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Sodium hypochlorite conveying device for viscose fiber production refining process and use method thereof

A sodium hypochlorite and viscose fiber technology, applied in the field of viscose fiber production, can solve the problems of unmonitored sodium hypochlorite addition, complicated process equipment, affecting product quality, etc., and achieves the effects of constant flow, simple process equipment, and reduced process fluctuations.

Inactive Publication Date: 2020-09-11
XINJIANG FULIDA FIBER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a sodium hypochlorite conveying device and its use method in the scouring process of viscose fiber production. The problem that the concentration is not stable and affects the quality of the product due to unmonitored

Method used

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  • Sodium hypochlorite conveying device for viscose fiber production refining process and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: as attached figure 1 As shown, the sodium hypochlorite conveying device in the refining process of viscose fiber production includes the first sodium hypochlorite storage tank 1 and at least one second sodium hypochlorite storage tank 2, hyposodium discharge pump 3, hyposodium metering pump 4 and control unit, hyposodium The liquid inlet of the unloading pump 3 is fixedly connected with the first discharge pipeline 17, and the first liquid inlet at the top of the first sodium chlorate storage tank 1 and the liquid outlet of the secondary sodium unloading pump 3 are fixedly connected with the second discharge pipeline 18 , a third discharge pipeline 19 is fixedly connected between the first liquid inlet at the top of the second sodium hypochlorite storage tank 2 and the second discharge pipeline 18, and the liquid outlet at the bottom of the first sodium hypochlorite storage tank 1 and the liquid inlet of the sodium hypochlorite metering pump 4 The first li...

Embodiment 2

[0023] Embodiment 2: as attached figure 1 As shown, as an optimization of the above embodiment, the first return line 6 is communicated with the third liquid delivery line 22 between the first liquid delivery line 20 and the secondary sodium metering pump 4 .

Embodiment 3

[0024] Embodiment 3: as attached figure 1 As shown, a second return line 5 is fixedly connected between the first return line 6 and the second liquid inlet at the top of the second sodium hypochlorite storage tank 2 .

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Abstract

The invention relates to the technical field of viscose fiber production, in particular to a sodium hypochlorite conveying device for a viscose fiber production refining process and a using method thereof. The sodium hypochlorite conveying device comprises at least two sodium hypochlorite storage tanks including a first sodium hypochlorite storage tank and a second sodium hypochlorite storage tank, a sodium hypochlorite discharging pump, a sodium hypochlorite metering pump and a control unit; and the the using method is characterized in that the control unit automatically controls the startingand stopping of a pump and the switching of a valve to finish automatic production operation. According to the device and the using method, the process device is simple, manual contact is not neededin the whole using process of sodium hypochlorite, personnel safety is guaranteed, meanwhile, a flow meter is interlocked with an automatic adjusting valve, metering monitoring and flow control are achieved, constant flow of sodium hypochlorite, stable process concentration and stable product quality are guaranteed, the sodium hypochlorite storage tanks are automatically switched, and the storagetank emptying cutoff caused by inattention of personnel is reduced, and the field process fluctuation is reduced.

Description

technical field [0001] The invention relates to the technical field of viscose fiber production, and relates to a sodium hypochlorite conveying device in the refining process of viscose fiber production and a method for using the same. Background technique [0002] In the production of domestic viscose fiber, the fiber enters the refining process after spinning, and is washed with water and desulfurized. Although the luster of the desulfurized fiber has become stronger, it still has a yellow shade in appearance, which is bright for weaving. The fibers of light-colored fabrics are still not white enough, so the fibers must be bleached. Fiber bleaching, generally using sodium hypochlorite (NaClO) or hydrogen peroxide (H 2 o 2 ), our company mainly uses NaClO for bleaching. [0003] Due to the particularity of sodium hypochlorite, it is set to maintain a normal temperature environment in the separate storage unit area. In the production at home and abroad, the process flow i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D1/14F17D3/01F17D3/18F17D5/00D01F2/06
CPCF17D1/14F17D3/01F17D3/18F17D5/00D01F2/06
Inventor 党虎孙守兵刘虎佟琳刘涛杨鹏科苏兴宝
Owner XINJIANG FULIDA FIBER CO LTD
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