Filter bag is the core part of bag filter. The filter bag is composed of the bag body sewn by the filter material and the supporting, clamp, chain, anti shrinkage ring and other accessories that play an auxiliary role. The filter bag and its accessories of the external filter bag filter are composed of Venturi tube, frame, elastic ring at the bag mouth, etc. The filter bags and accessories of the internal filter bag type dust remover mainly include the anti shrinking ring with the filter bags sewn together, the bag mouth rope, the bag cap, clamp, hanging device, etc. used for installation.
II. Classification of dedusting filter bags:
(1) classification by cross section shape.
A. round filter bag, which is cylindrical, can be divided into long bag and short bag according to different length.
B. flat filter bag, including rectangle and trapezoid.
C. special shaped filter bag, special shaped filter bag.
(2) classify according to the filtering direction of the filter bag.
A. external filter type, the dust facing surface is outside the filter bag, the dusty air flow flows from the outside of the filter bag to the inside of the filter bag, and the dust layer is gathered on the outside surface of the filter bag. The external filter type includes round bag and flat bag.
B. internal filter type, the dust facing surface is on the inside of the filter bag, the dusty air flow flows from the inside of the filter bag to the outside of the filter bag, and the dust layer is gathered on the inner surface of the filter bag. The inner filter type is generally round bag.