Method and device for manufacturing columnar hollow fiber membrane module

Abstract

The invention belongs to the technical field of separation membranes and relates to a columnar hollow fiber membrane module manufacturing method and a columnar hollow fiber membrane module manufacturing device. The method includes steps: manufacturing of U-shaped membrane filament bundles, to be more specific, winding hollow fiber membrane filaments to form the U-shaped membrane filament bundles in required length, wherein the head of one end of each U-shaped membrane filament bundle is bent; glue injection, to be more specific, subjecting the U-shaped membrane filament bundles to single-end (the other ends of the bent heads) glue injection to form independent pouring unit bundles; assembly, to be more specific, fixing the pouring unit bundles into membrane shells (pressure type membrane modules) or membrane frames (immersed modules); glue feeding and pouring, to be more specific, directly mounting glue injection end caps at the U-shaped ends of the bent heads of the pouring unit bundles to perform glue feeding and pouring; solidifying and cutting, to be more specific, after glue solidification, cutting glue surfaces to perforate membrane filaments, so that membrane module manufacturing is finished. The columnar hollow fiber membrane module manufacturing method and the columnar hollow fiber membrane module manufacturing device have advantages that hollow fiber membrane filament utilization rate and membrane module pouring and end sealing quality in a columnar hollow fiber membrane module manufacturing process are increased, and membrane filament blockage rate is decreased; work intensity is relieved, and efficiency improvement, cost saving, simplicity and convenience are achieved.

Description

technical field [0001] The invention relates to a method for manufacturing a columnar hollow fiber membrane module and a device thereof, and belongs to the technical field of separation membranes. Background technique [0002] Membrane separation is a method of separating, fractionating, purifying and concentrating two-component or multi-component solutes and solvents by using natural or artificially prepared membranes with selective permeability, driven by external energy or chemical potential difference. Membranes and related technologies are playing an increasingly important role in nature, and their production and development are closely related to human life. Membrane and membrane process is a new type of high-efficiency separation technology in the contemporary era. It is the product of interdisciplinary research. It is especially suitable for modern industry's needs for energy saving, production efficiency improvement, low-grade raw material reuse and environmental po...

AI Technical Summary

Problems solved by technology

[0005] In the existing manufacturing process, the membrane filaments are fixed and then trimmed before the casting of the membrane modules, resulting in waste of membrane filaments and an increase in cost. In addition, due to the large filling area of ​​the hollow fiber membrane module and the large number of membrane filaments, the ends of the membrane filaments It is difficult to cut, and in recent years, a large number of high-strength membranes with linings have been used to further increase the difficulty and labor intensity of cutting; The end face of the membrane wire is broken up, and the production process is cumbersome, especially the plugging material is easy to fall off (especially when used on the membrane wire with a lining), which will cause the membrane hole to be blocked by pouring glue. After cutting, the through hole cannot be formed and the membrane area is lost. In the worst case, the accumulation of membrane filaments will lead to insufficient glue between the membrane filaments during the casting process, so that water leakage and air leakage will occur on the glue surface after cutting, resulting in irreparable losses such as degradation of membrane module performance or even scrapping.

To sum up, the existing technology is mainly due to cumbersome manufacturing process, high labor intensity, low utilization rate of membrane filament, high cost, and the product quality is greatly affected by operation and unstable.

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