Boiler dust: the dust separated from the flue gases out of the device called dust or dust removal equipment. Boilers and boiler precipitator is commonly used in industrial production equipment. Its function is to boiler fuel combustion emissions in the flue gas to remove soot particles, thus greatly reducing the amount of soot into the atmosphere, which is to improve the environmental pollution and improve air quality in important environmental protection equipment. Pulse filter: pulse jet bag filter is in MC-I type, based on the new and improved efficiency pulse jet bag filter in order to further improve the MC-I type pulse jet bag filter, the original has been modified to change. After the MC-II type pulse bag filter retains the high purification efficiency MC-I type, the process gas capacity, stable performance, long bag life, easy operation and maintenance workload is small. dust and gas from the dust into the air inlet, the lower casing, dust-laden gas through the filter bag into the upper casing during action due to various effects of the dust filter bag is separated from the gas, the dust is adsorbed on the bag, and the gas passes through the filter bag by Venturi tube into the box from the exhaust outlet. Dusty gas purification process through the bag, with the increase of time and accumulate dust bag attached more and more, Zeng added a bag of resistance, resulting in decreasing the amount of gas through the bag. 1, using the sub-chamber to stop the wind pulse cleaning technology to overcome the shortcomings of conventional pulse dust collector and sub-room cleaning dust and strong cleaning ability, dust, high efficiency, low emission concentration, air leakage, less energy consumption, steel consumption small, small footprint, reliable, good economic returns. Suitable for recycling metallurgy, building materials, cement, machinery, chemicals, power, light industry, dusty gas purification and materials. 2, the use of sub-room to stop the wind pulse cleaning, blowing a thorough cleaning can achieve the purpose, so extend the cleaning cycle, reducing the energy consumption of cleaning, compressed air consumption can be greatly reduced. Meanwhile fatigue bag and pulse valve correspondingly reduced, thus exponentially increase the life of the bag with the valve. 3. overhaul for bags can keep the system fan in the system to normal operating conditions divided chamber. Bag pocket elastic ring up, good sealing performance, solid and reliable. Keel are polygonal bag, the bag and the keel reduce friction and prolong the life of the bag, and easy unloading bags. 4, the upper pumping bag way, when changing the skeleton out of the bag after the dirty bag into the lower hopper tank, removed from the manhole, improved operating conditions for bags. 5, box with airtight design, sealing, and check the door seal with excellent materials, production process to kerosene leak, air leakage rate is very low. 6, the inlet and outlet duct layout compact, low airflow resistance.