What Are the Main Applications of Slurry Pumps in Coal Washing Plants?

Raw coal washing and selection process

Coal slurry conveying: In a coal washing plant, the raw coal must first be broken into a suitable particle size, and then mixed with water to form coal slurry. The slurry pump can transport this coal slurry from the raw coal bin or crushing workshop to washing equipment such as jitters, heavy medium cyclones, etc.

Adapt to differences in coal quality: The properties of raw coal in different coal mines are different, such as the hardness, particle size, gangue content, etc. of coal. The slurry pump can adapt to the transportation of coal slurry of various coal quality. For coal with high hardness, the overflow components of the slurry pump (such as impellers and pump shells) use wear-resistant materials (such as high chromium alloys) to resist the wear of coal particles; for coal slurry with more gangue, its larger overflow channel can ensure the smooth passage of gangue particles to prevent blockage.

Coal slime water treatment process

Coal slime water collection and transportation: A large amount of coal slime water will be generated during the coal washing process. The slurry pump is used to collect this coal slime water from various washing equipment (such as flotation machines, shakers, etc.) and transport it to the coal slime water treatment system.

Recycled water supply: After the treated coal sludge water, part of the clean water can be circulated back to the washing equipment through the slurry pump to wash coal again, realizing the recycling of water resources. During this process, the slurry pump needs to ensure the quality and flow of circulating water to meet the requirements of the coal washing process.

Coal slime recovery and transportation: Coal slime will form after coal slime water precipitates. The slurry pump can extract these coal slime from the bottom of the sedimentation tank or the coal slime collection equipment and transport it to the coal slime drying equipment or the coal slime filter press for further processing.

Fine coal and gangue treatment process

Fine coal transportation: The washed and selected fine coal needs to be transported whether in the form of wet coal or coal slurry. The slurry pump can transport the refined coal slurry to the refined coal dehydration equipment or the refined coal silo.

Garrot emission: Garrot separated during coal washing usually mixes with water to form gangue slurry. The slurry pump can transport the slurry to the slurry yard or slurry filling area.