In the daily operation of the dust filter bag, since certain changes occur premise runs, or thrown some fault, it will affect the normal function of the operating condition and work equipment, to regularly inspected and appropriate regulatory purpose is to extend filter bag life, lower power consumption and recovery of useful materials In the daily operation of the dust filter bag, since certain changes occur premise runs, or thrown some fault, it will affect the normal function of the operating condition and work equipment, to regularly inspected and appropriate regulatory purpose is to extend filter bag life, lower power consumption and recovery of useful materials. Problems should be aware of are: 1 .Using record Each dust accessories ventilation systems should be equipped with the necessary installation and testing instruments, in the daily operation schedule determined necessary, and properly record down, which according to the system pressure, inlet and outlet temperature of the kiss, the main motor voltage and current values and the determination to change, and timely discharge failure to ensure their normal operation. Discovered by record title are: the work of cleaning bodies, bag of condition (damaged, paste bags, clogging and other issues), as well as changes in the system air volume and the like. 2. Fluid resistance U-type pressure meter can be used to determine the operating conditions: such as pressure increased, which means the bag thrown clogged, water vapor condenses on the bag cleaning agencies fail, resulting in excessive fouling clogged hopper bag, gas flow rate increase and so on. The reduced pressure means that a bag thrown broken or loose, clogging the inlet side pipe or valve closed. Leaks, slow down the fan speed, etc. between the various sub-cabinet or room.