GB 50270-1998 Specification for construction and acceptance of continuous conveying equipment installation projects
Some standard content:
Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
GB50270—98
Code for construction and acceptance ofcontinuous conveyer euipmentinstallation engineering
1998-08-27
1998-12-01
State Bureau of Technical Supervision
Ministry of Construction of the People's Republic of China
Engineering Construction Standard Full-text Information System
Jointly Issued
Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Continuous Conveyor Equipment Installation Engineering
Construction and Acceptance Code
Code for construction and acceptance ofcontinuous conveyer equipmentinstallationengineering
GB50270—98
Editor department: Former Ministry of Machinery Industry of the People's Republic of ChinaApproval department: Ministry of Construction of the People's Republic of ChinaEffective date: December 1, 1998
Engineering construction standard full text information system
Engineering construction standard full text information system
Notice on the release of ten national standards including "General Specification for Construction and Acceptance of Mechanical Equipment Installation Engineering"Jianbiao [1998] No. 9
According to the requirements of the State Planning Commission's Document No. Jizong [1986] 2630 and Document No. Jizong [1987] 2390, ten standards including "General Specification for Construction and Acceptance of Mechanical Equipment Installation Engineering" jointly revised by the former Ministry of Machinery Industry and relevant departments have been reviewed by relevant departments. The following standards are now approved as mandatory national standards and will be implemented from December 1, 1998. The original national standards "Construction and Acceptance Specifications for Mechanical Equipment Installation Projects" TJ231 and "Construction and Acceptance Specifications for Refrigeration Equipment Installation Projects" GBJ66-84 are abolished at the same time. "General Specifications for Construction and Acceptance of Mechanical Equipment Installation Projects" GB50231-98 "Construction and Acceptance Specifications for Continuous Conveying Equipment Installation Projects" GB50270-98 "Construction and Acceptance Specifications for Metal Cutting Machine Tool Installation Projects" GB50271-98 "Construction and Acceptance Specifications for Forging Equipment Installation Projects" GB50272-98 "Construction and Acceptance Specifications for Industrial Boiler Installation Projects" GB50273-98 "Construction and Acceptance Specifications for Refrigeration Equipment and Air Separation Equipment Installation Projects" GB50274-98||tt ||《Compressor, fan, pump installation project construction and acceptance specification》GB50275-98《Crushing, grinding equipment installation project construction and acceptance specification》GB50276-98《Casting equipment installation project construction and acceptance specification》GB50277-98《Lifting equipment installation project construction and acceptance specification》GB50278-98The above specifications are managed by the State Machinery Industry Bureau, and the specific interpretation and other work is the responsibility of the Installation Engineering Standard Quota Station of the Ministry of Machinery Industry, and the publication and distribution is organized by the Standard Quota Research Institute of the Ministry of Construction.
Ministry of Construction of the People's Republic of China
August 27, 1998
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Revision Notes
This specification is edited by the former Ministry of Machinery Industry in accordance with the requirements of the State Planning Commission's Document No. 450 (1986), and is specifically compiled by the Installation Engineering Standard Quota Station of the Ministry of Machinery Industry in conjunction with relevant units.
During the revision process, the revision group conducted extensive investigations and studies, carefully summarized the experience since the implementation of the original specification; absorbed some scientific research results in the continuous conveying equipment manufacturing industry and new technologies, new materials and new processes in the continuous conveying equipment installation project; widely solicited opinions from relevant units across the country, and finally the Ministry reviewed and finalized it together with relevant departments.
This specification is divided into fourteen chapters and three appendices. The main contents of the revision are as follows: 1. According to the development of my country's continuous conveying equipment manufacturing industry, many new varieties have been added, backward models have been eliminated, and the scope of application and coverage of this specification have been expanded. For example, the installation project of aerial ropeways has been expanded from a single freight ropeway to the installation of single and double-line circulating freight ropeways and single-line circulating and double-line reciprocating passenger ropeways. 2. The original specification was revised in the 1970s. Due to objective reasons, standardization is still extremely imperfect. Now most of the continuous conveying equipment manufacturing standards adopt international advanced standards and equivalent standards of foreign advanced technologies. Therefore, this specification has been greatly revised in terms of inspection items, technical requirements and parameters.
3. The steps, procedures and technical requirements for the load test run of the installation project of continuous conveying equipment have been added. The quality of the installation project has been improved, and the safety and reliability of the continuous conveying equipment in production and use have been greatly improved. 4. In terms of nouns, terminology, shape and position tolerances, and measurement units, major revisions have been made in accordance with the current national standards.
If any imperfections are found in the implementation of this specification, please send your opinions and relevant materials to the Revision Group of the "Continuous Conveying Equipment Installation Project Construction and Acceptance Specifications" of the Installation Engineering Standard Quota Station of the Ministry of Machinery Industry (Address: No. 277 Wangfujing Street, Beijing, Postal Code: 100740) for reference in future revisions. Former Ministry of Machinery Industry
August 1998
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
General Provisions.
Fixed Belt Conveyor
Apron Conveyor
Vertical Bucket Elevator
Screw Conveyor·
Roller Conveyor
Suspension Conveyor
Vibrating Conveyor
Buried Scraper Conveyor
Chapter 11
Chapter 12
Section 1
|Pneumatic conveying equipment
Aerial ropeway
General requirements
Steel structures and line equipment
Section 2
Section 3
Wire rope
Section 4
Section 5
Chapter 13
Section 1
Section 2
Section 3
Section 4
Section 5| |tt||Chapter 14
Station Equipment
Trial Operation
Mine Hoist and Winches
General Requirements
Wrap-around Mine Hoist and Mine Hoist Winches Multi-rope Hoist
Other Winches
Trial Operation
Project Acceptance
Engineering Construction Standard Full Text Information System
·(19)
* (24)
（27)
（28)
. (41)
·（44)
（44)
（53）
（53)
Engineering Construction Standard Full Text Information System
Appendix 1. Allowable deviation requirements for the size and position of station buildings, foundations, embedded parts and embedded bolts of continuous conveying equipment
（59）
Belt conveyor belt connection method
Appendix 2
Appendix 3 Explanation of terms used in this specification
Additional instructions (65)
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Chapter 1 General
Article 1.0.1 This specification is formulated to ensure the construction quality of continuous conveying equipment installation projects, promote the advancement of installation technology and ensure the safe operation of equipment. Article 1.0.2 This specification applies to the construction and acceptance of installation projects of general fixed belt conveyors, plate conveyors, vertical bucket elevators, screw conveyors, roller conveyors, suspended conveyors, vibrating conveyors, buried scraper conveyors, pneumatic conveying equipment, aerial ropeways, mine hoists and winches. Article 1.0.3 This specification is a professional technical regulation for the installation of continuous conveying equipment. Its general technical requirements shall comply with the provisions of the current national standard "General Specifications for Construction and Acceptance of Mechanical Equipment Installation Projects".
Article 1.0.4 Continuous conveying equipment must be put into production and use only after passing the trial operation.
Article 1.0.Article 5
The construction and acceptance of the installation project of continuous conveying equipment shall not only comply with the provisions of this specification, but also comply with the relevant provisions of the current national standards and specifications. Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
General Provisions
Chapter II
Article 2.0.1 The inspection before the construction of the installation project of continuous conveying equipment shall meet the following requirements:
1. The design and equipment technical documents shall be complete; 2. According to the equipment packing list, check the model, specification and quantity of the equipment and materials, which shall meet the requirements of the design and product standards, and shall have a product certificate; 3. The electromechanical equipment shall be free of deformation, damage and rust: the packaging shall be good: the wire rope shall not be rusted, damaged, bent, looped, kinked, cracked or loose; 4. The steel structure components shall have the prescribed weld inspection records and pre-installation inspection records and other quality certification documents;
5. The allowable deviation of the size and position of the station building, foundation, pre-prepared parts and pre-prepared bolts shall comply with the provisions of Appendix 1 of this specification in addition to the relevant provisions of the current national standard "General Specifications for Construction and Acceptance of Mechanical Equipment Installation Projects". Article 2.0.2 Before the equipment is in place, the longitudinal and transverse center lines and benchmark elevation points of the main continuous conveying equipment shall be determined according to the construction drawings and the measured data of the relevant foundations and supporting building structures as the basis for equipment installation. Article 2.0.3 The laying of tracks shall meet the following requirements: 1. Before laying the rails, the straightness shall be checked according to their manufacturing standards. Twist and end surface quality shall be checked only after they meet the standards;
2. The fasteners such as the pressure plates and bolts used to fix the rails shall be installed in the correct position, and shall fit closely with the rails and be effectively locked; 3. The center line of the track shall coincide with the longitudinal center line of the conveyor, and the deviation shall not be greater than 2mm;
4. The joint positions of the two parallel rails should be staggered, and the staggered distance shall not be equal to the distance between the front and rear wheels of the walking part; Engineering Construction Standards Full-text Information System
Engineering Construction Standards Full-text Information System
5. The joint gap of the track should not be greater than 2mm, the height difference of the working surface at the joint should not be greater than 0.5mm, and the left and right offset should not be greater than 1mm; 6. The allowable deviation of the track gauge is ±2mm;
7. The track straightness deviation should not be greater than 2mm per meter, should not be greater than 5mm within a length of 25m, and should not be greater than 15mm for the entire length;
8. The relative elevation allowable deviation of the tops of two parallel tracks in the same section shall comply with the provisions of Table 2.0.3, and the deviation direction of the curved part of the track shall decrease toward the center of curvature.
Allowable deviation
Allowable deviation of relative elevation of rail top (mm)
Article 2.0.4 The assembly of drive sprocket and tension sprocket shall meet the following requirements: 1. The transverse center line of the sprocket shall coincide with the longitudinal center line of the conveyor, and the deviation shall not be greater than 2mm;
2. The axes of the two sprockets shall be parallel, and the deviation of perpendicularity with the longitudinal center line of the conveyor shall not be greater than 1/1000;
3. The installation horizontal deviation of the sprocket shaft shall not be greater than 0.5/1000. Article 2.0.5 The assembled crawler drive device shall meet the following requirements: 1. The transverse center line of the two sprockets shall coincide with the longitudinal center line of the conveyor, and the deviation shall not be greater than 1mm. 2. The allowable deviation of the distance from the sprocket axis to the track surface is ±1mm; 3. The verticality deviation of the sprocket axis to the longitudinal center of the conveyor shall not be greater than 1/1000; 4. The installation horizontal deviation of the sprocket shaft shall not be greater than 0.3/1000; 5. The allowable deviation of the track gauge of the two crawler tracks is ±2mm; 6. The longitudinal inclination deviation of the crawler track shall not be greater than 1/1000; 7. The height difference of the working surfaces of the two crawler tracks shall not be greater than 1mm; 8. The center line of the two crawler tracks shall coincide with the transverse center line of the two sprockets, and the deviation shall not be greater than 1mm.
Article 2.0.6 After the rollers, wheels and rollers are assembled, they should rotate flexibly. Article 2.0.7
The inspection before the trial operation of the continuous conveying equipment shall meet the following requirements:
1. The brand and quantity of oil and grease in each lubrication point and reducer shall comply with the provisions of the equipment technical documents;
2. There should be no obstacles affecting the trial operation along the conveying line and channel of the continuous conveying equipment;
3. All fasteners should not be loose; 4. The electrical system, safety interlocking device, braking device, operation control coefficient and signal system should be checked by simulation or operation, and their working performance should be sensitive, correct and reliable; 5. Turn each moving mechanism to make the input and output shafts of the transmission system rotate one circle, and there should be no jamming; the rotation direction of the motor should be consistent with the running direction of the conveyor. Article 2.0.8 In addition to the provisions of the current national standard "General Specifications for Construction and Acceptance of Mechanical Equipment Installation Engineering", the trial operation of the continuous conveying equipment shall also comply with the provisions of this specification. The test run should be carried out from components to assemblies, from assemblies to single machines, and from single machines to the entire conveyor line, and should be carried out manually first and then mechanically, from low speed to high speed, and from no-load to rated load step by step.
Article 2.0.9 The no-load test run should meet the following requirements: 1. The operation of the drive device should be smooth;
2. The sprocket and chain of the chain drive should be well meshed, run smoothly, and there should be no jamming;
3. All rollers and running wheels should have good contact on the track and run smoothly; 4. There should be no friction and impact between the moving parts and the housing; 5. The oil temperature of the reducer and the temperature rise of the bearings should not exceed the provisions of the equipment technical documents, and the lubrication and sealing should be good.
6. The time of the no-load test run should not be less than 1h, and should not be less than 2 cycles; for variable-speed continuous conveying equipment, the highest speed no-load test run time should not be less than 60% of the total test run time.
Engineering 4 Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Load test run shall meet the following requirements:
Article 2.0.10
1. Load test run can be carried out only after the no-load test run is qualified; 2. When several conveyors are operated together, the equipment shall be started in the order of the opposite direction of material conveying;
3. The load shall be gradually increased according to the procedures and methods specified in the equipment technical documents until the rated load is reached; the continuous operation time under rated load shall not be less than 1h, and should not be less than one working cycle;
4. The operation of each moving part should be smooth, without shaking and abnormal phenomena; 5. The lubricating oil temperature and bearing temperature should not exceed the requirements of the equipment technical documents; 6. The safety interlock protection device and the operation and control system should be sensitive, correct and reliable;
7. The conveying volume should meet the design requirements;
8. Before stopping, the feeding should be stopped first, and the conveyor can only be stopped after no material is discharged from the discharge port; when several conveyors are running together, the parking order should be opposite to the starting order.
Engineering Construction Standard Full Text Information System3. The laying of tracks shall meet the following requirements: 1. Before laying the rails, the straightness, distortion and end surface quality shall be checked according to the manufacturing standards. Only after they are qualified can they be laid;
2. The installation position of the clamps, bolts and other fasteners used to fix the rails shall be correct, and they shall fit closely with the rails and be locked firmly; 3. The center line of the track shall coincide with the longitudinal center line of the conveyor, and the deviation shall not be greater than 2mm;
4. The joint positions of the two parallel rails should be staggered, and the staggered distance shall not be equal to the distance between the front and rear wheels of the walking part; Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
5. The joint gap of the track should not be greater than 2mm, the height difference of the working surface at the joint should not be greater than 0.5mm, and the left and right offset should not be greater than 1mm; 6. The allowable deviation of the track gauge is ±2mm;
7. The track straightness deviation should not be greater than 2mm per meter, should not be greater than 5mm within a length of 25m, and should not be greater than 15mm for the entire length;
8. The relative elevation allowable deviation of the tops of two parallel tracks in the same section shall comply with the provisions of Table 2.0.3, and the deviation direction of the curved part of the track shall decrease toward the center of curvature.
Allowable deviation
Allowable deviation of relative elevation of rail top (mm)
Article 2.0.4 The assembly of drive sprocket and tension sprocket shall meet the following requirements: 1. The transverse center line of the sprocket shall coincide with the longitudinal center line of the conveyor, and the deviation shall not be greater than 2mm;
2. The axes of the two sprockets shall be parallel, and the deviation of perpendicularity with the longitudinal center line of the conveyor shall not be greater than 1/1000;
3. The installation horizontal deviation of the sprocket shaft shall not be greater than 0.5/1000. Article 2.0.5 The assembled crawler drive device shall meet the following requirements: 1. The transverse center line of the two sprockets shall coincide with the longitudinal center line of the conveyor, and the deviation shall not be greater than 1mm. 2. The allowable deviation of the distance from the sprocket axis to the track surface is ±1mm; 3. The verticality deviation of the sprocket axis to the longitudinal center of the conveyor shall not be greater than 1/1000; 4. The installation horizontal deviation of the sprocket shaft shall not be greater than 0.3/1000; 5. The allowable deviation of the track gauge of the two crawler tracks is ±2mm; 6. The longitudinal inclination deviation of the crawler track shall not be greater than 1/1000; 7. The height difference of the working surfaces of the two crawler tracks shall not be greater than 1mm; 8. The center line of the two crawler tracks shall coincide with the transverse center line of the two sprockets, and the deviation shall not be greater than 1mm.
Article 2.0.6 After the rollers, wheels and rollers are assembled, they should rotate flexibly. Article 2.0.7
The inspection before the trial operation of the continuous conveying equipment shall meet the following requirements:
1. The brand and quantity of oil and grease in each lubrication point and reducer shall comply with the provisions of the equipment technical documents;
2. There should be no obstacles affecting the trial operation along the conveying line and channel of the continuous conveying equipment;
3. All fasteners should not be loose; 4. The electrical system, safety interlocking device, braking device, operation control coefficient and signal system should be checked by simulation or operation, and their working performance should be sensitive, correct and reliable; 5. Turn each moving mechanism to make the input and output shafts of the transmission system rotate one circle, and there should be no jamming; the rotation direction of the motor should be consistent with the running direction of the conveyor. Article 2.0.8 In addition to the provisions of the current national standard "General Specifications for Construction and Acceptance of Mechanical Equipment Installation Engineering", the trial operation of the continuous conveying equipment shall also comply with the provisions of this specification. The test run should be carried out from components to assemblies, from assemblies to single machines, and from single machines to the entire conveyor line, and should be carried out manually first and then mechanically, from low speed to high speed, and from no-load to rated load step by step.
Article 2.0.9 The no-load test run should meet the following requirements: 1. The operation of the drive device should be smooth;
2. The sprocket and chain of the chain drive should be well meshed, run smoothly, and there should be no jamming;
3. All rollers and running wheels should have good contact on the track and run smoothly; 4. There should be no friction and impact between the moving parts and the housing; 5. The oil temperature of the reducer and the temperature rise of the bearings should not exceed the provisions of the equipment technical documents, and the lubrication and sealing should be good.
6. The time of the no-load test run should not be less than 1h, and should not be less than 2 cycles; for variable-speed continuous conveying equipment, the highest speed no-load test run time should not be less than 60% of the total test run time.
Engineering 4 Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Load test run shall meet the following requirements:
Article 2.0.10
1. Load test run can be carried out only after the no-load test run is qualified; 2. When several conveyors are operated together, the equipment shall be started in the order of the opposite direction of material conveying;
3. The load shall be gradually increased according to the procedures and methods specified in the equipment technical documents until the rated load is reached; the continuous operation time under rated load shall not be less than 1h, and should not be less than one working cycle;
4. The operation of each moving part should be smooth, without shaking and abnormal phenomena; 5. The lubricating oil temperature and bearing temperature should not exceed the requirements of the equipment technical documents; 6. The safety interlock protection device and the operation and control system should be sensitive, correct and reliable;
7. The conveying volume should meet the design requirements;
8. Before stopping, the feeding should be stopped first, and the conveyor can only be stopped after no material is discharged from the discharge port; when several conveyors are running together, the parking order should be opposite to the starting order.
Engineering Construction Standard Full Text Information System3. The laying of tracks shall meet the following requirements: 1. Before laying the rails, the straightness, distortion and end surface quality shall be checked according to the manufacturing standards. Only after they are qualified can they be laid;
2. The installation position of the clamps, bolts and other fasteners used to fix the rails shall be correct, and they shall fit closely with the rails and be locked firmly; 3. The center line of the track shall coincide with the longitudinal center line of the conveyor, and the deviation shall not be greater than 2mm;
4. The joint positions of the two parallel rails should be staggered, and the staggered distance shall not be equal to the distance between the front and rear wheels of the walking part; Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
5. The joint gap of the track should not be greater than 2mm, the height difference of the working surface at the joint should not be greater than 0.5mm, and the left and right offset should not be greater than 1mm; 6. The allowable deviation of the track gauge is ±2mm;
7. The track straightness deviation should not be greater than 2mm per meter, should not be greater than 5mm within a length of 25m, and should not be greater than 15mm for the entire length;
8. The relative elevation allowable deviation of the tops of two parallel tracks in the same section shall comply with the provisions of Table 2.0.3, and the deviation direction of the curved part of the track shall decrease toward the center of curvature.
Allowable deviation
Allowable deviation of relative elevation of rail top (mm)
Article 2.0.4 The assembly of drive sprocket and tension sprocket shall meet the following requirements: 1. The transverse center line of the sprocket shall coincide with the longitudinal center line of the conveyor, and the deviation shall not be greater than 2mm;
2. The axes of the two sprockets shall be parallel, and the deviation of perpendicularity with the longitudinal center line of the conveyor shall not be greater than 1/1000;
3. The installation horizontal deviation of the sprocket shaft shall not be greater than 0.5/1000. Article 2.0.5 The assembled crawler drive device shall meet the following requirements: 1. The transverse center line of the two sprockets shall coincide with the longitudinal center line of the conveyor, and the deviation shall not be greater than 1mm. 2. The allowable deviation of the distance from the sprocket axis to the track surface is ±1mm; 3. The verticality deviation of the sprocket axis to the longitudinal center of the conveyor shall not be greater than 1/1000; 4. The installation horizontal deviation of the sprocket shaft shall not be greater than 0.3/1000; 5. The allowable deviation of the track gauge of the two crawler tracks is ±2mm; 6. The longitudinal inclination deviation of the crawler track shall not be greater than 1/1000; 7. The height difference of the working surfaces of the two crawler tracks shall not be greater than 1mm; 8. The center line of the two crawler tracks shall coincide with the transverse center line of the two sprockets, and the deviation shall not be greater than 1mm.
Article 2.0.6 After the rollers, wheels and rollers are assembled, they should rotate flexibly. Article 2.0.7
The inspection before the trial operation of the continuous conveying equipment shall meet the following requirements:
1. The brand and quantity of oil and grease in each lubrication point and reducer shall comply with the provisions of the equipment technical documents;
2. There should be no obstacles affecting the trial operation along the conveying line and channel of the continuous conveying equipment;
3. All fasteners should not be loose; 4. The electrical system, safety interlocking device, braking device, operation control coefficient and signal system should be checked by simulation or operation, and their working performance should be sensitive, correct and reliable; 5. Turn each moving mechanism to make the input and output shafts of the transmission system rotate one circle, and there should be no jamming; the rotation direction of the motor should be consistent with the running direction of the conveyor. Article 2.0.8 In addition to the provisions of the current national standard "General Specifications for Construction and Acceptance of Mechanical Equipment Installation Engineering", the trial operation of the continuous conveying equipment shall also comply with the provisions of this specification. The test run should be carried out from components to assemblies, from assemblies to single machines, and from single machines to the entire conveyor line, and should be carried out manually first and then mechanically, from low speed to high speed, and from no-load to rated load step by step.
Article 2.0.9 The no-load test run should meet the following requirements: 1. The operation of the drive device should be smooth;
2. The sprocket and chain of the chain drive should be well meshed, run smoothly, and there should be no jamming;
3. All rollers and running wheels should have good contact on the track and run smoothly; 4. There should be no friction and impact between the moving parts and the housing; 5. The oil temperature of the reducer and the temperature rise of the bearings should not exceed the provisions of the equipment technical documents, and the lubrication and sealing should be good.
6. The time of the no-load test run should not be less than 1h, and should not be less than 2 cycles; for variable-speed continuous conveying equipment, the highest speed no-load test run time should not be less than 60% of the total test run time.
Engineering 4 Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Load test run shall meet the following requirements:
Article 2.0.10
1. Load test run can be carried out only after the no-load test run is qualified; 2. When several conveyors are operated together, the equipment shall be started in the order of the opposite direction of material conveying;
3. The load shall be gradually increased according to the procedures and methods specified in the equipment technical documents until the rated load is reached; the continuous operation time under rated load shall not be less than 1h, and should not be less than one working cycle;
4. The operation of each moving part should be smooth, without shaking and abnormal phenomena; 5. The lubricating oil temperature and bearing temperature should not exceed the requirements of the equipment technical documents; 6. The safety interlock protection device and the operation and control system should be sensitive, correct and reliable;
7. The conveying volume should meet the design requirements;
8. Before stopping, the feeding should be stopped first, and the conveyor can only be stopped after no material is discharged from the discharge port; when several conveyors are running together, the parking order should be opposite to the starting order.
Engineering Construction Standard Full Text Information System9. The no-load test run should meet the following requirements: 1. The operation of the drive device should be smooth; 2. The sprocket and chain of the chain drive should be well meshed, run smoothly, and there should be no jamming. 3. All rollers and running wheels should be in good contact on the track and run smoothly; 4. There should be no friction and impact between the moving parts and the housing; 5. The oil temperature of the reducer and the temperature rise of the bearing should not exceed the requirements of the equipment technical documents, and the lubrication and sealing should be good. 6. The time of the no-load test run should not be less than 1h, and should not be less than 2 cycles; for variable-speed continuous conveying equipment, the highest speed no-load test run time should not be less than 60% of the total test run time.
Engineering 4 Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Load test run shall meet the following requirements:
Article 2.0.10
1. Load test run can be carried out only after the no-load test run is qualified; 2. When several conveyors are operated together, the equipment shall be started in the order of the opposite direction of material conveying;
3. The load shall be gradually increased according to the procedures and methods specified in the equipment technical documents until the rated load is reached; the continuous operation time under rated load shall not be less than 1h, and should not be less than one working cycle;
4. The operation of each moving part should be smooth, without shaking and abnormal phenomena; 5. The lubricating oil temperature and bearing temperature should not exceed the requirements of the equipment technical documents; 6. The safety interlock protection device and the operation and control system should be sensitive, correct and reliable;
7. The conveying volume should meet the design requirements;
8. Before stopping, the feeding should be stopped first, and the conveyor can only be stopped after no material is discharged from the discharge port; when several conveyors are running together, the parking order should be opposite to the starting order. www.bzxz.net
Engineering Construction Standard Full Text Information System9. The no-load test run should meet the following requirements: 1. The operation of the drive device should be smooth; 2. The sprocket and chain of the chain drive should be well meshed, run smoothly, and there should be no jamming. 3. All rollers and running wheels should be in good contact on the track and run smoothly; 4. There should be no friction and impact between the moving parts and the housing; 5. The oil temperature of the reducer and the temperature rise of the bearing should not exceed the requirements of the equipment technical documents, and the lubrication and sealing should be good. 6. The time of the no-load test run should not be less than 1h, and should not be less than 2 cycles; for variable-speed continuous conveying equipment, the highest speed no-load test run time should not be less than 60% of the total test run time.
Engineering 4 Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Load test run shall meet the following requirements:
Article 2.0.10
1. Load test run can be carried out only after the no-load test run is qualified; 2. When several conveyors are operated together, the equipment shall be started in the order of the opposite direction of material conveying;
3. The load shall be gradually increased according to the procedures and methods specified in the equipment technical documents until the rated load is reached; the continuous operation time under rated load shall not be less than 1h, and should not be less than one working cycle;
4. The operation of each moving part should be smooth, without shaking and abnormal phenomena; 5. The lubricating oil temperature and bearing temperature should not exceed the requirements of the equipment technical documents; 6. The safety interlock protection device and the operation and control system should be sensitive, correct and reliable;
7. The conveying volume should meet the design requirements;
8. Before stopping, the feeding should be stopped first, and the conveyor can only be stopped after no material is discharged from the discharge port; when several conveyors are running together, the parking order should be opposite to the starting order.
Engineering Construction Standard Full Text Information System
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