A bag filter dust collector

Abstract

This utility model discloses a bag filter dust collector, designed with two air inlet pipes, one for primary use and one for backup, facilitating the addition of additional equipment to be processed. The technical solution is as follows: A bag filter dust collector includes a housing and a hopper. The hopper is located at the bottom of the housing and communicates with it. Multiple dust bags are housed inside the housing. A pulse backflushing device and an air outlet are located at the top of the housing. A discharge device is located at the bottom of the hopper. A first air inlet pipe and a second air inlet pipe are located at the end of the hopper facing away from the air outlet. The inner diameter of the first air inlet pipe is larger than that of the second air inlet pipe. This invention belongs to the field of dust removal technology.

Description

Technical Field

[0001] This utility model belongs to the field of dust removal technology, and more specifically, relates to a bag filter dust collector. Background Technology

[0002] A baghouse dust collector is a high-efficiency dry dust collection device that uses fiber filter bags to capture solid particles in dust-laden gas.

[0003] Patent 202310560570.5 discloses a bag filter dust collector, including a dust collection box, which is fixedly installed on a maintenance bracket. Dust collection bags are arranged in the dust collection box, and the bottom of the dust collection box is provided with a light phase outlet and a heavy phase outlet. The top of the dust collection box is provided with a pulse back-blowing structure for the dust collection bags, and the bottom of the dust collection box is provided with a lifting magnetic suction structure for the dust collection bags. A merging hopper is fixedly installed in the dust collection box and is located below a retainer. A separation cylinder is fixedly connected to the bottom of the merging hopper. The separation cylinder is provided with a centrifugal separation structure, and there are throwing outlets on both sides of the separation cylinder. A separation groove is fixedly connected to the throwing outlets, and there are converging pipe structures on both sides of the separation groove.

[0004] The aforementioned bag filter has only one exhaust gas inlet pipe, which is the standard design for existing bag filters. However, in practice, it is sometimes necessary to connect new equipment to the bag filter. If there is only one exhaust gas inlet pipe, the exhaust gas inlet pipe needs to be modified, which also involves the modification of the existing equipment's piping, making the process quite complicated. Utility Model Content

[0005] The main objective of this invention is to provide a baghouse dust collector with two air inlet pipes, one for primary use and one as a backup, facilitating the addition of additional equipment to be processed.

[0006] According to a first aspect of the present invention, a bag filter dust collector is provided, comprising a housing and a hopper, wherein the hopper is located at the bottom of the housing and communicates with the housing, a plurality of dust collection bags are provided inside the housing, a pulse backflushing device and an air outlet are provided at the upper part of the housing, a discharge device is provided at the bottom of the hopper, and a first air inlet pipe and a second air inlet pipe are provided at the end of the hopper facing away from the air outlet, wherein the inner diameter of the first air inlet pipe is larger than that of the second air inlet pipe.

[0007] In the aforementioned baghouse dust collector, the hopper includes a first end plate, a second end plate, and two side plates. The two side plates are arranged symmetrically. The first end plate connects one end of the two side plates, and the second end plate connects the other end of the two side plates. The first end plate, the second end plate, and the two side plates together form a funnel structure that is wider at the top and narrower at the bottom. The first air inlet pipe and the second air inlet pipe are both located on the first end plate.

[0008] In the aforementioned bag filter dust collector, the first end plate is divided into a first plate and a second plate along its vertical central axis, the first air inlet pipe is disposed on the first plate and extends at least partially to the second plate, and the second air inlet pipe is disposed on the second plate.

[0009] In the aforementioned baghouse dust collector, the distance between the axis of the first inlet pipe and the vertical central axis of the first end plate is not zero.

[0010] In the aforementioned bag filter dust collector, the first end plate is inclined inward from top to bottom, and the second end plate is arranged vertically.

[0011] The discharge device is a screw conveyor, and the discharge end of the screw conveyor is located on the side of the second end plate facing away from the first end plate.

[0012] In the aforementioned baghouse dust collector, the inner diameter of the first inlet pipe is 1.5 to 2 times the inner diameter of the second inlet pipe.

[0013] In the aforementioned baghouse dust collector, the housing is equipped with multiple explosion relief valves.

[0014] In the aforementioned baghouse dust collector, a first maintenance platform is provided on the housing, which is located below the pulse backflush device and above the explosion relief valve.

[0015] In the aforementioned baghouse dust collector, the top of the housing constitutes a second maintenance platform.

[0016] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0017] In this utility model, a first air inlet pipe and a second air inlet pipe are provided. The first air inlet pipe has a larger inner diameter and is the main pipe, which is connected to the equipment to be processed from the beginning. The second air inlet pipe has a smaller inner diameter and is a backup pipe, which can be connected to the equipment to be processed later without much modification. The equipment to be processed can also be added later.

[0018] Furthermore, the layout of the first and second air intake pipes has been optimized. Even if only the first air intake pipe is intake, the exhaust gas will cover all dust collection bags as much as possible. When both the first and second air intake pipes are intake, there will be no problem of excessive dust collection bag filtration in a certain area. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0021] Figure 2 This is another structural schematic diagram of the first embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the confluence bucket according to the first embodiment of this utility model;

[0023] Figure 4 This is a side view of the merging bucket according to the first embodiment of this utility model.

[0024] The figure labels for each figure are as follows:

[0025] 1. Housing; 11. First maintenance platform; 12. Second maintenance platform; 2. Converging hopper; 21. First end plate; 22. Second end plate; 23. Side plate; 3. Pulse backflushing device; 4. Air outlet; 5. Discharge device; 6. First air inlet pipe; 7. Second air inlet pipe; 8. Explosion relief valve. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0028] Reference Figures 1 to 4 As shown, a bag filter dust collector includes a housing 1 and a hopper 2. The hopper 2 is located at the bottom of the housing 1 and is connected to the housing 1. Multiple dust collection bags are provided inside the housing 1. The upper part of the housing 1 is provided with a pulse backflushing device 3 and an air outlet 4. The bottom of the hopper 2 is provided with a discharge device 5. The end of the hopper 2 facing away from the air outlet 4 is provided with a first air inlet pipe 6 and a second air inlet pipe 7. The inner diameter of the first air inlet pipe 6 is larger than that of the second air inlet pipe 7.

[0029] The first air intake pipe 6 has a larger inner diameter and is the main pipe, which is connected to the equipment to be treated from the beginning. The second air intake pipe 7 has a smaller inner diameter and is a backup pipe, which can be connected to the newly added equipment to be treated without much modification. It can also be used to add new equipment to be treated.

[0030] The exhaust port 4 is connected to the exhaust system. After the exhaust gas enters the merging hopper 2 from the first intake pipe 6 and the second intake pipe 7, it will flow upward, filter out the dust through the dust collection bag, and then be discharged from the exhaust port 4. The dust will fall into the merging hopper 2 and then be discharged through the discharge device 5. The pulse backwash device 3 uses air jets to clean the dust collection bag, causing the dust adhering to the dust collection bag to fall into the merging hopper 2.

[0031] In this embodiment, the hopper 2 includes a first end plate 21, a second end plate 22, and two side plates 23. The two side plates 23 are arranged symmetrically. The first end plate 21 is connected to one end of the two side plates 23, and the second end plate 22 is connected to the other end of the two side plates 23. The first end plate 21, the second end plate 22, and the two side plates 23 together form a funnel structure that is thicker at the top and thinner at the bottom. The discharge device 5 is connected to the lower end of the funnel structure, so that the dust will fall into the discharge device 5. The first air inlet pipe 6 and the second air inlet pipe 7 are both provided on the first end plate 21.

[0032] Specifically, the first end plate 21 is divided into a first plate and a second plate along its vertical central axis. The first air intake pipe 6 is disposed on the first plate and extends at least partially into the second plate. The second air intake pipe 7 is disposed on the second plate. The distance between the axis of the first air intake pipe 6 and the vertical central axis of the first end plate 21 is not zero.

[0033] The layout of the first air inlet pipe 6 and the second air inlet pipe 7 has been optimized. Even if only the first air inlet pipe 6 is intake, the exhaust gas will cover all the dust collection bags as much as possible. When both the first air inlet pipe 6 and the second air inlet pipe 7 are intake, there will be no problem of excessive dust collection bag filtration in a certain area.

[0034] In this embodiment, the first end plate 21 is inclined inward from top to bottom, and the second end plate 22 is arranged vertically;

[0035] The discharge device 5 is a screw conveyor, and the discharge end of the screw conveyor is located on the side of the second end plate 22 facing away from the first end plate 21.

[0036] The inclined first end plate 21 allows dust to slide into the screw conveyor, while the vertical second end plate 22 ensures that the discharge end of the screw conveyor is not below the hopper 2, facilitating maintenance.

[0037] In this embodiment, the inner diameter of the first air intake pipe 6 is 1.5 to 2 times the inner diameter of the second air intake pipe 7. The first air intake pipe 6 is the main one, and the second air intake pipe 7 is the backup one. Therefore, the inner diameter of the second air intake pipe 7 should not be too large, but it should still ensure smooth airflow.

[0038] In this embodiment, the housing 1 is equipped with multiple explosion relief valves 8, which can prevent excessive internal pressure from causing an explosion.

[0039] In this embodiment, a first maintenance platform 11 is provided on the housing 1. The first maintenance platform 11 is located below the pulse backflush device 3 and above the explosion relief valve 8. Maintenance personnel can walk onto the first maintenance platform 11 to maintain the pulse backflush device 3, and the explosion relief valve 8 will not threaten the personnel on the first maintenance platform 11.

[0040] Meanwhile, the top of the enclosure 1 forms a second maintenance platform 12. The top of the enclosure 1 has multiple openings, each covered with a lid. Maintenance personnel can open the lids on the maintenance platform to perform maintenance on the inside of the enclosure 1.

[0041] In this embodiment, guardrails are provided on the outer edges of both the first maintenance platform 11 and the second maintenance platform 12 to prevent personnel from falling.

[0042] In this embodiment, the housing 1 is provided with an installation plate, and the installation plate is provided with multiple through holes. Each through hole is equipped with a dust collection bag. The gas must pass through the through hole to reach the air outlet 4. Therefore, when passing through the through hole, it will come into contact with the dust collection bag and remove dust.

[0043] The pulse backflushing device 3 includes an air collection pipe, an air jet pipe, and a nozzle. The air collection pipe is located outside the housing 1 and above the first maintenance platform 11. The air jet pipe is connected to the air collection pipe and extends into the housing 1. The nozzle is connected to the air jet pipe, and the nozzle corresponds to the through hole. The air collection pipe is connected to an external air supply device so that the nozzle can spray air. The air jet from the nozzle backflushes the dust collection bag, causing the dust adhering to the dust collection bag to fall into the collection hopper 2.

[0044] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A bag dust collector, comprising a box and a collecting hopper, the collecting hopper being located at the bottom of the box and communicating with the box, a plurality of dust removal bags being arranged in the box, a pulse backflush device and an air outlet being arranged at the upper portion of the box, characterized in that, The bottom of the merging hopper is equipped with a discharge device, and the end of the merging hopper facing away from the air outlet is equipped with a first air inlet pipe and a second air inlet pipe, wherein the inner diameter of the first air inlet pipe is larger than that of the second air inlet pipe.

2. The baghouse according to claim 1, wherein The merging hopper includes a first end plate, a second end plate, and two side plates. The two side plates are arranged symmetrically. The first end plate connects one end of the two side plates, and the second end plate connects the other end of the two side plates. The first end plate, the second end plate, and the two side plates together form a funnel structure that is thicker at the top and thinner at the bottom. The first air inlet pipe and the second air inlet pipe are both located on the first end plate.

3. The bag filter dust collector according to claim 2, characterized in that, The first end plate is divided into a first plate and a second plate along its vertical central axis. The first air intake pipe is disposed on the first plate and extends at least partially into the second plate, and the second air intake pipe is disposed on the second plate.

4. The bag filter dust collector according to claim 3, characterized in that, The distance between the axis of the first intake pipe and the vertical central axis of the first end plate is not zero.

5. The bag filter dust collector according to claim 2, characterized in that, The first end plate is inclined inward from top to bottom, and the second end plate is arranged vertically. The discharge device is a screw conveyor, and the discharge end of the screw conveyor is located on the side of the second end plate facing away from the first end plate.

6. The bag filter dust collector according to claim 1, characterized in that, The inner diameter of the first intake pipe is 1.5 to 2 times the inner diameter of the second intake pipe.

7. The bag filter dust collector according to claim 1, characterized in that, The enclosure is equipped with multiple explosion relief valves.

8. The bag filter dust collector according to claim 7, characterized in that, The housing is equipped with a first maintenance platform, which is located below the pulse backflush device and above the explosion relief valve.

9. The bag filter dust collector according to claim 1, characterized in that, The top of the enclosure forms a second maintenance platform.

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