Safe high-temperature hearth gas discharging device

Abstract

The utility model discloses a safe high-temperature hearth gas discharging device which comprises a flue gas treatment box, an electrostatic dust collection box is fixedly arranged on the left side of the flue gas treatment box, an electrostatic dust collection plate and an ionization rod are fixedly arranged in the electrostatic dust collection box, and a gas inlet pipe is fixedly arranged on the left side of the electrostatic dust collection box. A cleaning assembly facilitating cleaning of the electrostatic dust collection plate is arranged on the surface of the electrostatic dust collection box. High-temperature hearth gas is ionized through the ionization rod, charged particles move towards the electrostatic dust collection plate under the action of electric field force and are adsorbed by the electrostatic dust collection plate, small particles in flue gas are removed, then the particles enter the flue gas treatment box, the flue gas is treated by spraying alkaline water flow, particles in the flue gas are captured again through the water flow, and the flue gas is purified. And acid gas in the flue gas is removed, so that the flue gas is treated more thoroughly, the situation that small particles in the flue gas are difficult to catch by water flow and are discharged into the external environment along with the gas is avoided, and the emission concentration of the flue gas reaches the standard.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature furnace gas treatment technology, and in particular to a safe high-temperature furnace gas emission device. Background Technology

[0002] Industries such as steelmaking, ironmaking, papermaking, plastics production, and cement production all generate large amounts of high-temperature furnace gas during the production process. Because the high-temperature furnace gas is not only at a high temperature after being discharged from the heating furnace, it also contains a large amount of soot. If it is directly discharged, it will cause serious environmental pollution. Therefore, when high-temperature furnace gas is discharged, it is necessary to cool it down and remove dust to avoid damage to the ecological environment.

[0003] In the prior art, application number CN202323169862.0 proposes a safe high-temperature furnace gas emission device, in which the high-temperature furnace gas in the chamber is cooled by a nozzle, and the dust and water come into contact to form sludge, which is easy to remove dust from the flue gas. Then, the filter plate of the filter structure can intercept the sludge in the sewage, which facilitates the separation of mud and water and avoids spending a lot of time on the subsequent mud and water separation treatment of sewage, effectively reducing the cost of high-temperature furnace gas purification treatment.

[0004] Although water flow can capture some particulate matter through inertial collision and interception, it is difficult for water flow to capture fine particulate matter, especially particles with a diameter of less than one micrometer. As a result, small particles are discharged into the external environment with the gas, resulting in incomplete treatment of particulate matter in the flue gas and making it difficult for the emission concentration of the flue gas to meet the standards. Based on the above problems, this application proposes a safe high-temperature furnace gas emission device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a safe high-temperature furnace gas emission device to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A safe high-temperature furnace gas emission device includes a flue gas treatment box. An electrostatic precipitator is fixedly installed on the left side of the flue gas treatment box. An electrostatic precipitator plate and an ionization rod are fixedly installed inside the electrostatic precipitator box. An air inlet pipe is fixedly installed on the left side of the electrostatic precipitator box. A cleaning component is provided on the surface of the electrostatic precipitator box to facilitate cleaning of the electrostatic precipitator plate. An air inlet is provided through the left side of the flue gas treatment box. A spray component is provided inside the flue gas treatment box. A bending plate is fixedly installed inside the flue gas treatment box. Ventilation holes are provided through the surface of the bending plate. A filter screen is fixedly installed inside the flue gas treatment box. A cleaning component is provided inside the flue gas treatment box to facilitate cleaning of the filter screen.

[0008] Preferably, the cleaning assembly includes a mounting bracket fixedly installed on the top of the electrostatic dust collector. A drive motor is fixedly installed on the top of the mounting bracket, and a rotating screw is fixedly installed at the output end of the drive motor. A movable plate is threaded on the surface of the rotating screw, and a pushing column is fixedly installed at the bottom of the movable plate. The pushing column is slidably connected to the electrostatic dust collector, and a mounting plate is fixedly installed at the bottom of the pushing column. Cleaning plates are fixedly installed on both the front and rear sides of the mounting plate.

[0009] Preferably, the spray assembly includes a water outlet pipe fixedly installed inside the flue gas treatment box, a diverter pipe fixedly installed at the water inlet end of the water outlet pipe, and a spray head fixedly installed at the bottom of the water outlet pipe.

[0010] Preferably, the cleaning component includes a rotary motor fixedly installed on the front side of the flue gas treatment box. A rotary screw is fixedly provided at the output end of the rotary motor. A threaded sleeve is provided on the surface of the rotary screw. A mounting post is fixedly provided at the bottom of the threaded sleeve. A mounting post is fixedly provided at the bottom of the mounting post. A rectangular post is fixedly provided on the front side of the mounting post. A sealing plate is fixedly provided on the front side of the rectangular post. A sealing gasket is fixedly provided inside the sealing plate.

[0011] Preferably, the bottom of the electrostatic precipitator has a dust outlet, and a collection box is fixedly installed at the bottom of the electrostatic precipitator. A cover plate is installed at the bottom of the collection box via a hinge, and a latch lock is connected between the front side of the cover plate and the front side of the collection box.

[0012] Preferably, a slot is fixedly provided on the front side of the flue gas treatment box, and the sealing plate and sealing gasket are both located inside the slot.

[0013] Preferably, the number of water outlet pipes is several, and the several water outlet pipes are distributed in a linear array.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This safe high-temperature furnace gas emission device ionizes the high-temperature furnace gas through ionization rods, causing the particulate matter in the high-temperature furnace gas to become charged. Under the action of the electric field force, the charged particles move towards the electrostatic precipitator plate and are adsorbed by the electrostatic precipitator plate, removing small particles from the flue gas. The flue gas then enters the flue gas treatment box, where alkaline water is sprayed to treat the flue gas. The water flow captures the particles in the flue gas again and removes acidic gases from the flue gas, thus making the flue gas treatment more thorough. This avoids the small particles in the flue gas being difficult to capture by the water flow and being discharged into the external environment with the gas, ensuring that the emission concentration of the flue gas meets the standards. Attached Figure Description

[0015] Figure 1 This is an isometric drawing of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the electrostatic dust removal box of this utility model;

[0018] Figure 4 This is a schematic diagram of the cleaning component structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the spray assembly structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the bent plate structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the cleaning component structure of this utility model.

[0022] In the diagram: 1. Flue gas treatment box; 2. Electrostatic dust removal box; 3. Electrostatic dust removal plate; 4. Ionizing rod; 5. Inlet pipe; 6. Mounting bracket; 7. Drive motor; 8. Rotating screw; 9. Moving plate; 10. Push column; 11. Mounting plate; 12. Cleaning plate; 13. Diverter pipe; 14. Water outlet pipe; 15. Nozzle; 16. Bending plate; 17. Vent hole; 18. Filter screen; 19. Rotating motor; 20. Rotating screw; 21. Screw sleeve; 22. Mounting column; 23. Cleaning block; 24. Rectangular column; 25. Sealing plate; 26. Sealing gasket; 27. Dust outlet; 28. Collection box; 29. ​​Cover plate; 30. Hook and loop lock. Detailed Implementation

[0023] 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.

[0024] Reference Figure 1-7 A safe high-temperature furnace gas emission device includes a flue gas treatment box 1. An electrostatic precipitator box 2 is fixedly installed on the left side of the flue gas treatment box 1. An electrostatic precipitator plate 3 and an ionization rod 4 are fixedly installed inside the electrostatic precipitator box 2. An air inlet pipe 5 is fixedly installed on the left side of the electrostatic precipitator box 2. A cleaning assembly for easy cleaning of the electrostatic precipitator plate 3 is provided on the surface of the electrostatic precipitator box 2. An air inlet is provided through the left side of the flue gas treatment box 1. A spray assembly is installed inside the flue gas treatment box 1, including components fixedly installed inside the flue gas treatment box 1. The water outlet pipe 14 has a fixed branch pipe 13 at its inlet end and a nozzle 15 fixed at its bottom. There are several water outlet pipes 14 arranged in a linear array. Alkaline water is transported to the water outlet pipes 14 via an external conveying device and then branched into different locations within the pipes 14 via the branch pipes 13. The alkaline water is then atomized and sprayed out through the nozzles 15. When the high-temperature furnace gas comes into contact with the alkaline water, particulate matter in the high-temperature furnace gas is captured by the water flow. Furthermore, the alkaline water flow neutralizes the acidic gases in the flue gas. Moreover, through the cooperation of water outlet pipes 14 and nozzles 15 at different locations, the flue gas can be treated multiple times, resulting in more thorough treatment. A bent plate 16 is fixedly installed inside the flue gas treatment box 1, with ventilation holes 17 penetrating its surface. A filter screen 18 is fixedly installed inside the flue gas treatment box 1, and a cleaning assembly is provided inside the flue gas treatment box 1 to facilitate cleaning of the filter screen 18. The high-temperature furnace gas is ionized by the ionization rod 4, thus ionizing the high-temperature furnace gas. Particulate matter in the air becomes charged. Under the influence of the electric field, the charged particles move towards the electrostatic precipitator plate 3 and are adsorbed by the electrostatic precipitator plate 3, removing small particles from the flue gas. The flue gas then enters the flue gas treatment box 1, where alkaline water is sprayed to treat the flue gas. The water flow captures the particles in the flue gas again and removes acidic gases from the flue gas, making the flue gas treatment more thorough. This avoids the small particles in the flue gas being difficult to capture by the water flow and being discharged into the external environment with the gas, ensuring that the emission concentration of the flue gas meets the standards.

[0025] Specifically, the cleaning components include a mounting bracket 6 fixedly installed on the top of the electrostatic precipitator 2. A drive motor 7 is fixedly installed on the top of the mounting bracket 6. A rotating screw 8 is fixedly installed at the output end of the drive motor 7. A moving plate 9 is threaded on the surface of the rotating screw 8. A push column 10 is fixedly installed at the bottom of the moving plate 9. The push column 10 is slidably connected to the electrostatic precipitator 2. A mounting plate 11 is fixedly installed at the bottom of the push column 10. Cleaning plates 12 are fixedly installed on both the front and rear sides of the mounting plate 11. A dust outlet 27 is provided through the bottom of the electrostatic precipitator 2. A collection box 28 is fixedly installed at the bottom of the electrostatic precipitator 2. A cover plate 29 is installed at the bottom of the collection box 28 via a hinge. A latch lock 30 connects the front side of the cover plate 29 and the front side of the collection box 28. When excessive particles adhere to the electrostatic precipitator plate 3, the drive motor 7 drives the output end to rotate the screw 8, causing the screw 8 to drive the moving plate 9 to move downward. The moving plate 9, through the push column 10, drives the mounting plate 11 to move downward, causing the mounting plate 11 to push the cleaning plate 12 to scrape off the particles attached to the surface of the electrostatic precipitator plate 3. The scraped particles enter the collection box 28 through the dust outlet 27 for collection. When the collection box 28 has collected all the particles, the latch lock 30 is opened, and the cover plate 29 is flipped over by the hinge to clean the electrostatic precipitator plate 3 and remove the cleaned particles. This prevents the electrostatic precipitator plate 3 from having excessive particles attached to its surface, which would reduce its dust removal capacity and cause some particles to enter the flue gas treatment box 1.

[0026] Specifically, the cleaning component includes a rotary motor 19 fixedly installed on the front side of the flue gas treatment box 1. A rotating screw 20 is fixedly installed at the output end of the rotary motor 19. A threaded sleeve 21 is threaded on the surface of the rotating screw 20. A mounting post 22 is fixedly installed at the bottom of the threaded sleeve 21. A rectangular post 24 is fixedly installed at the front side of the mounting post 22. A sealing plate 25 is fixedly installed at the front side of the rectangular post 24. A sealing gasket 26 is fixedly installed inside the sealing plate 25. A slot is fixedly installed on the front side of the flue gas treatment box 1. The sealing plate 25 and the sealing gasket 26 are both located inside the slot. When too many impurities accumulate on the surface of the filter screen 18, the rotary motor 19 drives the output end to rotate the rotating screw 20, causing the screw to rotate. The rotating screw 20 drives the screw sleeve 21 to move forward. The screw sleeve 21 drives the cleaning block 23 to move forward through the mounting post 22. The cleaning block 23 pushes the sealing plate 25 through the rectangular post 24, causing the sealing gasket 26 to move out of the groove. This allows the cleaning block 23 to push the accumulated impurities out through the groove. After the filter screen 18 is cleaned, the rotating motor 19 drives the output end to rotate the rotating screw 20 in the opposite direction. The screw sleeve 21 drives the cleaning block 23 to reset through the mounting post 22. This causes the rectangular post 24 to drive the sealing plate 25 into the groove. The sealing gasket 26 seals the gap between the sealing plate 25 and the groove, preventing the filter screen 18 from becoming clogged and unable to filter the water flow, thus ensuring the filtration effect of the filter screen 18 on the water flow.

[0027] This safe high-temperature furnace gas exhaust device is connected to 220V mains power, and the main controller can be a conventional known device such as a computer for control.

[0028] In operation: High-temperature furnace gas enters the electrostatic precipitator 2 through the inlet pipe 5 and passes between the electrostatic precipitator plates 3. The ionization rod 4, connected to the negative terminal of the power supply, ionizes the high-temperature furnace gas, causing the particulate matter to become charged. Under the influence of the electric field, the charged particles move towards and are adsorbed by the electrostatic precipitator plates 3. Subsequently, the high-temperature furnace gas enters the flue gas treatment box 1 through the inlet. Alkaline water is then transported to the outlet pipe 14 via an external conveying device and diverted through the branch pipe 13. The alkaline water is atomized and sprayed out through the nozzle 15 after entering the water outlet pipe 14 at different positions. When the high-temperature furnace gas comes into contact with the alkaline water, the particulate matter in the high-temperature furnace gas will be captured by the water, and the alkaline water will neutralize the acidic gas in the flue gas. At the same time, the high-temperature furnace gas can only pass through the vent 17, which allows the high-temperature furnace gas to stay for a longer time. The water is filtered through the filter screen 18. The treated water is discharged through the pipe on the right side of the flue gas treatment box 1, while the filtered water is discharged through the pipe on the rear side of the flue gas treatment box 1.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safe high-temperature furnace gas emission device, comprising a flue gas treatment box (1), characterized in that, An electrostatic precipitator (2) is fixedly installed on the left side of the flue gas treatment box (1). An electrostatic precipitator plate (3) and an ionization rod (4) are fixedly installed inside the electrostatic precipitator (2). An air inlet pipe (5) is fixedly installed on the left side of the electrostatic precipitator (2). A cleaning component is provided on the surface of the electrostatic precipitator (2) to facilitate cleaning of the electrostatic precipitator plate (3). An air inlet is provided through the left side of the flue gas treatment box (1). A spray component is provided inside the flue gas treatment box (1). A bending plate (16) is fixedly installed inside the flue gas treatment box (1). A ventilation hole (17) is provided through the surface of the bending plate (16). A filter screen (18) is fixedly installed inside the flue gas treatment box (1). A cleaning component is provided inside the flue gas treatment box (1) to facilitate cleaning of the filter screen (18).

2. The safe high-temperature furnace gas emission device according to claim 1, characterized in that, The cleaning assembly includes a mounting bracket (6) fixedly installed on the top of the electrostatic dust collector (2). A drive motor (7) is fixedly installed on the top of the mounting bracket (6). A rotating screw (8) is fixedly installed at the output end of the drive motor (7). A moving plate (9) is threaded on the surface of the rotating screw (8). A push column (10) is fixedly installed at the bottom of the moving plate (9). The push column (10) is slidably connected to the electrostatic dust collector (2). A mounting plate (11) is fixedly installed at the bottom of the push column (10). Cleaning plates (12) are fixedly installed on both the front and rear sides of the mounting plate (11).

3. The safe high-temperature furnace gas emission device according to claim 1, characterized in that, The spray assembly includes a water outlet pipe (14) fixedly installed inside the flue gas treatment box (1), a diversion pipe (13) fixedly installed at the water inlet end of the water outlet pipe (14), and a nozzle (15) fixedly installed at the bottom of the water outlet pipe (14).

4. The safe high-temperature furnace gas emission device according to claim 1, characterized in that, The cleaning component includes a rotary motor (19) fixedly installed on the front side of the flue gas treatment box (1). A rotating screw (20) is fixedly provided at the output end of the rotary motor (19). A threaded sleeve (21) is provided on the surface of the rotating screw (20). A mounting post (22) is fixedly provided at the bottom of the threaded sleeve (21). A mounting post (22) is fixedly provided at the bottom of the mounting post (22). A rectangular post (24) is fixedly provided on the front side of the mounting post (22). A sealing plate (25) is fixedly provided on the front side of the rectangular post (24). A sealing gasket (26) is fixedly provided inside the sealing plate (25).

5. A safe high-temperature furnace gas emission device according to claim 1, characterized in that, The bottom of the electrostatic dust collector (2) is provided with a dust outlet (27), and a collection box (28) is fixedly provided at the bottom of the electrostatic dust collector (2). A cover plate (29) is installed at the bottom of the collection box (28) by a hinge, and a latch lock (30) is connected between the front side of the cover plate (29) and the front side of the collection box (28).

6. A safe high-temperature furnace gas emission device according to claim 4, characterized in that, The flue gas treatment box (1) has a slot fixedly provided on the front side, and the sealing plate (25) and sealing gasket (26) are both located inside the slot.

7. A safe high-temperature furnace gas emission device according to claim 3, characterized in that, The number of water outlet pipes (14) is several, and the several water outlet pipes (14) are distributed in a linear array.

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