   Vacuum filters are widely used in the dewatering of concentrates in mines. At present, domestically produced vacuum filter mainly adopts filter cloth as filter medium, which generally has the disadvantages of large gas consumption, high energy consumption, low vacuum, high water content of filter cake, low output, easy wear of filter cloth and large maintenance workload. . In 1994 , a new type of vacuum filter -- ceramic vacuum filter was introduced in a mine in China , which was applied to the dehydration of zinc concentrate.
   Because of its high efficiency and low energy consumption, the machine is very popular. However, due to the high cost of equipment and the high price of spare parts, many mines can only look at the machine. In response to this situation, Yixing, Jiangsu Province, non-metallic chemical machinery plant based on domestic technology, developed htg ceramic vacuum filter made of a ceramic filter medium (ceramic filter plates) of. The mechanism is similar to that of the disc vacuum filter. That is, under the action of the pressure difference, when the suspension passes through the filter medium, the particles are trapped on the surface of the medium to form a filter cake, and the liquid flows out through the filter medium to reach a solid state. The purpose of liquid separation. The difference is that the ceramic filter plate has micropores that produce capillary effects, so that the capillary force in the micropores is greater than the force exerted by the vacuum.
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