Multi-dust removal device for dust and flue gas

Abstract

The utility model relates to the technical field of dust removal devices, in particular to a multiple dust removal device for dust and flue gas, which comprises a tower body, a gas outlet and a gas inlet are respectively arranged at the top end and the bottom end of the tower body, and a Venturi tube filler, a twill filler and a rotational flow water distribution filler are sequentially arranged in the tower body from bottom to top. Spraying pipes are arranged between the Venturi tube filler and the twill filler and between the twill filler and the rotational flow water distribution filler, a main pipeline communicated with the spraying pipes is arranged on one side of the exterior of the tower body, a vertical shaft is arranged in the middle of the bottom of each spraying pipe, a connecting sleeve is arranged on the exterior of each vertical shaft in a sleeving mode, and the connecting sleeves are connected with the main pipeline. Auxiliary branch pipes communicating with the spraying pipe are movably arranged on the two sides of the connecting sleeve correspondingly, and a pulling assembly used for driving the connecting sleeve to slide outside the vertical shaft is arranged on one side of the top of the spraying pipe. The multi-dust removal device for dust and flue gas can adapt to different flue gas conditions and ensure that a water film is uniform and stable, so that the dust removal efficiency and the overall performance are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal devices, in particular to a dust and fume multiple dust removal device. Background Art

[0002] The pulping trough of the waste heat boiler of suspension roasting discharges a large amount of dusty flue gas during the production process. The dust carried in the flue gas mainly comes from the condensation of high-temperature gas generated by suspension roasting during cooling and the release of fine particles during material handling. These dusts may contain a variety of components, such as incompletely burned carbon particles, mineral impurities, and possible chemical reaction products. They not only pollute the environment, but also pose a threat to the health of workers. Therefore, effective measures must be taken to deal with them.

[0003] At present, the dust removal process of dusty flue gas can widely use water film precipitation tower equipment for dust removal. Water droplets are evenly sprayed through the installed nozzle system in the tower to form one or more layers of flowing water film. When the dusty flue gas passes through the water film, the dust particles are captured by the water droplets due to inertial collision, interception, condensation and diffusion, and thus separated from the airflow. However, most of the existing water film precipitation tower equipment is fixedly installed on the spray system, which has certain limitations. This can easily cause problems such as uneven spray distribution and unstable local water film thickness. Especially when the flue gas flow rate and dust concentration change, this fixed configuration spray system cannot be adjusted in time to adapt to changes in working conditions, thereby affecting the dust removal efficiency and the overall performance of the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a dust and flue gas multiple dust removal device to solve the problem raised in the above background technology that most of the current water film precipitation tower equipment is fixedly installed on the spray system, which can easily cause uneven spray distribution and unstable local water film thickness, thereby affecting the dust removal efficiency and equipment performance.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a dust and flue gas multiple dust removal device, comprising a tower body, the top and bottom ends of the tower body are respectively provided with an air outlet and an air inlet, and the inside of the tower body is provided with a venturi tube filler, a twill filler and a swirl water distribution filler from bottom to top, and a spray pipe is provided between the venturi tube filler and the twill filler and between the twill filler and the swirl water distribution filler, a main pipeline interconnected with the spray pipe is provided on one side of the outside of the tower body, and a vertical axis is provided in the middle of the bottom of the spray pipe, the outer sleeve of the vertical axis is provided with a connecting sleeve, and auxiliary branch pipes connected to the spray pipe are movably provided on both sides of the connecting sleeve, and a pulling component for driving the connecting sleeve to slide on the outside of the vertical axis is provided on one side of the top of the spray pipe.

[0006] Preferably, the pulling assembly on one side of the top of the spray pipe includes a pull rope, a limit seat and a pull shaft, the limit seat is fixed on one side of the top of the spray pipe, the pull shaft is transversely inserted into the limit seat, and the pull rope is connected between the inner end of the pull shaft and the outer wall of the sleeve.

[0007] Preferably, a through hole matching with the pull shaft is provided inside the limit seat, and a damping ring is provided on the inner wall of the through hole inside the limit seat.

[0008] Preferably, a hose is connected between the spray pipe and the auxiliary branch pipe, and the spray pipe and the auxiliary branch pipe are interconnected through the hose.

[0009] Preferably, an elastic member is connected between the top of the outer end of the auxiliary branch pipe and the spray pipe, and the elastic member is a bent structure.

[0010] Preferably, the tower body is symmetrically provided with sealing openings on one side of the air outlet, and the sealing openings correspond to the positions of the two spray pipes.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the dust and flue gas multiple dust removal device can quickly adjust the layout according to the actual situation by designing a modular spray assembly to adapt to different flue gas conditions, ensure a uniform and stable water film, and thus improve the dust removal efficiency and overall performance. The device is provided with two auxiliary branch pipes at the bottom of the spray pipe, and the auxiliary branch pipes can drive the sleeve to slide outside the vertical axis through the pulling assembly provided at the top of the spray pipe. When the sleeve slides to different positions, it can drive the auxiliary branch pipes to expand to different spray angles at the bottom of the spray pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a dust and fume multiple dust removal device of the utility model;

[0013] Figure 2 It is a schematic diagram of the connection structure of the spray pipe and the auxiliary branch pipe of a dust and fume multiple dust removal device of the utility model;

[0014] Figure 3 The utility model is a schematic diagram of the side structure of a spray pipe of a dust and fume multiple dust removal device.

[0015] In the figure: 1. tower body; 2. air outlet; 3. air inlet; 4. venturi filler; 5. twill filler; 6. swirl water distribution filler; 7. sealing port; 8. main pipeline; 9. spray pipe; 10. vertical axis; 11. connecting sleeve; 12. auxiliary branch pipe; 13. hose; 14. elastic part; 15. pull rope; 16. limit seat; 17. pull shaft. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3The utility model provides a technical solution: a dust and flue gas multiple dust removal device, including a tower body 1, the top and bottom of the tower body 1 are respectively provided with an air outlet 2 and an air inlet 3, the sewage outlet valve at the bottom of the tower body 1 adopts a pneumatically controlled quick-opening valve to automatically discharge sewage at a fixed time, and the inside of the tower body 1 is provided with a venturi filler 4, a twill filler 5 and a swirl water distribution filler 6 from bottom to top, the venturi filler 4 is made of a PP pipe reducer, including a contraction section, a throat and a diffusion section, which can produce an acceleration effect when the airflow passes through, and then decelerate in the diffusion section. This speed change causes pressure fluctuations, which promotes strong turbulent mixing at the gas-liquid interface. This efficient mixing process greatly increases the gas-liquid contact area, which is beneficial to the effective collision and capture of smoke particles and water droplets, and the twill filler 5 can be made of corrosion-resistant and high-temperature-resistant materials (such as PVC, PP or other composite materials). The surface of the twill filler 5 presents oblique lines or wavy shapes. Such a design can guide the water flow to form more turbulence, enhance the volatility of the water film, make the passing dust and smoke have more sufficient contact with the water film, and improve the efficiency of separating particulate matter from the airflow. The swirl water distribution filler 6 can evenly disperse the water flow entering the tower into fine water droplets or form a uniform water film. Spray pipes 9 are provided between the venturi filler 4 and the twill filler 5 and between the twill filler 5 and the swirl water distribution filler 6. The spray pipes 9 are distributed horizontally and one end penetrates to the outside of the tower body 1. The penetration between the tower body 1 and the spray pipe 9 is sealed. One side of the outside of the tower body 1 is provided with a spray pipe 9 that is mutually connected with the spray pipe 9. A main pipeline 8 is connected to the tower body 1, and a vertical axis 10 is welded and fixed in the middle of the bottom of the spray pipe 9. A connecting sleeve 11 is provided on the outside of the vertical axis 10. Auxiliary branch pipes 12 connected to the spray pipe 9 are hinged on both sides of the connecting sleeve 11 through a pin shaft. A plurality of nozzles are provided at the bottom of the auxiliary branch pipe 12, and a pulling component is provided on one side of the top of the spray pipe 9. The pulling component at the top of the spray pipe 9 of this structure can drive the connecting sleeve 11 to slide outside the vertical axis 10. When the connecting sleeve 11 slides to different positions, it can drive the auxiliary branch pipe 12 to expand to different angles in the spray pipe 9. When the main pipeline 8 introduces the spray water into the two spray pipes 9 through the pump body, the spray pipe 9 can synchronously transport the water to the inside of the two auxiliary branch pipes 12, so as to evenly spray water droplets on the inside of the tower body 1, thereby improving the uniformity of the water droplet distribution. The uniformity and fine atomization degree increase the contact area between the water film and the smoke dust. This structure with flexible adjustment of the layout of the spray components solves the problem of uneven spray distribution and unstable water film in the traditional water film precipitation tower equipment due to the fixed installation of the spray components, thereby improving the dust removal efficiency and overall performance of the tower body 1, and better meeting environmental protection requirements and production needs. The pulling component on one side of the top of the spray pipe 9 includes a pull rope 15, a limit seat 16 and a pull shaft 17. The limit seat 16 is welded and fixed on one side of the top of the spray pipe 9. The pull shaft 17 is laterally inserted into the inside of the limit seat 16. The two ends of the pull rope 15 are connected between the inner end of the pull shaft 17 and the outer wall of the sleeve 11 through a fixed ring. The pull shaft 17 of this structure can pull the pull rope 15 by pulling it laterally inside the limit seat 16.In this way, the pull rope 15 can pull the sleeve 11 to slide on the outside of the vertical shaft 10 to achieve the function of adjusting the angle of the auxiliary branch pipe 12. The interior of the limit seat 16 is provided with a through hole that matches the pull shaft 17, and a damping ring is bonded and fixed on the inner wall of the through hole inside the limit seat 16. The pull shaft 17 of this structure will contact the damping ring on the inner wall of the limit seat 16 when pulled to increase the friction force, which makes the pull shaft 17 more stable after being pulled to a suitable position, and is not prone to sliding displacement, so that the auxiliary branch pipe 12 remains stable after adjustment. A hose 13 is connected between the spray pipe 9 and the auxiliary branch pipe 12, and the spray pipe 9 and the auxiliary branch pipe 12 are interconnected through the hose 13. The spray of this structure The pipe 9 can transport the spray water from the hose 13 to the inside of the auxiliary branch pipe 12, and the hose 13 can ensure that the auxiliary branch pipe 12 can be smoothly extended to different angles. An elastic member 14 is connected between the top of the outer end of the auxiliary branch pipe 12 and the spray pipe 9. The elastic member 14 is an existing bent thin metal material. The elastic member 14 of this structure can limit the outer end of the auxiliary branch pipe 12, further ensuring that the auxiliary branch pipe 12 can be smoothly extended to different angles. The tower body 1 is symmetrically provided with a sealing port 7 on one side of the air outlet 2, and the sealing port 7 corresponds to the position of the two spray pipes 9. The sealing port 7 of this structure can be opened to allow the staff to pull the pull shaft 17, which is more convenient to operate.

[0018] Working principle: When using the dust and flue gas multiple dust removal device, first introduce the dust and flue gas to be dusted into the tower body 1 through the air inlet 3. The dust and flue gas entering the tower body 1 will contact the venturi filler 4, twill filler 5 and swirl water distribution filler 6 in turn. At this time, the main pipeline 8 is connected to the external water supply equipment through the pump body to transport the spray water to the inside of the two spray pipes 9. The spray pipe 9 then transports the spray water to the inside of the auxiliary branch pipe 12 through the hose 13. The auxiliary branch pipe 12 can evenly spray water droplets to the inside of the tower body 1 through the nozzle at the bottom, and when the spray angle of the auxiliary branch pipe 12 needs to be adjusted, the spray water can be evenly sprayed to the inside of the tower body 1. When adjusting, open the sealing port 7 and pull the pull shaft 17. When the pull shaft 17 is pulled horizontally inside the limit seat 16, it will pull the pull rope 15. When the pull rope 15 is under force, it can pull the sleeve 11 to slide outside the vertical axis 10. When the sleeve 11 slides to different positions, it can drive the auxiliary branch pipe 12 to expand to a more suitable spray angle at the bottom of the spray pipe 9, and the elastic member 14 can limit the outer end of the auxiliary branch pipe 12 when adjusting its angle, so that the auxiliary branch pipe 12 can be converted to a more suitable spray angle to ensure that the water film is uniform and stable. Finally, the purified dust and smoke flow out from the air outlet 2, and a series of tasks are completed.

[0019] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dust and flue gas multiple dust removal device, comprising a tower body (1), wherein the top and bottom ends of the tower body (1) are respectively provided with an air outlet (2) and an air inlet (3), and the inside of the tower body (1) is provided with a venturi filler (4), a twill filler (5) and a swirl water distribution filler (6) in order from bottom to top, characterized in that: A spray pipe (9) is provided between the venturi filler (4) and the twill filler (5) and between the twill filler (5) and the swirl water distribution filler (6); a main pipeline (8) communicating with the spray pipe (9) is provided on one side of the exterior of the tower body (1); a vertical shaft (10) is provided in the middle of the bottom of the spray pipe (9); a connecting sleeve (11) is provided on the exterior of the vertical shaft (10); auxiliary branch pipes (12) communicating with the spray pipe (9) are movably provided on both sides of the connecting sleeve (11); and a pulling assembly for driving the connecting sleeve (11) to slide outside the vertical shaft (10) is provided on one side of the top of the spray pipe (9).

2. The dust and fume multiple dust removal device according to claim 1 is characterized in that: The pulling assembly on one side of the top of the spray pipe (9) comprises a pulling rope (15), a limiting seat (16) and a pulling shaft (17); the limiting seat (16) is fixed on one side of the top of the spray pipe (9); the pulling shaft (17) is inserted transversely into the inside of the limiting seat (16); and the pulling rope (15) is connected between the inner end of the pulling shaft (17) and the outer wall of the connecting sleeve (11).

3. The dust and fume multiple dust removal device according to claim 2 is characterized in that: A through hole matching the pull shaft (17) is provided inside the limit seat (16), and a damping ring is provided on the inner wall of the through hole inside the limit seat (16).

4. The dust and fume multiple dust removal device according to claim 1 is characterized in that: A hose (13) is connected between the spray pipe (9) and the auxiliary branch pipe (12), and the spray pipe (9) and the auxiliary branch pipe (12) are interconnected via the hose (13).

5. The dust and fume multiple dust removal device according to claim 1 is characterized by: An elastic member (14) is connected between the top of the outer end of the auxiliary branch pipe (12) and the spray pipe (9), and the elastic member (14) is a bent structure.

6. The dust and fume multiple dust removal device according to claim 1 is characterized by: The tower body (1) is symmetrically provided with sealing openings (7) on one side of the gas outlet (2), and the sealing openings (7) correspond to the positions of the two spray pipes (9).

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