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Hardware failures and efficiency of asphalt mixing plants

Certain failures cannot be avoided during the use of the asphalt mixing plant. For example, a malfunction of the cold material feeding device may cause the asphalt mixing plant to shut down. This may be due to a malfunction in the asphalt mixing plant or due to gravel or foreign matter being trapped under the cold material belt. If it is stuck, if it is a circuit failure, first check whether the motor control inverter of the asphalt mixing station is faulty and whether the line is connected or open.

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Certain failures cannot be avoided during the use of the asphalt mixing plant. For example, a malfunction of the cold material feeding device may cause the asphalt mixing plant to shut down. This may be due to a malfunction in the asphalt mixing plant or due to gravel or foreign matter being trapped under the cold material belt. If it is stuck, if it is a circuit failure, first check whether the motor control inverter of the asphalt mixing station is faulty and whether the line is connected or open.
It is also possible that the belt is slipping and deviating, making it difficult to operate. If so, the belt tension should be readjusted. If it is stuck, someone should be sent to clear the obstruction to ensure that the belt is running and feeding good materials. If the mixer in the asphalt mixing station malfunctions and the sound is abnormal, it may be because the mixer is instantly overloaded, causing the fixed support of the drive motor to be dislocated, or the fixed bearing is damaged, and the bearing needs to be reset, fixed or replaced.
The mixer arms, blades or internal guard plates are seriously worn or fallen off and need to be replaced, otherwise uneven mixing will occur. If the mixer discharge temperature shows abnormality, the temperature sensor should be cleaned and the cleaning device should be checked to see if it is working properly. The sensor of the asphalt mixing station is faulty and the feeding of each silo is not accurate. It may be that the sensor is faulty and should be checked and replaced. Or the scale rod is stuck, foreign matter should be removed.
The production efficiency of the asphalt mixing plant determines the progress of the entire project. The quality of mixing is also related to the quality of the project. In order to ensure the mixing quality and mixing efficiency, an excavator can be used to tip over to balance the moisture content of the raw materials. Since the moisture content of black ash and white ash is determined by many uncertain factors, especially white ash, the digestion quality, its own quality, and whether it is screened all affect the use efficiency of white ash.
Therefore, before use, it is necessary to ensure the appropriate construction moisture content of the white ash and to grasp the appropriate stacking time. After stacking, if it is too wet, you can use an excavator to turn it over several times until it reaches the appropriate moisture content, which not only ensures construction efficiency but also ensures the amount of ash.

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    Asphalt mixing stations, also known as asphalt concrete mixing stations, can produce asphalt mixtures, modified asphalt mixtures, and colored asphalt mixtures, which fully meet the needs of building highways, grade roads, municipal roads, airports, ports, etc. Changmeng Electric Power introduces the safety operating procedures of asphalt mixing plants below:
    1. During the operation of the mixing equipment, in addition to ensuring that the equipment is in good condition, it should also be equipped with a mineral moisture content detector and a finished material tester, and the relevant data should be frequently tested for the operator to adjust the operation in time to keep the equipment in good condition.
    2. In addition to affecting production capacity, the moisture content of mineral materials is also the main factor determining fuel consumption. Additional material sheds should be added.
    3. Before operation, all working parts and devices of the mixing equipment should be fully checked to see if they are intact and normal. If there are any problems, they must be properly handled before operation, and it is forbidden to operate with illness.
    4. The operation must be carried out strictly in accordance with the procedures and precautions specified in the instruction manual. After normal ignition, the dust collector should be monitored to ensure that the drying drum burns under negative pressure; after production starts, the hot material elevator and agitator should be monitored to see if they are working normally to coordinate the operation of other parts.

    The actual operation steps of drying drum of asphalt mixing equipment: 1. Pay attention to routine inspection; 2. Proper operation steps; 3. Effective maintenance.
    Drying drum is a cylindrical device specially used for heating and drying stones in asphalt mixing equipment. Proper application and maintenance of drying drum can maximize the performance of drying drum, increase its service life and reduce application cost. Let’s take a look at the actual operation steps below.
    1. Pay attention to routine inspections
    The asphalt mixing equipment drying drum has been tested and inspected before leaving the factory, but it will be subjected to vibration and vibration during transportation to the construction site. A comprehensive inspection should be carried out before use: check whether all anchor bolts are tightened; whether all key pins are properly driven; whether all drive devices are adjusted according to the manufacturer’s instructions; whether all pipe connections are appropriate and whether the three-way joints are reliable; whether the entire equipment is fully lubricated; start the motor and check whether all parts can rotate steadily in the correct rotation direction; whether the pressure gauge can work normally and whether the valve is adjusted to the correct working pressure; whether the burner ignition mechanism is available and whether the gate valve is open.
    2. Correct operation steps
    After the equipment is started, it is recommended to control the machine manually at the beginning, and then switch to the automatic control mode after achieving the required production volume and pouring temperature. The stone should be dried and have a stable moisture content as much as possible so that the stone can maintain a stable final temperature when passing through the drying drum. If the stones delivered to the drying drum change frequently and the moisture content changes each time, the burner should be adjusted frequently to compensate for these changes.
    The stones directly from the crushed stone have a relatively constant moisture content, while the stones from the outdoor storage yard have a higher moisture content, and the moisture content of different piles varies greatly. Therefore, it is best for the stones to come from the same source.