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Home > News > Content
Setting Machine Increasing Oct 09, 2017

China is a textile power, more than 90% of the printing and dyeing enterprises concentrated in Zhejiang, Jiangsu, Guangdong, Fujian and Shandong and other five coastal provinces. Stereotypes machine industry development so far no matter the number of products, the number of enterprises, production and sales and market ownership have been rapid growth, Setting Machine the occurrence of dizzying changes. According to Jiangsu Wuxi Textile Association estimates that in 2010 China only stereotypes of the production has more than 1,000 units Zhejiang Province as a textile province, the number of printing and dyeing enterprises accounted for more than 25% of the total, Setting Machine as of November 2013, only Shaoxing City, Zhejiang Province, Keqiao District 238 printing and dyeing enterprises stereotypes to 1841 units. In recent years, with the printing and dyeing enterprises in the rapid expansion of production capacity, Setting Machine due to stereotypes caused by emissions of environmental complaints and pollution disputes increasing.

Printing and dyeing industry, the production process is complex, in order to improve the appearance of the product, surface properties and dyeing quality, the need to add a variety of textile auxiliaries and solvents. Textiles through the dyeing and rinsing, the need for heat-setting process, the use of the characteristics of the fabric with thermoplastic, in the stereotypes drying tenter and heat treatment, Setting Machine to achieve the purpose of stereotypes.

The temperature of the dry and hot air in the setting machine is usually controlled in the range of 120 to 210 ° C. In the process of shaping, the moisture carried by the fabric with the solvent, grease and wax and other organic compounds together with the heat and volatile, with the waste hot air discharged from the exhaust cylinder, as stereotypes machine exhaust. After the exhaust gas enters the atmosphere, Setting Machine the supersaturated water vapor and the high boiling organic vapor are condensed by the temperature drop, forming a large amount of white water mist and light blue smoke, respectively, which consists of very small particles with viscous particles ; Low-boiling organic matter in the exhaust gas, still in the form of vapor.

Dyeing and finishing machine exhaust gas containing water vapor, Setting Machine auxiliaries and solvents volatile and condensate, and fabric carrying fiber and dust, is a gas, liquid, solid three-state pollutant mixed fluid.

A large number of durable, stable white or light blue flue gas discharged from the stereotypes resulted in a decrease in the transparency and visibility of the air around the plant, which significantly affected the sensory indicators of the atmospheric environment. Exhaust gas contained in the soot particles, stable nature, insoluble in water, particle size is usually less than 1um, is an important source of PM2.5 in the atmosphere, floating in the air for a long time, easy to regional atmospheric environment caused by continuous pollution.

A large number of submicron particles in the exhaust pollutants are complex, have a strong ability to adsorb, is a variety of high boiling organic pollutants carrier; low boiling point of volatile organic compounds, is the destruction of the atmospheric ozone killer and lead to air photochemistry The main cause of smoke.