CN2410543Y - Cyclone bag type dust remover - Google Patents

Abstract

The utility model discloses a cyclone atmosphere back-blowing bag filter, which belongs to the technical field of dust removal and is composed of a cyclone settling chamber, a bag filter chamber, a cleaning room, an ash storage hopper and the like. The bag filter room is placed in the cylinder, the cyclone settling room is placed in the middle of the bag filter room, the ash storage bucket is located below the bag filter room, and the cleaning room is above the bag filter room. valve and anti-blowing cut-off valve. The structure is simple and compact, the layout is reasonable, the floor area is small, the dust removal efficiency is high, and the maintenance is convenient. It is suitable for dust removal and purification systems for various types of dust, especially for dust removal systems with high dust concentration.

Description

Cyclone Atmospheric Anti-Blow Bag Dust Collector

The utility model belongs to the technical field of environmental protection and dedusting, in particular to a cyclone atmosphere reverse blowing cloth bag dust collector.

There is a large amount of dust-containing flue gas in industrial production that needs to be treated to protect people's living space. Since the existing bag filter and cyclone dust collector are mostly separate purification equipment, when dealing with gases with high dust concentration, it is generally necessary to use a combination of a first-level cyclone dust collector and a first-level bag filter, and the equipment occupies an area The area is large, the pipeline connection is complicated, the transportation and storage of the captured dust are difficult, the system investment is large, and the maintenance and management are inconvenient.

Although the existing cyclone pulse bag filter has two functions of cyclone dust collector and bag dust collector, it still has the following deficiencies: 1. It cannot use the atmosphere to carry out reverse blowing and dust removal, but uses compressed air to carry out blowing and dust removal , an additional set of compressed air device is required. 2. The injection system is controlled by a pulse valve. The life of the pulse valve is short and failures often occur, which affects the normal operation of the equipment and increases the maintenance workload of the equipment. 3. Since the clean room of the dust collector is connected to each filter bag, there is no cut-off facility in between, so the three-state (filter → back blow → static) cleaning process cannot be realized, that is, the dust that is blown down cannot be in a static state. Under normal conditions, the dust falls into the ash hopper by its own weight, and part of the dust will be re-adsorbed to the filter bag under the action of the fan suction, which will affect the cleaning effect.

The purpose of the utility model is to provide a cyclone atmospheric back-blowing bag dust collector, which has two functions of the cyclone dust collector and the atmospheric back-blowing bag dust collector. The structure is simple and compact, the plane occupies a small area, the dust removal efficiency is high, the production is easy, the maintenance is convenient, and it is suitable for the purification treatment of industrial dust.

The cyclone air reverse blowing bag filter consists of a cyclone settling chamber, a bag filter room (the bag filter room can be divided into several areas), a clean room, ash storage hopper, exhaust cut-off valve, reverse blow cut-off valve, exhaust device, ash discharge It is composed of valve and ash conveying and humidifying device. The bag filter chamber is placed in the middle of the cylinder, the cyclone settling chamber is placed in the middle of the bag filter room, the dust storage hopper is located below the bag filter room, and the cleaning room is located above the clean room, corresponding to each area of the bag filter room. Exhaust air cut-off valve and anti-blowing cut-off valve, ash unloading valve and ash conveying humidification device are installed under the ash storage hopper.

The cyclone atmospheric back-blowing bag filter integrates cyclone dust collector, bag filter and ash storage device. The bag filter chamber is placed in the middle of the cylinder, and the cyclone settling chamber is placed in the middle of the bag filter chamber. Air is used for back blowing and cleaning. There is no need to set up another set of compressed air device; no pulse valve is needed to control the blowing, which reduces failures and equipment maintenance workload; the dust removal efficiency is high; the bag filter room can be divided into several areas, and can realize three states (filter → back blow →Static) dust cleaning process, that is, the blown dust can fall into the ash hopper by the weight of the dust in a static state, and the dust will not be re-adsorbed to the filter bag under the action of the fan suction. The system has low investment, simple and compact, small footprint, high dust removal efficiency, easy manufacture, convenient maintenance and repair, and convenient transportation and storage of the collected dust.

Below in conjunction with accompanying drawing, the concrete implementation of the present utility model is described further.

Figure 1 is the front section view of cyclone air reverse blowing bag filter

Figure 2 is the A-A sectional view of the cyclone atmospheric back-blowing bag filter

As shown in Fig. 1, the cyclone atmosphere anti-blowing bag dust collector of the present invention is composed of a cyclone settling chamber 1, a bag filter chamber 2, a cleaning room 3, an ash storage bucket 4, an exhaust cut-off valve 5, an anti-blow cut-off valve 6, an exhaust Air device 7, ash unloading valve 8, ash conveying and humidifying device 9, cylinder 10 are formed. The bag filter chamber 2 is placed in the middle of the cylinder body 10, the cyclone settling chamber 1 is placed in the middle of the bag filter room 2, the dust storage bucket 4 is located below the bag filter room 2, and the cleaning room 3 is located above the clean room 3, corresponding to each A bag filter area is equipped with an exhaust cut-off valve 5 and a blow-back cut-off valve 6 , and an ash unloading valve 8 and an ash conveying humidification device 9 are arranged under the ash storage hopper 4 .

When the cyclone air reverse blowing bag filter works: the dust-containing gas first passes through the cyclone settling chamber 1 for preliminary dust removal, and the larger particles of dust are captured, and the dust-containing gas is subjected to preliminary dust removal; then the gas containing finer particles of dust enters The bag filter chamber 2 performs fine dust removal, and the clean gas after purification enters the clean chamber 3, and finally is discharged through the exhaust device 7. The collected dust is stored in the ash storage hopper 4, and when the dust is stored to a certain amount, the ash unloading valve 8 and the ash conveying and humidifying device 9 are started, and the dust is unloaded on the transportation means and transported away.

The bag filter room 2 is divided into several areas, and the dust cleaning method of the bag adopts atmospheric partitions to carry out back blowing and dust cleaning in sequence. The dust cleaning process adopts three states, namely: filtration→back blowing→static (repeated several times). The switching of filtering and back blowing is realized by opening/closing the exhaust air cut-off valve 5 and the reverse blow blow cut-off valve 6 . When filtering normally, the exhaust cut-off valve 5 is opened, and the blow-back cut-off valve 6 is closed; When the valve 5 is closed at the same time, there is no gas passing through the bag filter chamber 2 (referring to the area to be cleaned), and it is in a static state. The control of the anti-blowing dust cleaning system in the bag filter room 2 adopts pressure difference control or timing control.

The bag frame in the bag filter chamber 2 adopts a foldable frame, which can be pulled out from the clean room 3 when replacing the bag, and the dirty filter bag is taken out from the lower part of the bag filter chamber 2, making it easier to replace the bag.

The bag filter room is divided into two types: cylindrical and square: the dust storage hopper of each dust collector can be divided into one or more.

Claims (1)

1. A cyclone atmosphere anti-blowing bag filter, which is composed of a cyclone settling chamber, a bag filter room, a cleaning room, an ash storage hopper, and a cylinder. It is characterized in that: the bag filter chamber is placed in the middle of the cylinder, and the cyclone settling chamber is placed In the middle of the bag filter room, the bottom of the bag filter room is the ash storage hopper, and the upper part is the cleaning room. The upper part of the clean room is equipped with an exhaust cut-off valve and a reverse blowing cut-off valve for each area of the bag filter room. It is equipped with ash unloading valve and ash conveying humidification device.