Continuous-evacuation automatic control system for crude short-fiber viscose production

An automatic control system and short fiber technology, applied in fiber processing, comprehensive factory control, filament forming processing, etc., can solve problems such as excessive variation in glue supply, precise control of process parameters, and inability to guarantee defoaming, etc., to achieve Improve efficiency, improve degassing quality, and improve the effect of continuous production capacity

Active Publication Date: 2012-06-20
YIBIN HIEST FIBER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problem of the automatic control of the entire process flow of the production of short fiber viscose collagen solution in the prior art, especially the prior art cannot guarantee the continuity of its defoaming and the precise control of the process parameters, which is very easy to cause glue supply In order to solve the problem of incomplete defoaming due to excessive variation of the quantity, a continuous defoaming automatic control system in the production of short fiber raw liquid viscose is provided to ensure the accuracy of process parameters, reduce failures and accidents, and minimize man-made Operation, convenient real-time monitoring of the entire process, to ensure the continuity of the degassing process and the quality and efficiency of degassing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The continuous defoaming automatic control system in the production of short fiber raw liquid viscose, including a defoaming glue supply pump, a continuous defoaming barrel and a defoaming glue output pump, is characterized in that it also includes an upper computer operation station for receiving and analyzing signals , the upper computer operation station adopts redundant process control software to build a redundant process control system to set up a continuous defoaming automatic control system in the production of short fiber stock solution viscose; The absolute pressure transmitter connected with the PID controller of the pressure, the steam regulating valve connected with the PID controller for controlling the degassing vacuum degree and the emptying valve are adjusted according to the degassing pressure to be 1mbar for the degassing vacuum degree; The continuous defoaming tank is also equipped with a temperature sensor and a PID controller to control the temperat...

Embodiment 2

[0034] The continuous degassing automatic control system in the production of short fiber raw liquid viscose, including a degassing glue supply pump, a continuous degassing barrel and a degassing glue output pump, is characterized in that it also includes an upper computer operation station for receiving and analyzing signals , the upper computer operation station adopts redundant process control software to build a redundant process control system to set up a continuous defoaming automatic control system in the production of short fiber stock solution viscose; The absolute pressure transmitter connected with the PID controller of the pressure, the steam regulating valve and the emptying valve connected with the PID controller for controlling the degassing vacuum degree are adjusted to be 15mbar according to the degassing pressure; the described The continuous defoaming barrel is also equipped with a temperature sensor and a PID controller to control the temperature and adjust ...

Embodiment 3

[0041]The continuous defoaming automatic control system in the production of short fiber raw liquid viscose, including a defoaming glue supply pump, a continuous defoaming barrel and a defoaming glue output pump, is characterized in that it also includes an upper computer operation station for receiving and analyzing signals , the upper computer operation station adopts redundant process control software to build a redundant process control system to set up a continuous defoaming automatic control system in the production of short fiber stock solution viscose; The absolute pressure transmitter connected with the PID controller of the pressure, the steam regulating valve and the exhaust valve connected with the PID controller for controlling the degassing vacuum degree are adjusted according to the degassing pressure to be 8mbar; the described The continuous defoaming barrel is also equipped with a temperature sensor and a PID controller to control the temperature and adjust the...

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PUM

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Abstract

The invention provides a continuous-evacuation automatic control system for crude short-fiber viscose production, which is set up by modifying and optimizing an existing automatic control system, and using redundancy process control software to set up a redundancy process control system. By controlling evacuation vacuum degree, viscose supply and viscose discharge and highly integrating a controller and a sensor to equipment through the modified continuous-evacuation automatic control system, occupation of a production site is relieved, continuous evacuation capacity and evacuation quality are improved, and continuous production is realized.

Description

technical field [0001] The present invention relates to a DCS automatic control system, more specifically, the present invention relates to a continuous defoaming automatic control system in the production of short fiber stock solution viscose. It belongs to the field of man-made fibers. Background technique [0002] Viscose preparation is one of the most important and critical processes in the whole viscose fiber production process. It is to impregnate the solid pulp to produce alkali cellulose, and then transport it to the yellowing machine through pressing, crushing and aging processes. CS2 reacts to produce cellulose xanthate, and then dissolves cellulose xanthate in lye to obtain liquid viscose. The viscose is filtered and defoamed to eliminate impurities and air bubbles, and the viscose is adjusted through the aging process. Viscosity and maturity, and finally produce the raw liquid viscose that meets the performance requirements of the subsequent process. [0003] A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D1/10
CPCY02P90/02
Inventor 董金华何戟陈小兵孙小波刘军陈景毅路小兵刘继丹
Owner YIBIN HIEST FIBER
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