Solid-liquid filtering device

Abstract

The invention discloses a solid-liquid filtering device. The device comprises a filter element and a cylindrical shell; the cylindrical shell is composed of a bottom plate and a cylinder wall, and thebottom plate is provided with a hole; the filter element is arranged in the cylindrical shell, and the filter element goes through the hole and goes out of the cylindrical shell; the filter element is composed of a buffer layer, a filter layer and a protective layer from the inside to the outside, and the lower end surface of the filter element is a convex surface; and the filter layer is made ofa flexible capillary fiber material, and the buffer layer is made of an elastic hydrophobic material. A material to be subjected to solid-liquid filtration is placed in the cylindrical shell, a liquid flows to the outside of the cylindrical shell from the inside of the cylindrical shell through capillaries formed by the flexible capillary fiber material under the action of gravity, and solid matters cannot be transferred to the outside of the cylindrical shell through the capillaries, so the purpose of solid-liquid separation is achieved. The buffering effect of the elastic hydrophobic material makes the capillaries not blocked even when the capillary material absorbs water and expands, so a problem that general filtering devices using flexible capillary fiber materials are prone to be blocked after meeting water and expanding. The solid-liquid filtering device is an energy-saving solid-liquid separation device. The solid-liquid filtering device can be combined with auxiliary pressurization or vacuum pumping and other technologies to further improve the working efficiency.

Description

technical field [0001] The invention relates to the field of solid-liquid separation, in particular to a solid-liquid filtering device. Background technique [0002] Solid-liquid separation technology, including filtration technology, will be applied in many fields such as mineral processing, papermaking, medicine and health, food, environmental protection, chemical industry, biotechnology and so on. The carrier of the application of filtration and separation technology is the filtration device, and the technical level of the filtration device often affects the efficiency and results of production and research. [0003] The flexible capillary fiber material will swell when it absorbs liquid, and it will cause blockage of the capillary channel when the space is limited. The invention solves this problem by combining the flexible capillary fiber material with the elastic hydrophobic material. [0004] The filter device uses the capillary formed by the capillary fiber materi...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem that capillary tubes are blocked due to water absorption and swelling of the capillary fiber material when the space is limited when the flexible capillary fibe

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