Tail gas treatment tower capable of automatically removing dust
By employing a localized, precise air blowing design and a 360° rotating dust removal system, the problem of localized filter bag clogging in traditional pulse-jet baghouse dust collectors during the treatment of high-humidity exhaust gases has been solved. This achieves efficient dust removal and stable equipment operation, while reducing maintenance costs.
Patent Information
- Application Number
- CN202520331668.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-27
AI Technical Summary
When dealing with high-humidity exhaust gas, traditional pulse-jet bag filters are prone to localized clogging of the filter bags, resulting in low dust removal efficiency. Furthermore, the large-area blowing method cannot accurately clear the blockage, increasing equipment operating costs and maintenance difficulty.
It adopts a localized precision air blowing and 360° rotation cleaning design. Through the combination of round pipes and strip ventilation pipes, combined with the drive mechanism, the filter bag can be rotated 360° to ensure precise cleaning of all parts of the filter bag. It uses a common submerged pulse valve pulse jet blowing device and a standard cylinder drive mechanism.
It improves dust removal accuracy and efficiency, enhances adaptability to high humidity exhaust gases, extends the service life of filter bags, reduces equipment maintenance costs and downtime, and ensures stable equipment operation.
Smart Images
Figure CN223914940U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tail gas treatment tower technical field especially relates to a tail gas treatment tower that can self dust removal. BACKGROUND
[0002] In industrial production, energy utilization and transportation and many other fields, tail gas emission is a common problem; tail gas usually contains a large amount of dust, particulate matter and other pollutants, if directly discharged into the atmosphere, will cause serious pollution to the environment, harm ecological balance and human health; Therefore, it is crucial to effectively treat tail gas to reduce pollutant emissions; Pulse bag filter as a common and efficient tail gas treatment equipment, plays an important role in the tail gas purification process; It uses the filtering effect of filter bag to intercept the dust in the tail gas on the filter bag surface, so as to realize gas-solid separation and achieve the purpose of purifying tail gas; However, in practical application, pulse bag filter faces some problems to be solved.
[0003] When treating tail gas with high humidity, the water vapor in the tail gas is easy to make the dust on the surface of the filter bag caked, causing the filter bag to be blocked; Moreover, this blockage often presents local characteristics, that is, only part of the filter bag area appears blockage phenomenon; The pulse blowing device in the traditional pulse bag filter, when carrying out reverse blowing dust removal, usually simultaneously blows a large area of the inner wall of several filter bags; This dust removal method has obvious disadvantages, since the blowing area is large, for the filter bag with only small-area local blockage, compressed gas cannot be accurately applied to the blocked part, resulting in low dust removal efficiency; A large amount of compressed gas is wasted in the unblocked area, while the blocked area cannot be impacted by enough airflow to remove dust, causing the filtering performance of the filter bag to gradually decrease, thereby affecting the normal operation of the entire tail gas treatment system, increasing the operation cost and maintenance difficulty of the equipment; In view of this, the present application provides a tail gas treatment tower that can self dust removal. CONTENT OF THE UTILITY MODEL
[0004] The main purpose of the utility model is to provide a tail gas treatment tower that can self dust removal, which can effectively solve the problems in the background art.
[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:
[0006] A tail gas treatment tower that can self dust removal, comprising a tower body, a pulse blowing device and a plurality of filter assemblies, the pulse blowing device is installed on one side of the top end of the tower body, the pulse blowing device is connected with the plurality of filter assemblies, the filter assembly comprises a filter bag, a circular pipe is coaxially connected in the filter bag, the top end of the circular pipe is connected with the gas outlet of the pulse blowing device, a strip-shaped ventilation pipe is fixedly connected on one side of the circular pipe, and a strip-shaped air outlet is arranged on the side of the strip-shaped ventilation pipe close to the inner wall of the filter bag.
[0007] The top end of the tower body is fixedly connected with a driving mechanism for driving the circular pipe to rotate coaxially in the filter bag by 360 degrees.
[0008] Preferably, the filter assembly further comprises a skeleton, an outer wall of the skeleton is supported and installed in an inner wall of the filter bag, a lower end of the skeleton is fixedly installed with a disc, the disc is provided with a circular hole, and a lower end of the circular pipe is coaxially and rotatably installed in the circular hole.
[0009] Preferably, a connecting pipe is fixedly installed at a top end of the skeleton, an upper end of the filter bag is open and closed and installed at a peripheral top end of the connecting pipe, the top end of the connecting pipe is provided with a rotating hole, a top end of the circular pipe is rotatably installed in the rotating hole, and an outer diameter of the circular pipe is smaller than an inner diameter of the connecting pipe.
[0010] Preferably, a plurality of blowing pipes are fixedly installed on the air pocket in the pulse blowing device, a plurality of vertical pipes are vertically communicated at lower ends of the blowing pipes, and a rotating joint is connected between the top end of the circular pipe and the vertical pipes.
[0011] Preferably, the driving mechanism comprises a plurality of air cylinders, a plurality of racks and a plurality of gears, the plurality of gears are coaxially and fixedly installed at a periphery of lower ends of the plurality of rotating joints, the plurality of racks are respectively and meshingly connected to one side of the plurality of gears, cylinder bodies in the air cylinders are fixedly connected with the outer wall of the tower body, and piston rods in the air cylinders are respectively and fixedly connected with the plurality of racks.
[0012] Preferably, sliding rods are fixedly installed at both ends of the rack, and the sliding rods are sealingly and slidably passed through the top end of the tower body.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] 1. Improve the precision and efficiency of dust removal
[0015] Local precise blowing: through the design of the circular pipe and the strip-shaped ventilation pipe, the compressed gas in the pulse blowing device can be closer to the inner wall of the filter bag for local blowing; when the filter bag is partially blocked, this precise blowing method can directly act on the blocked part, compared with the traditional large-area blowing method, the blocked dust can be more effectively removed, and the dust removal efficiency is significantly improved.
[0016] Comprehensive dust removal: the driving mechanism drives the circular pipe to rotate in the filter bag by 360 degrees, so that the strip-shaped ventilation pipe can blow and remove dust in the opposite direction at different positions of the filter bag; this ensures that each part of the filter bag can be fully cleaned, avoids the possible dust removal dead angle in the traditional method, and further improves the overall dust removal effect.
[0017] 2. Enhance the adaptability to special tail gas
[0018] Dealing with high humidity tail gas: for tail gas with high humidity, filter bags are more prone to clogging; the precise dust removal method of the tail gas treatment tower can effectively solve the problem of local clogging of filter bags caused by high humidity, ensuring stable operation and efficient dust removal of the equipment when treating high humidity tail gas.
[0019] 3、Improve equipment reliability and stability
[0020] Reduce filter bag damage: precise local blowing and comprehensive rotary dust removal method can avoid the excessive impact and damage to filter bags caused by traditional large-area blowing, prolong the service life of filter bags, and reduce the maintenance cost and frequency of replacing filter bags.
[0021] Stable operation guarantee: efficient dust removal function helps maintain good filtration performance of filter bags, making the operation of the equipment more stable, reducing equipment failure and downtime caused by filter bag clogging, and improving the continuity and reliability of production. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 is the overall structure schematic diagram of the utility model;
[0023] Figure 2 is the connection structure schematic diagram of the pulse blowing device and the plurality of filter assemblies in the utility model;
[0024] Figure 3 is the local connection structure schematic diagram of the pulse blowing device and the filter assembly in the utility model;
[0025] Figure 4 is the exploded view of the filter assembly in the utility model;
[0026] Figure 5 is the sectional view of the filter assembly in the utility model.
[0027] In the figure: 1, tower body; 2, pulse blowing device; 3, filter assembly; 301, filter bag; 302, skeleton; 303, disc; 304, round hole; 305, connecting pipe; 306, rotating hole; 4, round pipe; 401, strip-shaped ventilation pipe; 402, strip-shaped air outlet; 403, rotary joint; 5, driving mechanism; 501, air cylinder; 502, slide rod; 503, rack; 504, gear; 6, blowing pipe; 601, vertical pipe. DETAILED DESCRIPTION
[0028] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the following will further describe the utility model in combination with specific embodiments.
[0029] For example, Figures 1-5As shown in the figure, a self-dusting tail gas treatment tower, comprising a tower body 1, a pulse blowing device 2 and a plurality of filter assemblies 3, the pulse blowing device 2 is installed on one side of the top end of the tower body 1, the pulse blowing device 2 is connected with the plurality of filter assemblies 3, for providing compressed gas required for reverse blowing for the filter assemblies 3, to realize the dust removal function of the filter bag 301.
[0030] Reference Figure 4 and Figure 5 As shown in the figure, the filter assembly 3 comprises a filter bag 301 and a skeleton 302, the skeleton 302 is usually made of steel wire and other materials with certain strength and toughness, its function is to support the filter bag 301, prevent the filter bag 301 from collapsing under the action of negative pressure or airflow, and ensure the normal filtering function of the filter bag 301, the outer wall of the skeleton 302 is supported and installed in the inner wall of the filter bag 301, the lower end of the skeleton 302 is fixedly installed with a disc 303, the disc 303 is provided with a round hole 304, at the same time, the top end of the skeleton 302 is fixedly installed with a connecting pipe 305, the upper end opening of the filter bag 301 is closed and installed on the top end periphery of the connecting pipe 305, the sealing connection can be ensured by using sealing rubber strips or clamps, etc., to prevent gas leakage, the top end of the connecting pipe 305 is provided with a rotating hole 306.
[0031] Reference Figure 4 and Figure 5 As shown in the figure, the filter bag 301 is coaxially and rotatably connected with a circular pipe 4, the lower end of the circular pipe 4 is coaxially and rotatably installed in the round hole 304 of the disc 303, the top end of the circular pipe 4 is rotatably installed in the rotating hole 306 of the connecting pipe 305, and the outer diameter of the circular pipe 4 is smaller than the inner diameter of the connecting pipe 305, such design not only ensures that the circular pipe 4 can rotate flexibly in the filter bag 301, but also will not affect the installation and rotation due to the size being too large, the top end of the circular pipe 4 is connected with the gas outlet of the pulse blowing device 2, one side of the circular pipe 4 is fixedly connected with a strip-shaped ventilation pipe 401, the strip-shaped ventilation pipe 401 is provided with a strip-shaped air outlet 402 on the side close to the inner wall of the filter bag 301, through this structure, the compressed gas in the pulse blowing device 2 can enter the strip-shaped ventilation pipe 401 through the circular pipe 4, and then be blown out from the strip-shaped air outlet 402, to blow gas more close to the inner wall of the filter bag 301, to improve the precision of dust removal.
[0032] Reference Figure 2 and Figure 3 As shown in the figure, the pulse blowing device 2 adopts a commonly used type DMF-Y-76S submerged pulse valve pulse blowing device 2 in the market, a plurality of blowing pipes 6 are fixedly installed on the gas pocket in the device, the blowing pipes 6 are generally selected from seamless steel pipes, to ensure good air tightness and strength, the lower end of the blowing pipe 6 is vertically connected with a plurality of vertical pipes 601, a rotary joint 403 is connected between the top end of the circular pipe 4 and the vertical pipe 601, the rotary joint 403 can be selected from the TJC series rotary joint 403, which can realize 360° rotation of the circular pipe 4 while ensuring gas transmission.
[0033] Reference Figure 1 、 Figure 2 and Figure 3 As shown in the figure, the top end of the tower body 1 is fixedly connected with a driving mechanism 5 for driving the circular pipe 4 to rotate coaxially 360 degrees in the filter bag 301, the driving mechanism 5 comprises a plurality of air cylinders 501, a plurality of racks 503 and a plurality of gears 504, the air cylinder 501 can be selected from the SC series standard air cylinder 501, which has the advantages of compact structure and stable operation, the plurality of gears 504 are coaxially and fixedly installed at the periphery of the lower end of the plurality of rotary joints 403, the plurality of racks 503 are respectively meshingly connected to one side of the plurality of gears 504, the cylinder body in the air cylinder 501 is fixedly connected with the outer wall of the tower body 1, the piston rod in the air cylinder 501 is fixedly connected with the plurality of racks 503, in addition, the two ends of the rack 503 are fixedly installed with slide rods 502, the slide rods 502 are sealingly slid through the top end of the tower body 1, the sealing between the slide rod 502 and the tower body 1 can be achieved by using a rubber sealing ring, so as to prevent gas leakage, when the piston rod in the air cylinder 501 is extended or retracted, the rack 503 is driven to move linearly, through the meshing action of the rack 503 and the gear 504, the gear 504 is driven to rotate, and then the circular pipe 4 is realized to rotate 360 degrees in the filter bag 301, so that the strip-shaped air duct 401 can blow air reversely to different positions of the filter bag 301.
[0034] In the embodiment, when the tail gas enters the tower body 1, it is filtered by the filter bag 301 of the filter assembly 3, and the dust is intercepted on the outer surface of the filter bag 301, with the passage of time, the filter bag 301 may be partially blocked, especially when the humidity of the tail gas is high, at this time, the pulse blowing device 2 is started, the compressed gas enters the circular pipe 4 through the blowing pipe 6, the vertical pipe 601 and the rotary joint 403, and then blows air to the inner wall of the filter bag 301 through the strip-shaped air outlet 402 of the strip-shaped air duct 401, at the same time, the piston rod of the air cylinder 501 in the driving mechanism 5 is extended or retracted, the rack 503 is driven to move, the gear 504 is driven to rotate, and then the circular pipe 4 is driven to rotate 360 degrees in the filter bag 301, so as to realize accurate blowing and dust removal of different positions of the filter bag 301, and improve the dust removal efficiency.
[0035] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, the above embodiments and the description in the specification are only to illustrate the principle of the present application, without departing from the spirit and scope of the present application, the present application can also have various changes and improvements, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A self-dust-removing exhaust gas treatment tower, comprising a tower body (1), a pulse jet cleaning device (2), and a plurality of filter components (3), wherein the pulse jet cleaning device (2) is installed on one side of the top of the tower body (1), the pulse jet cleaning device (2) is connected to the plurality of filter components (3), and the filter components (3) include filter bags (301), characterized in that: A circular tube (4) is coaxially rotatably connected inside the filter bag (301). The top end of the circular tube (4) is connected to the air outlet of the pulse jet device (2). A strip ventilation pipe (401) is fixedly connected to one side of the circular tube (4). A strip air outlet (402) is provided on the side of the strip ventilation pipe (401) near the inner wall of the filter bag (301). The top of the tower body (1) is fixedly connected to a drive mechanism (5) for driving the round tube (4) to rotate 360° coaxially inside the filter bag (301).
2. The self-dust-removing exhaust gas treatment tower according to claim 1, characterized in that: The filter assembly (3) also includes a frame (302), the outer wall of which is supported and installed in the inner wall of the filter bag (301). A disc (303) is fixedly installed at the lower end of the frame (302), and a circular hole (304) is provided on the disc (303). The lower end of the circular tube (4) is coaxially rotatably installed in the circular hole (304).
3. The self-dust-removing exhaust gas treatment tower according to claim 2, characterized in that: A connecting pipe (305) is fixedly installed at the top of the frame (302). The upper opening of the filter bag (301) is closed and installed around the top of the connecting pipe (305). A rotating hole (306) is provided at the top of the connecting pipe (305). The top of the round tube (4) is rotatably installed in the rotating hole (306). The outer diameter of the round tube (4) is smaller than the inner diameter of the connecting pipe (305).
4. The self-dust-removing exhaust gas treatment tower according to claim 1, characterized in that: The pulse jet device (2) has several jet pipes (6) fixedly installed on the air bag. The lower end of the jet pipe (6) is vertically connected to several vertical pipes (601). A rotary joint (403) is connected between the top end of the round pipe (4) and the vertical pipe (601).
5. The self-dust-removing exhaust gas treatment tower according to claim 4, characterized in that: The drive mechanism (5) comprises several cylinders (501), several racks (503) and several gears (504). Several gears (504) are coaxially fixedly installed on the periphery of the lower end of several rotary joints (403). Several racks (503) are meshed with one side of several gears (504). The cylinder body of the cylinder (501) is fixedly connected to the outer wall of the tower body (1). The piston rod of the cylinder (501) is fixedly connected to several racks (503).
6. The self-dust-removing exhaust gas treatment tower according to claim 5, characterized in that: Both ends of the rack (503) are fixedly installed with slide rods (502), which slide through the top of the tower body (1) in a sealed manner.