Compressed air rapping is a type of mechanical rapping. The air pressure is generally 24.5 Pa. The pressure of the compressed air overlaps with the spring force of the spring to shake the filter bag to clean the dust particles deposited on the filter bag. Compared with mechanical rapping, compressed air rapping equipment has a small amount of maintenance and good cleaning effect, and is suitable for large smoke production. A schematic diagram of the compressed air rapping device is shown in Figure 1. Figure 1 Schematic diagram of the compressed air rapping device 1-spring; 2-compressed air inlet; 3-link; 4-filter bag holder; 5-filter bag; 6-piston; 7-vibrating cylinder The compressed air vibrating bag filter is made of φ220×3000 mm bag, and the filtering area of ​​each bag is 2 m 2 . The cooled dust-containing flue gas first enters the filter bag, and the purified gas passes through the filter bag medium into the filter bag chamber due to the negative pressure generated by the exhaust fan suction, and then the exhaust pipe enters the chimney through the exhaust fan, and The soot is blocked in the filter bag, and after being ruffled, it falls into the dust collecting bucket and is periodically discharged. The filter bag is made of polyester fiber woven "208" industrial polyester flannel, which is resistant to acid and alkali corrosion and can be used up to 170 °C. Use a bag filter to collect dust. All equipment must be inspected and tested, the temperature of the filter bag chamber is controlled at 105-140 ° C, and the negative pressure is between 490.33 and 1471.00 Pa, which is often shaken and cleaned, and the damaged filter bag is replaced in time. Cat Parts,Belt Cat,Oil Filter Cat,Genuine Original Air Filter JiLin LangYi Mechanical Equipment Company Ltd. , https://www.vxceo.com