Rotary injection and smoke filtering device of electric bag composite dust collector

Abstract

This utility model discloses a rotary pulse jet flue gas filtration device for an electrostatic precipitator and a bag filter, relating to the field of bag filter technology, and includes a jet jet tank. A rotating mechanism is provided on the lower surface of the jet jet tank, and a jet jet structure is provided on the lower surface of the rotating mechanism. An air inlet pipe is provided on the outer surface of the jet jet tank. Compared with the existing rotary pulse jet mechanism of ordinary bag filters, this rotary pulse jet flue gas filtration device for an electrostatic precipitator and a bag filter reduces the impact of wind on filter device one and filter device two by installing a horizontally placed filter plate inside the filter cylinder. Without reducing the wind speed, filter device one with a corrugated filter plate filters dust in the airflow, ensuring filtration effect while reducing damage to the filter plate caused by wind speed, improving the service life of filter device one and filter device two, and also purifying the air, preventing dust from adhering to the surface of the filter bag and causing damage.

Description

Technical Field

[0001] This utility model relates to the field of bag filter technology, specifically to a rotary jet flue gas filtration device for an electrostatic precipitator-bag filter composite dust collector. Background Technology

[0002] The electrostatic precipitator-baghouse hybrid dust collector is a high-efficiency dust removal device that combines electrostatic precipitator technology and baghouse dust removal technology. It uses an electric field to pre-charge the dust in the flue gas, so that most of the dust is collected under the action of the electric field force. The remaining fine dust is further captured by the filter bag, thus achieving high-efficiency dust removal. It has the advantages of high dust removal efficiency, stable operation, and adaptability to various working conditions.

[0003] For example, patent application number 201620981970.9 discloses a rotary pulse jet cleaning mechanism for a bag filter. A utility model discloses a rotary pulse jet cleaning mechanism for a bag filter, including a jet pipe, a rotating mechanism, a jet tank, and a large-diameter pulse valve. The lower end of the jet pipe is provided with a jet branch pipe, which is horizontally arranged. Multiple jet branch pipes are symmetrically installed at the lower end of the jet pipe, and multiple nozzles are spaced along the length of each jet branch pipe. This rotary pulse jet cleaning mechanism for the bag filter is flexible in rotation, simple in structure, and ensures the production cycle of the bag filter. When used with a bag filter, this mechanism provides significant dust removal. However, before cleaning the filter bags, external air needs to be introduced into the inner wall of the jet cleaning mechanism to blow air into the inside of the filter bags. If the dust in the air is not filtered, the dust-laden air will enter the inner surface of the filter bags and contaminate them.

[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings, and proposed a rotary jet flue gas filtration device for an electrostatic precipitator-baghouse composite dust collector. Utility Model Content

[0005] The purpose of this invention is to provide a rotary jet flue gas filtration device for an electrostatic precipitator / baghouse composite dust collector to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rotary jet flue gas filtration device for an electrostatic precipitator / baghouse composite dust collector, comprising a jet tank body, a rotating mechanism provided on the lower surface of the jet tank body, and a jetting structure provided on the lower surface of the rotating mechanism, an air inlet pipe provided on the outer surface of the jet tank body, and a threaded groove first spirally installed on the outer surface of the air inlet pipe, a positioning ring provided on the end surface of the air inlet pipe, and a filter cylinder slidably installed on the outer surface of the positioning ring, and a sealing ring provided at the connection between the filter cylinder and the positioning ring, a filter device first slidably installed on the inner surface of the filter cylinder, and a threaded groove second provided on the outer surface of the filter cylinder.

[0007] Preferably, a connecting sleeve is spirally installed on the outer surface of the second threaded groove, and the filter cylinder and the positioning ring are fixedly connected by the connecting sleeve.

[0008] Preferably, the filter plate on the inner surface of the first filter device is configured as a horizontal plate, and the surface of the filter plate of the first filter device is configured as corrugated.

[0009] Preferably, a second filter is disposed on the surface of the first filter device, and the spacing of the filter plates disposed inside the second filter device is opposite to the spacing of the filter plates disposed inside the first filter device.

[0010] Preferably, the rear surface of the filter device is provided with a plurality of shock-absorbing pads, and the shock-absorbing pads are made of rubber material.

[0011] Preferably, the rear surface of the shock-absorbing pad is provided with a limiting slide bar, and the outer surface of the limiting slide bar slides through a fixing ring, and the fixing ring is fixedly connected to the inner surface of the filter cylinder.

[0012] Preferably, a damping shock absorber is provided on the outer surface of the rear end of the limiting slide rod, and the damping shock absorber is composed of a damper, a damping spring and a damping pad.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the arrangement of a spray tank, a rotating mechanism, a spray structure, an air inlet pipe, a threaded groove one, a positioning ring, a sealing ring, a filter cylinder, a threaded groove two, a connecting sleeve, a filter device one, and a filter device two, reduces the impact of wind on filter device one and filter device two by installing a horizontally placed filter plate inside the filter cylinder. Without reducing the wind speed, filter device one with a corrugated filter plate filters dust in the airflow, ensuring filtration effect while reducing damage to the filter plate caused by wind speed, thus improving the service life of filter device one and filter device two. It also purifies the air and prevents dust from adhering to the surface of the filter bag and causing damage. The connecting sleeve allows the filter cylinder to be quickly connected to the surface of the air inlet pipe for fixation, and also facilitates the quick removal of the filter cylinder for maintenance and replacement of filter device one and filter device two.

[0015] 2. This utility model, through the setting of a fixed ring, a limiting slide rod, a shock-absorbing pad, and a damping shock absorber, provides shock absorption protection for the second filter device by contacting the fixed ring when the wind force is too strong. The damping shock absorber significantly reduces the vibration and impact force generated when high-speed airflow impacts the filter plate through the frictional damping force, extending the service life of the filter plate. At the same time, it helps to maintain the stability of the filter plates installed inside the first and second filter devices, reducing positional displacement or shaking caused by vibration, allowing the filter plates to better perform their filtering function and ensuring consistent filtration effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the filter cartridge of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the second filter device of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Injection tank body; 101. Rotating mechanism; 102. Injection structure; 2. Air inlet pipe; 201. Threaded groove one; 202. Positioning ring; 203. Sealing ring; 204. Filter cylinder; 205. Threaded groove two; 206. Connecting sleeve; 207. Filter device one; 208. Filter device two; 3. Fixing ring; 301. Limiting slide rod; 302. Vibration-absorbing pad; 303. Damping shock absorber. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-3As shown, a rotary jet flue gas filtration device for an electrostatic precipitator / baghouse hybrid dust collector includes a rotating mechanism 101 on the lower surface of a jet tank 1, and a jetting structure 102 on the lower surface of the rotating mechanism 101. An air inlet pipe 2 is provided on the outer surface of the jet tank 1, and a threaded groove 201 is spirally installed on the outer surface of the air inlet pipe 2. A positioning ring 202 is provided on the end surface of the air inlet pipe 2, and a filter cartridge 204 is slidably installed on the outer surface of the positioning ring 202. A sealing ring 203 is provided at the connection between the filter cartridge 204 and the positioning ring 202. The advantage of this arrangement is that the positioning ring 202 facilitates the positioning and installation of the filter cartridge 204, preventing misalignment during installation.

[0023] Furthermore, a filter device 207 is slidably mounted on the inner surface of the filter cartridge 204, and a threaded groove 205 is provided on the outer surface of the filter cartridge 204. A connecting sleeve 206 is spirally mounted on the outer surface of the threaded groove 205, and the filter cartridge 204 and the positioning ring 202 are fixedly connected by the connecting sleeve 206. The advantage of this setting is that the filter cartridge 204 can be quickly connected to the surface of the air intake pipe 2 for fixing by the connecting sleeve 206. At the same time, it is also convenient to quickly remove the filter cartridge 204 later for maintenance and replacement of the filter device 207 and the filter device 208.

[0024] Furthermore, the filter plate on the inner surface of filter device 207 is set as a horizontal plate, and the surface of the filter plate of filter device 207 is set as corrugated. The advantage of this setting is that by installing a horizontally placed filter plate inside the filter cylinder 204, the impact of wind on filter device 207 and filter device 208 can be reduced. Without reducing the wind speed, the filter device 207 with the corrugated filter plate filters the dust in the airflow, which can ensure the filtration effect while reducing the damage to the filter plate caused by the wind speed, improving the service life of filter device 207 and filter device 208, and also purifying the air, preventing dust from adhering to the surface of the filter bag and causing damage to the filter bag.

[0025] Furthermore, a second filter device 208 is provided on the surface of the first filter device 207, and the spacing of the filter plates inside the second filter device 208 is opposite to that inside the first filter device 207. The advantage of this arrangement is that by providing the second filter device 208 on the rear surface of the first filter device 207, the contact between the filter plates and the air can be improved, thereby increasing the filtration effect.

[0026] like Figure 4 As shown, the rear surface of the filter device 207 is provided with multiple shock-absorbing pads 302, and the shock-absorbing pads 302 are made of rubber material. The advantage of this arrangement is that, by setting the shock-absorbing pads 302, they can absorb shock by contacting the fixing ring 3 when the wind force is too strong, thus protecting the filter device 208 from shock.

[0027] Furthermore, the rear surface of the shock-absorbing pad 302 is provided with a limiting slide bar 301, and the outer surface of the limiting slide bar 301 slides through a fixing ring 3, and the fixing ring 3 is fixedly connected to the inner surface of the filter cylinder 204. The advantage of this setting is that the sliding direction of the limiting slide bar 301 can be restricted by the setting of the fixing ring 3, so as to prevent it from shifting and loosening.

[0028] Furthermore, a damping shock absorber 303 is provided on the outer surface of the rear end of the limiting slide bar 301. The damping shock absorber 303 is composed of a damper, a damping spring, and a damping pad. The advantage of this setting is that, through the damping shock absorber 303, the vibration and impact force generated when high-speed airflow impacts the filter plate can be significantly reduced by the frictional damping force generated, thus extending the service life of the filter plate. At the same time, it helps to maintain the stability of the filter plates installed inside the filter device 1 207 and the filter device 2 208, reducing positional displacement or shaking caused by vibration, so that the filter plate can better perform its filtering function and ensure the consistency of the filtering effect.

[0029] Working Principle: When using the rotary pulse-jet cleaning system of this electrostatic precipitator / baghouse hybrid dust collector, the pulse-jet cleaning structure 102 first performs dust removal on the filter bags. The pulse-jet tank 1 serves as the core air source, drawing in air through the inlet pipe 2. When outside air enters the system through the inlet pipe 2, it passes through the filter cartridge 204 in an orderly manner. During this process, the air sequentially passes through filter device one 207 and filter device two 208. Both devices are equipped with horizontally placed corrugated filter plates. With this double-layer filtration design, dust in the air can be efficiently intercepted and separated, ensuring that the air cleanliness of subsequent stages meets the standards.

[0030] However, when air passes through filter device 207 and filter device 208 at high speed, a significant impact force is generated. At this time, the limiting slide rod 301 installed at the rear of the filter device slides along the inner surface of the filter cylinder 204. The damping shock absorber 303 mounted on the outer surface of the end of the limiting slide rod 301 can quickly generate damping force to buffer and decelerate the sliding filter device, effectively reducing the impact and damage caused by the high-speed airflow to the filter device, and ensuring the stability and service life of the filtration system. The air that has completed dust removal and filtration will smoothly enter the jet cleaning tank 1 and be transported to the jet cleaning structure 102 through the pipeline, ultimately achieving precise and efficient dust removal of the filter bag.

[0031] When maintenance is required on filter element 207 and filter element 208, the operation is very convenient. Simply rotate the connecting sleeve 206 in the opposite direction along the threaded groove 205 to make it spirally move away from the outer surface of the air inlet pipe 2. Then, the filter cartridge 204 can be easily pulled out from the outer surface of the positioning ring 202 of the air inlet pipe 2. This allows for quick and safe inspection, cleaning, or replacement of the filter cartridge 204 and its internal filter elements. This is the working principle of the rotary jet flue gas filtration device of the electrostatic precipitator / baghouse composite dust collector.

Claims

1. A rotating injection flue gas filter device of an electric bag composite dust collector, comprising an injection tank body (1), characterized in that, The lower surface of the spray tank (1) is provided with a rotating mechanism (101), and the lower surface of the rotating mechanism (101) is provided with a spray structure (102). The outer surface of the spray tank (1) is provided with an air inlet pipe (2), and the outer surface of the air inlet pipe (2) is spirally installed with a threaded groove (201). The end surface of the air inlet pipe (2) is provided with a positioning ring (202), and the outer surface of the positioning ring (202) is slidably installed with a filter cylinder (204). A sealing ring (203) is provided at the connection between the filter cylinder (204) and the positioning ring (202). The inner surface of the filter cylinder (204) is slidably installed with a filter device (207), and the outer surface of the filter cylinder (204) is provided with a threaded groove (205).

2. The rotating injection and flue gas filtering device of an electric-sack-composite dust collector according to claim 1, characterized in that, The outer surface of the threaded groove (205) is spirally fitted with a connecting sleeve (206), and the filter cylinder (204) and the positioning ring (202) are fixedly connected by the connecting sleeve (206).

3. The rotary jet flue gas filtration device for an electrostatic precipitator / baghouse composite dust collector according to claim 1, characterized in that, The filter plate on the inner surface of the filter device (207) is configured as a horizontal plate, and the surface of the filter plate of the filter device (207) is configured as corrugated.

4. The rotary jet flue gas filtration device for an electrostatic precipitator / baghouse composite dust collector according to claim 1, characterized in that, The surface of the first filter device (207) is provided with a second filter device (208), and the spacing of the filter plates inside the second filter device (208) is opposite to that inside the first filter device (207).

5. The rotating injection and flue gas filtration device of an electric bag composite dust collector according to claim 1, characterized in that, The rear surface of the filter device (207) is provided with a plurality of shock-absorbing pads (302), and the shock-absorbing pads (302) are made of rubber material.

6. The rotating injection and flue gas filtration device of an electric bag composite dust collector according to claim 5, characterized in that, The rear surface of the shock-absorbing pad (302) is provided with a limiting slide rod (301), and the outer surface of the limiting slide rod (301) slides through a fixing ring (3), and the fixing ring (3) is fixedly connected to the inner surface of the filter cylinder (204).

7. The rotary jet flue gas filtration device for an electrostatic precipitator / baghouse composite dust collector according to claim 6, characterized in that, The outer surface of the rear end of the limiting slide bar (301) is provided with a damping shock absorber (303), and the damping shock absorber (303) is composed of a damper, a damping spring and a damping pad.

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