Application of Polyaluminium Chloride in Wastewater Treatment of Mineral Processing Industry

It is well known that the flotation method is a good method in the beneficiation with the highest enrichment ratio and the highest ore dressing grade. However, since it needs to add certain chemicals in the beneficiation, the discharged wastewater is polluted and cannot be treated. Friends in many mineral processing industries have almost faced such a flaw. The waste water after the flotation has not been discharged due to pollution problems, and the environmental protection department has to be strict with this problem and has to give up the flotation method. Faced with this trouble, Huaquan will help you solve it, so that you can rest assured that your concentrator will handle the sewage problem.

For example, in iron ore beneficiation process, after the first original ore crushed to a reasonable degree of fineness through the hoist to the mining machine uniformly pulverized ore into a ball mill, grinding. The ore fines ground by the ball mill enter the next process: classification. The classifier cleans and classifies the ore mixture by virtue of the difference in the specific gravity of the solid particles and the rate of precipitation in the liquid. The washed and graded mineral mixture separates the magnetic material in the mixture by magnetic force and mechanical force when passing through the magnetic separator because of the different specific magnetic susceptibilities of the various minerals.

The mineral particles that have been initially separated by the magnetic separator are sent to the flotation machine, and different drugs are added according to different mineral characteristics, so that the desired minerals are separated from other substances. In the process of iron ore beneficiation, a large amount of tailings slurry will be produced. These muds have certain safety hazards and can cause environmental pollution. Iron ore mud water is a suspension liquid containing a certain amount of fine mud particles in water, which has a certain viscosity and is difficult to stratify when left standing for a long time. Polyaluminum chloride is a water-soluble polymer, when mixed with the muddy water, since they have a bridging, netting, and the adsorption and electrical functions, muddy water can destroy the stability of the mud The particles quickly condense and settle from the water to achieve the mud-water separation effect. If used in conjunction with dewatering equipment , the tailings are flocculated by polyaluminium chloride, and after dewatering by dewatering equipment, the tailings slurry can be dry, dry or comprehensively utilized.

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