Reciprocating rotation type feed liquid and film separation method and device

Abstract

The invention discloses a reciprocating rotation type feed liquid and film separation method and a reciprocating rotation type feed liquid and film separation device. The device comprises a feed liquid barrel, a hollow revolving shaft, a rotating disc, a film component and a driving mechanism, wherein the feed liquid barrel is provided with a feed liquid inlet and a discharge hole; the hollow revolving shaft is rotationally arranged in the feed liquid barrel and provided with a liquid outlet; the rotating disc is fixed on the hollow revolving shaft; the film component is fixed on the rotating disc and rotates synchronously along with the rotating disc; the driving mechanism drives the film component to rotate positively and negatively in a reciprocating way; and the positive rotation speed and time of the film component are the same as negative rotation speed and time. The film component rotates positively and negatively in a reciprocating way, so that the speed gradient of a feed liquid flow field on the surface of the film is increased, the shearing stress of liquid is effectively enhanced, film pollution and concentration polarization can be constrained remarkably, flux depression of the film is delayed remarkably, better feed liquid separation effect and higher efficiency are achieved, film cleaning frequency can be reduced and running cost is lowered. The method and the device can be applied in various fields such as bioengineering, medicaments, foods, beverages and waste water treatment and the like.

Description

technical field [0001] The invention relates to the technology in the field of membrane separation, in particular to a reciprocating rotary material-liquid membrane separation method and device applicable to multiple fields such as bioengineering, medicine, food, beverage and wastewater treatment. Background technique [0002] In recent years, the application of membrane separation technology in the fields of bioengineering, medicine, food, beverage and wastewater treatment has developed rapidly. However, how to reduce the influence of membrane fouling and concentration polarization and delay the attenuation of membrane flux is still a problem. One of the main problems in the development of membrane separation technology. [0003] Although the development of high-performance membrane materials has reached a very high level, under the premise of the performance of the existing membrane materials, starting from the membrane separation operation process and equipment to strengt...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the deficiencies existing in the prior art, and its main purpose is to provide a reciprocating rotary feed-liquid membrane separation method and device, which can effectively solve the problem of feed-liquid and membrane separation when using membrane separation technology for feed-liquid filtration and separation. Synchronous rota

Images