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Preparation method of hollow fiber membrane based on PTFE

A fiber membrane and hollow technology, which is applied in the field of PTFE-based hollow fiber membrane preparation, can solve the problems of uneven fiber membrane strength, lower production quality of the device, and easy wrinkling of the device during winding, so as to avoid uneven incision and good tension degree, not easy to clean the effect

Pending Publication Date: 2022-02-01
冯志坤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for preparing hollow fiber membranes based on PTFE, which solves the problem that the produced fiber membranes are prone to uneven strength, and secondary damage is easily caused during the stretching and collection process, and the device The inaccurate positioning of the collection causes the device to easily wrinkle when it is rolled up, which reduces the production quality of the device

Method used

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  • Preparation method of hollow fiber membrane based on PTFE
  • Preparation method of hollow fiber membrane based on PTFE
  • Preparation method of hollow fiber membrane based on PTFE

Examples

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Effect test

Embodiment 1

[0039] see Figure 1-5, the present invention provides a technical solution: a method for preparing hollow fiber membranes based on PTFE, comprising a fixed frame 2, a controller 1 is fixedly connected to the middle position of the top outer wall on the right side of the fixed frame 2, and the top of the fixed frame 2 The middle position on the right is provided with a driving body 3, and the top of the fixed frame 2 is fixedly connected with a blocking frame 4 at both sides of the driving body 3, and a processing device 5 is arranged at the middle position on the left side of the top of the fixed frame 2. The top is communicated with feed pipe 6.

[0040] Wherein, the processing device 5 includes an isolation cylinder 51, a compression mechanism 52 is arranged at the middle position of the inner cavity bottom of the isolation cylinder 51, a transition piece 53 is arranged on the top of the compression mechanism 52, and a processing mechanism 54 is fixedly connected to the top...

Embodiment 2

[0045] see Figure 1-5 , On the basis of Embodiment 1, the present invention provides a technical solution: a method for preparing hollow fiber membranes based on PTFE, step 1: install the equipment, and connect the fixed frame 2 to the power supply, and pass The driving body 3 drives the processing device 5 to perform internal processing;

[0046] Step 2: Through the guide hopper connected between the auxiliary housing 55 and the processing mechanism 54, the raw materials are collectively aligned and delivered, and the transition piece 53 is used to communicate the processing mechanism 54 with the compression mechanism 52, and the raw materials are conveyed vertically;

[0047] Step 3: Use the sealing ring 522 to seal the feeding port of the conveying cylinder 521, and connect the lifting body 523 to the conveying cylinder 521, so as to automatically contact and fix the accommodating block 524, thereby performing cycle molding inside the circulation cylinder 525 ;

[0048] ...

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Abstract

The invention discloses a preparation method of a hollow fiber membrane based on PTFE. The system comprises a fixed rack, and a controller is fixedly connected to the middle position of the top of the outer wall of the right side of the fixed rack. A driving body is arranged in the middle of the right side of the top of the fixed rack, and blocking frames are fixedly connected to the positions, located on the two sides of the driving body, of the top of the fixed rack. A processing device is arranged in the middle of the left side of the top of the fixed rack, and the top of the processing device communicates with a feeding pipe. The invention relates to the technical field of hollow fiber membranes. According to the preparation method of the hollow fiber membrane based on the PTFE, the auxiliary shell is tightly connected with the isolation cylinder, so that the sealing performance of the device is effectively improved; and the compression mechanism and the processing mechanism can be communicated through the arrangement of the transition piece, so that the precision of internal transmission is guaranteed, and the problems that the raw materials are adhered to the interior of the device during transmission, and the shell is not easy to clean are avoided; meanwhile, tension degree of fiber membrane collection is convenient to adjust, and the problems that the cut line of fiber membranes are uneven is avoided.

Description

technical field [0001] The invention relates to the technical field of hollow fiber membranes, in particular to a method for preparing a hollow fiber membrane based on PTFE. Background technique [0002] Hollow fiber ultrafiltration membrane is a kind of ultrafiltration membrane. It is the most mature and advanced technology in ultrafiltration technology. The hollow fiber tube wall is covered with micropores. It can reach thousands to hundreds of thousands. Ultrafiltration is a dynamic filtration process. The intercepted substances can be removed with concentrated water without clogging the membrane surface. It can run continuously for a long time. Ultrafiltration membrane is one of the earliest developed polymer separation membranes, but The output fiber film is prone to uneven strength, which is easy to cause secondary damage during the stretching and collecting process, and the inaccurate positioning of the device collection leads to easy wrinkling of the device during wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/26B01D69/08B01D67/00B01D61/18
CPCB01D71/26B01D69/08B01D67/0002B01D61/18
Inventor 冯志坤
Owner 冯志坤
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