In recent years, the safe production of coal mines is a problem that everyone pays more attention to. The conveyor belts also play a certain role in the safe production of coal mines. However, if the conveyor belts are selected incorrectly, they will cause unnecessary losses. There are mainly the following conveyor belts.
1. Downhole conveyor belt. Coal mines contain gas and coal is flammable. The use of conveyor belts must first ensure the safety of underground coal transportation. Therefore, China's Coal Mine Safety Regulations stipulate that the conveyors used underground must use flame-retardant conveyor belts, and also stipulate that underground use The flame retardant conveyor belt must obtain safety signs and production licenses. At present, there are only three kinds of flame-retardant conveyor belts used in coal mines in China: The first one is the core-core flame-retardant conveyor belt (MT914) for coal mines.
2 is a flame retardant steel cord conveyor belt (MT668) for coal mines,
3 is a flame-retardant steel wire rope traction belt (MT669) for coal mines with a small amount of use. The fabric whole core flame retardant conveyor belt is a special conveyor belt for underground coal mines. Because of its good flame retardant and antistatic properties, it has light weight, low manufacturing cost, good tear resistance, small footprint, installation, The advantages of convenient maintenance and so on, so it is the preferred type of coal mine underground. 2. Conveyor belts for ground and open pit mines. Compared with coal mines, the ground and open coal mines have better transportation conditions. Flame retardant and antistatic are not the main requirements. The principle of using conveyor belts is based on physical and mechanical properties, taking into account safety performance. Depending on the environment and conditions of use, layered conveyor belts and steel cord conveyor belts should be preferred. Under normal temperature conditions (-10 °C ~ 40 °C), the general purpose fabric core flame retardant conveyor belt (GB/T10822) and the steel cord core flame retardant conveyor belt (HG/T 2297) are selected. When the ambient temperature is lower than -10 °C, Cold resistance should also meet the requirements of cold resistant conveyor belts (HG/T 3647).