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- Apr 11, 2017 -

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Filters (filter) is an indispensable device on the conveying medium pipeline, usually installed in the pressure relief valve, pressure relief valve, fixed water valve, Fang Gong filter other equipment imported terminal equipment. The filter consists of a barrel, a stainless steel strainer, a sewage part, a transmission device and an electrical control part. The water to be processed after filtration of filter filter cartridge, its impurities are blocked, when cleaning, as long as the need to remove the removable filter cartridges, processing after reloading can, therefore, the use of maintenance is extremely convenient.

In ancient China, the application of filtration technology in production, ad 200 ago has been made of fiber paper. The paper was improved by Cai Lun 105. In the papermaking process, he swung the cellulose pulp into dense bamboo curtain. Water through the bamboo curtain gaps filter, a thin layer of wet pulp left on the bamboo curtain surface, dry after paper.

Most of the earliest filtration is gravity filtration, and then the pressure filtration improves the filtration rate, and then the vacuum filtration appears. The rotary drum vacuum filter invented in the early 20th century realizes the continuous filtration operation. Thereafter, various types of continuous filters appear successively. Intermittent operation filters (such as plate-box filters, etc.) can be realized by automatic operation, the filtration area is growing. In order to obtain low moisture content, the filter of mechanical press has been developed.

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