safety requirements for mechanical hazards
5.2.1 Doors on equipment! (Hole) should be interlocked with the shot shaking and/or shot peening control device. Unless these doors (holes) are closed, shot blasting and/or shot peening will not be started: In addition, the door (hole) of the equipment should be attached with a fixed Good warning signs. 5.2.2 The sealing of the equipment should be good, and all seals should be able to withstand the impact and wear of projectiles. There should be no projectiles flying out after the doors (holes) and observation windows on the equipment are closed. If meeting this requirement will seriously affect the performance of the equipment, other effective safety measures should be installed at the doors (holes) to prevent projectiles from flying out. Measure 5.2.3 The observation window on the equipment should be made of a shatter-resistant colorless transparent plate with a thickness of not less than 5mm, and effective protective measures should be taken for the plate. 5.2.4 The inner wall of the equipment should be equipped with a guard plate that can withstand the impact and wear of projectiles. The installation of the guard plate should be firm and easy to replace. 5.2.5 When operators engaged in installation, commissioning, adjustment, repair or maintenance are inside the equipment, the equipment should be in a zero mechanical state to ensure that other personnel will not be able to start the shot blaster and/or shot blaster and shot supply system. 5.2.6 In addition to meeting other relevant requirements specified in 5.2, handheld spray gun type shot peening equipment should also meet the following requirements. 5.2.6.1 The start and end of shot peening should be under the sole control of the operator. 5.2.6.2 The shot peening control switch should be firmly installed on the shot peening hose or spray gun of the shot peening equipment and be easy for the operator to use. The control output of the control switch should be a safe voltage
5.2.6.3 The injection of projectiles should be started and maintained by the operator pressing the shot peening control switch with his hand. JB101441999
5.2.6.4 When the shot peening control switch is not under operator control, the projectiles in the shot peening tank cannot accidentally start spraying (such as the nozzle falling)
5.2.6.5 on the equipment 1 (Hole 1 is allowed to be opened from both the inside and outside, but the door (hole) for the entrance of the T lower part for operators to enter and exit should only be opened from the outside
5.2.6.6 In the case where a shot blaster is installed When blasting in the equipment, the power supply of the shot blasting machine should be cut off and locked. The equipment should be equipped with a lock that can cut off the power supply by each operator engaged in this operation. 5.2.7 In a moving state that is easily accessible to the operator. Effective protective devices or effective restrictions should be installed at the moving parts (such as flywheels, gears, pulleys, shafts, belts, chains, shot blaster blades, spiral blades, etc.), or between moving parts and stationary parts. Measures, protective devices or restrictive measures shall not cause additional risks. Protective devices shall comply with the provisions of 4.2.2 in GB/15706.2-1995. Restrictive measures shall comply with the provisions of GB12265.1, GB12265.3 and other relevant standards. 5.2.8 Moving parts equipped with protective equipment should have an interlocking device that stops the movement when the protective device is opened. Otherwise, there should be a warning sign indicating that opening the protective device is dangerous or that the transmission device should be cut off to allow it to be opened. 5.2.9 The T-piece carrier should be equipped with a reliable limiting device. 5.2.10 Under dynamic conditions, the projectile circulation system and T-piece carrier should be able to withstand a load of 1.2 to 1.3 times the rated load. 5.2.11 Bucket type. The elevator should be equipped with a safety device to prevent overspeeding and reversal. This device should play an effective protective role when the power is cut off or fails
5.2.12. The tensioning device of the bucket elevator should be equipped with a safety device. Limit position limit device. 5.2.13 The T-piece carrier and T-piece loading and unloading system exposed outside the equipment should be equipped with protective devices. If it is impossible to install protective devices due to T. technology requirements, they should be installed according to the provisions of GB2893. The end of the component or the side facing the operator is painted with yellow and black lines of the same width at a 45° slope, with a line width of 20~50mm, or a blocking device (such as a bar painted with red and white colors), To draw the operator's attention to safety.
5.2.14 When a certain system of the equipment is being adjusted, repaired or maintained, the system itself should not pose a risk to the operator at this time. Other systems should be in a zero mechanical state.
5.2.15 The positioning and connection of equipment parts should be firm and reliable. 5.2.16 The eccentric block of the electric vibrator should be firmly installed on the shaft, and a cover should be installed. 5.2.17 The projectile circulation system should be installed. The pellets provided to the shot supply system should not contain large metal blocks, burrs and other debris. The amount of impurities in the pellets should not be greater than 1%, and the total number of pellets that are recycled should not be less than the nominal size. More than 80%. 5.2.18 The inner and outer walls of the equipment, including doors (holes) and observation windows, should be able to withstand the impact of broken blades thrown by the shot blaster. 5.2.19 Be easily accessible without affecting the use. Mechanical parts should not have sharp edges, corners, rough surfaces, or flanges that may cause injury to the operator. The edges of metal sheets should be blunted, folded or trimmed, and open pipe ends that may cause scratches should be covered. 5.2.20 The aerial work platform on the equipment should be equipped with reliable protective fences and footboards, and should have the possibility of safely entering the work site. T. Platform and ladder facilities should comply with the provisions of Chapter 13 of JB5545-1991. 5.2.21 Equipment should be designed and supplied in such a way that the risk of slipping, falling and falling is reduced to a minimum during the period of use of the equipment. 5.2.22 The equipment should minimize the risk of accidental tipping, movement or falling due to overweight, poor stability, insufficient strength of the spreader, etc. during installation and transportation. This should be done by designing and providing reliable equipment and equipment. Shipping method to ensure. 5.2.23 Safety requirements for wave pressure systems and pneumatic systems 5.2.23.1 There should be filters, pressure regulators and low-pressure disconnecting devices. 4
JB10144-1999
5.2.23.2 Should be equipped with energy-saving devices A device to ensure that the T operating pressure remains within the allowable range. 5.2.23.3 All pipelines, pipe threaded joints, drain pipes, balances or reservoirs, core holes or drilled holes should be free of burrs or foreign matter to prevent possible damage to valves or components caused by burrs or foreign matter. System cleanliness should comply with relevant standards. The hydraulic pipeline should have sampling means that comply with the provisions of JB/T5365.2 to regularly check the cleanliness of the hydraulic system. 5.2.23.4 If possible, piping from one component of the system to the next should not be interrupted. Safety measures should be taken to prevent damage due to thermal expansion, and fixed pipes should be securely fastened to avoid vibration or movement. Precautions should be taken to prevent kinks in the pressure medium hoses, which could cause blockages and impede the flow of pressure medium. 5.2.23.5 Wherever there is pressure drop, it may lead to dangerous actions. The connection between pipelines should be able to prevent such pressure loss. It is not allowed to use sleeve-type pipe joints, adhesive sealing rings or similar methods to connect pipelines. 5.2.23.6 The working valve should be designed to be able to freely discharge leakage from behind the inlet port in non-working conditions and prevent pressure build-up in the T operating cylinder.
5.2.23.7T valve should not be designed to close the inlet and discharge port at the same time. 5.2.23.8 The drain port and pipeline between the T working cylinder and the valve should be large enough to ensure that the medium is quickly discharged from the working cylinder and to prevent residual pressure in the cylinder.
5.2.23.9 The control valve should be installed at an appropriate location that is easily accessible and prevents damage. If the valve is operated manually or mechanically (as opposed to electrically), it shall be forced to return to the 5.2.23.101
disengaged position at the end of the cycle.
5.2.23.11 Parts in hydraulic and pneumatic systems should be protected from pressures exceeding the maximum working pressure, and the pressure can be controlled through pressure limiting valves. When using other measures for pressure control, the requirements of the application should be met. The scheme design, structural design and adjustment of the system should limit the pressure shock to a minimum. No danger of pressure surges is allowed. 5.2.23.12 The pressure medium used in hydraulic systems and pneumatic systems is compatible with all components, elastomers and filter elements used in the system, and is consistent with the recommendations of the manufacturer and/or supplier of the hydraulic system or pneumatic system. 5.2.23.13 The high-pressure hoses of hydraulic systems and pneumatic systems arranged in the operating area should be equipped with additional protective plates. The protective plates should be able to block the risk of injection caused by high-pressure hose failure. 5.2.23.14 In the hydraulic system with its own hydraulic device, a suitable overpressure valve should be installed. In order to release the intake air, an exhaust device or an automatic exhaust system should be installed.
5.2.23.15 The hydraulic system should be designed so that leaking liquid cannot cause danger. 5.2.23.16 If the valves or other components of the pneumatic system need to be lubricated, in order to allow the lubricating oil to enter the air pipeline, an appropriate form of visual automatic lubrication device should be installed. 5.2.23.17 If the pneumatic system uses a muffler, the muffler should be measured and installed according to the data provided by the manufacturer. At the same time, the impact on the equipment should be considered. 5.2.23.18 The pneumatic system should be equipped with a water separator and air filter. 5.2.23.19 Shot blasting tanks and other pressure vessels should be designed, manufactured, accepted and used in accordance with the provisions of GB150 and the "Regulations on Safety Technical Supervision of Pressure Vessels".
5.2.24 Safety requirements for control systems
5.2.24.1 The control system should be able to achieve interlocking according to the specified action sequence. 5.2.24.2 The electrical interlocking should have the function of preventing accidental failures and/or dangerous events caused by malfunctions. 5
JB10144-1999
5.2.24.3 The control system should be equipped with necessary automatic monitoring functions, triggering the alarm when a certain fault occurs and making it impossible to start a new working cycle before the fault is eliminated
Note: Equipment applicable to flammable and explosive materials and projectile materials should meet the requirements of this article. 5.2.24.4 If the equipment has different working modes and circulation modes (such as manual, automatic, single action or linkage of several systems during installation, adjustment and maintenance of shot blaster or shot peening machine, spring circulation system, T-piece carrier, ventilation and dust removal system, etc.), a conversion switch should be used and placed in a locked cabinet. It is also possible to use a conversion switch with key lock or removable handle for each working mode and circulation mode.
5.2.24.5 The equipment should be equipped with an emergency stop device, which should be able to stop all dangerous operations and movements. After resetting the emergency stop device, it should not cause restart. The emergency stop function requirements and design principles should comply with the relevant provisions of GB16754. 5.2.24.6 The pause and stop devices in the control system should not cause any dangerous situation after resetting. 5.3 Safety requirements for electrical hazards
5.3.1 The electrical system of the equipment should prevent electrical hazards in accordance with the provisions of GB/T5226.1. 5.3.2 The shot blasting hose and spray gun should be equipped with a device to eliminate static electricity from the nozzle, or an anti-static shot blasting hose should be used. Note: It is better to connect the grounding device directly to the hose 1. 5.4 Safety requirements for noise hazards
5.4.1 Under the condition of no-load operation, the noise limit values ??of equipment equipped with one or two ground shot blasting machines and equipment equipped with more than two ground shot blasting machines are 90dB (A) and 93dB (A) respectively. Under the condition of no-load operation, the noise limit value of single-gun shot blasting equipment that can automatically circulate the projectiles is 85dB (A). The noise measurement method shall be in accordance with the provisions of JB/T6331.2. 5.4.2 The equipment shall take measures to minimize the risk of noise radiation. 5.4.3 The exhaust hole of the air valve shall use a muffler. 5.4.4 Pipes arranged in parallel shall not touch each other to prevent noise and screaming. 5.5 Safety requirements for hazards caused by materials and substances The equipment shall be equipped with a ventilation and dust removal system or an interface connected to the dust removal system during use. The ventilation volume of the equipment should be able to meet the requirements of dust removal 5.5.1||tt| ... If it is inconvenient or the process does not allow direct grounding, it can be indirectly grounded through static electricity materials or products. The direct grounding resistance of static electricity should not be greater than 100Q, and the indirect grounding resistance should not be greater than 10°0; c) The pipeline for conveying dust should be made of metal or anti-static materials; d) The operator in the equipment should take anti-static measures: e) The bearings in the equipment should be sealed and dustproof:
1) It is prohibited to use the method of directly grounding metal conductors or screens in contact with high-speed flowing dust to eliminate static electricity; 6
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g) The sparks generated by the friction between metal dust such as aluminum, magnesium, iron and titanium and rusted steel are particularly dangerous ignition sources. When the above metal or alloy dust exists, friction sparks should be prevented; h) The equipment should be equipped with an explosion vent, and the speed of the explosion venting pressure release should be fast enough to ensure that the equipment structure is not damaged. Leli release action itself should not cause danger to the operator
5.6 Others
The correct repair or maintenance of the equipment is essential to the safety of the operator. It should be emphasized in the instruction manual: a) Before placing any part of the operator's body in the danger zone, the equipment should be placed in a zero mechanical state; b) The shot blasting hose should be checked regularly for soft spots and leaks. Defective hoses should be repaired or replaced; c) When the inner diameter of the spray gun nozzle is worn to 1.17 times the inner diameter of the nozzle before the spray gun is used, a new nozzle should be replaced; d) The metal pipes and accessories of the shot supply system should be checked regularly to prevent excessive wear. Defective pipes and joints should be repaired or replaced;
e) Broken or severely damaged or corroded protective plates, impellers, directional sleeves, shot separators and their fasteners should be replaced and inspected regularly:
f) All seals that prevent projectiles from flying out should be replaced if found to be defective;g) The workpiece carrier or all load-supporting mechanisms should be replaced if defective:h) Projectiles and dust scattered on the ground and equipment should be cleaned up to prevent danger:1) The hooks and slings used should be inspected regularly in accordance with relevant regulations:j) Lubricate the lubrication points regularly
6 Determination of safety requirements and/or measures
Whether the equipment complies with the safety requirements and/or measures in Chapter 5 should be determined by the following four methods. According to the nature of the safety requirements and/or measures, the determination method shall follow the following priority order. When the former method cannot be implemented or cannot be determined, the latter method is allowed to be used for determination, and the methods are carried out in sequence. At least one method is required to determine a safety requirement and/or measure. When a certain safety requirement and/or measure has multiple methods to determine, the results of the determination by the methods shall be consistent. 6.1 Determination method 1-functional test
Check whether the function of the equipment meets the requirements through safety function test. If the safety function test cannot be realized objectively due to technical reasons, or only destructive test can be used, or it will lead to excessive cost to reduce the risk to the required level, etc., then follow the methods given in 6.2, 6.3 and 6.4.
6.2 Determination method 2 - testing
Use testing instruments and meters, preferably existing and standardized measurement methods, to check whether the specified requirements are within the limits. If the measurement method cannot prove whether the equipment meets the requirements due to current technical limitations, or the safety requirements and/or measures are qualitative, etc., then use the methods given in 6.3 and 6.4.
6.3 Determination method 3 - calculation and/or viewing drawings Use calculations and/or drawings to analyze and check whether the equipment meets the requirements. This method is applicable to certain specific requirements (such as stability, center of gravity position, mechanical strength, etc.). If a clear conclusion cannot be drawn only through calculations and/or drawings, then use the method given in 6.4. 6.4 Determination method 4 - fog observationwwW.bzxz.Net
By visually measuring the specified parts, check whether the equipment meets the requirements and performance required.2 The electrical interlock shall have the function of preventing accidental failure and/or dangerous events caused by malfunction. 5
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5.2.24.3 The control system shall have the necessary automatic monitoring function, trigger the alarm when a certain fault occurs and start a new working cycle before the fault is eliminated
Note: The equipment applicable to flammable and explosive materials and projectile materials shall meet the requirements of this article. 5.2.24.4 If the equipment has different working modes and circulation modes (such as manual, automatic, single action or linkage of several systems during installation, adjustment and maintenance of shot blaster or shot peening machine, spring circulation system, T-piece carrier, ventilation and dust removal system, etc.), a conversion switch should be used and placed in a locked cabinet. It is also possible to use a conversion switch with key lock or removable handle for each working mode and circulation mode.
5.2.24.5 The equipment should be equipped with an emergency stop device, which should be able to stop all dangerous operations and movements. After resetting the emergency stop device, it should not cause restart. The emergency stop function requirements and design principles should comply with the relevant provisions of GB16754. 5.2.24.6 The pause and stop devices in the control system should not cause any dangerous situation after resetting. 5.3 Safety requirements for electrical hazards
5.3.1 The electrical system of the equipment should prevent electrical hazards in accordance with the provisions of GB/T5226.1. 5.3.2 The shot blasting hose and spray gun should be equipped with a device to eliminate static electricity from the nozzle, or an anti-static shot blasting hose should be used. Note: It is better to connect the grounding device directly to the hose 1. 5.4 Safety requirements for noise hazards
5.4.1 Under the condition of no-load operation, the noise limit of equipment equipped with one or two ground shot blasting machines and equipment equipped with more than two ground shot blasting machines is 90dB (A) and 93dB (A) respectively. Under the condition of no-load operation, the noise limit of single-gun shot blasting equipment that can automatically circulate the projectiles is 85dB (A). The noise measurement method shall be in accordance with the provisions of JB/T6331.2. 5.4.2 The equipment shall take measures to minimize the risk of noise radiation. 5.4.3 The exhaust hole of the air valve shall use a muffler. 5.4.4 Pipes arranged in parallel shall not touch each other to prevent noise and screaming. 5.5 Safety requirements for hazards caused by materials and substances The equipment shall be equipped with a ventilation and dust removal system or an interface connected to the dust removal system during use. The ventilation volume of the equipment should be able to meet the requirements of dust removal 5.5.1||tt| ... If it is inconvenient or the process does not allow direct grounding, it can be indirectly grounded through static electricity materials or products. The direct grounding resistance of static electricity should not be greater than 100Ω, and the indirect grounding resistance should not be greater than 10°0; c) The pipeline for conveying dust should be made of metal or anti-static materials; d) The operator in the equipment should take anti-static measures: e) The bearings in the equipment should be sealed and dustproof:
1) It is prohibited to use the method of directly grounding metal conductors or screens in contact with high-speed flowing dust to eliminate static electricity; 6
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g) The sparks generated by the friction between metal dust such as aluminum, magnesium, iron and titanium and rusted steel are particularly dangerous ignition sources. When the above metal or alloy dust exists, friction sparks should be prevented; h) The equipment should be equipped with an explosion vent, and the speed of the explosion venting pressure release should be fast enough to ensure that the equipment structure is not damaged. Leli release action itself should not cause danger to the operator
5.6 Others
The correct repair or maintenance of the equipment is essential to the safety of the operator. It should be emphasized in the instruction manual: a) Before placing any part of the operator's body in the danger zone, the equipment should be placed in a zero mechanical state; b) The shot blasting hose should be checked regularly for soft spots and leaks. Defective hoses should be repaired or replaced; c) When the inner diameter of the spray gun nozzle is worn to 1.17 times the inner diameter of the nozzle before the spray gun is used, a new nozzle should be replaced; d) The metal pipes and accessories of the shot supply system should be checked regularly to prevent excessive wear. Defective pipes and joints should be repaired or replaced;
e) Broken or severely damaged or corroded protective plates, impellers, directional sleeves, shot wheels and their fasteners should be replaced and inspected regularly:
f) All seals that prevent projectiles from flying out should be replaced if found to be defective;g) The workpiece carrier or all load-supporting mechanisms should be replaced if defective:h) Projectiles and dust scattered on the ground and equipment should be cleaned up to prevent danger:1) The hooks and slings used should be inspected regularly in accordance with relevant regulations:j) Lubricate the lubrication points regularly
6 Determination of safety requirements and/or measures
Whether the equipment complies with the safety requirements and/or measures in Chapter 5 should be determined by the following four methods. According to the nature of the safety requirements and/or measures, the determination methods shall follow the following priority order. When the former method cannot be implemented or cannot be determined, the latter method is allowed to be used for determination, and they shall be carried out in sequence. At least one method is required to determine a safety requirement and/or measure. When a certain safety requirement and/or measure has multiple methods to determine, the results of the determination by the methods shall be consistent. 6.1 Determination method 1-functional test
Check whether the function of the equipment meets the requirements through safety function test. If the safety function test cannot be realized objectively due to technical reasons, or only destructive test can be used, or it will lead to excessive cost to reduce the risk to the required level, etc., then the methods given in 6.2, 6.3 and 6.4 shall be used.
6.2 Determination method 2 - detection
Use detection instruments and meters, give priority to existing and standardized measurement methods, and check whether the specified requirements are within the limits. If the measurement method cannot prove whether the equipment meets the requirements due to current technical limitations, or the safety requirements and/or measures are qualitative, etc., then follow the methods given in 6.3 and 6.4.
6.3 Determination method 3 - calculation and/or viewing drawings Use calculations and/or drawings to analyze and check whether the equipment meets the requirements. This method is applicable to certain specific requirements (such as stability, center of gravity position, mechanical strength, etc.). If a clear conclusion cannot be drawn only through calculations and/or drawings, follow the methods given in 6.4. 6.4 Determination method 4 - fog observation
By visually measuring the specified parts, check whether the equipment meets the requirements and performance required.2 Electrical interlocking should have the function of preventing unexpected failures and/or dangerous events caused by malfunction. 5
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5.2.24.3 The control system should be equipped with necessary automatic monitoring functions. When a certain fault occurs, the alarm is triggered and it is impossible to start a new work cycle before the fault is eliminated.
Note: The equipment applicable to flammable and explosive materials and projectile materials should meet the requirements of this article. 5.2.24.4 If the equipment has different operation modes, the circulation mode (such as manual, automatic, shot blaster or shot blaster, blast circulation system, T piece carrier, ventilation and dust removal system, etc.) during installation, adjustment and maintenance Single action or linkage of several systems, etc.), a transfer switch should be used and placed in a locking cabinet. It can also be used with a key lock or a removable handle for each working mode and cycle mode. Transfer switch
5.2.24.5 Equipment J should be equipped with an emergency stop device. The emergency stop device should be able to stop all dangerous operations and movements. Resetting the emergency stop device should not cause a restart. Emergency stop function requirements and design The principle should comply with the relevant provisions of GB16754. 5.2.24.6 The pause and stop devices in the control system should not cause any dangerous situations after being reset. 5.3 Safety requirements for electrical hazards
5.3.1 The electrical system of the equipment should prevent electrical hazards in accordance with the provisions of GB/T5226.1. 5.3.2 The shot blasting hose and spray gun should be equipped with a device to eliminate static electricity from the nozzle, or an anti-static shot blasting hose should be used. Note: It is more preferable to connect the grounding device to hose 1. 5.4 Safety requirements for noise hazards | The noise limit of single-gun shot peening equipment that can automatically recycle projectiles under dry operation conditions is 85dB(A). The noise measurement method is in accordance with the provisions of JB/T6331.2. 5.4.2 Equipment should take measures to minimize the risk of noise radiation. 5.4.3 A silencer should be used for the exhaust hole of the air valve. 5.4.4 Pipes arranged side by side should not be in contact with each other to prevent noise and squealing. 5.5 Safety requirements for hazards arising from materials and substances. Equipment should be equipped with a ventilation and dust removal system or have an interface connected to the dust removal system during use. The ventilation volume of the equipment should be able to meet the requirements of dust removal 5.5.1
5.5.2 The ventilation and dust removal system should have measures to prevent dust removal pipes from being blocked. The bending transitions of the dust removal pipe should be minimized, and the connections (such as flanges) should be bridged.
5.5.3 There should be no dust leakage in various parts of the equipment when the dust collector is working. 5.5.4 In the T. operating state, the dust emission concentration into the atmosphere from the dust collector equipped with the equipment should be less than 150 mg/m. 5.5.5 When blasting flammable and explosive T-piece materials and projectile materials, the ventilation ducts and dust removal systems of equipment that is prone to produce flammable and explosive dust mixtures should be equipped with effective explosion-proof measures. These measures include 5.5 In addition to .1-5.5.4, it should also include: a) The electrical system of the equipment should be able to meet the requirements for fire protection and explosion protection (such as electric sparks, etc.); b) The shell and parts of the equipment should be directly grounded by static electricity. If it is inconvenient or the process does not allow direct grounding, it can be grounded indirectly through electrostatic materials or products. The direct grounding resistance of static electricity should not be greater than 100Ω, and the indirect grounding resistance should not be greater than 10°0; c) Pipes transporting dust should be made of metal or anti-static materials. Manufacturing; d) Operators in the equipment should take anti-static measures: e) Bearings in the equipment should be sealed and dust-proof:
1) It is prohibited to use directly grounded metal conductors or screens to come into contact with high-speed flowing dust Method to eliminate static electricity; 6
JB10144-1999
g) Sparks generated by friction between aluminum, magnesium, iron-titanium and other metal dust and corroded steel are particularly dangerous ignition sources. When the above-mentioned metal or alloy dust is present, friction sparks should be prevented; h) The equipment should be equipped with explosion vents, and the explosion release pressure should be fast enough to ensure that the equipment structure is not damaged. The Leli release action itself should not cause danger to the operator
5.6 Others
The correct repair or maintenance of the equipment is crucial to the operator's safety. It should be emphasized in the instruction manual: a) Before placing any part of the operator's body in the danger zone, the equipment should be placed in zero mechanical state: b) The shot blasting hose should be checked frequently for loose spots and leaks. . Defective hoses should be repaired or replaced: c) When the inner diameter of the spray gun nozzle is worn to 1.17 times the inner diameter of the nozzle before use of the spray gun, a new nozzle should be replaced; d. The metal pipe and its accessories of the shot supply system should be inspected frequently. To prevent excessive wear. Defective pipes and joint accessories should be repaired or replaced;
e) Broken or severely damaged or corroded protective plates, impellers, directional sleeves, shot splitting wheels and their fasteners should be repaired or replaced. Replace and conduct regular inspections:
f) All seals that prevent projectiles from flying out should be replaced if found to be defective; g) The workpiece carrier or all mechanisms supporting the load should be replaced if found to be defective: h ) Projectiles and dust scattered on the ground and equipment should be cleaned up to prevent danger: 1) The hooks and spreaders used should be regularly inspected in accordance with relevant regulations: j) Lubrication points should be lubricated regularly ||tt| |6 Determination of safety requirements and/or measures
Whether the equipment complies with the safety requirements and/or measures in Chapter 5 should be determined according to the following four methods. According to the nature of the safety requirements and/or measures, the determination methods should follow the following priority order. When the former method cannot be implemented or cannot be determined, the latter method is allowed to be determined, and the same safety requirements and/or measures are carried out in order. At least one method must be used to determine. When a certain safety requirement or measure can be determined by multiple methods, the results of the various methods should be consistent. 6.1 Judgment method 1 - functional test
Check whether the function of the equipment meets the requirements through the safety function test. If the safety function test cannot be realized objectively due to technical reasons, or only destructive testing can be used, or reducing the risk to the required level will result in excessive costs, etc., then the methods given in 6.2, 6.3 and 6.4 shall be followed.
6.2 Judgment method 2-Testing
With the help of testing instruments and meters, give priority to existing and standardized measurement methods to check whether the specified requirements are within the limits. If the measurement method is due to current technical limitations If the restrictions cannot prove whether the equipment meets the requirements, or the safety requirements and/or measures are qualitative, etc., then the methods given in 6.3 and 6.4 | or drawings to analyze and check whether the equipment meets the requirements. This method is applicable to certain specific requirements (such as stability, center of gravity position, mechanical strength, etc.). If a clear conclusion cannot be drawn only through calculations and/or drawings, press The method given in 6.4. 6.4 Specific method 4 - Fog observation
Check whether the equipment meets the necessary requirements and performance through visual measurement of the specified parts.2 regulations. 5.4.2 Equipment should take measures to minimize the risk of noise radiation. 5.4.3 A silencer should be used for the exhaust hole of the air valve. 5.4.4 Pipes arranged side by side should not be in contact with each other to prevent noise and squealing. 5.5 Safety requirements for hazards arising from materials and substances. Equipment should be equipped with a ventilation and dust removal system or have an interface connected to the dust removal system during use. The ventilation volume of the equipment should be able to meet the requirements of dust removal 5.5.1
5.5.2 The ventilation and dust removal system should have measures to prevent dust removal pipes from being blocked. The bending transitions of the dust removal pipe should be minimized, and the connections (such as flanges) should be bridged.
5.5.3 There should be no dust leakage from various parts of the equipment when the dust collector is working. 5.5.4 In the T. operating state, the dust emission concentration into the atmosphere from the dust collector equipped with the equipment should be less than 150 mg/m. 5.5.5 When blasting flammable and explosive T-piece materials and projectile materials, the ventilation ducts and dust removal systems of equipment that is prone to produce flammable and explosive dust mixtures should be equipped with effective explosion-proof measures. These measures include, in addition to 5.5 In addition to .1-5.5.4, it should also include: a) The electrical system of the equipment should be able to meet the requirements for fire protection and explosion protection (such as electric sparks, etc.); b) The shell and parts of the equipment should be directly grounded by static electricity. If it is inconvenient or the process does not allow direct grounding, it can be grounded indirectly through electrostatic materials or products. The direct grounding resistance of static electricity should not be greater than 100Ω, and the indirect grounding resistance should not be greater than 10°0; c) Pipes transporting dust should be made of metal or anti-static materials. Manufacturing; d) Operators in the equipment should take anti-static measures: e) Bearings in the equipment should be sealed and dust-proof:
1) It is prohibited to use directly grounded metal conductors or screens to come into contact with high-speed flowing dust Method to eliminate static electricity; 6
JB10144-1999
g) Sparks generated by friction between aluminum, magnesium, iron-titanium and other metal dust and corroded steel are particularly dangerous ignition sources. When the above-mentioned metal or alloy dust is present, friction sparks should be prevented; h) The equipment should be equipped with explosion vents, and the explosion release pressure should be fast enough to ensure that the equipment structure is not damaged. The Leli release action itself should not cause danger to the operator
5.6 Others
The correct repair or maintenance of the equipment is crucial to the operator's safety. It should be emphasized in the instruction manual: a) Before placing any part of the operator's body in the danger zone, the equipment should be placed in zero mechanical state: b) The shot blasting hose should be checked frequently for loose spots and leaks. . Defective hoses should be repaired or replaced: c) When the inner diameter of the spray gun nozzle is worn to 1.17 times the inner diameter of the nozzle before use of the spray gun, a new nozzle should be replaced; d. The metal pipe and its accessories of the shot supply system should be inspected frequently. To prevent excessive wear. Defective pipes and joint accessories should be repaired or replaced;
e) Broken or severely damaged or corroded protective plates, impellers, directional sleeves, shot splitting wheels and their fasteners should be repaired or replaced. Replace and conduct regular inspections:
f) All seals that prevent projectiles from flying out should be replaced if found to be defective; g) The workpiece carrier or all mechanisms supporting the load should be replaced if found to be defective: h ) Projectiles and dust scattered on the ground and equipment should be cleaned up to prevent danger: 1) The hooks and spreaders used should be regularly inspected in accordance with relevant regulations: j) Lubrication points should be lubricated regularly ||tt| |6 Determination of safety requirements and/or measures
Whether the equipment complies with the safety requirements and/or measures in Chapter 5 should be determined according to the following four methods. According to the nature of the safety requirements and/or measures, the determination methods should follow the following priority order. When the former method cannot be implemented or cannot be determined, the latter method is allowed to be determined, and the same safety requirements and/or measures are carried out in order. At least one method must be used to determine. When a certain safety requirement or measure can be determined by multiple methods, the results of the various methods should be consistent. 6.1 Judgment method 1 - functional test
Check whether the function of the equipment meets the requirements through the safety function test. If the safety function test cannot be realized objectively due to technical reasons, or only destructive testing can be used, or reducing the risk to the required level will result in excessive costs, etc., then the methods given in 6.2, 6.3 and 6.4 shall be followed.
6.2 Judgment method 2-Testing
With the help of testing instruments and meters, give priority to existing and standardized measurement methods to check whether the specified requirements are within the limits. If the measurement method is due to current technical limitations If the restrictions cannot prove whether the equipment meets the requirements, or the safety requirements and/or measures are qualitative, etc., then the methods given in 6.3 and 6.4 | or drawings to analyze and check whether the equipment meets the requirements. This method is applicable to certain specific requirements (such as stability, center of gravity position, mechanical strength, etc.). If a clear conclusion cannot be drawn only through calculations and/or drawings, press The method given in 6.4. 6.4 Specific method 4 - Fog observation
Check whether the equipment meets the necessary requirements and performance through visual measurement of the specified parts.2 regulations. 5.4.2 Equipment should take measures to minimize the risk of noise radiation. 5.4.3 A silencer should be used for the exhaust hole of the air valve. 5.4.4 Pipes arranged side by side should not be in contact with each other to prevent noise and squealing. 5.5 Safety requirements for hazards arising from materials and substances. Equipment should be equipped with a ventilation and dust removal system or have an interface connected to the dust removal system during use. The ventilation volume of the equipment should be able to meet the requirements of dust removal 5.5.1
5.5.2 The ventilation and dust removal system should have measures to prevent dust removal pipes from being blocked. The bending transitions of the dust removal pipe should be minimized, and the connections (such as flanges) should be bridged.
5.5.3 There should be no dust leakage from various parts of the equipment when the dust collector is working. 5.5.4 In the T. operating state, the dust emission concentration into the atmosphere from the dust collector equipped with the equipment should be less than 150 mg/m. 5.5.5 When blasting flammable and explosive T-piece materials and projectile materials, the ventilation ducts and dust removal systems of equipment that is prone to produce flammable and explosive dust mixtures should be equipped with effective explosion-proof measures. These measures include 5.5 In addition to .1-5.5.4, it should also include: a) The electrical system of the equipment should be able to meet the requirements for fire protection and explosion protection (such as electric sparks, etc.); b) The shell and parts of the equipment should be directly grounded by static electricity. If it is inconvenient or the process does not allow direct grounding, it can be grounded indirectly through electrostatic materials or products. The direct grounding resistance of static electricity should not be greater than 100Ω, and the indirect grounding resistance should not be greater than 10°0; c) Pipes transporting dust should be made of metal or anti-static materials. Manufacturing; d) Operators in the equipment should take anti-static measures: e) Bearings in the equipment should be sealed and dust-proof:
1) It is prohibited to use directly grounded metal conductors or screens to come into contact with high-speed flowing dust Method to eliminate static electricity; 6
JB10144-1999
g) Sparks generated by friction between aluminum, magnesium, iron-titanium and other metal dust and corroded steel are particularly dangerous ignition sources. When the above-mentioned metal or alloy dust is present, friction sparks should be prevented; h) The equipment should be equipped with explosion vents, and the explosion release pressure should be fast enough to ensure that the equipment structure is not damaged. The Leli release action itself should not cause danger to the operator
5.6 Others
The correct repair or maintenance of the equipment is crucial to the operator's safety. It should be emphasized in the instruction manual: a) Before placing any part of the operator's body in the danger zone, the equipment should be placed in zero mechanical state: b) The shot blasting hose should be checked frequently for loose spots and leaks. . Defective hoses should be repaired or replaced: c) When the inner diameter of the spray gun nozzle is worn to 1.17 times the inner diameter of the nozzle before use of the spray gun, a new nozzle should be replaced; d. The metal pipe and its accessories of the shot supply system should be inspected frequently. To prevent excessive wear. Defective pipes and joint accessories should be repaired or replaced;
e) Broken or severely damaged or corroded protective plates, impellers, directional sleeves, shot splitting wheels and their fasteners should be repaired or replaced. Replace and conduct regular inspections:
f) All seals that prevent projectiles from flying out should be replaced if found to be defective; g) The workpiece carrier or all mechanisms supporting the load should be replaced if found to be defective: h ) Projectiles and dust scattered on the ground and equipment should be cleaned up to prevent danger: 1) The hooks and spreaders used should be regularly inspected in accordance with relevant regulations: j) Lubrication points should be lubricated regularly ||tt| |6 Determination of safety requirements and/or measures
Whether the equipment complies with the safety requirements and/or measures in Chapter 5 should be determined according to the following four methods. According to the nature of the safety requirements and/or measures, the determination methods should follow the following priority order. When the former method cannot be implemented or cannot be determined, the latter method is allowed to be determined, and the same safety requirements and/or measures are carried out in order. At least one method must be used to determine. When a certain safety requirement or measure can be determined by multiple methods, the results of the various methods should be consistent. 6.1 Judgment method 1 - functional test
Check whether the function of the equipment meets the requirements through the safety function test. If the safety function test cannot be realized objectively due to technical reasons, or only destructive testing can be used, or reducing the risk to the required level will result in excessive costs, etc., then the methods given in 6.2, 6.3 and 6.4 shall be followed.
6.2 Judgment method 2-Testing
With the help of testing instruments and meters, give priority to existing and standardized measurement methods to check whether the specified requirements are within the limits. If the measurement method is due to current technical limitations If the restrictions cannot prove whether the equipment meets the requirements, or the safety requirements and/or measures are qualitative, etc., then the methods given in 6.3 and 6.4 | or drawings to analyze and check whether the equipment meets the requirements. This method is applicable to certain specific requirements (such as stability, center of gravity position, mechanical strength, etc.). If a clear conclusion cannot be drawn only through calculations and/or drawings, press The method given in 6.4. 6.4 Specific method 4 - Fog observation
Check whether the equipment meets the necessary requirements and performance through visual measurement of the specified parts.1 Judgment method 1 - functional test
Check whether the function of the equipment meets the requirements through the safety function test. If the safety function test cannot be realized objectively due to technical reasons, or only destructive testing can be used, or reducing the risk to the required level will result in excessive costs, etc., then the methods given in 6.2, 6.3 and 6.4 shall be followed.
6.2 Judgment method 2-Testing
With the help of testing instruments and meters, give priority to existing and standardized measurement methods to check whether the specified requirements are within the limits. If the measurement method is due to current technical limitations If the restrictions cannot prove whether the equipment meets the requirements, or the safety requirements and/or measures are qualitative, etc., then the methods given in 6.3 and 6.4 | or drawings to analyze and check whether the equipment meets the requirements. This method is applicable to certain specific requirements (such as stability, center of gravity position, mechanical strength, etc.). If a clear conclusion cannot be drawn only through calculations and/or drawings, press The method given in 6.4. 6.4 Specific method 4 - Fog observation
Check whether the equipment meets the necessary requirements and performance through visual measurement of the specified parts.1 Judgment method 1 - functional test
Check whether the function of the equipment meets the requirements through the safety function test. If the safety function test cannot be realized objectively due to technical reasons, or only destructive testing can be used, or reducing the risk to the required level will result in excessive costs, etc., then the methods given in 6.2, 6.3 and 6.4 shall be followed.
6.2 Judgment method 2-Testing
With the help of testing instruments and meters, give priority to existing and standardized measurement methods to check whether the specified requirements are within the limits. If the measurement method is due to current technical limitations If the restrictions cannot prove whether the equipment meets the requirements, or the safety requirements and/or measures are qualitative, etc., then the methods given in 6.3 and 6.4 | or drawings to analyze and check whether the equipment meets the requirements. This method is applicable to certain specific requirements (such as stability, center of gravity position, mechanical strength, etc.). If a clear conclusion cannot be drawn only through calculations and/or drawings, press The method given in 6.4. 6.4 Specific method 4 - Fog observation
Check whether the equipment meets the necessary requirements and performance through visual measurement of the specified parts.
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