Belt conveyors are used in all walks of life due to their smooth operation and continuous capacity. In recent years, due to the gradual improvement of the production capacity of major mines, the transportation capacity of belt transportation has gradually tightened. The traditional transformation plan is to replace the high-power belt conveyor, but this solution needs to repurchase the belt conveyor, the construction belt conveyor foundation, the recycling of the old belt conveyor, and the installation. New belt conveyors, etc., have large engineering and high investment, so it is of great significance to improve transportation capacity on the basis of existing belt conveyors.

01 Improve the effective running time of the belt conveyor

 The effective running time of the belt conveyor means that the conveyor has a continuous transport object within its load range during its operation. That is, one aspect is to increase its running time, and on the other hand, to improve the continuity of the transported goods during operation. First of all, try to avoid normal maintenance and repair in the case of transportation demand, so that the running time of the belt conveyor and the transportation demand time are consistent; secondly, avoid the various abnormal shutdowns caused by equipment failure or human cause during the transportation of the belt conveyor.

02 Reduce belt conveyor failure rate

In the actual production, if the belt conveyor fails, the lighter will stop the inspection and delay the production time, and the safety will bring hidden dangers. For example, if the tension is insufficient or the bottom plate is uneven, the uneven force of the conveyor will affect the belt to a large extent. The transport capacity of the machine.

1) The tension is insufficient and the conveyor belt is slack, causing the belt conveyor to slip

The tensioning device is an indispensable part of the conveyor. It is directly related to the safe operation and service life of the conveyor, especially for large conveyors with large capacity and long distance. The change of the load causes the length of the conveyor belt to change, and the position of the tension roller must be adjusted frequently to ensure the normal operation of the belt conveyor. In the past, the fixed winch was generally used for tensioning, and it can only tension the belt regularly, and the degree of tension is often related to the operator's experience. It is often caused that the tension is too large or too small to affect the safe and smooth operation of the conveyor, resulting in The conveyor belt is slack and causes slipping and pulling accidents. Solution: Replace with an automatic tensioning device. The automatic tensioning device precisely controls the tension of the tape, monitors the tension of the tape in real time, and has excellent dynamic response capability, responding to changes in tape tension in a very short time.

2) The height of the bottom plate is undulating, and the belt machine is unevenly stressed, resulting in a pressure belt accident.

When the nose is unloaded and the second half is full, the belt conveyor is not evenly stressed. The machine drive roller slips and causes the belt conveyor to pull, and the second half presses the belt. Secondly, the overall height of the conveyor rises and falls, resulting in partial support. The roller is subjected to large force and the phenomenon of bad roller frequently occurs; the tail roller is at a relatively low point, and it is subjected to an upward pulling force in addition to the horizontal pulling force of the tape, which is likely to cause damage to the tail roller.

Solution: Reduce the running resistance by flattening the ridge of the roadway, the bottom of the conveyor shaft and the height of the H-frame to improve the slope of the belt conveyor.

03 Do the maintenance of the belt conveyor

The maintenance and repair work of the belt conveyor is completed, which improves the operation efficiency of the belt conveyor. The maintenance and repair of the belt conveyor is mainly carried out for the belt cleaner, the belt itself, the power unit and the electric protection device.

 § (1) Daily maintenance of the cleaner If the sweeper presses the belt or the roller surface too tightly or the gap is too large, the belt may be damaged or the cleaning effect may be reduced. In addition, in order to prevent the belt from being broken after the cleaner is damaged, the integrity of the parts is also an important point of view. If the material is found to be too concentrated on the cleaner or the parts are incomplete, it should be shut down immediately for cleaning and replacement.

§ (2) Routine maintenance of the belt Roller slip is usually caused by insufficient belt tension, while the lower belt vibration is generally caused by excessive belt tension. Therefore, the daily maintenance of the belt is mainly the maintenance of the tension. The adjustment of the belt tension is controlled by the value of the load sensor pressure gauge, or the conveyor belt is not slippery on the sensing drum. Belt deviation and abnormal wear are the main reasons for the shortened belt life. In daily maintenance, the deviation of the belt conveyor should be corrected in time, and it is necessary to avoid the abnormal wear. Long-term deviation can easily cause the tape to be pulled, cracked or even longitudinally torn.

§ (3) Routine maintenance of the power unit

The reducer, motor and roller bearings are the power supply for the belt conveyor. Electromechanical maintenance personnel should always observe the grease lubrication and heat generation of these components. During the observation, it is found that these equipments have oil leakage or oil penetration. It is necessary to check the cause in time and make oil replenishment at the oil leakage. For equipment that is abnormally hot, it is necessary to stop the maintenance and check the cause in time to avoid accidents.

§ (4) Electrical control and protection device maintenance

The electric control and protection device is the electrification equipment on the belt conveyor. For this type of equipment, the electrical and mechanical maintenance personnel must inspect and repair it in strict accordance with the relevant operating instructions. When repairing other parts of the belt conveyor, it is necessary to protect the electrical equipment to prevent it. Loss of error.

04 Improve the professional quality of operation and maintenance personnel

 The quality of the belt conveyor operation and maintenance personnel is related to whether the belt conveyor can be properly operated and maintained. We once learned that some operators did not follow the belt machine operating procedures. No detailed inspection of the equipment before starting the machine. As a result, a broken roller caused more than 700 meters of belt to be cut from the middle, causing serious belt transportation. The accident brought significant economic losses to the company. Therefore, enterprises must often conduct special business training for operators, so that operators and maintenance personnel can recognize the importance of their positions, and can strictly abide by the operating procedures and maintenance procedures, so as to prevent the operation of the belt conveyor from being caused by mistakes or maintenance errors. To improve the transportation capacity of the belt conveyor, first select the products of the regular manufacturers when purchasing the equipment, and the mature production capacity has sufficient guarantee for the quality of the equipment. Secondly, in the process of installation and operation, it must be operated according to the regulations to prevent unnecessary failures. Finally, the maintenance and maintenance of the belt conveyor should be done to improve the management and maintenance capabilities, and strive to maximize the transportation capacity of the belt conveyor.