Crawler type vacuum pumping filter

Abstract

The invention provides a crawler type vacuum pumping filter. The vacuum pumping filter comprises a frame, a pumping filtration part, and a distributing device; the pumping filtration part comprises a piece of filter cloth, a pumping filtration adhesive tape, a slide plate and vacuum pumping filtration boxes; the vacuum pumping filtration boxes are arranged below the slide plate, the pumping filtration adhesive tape is arranged on the slide plate, the filter cloth is arranged on the pumping filtration adhesive tape and is tightly attached to the pumping filtration adhesive tape, and the pumping filtration adhesive tape is opened with pumping filtration pockets and vent holes; the filter is characterized in that a layer of pumping filtration spacer screen is arranged between the filter cloth and the pumping filtration adhesive tape, wherein the pumping filtration spacer screen employs a spiral polyester screen with larger pore diameter and is fixed to the pumping filtration adhesive tape, and the width of the pumping filtration spacer screen is less than the width of the filter cloth. The filter has the beneficial effects that the pumping filtration spacer screen has a certain anti-compression capability and can support the filter cloth during vacuum-pumping, pumping filtration pockets of the pumping filtration adhesive tape are not blocked, the spacer screen has a certain thickness for increasing water passing volume, thickness of cloth is increased, pumping filtration effects are improved, normal operation of vacuum equipment is guaranteed, and usage life of equipment is prolonged.

Description

technical field [0001] The invention relates to the field of solid-liquid mixture separation, in particular to a crawler-type vacuum suction filter. Background technique [0002] The crawler vacuum filter is generally used in the dehydration of materials with relatively high viscosity and relatively large moisture. The filter part of the crawler vacuum filter is composed of filter cloth, filter tape, slide plate, and vacuum filter box. The filter cloth is closely attached to the suction filter tape, and there are suction filter tanks and vent holes on the tape. When the vacuum filter box generates a vacuum, the moisture in the material will be absorbed into the suction filter tank of the tape through the filter cloth and discharged to the water collection through the air holes. tank, so that the moisture in the material is filtered out. [0003] In actual production, when the material is viscous or the moisture is high, the vacuum degree will increase. At this time, the fil...

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Problems solved by technology

[0003] In actual production, when the material is viscous or the moisture is high, the vacuum degree will increase. At this time, the filter cloth will be absorbed into the suction filter tank of the suction filter belt, and the suction filter tank of the suction filter belt will be blocked. It will affect the suction filtration capacity, reduce the dehydration effect of the material, slow down the suction filtration speed, reduce the output, increase the load of the vacuum pump, and easily damage the vacuum pump and vacuum pump motor

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