浮选水质硬度对煤泥润湿性及电动电位的影响

doi:10.11799/ce201609040

Abstract

Abstract: To investigate the influence of water-hardness on fie coal wetting properties, the qualities of different water were tested, the contact angle, zeta-potential and flotation rate of fine coal particle in different water were analized in detail. The results show that the hardness of cycling water samples are much higher than the new adding water of the same plant, and the water hardness have great influence on fine coal wetting contact angle and zeta-potential concerning to particle floatability. In the same water ,the coarser particles are more hydrophobic than the finer particles,while the zeta-potential of coarse particle is lower than that of fine particles. With the increasing of water hardness,the hydrophobicity of coal particles increase ,while the zeta-potential of particle decrease, the flotation rate increase, while the selectivity reduce.

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References

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The influence of water hardness on fine coal wetting contact angle and zeta-potential

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