CN103263816B - Air box-bag type dust collector integrated with high efficiency cyclone dust collection - Google Patents

Abstract

An air box-type bag dust collector with high-efficiency cyclone dust collection, including a housing with an air inlet and a clean gas outlet, and a bag-type dust collection part and a gravity cyclone dust removal part are arranged in the cavity of the housing. The gravity cyclone dust removal part and the bag dust collection part are connected in series, and the dust-containing gas enters the housing through the air inlet and is discharged after being processed by the gravity cyclone dust removal part and the bag dust collection part. There are ash outlets on the dust collection part. The device improves the gravity cyclone dust removal part and divides the internal space into a gravity settling chamber and a cyclone separation chamber reasonably, effectively treating the dusty gas in multiple stages to ensure the dust removal effect. The gas processed by the gravity cyclone dust removal part enters the bag dust removal part through its air outlet for further dust removal. The whole equipment has the advantages of low dust collection efficiency, low operating cost and small footprint.

Description

An air-box bag-type dust collector with high-efficiency cyclone dust collection

technical field

The invention relates to a bag type dust collecting device, in particular to an air box type bag type dust collector which collects high-efficiency cyclone dust collection.

Background technique

At present, the dust collectors on the market are relatively mature technologies, mainly including cyclone dust removal, gravity dust removal, bag dust collection, electric dust removal, etc. However, there are not many equipment based on gravity sedimentation, cyclone dust removal and bag dust removal. Moreover, most of the devices are complex in structure and small in handling air volume, so there is an urgent need to provide a PPF air box bag type dust collector with good separation effect and low energy consumption, which integrates high-efficiency cyclone collection.

Contents of the invention

In order to solve the above technical problems, the present invention provides an air box bag type dust collector with high efficiency cyclone dust collection. The settling chamber is separated into a first-level gravity settling chamber and a second-level gravity settling chamber by the upper flower plate of the cyclone, the lower flower plate of the cyclone and the damping plate, and multiple inclined cyclones are distributed in the first-level gravity settling room. Gravity sedimentation and cyclone dust collection, so in principle, it is a three-stage series connection of gravity sedimentation, cyclone dust collection, and gravity sedimentation, so the dust collection efficiency is high. Secondly, because of the small size of a single cyclone, the cyclone dust collection efficiency is high, and the total collection Increased dust efficiency. Another advantage of this structure is that multiple cyclones are connected in parallel and are in the same casing, so the air volume can be increased with the number of cyclones. And the system heat dissipation area is reduced, so that the system heat dissipation is reduced, and the reliable operation of the bag dust collector will not be affected by the system heat dissipation problem. The high-efficiency cyclone dust collection with multiple cyclones can meet the processing requirements of dusty gas with any air volume in terms of structure, and the air box bag filter can also meet the requirements of any air volume and content through the parallel combination of filter bag boxes. Dust gas treatment needs. Therefore, the whole equipment has the advantages of large air volume, high dust collection efficiency, low operating cost and small floor space.

The technical solution adopted in the present invention is: an air box bag type dust collector with high-efficiency cyclone dust collection, including a housing with an air inlet and a clean gas outlet, and a bag type dust collector is provided in the cavity of the housing. The dust collection part and the gravity cyclone dust removal part, the gravity cyclone dust removal part and the bag dust collection part are connected in series. Both the gravity cyclone dust removal part and the bag dust collection part are provided with ash outlets, the gravity cyclone dust removal part includes a gravity settling chamber and a cyclone arranged in the gravity settling chamber, and the gravity settling chamber consists of a cyclone The upper flower plate, the lower flower plate of the cyclone and the damping plate divide the cavity in the gravity settling chamber into a first-level gravity settling room and a second-level gravity settling room, and the air inlet communicates with the first-level gravity settling room; The gravity settling chamber is surrounded by the upper flower plate of the cyclone, the lower flower plate of the cyclone and the damping plate. Among them, the upper flower plate of the cyclone and the lower flower plate of the cyclone are respectively set at an acute angle with the horizontal plane, and the damping plate is set far away from the air inlet. One side, and a gravity settling dust outlet is opened on the damping plate;

The cyclone is set in the first-level gravity settling chamber, and the space inside the cyclone is a cyclone separation chamber. The cyclone is fixedly connected between the upper flower plate of the cyclone and the lower flower plate of the cyclone, and the central axis of the cyclone is perpendicular to the cyclone respectively. The upper flower plate of the cyclone and the lower flower plate of the cyclone, the dust-containing gas inlet of the cyclone is located in the first-level gravity settling chamber, and the separated gas outlet at the upper end of the cyclone and the dust discharge port at the lower end are connected with the second-level gravity settling chamber.

The upper flower plate of the cyclone and the lower flower plate of the cyclone are parallel to each other, and the upper flower plate of the cyclone and the lower flower plate of the cyclone are respectively at an angle of 30° with the horizontal plane.

There are at least two bag-type dust-collecting parts, and each bag-type dust-collecting part is provided with a filter air inlet, and the cyclone dust-collecting outlet on the gravity cyclone dust-removing part is respectively connected to each bag-type dust-collecting part. connected to the filter air inlet.

The beneficial effects of the present invention are:

One, the device of the present invention is connected in series with high-efficiency gravity cyclone dust collection and air box bag type dust collection. The effect of cyclone dust collection and bag dust collection are complementary. The present invention improves the gravity cyclone dedusting part and divides the internal space reasonably into a gravity settling chamber and a cyclone separation chamber to effectively treat the dusty gas in multiple stages to ensure the dust removal effect. The gas treated by the gravity cyclone dedusting part passes through its The air outlet enters the bag-type dust removal part for further dust removal. The whole equipment has the advantages of high dust collection efficiency, low operating cost and small footprint.

Second, in the dust removal part of the gravity cyclone, the first-level gravity settling chamber and the second-level gravity settling chamber are separated by the upper flower plate of the cyclone, the lower flower plate of the cyclone and the damping plate, and multiple inclined cyclones are distributed in the first-level In the gravity settling chamber, the first-level gravity settling chamber is surrounded by the upper flower plate of the cyclone, the lower flower plate of the cyclone and the damping plate, and the upper flower plate of the cyclone and the lower flower plate of the cyclone are respectively arranged at an acute angle with the horizontal plane, The damping plate is set on the side away from the air inlet, and a gravity settling dust outlet is opened on the damping plate; through the above structure improvement, in the first-level gravity settling chamber, the gas flow rate is reduced, and the large particle material is under the action of gravity. The separation of gas, at the same time, the solid particles hit the outer wall of the cyclone and are separated when they lose their inertia. Therefore, the separation effect is better; then the initially separated gas enters the interior of the cyclone to separate the large particles of dust again, and the separated gas enters again In the second-stage gravity settling chamber with a larger space, the gas flow rate is reduced, and the large particle materials fall and collect along the inclined cyclone upper flower plate again under the action of gravity. This structure achieves the best separation effect; and because multiple cyclones are in the The airtight setting is in the first-level gravity settling room, so the insulation effect of the system is very good.

Its three, the present invention arranges the whirlwind obliquely, the central axis of the whirlwind is perpendicular to the whirlwind upper flower board and the whirlwind lower flower board respectively, and the oblique installation angle of the whirlwind upper flower board and the whirlwind lower flower board is 30° to ensure the smooth discharge of dust after separation.

Its four, the flower plate on the device of the present invention is installed at an inclination with the level, which is convenient for the discharge of the dust collected by the electric dust collector.

Fifth, the device has a simple structure, is convenient for maintenance, and is easy to remove internal dust accumulation, thereby improving the operational reliability of the equipment.

Description of drawings

Fig. 1 is a front view of the present invention.

Figure 2 is a top view of the present invention.

Fig. 3 is a structural schematic diagram of the gravity cyclone dust removal part in the present invention.

Fig. 4 is a schematic structural view of the cyclone in the present invention.

Marks in the figure: 1. shell, 101, air inlet, 102, clean gas outlet, 103, ash outlet, 2, bag dust removal part, 201, filter bag, 202, blowback device, 203, control valve, 204 , filter air inlet, 3, gravity cyclone dust removal part, 301, gravity settling chamber, 3011, first-level gravity settling chamber, 3012, second-level gravity settling chamber, 3013, cyclone upper flower plate, 3014, cyclone lower flower plate , 3015, damping plate, 3016, gravity sedimentation dust outlet, 302, cyclone, 3021, dusty gas inlet, 3022, separated gas outlet, 3023, dust discharge port, 303, cyclone dust collection outlet.

Detailed ways

As shown in the figure, an air box-type bag dust collector with high-efficiency cyclone dust collection includes a housing 1 with an air inlet 101 and a clean gas outlet 102, and a bag-type dust collector is provided in the cavity of the housing 1. The dust collection part 2 and the gravity cyclone dust removal part 3, the gravity cyclone dust removal part 3 and the bag type dust collection part 2 are connected in series, the dust-containing gas enters the housing through the air inlet 101 and is first processed by the gravity cyclone dust removal part 3, and then passed through the cyclone dust collection After the outlet 303 is discharged, it enters the bag type dust collection part 2 for treatment and then discharges. Both the gravity cyclone dust removal part 3 and the bag type dust collection part 2 are provided with an ash outlet 103. The gravity cyclone dust removal part 3 includes gravity The settling chamber 301 and the cyclone 302 arranged in the gravity settling chamber, the gravity settling chamber 301 is divided into a cavity in the gravity settling chamber 301 by the upper flower plate 3013 of the cyclone, the lower flower plate 3014 of the cyclone and the damping plate 3015. The first-level gravity settling chamber 3011 and the second-level gravity settling chamber 3012, the air inlet 101 communicates with the first-level gravity settling chamber 3011; 3014 and damping plate 3015, in which, the upper flower plate 3013 of the cyclone and the lower flower plate 3014 of the cyclone are respectively set at an acute angle with the horizontal plane, and the damping plate 3015 is set on the side away from the air inlet 101, and on the side of the damping plate 3015 is equipped with gravity sedimentation dust outlet 3016;

The cyclone 302 is set in the first-level gravity settling chamber 3011. The space inside the cyclone 302 is a cyclone separation chamber. The cyclone 302 is fixedly connected between the upper flower plate 3013 of the cyclone and the lower flower plate 3014 of the cyclone. The central axis of 302 is perpendicular to the upper flower plate 3013 of the cyclone and the lower flower plate 3014 of the cyclone respectively, the dust-containing gas inlet 3021 of the cyclone 302 is located in the first-level gravity settling chamber 3011, the separated gas outlet 3022 at the upper end of the cyclone 302 and the lower end The dust discharge ports 3023 of each are connected with the secondary gravity settling chamber 3012.

In the present invention, the upper flower plate 3013 of the cyclone and the lower flower plate 3014 of the cyclone are parallel to each other, and the upper flower plate 3013 of the cyclone and the lower flower plate 3014 of the cyclone respectively form an included angle of 30° with the horizontal plane.

In the present invention, in order to improve the dust removal effect, at least two bag-type dust-collecting parts 2 are provided, and each bag-type dust-collecting part 2 is provided with a filter air inlet 204. The dust outlet 303 is respectively connected with the filter air inlet 204 on each bag type dust collection part 2, and the cyclone dust collection outlet 303 is the port for exhausting the gas after being processed by the gravity cyclone dust removal part 3, and the filter air inlet 204 is the bag filter. The air inlet port on the bag-type dust collection part 2 ensures that the dust collection efficiency is greatly improved by arranging a plurality of bag-type dust collection parts 2 .

The bag type dust removal part 2 described in the present invention is an existing mature technology, and a commercially available bag type dust remover can be used. The main improvement of the present invention lies in the gravity cyclone dust removal part, so there is not too much description about the bag type dust removal part. The bag type dust removal part mentioned in this article refers to the air box bag type dust removal equipment, which is similar to the pulse type bag type dust removal equipment. The air box type bag type dust removal equipment includes the following components: filter bag 201 for filtering dusty gas and The blowback device 202 used to remove the dust deposited on the surface of the filter bag. Generally speaking, after the dusty air enters the bag filter, it is filtered through the filter bag and then discharged. There is an air outlet corresponding to each filter bag box, and the air outlet has The control device can control its opening, and the upper part of the air box is connected with the high-pressure air bag, and is controlled by a control valve 203 . Every time the filter bag in a single air box works for a period of time, the air outlet of the air box is closed, and the high-pressure air passes through the control valve to connect the high-pressure air bag with the upper part of the air box, and the high-pressure gas enters the air box to oppose the filter bag in the air box. The blowback gas enters the other air box from the lower part of the air box, and the powdery material outside the filter bag falls and is discharged and collected through the ash outlet at the bottom of the shell.

The cyclone described in this article is the cyclone separator sold on the market. The innovation of the present invention lies in the overall structural design combined with the cyclone separator which is arranged obliquely, but there is no improvement for the cyclone separator. The conventional cyclone separator The working principle is: the dust-containing gas enters tangentially along the outer wall of the cyclone under the force of negative pressure, and the separation of gas and solid is realized by the dual force of centrifugal force and gravity.

In this device, multiple cyclones are set in the first-level gravity settling chamber. According to the processing air volume, multiple cyclones can be arranged, so the processing air volume can meet the process requirements. At the same time, because multiple cyclones are in one shell, the system is insulated. The effect is good, and the size of the cyclone is small, and the dust collection efficiency is high.

Claims (1)

1. the air-box type bag filter collecting efficient cyclone and gather dust, comprise with air inlet (101), the housing (1) of clean gas outlet (102), bag type dust collection part (2) and gravity cyclone dust removal part (3) is provided with in the cavity of housing (1), gravity cyclone dust removal part (3) and bag type dust collection part (2) are connected in series, dusty gas is entered in housing also successively through gravity cyclone dust removal part (3) by air inlet (101), discharge after bag type dust collection part (2) process, described gravity cyclone dust removal part (3) and bag type dust collection part (2) are equipped with ash hole (103), it is characterized in that:

Described gravity cyclone dust removal part (3) comprises gravity settling chamber (301) and is arranged on the Whirlwind cyclone (302) of gravitational settling indoor, cavity in gravity settling chamber (301) is divided into one-level gravity settling chamber (3011) and secondary gravity settling chamber (3012) by Whirlwind cyclone upper face plate (3013), Whirlwind cyclone lower face plate (3014) and damping sheet (3015) by described gravity settling chamber (301), and air inlet (101) is connected with described one-level gravity settling chamber (3011); Described one-level gravity settling chamber (3011) is surrounded by Whirlwind cyclone upper face plate (3013), Whirlwind cyclone lower face plate (3014) and damping sheet (3015) and is formed, wherein, Whirlwind cyclone upper face plate (3013), Whirlwind cyclone lower face plate (3014) are arranged horizontal by acute angle respectively, damping sheet (3015) is arranged on the side away from air inlet (101), and offers gravitational settling dust outlet (3016) at described damping sheet (3015);

Described Whirlwind cyclone (302) is arranged in one-level gravity settling chamber (3011), the space of Whirlwind cyclone (302) inside is cyclone separating chamber, Whirlwind cyclone (302) is fixedly connected between Whirlwind cyclone upper face plate (3013) and Whirlwind cyclone lower face plate (3014), the axis of Whirlwind cyclone (302) is respectively perpendicular to Whirlwind cyclone upper face plate (3013) and Whirlwind cyclone lower face plate (3014), the dusty gas import (3021) of Whirlwind cyclone (302) is positioned at one-level gravity settling chamber (3011), the separated gas outlet (3022) of Whirlwind cyclone (302) upper end is all connected with secondary gravity settling chamber (3012) with the ash discharge dirt mouth (3023) of lower end,

Described Whirlwind cyclone upper face plate (3013) and Whirlwind cyclone lower face plate (3014) are parallel to each other, and Whirlwind cyclone upper face plate (3013), Whirlwind cyclone lower face plate (3014) are respectively at horizontal by 30 ° of angles;

Described bag type dust collection part (2) is at least provided with two, each bag type dust collection part (2) is equipped with filtered air inlet (204), and cyclone dust collection outlet (303) in gravity cyclone dust removal part (3) is connected respectively at the filtered air inlet (204) in each bag type dust collection part (2).