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There are several reasons for the breakage of the filter cloth in use, and Xiaxhua is simple.
1, improper installation of filter cloth: A, in the installation process, storage and bag cage irregular, resulting in cloth or bag cage through extrusion deformation confusion; B, cloth and filter cloth will not cause long-term friction between cloth and panel, resulting in damage to the filter cloth between the vertical cloth; C, the injection tube is skewed, the blowing or injection pressure is too high, and the frequency is too high, which is easy to produce ring bags, bags, and even damage to the head and body separation bags.
2, washing sand filter cloth is mainly used in air filtration and removal of dust, dust collection powder, to purify the air, protect the environment, in smelters, chemical plants, sugar, dyes, medicine, food and other industries. The extension of the life of sludge filter cloth filter bag and the reduction of cleaning times reduce the maintenance cost of equipment. According to the nature and particle size of the sludge, the filter cloth that can effectively intercept the sludge particles when it is filtered is selected, mainly for the pore size of the filter cloth and its water permeability (air permeability). Poor equipment manufacturing: A. bag cage rough processing, such as rust, welding scars, burrs, welding, etc., will accelerate the mechanical wear of the filter cloth; B. Flower plate deformation, can not meet the 2/1000 flatness requirements, and even uneven deformation phenomenon, which leads to the verticality of the bag cage is not guaranteed, resulting in the collision between the bottom of the filter cloth and the elastic steel ring of the filter cloth mouth is also easy to cause damage, so that the installation and sealing of the filter cloth can not be guaranteed, resulting in air leakage and damage to the filter cloth; C. There is a deviation of the flower plate hole, when the flower plate also has a deviation of 2-3mm, the filter cloth can not be installed in place, which will cause the dust of the filter cloth or the filter cloth and the flower plate hole to fall off, resulting in the bag filter can not run.
3, the temperature of the dust removal equipment is unstable: a, the higher the temperature of the flue gas, the faster the chemical reaction, the more sensitive to oxidation and other chemical reaction filter materials, in such operating conditions easy to damage, so that its service life is greatly shortened. When the dust removal equipment is running, the temperature must always be kept above the joint. If the temperature falls below this limit, water vapor in the flue gas will concentrate. The concentrated water vapor mixes with the dirty soot to produce a corrosive acid dew. The corrosion of filter cloth or pulp bag leads to the shortening of the life of filter cloth or the improvement of the resistance of dust removal equipment, which will seriously make the dust collector unable to work. c, dust temperature effect, smoke and sparks often burn filter cloth.
4, filter filter cloth material selection is unreasonable: A, commonly used polyester filter material and aramid filter material is the most prone to hydrolysis reaction of the filter material, the higher the moisture content and temperature in the gas, the faster the damage caused by hydrolysis, in the working conditions containing water or humidity, it is not appropriate to use this filter material; B, commonly used polypropylene filter media and polyphenylene sulfide filter media are easy to be oxidized, when containing
Changzhou Xiahua Environmental Protection Technology Co., Ltd. specializes in the production and operation of industrial filtration materials for many years, mainly in the chemical industry, and the products are exported to many countries. Xiahua mainly produces the filter cloth, filter bag, pressure filter bag, etc., Xiahua filter cloth, use heart!