The external filter type chamber back blowing bag type dust removal equipment technology cooperates with the high level monitoring technology to realize the “zero bagging rate” of the filter bag.
The external filter chamber back blowing bag type dust removal technology adopts the micro pressure cleaning method. It is characterized by the clearance between the filter bag and the bag cage, and the net smoke after the induced draft fan is the reverse blowing gas source. The pressure difference between the cleaning dust is low (about 2000~ 5000Pa), off-line cleaning time is longer (about 5-14 seconds). The net flue gas back blowing bag dust collector mainly consists of an air distribution device, a dust chamber, a filter assembly, a net gas chamber, a rotary blow-back cleaning mechanism and other auxiliary equipment.
Compared with other pulse cleaning methods, the micro-pressure cleaning method has the advantages of high filtration accuracy and good air permeability retention of the filter bag. However, the most attractive advantage is that in the bag-breaking rate, this technology matches a high level. Monitoring technology can achieve “zero bagging rate” of filter bags. The technology comprehensively adopts the air distribution optimization technology, large-particle dust pre-separation technology, filter bag bottom fixed technology, micro-pressure blow-back cleaning technology and other technologies to greatly reduce the bag breaking rate; and its unique intelligent monitoring. The analysis technology can identify the problem filter bag as early as possible before the dust exceeds the standard, accurately locate the position of the problem filter bag, and process the problem filter bag on-line to achieve a bag-breaking rate of zero.