Filter bag vertical stitches must be strong, straight and shall not be less than three. Dust bag mouth loop stitches must be firm and shall not be less than two. Dust bag prevent ring flat circular stitching must be firm and shall not be less than two per side. Accumulate dust bag the bottom of the bag circular suture allows single line, but it must be sewn more than two circles. Dust bag cutting length error of plus or minus 10 mm, dust bag around the sewing needle size uniform, code shall not be less than 15 bags of longitudinal needle / 10 cm, lateral pin code is no less than 12 stitches per 10 cm; Sewing a good bag can not have holes, damage defects; Diameter greater than 200 mm, length is more than 5000 mm bag should be tested for tensile test, the elongation should comply with the requirements.
A. don't allow continuous jump line and 1 m suture in lines to jump no more than 1 needle, 1, 1;
B. no float line;
C. do not allow straight off the tao and within 1 m off no more than 1.
Dust bag application
Iron, steel, ferroalloy factory, refractory factory, foundry, power plant flue gas dust removal system, etc. Garbage incinerator, coal-fired boiler, fluidized bed boiler flue gas filter, etc. Asphalt concrete mixing, ceramic building materials, cement, lime, gypsum and other places of production. Aluminum electrolysis, lead, tin, zinc, copper and other precious metals smelting gas filtration, superfine material recycling, liquid and solid separation. Chemicals, coke, carbon black, dye, pharmacy, plastic and other fields of solid-liquid separation and superfine material recycling. Mining, food processing, flour, electronics industry, wood processing and so on collecting dust control and purification.
Dust bag according to the filter bag mainly divided into round, flat and special-shaped cross-section shape points 3 kinds.
A, circular: dust filter bag is in cylindrical. Its specifications with x length or diameter D * L (mm);
B, the sector: dust filter bag for flat shape, including the rectangle and trapezoid, its specifications with perimeter that P * * length L (mm);
C, special-shaped: specific shape filter bag, said its specifications with its structure characteristic parameters.