Rotary type ceramic membrane filtration separation technology and device

Abstract

The invention provides a rotary type ceramic membrane filtration separation technology and device. The rotary type ceramic membrane filtration separation device comprises a feeding system, a filtration system, a washing regeneration system and a deslagging system, wherein a filtration component in the filtration system is a ceramic membrane which is clamped and fixed on a hollow rotary main shaftthrough a space ring. Raw material liquid is distributed by a distributing device; and a flow disturbing rod of the distributing device is used not only as cloth but also as a flow disturbing device in a filtration process. The ceramic membrane is washed and regenerated regularly by the washing regeneration system and the deslagging system of the rotary type ceramic membrane filtration separationdevice, so that the service life of the ceramic membrane is provided. The rotary type ceramic membrane filtration separation device carries out cross flow filtration under dynamic conditions and is large in flux and high in filtration efficiency; and as the device adopts a simple assembly structure, the device is convenient to disassemble, small in floor space and easy to clean and maintain.

Description

technical field [0001] The invention relates to the technical field of membrane filtration, in particular to a rotary ceramic membrane filtration separation process and device. Background technique [0002] In recent years, with the development of the national economy, food, medicine, and new energy industries have made great progress, and their related production processes have also made significant progress. However, in the production process, milk clarification, wine filtration, traditional Chinese medicine purification, beverage concentration, and fermentation Filtration and other processes will involve filtering issues. At present, organic membrane materials are commonly used in industry for filtration and separation, from microfiltration, ultrafiltration, nanofiltration to reverse osmosis. Although organic membrane materials have good applications in water treatment, commonly used organic membrane components are basically filtered at room temperature. Separation, can ...

AI Technical Summary

Problems solved by technology

At present, organic membrane materials are commonly used in industry for filtration and separation, from microfiltration, ultrafiltration, nanofiltration to reverse osmosis. Although organic membrane materials have good applications in water treatment, commonly used organic membrane components are basically filtered at room temperature. Separation, unable to use for a long time at high temperature

In the actual process, it is necessary to cool down and filter, and then increase the temperature, which increases the energy consumption

In addition, the general filtration and separation device only obtains the product on the permeate side, and there is no suitable filtration and separation process and device for the product that needs to be concentrated

[0003] At present, the filter materials mainly include inorganic filter membranes and organic filter membranes. The existing filter separation devices use the above filter materials for static filter separation. The separation efficiency is limited, and the filter cake is easy to deposit, which affects the service life.

[0004] The ceramic membrane has good mechanical properties and corrosion resistance. Most of the ceramic membranes used today are tubular, but the filtration area of ​​a single ceramic filter tube is limited. In order to improve the flux, it needs to be used in series and parallel, and the corresponding elbows will increase. increased production costs

A rotary membrane separation device is disclosed in the patent "A Rotary Membrane Separation Device and Its Application". The device uses an organic membrane and cannot withstand repeated high-pressure backwashing, which limits its application range.

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