An industrial waste gas purification device

Abstract

The utility model relates to the technical field of waste gas purification device, especially industrial waste gas purification device. Including have: base, jar body, connect in the top of base, air inlet pipe, connect in the side of jar body and keep communication, air outlet pipe, connect in the top of jar body and keep communication, installation box, connect in the top of base, drain pipe, connect on installation box, and one end of drain pipe is connected with jar body and keeps communication, connecting frame, symmetry connects in the inner wall of jar body, filter screen, connect in the inner wall of connecting frame. The utility model's jar body inner wall symmetry installs annular spray pipe up and down, and water is shunted to annular spray pipe and hollow water spray frame through stand pipe, shunt pipe and connecting cover, annular spray pipe carries out wide area spray from top to bottom, covers jar body cross section, and hollow water spray frame is close to filter screen rotation water spraying, forms local reinforced water film, and both cooperate and build three -dimensional spray network, can overcome traditional spray tower droplet uneven distribution, the defect that covers not completely.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas purification devices, and in particular to an industrial waste gas purification device. Background Technology

[0002] In industrial production processes, industries such as metallurgy, chemicals, power, and building materials often generate large amounts of industrial waste gas containing harmful components such as dust, acidic gases, and organic pollutants. In order to meet increasingly stringent environmental emission standards, various waste gas purification devices are widely used in flue gas treatment.

[0003] Currently, most common wet scrubbing purification devices employ a spray tower structure. Their basic structure typically includes a vertical tank with spray pipes at the top for spraying an absorbent liquid (such as water or an alkaline solution), and an inlet pipe at the bottom, allowing the exhaust gas to flow upwards and react with the downward-flowing droplets within the tower to capture and neutralize pollutants. However, these traditional spray-type purification devices have significant technical drawbacks in actual operation: First, the water mist generated by the spray system has an uneven particle size distribution; in some areas, the droplets are too large and settle quickly, while in other areas, insufficient atomization leads to incomplete coverage, making it difficult to form a uniform and effective gas-liquid contact interface. Second, due to the high velocity and short path of the flue gas within the tower, the residence time of the gas and liquid phases is limited, weakening mass transfer efficiency. More critically, existing structures lack an effective turbulence-promoting mechanism, resulting in low gas-liquid mixing. Especially when treating micron-sized fine particles or hydrophobic dust, the poor surface tension and wettability make it difficult for droplets to be effectively captured, leading to a significant decrease in overall purification efficiency. Utility Model Content

[0004] In view of this, the present invention provides an industrial waste gas purification device that can overcome the shortcomings of existing industrial waste gas purification devices, such as low purification efficiency, high operating cost, easy clogging, or inconvenient maintenance.

[0005] The technical implementation scheme of this utility model is as follows: an industrial waste gas purification device, comprising: a base; a tank connected to the top of the base; an inlet pipe connected to the side of the tank and maintaining communication; an outlet pipe connected to the top of the tank and maintaining communication; a mounting box connected to the top of the base; a drain pipe connected to the mounting box, with one end of the drain pipe connected to the tank and maintaining communication; a connecting frame symmetrically connected to the inner wall of the tank; a filter screen connected to the inner wall of the connecting frame; a mounting bracket symmetrically connected to the inner wall of the tank, with the mounting bracket located above the connecting frame; a hollow water spray frame rotatably connected to the mounting bracket; a spray assembly disposed on the tank for spraying water into the tank; and a rotating assembly disposed on the mounting bracket for driving the hollow water spray frame to rotate.

[0006] Optionally, the spray assembly includes: an inlet pipe connected to the mounting box; a water pump installed on the outer wall of the tank, with one end of the inlet pipe connected to and maintaining communication with the water pump inlet; a vertical pipe connected to and maintaining communication with the water pump outlet; an annular spray pipe symmetrically connected to the inner wall of the tank, with the annular spray pipe connected to and maintaining communication with the vertical pipe; and a conveying mechanism mounted on the mounting frame for conveying water from the vertical pipe to the hollow spray frame.

[0007] Optionally, the conveying mechanism includes: a diverter pipe connected to the top of the mounting frame, with one end of the diverter pipe connected to and maintaining communication with the vertical pipe; and a connecting cover connected to the top of the mounting frame, with the interior of the connecting cover maintaining communication with the top of the hollow water spray frame, and the other end of the diverter pipe connected to and maintaining communication with the connecting cover.

[0008] Optionally, the rotating assembly includes: a drive motor mounted on the top of the mounting bracket; a first gear connected to the output shaft of the drive motor; and a second gear connected to the rotating shaft of the hollow water spray frame, wherein the second gear meshes with the first gear.

[0009] Optionally, it also includes: a fixed frame connected to the rotating shaft of the hollow water spray frame on the lower side; a rotating brush rotatably connected to the inside of the fixed frame; a third gear connected to the rotating shaft of the rotating brush; and a gear ring connected to the bottom of the connecting frame on the lower side, with the third gear meshing with the gear ring.

[0010] Optionally, it also includes: a transparent panel, which is embedded in the side of the tank.

[0011] The present invention has the following advantages: 1. The inner wall of the tank is symmetrically equipped with annular spray pipes on the upper and lower sides. Water is distributed to the annular spray pipes and the hollow spray frame through the vertical pipe, the diversion pipe and the connecting cover. The annular spray pipes spray water from top to bottom in a wide area, covering the cross-section of the tank. At the same time, the hollow spray frame sprays water close to the filter screen in a rotating manner, forming a locally enhanced water film. The two work together to form a three-dimensional spray network, which can overcome the defects of uneven droplet distribution and incomplete coverage of traditional spray towers. It ensures that the exhaust gas is in full contact with the droplets during the rising process, improves the mass transfer efficiency and purification uniformity, and thus significantly improves the overall purification efficiency.

[0012] 2. When the hollow water spray frame of this utility model rotates, the fixed frame drives the rotating brush to revolve, and at the same time the third gear rolls along the gear ring to make the brush rotate, automatically brushing away the impurities accumulated at the bottom of the filter screen. This design effectively prevents the filter screen from being blocked by the accumulation of particles, reduces the frequency of manual cleaning, and ensures the long-term stable operation of the device. At the same time, a transparent plate is added to the side of the tank, which allows the operator to intuitively observe the water level in the tank, making it easy to monitor the water level in real time to prevent exhaust gas from escaping from the drain pipe. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a cross-sectional view of the tank body of this utility model.

[0015] Figure 3 This is a schematic diagram of the installation of the conveying mechanism and rotating component of this utility model.

[0016] Figure 4 This is a schematic diagram showing the installation of the fixed frame, rotating brush, third gear, and gear ring of this utility model.

[0017] The meanings of the reference numerals in the diagram are as follows: 1: Base, 2: Tank, 3: Air inlet pipe, 4: Air outlet pipe, 5: Mounting box, 6: Drain pipe, 7: Connecting frame, 8: Filter screen, 9: Mounting bracket, 10: Hollow water spray bracket, 11: Water inlet pipe, 12: Water pump, 13: Vertical pipe, 14: Annular spray pipe, 15: Diverter pipe, 16: Connecting cover, 17: Drive motor, 18: First gear, 19: Second gear, 20: Fixing frame, 21: Rotating brush, 22: Third gear, 23: Gear ring, 24: Transparent plate. Detailed Implementation

[0018] 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.

[0019] Example: An industrial waste gas purification device, such as Figures 1-3As shown, the system includes a base 1, a tank 2, an air inlet pipe 3, an air outlet pipe 4, a mounting box 5, a drain pipe 6, a connecting frame 7, a filter screen 8, a mounting bracket 9, a hollow spray frame 10, a spray assembly, and a rotating assembly. The tank 2 is connected to the top center of the base 1. The air inlet pipe 3 is connected to the lower right side of the tank 2 and remains connected. The air outlet pipe 4 is connected to the top of the tank 2 and remains connected. The mounting box 5 is connected to the top front of the base 1. The drain pipe 6 is connected to the lower part of the mounting box 5. A control valve is installed on the drain pipe 6. The left end of the drain pipe 6 is connected to the lower front side of the tank 2 and remains connected. The inner wall of the tank 2 is symmetrically connected with connecting... The top and bottom of the frame 7 are open. The inner walls of the two connecting frames 7 are connected to filter screens 8. The inner walls of the tank 2 are symmetrically connected to mounting brackets 9. The mounting brackets 9 correspond one-to-one with the connecting frames 7 and are located above the connecting frames 7. Hollow water spray brackets 10 are rotatably connected to the middle of the two mounting brackets 9. The upper end of the rotating shaft of the hollow water spray bracket 10 is open and the lower end of the rotating shaft of the hollow water spray bracket 10 is closed and rotates through the middle of the filter screen 8. The tank 2 is equipped with a spray assembly for spraying water and the mounting brackets 9 are equipped with a rotating assembly for driving the hollow water spray bracket 10 to rotate.

[0020] like Figures 1-3 As shown, the spray assembly includes an inlet pipe 11, a water pump 12, a vertical pipe 13, an annular spray pipe 14, and a conveying mechanism. The upper part of the mounting box 5 is connected to the inlet pipe 11, and a control valve is also installed on the inlet pipe 11. The water pump 12 is installed on the lower front side of the tank 2, and the left end of the inlet pipe 11 is connected to and maintains communication with the inlet of the water pump 12. The outlet of the water pump 12 is connected to and maintains communication with the vertical pipe 13. The inner wall of the tank 2 is symmetrically connected with annular spray pipes 14, and the front end of the annular spray pipe 14 is connected to the vertical pipe 14. 3. Connect and maintain communication. The mounting frame 9 is provided with a conveying mechanism for conveying water in the vertical pipe 13 to the hollow water spray frame 10. The conveying mechanism includes a diverter pipe 15 and a connecting cover 16. The diverter pipe 15 is connected to the front top of the mounting frame 9, and the front end of the diverter pipe 15 is connected to and maintains communication with the vertical pipe 13. The connecting cover 16 is connected to the middle top of the mounting frame 9, and the interior of the connecting cover 16 maintains communication with the top of the hollow water spray frame 10. The rear end of the diverter pipe 15 is connected to and maintains communication with the connecting cover 16.

[0021] like Figure 3 As shown, the rotating assembly includes a drive motor 17, a first gear 18, and a second gear 19. The drive motor 17 is mounted on the top front right side of the mounting bracket 9. The first gear 18 is connected to the output shaft of the drive motor 17. The second gear 19 is connected to the rotating shaft of the hollow water spray bracket 10, and the second gear 19 meshes with the first gear 18.

[0022] When this device is needed for waste gas purification, first connect the right end of the inlet pipe 11 to an external water source and open the control valve on the inlet pipe 11. Then start the water pump 12. The water pump 12 draws water from the source through the inlet pipe 11 and pumps the water into the vertical pipe 13. Part of the water will be directly delivered to the upper and lower annular spray pipes 14, and the other part will be delivered to the hollow spray frame 10 through the diversion pipe 15 and the connecting cover 16. Thus, the annular spray pipes 14 and the hollow spray frame 10 spray downwards simultaneously to form a uniform water mist. Next, start the drive motor 17. The drive motor 17 drives the first gear 18 to rotate. The first gear 18 meshes with the second gear 19, which in turn drives the hollow spray frame 10 to rotate around its axis. Since the nozzle of the hollow spray frame 10 is close to the top of the filter screen 8, the sprayed water mist can effectively cover the surface of the filter screen 8 to form a dynamically renewed water film. After that, the industrial waste gas to be treated is introduced into the bottom of the tank 2 through the air inlet pipe 3. The waste gas in the tank... The gas flows upwards from the bottom, first passing through the lower filter 8. The filter 8 itself has a mechanical interception effect on particulate matter in the exhaust gas, while the water film on its surface ensures full contact between the exhaust gas and the liquid, achieving wet capture of dust and absorption of some gaseous pollutants, completing the initial purification. Subsequently, the exhaust gas continues to rise, passing through the upper filter 8 and its water film for secondary purification. During this process, the upper and lower annular spray pipes 14 continuously spray water mist downwards, making counter-current contact with the rising exhaust gas, further enhancing gas-liquid mass transfer and absorbing residual pollutants. Through the multi-stage purification mechanism combining "filter water film interception" and "space spray washing", the purification efficiency can be significantly improved. The purified clean gas is finally discharged from the top outlet pipe 4. The wastewater generated during the purification process collects at the bottom of the tank 2 under the action of gravity. When the liquid level accumulates to a certain height, the control valve on the drain pipe 6 can be opened to discharge the wastewater to the external treatment system, thereby maintaining the continuous and stable operation of the device.

[0023] Since the lower filter 8 is the first purification unit that exhaust gas comes into contact with after entering the tank, its bottom, windward surface is more prone to accumulating adhesive impurities such as smoke and oil. Long-term operation can easily cause blockage, affecting airflow and purification efficiency. Therefore, a cleaning component has been added. Figure 4 As shown, the cleaning assembly includes a fixed frame 20, a rotating brush 21, a third gear 22, and a gear ring 23. The lower end of the rotating shaft of the hollow water spray frame 10 on the lower side is connected to the fixed frame 20. The rotating brush 21 is rotatably connected to the inner side of the fixed frame 20. The rotating brush 21 contacts the bottom of the filter screen 8 on the lower side. The third gear 22 is connected to the rotating shaft of the rotating brush 21. The bottom of the connecting frame 7 on the lower side is connected to the gear ring 23, and the third gear 22 meshes with the gear ring 23.

[0024] When the hollow spray frame 10 rotates, it will drive the fixed frame 20 to rotate synchronously. The fixed frame 20 will drive the rotating brush 21 and the third gear 22 to revolve, causing the third gear 22 to roll on the gear ring 23. The gear ring 23 will drive the third gear 22 and the rotating brush 21 to rotate on their own axis. The rotating brush 21 can brush and clean the bottom of the filter screen 8 on the lower side.

[0025] like Figure 1 As shown, it also includes a transparent plate 24, which is embedded in the lower left side of the tank body 2. During the process of discharging wastewater, the user can observe the remaining amount of wastewater inside the tank body 2 through the transparent plate 24, ensuring that the liquid level of the wastewater inside the tank body 2 is always higher than the height of the end of the drain pipe 6, and preventing the exhaust gas inside the tank body 2 from escaping out through the drain pipe 6.

[0026] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. An industrial waste gas purification device, comprising: a base (1); a tank (2) connected to the top of the base (1); an inlet pipe (3) connected to the side of the tank (2) and maintaining communication; an outlet pipe (4) connected to the top of the tank (2) and maintaining communication; a mounting box (5) connected to the top of the base (1); and a drain pipe (6) connected to the mounting box (5), with one end of the drain pipe (6) connected to the tank (2) and maintaining communication; characterized in that, It also includes: a connecting frame (7), symmetrically connected to the inner wall of the tank (2); a filter screen (8), connected to the inner wall of the connecting frame (7); a mounting bracket (9), symmetrically connected to the inner wall of the tank (2), and the mounting bracket (9) is located above the connecting frame (7); a hollow water spray bracket (10), rotatably connected to the mounting bracket (9); a spray assembly, set on the tank (2), used to spray water into the tank (2); and a rotating assembly, set on the mounting bracket (9), used to drive the hollow water spray bracket (10) to rotate.

2. An industrial waste gas purification device according to claim 1, characterized in that, The spray assembly includes: an inlet pipe (11) connected to the mounting box (5); a water pump (12) installed on the outer wall of the tank (2), with one end of the inlet pipe (11) connected to the inlet of the water pump (12) and kept in communication; a vertical pipe (13) connected to the outlet of the water pump (12) and kept in communication; an annular spray pipe (14) symmetrically connected to the inner wall of the tank (2), with the annular spray pipe (14) connected to the vertical pipe (13) and kept in communication; and a conveying mechanism set on the mounting frame (9) for conveying water in the vertical pipe (13) to the hollow spray frame (10).

3. An industrial waste gas purification device according to claim 2, characterized in that, The conveying mechanism includes: a diversion pipe (15), which is connected to the top of the mounting frame (9), and one end of the diversion pipe (15) is connected to and maintains communication with the vertical pipe (13); a connecting cover (16), which is connected to the top of the mounting frame (9), and the interior of the connecting cover (16) is maintained in communication with the top of the hollow water spray frame (10), and the other end of the diversion pipe (15) is connected to and maintains communication with the connecting cover (16).

4. An industrial waste gas purification device according to claim 1, characterized in that, The rotating assembly includes: a drive motor (17) mounted on the top of the mounting bracket (9); a first gear (18) connected to the output shaft of the drive motor (17); and a second gear (19) connected to the rotating shaft of the hollow water spray frame (10), and the second gear (19) meshes with the first gear (18).

5. An industrial waste gas purification device according to claim 1, characterized in that, It also includes: a fixed frame (20) connected to the rotating shaft of the hollow water spray frame (10) on the lower side; a rotating brush (21) rotatably connected to the inside of the fixed frame (20); a third gear (22) connected to the rotating shaft of the rotating brush (21); and a gear ring (23) connected to the bottom of the connecting frame (7) on the lower side, and the third gear (22) meshes with the gear ring (23).

6. An industrial waste gas purification device according to claim 1, characterized in that, It also includes: a transparent panel (24), which is embedded in the side of the tank (2).

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