High temperature bag dust removal technology

At present, the most serious areas of fine particulate matter pollution in the world are North Africa and China's North China, East China and Central China. The average annual concentration of fine particles in most parts of China is close to 80 μg/m3, which is about the safety value specified by the World Health Organization. Eight times the average of 10 micrograms per cubic meter, the air pollution situation is severe. Data show that China is the largest source of industrial pollution PM2.5, in which cement manufacturing, coal-fired power plants and steel metallurgy is industrial pollution in the three major killers.

China Powder Network News In mid-October, the smog shrouded the capital again and again, and it was repeated. In the parent group of a kindergarten, Ms. Lin, a mother of a 5-year-old child, was worried and constantly asking: “Is the fog so serious, is there any air purifier in the classroom?” In the end, she got a positive answer and got a solace. . Although as an adult, she clearly understands that there is a truth behind the nesting.

At present, the most serious areas of fine particulate matter pollution in the world are North Africa and China's North China, East China and Central China. The average annual concentration of fine particles in most parts of China is close to 80 μg/m3, which is about the safety value set by the World Health Organization. 8 times 10 micrograms per cubic meter, the air pollution situation is severe.

The data show that China's current industrial pollution is the largest source of PM2.5, among which cement manufacturing, coal-fired power stations and steel metallurgy are the three major killers of industrial pollution sources.

Governing PM2.5, industrial dust removal is a key link that cannot be ignored. Then, how to improve industrial dust removal technology, through technical means to ensure production, but also reduce dust emissions, has become a key issue in the prevention and control of air pollution.

“Bag dust removal technology is an effective way to prevent air pollution and reduce industrial soot emissions. High-temperature filter materials using high-tech fiber as the substrate are the key to the application of bag dust removal technology.” Cao Xuejun, deputy director of the Consumer Products Industry Department of the Ministry of Industry and Information Technology in October In the middle of the "China Textile International Technology Forum - the development and application of high temperature bag dust removal technology" said.

The so-called bag type dust removal is to use a filter bag made of fiber filter material to purify the gas. Among various dust removing devices, the bag type dust collector is one of the high dust filtering efficiency, and the dust removing efficiency of almost all dusts in the general industry may reach 99% or more.

"China is the world's largest country using fossil energy. With the development of electric power and cement industry, Chinese enterprises have also begun to implement European standards in the international market. The emission standards of enterprises are strict and the accountability is great." Nanjing Jihua 3251 Special Xia Qianjun, general manager of Equipment Co., Ltd. believes that "the advancement of high-temperature bag dust removal technology comes from huge demand."

Liu Jingxian, director of the Northeastern University Filter Materials Testing Center, told reporters that the performance of filter materials produced by domestic enterprises has been comparable to that of foreign brands, but the product stability is poor. At the same time, there is a lack of industry self-discipline and low-price competition.

According to reports, as the organizer of China Textile Science and Technology Forum, China Textile Science Research Institute has undertaken the construction of a high-temperature bag dust filter material development and application public service platform supported by the Ministry of Industry and Information Technology, aiming at the production and application of filter bags. Provide common services such as quality evaluation of filter bags, development of new filter materials technology, and recycling of used filter bags. With the advancement of platform work, it will play an important role in achieving healthy and sustainable development of the high temperature filter material industry.

In the industry, it is recognized that the filter material is the "heart" of bag dust removal technology. The popularity of bag-type dust removal technology has led to an increase in the demand for textile materials for textile bags. The original textile filter materials cannot meet the increasing technical demands.

“In the past five years, the average annual growth rate of the filtration and separation textile industry has reached 14.7%, and major breakthroughs have been made in key products and technologies such as gradient filter materials, microfiber filter materials, polytetrafluoroethylene, and foam coatings. The bag type dust removal technology realizes that the fine particle dust emission concentration is less than 10 milligrams per cubic meter, and even reaches the ultra-clean emission level, the filter bag life reaches more than 4 years, and the proportion of the dust removal application of the coal-fired power plant bag is increased from 10% to more than 20%. Li Lingshen, vice president of the China National Textile and Apparel Council and president of the China Industrial Textiles Industry Association, concluded.

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