Continuous Fermentation Technology And Equipment For Biological Degumming Water Bath And Its Popularization

Li Kun is the team leader and head of technology.

Based on the research and application of ramie degumming technology, the project innovating on the traditional ramie degumming process, relying on the original chemical degumming equipment and facilities, increases the oxygen supply and the recharge cost only when the fermentation is used, and uses the new process of inoculating and fermenting the raw linen in the original acid pond to increase the loading capacity of the linen cage. After the cage is used, the bacteria are inactivated by boiling wastewater. The comprehensive water saving is over 50%, the energy saving is over 30%, the chemical material is reduced by more than 60%, the pollutant production is reduced by more than 50%, the cost of degumming is reduced, and the yield and quality of the refined hemp are improved.

Sewage discharge reaches the first level requirement of the national comprehensive discharge standard for sewage.

Main innovation points of the project

1. the innovative process is to mix the bacteria 0.2m3 into the fermenting pot and mix it with the 32 ~33 centigrade warm water in the fermentation pot, add carbon source and helium source, and continue to fill the compressed air. Then the original cage of the cage is hoisted into the fermented pot and then fermented in water bath.

2. new development

A continuous fermentation cage suitable for biological degumming and hemp fiber water bath continuous fermentation was developed. The fermentation cage increased by 300mm compared with the common hemp cage, and increased from 1800mm to 2100mm.

Reaching 630kg, the loading capacity of 380kg increased by 66% compared with that of greenhouse fermentation, and the tightness of linen loading was ensured.

The project has successively been in Hunan Star Ma industry Limited by Share Ltd, Yuanjiang Si Xin hemp textile Co., Ltd. and Yiyang Hui Yuan.

Ltd., Hanshou Xinda Textile Co., Ltd. and Jiangxi well bamboo Biotechnology Co., Ltd. have been promoted and applied.

Over the past 3 years, 36429 tons of ramie refined hemp have been produced, and the industrialization of ramie fiber biological degumming technology has been realized. The new output value is 546 million 440 thousand yuan and the profits tax is 63 million 679 thousand yuan, and remarkable economic benefits have been achieved.

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Chou Zhenhua has been committed to the research of new technology and principle of jeans dyeing for many years. He is the technical director of the project. He is mainly responsible for the research and development of the technology of denim yarn, reactive dyestuff, wet short steaming, dyeing and finishing, cleaning and dyeing equipment, digital on-line detection and control integration technology, digital online collection system key technology research and development, modified liquid adding control technology, dyeing tank liquid balance balance water supply technology research and development, and the research and development of the antique style high-end colorful cowboy series products.

Main innovation points of the project

1. cowboy yarn coating and reactive dyestuff wet short steaming process technology, short process, realize salt free dyeing, compared with traditional cowboy yarn dyeing technology, 10000 meters through water saving 85%, energy saving more than 30%, basically realize zero discharge of waste water; denim yarn production process temperature and humidity control and salt free dyeing, enriching the variety of cowboy products.

2. independent research and development of clean dyeing equipment, digital online detection and control integration technology, digital online collection system key technology, to achieve precise temperature and humidity control technology in denim yarn production process, adding control technology of modified liquid, and water balance technology of dyeing tank.

3. development and preparation technology of unique modifiers, environment-friendly adhesives.

4. the dye is circularly distributed on the cross section of the yarn to meet the market's demand for the antique style colorful denim series products.

The project has built 1 clean and dyed yarn production lines for denim yarn. Through the implementation of this project, it can promote the synchronous development of the related textile printing and dyeing enterprises in China, and it has a positive and positive effect on the implementation of energy saving, environmental protection and cleaner production technology in the printing and dyeing industry.

In 2013, the sale of clean dyed denim fabrics was 7 million 200 thousand meters, with an additional profit of 11 million 730 thousand yuan and a tax of 5 million 570 thousand yuan.