Hebei Jiuzhou Environmental Protection Co., Ltd.

ddd -r dd/ - ---d -d<-/ Coated needle punched felt bag
>Polyester needle punched felt is made by non-woven needle punching process and heat setting and other processing methods. It is widely used in industry Dust capture and smoke control, etc. It has good air permeability. After heat treatment, the surface is flat and smooth, not easy to deform, and easy to clean. The water-repellent and oil-repellent treated polyester needle felt filter material has water-repellent properties and can be used in smoke and dust with high moisture content or a small amount of oil to prevent bagging and extend the service life. Coated polyester needle felt
>Dust removal bag
>The surface of the filter material is compounded with a layer of microporous polytetrafluoroethylene film, which has the characteristics of smooth surface, water-repellent and breathable, easy to clean, high filtration efficiency and operation Low resistance, low energy consumption and long service life truly realize surface filtration.
ddd -r dd/ - ---d my country's self-developed and synthesized polyphenylene sulfide fiber has been successfully produced by several manufacturers and has been used in boiler flue gas purification of coal-fired power plants and has achieved good results. This has ended the situation where my country’s fiber is completely dependent on imports. In recent years, my country has been able to produce polyphthalimide fibers on a large scale, and its performance indicators have basically reached the level of foreign products. The R&D company has also established a production base with full-scale large-scale production capabilities from polyphthalimide synthesis to final products. The products have been put into industrial trials on dust collectors. The performance and product quality of fiber pulse single-machine dust collector bags have been further improved and their applications are becoming more and more widespread. Domestic pure needle felt filter bags have been successfully used in many fields, including waste incineration flue gas purification, to significantly extend the life of them. Domestic aramid fiber for dust collector bags basically occupies the domestic market. The production technology and performance of ultra-fine glass fibers have also made certain progress. Using glass fiber tank kiln drawing production technology, special sizing agent, and three-stage zone sampling signal synchronous control leakage plate temperature control technology to produce continuous fiber diameters reaching the world's advanced level and widely used in high-temperature filter bags. The usage of sea-island fiber, ultra-fine surface layer needle felt or gradient structure needle felt increases. This type of pulse single-machine dust collector bag has high dust collection efficiency and is conducive to dust removal and becomes a surface filter material. Compared with membrane-coated filter media, its surface layer is stronger. The coated high-precision filter material independently developed in China is made of needle-punched ultra-fine fibers with a fineness of . Uniform pores have higher porosity, and the collection effect of fine particles is equivalent to that of film-coated filter media. Domestic film-forming and coating technology has been greatly improved. Many companies have hot-melt coating technology and equipment, and the quality of film-coated filter materials is closer to that of foreign advanced products. It is worth mentioning that the understanding of the advantages and disadvantages of membrane-coated filter materials is more profound, and the selection is more rational and follows the principle of maximizing strengths and avoiding weaknesses. The varieties of needle felts made by mixing two or more fibers are increasingly used in many industries including blast furnace gas. This composition allows different fibers to use their advantages to compensate for their respective shortcomings and thereby improve the performance of the filter material. Breaking through the difficulty of incoordinating the textile properties of two different fibers, the hybrid fiber woven filter material, which is made by twisting fiber yarns and glass fiber yarns together, makes up for the shortcomings of glass fiber that is not resistant to folding and wear. It is used in kiln heads and kilns in the cement industry. There are more and more applications in tail gas and waste incineration tail gas treatment. Several companies in the industry already have world-class needle punched felt and spunlace felt production lines. The spunlace process uses the forward and reverse effects of extremely fine high-pressure water columns to hook the fibers together to form the fiber. Spunlace felt has almost no pinholes and the smooth surface of the filter material is conducive to surface filtration and reduction of emission concentration. The spunlace process can avoid mechanical damage to the fibers, which is beneficial to improving product strength and extending service life, and can reduce the amount of fiber, which is beneficial to reducing the cost of filter materials. Filter bag production generally uses three-needle machines for sewing. Many companies are equipped with automatic sewing production lines, and there are also a few manufacturers with thermal fusion equipment. More and more companies are learning from the advanced bag sewing technology of developed countries, and the quality of filter bags has been comprehensively improved throughout the entire production process from cutting to sewing to inspection and packaging.
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ddd -d/ - ---d:Customer case: Jinan Jiulongshan Cement Factory->
Shandong Baoshan Sheng Building Materials Co., Ltd.->
Jigang Refractory Materials Factory->
Xiamen Liming Machinery Manufacturing Co., Ltd.
ddd -d/ - ---dShandong Dongchang Cement Factory
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Qinghai Huaqiang Cement Building Materials Co., Ltd.
ddd -d/ - ---dNingxia Zhongjie New Materials Co., Ltd.
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