Refined cotton production method

Abstract

The invention relates to a refined cotton production method. The method comprises the steps as follows: S100) performing loosening and impurity removal on cotton linter; S200) conveying the material to a container; S300) adding bio-enzyme for stirring under normal pressure; S400) adding hydrogen peroxide for bleaching; S500) grinding the bleached material to remove water; S600) boiling and washingthe material in a container; S700) washing the boiled and cleaned material; S800) removing water of the material and drying the material. The advanced impurity removal and rinsing technology is completed with an integrated technology, a lot of energy required in preparation production is saved, effects on the environment are reduced, reuse and zero emission of recycled water are realized, and benefits of an enterprise can be increased.

Description

technical field [0001] The invention relates to the technical field of refined cotton, in particular to a production method of refined cotton. Background technique [0002] For many years, refined cotton has been supported by traditional technology for many years. In traditional production technology, heavy alkali has been used to remove impurities at high temperature, and chlorine bleaching technology has been used to bleach, causing environmental pollution and low economic benefits. Under the current social requirements Difficult to maintain. At present, the domestic production method of refined cotton is the traditional process of high temperature, high alkali cooking and chlorine bleaching. The production cycle is up to six hours, the energy consumption is high, the discharge is large, and the waste water contains a large amount of organic halides. Degradation is seriously harmful to the environment, and the investment in sewage treatment equipment is large, and the ope...

AI Technical Summary

Problems solved by technology

[0004] 1. Disadvantages of steps 1 and 2 in the traditional technological process: in step 1, the equipment occupies a large area, and the site construction investment is large, and a three-story concrete brick structure is required for use; in step 2, it is difficult for workers to operate, the number of personnel is large, and the equipment works slow benefit

[0005] 2. Disadvantages of step 3 of the traditional process: the cooking equipment is the caustic steaming ball of the traditional paper mill, which is a pressure vessel type equipment. In the production process, ① the amount of sodium bicarbonate used is large, which is 10-15% of the material; ② steam is required Large volume, pressure 5 kg, temperature 130°C-160°C, large consumption of steam for production; ③Long time required, low utilization rate of equipment, it takes 3-4 hours to heat up, deflate, heat up, and keep warm; ④It is difficult to degrade black liquor wastewater, high treatment costs

[0006] 3. Disadvantages of steps 4, 5, 6, 8, and 9 in the traditional process flow: ①The water consumption is large, and the water consumption per ton of material is about 250 tons, which increases the cost of sewage treatment; ②The consumption of chemical raw materials is large, which will produce acid Exhaust gas, and increase the cost of treatment

[0007] 4. Disadvantages of step 7 in the traditional process: ①The bleaching agent in the traditional process is sodium hypochlorite, which is a hypochlorite-based bleaching agent with a strong smell. The chlorine gas emitted during the production process is harmful to the human body and the environment. The bleaching wastewater contains Chlorinated dioxins must be strictly handled, and their residues also have an impact on the environment; ②In the traditional chlorine bleaching process, multiple rinsing must be carried out, and a large amount of water is used for reaction, which is not conducive to environmental protection requirements