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A method and system for recycling waste glue in viscose production

A glue and viscose technology, which is applied in the fields of rayon recycling, chemical instruments and methods, neutralization water/sewage treatment, etc., can solve the problems of increasing the pressure of environmental protection treatment and waste of viscose, so as to reduce the pressure of environmental protection treatment and reduce production Effects of cost and usage reduction

Active Publication Date: 2021-03-23
YIBIN GRACE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In the traditional production process, the second and third waste water are collected and returned to the sodium hydrogen sulfide solution in the production system for recycling, while the waste glue obtained from the filter cloth, viscose nozzle and component washing is directly outside The discharge enters the environmental protection treatment system, and the discharged cleaning water contains some viscose, which increases the pressure of environmental protection treatment and the waste of viscose

Method used

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  • A method and system for recycling waste glue in viscose production
  • A method and system for recycling waste glue in viscose production
  • A method and system for recycling waste glue in viscose production

Examples

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Embodiment 1

[0033] Refer to attached figure 1 , 2 , a method for recycling waste glue in viscose production, belonging to the field of viscose production, including a method for recycling waste glue with a viscosity of 50 to 70 mPa.s and a method for recycling waste glue with a viscosity less than 50 mPa.s;

[0034] Said viscosity is 50~70mPa.s waste glue recycling method,

[0035] Collect waste glue with a viscosity of 50-70mPa.s. The waste glue comes from the cleaning water of filter cloths, nozzles and components. The temperature of the process environment is controlled at 18-22°C, and then placed in the collection tank I7 to obtain the collected liquid. 1; the collection liquid I in the collection tank 17 is input into the sedimentation type separator 8 again, and the sedimentation type separation machine 8 is 5000r / min operation with the rotating speed, the collection liquid I is separated, and the solid impurities and the collection liquid II are obtained. The solid impurities are...

Embodiment 2

[0042] Compared with Embodiment 1, the difference between this embodiment is that the sedimentation separator 8 separates the collected liquid I at a speed of 6500 r / min.

Embodiment 3

[0044] Compared with Example 1, this embodiment differs in that the filter device III 10 is a filter device III 10 with a filtration precision of 50 μm, and the filter device IV 11 is a filter device IV11 with a filtration precision of 25 μm.

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Abstract

The invention discloses a method and a system for comprehensive utilization of waste viscose water in viscose production, and belongs to the technical field of production of viscose short fibers. Themethod and the system are characterized in that the obtained waste viscose water can be separately treated according to viscosity in a cleaning device; the waste viscose water with viscosity smaller than 50 mPa.s is simply filtered and neutralized, and then is used for replacing fresh water to primarily wash a spray head and an assembly; the waste viscose water with viscosity of 50 to 70 mPa.s isseparated and filtered by a precipitating type separator and a filtering device, and is directly used for preparing the viscose, so that the usage amounts of water and viscose raw material for viscoseproduction can be reduced, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of viscose production, and in particular relates to a method and system for recycling waste glue in viscose production. Background technique [0002] "Energy consumption" is an important indicator to evaluate the comprehensive competitiveness of an enterprise in today's era. Every enterprise regards "energy saving and consumption reduction" as the foundation of its own survival, and starts to reduce costs bit by bit, and realizes it with the best technology and management. Maximize energy saving benefits. In the production process of viscose staple fiber, a large amount of high- and low-concentration waste glue is discharged. In the traditional viscose staple fiber production process, a large amount of filter devices such as cleaning plates and frames are used, which wastes water resources and puts greater pressure on environmental protection in the later stage; if Direct sewage discharge will increase the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F13/02C02F9/04
CPCC02F1/001C02F1/66C02F9/00C02F2001/007C02F2301/08D01F13/02Y02P70/62
Inventor 李殿洪黄艺陈建伟周阳李元江庞拥军
Owner YIBIN GRACE
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