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Maintenance tips for asphalt mixing plants

Construction safety has always been a major issue, and we cannot let any safety hazard go unnoticed. Especially the use of equipment at the construction site. Asphalt mixing stations are prone to failure. Strengthening the maintenance of this equipment is essential to ensure safe construction at the construction site, improve equipment integrity, reduce equipment failures, and ensure the quality of concrete. The role of neglect.
The composition of the asphalt mixing plant is relatively complex, so during maintenance, classified maintenance should be carried out according to the usage and functions of different parts. Maintenance content can be divided into tank maintenance, winch system maintenance and adjustment, stroke limiter adjustment and maintenance, wire rope and pulley maintenance, lifting hopper maintenance, track and track bracket maintenance, etc.

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Construction safety has always been a major issue, and we cannot let any safety hazard go unnoticed. Especially the use of equipment at the construction site. Asphalt mixing stations are prone to failure. Strengthening the maintenance of this equipment is essential to ensure safe construction at the construction site, improve equipment integrity, reduce equipment failures, and ensure the quality of concrete. The role of neglect.
The composition of the asphalt mixing plant is relatively complex, so during maintenance, classified maintenance should be carried out according to the usage and functions of different parts. Maintenance content can be divided into tank maintenance, winch system maintenance and adjustment, stroke limiter adjustment and maintenance, wire rope and pulley maintenance, lifting hopper maintenance, track and track bracket maintenance, etc.
Among them, the tank is a device that is prone to wear and tear and needs to be maintained more frequently. Frequently used parts such as liners, blades, mixing arms and material door seals should be adjusted and replaced in time according to wear and tear. After mixing the concrete in the asphalt mixing station, the tank must be flushed in time, and the remaining concrete in the tank and the concrete adhering to the material door must be thoroughly flushed to prevent the concrete in the tank from solidifying. The flexibility of opening and closing the material door should be checked frequently to prevent the material door from getting stuck. The thick oil pump is operated twice per shift to supply oil to the shaft end of the tank to lubricate the bearings and discharge sand, water, etc. During the maintenance process, the power supply must be cut off and personnel must be assigned to take care of it to avoid accidents. Make sure there are no foreign objects in the tank before starting the machine each time, and it is strictly prohibited to start the host with load.
The winch system of the asphalt mixing plants will affect the work efficiency and ensure that the hopper can operate correctly to the appropriate position when needed at the construction site. The large nut on the back seat of the motor can be adjusted to adjust the power torque. Remove the connecting screw between the lock nut and the fan brake, retreat the lock nut to the appropriate position, move the rotor to the extreme position toward the shaft end, and then Move the fan brake backward so that the brake ring fits the inner conical surface of the rear cover. Tighten the locking nut until it contacts the end surface of the fan brake. Then screw it in one turn and tighten the connecting screw. If there is abnormal braking in the hopper, move the locking nut back to the appropriate position, and then tighten the hexagon socket bolt at that end clockwise. If the machine is stuck when starting the lifting motor, move the locking nut back to the appropriate position first, and then tighten the hexagon socket bolt clockwise. Loosen the hexagon socket bolt at this end, lengthen the inner brake distance, and then tighten the locking nut.
For the limiter, we should regularly check whether there are abnormal connections, different lines, etc. These conditions will affect whether the asphalt mixing station can operate safely. Regular maintenance and inspection of asphalt mixing plants can not only ensure project quality, but also reduce project costs and improve construction efficiency.

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    1. The combined structure of the drum dryer and the batching machine is installed on a movable bracket for easy movement.
    2. The asphalt mixing plant is equipped with a double horizontal shaft to boil the aggregate and ensure uniform mixing.
    3. In the densely arranged hanging barrels, the hot aggregate rises vertically. This lifting tool is easy to use and reliable.
    4. For accurate weighing of aggregates, asphalt and powder ore, a measuring scale is used, which contains a weighing sensor for electronic measurement.
    5. The movement of the power material follows a closed spiral path, which ensures little material loss and provides safe transfer.
    6. On the cyclone burner, high-pressure oil is sprayed out and quickly atomized. In the combustion chamber, the material is fed in a spiral manner and automatically ignited by the oil mist, which ensures combustion efficiency. The cylindrical barrel of the burner is separated from the burner head. The furnace cavity can be pushed in and pulled out, which is convenient for replacing the damaged side column bricks inside the burner. The entire burner has a large heat capacity and high thermal strength. This is cost-effectiveness.

    The materials used in asphalt mixtures contain a lot of dust. When the equipment is operating, if the dust enters the atmosphere, it will cause pollution. Therefore, dust removal equipment must be installed, and now bag dust removal is the main method. Safety is a common sense issue. There are well-established standard safety rules.
    Do not clean, oil or adjust any mechanical equipment that is not specifically explained during operation; turn off the power and lock it before inspection or repair activities to prepare for accidents. Because each situation has its own particularity. Therefore, be vigilant about safety damage issues, incorrect operation issues and other deficiencies. All of them may lead to accidents, personal injuries, reduced production efficiency, and more importantly, loss of life. Careful and early prevention is the best way to avoid accidents.
    Careful and correct maintenance can make the equipment work more efficiently and control it within a certain level of pollution; the maintenance of each component should be carried out according to its operating standards; maintenance plans and safe operation procedures should be formulated according to the inspection and repair conditions that must be carried out.
    Take out a work log to record all inspection and repair conditions, list the analysis of each inspection of each component and the description of the repair content or the date of the repair; the second step is to give the inspection cycle for each component, which should be determined according to the service life and wear condition of each component.