Hollow fiber membrane spinneret device

Abstract

The invention discloses a hollow fiber membrane spinneret device. The device comprises a flow guide module, core liquid flow control modules, material liquid flow control modules and independent spinneret bodies, wherein the flow guide module comprises a flow guide base, a core liquid flow guide plate and a material liquid flow guide plate, the independent spinneret bodies penetrate through mounting holes formed in the material liquid flow guide plate and core liquid cavities formed in the core liquid material guide plate, and the independent spinneret bodies are coaxial with the mounting holes and the core liquid cavities. According to the device, the structure is simple, the operation is convenient, each spinneret hole can be independently controlled, core liquid and material liquid flowwell, the production assembly difficulty is reduced, maintenance and replacement of single spinneret can be realized when a problem occurs, the maintenance time and material cost are reduced, the multi-head expansion is very convenient, the modular, customized, flexible production of products of different specifications is realized on the same equipment at the same time, and breakthrough improvement in production efficiency is promoted.

Description

technical field [0001] The invention relates to the technical field of hollow fiber membranes, in particular to a hollow fiber membrane spinning device. Background technique [0002] Hollow fiber membrane is the core component of equipment in the fields of water treatment, hemodialysis, and gas separation. It is an important new material used in microfiltration membranes, nanofiltration membranes, and ultrafiltration membranes. Separation and other fields have gradually been more and more widely used. With the improvement of the quality and performance requirements of hollow fiber membranes and the increase of demand, the existing domestic production processes and equipment are becoming more and more difficult to meet the production needs, and most of them rely on imports. How to produce high-performance hollow fiber membranes, improve production efficiency, and reduce production costs has become one of the hottest and most critical issues in the field of research on hollow...

AI Technical Summary

Problems solved by technology

[0009] 1. When multi-head expansion is performed on multiple independent spinnerets with multiple efficiency, the design and production requirements for the flow channel module are very high, and the consistency requirements of the holes are difficult to achieve, and the qualified rate of the product will fluctuate greatly due to the influence of production parameters. Large, low qualified rate; after the hollow fiber membranes with poor consistency are assembled into a membrane group, the water filtration area of ​​the membranes per unit volume will be greatly reduced, and the flux will not meet the design standards; in addition, the ring design The feeding trough may cause residual agglomeration of the feed liquid, which is not easy to clean and will affect the repeated use of the product

[0010] 2. Inconvenient cleaning and maintenance, waste of downtime, waste of a lot of raw materials and labor costs; there are abnormalities in the production line, often need to stop for maintenance

[0011] 3. It is not possible to individually control each outlet hole, so that the production process cannot be adjusted and optimized, etc.

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