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Management of mobile asphalt mixing plant
October 29th, 2021
asphalt mixing plant,mobile asphalt mixing plant,asphalt raw materials
For asphalt mixing plant, effective management is the key to ensure project progress and product quality. The management of mobile asphalt mixing plant involves equipment management, production scheduling, quality control of raw materials and finished products, safety production management and so on.
1. Equipment management
The abnormal operation of the equipment will directly lead to the interruption of the whole production process and affect the construction progress. Therefore, equipment management is the key work of mixing plant management. The key to good equipment management is to:
(1) Do a good job in lubrication management. Practical experience and theoretical research show that the physical wear of most mechanical equipment is caused by the lack of necessary lubrication. Therefore, it is necessary to formulate corresponding equipment maintenance plans, especially the lubrication of key parts, because in case of failure of key parts, it is relatively difficult to replace and repair. At the same time, the selection of lubricating grease should be scientific. Lithium grease with relatively low price should be selected for general bearings, while special grease resistant to high temperature and vibration should be selected for bearings at key parts such as vibrating screen motor.
(2) Formulate a scientific overhaul and maintenance plan, do a good job in preventive maintenance, and try to eliminate equipment management faults in the bud. Focus on regularly checking the condition of vulnerable parts such as slurry mixing, lining plate and screen, and reasonably arrange the replacement time according to their wear degree and production tasks.
(3) Do a good job in parts management.Mobile asphalt mixing plant is usually located far away from the urban center, so it is relatively difficult to buy accessories. In order to ensure that there are sufficient accessories for replacement in case of equipment failure, a certain spare parts reserve must be guaranteed. Especially for vulnerable parts such as slurry mixing, lining plate and screen, the production and delivery cycle is generally one month, and it is usually required to ensure more than 3 sets of inventory accessories.
Production scheduling includes raw material scheduling, production team scheduling, transportation team scheduling and coordination and communication with personnel on the asphalt paving construction site. One dispatcher shall be set for each shift of the mixing plant to formulate the material supply plan according to the requirements of the construction plan; Organize the transportation team to put into the production process to ensure that the transportation capacity meets the production requirements; For the mixing plant with more than two asphalt mixing plants, the production team and batch shall be reasonably arranged according to the type of asphalt mixture to be supplied.
3. Quality control of raw materials and finished products
The quality control of raw materials includes asphalt raw materials, various crushed stone aggregates, diesel oil, etc., which are jointly controlled by materialman and laboratory personnel. Sampling inspection shall be conducted for asphalt raw materials during feeding to inspect their softening point, penetration, ductility and other performance indexes. When the crushed stone is fed, the appearance inspection shall be carried out first to check its specification, needle and flake content and whether it is weathered, and the sample shall be sent to check its mud content and crushing value. The quality of finished materials shall be jointly controlled by the production team and laboratory personnel. The production team shall carry out production in strict accordance with the grading, conduct appearance inspection and temperature inspection on the finished materials, and the laboratory personnel shall sample the finished asphalt mixture for Marshall test.
4. Safety production management
In order to do a good job in the safety production management of the mixing plant and ensure that no safety accidents occur to mechanical equipment and personnel, effective preventive measures must be taken:
(1) Establish the safety responsibility system at all levels, implement and decompose the safety responsibility layer by layer, and link it with the economic assessment indicators.
(2) Formulate corresponding operating procedures, rules and regulations, require personnel at all levels to strictly abide by them, and carry out safety education regularly.
1. Equipment management
The abnormal operation of the equipment will directly lead to the interruption of the whole production process and affect the construction progress. Therefore, equipment management is the key work of mixing plant management. The key to good equipment management is to:
(1) Do a good job in lubrication management. Practical experience and theoretical research show that the physical wear of most mechanical equipment is caused by the lack of necessary lubrication. Therefore, it is necessary to formulate corresponding equipment maintenance plans, especially the lubrication of key parts, because in case of failure of key parts, it is relatively difficult to replace and repair. At the same time, the selection of lubricating grease should be scientific. Lithium grease with relatively low price should be selected for general bearings, while special grease resistant to high temperature and vibration should be selected for bearings at key parts such as vibrating screen motor.
(2) Formulate a scientific overhaul and maintenance plan, do a good job in preventive maintenance, and try to eliminate equipment management faults in the bud. Focus on regularly checking the condition of vulnerable parts such as slurry mixing, lining plate and screen, and reasonably arrange the replacement time according to their wear degree and production tasks.
(3) Do a good job in parts management.Mobile asphalt mixing plant is usually located far away from the urban center, so it is relatively difficult to buy accessories. In order to ensure that there are sufficient accessories for replacement in case of equipment failure, a certain spare parts reserve must be guaranteed. Especially for vulnerable parts such as slurry mixing, lining plate and screen, the production and delivery cycle is generally one month, and it is usually required to ensure more than 3 sets of inventory accessories.
Production scheduling includes raw material scheduling, production team scheduling, transportation team scheduling and coordination and communication with personnel on the asphalt paving construction site. One dispatcher shall be set for each shift of the mixing plant to formulate the material supply plan according to the requirements of the construction plan; Organize the transportation team to put into the production process to ensure that the transportation capacity meets the production requirements; For the mixing plant with more than two asphalt mixing plants, the production team and batch shall be reasonably arranged according to the type of asphalt mixture to be supplied.
3. Quality control of raw materials and finished products
The quality control of raw materials includes asphalt raw materials, various crushed stone aggregates, diesel oil, etc., which are jointly controlled by materialman and laboratory personnel. Sampling inspection shall be conducted for asphalt raw materials during feeding to inspect their softening point, penetration, ductility and other performance indexes. When the crushed stone is fed, the appearance inspection shall be carried out first to check its specification, needle and flake content and whether it is weathered, and the sample shall be sent to check its mud content and crushing value. The quality of finished materials shall be jointly controlled by the production team and laboratory personnel. The production team shall carry out production in strict accordance with the grading, conduct appearance inspection and temperature inspection on the finished materials, and the laboratory personnel shall sample the finished asphalt mixture for Marshall test.
4. Safety production management
In order to do a good job in the safety production management of the mixing plant and ensure that no safety accidents occur to mechanical equipment and personnel, effective preventive measures must be taken:
(1) Establish the safety responsibility system at all levels, implement and decompose the safety responsibility layer by layer, and link it with the economic assessment indicators.
(2) Formulate corresponding operating procedures, rules and regulations, require personnel at all levels to strictly abide by them, and carry out safety education regularly.
