The main equipment of coal transportation, the belt conveyor plays an important part in coal production. The operation stability of the belt conveyor is affected by the drum, which is a component of its driving belt. The conveying performance of belt conveyors is improving with the increase in coal mine efficiency. This means that there are higher requirements for rolling Jane. The long service life of the belt conveyor during coal conveying means that the drum can be easily worn and damaged, which can have a significant impact on coal conveying production. Research and development are focusing on the production of a durable and high-performing drum. It is important to analyze the drum wear and take the appropriate measures to reduce the risk of drum failure. This will ensure that belt conveyors can continue to function smoothly.
1 Analyse rubber surface wear on drum
The drum’s outer shell is used as a driving and brake component. However, it will wear down in contact with the conveyor belt. To prevent drum wear, it is often coated on its outer surface. The outer coating can also wear during the actual usage process. It is possible to damage the belt conveyor by abrasion or cause the conveyor belt to deviate from its original position. This is not conducive to the transport of coal. Wear is caused by friction between the rollers and the conveyor belt.
The friction coefficient of the conveyor belt, tension, and angle of the drum are all factors that can cause sliding. These factors affect the rubber surface of the drum on the outside, making it slip and causing wear. In the coal transport process, there will be coal particles that are scattered between the conveyor belt and drum. The conveyor belt’s pressure can accelerate the wear of rubber surfaces. These particles coat the rubber drum and cause uneven wear, decreased tensile strength, and increased wear.
To reduce adhesion, avoid abrasion from particles on the rubber surface.
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2 Simulation of rubber surface wear
The simulation calculation uses quantitative analysis to determine the factors that affect the slip of the roller. The model of a belt conveyor shows that the roller’s diameter is 200mm, the friction coefficient of 0.3, and the tensile strength (or rubber surface) of the roller is 2GPa.
2.1 Wear analysis due to sliding angle
The rubber surface wear is affected by the sliding angle. In MATLAB software, set the state of the drum and calculate the rubber surface wear at different sliding angles. Also, ensure that the conveyor belt tension is maintained. The wear rate of the rubber drum’s surface increases linearly with increasing the sliding angle. The sliding angle is a major factor in rubber surface wear. It is therefore important to control the drum’s sliding angle. If there is severe wear, you can adjust the drum’s position to suit the conditions. This will reduce the drum’s sliding angle and rubber surface wear.
2.2 Wear analysis due to conveyor belt tension
The tension of the conveyor belt will be affected by changing the sliding angle. The conveyor belt’s tension can be increased to improve its traction and conveying ability. However, it will increase the sliding angle, which is not good for reducing wear on the rubber roller surface. The simulation analysis is done to determine the tension effect on the conveyor belt.
MATLAB software can be used to set the state and rubber surface wear of the drum under different tensions. The roller wear is smaller when the tension force is lower. However, if the tension force exceeds a certain level, the roller wear will increase exponentially. To avoid excessive wear on the drum during tensioning, it is important to determine the ideal conveyor belt tension force.
The sliding angle is directly related to the tension on the conveyor belt. To intuitively see the impact of both on rubber surface wear of drums, wear is simulated in both the changing of drums. The tension of the conveyor belt and the drum’s wear are both significant. To reduce wear, the priority is to control the tension on the conveyor belt. The tensioning drum controls the tension on the conveyor belt. The position of the tensioning drum can have a significant impact on the drum’s rubber surface. It is therefore important to choose the right position for the tensioning drum.
2.3 Wear analysis for conveyor belt steel wire diameter
The volume of transport is the primary consideration when designing a belt conveyor. However, the conveyor belt’s tensile strength will be greatly affected by the diameter of the steel wire. The conveyor belt steel wire diameter is different from the drum’s pressure, which can affect the rubber surface wear. For the modification of the diameter of the steel wire in the conveyor belt, a simulation analysis is performed.
To set the working conditions for the drum and conveyor belt, MATLAB software can be used. The rubber surface wear on the drum is decreasing rapidly as the steel wire diameter is changed. A larger diameter steel wire is better for reducing the rubber surface wear on the drum. However, drum wear is lessened when it reaches a certain diameter. When designing conveyor belts, it is important to choose a wider steel wire diameter and determine the conveyor belt strength. This will reduce rubber surface wear on the roller.
The slippage between the rollers and conveyor belts can cause rubber wear on the roller surface. This can lead to deviation of belt conveyor operation which will affect the delivery of coal. MATLAB can be used to simulate and analyze roller skids on the belt conveyors. These results showed that the sliding angle, the tension of the conveyor belt, and conveyor wire diameter for rubber roller surfaces wear have a greater effect. To decrease roller surface wear, it is important to reduce slip Angle and reduce tension. The service life of the roller can also be extended by taking appropriate measures to reduce rubber surface wear. This will allow the belt conveyor to operate more stable and can transport coal better.