Frame type rubber diaphragm press filter

Abstract

The invention discloses a frame type rubber diaphragm press filter. A plurality of groups of press filtering units which are connected in sequence are arranged between a compression plate and a thrust plate on a rack, and are rubber filtering frames and frame type rubber diaphragm filtering plates which are connected; charge holes in the middle parts of the filtering plates are provided with support cloth clamping devices; the frame type rubber diaphragm filtering plates are provided with rubber core plates; rubber cells are compounded on the left and right surfaces of the rubber core plates; seal empty cavities are formed between groove bottom plates of the left and right rubber grooves and the corresponding plate surfaces of the rubber core plates; gas inlets and outlets of the seal empty cavities are formed in the lateral edges of the frame type diaphragm filtering plates; bulges are uniformly distributed on the bottom parts of the grooves of the frame type diaphragm filtering plates; the support cloth clamping devices are provided with tooth meshed type rapid connecting rings the left and right ends of which are connected with support pipes by screws; the distance between openings of the left and right support pipes is equal to the thickness of each press filter unit; opening grooves are uniformly distributed in the support pipe openings. The volume of the filter chamber is large; the seal property among the plurality of groups of press filtering units is good; in press filtering, the filtering plates or the frame type filter plates are difficult to deform; the squeeze dehydration performance is good.

Description

technical field [0001] The invention relates to a diaphragm filter press, in particular to a filter unit of the diaphragm filter press. Background technique [0002] As a device for liquid-solid separation of suspensions, filter presses are widely used in chemical, mining, pharmaceutical, food, smelting and other industries. [0003] The filter press has a frame, and the frame has a main beam in the longitudinal direction. On the frame, there is a hydraulically driven pressing plate at one end of the main beam. On the frame, there is a thrust plate at the other end of the main beam. The filter press device is a plurality of sets of filter press units connected in sequence. [0004] In the prior art, filter presses include plate and frame filter presses and chamber filter presses. [0005] The filter unit of the plate and frame filter press is a connected filter plate and filter frame. The filter plate is a rectangular flat plate and the filter frame is a rectangular frame....

AI Technical Summary

Problems solved by technology

[0015] 2. The filter chamber composed of the filter unit of the plate and frame filter press is in the filter frame, and the filter chamber composed of the filter unit of the box filter press is in the tank. The volume of the filter chamber is not very large, and the single processing capacity smaller;

[0016] 3. There is no axial support between the middle feed holes of adjacent filter press units, and the filter plate or box filter plate is easily deformed during filter press;

[0017] 4. The material and structure of the membrane filter plate or box-type membrane filter plate are unreasonable, the cost is high, the polypropylene membrane has no elasticity, and the performance of extrusion dehydration is not very good

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