Pulse type bag filter model PPC air box pulse bag filter working principle

1PPC air boxPulse bag filterproductOverview

The PPC series offline pulse bag filter is developed by Shiheng Company based on the introduction of advanced foreign technology,PPC air box pulse bag filter is the top planning force of Shiheng dust collection. It is designed to meet the high dust processing capacity and high concentration dust removal needs of modern industrial users. Based on the original pulse dust collector, an improved high-efficiency pulse bag filter is planned.It absorbs the advantages of various types of dust collectors such as chamber blowback and pulse jet cleaning, overcomes the disadvantages of insufficient kinetic energy intensity during chamber blowback and the simultaneous formation of "re adsorption" during pulse jet cleaning and filtration. It adopts a high-energy offline dust cleaning method, which has the characteristics of high dust cleaning intensity, long filter bag service life, high dust collection efficiency, and high filtration wind speed, thus greatly improving the performance and range of the dust collector.

IIPPC gas box pulse bag dust collectorworking principle

 Under the action of the main fan in the system, the dusty gas enters the pre collection chamber from the inlet of the dust collector, and the dusty airflow is blocked Under the impact of the board, it turned and flowed into the ash hopper. At the same time. The flow rate slows down due to inertia and the self weight of the dust, resulting in coarser particles of dust Directly press into the ash hopper and discharge from the ash discharge mechanism, playing a role in pre collecting dustOther lighter and finer dust particles flow upward with the airflow and adsorb onto the outer surface of the filter bag. The filtered clean gas passes through the filter bag and enters the upper box, where it is collected and discharged through the air outlet pipe. The dust in the ash hopper is periodically or continuously discharged by the conveying and discharging devices. As the filtration process continues, more and more dust accumulates on the outer surface of the filter bag, and correspondingly, the operating resistance of the equipment gradually increases. In order to ensure the normal operation of the system, the upper limit of the dust collector resistance is usually maintained within the range of 1200-1600Pa. When this limit is exceeded, the dust cleaning controller will issue a timed or fixed resistance command, or manually perform three state dust cleaning.

  This dust collector adopts a circulating chamber offline dust removal method, and its dust removal process is initiated by a signal from the dust removal controller, which first activates one Close the lift valve of the bag chamber to cut off the filtered airflow of the chamber, and then open the pulse valve in a very short time（Spray compressed air at 0.4-0.6Mpa into the chamber within 0.1s-0.2s. Compressed air rapidly expands inside the box, causing high-frequency vibration and deformation of the filter bag. In addition, the reverse airflow causes the dust cake attached to the surface of the filter bag to deform and fall off. After fully considering the settling time of dust, the lift valve is opened, and this chamber enters the filtering state again. After a certain time interval, the next chamber is offline cleaned of dust. By circulating and cleaning the dust room by room in this way, not only is the cleaning thorough, but it also avoids the secondary dust generated by spraying and cleaning the dust.

IIIPPC gas box pulse bag dust collectorApplication field

 PPCSeries dust collectors can be widely used _Grinding, crushing, and packaging in cement plants Industry series such as installation, storage roof, grate cooling machine, etcUnified dust removal, due to its structural design Features, it can also handle high concentrationsVarious dust containing gases (up to 1000g/Nm ³ or more) can be directly used as supporting finished product recycling equipment for vertical mills, O-sepa powder separators, etc. In addition to the cement industry, the PPC series dust collector can also be used for flue gas dust removal in industries such as machinery, electricity, chemical, and metallurgy.