Hollow fiber curtain type membrane, membrane element and manufacturing method thereof

Abstract

The invention discloses a hollow fiber curtain type membrane, a membrane element and a manufacturing method thereof. The membrane element comprises a membrane fixing frame and a membrane set arrangedin the membrane fixing frame and composed of a plurality of membranes arranged in a stacked mode, and each membrane is formed by compounding a plurality of hollow fiber membrane filaments with openings in the two ends in parallel; the membrane fixing frame comprises an upper water collecting tank and a lower water collecting tank which are arranged on the outer sides of the two ends of the membrane set in a sleeving mode correspondingly, and two communicating pipes arranged on the two sides of the membrane set and used for communicating the two ends of the two water collecting tanks. The manufacturing method comprises the following steps of manufacturing the membrane, assembling a membrane, manufacturing a membrane set, namely putting the sealing connecting part of the assembled membrane into the sealing glue inner groove, pouring glue into the sealing glue inner groove, and cutting off the bottom of the sealing glue inner groove from the upper part of the sealing connecting part afterthe glue is cured, so as to obtain the membrane set, and mounting the membrane set. In the manufacturing process, waste of membrane filaments is reduced, and the production efficiency is improved; meanwhile, during use, the membrane filaments are not crossed and wound with one another, so that the water production efficiency is improved.

Description

Technical field[0001]The invention relates to the technical field of membrane element production, in particular to a hollow fiber curtain membrane, a membrane element and a manufacturing method thereof.Background technique[0002]Membrane separation is a new separation technology that appeared in the early 20th century and rose rapidly after the 1960s. Membrane separation technology has the functions of separation, concentration, purification and refining, as well as high efficiency, energy saving, environmental protection, molecular-level filtration and simple filtration process, and easy to control. It has been widely used in food, medicine, biology, environmental protection, Chemical industry, metallurgy, energy, petroleum, water treatment, electronics, bionics and other fields. Separation membrane products generally include flat membranes, hollow fiber membranes, roll membranes and so on. Membrane-bioreactor (MBR) is a new type of wastewater treatment system that combines membrane...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the high production cost caused by the waste of membrane filaments, the cumbersome intermediate process and the large consumption of human resources when the hollow fiber curtain membrane is prepared by using the existing production method; and the prepared mesoporous fiber curtain membrane The arrangement of the membrane filaments is disorderly. During actual use, sludge is easy to accumulate at the root of the membrane filaments, which affects the water production efficiency of the membrane curtain. A hollow fiber curtain membrane, membrane element and its manufacturing method are provided. During the production process, there is no need to cut off the membrane filaments that are not neatly arranged at the binding parts at both ends, which reduces the waste of membrane filaments, reduces the process of unscrambling and plugging, and improves production efficiency; at the same time, when the curtain membrane is used, the membrane filaments There is no crossing and entanglement between each other, which improves the water production efficiency

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