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On-line pipeline deaeration device and deaeration process

A line-type, pipeline technology, applied in spinning solution degassing, spinning solution filtration, fiber treatment, etc., can solve problems such as inability to realize online continuous spinning operation, adverse effects on physical and chemical properties, unsatisfactory degassing effect, etc. , to achieve the effect of low cost, guaranteed quality and high defoaming efficiency

Inactive Publication Date: 2012-11-14
ZHEJIANG CREATION ENVIRONMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defoaming device and defoaming process of the existing spinning solution, the defoaming time is long, the physical and chemical properties of the formed product are adversely affected, the defoaming effect is not ideal, and the online continuous spinning operation cannot be realized. The present invention Provide a pipeline online degassing device and degassing process with low cost, simple operation, high degassing efficiency, no adverse effects on the physical and chemical properties of formed products, and no time spent on degassing

Method used

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  • On-line pipeline deaeration device and deaeration process

Examples

Experimental program
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Effect test

Embodiment 1

[0020] A pipeline on-line degassing device, as attached figure 1 As shown, it includes a material tank 1 , a feed valve 2 , and a discharge valve 3 . The outer surface of the bottom of the material tank 1 is provided with an ultrasonic transducer group 4 , and the ultrasonic transducer group 4 is connected to an ultrasonic generator 5 . The top of the material tank 1 is provided with a vent valve 6, the spinning solution entering the material tank 1 from the feed valve 2 forms the lower feed liquid layer 7, and the gas entering the material tank 1 from the vent valve 6 forms the upper gas layer 8. The top of the material tank 1 is provided with a window 9 and a pressure gauge 12, and the window 9 is used to observe the height of the material liquid layer 7 below. The side wall and the bottom wall of the material tank 1 are of double-layer structure, and the interlayer 10 formed by the double-layer structure is passed into a temperature-controlling liquid. as attached figure...

Embodiment 2

[0024] Using the same device and method as in Example 1, the temperature-controlling liquid is heat-conducting oil, and the ultrasonic transducer groups 4 are 2 groups, and each ultrasonic transducer group 4 includes 4 ultrasonic transducers, so The ultrasonic frequency of the ultrasonic generator 5 is 40K, the ultrasonic power is 100W, and it is used for the spinning solution with a viscosity of 10000cP.

[0025] The polyethersulfone hollow fiber membrane is prepared by a wet method using the above-mentioned defoaming device: turn on the oil heating, and set the temperature of the material tank 1 to the required temperature of 90 degrees Celsius for spinning. Connect the ventilation valve to the normal pressure atmosphere, open the ventilation valve 6, turn on the ultrasonic generator 5, use a group of ultrasonic transducer group 4, open the feed valve 2, and observe the height of the feed liquid in the material tank 1 from the window 9, Until the liquid level reaches the pre...

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Abstract

The invention relates to the technical field of solvent spinning and particularly relates to an on-line pipeline deaeration device. An ultrasonic transducer group is arranged on the outer surface of the bottom of a material tank, a ventilation valve, a viewing window and a pressure gauge are arranged at the top of the material tank, the side wall and the bottom wall of the material tank are in a bilayer structure, and temperature controlling liquid is fed into the material tank. The invention also discloses an on-line pipeline deaeration process. The process comprises the steps of preheating the material tank, starting an ultrasonic generator, feeding materials in the material tank, leading nitrogen into the tank, stopping nitrogen leading, performing ultrasonic deaeration, discharging the materials, observing the height of the spinning solution after a period of time, discharging gases and the like. According to the device and the process, on-line pipeline deaeration is achieved, no time is used for deaeration separately, the device can be connected to an existing material liquid pipeline directly, an existing production line is changed a little, the ultrasonic deaeration is performed, no chemical substance is added, the cost is low, the process operation is simple, and the deaeration efficiency is high.

Description

technical field [0001] The invention relates to the technical field of solution spinning, in particular to a pipeline on-line defoaming device and a defoaming process. Background technique [0002] In the spinning forming process, if there are a small amount or even a small amount of air bubbles in the spinning solution, the formed fibers are easily damaged or broken at the bubble point, which directly affects the product quality. Necessary steps of the process. At present, the degassing processes for spinning solutions mainly include: static degassing, high temperature degassing, centrifugal degassing, chemical degassing, vacuum degassing, and separate degassing of the melting tank, etc., but the above processes have the following problems : Static defoaming, the degassing time is long, the continuous spinning operation can not be realized online, for the spinning solution with high viscosity, the effect of standing defoaming is not ideal; high temperature degassing, long ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D1/10
Inventor 赵辉张星星
Owner ZHEJIANG CREATION ENVIRONMENT TECH
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