Water washing system, water washing method and application of solvent-process regenerated cellulose membrane

A technology of regenerated cellulose film and cellulose film, applied in cleaning methods and utensils, cleaning methods using liquids, cleaning methods using tools, etc., can solve the problems of low washing efficiency, large water consumption, high energy consumption, etc., and achieve The effect of reducing washing energy consumption, reducing usage, and increasing operating speed

Active Publication Date: 2019-06-28
山东中科恒联生物基材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the gradual enrichment of low-concentration aqueous solutions is achieved, the washing efficiency is low and the water consumption is large
In order to improve the washing efficiency, a washing temperature of 80-93°C is usually used, resulting in higher energy consumption

Method used

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  • Water washing system, water washing method and application of solvent-process regenerated cellulose membrane

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] like figure 1 As shown, a water washing system for solvent-based regenerated cellulose membranes includes several washing tanks 4 connected in sequence. Adjacent washing tanks 4 are connected by overflow structures, and the overflow directions between the washing tanks are the same. A cellulose film conveying device is arranged inside, and the conveying direction of the cellulose film is opposite to the overflow direction between the washing tanks; the outlet of each washing tank 4 is equipped with a scraper 2 and a spraying device.

[0033] The overflow structure can be an overflow weir or an overflow pipe 6. When the overflow structure is an overflow weir, the overflow weir is set at the set height of the side wall of the washing tank 4. When the liquid level in the washing tank When the set height is reached, clear water flows into t...

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Abstract

The invention discloses a solvent-method regenerated cellulose membrane washing system and washing method and application. The washing system includes a plurality of washing grooves connected in sequence. The adjacent washing grooves are connected with each other via an overflow structure. The overflow directions of the washing grooves are identical. The washing grooves are inside provided with a cellulose membrane conveying device. The conveying direction of the cellulose membrane is opposite to the overflow directions of the washing grooves. The outlet of at least one washing groove is equipped with a scrapper and a spray device. The method includes steps of 1, admitting water into the last washing groove and enabling water to overflow forward from the last washing groove to the first washing groove; 2, putting the prepared cellulose membrane into the first washing groove for washing and then washing the cellulose membrane in the second washing groove after being scrapped and sprayed at the outlet of the first washing groove; 3 completing the whole cellulose membrane washing process according to the method in step 2. According to the invention, water consumption can be reduced effectively and washing efficiency is improved substantially.

Description

technical field [0001] The invention relates to a water washing system, a water washing method and an application of a solvent method regenerated cellulose membrane. Background technique [0002] Under the current severe environmental protection situation, although the application of regenerated cellulose film is becoming more and more widespread, the traditional viscose process used in industrial production is difficult to develop because of the lengthy and complicated production process, high consumption and heavy pollution. The new process of using direct solvent to prepare regenerated cellulose membrane has the advantages of cleanness and high efficiency, and is worthy of industrial development. 1-allyl-3-methylimidazolium chloride (AmimCl) ionic liquid is one of the most effective direct solvents for cellulose. After dissolving cellulose with AmimCl solvent, it is prepared by coagulation, film formation, water washing, and plasticization. Cellulose film. Due to the hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B3/08B08B3/10B08B3/12B08B1/02B08B3/02B08B13/00
CPCB08B1/005B08B1/02B08B3/022B08B3/08B08B3/10B08B3/123B08B13/00B08B2203/007
Inventor 李瑞丰张军贾锋伟余坚张晓煜武进邱金江张金明张东光崔增亮王德坤王新
Owner 山东中科恒联生物基材料有限公司
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