Common causes of filter cloth damage 40 common fracture reasons in use

1, filter cloth is installed properly: a, during the installation process, storage and cloth cage is irregular, resulting in extrusion deformation; B, cloth and filter cloth do not cause cloth and panel, resulting in damage to the filter cloth The vertical cloth between the long-term friction; C, the injection tube skew, the blow or injection pressure is too high, easy to produce a loop bag, packaging bag, and even damage to the head and body separation bag.

  2. The washing filter cloth is mainly applied to air filtration and removal of dust, dustpage, to purify the air, protect the environment, in the smelter, chemical plant, sugar, dye, pharmaceutical, food and other industries. The latency of sludge filter bags, the decrease in the number of cleaning, making equipment maintenance costs. For the sludge properties and particle size, the filter cloth that can effectively intercept the sludge particles can be met when it is filtered, mainly for the aperture size of the filter cloth and its water permeability (gas permeability), and the like. Poor equipment manufacturing: a. Bag coarse processing, such as rust, welding, glitch, welding, etc., can accelerate the mechanical wear of the filter cloth; b. Flower plate deformation, can not meet 2/1000 flatness requirements, or even appear Uniform deformation, this causes the vertical degree of the bag cage to be guaranteed, resulting in a collision between the bottom of the filter cloth and the fuselage elastic steel ring, making the filter cloth installation and sealing failure, resulting Damage to the wind and filter cloth; C. The flower bore has a deviation. When the flower disc also has 2-3 mm deviation, the filter cloth cannot be installed in place, which causes filter cloth dust or filter cloth to fall off, causing the bag dust collector to operate.

3, the temperature of the dust removal equipment is unstable: A, the higher the flue gas temperature, the faster the chemical reaction, the more sensitive to the chemical reaction filter material such as oxidation, and it is easily damaged under such operation conditions, so that the service life is greatly shortened. Dust removing equipment must always be kept above the joints at runtime. If the temperature is lower than this limit, the water vapor in the flue gas will concentrate. The concentrated water vapor will be mixed with dirty soot and produce corrosive acid. Corrosion of the filter cloth or slurry bag, resulting in shortening the life of the filter cloth or increases the resistance of dust removal equipment, which will seriously make the dust collector. C, dust temperature, smoke and sparks often combustible filter cloth.

4, the material of the filter cloth filter material is unreasonable: A. Commonly used polyester filter materials and aramid filters are films that are most likely to hydrolyze the reaction, the higher the water content and temperature, the faster the damage caused by hydrolysis. Under working conditions containing water or humidity, this filter material should not be used; B, commonly used polypropylene filtrate and polyphenylene sulfide filter is easily oxidized, and this filter is not suitable when the oxygen content is greater than 15%. material. The C, glass fiber filtrate is applied to the dust purification environment containing fluorless gas, and the destruction is faster.

Some suggestions and measures to prevent damage to filter cloth

A. The number of skeleton stands should be based on the material material of the filter material, it should be smooth, flat, no hair defects, the intensity is sufficient, and the verticality is in line with the industry standard, which matches the filter cloth.

B, the plate is flat, the surface of the plate is smooth, and there is a large safety distance between the plate holes and the sheet wall and the plate holes to prevent the panels and the skeleton tilt, resulting in a collision between the filter cloth, so that the filter cloth Wear.

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!