The development of scraper conveyor in the production and construction of coal mine has gone through three stages.Is a removable scraper conveyor, it can only be laid in a straight line in the working face, with the work face advance, need to manually disassemble, move, assemble.The scraper chain is plate type, mostly single chain, such as V type, sgd-11 type, sgd-20 type and other small power light scraper conveyor.The working principle of the scraper conveyor equipment is that the open chute is used as the bearing member of coal, waste rock or materials, and the scraper is fixed on the chain (forming the scraper chain) to serve as the traction component.When the head drive is started, drive the sprocket wheel on the head shaft to rotate, and drive the material to move along the chute until unloading at the head.The scraper chain bypasses the sprocket wheel to make the stepless closed circulation operation, completes the material transportation.
Advantages of scraper conveyor equipment:
1. simple structure, in the transmission length can be any point of feeding or unloading.
2. The enclosure is closed, which can prevent dust from flying and polluting the environment when transporting materials.
3. When the rear part of the machine is not set up and the scraper is inserted into the material pile, the material can be taken and transported by itself.
4. Solid structure.Can withstand the impact, impact, smash, pressure and other external forces of coal, gangue or other materials.
5. can adapt to the coal mining face floor uneven, bending needs, can withstand the vertical or horizontal direction of bending.
6. the body is short, easy to install.
7. can also be used as shearer running track.
8. It can be operated in reverse to facilitate the handling of bottom chain accidents.
9. Can be used as the fulcrum of the front section of hydraulic support.