For the belt conveyor, the conveyor belt occupies a very important position. It is both a traction member and a load-bearing member, and is expensive, accounting for about 30% to 50% of the entire belt conveyor cost. Once the conveyor belt is thinned by wear, it is accompanied by failures such as reduced strength, shortened life, and belt deviation. Today, Mingcheng Transmission will first tell you about the wear form between the feed chute and the conveyor belt, and put forward some maintenance measures in combination with the actual production.
First of all, we will introduce the relationship between the feed chute and the conveyor belt. The feed chute is in close contact with the conveyor belt. Its design and installation have a great influence on the wear of the conveyor belt. It is the main form of wear of the conveyor belt. .
Causes of wear between the feed chute and the conveyor belt
1. The material has an impact on the conveying during feeding, especially when the angle between the material and the conveyor belt is greater than or equal to 90°, which will cause strong wear on the conveyor belt;
2. In order to prevent the material from scattering, the contact plate and the conveyor belt are in too tight contact, so that the conveyor belt is worn;
3. The hard object with long inclusions in the material is stuck at the feed port, wearing or scratching the conveyor belt.
Maintenance measures to prevent wear between the feed chute and the conveyor belt, in order to minimize the wear of the feed conveyor belt, the structural design of the feed port should meet the following conditions:
1. The operation of the feeding material and the conveyor belt should be in the same direction. During the feeding process, the material moves at almost the same speed as the conveyor belt;
2. The equivalent free fall height of the material falling onto the conveyor belt is preferably less than 1 m, so that the impact strength of the conveyor belt is minimized as much as possible;
3. Install in the feeding chute to enable the fine-grained material to fall onto the conveyor belt first, and provide auxiliary material for the bulk material;
4. Design a reasonable chute and guide trough so that the material continuously falls to the center of the conveyor belt;
5. The width of the baffle of the guide trough is narrower and narrower along the running direction of the conveyor belt, and the guide trough should extend to the speed of the material to reach the belt speed;
6. The feeding section is kept horizontal, or the slope is not more than 8°, and the cushioning roller is installed in the feeding section or the grooved roller is arranged in an encrypted manner. In addition, the chute and the guide trough should be fixed so that they are correctly positioned against the conveyor belt and the bottom of the guide cannot be over-tightened with the conveyor belt