1, according to the shape of the filter Bag cross section is divided into: flat bag (trapezoidal and flat shape) and round bag (cylindrical shape).
2, according to the way in and out of the wind is divided into: the lower wind out of the wind and upward wind under the wind and DC type (limited to plate flat bags).
3, according to the filter bag filtration method is divided into: external filtration type and internal filter type. Filter material fiber, there are cotton fiber, wool fiber, synthetic fiber and glass fiber, etc., different fibers woven filter material has different properties. Commonly used filter material has 208 or 901 polyester wheel flannel, the use of temperature generally does not exceed 120 ℃, through the silicon chamber resin treatment of glass fiber filter bag, the use of temperature generally does not exceed 250 ℃, cotton wool fabric is generally suitable for non-corrosive, temperature in 80-90 ℃ below the dust gas.