Electrocatalysis oxidation pulping method for purified cotton and production system equipment

A technology for electrocatalytic oxidation and cotton refining, which is applied in the fields of pulping with inorganic alkali, pulping of cellulose raw materials, textiles and papermaking, etc. It can solve the problems of large washing water consumption, low production efficiency and backward equipment, and achieve breakthrough technology. Bottleneck, solve the effect of energy saving and emission reduction, saving processing cost

Inactive Publication Date: 2012-03-28
扬州市江都区明月机械有限公司
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Problems solved by technology

[0003] Refined cotton production has a history of several decades in our country. Domestic refined cotton production mainly uses cotton linters as raw materials, using alkaline cooking, sodium hypochlorite bleaching (some also use chlorine dioxide or chlorine gas pipeline chlorination), pressing and flooding. However, the traditional alkaline pulping process of domestic alkaline cooking and sodium hypochlorite bleaching has the following main problems: first, the pollution is very serious, and high-temperature alkaline cooking will produce a large amount of pulping black liquor. The

Method used

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  • Electrocatalysis oxidation pulping method for purified cotton and production system equipment
  • Electrocatalysis oxidation pulping method for purified cotton and production system equipment
  • Electrocatalysis oxidation pulping method for purified cotton and production system equipment

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Embodiment Construction

[0024] Such as figure 1 As shown, the refined cotton electrocatalytic oxidation pulping production system equipment mainly consists of a cotton opener 1, a cyclone dust collector 2, a double cheek sleeve conveying pipeline 3, a compound cotton feeder 6, an impregnation machine 7, and a catalytic oxidation reactor 9 , a retention reactor 10, a screw press pulp washer 12 and a beater 14 to form a pulping system equipment.

[0025] Cotton opener 1 is existing equipment, and it loosens the compressed cotton linters bag into smaller cotton blocks or cotton bundles, so as to facilitate the smooth progress of mixing and impurity removal. The impurity removal function in this step is a cotton opener with a rake, which opens the cotton linter bale and removes part of the cotton husk during the process of opening the cotton bale; the cotton mixing function of the cotton opener is to mix cotton with different components. The linters are fully and evenly mixed to stabilize the quality of...

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Abstract

An electrocatalysis oxidation pulping method for purified cotton and production system equipment belong to the technical field of purified cotton production. The method adopts the technology that bales of cotton linter are opened by an opener and then are made into a linter quilt through a combined cotton feeding device, the linter quilt enters into an impregnating machine through double clamp belts, an on-site hydroxyl free radical active oxygen and oxygen preparing method is adopted to continuously supply a pulping agent, the linter quilt and a pulping assistant are fully impregnated and then enter into an electrocatalysis oxidized still, pulp enters into a retention reactor that is filled with steam with a certain pressure, produced half stuff enters into a replacement and washing section and an extrusion and drying stage, and purified cotton cellulose products are obtained after the drying operation. Through the adoption of the method and the production system equipment, the effects of no black liquor, resource economy and energy consumption reduction can be achieved in the pulping process; and the pulping yield is high while clean and continuous pulping can be realized.

Description

technical field [0001] The invention relates to the technical field of refined cotton production, in particular to a refined cotton electrocatalytic oxidation pulping method and production system equipment. Background technique [0002] Refined cotton is a kind of cellulose material produced by high-temperature alkaline pulping with cotton linters as the main raw material, and has the function of thickening and shaping. It is the main material for the manufacture of ether cellulose (such as CMC, HEC, HPMC, MC, etc.), nitrocellulose (nitrocellulose) and cellulose acetate, and is widely used in food, medicine, daily chemicals, plastics, electronics, papermaking , metallurgy, aerospace and many other fields, known as "special industrial monosodium glutamate". [0003] Refined cotton production has a history of several decades in our country. Domestic refined cotton production mainly uses cotton linters as raw materials, using alkaline cooking, sodium hypochlorite bleaching (so...

Claims

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Application Information

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IPC IPC(8): D21C3/02D21C3/22
Inventor 王乃忠杜俊祺
Owner 扬州市江都区明月机械有限公司
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