Double-filtration anti-blocking pulse bag dust collector

Abstract

The invention discloses a double-filtration anti-blocking pulse bag dust collector, comprising a box body and a spray pipe; a perforated plate and a cage frame are fixedly connected in the box body; a plurality of electromagnetic valves are fixedly connected to the cage frame, a first filter bag and a second filter bag are fixedly connected between every electromagnetic vale and the perforated plate, the lower ends of both the first and second filter bags are fixedly connected with valve bodies of the electromagnetic valves, venturi tubes are penetratingly connected to the perforated plate, and the spray pipe is fixedly connected above the perforated plate in the box body; a vibrating motor is fixedly connected to each side of lower funnel structure of the box body, the funnel part in the box body is fixedly connected with a plurality of electric telescopic rods through a mounting frame, an intake pipe is fixedly connected with a plurality of steel rods through a circular frame, and the intake pipe is also fixedly sleeved with an electromagnetic heating sleeve; the double-filtration anti-blocking pulse bag dust collector provides secondary dust collection, the filter bags are high in carrying capacity, dust collection efficiency is effectively improved, and the double-filtration anti-blocking pulse bag dust collector runs stably and is suitable for collecting dust in various cold and hot waste gases.

Description

technical field [0001] The invention relates to a dust removal device, in particular to a double-filter anti-blocking pulse cloth bag dust collector. Background technique [0002] The pulse bag filter is a new type of high-efficiency pulse bag filter improved on the basis of the bag filter. In order to further improve the pulse bag filter, the improved pulse bag filter retains the advantages of high purification efficiency, large gas handling capacity, stable performance, convenient operation, long filter bag life, and small maintenance workload. And the pulse valve was reformed to solve the problem of open air placement and low pressure of compressed air source. The specific working principle is that the dusty gas enters the ash hopper from the air inlet channel, and the coarse dust particles directly fall into the ash outlet at the bottom of the box, and the fine dust particles fall directly into the ash outlet at the bottom of the box. The dust particles turn upwards wit...

AI Technical Summary

Problems solved by technology

In order to further improve the pulse bag filter, the improved pulse bag filter retains the advantages of high purification efficiency, large gas handling capacity, stable performance, convenient operation, long filter bag life, and small maintenance workload. And the pulse valve was reformed to solve the problem of open air placement and low pressure of compressed air source. The specific working principle is that the dusty gas enters the ash hopper from the air inlet channel, and the coarse dust particles directly fall into the ash outlet at the bottom of the box, and the fine dust particles fall directly into the ash outlet at the bottom of the box. The dust particles turn upwards with the airflow and accumulate on the outer surface of the filter bag. The filtered gas enters the upper part of the box and is discharged to the atmosphere. Then open the pulse valve and use compressed air to carry out pulse jet soot cleaning. The closing time of the cut-off valve is enough to ensure that the dust stripped from the filter bag after blowing settles to the ash hopper, preventing the dust from being attached to the airflow after leaving the surface of the filter bag. The surface of the adjacent filter bag makes the filter bag clean thoroughly, and the exhaust valve, pulse valve and ash discharge valve are fully automatically controlled by the programmable controller; the current pulse dust collectors all use single filter For dust removal, except for the heavy dust that falls directly into the ash hopper, the rest of the dust is accumulated on the filter bag, which requires frequent start-up for backflush cleaning. In addition, the cleaning process mainly depends on the deformation of the filter bag and the internal It is realized by high-pressure wind blowing. If the dust is dry dust, such as the dust in the exhaust gas of boilers and other equipment, the effect of this back blowing is excellent. However, if the exhaust gas contains a lot of water vapor, such as dust removal in mine production, the water vapor and dust will accumulate in the It is easy to wet mix it on the filter bag, and the filter holes of the filter bag are completely blocked, which not only has a great impact on the dust removal effect, but also has a great impact on the dust removal effect of the back blowing due to the high viscosity of the stucco after wet mixing. In addition, in addition to the filter bag, the sticky dust falling on the ash hopper below is also easy to accumulate and block, and it is difficult to remove the plaster accumulated above it through the conventional discharge device. At this time, it can only be solved by manual dredging. Therefore, There is an urgent need for a pulse dust collector that has a wide range of applications and can stably remove dust from both hot dry and wet exhaust gases

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