Line spraying pulse bag-type dust collector

Abstract

The utility model relates to a line spraying pulse bag-type dust collector which comprises a machine shell, a horizontal plate is fixedly arranged in the machine shell, an inner cavity of the machine shell is divided into a clean chamber and a dirty chamber by the horizontal plate, a plurality of connecting holes are formed in a matrix mode, a filter cylinder is installed at each connecting hole, and the line spraying pulse bag-type dust collector further comprises a vertically-arranged cylinder body and an air inlet pipe. Dust-containing gas flows into the dirty chamber through the gas inlet pipe and then flows into the spiral pipeline in the cylinder body, the spiral pipeline is tightly attached to the inner wall of the filter cylinder and extends downwards in a spiral shape, and the design promotes gas flow to form vortex rotating at a high speed. Under the action of centrifugal force, dust is thrown to the inner wall of the barrel and slides to the first opening in the bottom. And the gas reversely flows upwards along the inclined wall surface of the conical shell, so that primary separation of the dust and the gas is completed, and a first treatment process is formed. And then the gas continuously passes through the filter cartridge and enters the clean chamber, and the process further purifies the gas to form a second treatment process.

Description

Technical Field

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

[0002] Dust-laden gas enters the dust collector through the inlet duct. Through a combination of mechanisms including inertia, collision, interception, and electrostatics, dust particles are adsorbed and deposited on the surface of the filter bags. Over time, the dust layer on the filter bag surface gradually thickens. Once a critical value is reached, it severely hinders dust removal efficiency and interferes with stable equipment operation. At this point, the pulse valve activates, releasing high-pressure gas. This gas is injected through the connecting pipe, flowing at high speed along the length of the filter bag from bottom to top, causing the filter bag to expand rapidly and vibrate at high frequency, effectively removing the accumulated dust from the filter cartridge. However, in the current process, the inlet duct directly delivers high-concentration dust-laden gas into the dust collector, lacking a necessary pretreatment step. Dust particles directly impact the filter bags at a high concentration, leading to rapid dust accumulation and frequent triggering of the cleaning pulse mechanism. This not only increases energy consumption but also exacerbates the mechanical fatigue of the filter bags, shortening their service life. Utility Model Content

[0003] The main purpose of this utility model is to provide a pulse jet bag filter to solve the problem in the current process of the prior art, where the air inlet pipe directly sends high-concentration dust-laden gas into the dust collector, lacking the necessary pretreatment step.

[0004] To achieve the above objectives, this utility model provides a pulse jet bag filter dust collector, including a housing, a horizontal plate fixed inside the housing, the horizontal plate dividing the inner cavity of the housing into a clean chamber and a dirty chamber, and multiple connecting holes are opened in a matrix, with a filter cartridge installed at each connecting hole, and also includes a vertically arranged cylinder and an air inlet pipe.

[0005] The cylinder is located directly below multiple filter cartridges and is fixed in the dirty chamber by a frame;

[0006] The bottom of the cylinder is a conical shell structure, and a top hole is opened at the top.

[0007] The flared end of the conical shell structure faces the horizontal plate, and the bottom end is the first opening;

[0008] One end of the air inlet pipe passes through the internal chamber and the cylinder, which is connected to the spiral tube.

[0009] The spiral tube is arranged downwards along the inner wall of the filter cartridge, with the air outlet facing the inner wall of the conical shell structure.

[0010] Preferably, the conical shell structure has a conical end that is coaxially connected to the drainage tube.

[0011] Preferably, the housing includes a rectangular shell with a second opening at the bottom, a funnel connected to the bottom end of the rectangular shell, a rectangular tube connected to the closing end of the funnel, and a switch valve installed on the rectangular tube.

[0012] Preferably, the frame includes a ring plate, the inner ring of which is welded with the ring wall of the cylinder, and multiple support rods are fixed around the outer ring.

[0013] Multiple support rods are erected on the inner wall of the funnel.

[0014] Preferably, it also includes a pulse body and a main tube;

[0015] One end of the main tube is connected to the pulse body, and the other end passes through the clean room and connects to multiple branch tubes;

[0016] Multiple branch pipes correspond one-to-one with the connecting holes, and the air outlet of each branch pipe is located directly above the connecting hole.

[0017] Preferably, a certain distance is reserved between the air outlet end of the branch pipe and the connecting hole.

[0018] Preferably, the switching valve includes two slide plates;

[0019] Two through slots are opened on one side wall of the rectangular tube along its length, and a sliding plate is slidably installed in each through slot;

[0020] One end of the slide plate is slidably mounted in the through groove via a drive component, and the other end can abut against the opposite side wall of the rectangular tube with the through groove, so that the slide plate covers the rectangular tube.

[0021] Preferably, the driving component includes a cylinder, the piston rod of the cylinder is fixedly connected to one end of the slide plate via a connecting plate, and the cylinder seat is fixedly connected to the side wall of the rectangular tube.

[0022] Preferably, an exhaust pipe is installed connecting the clean room.

[0023] Preferably, multiple arc-shaped grooves are formed on the top circumference of the annular wall of the cylinder.

[0024] The beneficial effects of the above scheme are:

[0025] Dust-laden gas enters the dirty chamber through the inlet pipe and then flows into the spiral pipe inside the filter cartridge. The spiral pipe is tightly attached to the inner wall of the cartridge and extends downwards in a spiral shape. This design causes the airflow to form a high-speed rotating vortex. Under the strong centrifugal force, large dust particles are thrown against the inner wall of the cartridge and then slowly slide down the inclined wall of the conical shell structure to the first opening at the bottom. Simultaneously, the gas flows upwards along the inclined wall of the conical shell, thus completing the initial separation of dust and gas, forming the first treatment process. Subsequently, the gas continues to pass through the filter cartridge and enters the clean chamber, where it is further purified, forming the second treatment process. Attached Figure Description

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0028] Figure 2 This is a front view structural diagram of the present invention;

[0029] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0030] Figure 4 This is a partial structural schematic diagram of the present invention;

[0031] Figure 5 yes Figure 4 A cross-sectional structural diagram.

[0032] Explanation of reference numerals in the attached figures

[0033] 10. Casing; 11. Horizontal plate; 12. Clean chamber; 13. Dirty chamber; 110. Connecting hole; 14. Rectangular shell; 15. Funnel; 16. Rectangular tube; 160. Through groove; 17. Switch valve; 170. Slide plate; 171. Connecting plate; 18. Drive component; 19. Second opening; 20. Filter cartridge; 30. Cylinder body; 31. Conical shell structure; 32. Top hole; 33. First opening; 34. Arc groove; 40. Frame; 41. Ring plate; 42. Support rod; 50. Inlet pipe; 51. Spiral tube; 60. Drain pipe; 70. Pulse body; 71. Main pipe; 72. Branch pipe; 80. Outlet pipe. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. Example

[0035] like Figures 1-5 As shown, this embodiment provides a pulse jet bag filter dust collector, including a housing 10, as... Figure 3 As shown, a horizontal plate 11 is fixed inside the casing 10, dividing the inner cavity of the casing 10 into a clean chamber 12 and a dirty chamber 13. The horizontal plate 11 has multiple connecting holes 110, each housing a filter cartridge 20. The pulse jet bag filter also includes a vertically arranged cylinder 30 and an inlet pipe 50. The cylinder 30 is located directly below the multiple filter cartridges 20 and is fixed inside the dirty chamber 13 by a frame 40. Figures 3-5As shown, the bottom of the cylinder 30 is a conical shell structure 31, and a top hole 32 is opened at the top of the cylinder 30. Multiple arc-shaped grooves 34 are opened on the top circumference of the annular wall of the cylinder 30. The flared end of the conical shell structure 31 faces the horizontal plate 11, and the bottom end of the conical shell structure 31 is the first opening 33. One end of the air inlet pipe 50 passes through the dirty chamber 13 and is connected to the spiral pipe 51 in the cylinder 30. The spiral pipe 51 is arranged spirally downward along the inner wall of the filter cylinder 20, and the air outlet end of the spiral pipe 51 faces the inner wall of the conical shell structure 31. The constricted end of the conical shell structure 31 is coaxially connected to the drain pipe 60. The clean chamber 12 is connected to the air outlet pipe 80. The treated gas is discharged to the outside or enters the next process through the air outlet pipe 80.

[0036] Dust-laden gas enters the dirty chamber 13 through the inlet pipe 50, and then flows into the spiral tube 51 inside the cylinder 30. The spiral tube 51 is attached to the inner wall of the filter cartridge 20 and extends downwards in a spiral shape, a design that causes the airflow to form a high-speed rotating vortex. Under the strong centrifugal force, large dust particles are thrown against the inner wall of the cylinder 30, and then slowly slide down along the inclined wall of the conical shell structure 31 to the first opening at the bottom. Simultaneously, the gas flows upwards along the inclined wall of the conical shell, thus completing the initial separation of dust and gas, forming the first treatment process. Subsequently, the gas continues to pass through the filter cartridge 20 into the clean chamber 12, a process that further purifies the gas, forming the second treatment process. This avoids the problem of frequent triggering of the cleaning pulse mechanism in existing technologies.

[0037] like Figure 2 As shown, the housing 10 includes a rectangular shell 14 with a second opening 19 at the bottom. A funnel 15 is connected to the bottom end of the rectangular shell 14, and a rectangular tube 16 is connected to the constricted end of the funnel 15. A switch valve 17 is installed on the rectangular tube 16. The frame 40 includes an annular plate 41. The inner ring of the annular plate 41 is welded with the annular wall of the cylinder 30, and multiple support rods 42 are fixed to the outer circumference of the annular plate 41. The multiple support rods 42 are supported on the inner wall of the funnel 15. Figure 1As shown, the switching valve 17 includes two slide plates 170. Two through slots 160 are formed along the length of one side wall of the rectangular tube 16, and a slide plate 170 is slidably mounted in each through slot 160. One end of the slide plate 170 is slidably mounted within the through slot 160 via a drive member 18, and the other end of the slide plate 170 abuts against the opposite side wall of the rectangular tube 16 with the through slot 160, thus shielding the rectangular tube 16. The drive member 18 includes a cylinder, the piston rod of which is fixedly connected to one end of the slide plate 170 via a connecting plate 171, and the cylinder seat is fixedly connected to the side wall of the rectangular tube 16. In the initial configuration, the two slide plates 170 are tightly pressed against the opposite side of the rectangular tube 16 equipped with the through slots 160, together forming a closed space within the rectangular tube 16. Airborne particulate dust is thrown towards the inner wall of the cylinder 30 under rotational action, and then this dust slowly slides down the inclined surface of the conical shell structure 31 until it reaches the first opening 33 at the bottom. Next, the dust continues to fall onto the upper slide plate 170. At this time, the upper cylinder is activated, which drives its corresponding slide plate 170 to slide via the connecting plate, thereby opening the upper slide plate 170 and allowing the dust to fall into the lower slide plate 170. Subsequently, the upper slide plate 170 is closed and the lower slide plate 170 is opened, allowing the dust to be smoothly discharged outside the rectangular tube 16, thus efficiently completing the ash unloading operation while ensuring that the dirty chamber 13 maintains a negative pressure state.

[0038] like Figure 1 , Figure 3 As shown, the pulse jet bag filter also includes a pulse body 70 and a main pipe 71. One end of the main pipe 71 is connected to the pulse body 70, and the other end of the main pipe 71 passes through the clean chamber 12 and connects to multiple branch pipes 72. Each branch pipe 72 corresponds one-to-one with a connecting hole 110, and the outlet end of each branch pipe 72 is located directly above the connecting hole 110. The pulse body 70 in this invention adopts the existing pulse jet body technology, so it will not be described in detail. Refer to patent public notice CN112642233B - Chinese Invention Patent: A Pulse Jet Mechanism for a Pulse Jet Bag Filter, or CN111350864B - Chinese Invention Patent: An Intelligent Electromagnetic Pulse Valve. A certain distance is reserved between the outlet end of the branch pipe 72 and the connecting hole 110.

[0039] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A pulse jet bag filter dust collector, comprising a housing, wherein a horizontal plate is fixedly installed inside the housing, the horizontal plate dividing the inner cavity of the housing into a clean chamber and a dirty chamber, and a plurality of connecting holes are provided in a matrix, wherein a filter cartridge is installed at each connecting hole, characterized in that, Also includes: A vertically arranged cylindrical body is located directly below the plurality of filter cartridges and is fixed in the dirty chamber by a frame; The bottom of the cylinder is a conical shell structure, and a top hole is opened at the top. The flared end of the conical shell structure faces the horizontal plate, and the bottom end is the first opening; An air intake pipe, one end of which is sequentially inserted into the internal chamber and the cylindrical body connected spiral tube; The spiral tube is arranged downwards along the inner wall of the filter cartridge, and the air outlet is facing the inner wall of the conical shell structure.

2. The pulse jet bag filter dust collector according to claim 1, characterized in that, The conical shell structure has a conical end that is coaxially connected to the drainage tube.

3. The pulse jet bag filter dust collector according to claim 1, characterized in that, The housing includes a rectangular shell with a second opening at the bottom. A funnel is connected to the bottom end of the rectangular shell, and a rectangular tube is connected to the narrowed end of the funnel. A switch valve is installed on the rectangular tube.

4. The pulse jet bag filter dust collector according to claim 3, characterized in that, The frame includes a ring plate, the inner ring of which is welded with the ring wall of the cylinder, and a plurality of support rods are fixed around the outer ring. Multiple support rods are erected on the inner wall of the funnel.

5. The pulse jet bag filter dust collector according to claim 1, characterized in that, It also includes the pulse body and the main pulse generator; One end of the main tube is connected to the pulse body, and the other end passes through the clean room and connects to multiple branch tubes; Each of the branch pipes corresponds to one of the connecting holes, and the outlet of each branch pipe is located directly above the connecting hole.

6. The pulse jet bag filter dust collector according to claim 5, characterized in that, A certain distance is reserved between the air outlet end of the branch pipe and the connecting hole.

7. The pulse jet bag filter dust collector according to claim 3, characterized in that, The switching valve includes two slide plates; Two through slots are formed on one side wall of the rectangular tube along its length, and the sliding plate is slidably disposed in each of the through slots; One end of the slide plate is slidably disposed in the through groove by a drive component, and the other end can abut against one side wall of the rectangular tube, so that the slide plate covers the rectangular tube.

8. The pulse jet bag filter dust collector according to claim 7, characterized in that, The driving component includes a cylinder, the piston rod of which is fixedly connected to one end of the slide plate via a connecting plate, and the cylinder seat is fixedly connected to the side wall of the rectangular tube.

9. The pulse jet bag filter dust collector according to claim 7, characterized in that, The clean room is connected to an air vent pipe.

10. The pulse jet bag filter according to claim 1, characterized in that, Multiple arc-shaped grooves are formed on the top circumference of the annular wall of the cylinder.

Images