Vertical type pressure filter

Abstract

The invention discloses a vertical type filter press which performs the improvement on a pipe clamp valve and a filter cloth washing device in the vertical type filter press. A locating block is arranged on a valve body inner-wall between an upper plywood and a lower plywood of the pipe clamp valve; a concave strip and a groove which are mutually corresponding are arranged at the conterminous position between a rubber hose and the upper plywood as well as the lower plywood; a travel switch locating plate is fixed on one side of an intermediate plate; a positional electric component is arrangedinside the valve body corresponding to the moving position of the travel switch locating plate. The proposal solves the status of uneven stress on the rubber hose, the status of deformation and beingimproperly closed in the rubber hose are solved, the positional electric component is utilized to return the present state of a cylinder to a PLC to achieve the automatic control purpose of the pipeclamp valve. The filter cloth washing device can control the switch of each spray-head, different water volume is chosen according to different filter liquor, a brush is utilized to brush off indelible deposit to enable filter cloth to be washed more thoroughly, and the water is saved.

Description

technical field [0001] The invention relates to a vertical filter press, in particular to the improvement of a pipe pinch valve on the vertical filter press. Background technique [0002] At present, most of the pinch valves of the vertical filter press are operated manually by using the screw to drive the upper and lower splints to extrude the rubber tube to achieve the purpose of controlling the liquid flow, and the electronic control method is also used to complete the valve switch. The filter press pinch valve is also a kind of valve. It is wear-resistant and anti-corrosion, has a simple structure, and can be used for multiple purposes. It can replace gate valves, globe valves, and regulating valves. Widely used in mining, metallurgy, pesticides, fertilizers, environmental protection, dyes and other industrial pipelines for transporting high-solid slurry and corrosive media. However, when the manual or electronically controlled pinch valve opens the rubber tube, it uses ...

AI Technical Summary

Problems solved by technology

However, the final action position of the upper and lower splints cannot be fixed, so that the force on the rubber tube is uneven, and the pressure of each extrusion of the rubber tube cannot be controlled. If the pressure is too high, the rubber tube will be permanently deformed. If the pressure is too small, the closing effect cannot be achieved. Long-term After use, it is easy to make the rubber tube not tightly closed, and the protrusion on the rubber tube is also easy to crack from the root

[0008] The Chinese patent with the publication number CN1004120B discloses a filter press, in which the filter cloth washing device uses a movable nozzle to clean each individual filter cloth. Since the nozzle can be moved, the filter cloth is cleaned relatively clean. But the hose used will crack and leak after a long time, and it takes too long to wash one by one, and the washing process cannot be automatically controlled

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