A hollow fiber membrane spinneret
A spinner assembly and fiber membrane technology, which is applied in the field of hollow fiber membrane spinner assemblies, can solve the problems of extremely high concentricity requirements, complex processing technology, and poor process stability of the spinner assembly, so as to ensure the stability of the cortex structure and improve Base film stability, effect of improving quality and production efficiency
Active Publication Date: 2015-10-28
TIANJIN MOTIMO MEMBRANE TECH
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Problems solved by technology
[0008] At present, in the preparation process of composite hollow fiber membranes, the hollow fiber membranes are all spun downwards, and the base film and the skin layer are co-extruded or the skin layer is coated on the surface of the base film. The concentricity of the composite film has a great influence, the process stability is poor, the requirement for the concentricity of the spinneret assembly is extremely high, the processing technology is complicated, and the production cost is high
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[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0026] A schematic diagram of a hollow fiber membrane spinneret assembly of the present invention is as Figure 1-Figure 4 As shown, it includes a component main body 2, an inlay portion 5 and a flow blocking protective sleeve 10, wherein the material of the flow blocking protective sleeve 10 is heat-resistant rubber. The upper end of the component body 2 is provided with an overflow chamber 1, the interior of the component body 2 is provided with a through hole 4 communicating with the overflow chamber 1, and the side of the component body 2 is provided with a through hole 4 communicating with the through hole 4. The feed port 3 for the skin layer casting solution; the embedded part includes an embedded main body 6 and a sealing plate 7, and the central part of the embedded main body 6 and the sealing plate 7 is provided with a basem...
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The invention discloses a hollow fiber membrane spinning pack which is high in concentricity and stable in structure. The hollow fiber membrane spinning pack comprises a pack body, an embedded part and a chocked flow protective sleeve. A flash chamber is formed in the upper end of the pack body, a through hole communicated with the flash chamber is formed inside the pack body, and a surface layer casting membrane liquid feed port communicated with the through hole is formed in the side face of the pack body; the embedded part comprises an embedded body and a seal plate, and a base membrane duct is formed in the center portion of the embedded body and the center portion of the seal plate; the embedded body is embedded into the through hole of the pack body, and a surface layer casting membrane liquid flow channel is formed between the embedded body and the inner wall of the through hole; the lower end of the pack body is sealed by the seal plate of the embedded part to prevent surface layer casting membrane liquid from being leaked; the chocked flow protective sleeve is tightly arranged at the upper end of the embedded body, and an opening hole communicated with the base membrane duct is formed in the chocked flow protective sleeve; a base membrane penetrates through the flash chamber from bottom to top, and the surface layer casting membrane liquid in the flash chamber coats the surface of the base membrane in a curtain coating mode through the gravity action to form a membrane on the surface of the base membrane. The obtained hollow fiber membrane is high in concentricity and stable in structure.
Description
technical field [0001] The invention relates to the technical field of membranes, in particular to a hollow fiber membrane spinning assembly. Background technique [0002] The hollow fiber separation membrane has a self-supporting structure, the module preparation process is simple, the amplification effect is small, and it can provide a larger membrane area per unit volume. It is a very practical membrane structure. Its bulk density is higher than that of tubular membrane, and its pretreatment and maintenance are simpler than that of roll membrane. With the continuous expansion of the application field of membrane technology, the existing single-material and single-form membrane products are increasingly unable to meet the high-performance requirements of the application objects. [0003] In 1974, Henis and Tripodi invented the polysulfone hollow fiber membrane coated with silicone rubber to make a hydrogen separator capable of high pressure and large dialysis capacity, wh...
Claims
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IPC IPC(8): D01D5/24
Inventor 李洪港胡晓宇环国兰李梁梁
Owner TIANJIN MOTIMO MEMBRANE TECH