Forming device for hollow fiber composite membrane

Abstract

The invention discloses a hollow fiber composite membrane forming device. The hollow fiber composite membrane forming device comprises a membrane forming liquid device, a metering pump, a spray coating device, a traction device and a hollow rope, wherein the membrane forming liquid device accommodates membrane forming liquid; one end of the metering pump is connected with the membrane forming liquid device through a pipe; the spray coating device is connected with the other end of the metering pump through a pipe; the spray coating device is an annular sleeve; micropores are formed in the inner surface of the sleeve; one end of the hollow rope runs through the annular sleeve and is connected with the traction device. Through improvement on a coating process, a product has good adhesion and flexibility, the tensile strength of a membrane is as high as 300N, and the peel strength of the membrane surface can be 10kg or higher, so that the problem of filament breakage is completely avoided; because of good adhesion, the membrane surface is not peeled off in the aerating process, so that development of surface damage is effectively inhibited, rupture of membrane filaments is avoided and the using safety of the membrane filaments is improved; therefore, the hollow fiber composite membrane forming device can be widely applied to the field of water recycle.

Description

technical field [0001] The invention relates to a forming device of a hollow fiber composite membrane. Background technique [0002] In the prior art, with the continuous deepening of my country's industrialization and urbanization, a large amount of industrial and domestic pollutants are discharged into the environment, which brings more and more serious pollution to water bodies. Deteriorating water quality endangers industrial production and people's health, and increases the cost of water resources for the whole society. At present, the shortage of water resources has become an important factor restricting the economic and social development of our country. For example, China's per capita fresh water resources are only 1 / 4 of the world's average level and 1 / 5 of that of the United States. It has been listed as one of the 13 countries with poor water resources per capita in the world, and it is one of the countries with the poorest per capita water resources in the world...

AI Technical Summary

Problems solved by technology

[0005] However, due to the frequent aeration in the MBR process, the strength of the membrane filaments is usually insufficient and there are many broken filaments.

In addition, when the membrane wire is used in the sewage treatment process, sometimes small scratches, cracks, or the surface layer of the membrane will fall off from the hollow rope due to the scraping of the membrane wire by sediment, impurities, etc., thereby forming a stress concentration point and continuing to expose When the air shakes, the damage or crack will continue to expand along the stress concentration point, and finally form a rupture or broken wire, causing serious safety problems

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