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Application method for membrane

A technology of high-speed rotation and membrane device, which is applied in the field of membrane application, and can solve the problems of separation of unremovable sediment and concentrated liquid, limiting the concentration of discharged liquid, etc.

Inactive Publication Date: 2007-11-28
杨时英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this technology only achieves the removal of sediment on the membrane surface by increasing the cross-flow velocity, it cannot consciously separate the removed sediment and concentrated liquid in the retained liquid, thus limiting the increase in the concentration of the discharged liquid.

Method used

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  • Application method for membrane

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Embodiment Construction

[0008] The high-speed rotating membrane device drives the filtrate to rotate at high speed to form a centrifugal force field, and the suspension enters the high-speed rotating membrane device from 12 suspension inlets.

[0009] The filtrate first enters the retentate part 14, and after settling and separating the filtrate at a relatively clear small radius, it is introduced into the filtrate part 13 through the deflector 11, and then passes through the membrane element 4. Pushed by the pressure formed by the difference, permeation is formed on the membrane surface of the membrane element 4, and the clear liquid that permeates the membrane surface is collected at the clear liquid part 15 in the membrane module 3, and is transported to the clear liquid tank 6 by the connecting pipe 10, Then the clear liquid suction pump 7 is sucked out and discharged through the clear liquid pipe 16. The position of the clear liquid suction pump 7 and the pressure in the clear liquid pipe 16 cont...

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Abstract

The present invention discloses an application method of membrane. In the high-speed rotary membrane equipment it utilizes the pressure difference formed by different liquid levels in the centrifugal field and does not external pump, and can form permeable pressure of membrane and flowing force of filtrate, and under the action of centrifugal force it can make membrane surface retain clean, and can raise discharge concentration of trapped liquor.

Description

Technical field: [0001] The invention relates to a film application technology. Membrane as a separation, concentration, purification and purification process has been applied in petrochemical, light industry, textile, food, bioengineering, medicine, seawater desalination, environmental protection and other fields, but due to the pollution problems of various membranes in use , limiting the use of the membrane in a wider range. Therefore, the control of membrane fouling and the improvement of the discharge concentration of the retentate have become the key technologies in the field of membrane application technology. Background technique: [0002] At present, in order to solve the problem of membrane fouling, cross-flow technology is usually used as the main operation mode. When the pollution is serious, intermittent backwashing or chemical cleaning methods are used to restore the flux of the membrane. The characteristic of cross-flow technology is that there is a relative...

Claims

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Application Information

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IPC IPC(8): B01D61/00B01D65/00
Inventor 杨时英杨蔡婷
Owner 杨时英
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