Water circulation equipment for maturation process in production of viscose fiber

Abstract

The invention discloses a piece of water circulation equipment for a maturation process in production of viscose fiber, and belongs to the field of viscose fiber production. The equipment comprises a water storage tank and a maturation drum, and is characterized in that the equipment also comprises a first plate type heat exchanger, a second plate type heat exchanger, a recycling water tank, a centrifugal pump and an alkaline liquor pot; the water storage tank is connected to the first plate type heat exchanger through a first water inlet pipe, the maturation drum is connected to the first plate type heat exchanger through a second water inlet pipe, the recycling water tank is connected to the first plate type heat exchanger through a return pipe, the first plate type heat exchanger is connected to the maturation drum through a water outlet pipe, the second plate type heat exchanger is connected to the recycling water tank through a first circulation pipe, the alkaline liquor pot is connected to a high temperature soft water outlet of the second plate type heat exchanger through a second circulation pipe, and a water return pipe is arranged between the second plate type heat exchanger and the maturation drum. The equipment improves utilization rate of production water and soft water, reduces consumption of steam, realizes gradient utilization of maturation drum jacket water thermal energy, and has good energy saving and environmental protection property.

Description

technical field [0001] The invention relates to the field of viscose fiber production, in particular to a water circulation device for aging processes in viscose fiber production. Background technique [0002] In the production of viscose fiber, the preparation process of the stock solution is: feeding→dipping→pressing→crushing→alkali cellulose→aging→yellowing→cellulose xanthate→dissolving and stirring→filtering→vacuumizing→viscose. [0003] Among them, the main purpose of the aging process is to reduce the degree of polymerization of alkali cellulose, thereby obtaining alkali cellulose with a uniform degree of polymerization. The aging process is mainly carried out in the aging drum. When aging the alkali cellulose, because the temperature of the alkali fiber just after pressing and crushing is relatively high, a fan is usually installed at the material outlet of the aging drum to directly send the alkali cellulose Cold air treatment achieves the purpose of cooling. The a...

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Problems solved by technology

[0006] The temperature adjustment system for the aging drum disclosed in this patent document can reduce the temperature of the alkali cellulose entering the aging drum in advance by controlling the temperature of the fan, which is beneficial to yellowing. However, the jacket water of the aging drum has not been rationally utilized, resulting in water Waste of resources and excessive steam consumption

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