Safety specification for coal mining scraper conveyor
Scope This standard specifies the safety requirements for the design, manufacture, installation, use and maintenance of coal mining scraper conveyor (hereinafter 'conveyor belts'). This standard is mainly applicable to conveyor belts used in underground coal mines, and also to belt conveyors in workplaces with open-pit coal mines and coal preparations.
Safety regulations: The design and manufacturing phase.
1. will guarantee the stability and resistance of coal mining scraper conveyor in all normal working conditions to guarantee the reliability of the work of the conveyor.
2. On the entire conveyor line, especially at the loading, unloading or transfer points, it must be designed to avoid spillage of the transported material as much as possible and to consider appropriate dust reduction measures.
3. The transport inclination of coal mining scraper conveyor must fully consider the characteristics of the transport materials, so that the conveyor should not roll or spray under normal working conditions.
4. The coal mining scraper conveyor must use a flame retardant conveyor belt, its safety performance and the technical requirements must comply with the provisions of MT147 and MT450. For non-metallic materials, safety performance must comply with the provisions of MT113.
5. Conveyor belts should have an adequate transport capacity and the width of the transport material. If necessary, install a guide plate or centering device at the point of loading or unloading.
6. The engine, electrical control equipment and protection combined with coal mining scraper conveyor must comply with the provisions of GB3836.1 ~ 3836.4, and have the explosion-proof certificate issued by the designated unit.
7. The maximum surface temperature of any part of the conveyor should not exceed 150 ° C.
