... boiler, waste incineration and afterbody of the kiln. The life span about three years. P84 filter bag is main used for coal ... , waste incineration and afterbody of the kiln, The life span normally can reached about three year, the dust loading less than 20 ... Mg/Nm3. The size and tyle of filter bag can do according to the customers' requirement,filter bag,dust filter bags,nonwoven filter bags