Single-pipe external-compression type mechanical-circulation forced-cross flow solid and liquid-separating dynamic membrane system and device
A technology of mechanical circulation and solid-liquid separation, applied in water/sludge/sewage treatment, biological water/sewage treatment, adsorbed water/sewage treatment, etc. and other problems, to achieve the effect of short film forming time, reduced pre-coating time and low cost
A technology of mechanical circulation and solid-liquid separation, applied in water/sludge/sewage treatment, biological water/sewage treatment, adsorbed water/sewage treatment, etc. and other problems, to achieve the effect of short film forming time, reduced pre-coating time and low cost
CN101805058AActive Publication Date: 2010-08-18临沂高新城乡发展有限公司
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[0043] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0044] see image 3 , which is a schematic structural diagram of a single-tube external pressure mechanical circulation forced cross-flow solid-liquid separation dynamic membrane device of the present invention. The single-tube external pressure mechanical circulation forced cross-flow solid-liquid separation dynamic membrane device 20 includes: a tubular external pressure support body 21, a casing 22, three supports 23, a raw water inlet 24, a cross-flow return water outlet 25, A clean water outlet pipe fitting 26, two expanders 27 and diversion cone 28, the housing 22 is arranged on the outside of the tubular external pressure support body 21, and the inside of the housing 22 and the exterior of the tubular external pressure support body 21 form a water inlet chamber 29. Three brackets 23 are arranged at intervals between the tubular external pressure support bod...
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The invention relates to single-pipe external-compression type mechanical-circulation forced-cross flow solid and liquid-separating dynamic membrane system and device. The dynamic membrane device comprises a tubular external-compression type supporter with a large-hole diameter net, a shell arranged at the outer side of the tubular external-compression type supporter, a plurality of supports, a raw water inlet and a plurality of purified water outlet tubes, wherein the inner part of the shell and the outer part of the tubular external-compression type supporter form a water inlet chamber, and the supports are arranged between the tubular external-compression type supporter and the shell at intervals and are respectively sheathed with the tubular external-compression type supporter and the tubular external-compression type supporter; the raw water inlet is connected to the lower end of the shell and is communicated with the water inlet chamber; and the purified water outlet tubes penetrate through the shell and are communicated with the inner cavity of the tubular external-compression type supporter. The dynamic membrane device also comprises a cross-flow backflow water outlet which is connected to the upper end of the shell and is communicated with the water inlet chamber. The dynamic membrane device has the advantages of no waterpower blind angel, short precoating time, convenient back washing, continuous working, improved membrane flux, stable water yield and long working period.
Description
technical field [0001] The invention relates to water supply / sewage treatment technology, in particular to a single-tube external pressure mechanical circulation forced cross-flow solid-liquid separation dynamic membrane system and device. Background technique [0002] In the 21st century, water treatment membrane separation technology has become more and more widely used. Dynamic membrane separation technology, due to its relatively low investment cost, easy control of membrane fouling, and low energy consumption, has become a hot spot in current membrane research. [0003] Dynamic membrane (Dynamic membrane) can also be called secondary membrane (second membrane), which refers to a new membrane formed on the surface of microfiltration membrane, ultrafiltration membrane or large-pore support by precoating agent or activated sludge. The formation of a dynamic membrane can slow down the clogging (Block) and membrane fouling (Fouling) of the microfiltration membrane, ultrafil...
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Patent Timeline
18 Aug 2010
Publication
CN101805058A
- IPC
- C02F3/12; C02F3/28; C02F1/44; C02F1/28
- CPC
- Y02W10/10
- Inventors
- 曹达文; 罗文峰