Rotating cross-flow flat ceramic membrane separation turntable

Abstract

The invention relates to a rotating cross-flow flat ceramic membrane separation turntable, which comprises a hollow central shaft, a support component fixedly arranged on the hollow central shaft, a plurality of flat ceramic membrane components supported by the support component and a driving mechanism for driving the hollow central shaft to rotate, wherein each flat ceramic membrane component comprises a hollow cavity type flat ceramic membrane; each hollow cavity type flat ceramic membrane comprises two separated surface membrane layers; a plurality of liquid collection accommodation cavities and liquid outlets are formed around the hollow cavity type flat ceramic membranes; a plurality of cavities are formed in the hollow cavity type flat ceramic membranes. According to the turntable, a flat ceramic membrane filtering technology is adopted, the characteristics of strong strength, convenience in high-pressure back washing and the like of the ceramic membranes are fully utilized, and the application fields of a rotating cross-flow membrane separation technology are well extended.

Description

technical field [0001] The invention belongs to the field of membrane separation devices, in particular to a rotary cross-flow flat ceramic membrane separation turntable. Background technique [0002] In recent years, with the rapid development of membrane separation technology, from microfiltration, ultrafiltration, nanofiltration to reverse osmosis, it has been widely used in sewage treatment, drinking water purification, seawater desalination, industrial separation and other fields. At present, the preparation technology of membrane materials (including polymer organic membranes and inorganic membranes) is quite mature, but the industrial application of membranes is relatively backward. For example, the membrane components of flat membranes and hollow fiber membranes of polymer materials are static. Cross-flow filtration is formed by aeration; inorganic tubular membranes mainly rely on pumps to increase the flow rate of the liquid to be treated to form cross-flow filtrati...

AI Technical Summary

Problems solved by technology

For example: A rotary membrane separation device is disclosed in the patent "A Rotary Membrane Separation Device and Its Application". The patented equipment uses a flat polymer membrane, which greatly improves the anti-fouling ability of the membrane. The disadvantage is that the flat organic membrane cannot withstand High-pressure backwashing limits the range of application of this technical equipment

A rotating membrane separation device is disclosed in the patent "A Fan-shaped Rotary Membrane Separation Device". The main disadvantage of the hollow fiber membrane used is that the hollow fiber membrane is easy to be fouled and the membrane filament is easy to break

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