Description

The abrasion resistance of the middle slot of the scraper machine means that it can save cost, improve work efficiency and increase the service cycle of the scraper conveyor. Generally, the abrasion is mainly in the middle and the groove side, especially in the joint of two slots. Therefore, henan Shuangzhi put forward the improvement measures.

1. Adopt high-strength wear-resisting material

At present, the scraper conveyer common material is high manganese steel. High manganese steel strength, wear resistance are better, but this material also has shortcomings. Faced with complex underground working environment, high manganese steel has poor corrosion resistance, easy to rust and short service life. Although high manganese steel has good wear resistance, it will consume a lot of energy due to its high friction coefficient. In order to improve the defects of the current central trough, materials with good wear resistance, low friction coefficient and corrosion resistance should be used. For example, new materials should be selected to design the chute of scraper conveyor, and monomer casting nylon should be selected as the main material of the central trough.

2. Strengthen the surface of the middle trough

Strengthening the surface of chute can not only reduce the friction distance between scraper and chain in the middle trough, but also improve the service life of the middle trough. At present, the chute is made of high manganese steel. In addition to changing the composition, it is necessary to strengthen the treatment during the improvement process. Drr*2 numerical control technology can be used to partially cover the surface of the middle slot to enhance the wear resistance of the material. Strengthening the surface of chute can not only reduce the friction distance between scraper and chain in the middle trough, but also improve the service life of the middle trough.

3. Strengthen the maintenance and management of scraper

In the scraper conveyor management and maintenance, first of all, before installation, should do the inspection of the scraper conveyor parts, in order to ensure that the quality of machine parts qualified. Secondly, in the installation process, should determine the installation location of each part of the scraper conveyor, each part should be installed straight, and the middle slot interface, the nose frame, tail frame and aqueduct interface left and right wrong mouth amount should be less than 3mm. For overworn links, a new chain replacement should be used. When the chute is fully loaded, the double chain droop of the head return chain should be *0~**0mm, and the single chain should be *0~**0mm. Furthermore, in the process of pushing the scraper conveyor, it should be ensured that the distance between the bending part of the scraper conveyor and the coal mining machine should be more than *6m, and the bending length should be greater than *3m, the bending section should be smooth, and there can be no sharp bend, so as to avoid the chute caused by the wrong mouth of the chain and other accidents. After zUI is installed, it shall be inspected in strict accordance with relevant standards, especially the liquid filling amount of the hydraulic coupler, which shall be matched with the motor. In addition, the chute should be cleaned regularly to ensure a clean working environment.

4. Do rust removal and surfacing work well

Because scraper conveyer is easy to rust, therefore must do the welding part the derusting work. In the transportation process of coal mine, the middle plate and the bottom plate are easy to wear out. Therefore, the enterprise should do well in the surfacing welding of the two parts, and adopt the welding materials with better wear resistance, so as to obtain the wear-resisting protective layer with better quality. After the completion of surfacing work, should also do a good job of grinding, to ensure that the coal mine scraper transport through the smooth.

My company from the purchase, installation, maintenance and other aspects of the scraper to extend the use of the central trough cycle. To learn more about coal machine information attention henan Shuanzhi official website.