The process flow and equipment maintenance and repair of the mine-type coal washing plant must be detailed, such as how to control the ash content, such as heavy medium coal washing, how to add medium

The process flow and equipment maintenance and repair of the mine-type coal washing plant must be detailed, such as how to control the ash content, such as heavy medium coal washing, how to add medium, how much to add, thank you

The process flow has little to do with the type of coal preparation plant, but only with the quality of the coal. Equipment maintenance and repair also does not matter the type of coal preparation plant. The control of ash content in heavy media mainly relies on density adjustment, and it is automatically controlled after the density is set. The method of adding media is determined at the time of design. The specific methods include manual adding, electromagnet adding, belt adding, bucket lifting adding, thick media poking adding, medium pit adding adding, etc. Generally, media is added once to reach the high liquid level and qualified density before starting the machine. Media is generally not added during the production process. Unless the liquid level reaches the lowest level, media is added during the production process.