How to design the transmission belt more rationally

Principles of Design

In the design process of the long distance belt conveyor, in line with the principle of improving the reliability of equipment and reducing the project cost, while considering the terrain conditions, installation difficulty, maintenance operability, power supply and water supply arrangement, civil engineering and other factors, the long distance belt conveyor is mainly arranged along the gentle terrain of the river valley. Along the way, avoid villages and towns, existing buildings, steep hills, waters and areas with poor geological conditions as much as possible. Meanwhile, reduce the occupation of cultivated land as much as possible and do not damage the local ecological environment.

 

Most of the conveyor system adopts the form of steel structure overhead trestle, which crosses the valley, highway, river and other facilities along the way. The overhead height meets the requirements of the limit stipulated by the state, and does not affect the construction of the original facilities and road traffic. The belt conveyor is sealed with color steel plate throughout the whole process, and the whole material is not exposed to transport, which is not affected by rain, wind, snow and other climatic conditions, so as to avoid dust and noise pollution. The transmission system is equipped with transfer station, drive station house and substation, as close as possible to the highway and near the intersection with the existing highway, convenient installation and transportation and daily maintenance.

 

 

 

Key Points of Design

2.1 Choose reasonable buffer receiving device

 

The service life of the belt of the long distance belt conveyor needs to be guaranteed by measures to reduce the impact and wear of the belt is the main measure. The belt conveyor bears a large impact at the material point, so reasonable technology and method should be adopted in the design to reduce the impact on the belt. In addition to reducing the blanking height difference, reasonable buffer facilities should be selected. At present, the most advanced and suitable is the integral buffer receiving device with supporting plate, which combines the advantages of the buffer roller and the buffer press.

 

Generally, the spacing of the buffer roller is about 400 mm, and the belt is suspended between the two buffer rollers. At this time, the impact of the material will cause great damage to the belt, especially the material with large lumpiness and sharp edges or sharp foreign bodies (iron, lining, etc.). Once it falls on the belt between the two rollers, the belt will penetrate and cut. If not handled in time, the whole tape will be split into two, which is fatal to the destruction of large steel rope core tape. For this reason, a rigid supporting plate is designed between each buffer roller. During normal operation, the rubber belt does not contact with the supporting plate. Once large materials and foreign bodies impact the rubber belt, the rubber belt will contact with the rigid supporting plate after deformation due to the force.