Flocculant polyacrylamide for coal washing

2019-07-08

Flocculant polyacrylamide for coal washing

The coal that is excavated in coal mining is usually rich in some impurities and can improve the separation power of coal and impurities by participating in the flotation agent. The clean coal is floated and the tail coal is settled. The clean coal in the tail coal is then recovered by settling, filtration or centrifugation. Polyacrylamide is applied during the settling process and then promotes solid-liquid separation. It is then sent to a concentrator where it is recovered by the overflow of the concentrator and recycled. Powdered clean coal is recovered by filtration and centrifugation. In the filtration and centrifugation process, again participate in the polyacrylamide advancement power.

Polyacrylamide for coal washing is attributed to anionic type, also known as coal washing special agent. The molecular weight ranges from 8 million to 18 million. Polyacrylamide for coal washing is used to rapidly deposit coal slurry water in the concentration tank to ensure qualified washing and pressure filtration of coal slurry for efficient production and economic operation. It is necessary to select suitable flocculant to enhance the disposal of slime water.

Application of polyacrylamide in coal washing

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