Air inlet flue gas adjustable dust collector

Abstract

The utility model discloses an air inlet flue gas adjustable type dust collector, which comprises a dust collector body, a flue and air inlet pipes, the flue is arranged on the inner side of the dust collector body, the section of the flue is sequentially reduced from left to right, the bottom of the flue is connected with the air inlet pipes, the air inlet pipes are arranged at equal intervals, the lower parts of the air inlet pipes are connected with fan covers, and the fan covers are connected with the dust collector body. Bent air pipes are symmetrically arranged below the fan cover, vertical sections are arranged in the middles of the bent air pipes, air pressure balance pipes are arranged between the vertical sections, an equipartition plate is arranged in each vertical section, each equipartition plate is a punched metal circular plate, the number of the air pressure balance pipes is two, the air pressure balance pipes are arranged up and down, and the equipartition plates correspond to gaps between the air pressure balance pipes. The effect of buffering wind power can be achieved through the equipartition plate, when the wind pressure of the two vertical sections is inconsistent, the wind pressure between the vertical sections can be balanced through the wind pressure balance pipe, then the wind pressure on the two sides is kept balanced, and it is ensured that the wind pressure entering the wind chamber is the same.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collector wind pressure distribution, in particular to a dust collector with adjustable air and smoke inlet. Background Art

[0002] The dust collector is mainly composed of an ash bin and a filter bag box. The coarse dust particles fall into the ash bin by their own gravity, and the filter bag can absorb smaller dust. The dust adsorbed on the outer wall of the filter bag accumulates thicker and thicker with the growth of time, and the resistance of the dust collector gradually increases, and the amount of gas processed continues to decrease. In order to keep the dust collector in an effective working state and keep the pressure loss within a certain range, it is necessary to evenly distribute the dust-containing flue gas in each chamber to make the dust-containing flue gas filtered by the filter bag in each chamber the same. At present, there are two air intake methods for bag dust collectors, one is to let air in through the ash hopper and the ash hopper opening, and the other is to let air in through the side of the air inlet channel left inside the box body. Both air intake methods can allow the flue gas to enter the dust collector body, but it is found in the existing project application that when the above two air intake methods enter the dust collector, when the dust collector with a larger air volume adopts this air intake method, the flue gas distribution in each air chamber will be uneven, resulting in different dust removal amounts of the dust collector and incomplete dust removal.

[0003] Chinese patent application No. 202021885112.7 discloses a pulse bag dust collector, including an air inlet device, an ash bin, a dust removal chamber, a clean air chamber, a ash cleaning device, and a frame; the air inlet device also includes an air volume regulating device, an anti-wear inlet device, and an inclined plate guide device. The air is introduced into the upper side of the ash bin, and the flue gas is evenly distributed into the anti-wear inlet device through the air volume regulating device; each air inlet device is provided with an air volume regulating device, which increases the cost of the structure, and the air volume entering the air inlet device from the flue is inconsistent. The air pressure is completely regulated by the air volume regulating device. Once the regulating device is damaged, the air volume distribution work cannot be met. In view of the above-mentioned problems, an adjustable dust collector with air inlet and flue gas is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a dust collector with adjustable air and flue gas inlet. The structure is simple, which ensures that the air and flue gas in the dust collector can be evenly distributed in each box chamber, improves the cleaning efficiency of the dust collector, reduces the loss of filter bags, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust collector with adjustable air and flue gas inlet, comprising a dust collector body, a flue and an air inlet pipe, the flue being arranged on the inner side of the dust collector body, the cross-section of the flue decreasing from left to right, the bottom of the flue being connected to an air inlet pipe, the air inlet pipes being arranged at equal intervals, a wind hood being connected below the air inlet pipe, bent air ducts being symmetrically arranged below the wind hood, a vertical section being arranged in the middle of the bent air duct, a wind pressure balancing pipe being arranged between the vertical sections, and an equalizing plate being arranged inside the vertical section.

[0006] Furthermore, the balancing plate is a punched metal circular plate, two wind pressure balancing tubes are provided, and the wind pressure balancing tubes are provided up and down, and the gap between the balancing plate and the wind pressure balancing tube corresponds.

[0007] Furthermore, an automatic regulating butterfly valve is provided at the lower end of the air inlet pipe, and the air inlet pipe is connected to the upper port of the air hood through the automatic regulating butterfly valve.

[0008] Furthermore, the dust collector body is arranged on the bracket, the dust collector ash hopper is connected to the lower part of the dust collector body, and the lower end of the bent air duct is connected to the dust collector ash hopper.

[0009] Furthermore, a smoke inlet is arranged at the left end of the smoke duct, a smoke outlet is arranged at the right end of the smoke duct, and an inclined plate is arranged in the smoke duct.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The wind force can be buffered by the equalizing plate. When the wind pressure of the two vertical sections is inconsistent, the wind pressure between the vertical sections can be balanced by the wind pressure balancing pipe, so that the wind pressure on both sides is balanced, ensuring that the wind pressure entering the wind chamber is the same.

[0012] 2. The structure may or may not be equipped with an automatic regulating butterfly valve. When the automatic regulating butterfly valve is not equipped, the pressure equalization effect can be achieved by completely relying on the structure of the bent air duct itself. The number of automatic regulating butterfly valves can be reduced by half, which also saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the partial cross-sectional structure of the bent air duct of the utility model;

[0015] Figure 3 It is a right side structural schematic diagram of the utility model;

[0016] Figure 4 This is a sampling diagram of the bent air duct of the utility model.

[0017] In the figure: 1 dust collector ash hopper, 2 flue gas inlet, 3 flue, 4 inclined plate, 5 flue gas outlet, 6 wind hood, 7 bent air duct, 8 wind pressure balance pipe, 9 vertical section, 10 equalizing plate, 11 bracket, 12 air inlet pipe, 13 automatic regulating butterfly valve, 14 dust collector body. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] See also Figure 1-4 The utility model provides a technical solution: an adjustable dust collector for inlet flue gas, comprising a dust collector body 14, a flue 3 and an air inlet pipe 12. The flue 3 is arranged on the inner side of the dust collector body 14. The cross section of the flue 3 decreases from left to right. The structure of the flue 3 is conducive to increasing the wind pressure in sequence, avoiding a large difference in the wind pressure entering the air inlet pipe 12. The bottom of the flue 3 is connected to the air inlet pipe 12. The air inlet pipes 12 are arranged at equal intervals. A wind hood 6 is connected below the air inlet pipe 12. The wind hood 6 plays a role in gathering wind force. The wind pressure is then divided through the bent air duct 7. The wind pressure can be evenly distributed through the bent air duct 7. The bent air duct 7 is symmetrically arranged below the wind hood 6. A vertical section 9 is arranged in the middle of the bent air duct 7. A wind pressure balancing tube 8 is arranged between the vertical sections 9. An averaging plate 10 is arranged inside the vertical section 9. The averaging plate 10 can buffer the wind force. When the wind pressures of the two vertical sections 9 are inconsistent, the wind pressures between the vertical sections 9 can be balanced through the wind pressure balancing tube 8, thereby keeping the wind pressures on both sides balanced, ensuring that the wind pressures entering the wind chamber are the same.

[0020] The equalizing plate 10 is a punched metal circular plate. Two wind pressure balancing tubes 8 are provided, and the wind pressure balancing tubes 8 are arranged up and down. The gap between the equalizing plate 10 and the wind pressure balancing tube 8 corresponds. The wind pressure balancing tube 8 connects the two bent air ducts 7 to achieve mutual communication, so that the wind pressure of the two bent air ducts 7 is the same.

[0021] An automatic regulating butterfly valve 13 is provided at the lower end of the air inlet pipe 12, and the air inlet pipe 12 is connected to the upper port of the wind hood 6 through the automatic regulating butterfly valve 13. The pressure entering the wind hood 6 can be adjusted by the automatic regulating butterfly valve 13, so that the air volume in the flue 3 can be evenly distributed in each wind hood 6, and then the air volume can be distributed again by bending the air duct 7. In this way, the number of automatic regulating butterfly valves 13 can be saved and the equipment cost can be reduced.

[0022] The dust collector body 14 is arranged on the bracket 11, and the dust collector ash hopper 1 is connected to the lower part of the dust collector body 14. The lower end of the bent air duct 7 is connected to the dust collector ash hopper 1. The coarse dust particles settle downward by their own gravity and fall into the dust collector ash hopper 1 for collection.

[0023] A smoke inlet 2 is disposed at the left end of the smoke duct 3 , a smoke outlet 5 is disposed at the right end of the smoke duct 3 , and an inclined plate 4 is disposed in the smoke duct 3 , through which the smoke duct 3 can be made to have a structure with a gradually decreasing cross-section.

[0024] Without setting the automatic regulating butterfly valve 13, the wind in the flue 3 directly enters the wind hood 6 through the air inlet pipe 12, and then the air volume is distributed through the structure of the bent air duct 7. Setting the automatic regulating butterfly valve 13 can further improve the air volume distribution accuracy, and customers can also make a choice according to actual needs.

[0025] The adjustable dust collector can clean dust efficiently to meet environmental emission requirements; on the other hand, the dust-containing flue gas is evenly distributed in each box chamber and its corresponding dust collector hopper, which improves the cleaning efficiency of the dust collector, reduces the internal resistance of the dust collector, saves energy, and increases the life of the filter bag.

[0026] The basic principles, main features and advantages of the present invention are shown and described above. Without departing from the spirit and scope of the present invention, the present invention may also be subject to various changes and improvements, which are all within the scope of the present invention to be protected.

Claims

1. A dust collector with adjustable flue gas inlet, comprising a dust collector body (14), a flue (3) and an air inlet pipe (12), characterized in that: The flue (3) is arranged on the inner side of the dust collector body (14), the cross section of the flue (3) decreases from left to right, the bottom of the flue (3) is connected to an air inlet pipe (12), the air inlet pipes (12) are arranged at equal intervals, the lower part of the air inlet pipe (12) is connected to a wind hood (6), the lower part of the wind hood (6) is symmetrically provided with a bent air duct (7), the middle part of the bent air duct (7) is provided with a vertical section (9), a wind pressure balance pipe (8) is provided between the vertical sections (9), and an equalizing plate (10) is provided inside the vertical section (9).

2. The dust collector with adjustable air and flue gas inlet according to claim 1, characterized in that: The averaging plate (10) is a punched metal circular plate, two wind pressure balancing tubes (8) are provided, and the wind pressure balancing tubes (8) are arranged one above the other, and the gap between the averaging plate (10) and the wind pressure balancing tubes (8) corresponds to each other.

3. The dust collector with adjustable air and flue gas inlet according to claim 1, characterized in that: An automatic regulating butterfly valve (13) is provided at the lower end of the air inlet pipe (12), and the air inlet pipe (12) is connected to the upper port of the air hood (6) via the automatic regulating butterfly valve (13).

4. The dust collector with adjustable air and flue gas inlet according to claim 1, characterized in that: The dust collector body (14) is arranged on the bracket (11), the lower part of the dust collector body (14) is connected to the dust collector ash hopper (1), and the lower end of the bent air duct (7) is connected to the dust collector ash hopper (1).

5. The dust collector with adjustable air and flue gas inlet according to claim 1, characterized in that: A smoke inlet (2) is provided at the left end of the smoke duct (3), a smoke outlet (5) is provided at the right end of the smoke duct (3), and an inclined plate (4) is provided in the smoke duct (3).

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