Long pulse bag filter bag is mainly composed of a cabinet, the cabinet, ash bucket, ash unloading system, consisting of several parts injection systems and control systems, and using lower air intake sub-chamber structure. Flue dust from the air inlet through the lower portion of the casing into the ash bucket; some of the larger dust particles due to inertia collision, natural subsidence and other effects directly into the hopper, the other with the air of dust rise into each bag house. After filtering through dust bag, dust particles are retained on the outside of the bag, the purified gas from inside the bag into the box, and then through the poppet valve, the outlet into the atmosphere. Hopper dust regularly or continuously by a screw conveyor and rigid impeller unloader unloading. As the filtering process, the outside of the dust bag attached to the increasing volume, causing the bag filter itself resistance is gradually increased. When the resistance reaches a predetermined value, the cleaning controller signals, the first to make a bag house poppet valve closed to cut off the gas flow to the filter chamber, and then open the electromagnetic pulse valve. Compressed air from the air nozzle air bag order by the pulse valve, injection tube to a very short time (0.065 to 0.085 seconds) injected into the bag. Compressed air inside the fast-growing, high frequency vibration deformation of the bag, along with the role of Shangni airflow, the outer bag attached dust cake deform off. After full consideration of the dust settling time (to ensure that the dust can effectively fall off the hopper), the poppet valve is opened, the bag house filter bag to return to the state, while the lower chamber into the bag of the cleaning state, and so on until the last room is a bag cleaning cycle is completed. LPC long bag pulse bag filter is composed of a plurality of separate chambers, each chamber when cleaning in order respectively, do not interfere with each other, to achieve long-term continuous operation. Said cleaning process by the cleaning timing controller or constant pressure automatic control. Long bag pulse jet bag filter is a new generation pulse bag dust removal technology, is the introduction of digestion and absorption of Australia Mai Dike flue gas treatment company, Choate power engineering companies and energy companies advanced hammer force low pressure long bag pulse dust removal technology.