Bag-type dust collector suitable for viscous substances in dust

Abstract

The utility model belongs to the technical field of bag-type dust removers, and discloses a bag-type dust remover suitable for viscous substances in dust, which comprises a bag-type dust remover body, the bag-type dust remover body comprises a dust remover clean box body, a dust remover dust box body and a dust remover dust hopper which are sequentially communicated from top to bottom, the dust remover clean box body is communicated with a chimney through a fan, and the dust remover dust hopper is communicated with the chimney. A filter bag is arranged in the dust remover dust box body, and one side of the dust remover dust hopper is connected with a dust collection pipeline; an ash supplementing opening and a first air inlet communicated with a compressed air source are formed in the outer wall of the dust remover ash hopper, the lower end of the dust remover ash hopper is connected with a feeder, the lower end of the feeder is connected with a screening bin, and the lower end of the screening bin is connected with a waste bin. The cloth bag can be prevented from being in direct contact with viscous substances, so that the purposes of protecting the cloth bag, prolonging the service life of the cloth bag and achieving long-term use are achieved, the occupied area is not increased, and the cost is effectively controlled.

Description

Technical Field

[0001] This utility model belongs to the technical field of baghouse dust collectors, specifically relating to a baghouse dust collector suitable for dust containing sticky substances. Background Technology

[0002] A baghouse dust collector is a dry, high-efficiency dust removal device, comprising a clean chamber, a dust chamber, a dust hopper, a fan, a chimney, filter bags, suction pipes, a pulse-jet cleaning system, and a platform railing system. When the baghouse dust collector is working, dust-laden gas from the external environment enters the baghouse dust collector through the suction pipes, and then the dust-laden gas is purified by the filtration effect of fibrous fabrics (such as woven filter cloth or non-woven felt). It is suitable for capturing fine, dry, non-fibrous dust.

[0003] In existing technologies, baghouse dust collectors are generally not suitable for working conditions where the dust contains sticky substances. Under such conditions, sticky substances easily clog the surface of the filter bags, causing them to clump and break down quickly. Therefore, cyclone, electrostatic, and wet dust collectors are more commonly used. However, the latter have unstable dust removal efficiency and are prone to exceeding emission standards. Systems using a separate powder spraying device require a separate powder silo, and if the recovered powder is to be recycled, a secondary powder transport device is needed between the dust collector and the powder silo, which increases both cost and floor space requirements. Utility Model Content

[0004] The purpose of this invention is to provide a bag filter suitable for dust containing sticky substances, in order to solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A baghouse dust collector suitable for dust containing sticky substances includes a baghouse dust collector body, which comprises a clean chamber, a dust chamber, and a dust hopper connected sequentially from top to bottom. The clean chamber is connected to a chimney via a fan. Filter bags are installed inside the dust chamber. A dust collection pipe is connected to one side of the dust hopper. The outer wall of the dust hopper is provided with a dust filling port and a first air inlet connected to a compressed air source. A feeder is connected to the lower end of the dust hopper, a screening bin is connected to the lower end of the feeder, and a waste bin is connected to the lower end of the screening bin.

[0007] As a preferred technical solution of this utility model, a control valve is provided at the upper end of the feeder and / or the lower end of the dust collector hopper.

[0008] As a preferred technical solution of this utility model, the control valve is a slide gate valve.

[0009] As a preferred technical solution of this utility model, the lower end of the waste bin is connected to a discharge valve.

[0010] As a preferred technical solution of this utility model, a spray pipe is provided on the side of the screening chamber. The end of the spray pipe away from the screening chamber is connected to the dust suction pipe, and the other end of the spray pipe is provided with a second air inlet connected to a compressed air source.

[0011] As a preferred technical solution of this utility model, the first air inlet is connected to the compressed air source through the first regulating valve, and the second air inlet is connected to the compressed air source through the second regulating valve; the bag filter also includes a controller, which is electrically connected to the first regulating valve, the second regulating valve and the feeder.

[0012] Beneficial Effects: Before starting the baghouse dust collector of this utility model, protective powder for the filter bags is first added to the dust collector hopper through the ash filling port. Then, the compressed air source connected to the fan and the first air inlet is turned on, allowing the powder in the dust collector hopper to be densely distributed on the surface of the filter bags. Then, the dust suction pipe is turned on to suck up dust from the external environment. After the dust with sticky substances enters the dust collector's dust box, the sticky substances stick together and become heavier, then fall downwards under the action of gravity. A large amount of sticky substances are discharged through the feeder, and a small amount of sticky substances fall into the screening bin and then into the waste bin, which is convenient for cleaning after the operation. In particular, the filter bags are protected by the powder, which can avoid direct contact with sticky substances, thereby protecting the filter bags, extending their lifespan, and ensuring that the baghouse dust collector can be used normally under conditions containing sticky substances. This ensures both dust removal efficiency and extends the dust removal efficiency of the core component of the dust collector, the filter bags. Meanwhile, this application uses the dust collector hopper of the bag filter body as a powder silo, combining the dust collector hopper and the powder silo into one, without adding unnecessary power equipment, only increasing the amount of compressed air used, without increasing the floor space, thus effectively controlling costs. Attached Figure Description

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

[0014] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the middle.

[0015] In the diagram: 1-Ash inlet; 2-Feeder; 3-Screening bin; 4-Waste bin; 5-Second air inlet; 6-Control valve; 7-Discharge valve; 8-Injection pipe; 9-First air inlet; 10-First regulating valve; 11-Second regulating valve; 12-Controller; 101-Dust collector clean box; 102-Dust collector dust box; 103-Dust collector ash hopper; 104-Fan; 105-Chimney; 106-Filter bag; 107-Dust suction pipe. Detailed Implementation

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0017] Example:

[0018] like Figure 1 and Figure 2 As shown, this embodiment provides a bag filter dust collector suitable for dust containing sticky substances. It includes a bag filter body, which comprises a clean chamber 101, a dust chamber 102, and a dust hopper 103 connected sequentially from top to bottom. The clean chamber 101 is connected to a chimney 105 via a fan 104. Filter bags 106 are installed inside the dust chamber 102. A suction pipe 107 is connected to one side of the dust hopper 103. The above structure is existing technology. In practice, the bag filter body also includes a pulse-jet cleaning system, etc., but since this is not related to the technical solution of this application, it will not be described in further detail.

[0019] Based on the existing baghouse dust collector body, the outer wall of the dust collector hopper 103 is provided with a ash filling port 1 and a first air inlet 9 connected to a compressed air source. This allows for the addition of protective powder for the filter bags 106 into the dust collector hopper 103 through the ash filling port 1, and then the injection of compressed air through the first air inlet 9. This ensures that the powder is densely distributed on the surface of the filter bags 106 before the baghouse dust collector draws in airborne dust, thus using the dust as a protective layer for the filter bags 106 during the operation of the baghouse dust collector. To prevent sticky substances in the dust from directly contacting the filter bag 106, thus protecting the filter bag and extending its lifespan for long-term use, a feeder 2 is connected to the lower end of the dust collector hopper 103. This facilitates the unloading of sticky substances falling into the feeder 2. The lower end of the feeder 2 is also connected to a screening bin 3, and the lower end of the screening bin 3 is connected to a waste bin 4. Sticky substances falling into the screening bin 3 fall into the waste bin 4 under gravity, making it easy to clean later.

[0020] It should be noted that the ash filling port 1 can also serve as a detection port, allowing for easy observation of the powder level inside the dust collector's ash hopper 103, facilitating timely powder replenishment and ensuring sufficient powder quantity. Additionally, a valve will be installed at the ash filling port 1 as needed, allowing for easy closure after replenishment to prevent interference with airflow within the baghouse dust collector and to prevent powder and / or dust from escaping from the ash filling port 1 during operation.

[0021] Before starting the baghouse dust collector of this utility model, the dust for protecting the filter bags 106 is first added into the dust hopper 103 of the dust collector through the dust filling port 1. Then, the compressed air source connected to the fan 104 and the first air inlet 9 is turned on, so that the dust in the dust hopper 103 can be densely distributed on the surface of the filter bags 106. Then, the dust suction pipe 107 is turned on to suck up the dust from the external environment. After the dust with sticky substances enters the dust box 102 of the dust collector, the sticky substances stick together and become heavier. Then, they fall downwards under the action of gravity. A large amount of sticky substances are unloaded through the feeder 2, and a small amount of sticky substances fall into the screening chamber 3 and then into the waste bin 4, which is convenient for cleaning after the operation is completed. The filter bag 106, protected by the powder, avoids direct contact with sticky substances, thus protecting the bag, extending its lifespan, and ensuring its normal operation even in conditions containing sticky substances. This guarantees both dust removal efficiency and extends the dust removal efficiency of the filter bag, the core component of the dust collector. Furthermore, this application utilizes the dust collector hopper 103 within the baghouse dust collector as a powder silo, combining the dust collector hopper 103 and the powder silo into one unit. This avoids adding unnecessary power equipment, only increasing the amount of compressed air used, and does not increase the floor space, effectively controlling costs.

[0022] As a preferred embodiment of this invention, it should be further explained that a control valve 6 is provided at the upper end of the feeder 2 and / or the lower end of the dust collector hopper 103. That is, the control valve 6 can be provided at the upper end of the feeder 2 or the lower end of the dust collector hopper 103, or both the upper end of the feeder 2 and the lower end of the dust collector hopper 103 can be provided. This facilitates the control of the connection between the feeder 2 and the dust collector hopper 103 through the control valve 6. In practice, the compressed air source is turned on before the control valve 6 is opened to ensure that the powder in the dust collector hopper 103 is densely distributed on the surface of the filter bag 106 and will not fall off, thus protecting the surface of the filter bag 106. Then the control valve 6 is opened.

[0023] As a preferred embodiment of this example, it should be further explained that the control valve 6 is a slide gate valve, also known as a manual knife gate valve. The advantage of this valve is that the valve body has no grooves, the medium will not be blocked, and it has full-bore flow characteristics, which ensures that the compressed air source can better impact the powder in the dust collector hopper 103, and also allows the sticky substances falling into the dust collector hopper 103 to fall smoothly into the feeder 2, instead of falling onto the control valve 6 and affecting the use of the control valve 6.

[0024] As a preferred embodiment of this invention, it should be further noted that the lower end of the waste bin 4 is connected to a discharge valve 7. Normally, the discharge valve 7 remains closed. It is opened only after the bag filter stops working to discharge the viscous material accumulated in the waste bin 4. Preferably, the discharge valve 7 can also be a slide gate valve, which can better discharge all the adhesive material in the waste bin 4.

[0025] As a preferred embodiment of this invention, it should be further explained that a spray pipe 8 is provided on the side of the screening chamber 3. The end of the spray pipe 8 away from the screening chamber 3 is connected to the dust collection pipe 107, and the other end of the spray pipe 8 is provided with a second air inlet 5 connected to a compressed air source. In practice, the pressure of the compressed air source connected to the second air inlet 5 can be controlled. The pressure can be adjusted according to the density and surface area of ​​the ash clumps formed by the viscous material, so that the viscous material falling into the screening chamber 3 can fall into the waste bin 4, while the lighter powder is blown into the spray pipe 8 and enters the dust collection pipe 107 through the spray pipe 8. Then, it enters the dust collector ash hopper 103 through the dust collection pipe 107 for reuse, achieving the purpose of powder recycling. The spray pipe 8 is located opposite to the second air inlet 5, so that the compressed air source can more easily blow the powder that is not adhered to the viscous material into the spray pipe 8 after entering the screening chamber 3. This allows the pressure of the compressed air source to be controlled lower during use, reducing the amount of compressed air used.

[0026] As a preferred embodiment of this invention, it should be further explained that the first air inlet 9 is connected to the compressed air source through the first regulating valve 10, and the second air inlet 5 is connected to the compressed air source through the second regulating valve 11; the bag filter also includes a controller 12, which is electrically connected to the first regulating valve 10, the second regulating valve 11 and the feeder 2, so as to realize intelligent control of the compressed air source and make the equipment operation simpler.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A baghouse dust collector suitable for dust containing sticky substances, comprising a baghouse dust collector body, the baghouse dust collector body comprising a dust collector clean box (101), a dust collector dust box (102), and a dust collector hopper (103) connected sequentially from top to bottom, the dust collector clean box (101) being connected to a chimney (105) via a fan (104), filter bags (106) being installed inside the dust collector dust box (102), and a dust collection pipe (107) being connected to one side of the dust collector hopper (103); characterized in that, The dust collector hopper (103) is provided with a ash filling port (1) and a first air inlet (9) connected to a compressed air source on its outer wall. A feeder (2) is connected to the lower end of the dust collector hopper (103). A screening bin (3) is connected to the lower end of the feeder (2). A waste bin (4) is connected to the lower end of the screening bin (3).

2. A bag filter dust collector suitable for dust containing sticky substances, as described in claim 1, is characterized in that, A control valve (6) is provided at the upper end of the feeder (2) and / or the lower end of the dust collector hopper (103).

3. A bag filter dust collector suitable for dust containing sticky substances, as described in claim 2, is characterized in that... The control valve (6) is a slide gate valve.

4. A bag filter dust collector suitable for dust containing sticky substances, as described in claim 1, is characterized in that... The lower end of the waste bin (4) is connected to a discharge valve (7).

5. A bag filter dust collector suitable for dust containing sticky substances, as described in claim 1, characterized in that, The side of the screening chamber (3) is provided with a spray pipe (8). One end of the spray pipe (8) away from the screening chamber (3) is connected to the dust suction pipe (107), and the other end of the spray pipe (8) is provided with a second air inlet (5) connected to the compressed air source.

6. A bag filter dust collector suitable for dust containing sticky substances, as described in claim 1, is characterized in that, The first air inlet (9) is connected to the compressed air source through the first regulating valve (10), and the second air inlet (5) is connected to the compressed air source through the second regulating valve (11). The bag filter also includes a controller (12), which is electrically connected to the first regulating valve (10), the second regulating valve (11), and the feeder (2).

Images