Coal washing plant mud water treatment process

December.17,2024

defaultCoal washing plant mud water is industrial wastewater generated during coal washing and processing. Coal mud water contains different amounts of various substances, such as heavy metals, coal mud, chemical agents, heavy media, etc. If these substances are not effectively treated and discharged, they will pollute the local environment.

Coal mud water treatment methods include coagulation sedimentation, natural sedimentation, agglomeration treatment, gravity concentration sedimentation, etc. Flocculation treatment technology, the flocculants commonly used mainly include inorganic polymer flocculants, organic polymer flocculants, and microbial flocculants.

The washing process of Shaping Coal Washing Plant includes unclassified raw coal jigging sorting + coarse coal mud interference bed sorting machine sorting + coal mud flotation treatment-concentrated filter tailings and other processes. Therefore, the coal washing plant mainly produces coal mud water through pipeline dripping water, classification, desludging screen water, centrifugal dehydrator centrifugal liquid, final coal desludging screen water, jigging coal mud water desludging screen water and other processes.

If the slime concentration in the slime water is low, the slime recovery equipment and process cannot be used. In order to effectively recover the slime in the slime water, the coal washing plant generally chooses to concentrate the slime. The slime concentration equipment currently used in coal washing plants is usually a natural sedimentation type. Some will add chemical agents to promote slime concentration. The high-concentration slime slurry will be discharged from the bottom of the concentration equipment, and the overflow water containing very little slime will overflow from the top; ④ Whether the washing process is effective depends on the quality of the circulating water. Before the circulating water, it is an important process to clarify the circulating water by reducing the particles and ash in the slime water.