Flame retardant filter bag, AR-21 gel silicon-based gradient super resistant, PPS dust filter bag, P84 dust filter bag, PTFE dust filter bag, PTFE+PPS dust filter bag, PTFE+P84 dust filter bag, polyester dust filter bag, acrylic coated dust filter bag, Flumes dust filter bag, NOMEX (Metas), integrated filter bag for dust removal and denitrification, etc.

Different industries and factories use different dust removal filter bags. First of all, we have to analyze which bags are commonly used. The materials of dust removal filter bags include normal temperature type cloth bags, medium temperature type cloth bags, and high temperature filter cloth bags. Different types of cloth bags have different characteristics. Normal temperature type cloth bag: The main material of normal temperature type cloth bag is made of polyester, polypropylene, acrylic and other fiber materials through non-woven and textile technology. Medium temperature type cloth bag: The medium temperature filter material includes aramid fiber and PPS series fiber through impregnation, waterproof, oil-proof and anti-corrosion process, so as to achieve the ideal filtering effect. High temperature cloth bag: The high temperature cloth bag is mainly made of high temperature resistant fiber materials such as P84, expanded glass fiber, and ultra-fine glass fiber. The use of dry filter bag dust removal technology in blast furnaces has been successful in purifying gas, and the over 5,000 cubic meters of extra-large blast furnace gas in Shougang, Wuhan Iron and Steel and Baosteel all use dry pulse filter bag dust removal technology for operation. The blast furnace gas is dry purified by the filter bag dedusting technology, which replaces the previous two-stage venturi wet dedusting technology. Its outstanding advantages are that it can save 30% of the total investment, save 50% of land, save 200kg/t iron, save more than 70% of electricity, and greatly improve the quality of gas after the water content and dust content are greatly reduced, which can be used for power generation. Or other use, the thermal efficiency is significantly improved. It can also reduce the number of workers and greatly reduce the amount of soot and waste water. If the blast furnace gas is purified by the dry filter bag dust removal technology, it will save more than 80 million tons of water and reduce nearly 80 million tons of wastewater discharge. The dust filter bag configured by the bag filter used for blast furnace gas purification is made of Nomex needle-punched felt in foreign countries. In China, high temperature resistant dust removal filter bags made of glass fiber and aramid fiber are used.

P84 Characteristics Continuous operating temperature/instantaneous temperature °C, dry heat state: 240/260 Abrasion resistance: good Spinnability: Excellent Hydrolysis resistance: good Alkali resistance: general Organic acid resistance: very good Mineral acid resistance: very good Antioxidant: very good

According to the analysis of the corrosion results of the PPS filter bag, there are three main sources of corrosion: oxidation, sulfur trioxide and nitrogen dioxide. 1. S—H2SO4 (sulfur trioxide) S in the flue gas forms SO2 and then becomes SO3 by oxidation. In the presence of water vapor, sulfurous acid vapor and sulfuric acid vapor or aerosol will be formed and condensed on the PPS filter bag to form dilute sulfurous acid and dilute sulfuric acid. With the passage of filtration time and the increase of temperature, the water in dilute sulfurous acid and dilute sulfuric acid is volatilized and gradually converted into concentrated sulfuric acid with strong oxidizing property, which oxidizes and corrodes the PPS filter bag and makes the PPS filter bag ineffective. 2. NO2 (nitrogen dioxide) Strong oxidants can directly oxidize and corrode the PPS polymer chain, resulting in chain scission of the PPS polymer chain. In the presence of water vapor, nitric acid vapor will be formed to condense and oxidize PPS on the filter bag, and at the same time, in the presence of concentrated sulfuric acid and a catalyst, a nitrification reaction will occur. 3. O3 (oxidative) Strong oxidizing property, it can directly oxidize and corrode PPS, resulting in a sharp decrease in the strength of the fiber filter bag. At the same time, O3 also has the ability of desulfurization to remove S in the PPS molecule. Anhui Yuanchen Environmental Protection Science and Technology Co., Ltd. ("Yuanchen Technology" for short) is a high-tech enterprise integrating R&D, production and sales of dust removal bags and denitration catalysts. Dust removal bags (mainly PPS, PTFE, P84 and composite series filter materials) and SCR denitration catalysts have been widely used in cement, steel, glass furnaces, waste incineration power generation, biomass power generation, non-ferrous metal smelting and other industries! In the future, Yuanchen Technology will be guided by "becoming a guardian of the global ecological environment", always rooted in environmental protection, and adhere to the great cause of protecting the blue sky and white clouds. Leveraging the national ecological civilization construction pattern, continuously deepening technology, optimizing management, strengthening brand, refining industry, consolidating advantages, and creating synergistic value for the industry through comprehensive management and services.

In places with explosive dust (such as coal mining fields, metal powder processing, flour mills, etc.), under certain conditions, sparks, open flames, and even deflagration or explosions may occur. Therefore, the flame retardant or fire resistance of the filter material is very important, which can effectively prevent the danger. Yuanchen Technology combines the strengths of "physics and chemistry" and combines graft copolymerization, sol-gel and supercritical drying methods to develop Xingyuan Fire-retardant filter material, which can meet the requirements of different flame-retardant occasions. Xingyuan·Fire-retardant filter material is divided into two series - fire-retardant series and fire-resistant series. Xingyuan∙ Flame Retardant series filter material can directly resist the collision of sparks. After leaving the flame, it can self-extinguish immediately, and will not continue to burn or smolder. Xingyuan∙flame retardant series filter media combines grafting, flame retardant modification and membrane permeation treatment. The flame retardant performance of filter media is improved by grafting technology (such as filter media and styrene sulfonate graft copolymerization), and the performance of flame retardants is improved by adding siloxane additives and nanoparticles to conventional flame retardants. The flame retardant filter material was prepared by membrane permeation treatment. The limiting oxygen index of Xingyuan·flame retardant series filter material is about 30, and the flame retardant grade is B1. Xingyuan·Fireproof series filter media can directly resist flame burning. It adopts layer-by-layer self-assembly and in-situ sol-gel technology to cover the surface of the filter material with an intumescent fireproof layer, thereby forming a physical fire barrier, isolating The external flame erodes into the filter media. In order to further improve the fireproof performance, nanoparticles containing fluorine and silicon can be infiltrated into the fireproof layer. The limiting oxygen index of Xingyuan·Fireproof series filter material is higher than 35, and the flame retardant grade is Class A. Yuanchen Technology's flame-retardant-fire-retardant technology can be applied to different types of fibers. Xingyuan·Fire-retardant and flame-retardant series filter materials can effectively deal with various working conditions that generate sparks and sparks, escort the safe and stable operation of dust collectors, and create new products for customers. more value.

As early as the early 20th century, scientists used statistics to analyze the relationship between the diameter and quantity of dust in industrial areas: for dust with a diameter of ≤3um in the atmosphere, it only accounted for 30% of the total weight of dust, but the quantity accounted for 99.9%. When ordinary filter materials filter dust, they mainly rely on mechanical blocking such as Brownian motion, interception, inertial collision, and gravity sedimentation. Yuanchen Technology advocates innovation, adheres to the principles of high efficiency, low resistance and low carbon, focuses on market demand, makes full use of the company's product development capabilities, and uses advanced corona-nano grafting and cross-linking technology to independently develop e-dust fluorine green. Electret filter. At present, the electret composite filter material of Yuanchen Technology is mainly prepared by corona discharge method. The functional nano-tourmaline hybrid emulsion independently developed by Yuanchen Technology makes its nanoparticles cross-linked to the filter material through the "physical"-"chemical" effect. After the surface of the fiber, corona electret treatment is performed to form a high-efficiency and low-resistance filter material. Compared with the traditional dipping or blade coating process, Yuanchen Technology's nanoparticle treatment technology has stronger adhesion to the fiber surface, uniform charge density everywhere, and good depth consistency of charge burial, which is more conducive to the improvement and extension of filtration performance. life cycle.