Working principle of bag type reverse blower :
With the structural characteristics of the bag type reverse blow dust collector is divided into positive pressure type and negative pressure type, under the action of negative pressure, the dust-containing gas enters the lower ash hopper from the air inlet pipe, and there is a baffle plate on the front of the air inlet. The dust falls into the ash bucket by impact and gravity. After filtering through the filter bag, the fine particles of dust are adsorbed on the inner wall of the filter bag. The purified gas passes through the bag filter chamber and is sucked into the fan through the exhaust pipe through the switch valve on the top of the device. Exhaust into the atmosphere through the exhaust pipe.
The dust attached to the filter bag continues to increase. When the resistance rises to the specified value, the dust removal starts. The dust removal method of the equipment relies on the single-chamber back blowing method. During the back blowing, the reversing valve is used to close the exhaust duct and open the reverse blow duct. The exhaust air of the room is because the air inlet pipes of each room of the equipment are connected and are in a negative pressure state. Due to the negative pressure suction effect of the adjacent room, the air is drawn into the filter bag room through the reverse blow pipe and penetrates the filter bag. The airflow enters the inside from the outside of the filter bag, and is sucked into the adjacent room and discharged through the ash hopper and the air inlet pipe of the chamber. At this time, the filter bag is sucked, and the dust inside the filter bag is shaken and sinks to the dust ash bucket. The cleaning of the single chamber is completed, and the remaining chambers are cleaned in the same order under the control of the cleaning executive. When it reaches a certain value, the cleaning is stopped.
Features of filter bag rows of bag type reverse blow dust collector:
1. The number of filter bags arranged 1000m2 is the number of rows in the 2W arrangement 3000-90000m2 is the number of rows in the 2W4W2 arrangement;
2.1800m2 is the number of rows in the 3W3 arrangement;
3.10000m2 is the number of rows under the arrangement of the surrounding passages;
4.W indicates the maintenance channel, the inlet temperature is 729 and 734, the temperature of polyester cloth is less than 1500 ℃;
5. The temperature resistance of the glass fiber cloth treated with three generations is less than 3000 ℃.
The purpose of the bag type back blow dust collector:
Bag type back blower is widely used in the purification and recovery of smoke and dust generated by smelting, crushing, screening and combustion in cement plants, steel plants, smelters, carbon black plants, power stations and other enterprises. , Effective equipment for reducing wear and tear of machinery and equipment, growth of crops, pollution of the social environment, and recycling of useful dust.