Method for manufacturing nano-filtration membrane filter

Abstract

The invention discloses a method for manufacturing a nano-filtration membrane filter, which comprises the following steps of: 1, arranging a plurality of hollow fiber nano-filtration membranes in parallel to form a hollow fiber bundle, sealing the water outlet end of the hollow fiber bundle by using ultraviolet glue so that the ends of the hollow fiber nano-filtration membranes are filled with the ultraviolet glue, and then scattering the water outlet end of the hollow fiber bundle so that the plurality of hollow fiber nano-filtration membranes are mutually separated; 2, irradiating the water outlet end of the hollow fiber bundle by using ultraviolet rays so that the ultraviolet glue is cured; 3, wrapping the hollow fiber bundle by using a water permeable film, filling a central pipe in the center of the hollow fiber bundle, coiling the hollow fiber bundle to be cylindrical and filling the coiled hollow fiber bundle into a shell of a nano-filtration membrane assembly; 4, sealing the water outlet end and the water inlet end of the hollow fiber bundle by using sealant so that the hollow fiber bundle is hermetically combined with the shell; and 5, cropping the water outlet end of the nano-filtration membrane assembly so that the water outlet ends of the hollow fiber nano-filtration membranes are conducted.

Description

technical field [0001] The invention relates to a method for manufacturing a nanofiltration membrane filter, in particular to a method for manufacturing a nanofiltration membrane device with a total solid solubility removal rate of 80% for general water sources. Background technique [0002] In recent years, the membrane separation process, as a new type of high separation, concentration, purification, and purification technology, has been widely used in seawater purification, sewage treatment, and pure water manufacturing. Membrane separation technology is a separation method that uses a specially manufactured membrane with selective permeation performance to separate, purify and concentrate the mixture under the push of an external force. The property that a substance cannot pass through. Membrane separation technologies are generally divided into four categories: microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), and reverse osmosis (RO). Nanofiltration is...

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Problems solved by technology

[0004] In the prior art, the solidification time of the binder is long, the production efficiency is low, and after the binder is dried, it is difficult to diverge the water outlet end of the hollow fiber bundle, and it is necessary to use methods such as beating, which is not only low in efficiency, but also unsatisfactory in effect. , and will also damage the hollow fiber membrane. This method may have less impact on the processing of hollow fiber membranes with large diameters and thicker membrane layers, but this processing method will make the hollow fiber membranes with smaller diameters and thinner membrane layers more fragile. The nanofiltration membrane is broken and cannot work normally

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