Flue gas particle separation device for low-nitrogen combustion of industrial furnace

Abstract

The utility model relates to the technical field of industrial furnace low-nitrogen combustion flue gas treatment, in particular to an industrial furnace low-nitrogen combustion flue gas particle separation device which comprises a treatment box, a supporting plate is connected to the rear side of the treatment box through bolts, a heat collection box is welded to the rear side of the supporting plate, and a driving assembly is arranged at the bottom of the heat collection box. The low-nitrogen combustion industrial kiln is communicated with the low-nitrogen combustion industrial kiln through the communicating pipe, smoke generated by combustion enters the heat collecting box through the pipeline and the communicating pipe, heat is absorbed through the heat absorbing barrel and the heat conducting rod, the absorbed heat is guided into water in the heat absorbing barrel, and the gear is driven to rotate through the transmission shaft of the driving motor; the gear drives the heat absorption barrel, the gear ring, the heat conduction rod and the cleaning brush to rotate, the cleaning brush cleans the surface of the dust removal plate and the inner wall of the heat collection box, dust attached to the surface of the dust removal plate and the inner wall of the heat collection box is swept down, and a large amount of dust is prevented from being attached to the surface of the dust removal plate and the inner wall of the heat collection box.

Description

Technical Field

[0001] This utility model relates to the field of low-NOx combustion flue gas treatment technology in industrial furnaces and kilns, specifically to a particulate separation device for low-NOx combustion flue gas in industrial furnaces and kilns. Background Technology

[0002] Waste gas purification mainly refers to the treatment of industrial waste gases generated in industrial sites, such as particulate matter, flue gas, odorous gases, and toxic and harmful gases. When industrial furnaces and kilns are carrying out low-NOx combustion, they will produce a large amount of flue gas containing particles, which requires the use of flue gas particle separation devices.

[0003] According to the search, the announcement number is CN213823801U, and the name is a high-temperature flue gas particle separation device with multiple settling. It includes a shell, a cooling component and a settling component. Through research and analysis, it was found that although it has the advantages of reducing the harm of local scouring and flue gas retention caused by uneven airflow, achieving the separation of flue gas and particles, and having low flue gas resistance and low energy consumption, it still has the following disadvantages to a certain extent.

[0004] For example, during the use of this device, it can only process flue gas, and the heat contained in the flue gas will be directly lost. It cannot recover the heat, resulting in a large loss of energy and making it inconvenient for people to use. In order to solve the above technical problems, we have designed a flue gas particle separation device for low-NOx combustion in industrial furnaces and kilns. Utility Model Content

[0005] The purpose of this invention is to provide a particulate separation device for low-NOx combustion flue gas in industrial furnaces and kilns, which has the advantage of heat recovery. This solves the problem that the device can only process flue gas during use, and the heat contained in the flue gas is directly lost without being able to be recovered, resulting in a large loss of energy and inconvenience for users.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a particulate separation device for low-NOx combustion flue gas in industrial furnaces, comprising a processing box, a support plate bolted to the rear of the processing box, a heat collection box welded to the rear of the support plate, a drive assembly at the bottom of the heat collection box, a cover plate bolted to the top of the heat collection box, a heat absorption barrel extending through the top of the cover plate, a dust removal plate embedded in the front of the heat collection box, a gas guide pipe connected to the front of the heat collection box, the front of the gas guide pipe communicating with the processing box, an mounting plate bolted to the top of the processing box, a pump body bolted to the top of the mounting plate, a spray shell bolted to the bottom of the pump body, an exhaust pipe connected to the front of the processing box, a heat-conducting rod welded to the surface of the heat absorption barrel, and a cleaning brush bolted to the surface of the heat-conducting rod.

[0007] Preferably, the drive assembly includes a vertical plate, the top of which is welded to the heat collection box, and a drive motor is bolted to the rear side of the vertical plate. The drive motor's transmission shaft is fixedly fitted with a gear, and a gear ring is fixedly fitted on the surface of the heat absorption barrel.

[0008] Preferably, a high-temperature resistant bearing is provided at the connection between the surface of the heat-absorbing barrel and the heat-collecting box, and the surface of the gear meshes with the gear ring.

[0009] Preferably, the top of the heat absorption tank is connected to a water inlet pipe, the top of which is threaded with a first pipe cap, and the bottom of the heat absorption tank is connected to a drain pipe, the bottom of which is threaded with a second pipe cap.

[0010] Preferably, the rear side of the heat collection box is connected to a connecting pipe, the pump body's water suction pipe is connected to the treatment box through a pipe, and the pump body's water discharge pipe is connected to the spray shell through a pipe.

[0011] Preferably, a water supply pipe is connected to the right side of the treatment box, and a third pipe cap is threaded onto the right side of the water supply pipe. A filter plate is bolted to the front side of the exhaust pipe.

[0012] Preferably, a drain pipe is connected to the bottom right side of the treatment box, and a fourth pipe cover is fitted on the right side of the drain pipe.

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

[0014] This utility model connects to a low-NOx combustion industrial kiln via a connecting pipe. The flue gas generated during combustion enters the heat collection box through the pipe and connecting pipe, and absorbs heat through the heat absorption barrel and heat conduction rod. The absorbed heat is then transferred to the water in the heat absorption barrel, thereby recovering the heat. At the same time, the dust removal plate filters the flue gas particles.

[0015] This invention uses a drive motor's transmission shaft to rotate a gear, which in turn rotates the heat absorption tank, gear ring, heat-conducting rod, and cleaning brush. The cleaning brush cleans the surface of the dust removal plate and the inner wall of the heat collection box, removing dust adhering to these surfaces and preventing excessive dust accumulation. The filtered flue gas is then introduced into the treatment chamber through a duct. A pump extracts water from the treatment chamber and sprays it through a spray nozzle. The sprayed water treats the flue gas, removing particles and harmful substances. The treated flue gas is then discharged through an exhaust pipe. Attached Figure Description

[0016] Figure 1 This is an isometric view of the structure of this utility model;

[0017] Figure 2 This is a perspective view of the pump body and spray shell of this utility model;

[0018] Figure 3 This is a perspective view of the support plate and the connecting pipe of this utility model;

[0019] Figure 4 This is a perspective view of the cover plate and cleaning brush of this utility model.

[0020] In the diagram: 1. Processing box; 2. Support plate; 3. Heat collection box; 4. Dust removal plate; 5. Connecting pipe; 6. Cover plate; 7. Heat absorption tank; 8. Vertical plate; 9. Drive motor; 10. Gear; 11. Gear ring; 12. Heat conduction rod; 13. Cleaning brush; 14. Mounting plate; 15. Pump body; 16. Exhaust pipe; 17. Spray shell; 18. Air guide pipe; 19. Water filling pipe; 20. Sewage discharge pipe; 21. Drive assembly. Detailed Implementation

[0021] Please see Figures 1-4 A particulate separation device for low-NOx combustion flue gas in industrial furnaces includes a treatment box 1, a support plate 2 bolted to the rear of the treatment box 1, a heat collection box 3 welded to the rear of the support plate 2, a drive assembly 21 at the bottom of the heat collection box 3, a cover plate 6 bolted to the top of the heat collection box 3, a heat absorption barrel 7 extending through the top of the cover plate 6, a dust removal plate 4 embedded in the front of the heat collection box 3, a gas guide pipe 18 connected to the front of the heat collection box 3, the front of the gas guide pipe 18 connected to the treatment box 1, an mounting plate 14 bolted to the top of the treatment box 1, a pump body 15 bolted to the top of the mounting plate 14, a spray shell 17 bolted to the bottom of the pump body 15, an exhaust pipe 16 connected to the front of the treatment box 1, a heat-conducting rod 12 welded to the surface of the heat absorption barrel 7, and a cleaning brush 13 bolted to the surface of the heat-conducting rod 12.

[0022] Please see Figure 1 and Figure 4 The drive assembly 21 includes a vertical plate 8, the top of which is welded to the heat collection box 3. The rear side of the vertical plate 8 is connected to the drive motor 9 by bolts. By setting the vertical plate 8, it is easy to install and fix the drive motor 9, and it is easy for the drive motor 9 to work normally. The drive shaft of the drive motor 9 is fixedly sleeved with a gear 10, and the surface of the heat absorption barrel 7 is fixedly sleeved with a toothed ring 11.

[0023] Please see Figure 1 and Figure 4 A high-temperature resistant bearing is provided at the connection between the surface of the heat absorption barrel 7 and the heat collection box 3. By providing the high-temperature resistant bearing, the heat absorption barrel 7 can be rotated and can work normally. The surface of the gear 10 meshes with the gear ring 11.

[0024] Please see Figure 1The top of the heat absorption tank 7 is connected to a water inlet pipe, and the top of the water inlet pipe is threaded with a first pipe cap. The bottom of the heat absorption tank 7 is connected to a drain pipe, and the bottom of the drain pipe is threaded with a second pipe cap. By setting up the water inlet pipe and the drain pipe, it is easy to drain and replace the water in the heat absorption tank 7. By setting up the first pipe cap and the second pipe cap, it is easy to seal the water inlet pipe and the drain pipe, which can effectively prevent water from leaking out of the heat absorption tank 7.

[0025] Please see Figure 1 and Figure 2 The rear side of the heat collector box 3 is connected to a connecting pipe 5. By setting the connecting pipe 5, it is easy to connect the heat collector box 3 to the combustion furnace and to easily introduce flue gas into the heat collector box 3. The water pumping pipe of the pump body 15 is connected to the treatment box 1 through a pipe, and the water outlet pipe of the pump body 15 is connected to the spray shell 17 through a pipe.

[0026] Please see Figure 1 The right side of the treatment box 1 is connected to a water supply pipe 19. By setting the water supply pipe 19, it is easy to add spray water into the treatment box 1, and it is easy to spray the flue gas. The right side of the water supply pipe 19 is threaded with a third pipe cover. The front side of the exhaust pipe 16 is connected to a filter plate by bolts. By setting the filter plate, it can play a filtering role and effectively prevent impurities from entering the treatment box 1.

[0027] Please see Figure 1 The bottom right side of the treatment tank 1 is connected to a drain pipe 20. By setting the drain pipe 20, it is easy to discharge the sewage in the treatment tank 1. A fourth pipe cover is fitted on the right side of the drain pipe 20. By setting the fourth pipe cover, it is easy to seal the drain pipe 20 and effectively prevent sewage leakage.

[0028] In use, the device is controlled by an external controller and connected to a low-NOx industrial kiln via a connecting pipe 5. The flue gas generated during combustion enters the heat collection box 3 through the pipe and connecting pipe 5, where it absorbs heat through the heat absorption tank 7 and the heat conduction rod 12. The absorbed heat is then transferred to the water in the heat absorption tank 7 for heat recovery. Simultaneously, dust particles are filtered by the dust removal plate 4. The drive motor 9 drives the gear 10 to rotate, which in turn drives the heat absorption tank 7, the gear ring 11, the heat conduction rod 12, and the cleaning brush 1. 3 rotates, and the cleaning brush 13 cleans the surface of the dust removal plate 4 and the inner wall of the heat collection box 3, sweeping off the dust adhering to the surface of the dust removal plate 4 and the inner wall of the heat collection box 3, preventing a large amount of dust from adhering to the surface of the dust removal plate 4 and the inner wall of the heat collection box 3. The filtered smoke and dust are introduced into the treatment box 1 through the air guide pipe 18. The water in the treatment box 1 is drawn out by the pump body 15 and sprayed out through the spray shell 17. The sprayed water sprays the flue gas to treat the particles and harmful substances in the flue gas. The treated flue gas is discharged through the exhaust pipe 16.

[0029] In summary, this low-NOx combustion flue gas particle separation device for industrial furnaces, through the spray shell 17, air guide pipe 18, water supply pipe 19, sewage discharge pipe 20, and drive assembly 21, solves the problem that during the operation of this device, it can only treat flue gas, and the heat contained in the flue gas is directly lost without being able to recover the heat, resulting in a large loss of energy and inconvenience for users.

Claims

1. A particulate separation device for flue gas from low-NOx combustion in industrial furnaces, comprising a processing box (1), characterized in that: The rear side of the processing box (1) is bolted to a support plate (2), and a heat collection box (3) is welded to the rear side of the support plate (2). A drive assembly (21) is provided at the bottom of the heat collection box (3). A cover plate (6) is bolted to the top of the heat collection box (3), and a heat absorption barrel (7) is provided through the top of the cover plate (6). A dust removal plate (4) is embedded in the front side of the heat collection box (3), and a duct pipe (18) is connected to the front side of the heat collection box (3). The front side of 18) is connected to the treatment box (1). The top of the treatment box (1) is connected to the mounting plate (14) by bolts. The top of the mounting plate (14) is connected to the pump body (15) by bolts. The bottom of the pump body (15) is connected to the spray shell (17) by bolts. The front side of the treatment box (1) is connected to the exhaust pipe (16). The surface of the heat absorption barrel (7) is welded with a heat-conducting rod (12). The surface of the heat-conducting rod (12) is connected to a cleaning brush (13) by bolts.

2. The particulate separation device for low-NOx combustion flue gas in industrial furnaces and kilns according to claim 1, characterized in that: The drive assembly (21) includes a vertical plate (8), the top of which is welded to the heat collection box (3), and a drive motor (9) is bolted to the rear side of the vertical plate (8). A gear (10) is fixedly sleeved on the drive shaft of the drive motor (9), and a toothed ring (11) is fixedly sleeved on the surface of the heat absorption barrel (7).

3. The particulate separation device for low-NOx combustion flue gas in industrial furnaces and kilns according to claim 2, characterized in that: A high-temperature resistant bearing is provided at the connection between the surface of the heat-absorbing barrel (7) and the heat-collecting box (3), and the surface of the gear (10) meshes with the gear ring (11).

4. The particulate separation device for low-NOx combustion flue gas in industrial furnaces and kilns according to claim 1, characterized in that: The top of the heat absorption tank (7) is connected to a water inlet pipe, and the top of the water inlet pipe is threaded with a first pipe cap. The bottom of the heat absorption tank (7) is connected to a drain pipe, and the bottom of the drain pipe is threaded with a second pipe cap.

5. The particulate separation device for low-NOx combustion flue gas in industrial furnaces and kilns according to claim 1, characterized in that: The rear side of the heat collection box (3) is connected to a connecting pipe (5), the water pumping pipe of the pump body (15) is connected to the treatment box (1) through a pipe, and the water outlet pipe of the pump body (15) is connected to the spray shell (17) through a pipe.

6. The particulate separation device for low-NOx combustion flue gas in industrial furnaces and kilns according to claim 1, characterized in that: The right side of the treatment box (1) is connected to a water supply pipe (19), and the right side of the water supply pipe (19) is threaded with a third pipe cap. The front side of the exhaust pipe (16) is connected to a filter plate by bolts.

7. The particulate separation device for low-NOx combustion flue gas in industrial furnaces and kilns according to claim 1, characterized in that: The bottom right side of the treatment box (1) is connected to a drain pipe (20), and a fourth pipe cover is fitted on the right side of the drain pipe (20).

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