application of polyacrylamide in the mining industry

2019-04-03 14:42:11 admin 0

Anionic PAM enhances the concentration of ore pulp and clarification of water in the ore dressing plant, and improves the hydraulic conveyance concentration of tailings and the utilization of backwater. Polyacrylamide is a water purification flocculant. At the same time, it is also a beneficiation aid. It can accelerate the speed of solid-liquid separation in beneficiation wastewater, increase the recovery and utilization of minerals, increase yield, and reduce the effect of beneficiation wastewater. Environmental pollution.
    Effects of beneficiation wastewater treated with polyacrylamide: 1, increase the reuse rate of wastewater treatment; 2, useful metal recovery in wastewater; 3, reduce wastewater discharge.
    Anion polyacrylamide with a molecular weight of 1000-1400 was used to conduct experiments on the beneficiation wastewater, and it was found that the experimental effect was obvious. Cationic polyacrylamide is rarely used in the beneficiation wastewater. It is only used in a few minerals under acidic conditions, and most of them are anionic flocculants. The price of anionic polyacrylamide is much lower than that of cationic polyacrylamide. More applications of anionic polyacrylamide.
    Copper ore: Copper ore slurry from the flotation cell enters the concentration tank for further sedimentation. At this time, flocculant is added to promote rapid sedimentation and clarification of overflow. The clarified overflow will be used as circulating water, and the remaining concentrated tailings will enter the centrifuge for centrifugal dehydration. At this time, anionic polyacrylyl is added;
    The bubbles (concentrates) filled with copper ore are mechanically separated from the overflow, and then concentrated and dehydrated. At this time, anionic polypropylene is added to improve the efficiency of sedimentation and filtration. The resulting concentrate contains nearly 25% to 35% copper, which is then enhanced by high temperature metallurgy.

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