Smelting furnace flue gas treatment equipment for aluminum plate production
The multi-step treatment system, consisting of a heater, catalytic bed, anode tube, and cathode wire, solves the problem that existing equipment cannot effectively remove impurities from flue gas, achieving efficient flue gas cooling and dust removal.
Patent Information
- Application Number
- CN202520394714.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing flue gas treatment equipment for aluminum plate production smelting furnaces cannot effectively remove water-insoluble impurities from the flue gas, resulting in poor flue gas treatment performance and environmental impact.
The dust removal system, consisting of a heater, catalytic bed, anode tube, and cathode wire, combined with spraying and activated carbon filter, treats flue gas through multiple steps of heating, catalytic decomposition, charge deposition, and filtration to improve dust removal efficiency.
It achieves efficient cooling and multiple dust removal of flue gas, significantly improving the quality of flue gas treatment and removing impurities and toxic gases that are difficult to dissolve in water.
Smart Images
Figure CN223895997U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum plate production technology, specifically to a smelting furnace flue gas treatment device for aluminum plate production. Background Technology
[0002] Aluminum plates are rectangular plates made by rolling aluminum ingots. In the production of aluminum plates, solid raw materials are heated and melted in a smelting furnace. After slag removal, refining and other operations, they are smelted into the required alloy. During the production process in the smelting furnace, a large amount of flue gas is often generated. This flue gas is at a high temperature and has a complex composition. If it is directly emitted, it will cause pollution to the environment.
[0003] Existing flue gas treatment equipment for aluminum plate production smelting furnaces generally uses spray components to spray the flue gas, and sprays water to remove dust and cool the flue gas. However, relying solely on spray components to remove dust from the flue gas means that impurities that are difficult to dissolve in water cannot be removed, resulting in the presence of harmful impurities in the flue gas and reducing the effectiveness of flue gas treatment. Utility Model Content
[0004] The purpose of this utility model is to provide a smelting furnace flue gas treatment device for aluminum plate production, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a flue gas treatment device for a smelting furnace in aluminum plate production, comprising a treatment box, a first partition connected to one side of the treatment box, a second partition connected to the other side of the treatment box, a spray chamber provided inside the treatment box between the first and second partitions, a heating combustion chamber opened inside the treatment box on one side of the first partition, a dust removal chamber opened inside the treatment box on one side of the second partition, heaters connected to the left and right side walls of the middle of the heating combustion chamber, a catalytic bed connected to the upper part of the heating combustion chamber, a baffle detachably installed inside the dust removal chamber, a plurality of anode tubes penetrating through the baffle, cathode wires provided inside the anode tubes, and an activated carbon filter screen provided on one side of the baffle.
[0006] Preferably, the top of the treatment box is connected to an exhaust assembly, the input end of the exhaust assembly is connected to an exhaust pipe, one end of the exhaust pipe extends into the interior of the heating combustion chamber, the output end of the exhaust assembly is connected to an aeration pipe, one end of the aeration pipe extends into the lower part of the inner cavity of the spray chamber.
[0007] Preferably, mounting plates are connected to both sides of the baffle at the connection between the dust removal chamber and the baffle. Bolts are threaded inside the mounting plates, and one end of the bolts extends through the mounting plates into the interior of the treatment box.
[0008] Preferably, a water tank is connected to the bottom of the treatment box, a water pump is connected inside the water tank, a water delivery pipe is connected to the output end of the water pump, and one end of the water delivery pipe extends into the spray chamber.
[0009] Preferably, the extension end of the water supply pipe is connected to a connecting pipe, and the bottom end of the connecting pipe is connected to a plurality of atomizing nozzles.
[0010] Preferably, a water outlet pipe is connected to the bottom of the spray chamber, and the bottom of the water outlet pipe extends into the water tank.
[0011] Preferably, an air inlet pipe is connected to one side surface of the processing box, one end of the air inlet pipe extends into the heating combustion chamber, and an exhaust pipe is connected to the top of the dust removal chamber.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] The flue gas treatment equipment for smelting furnaces used in aluminum plate production utilizes a heater, catalytic bed, anode tubes, and cathode wires. Flue gas generated inside the smelting furnace enters the heating and combustion chamber through the inlet pipe. The heater, once activated, heats the incompletely combusted flue gas to the combustion reaction temperature. The catalytic bed then decomposes the organic gases into carbon dioxide and water. The flue gas is then drawn from the heating and combustion chamber into a spray chamber via an exhaust assembly, extraction pipe, and aeration pipe. Atomizing nozzles spray the flue gas into the spray chamber, cooling and initially removing dust. The flue gas then enters the dust removal chamber through vents on the side surface of the second partition. As the flue gas flows into the anode tubes, negative charges are emitted by the cathode spikes on the cathode wires. Dust particles in the dust-laden flue gas acquire these negative charges, move towards the anode tubes, and deposit on the inner wall of the anode tubes, further removing dust. This secondary dust removal process improves the quality of flue gas dust removal. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall internal cross-sectional structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the back structure of the processing box of this utility model;
[0016] Figure 3 For the present utility model Figure 1 A magnified structural diagram of A in the middle;
[0017] Figure 4 This is a schematic diagram of the baffle structure of this utility model.
[0018] In the diagram: 1. Processing box; 2. First partition; 3. Second partition; 4. Spray chamber; 5. Heating and combustion chamber; 6. Dust removal chamber; 7. Heater; 8. Catalytic bed; 9. Exhaust assembly; 10. Exhaust pipe; 11. Aeration pipe; 12. Baffle; 13. Anode tube; 14. Cathode wire; 15. Mounting plate; 16. Bolt; 17. Water tank; 18. Water pump; 19. Water supply pipe; 20. Connecting pipe; 21. Atomizing nozzle; 22. Water outlet pipe; 23. Air inlet pipe; 24. Exhaust pipe; 25. Activated carbon filter. Detailed Implementation
[0019] 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.
[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] like Figures 1 to 4As shown, the flue gas treatment equipment for the smelting furnace in aluminum plate production in this embodiment includes a treatment box 1. A first partition 2 is connected to one side of the treatment box 1, and a second partition 3 is connected to the other side. A vent hole is provided through the side surface of the second partition 3 above the atomizing nozzle 21, allowing the flue gas inside the spray chamber 4 to flow into the dust removal chamber 6. A spray chamber 4 is located inside the treatment box 1 between the first partition 2 and the second partition 3. A heating combustion chamber 5 is located inside the treatment box 1 on one side of the first partition 2, and a dust removal chamber 6 is located inside the treatment box 1 on one side of the second partition 3. Heaters 7 are connected to both the left and right side walls of the middle of the heating combustion chamber 5. A catalytic bed 8 is connected to the upper part of the heating combustion chamber 5. A baffle 12 is detachably installed inside the dust removal chamber 6. Several anode tubes 13 are provided through the baffle 12, and cathode wires 14 are installed inside the anode tubes 13. The heater 7 heats the incompletely combusted flue gas to the temperature for combustion reaction. The organic gas is then decomposed into carbon dioxide and water by the catalytic bed 8. The flue gas inside the heated combustion chamber 5 is then drawn into the spray chamber 4 through the exhaust assembly 9, exhaust pipe 10 and aeration pipe 11. The flue gas inside the spray chamber 4 is sprayed by the atomizing nozzle 21 to cool and perform preliminary dust removal. The flue gas inside the spray chamber 4 enters the dust removal chamber 6 through the vent holes on the side surface of the second partition 3. The flue gas flows into the anode tube 13. The cathode spikes on the cathode wire 14 emit negative charges to the vicinity. The dust particles in the dust-laden flue gas will be attached to the negative charges and then move towards the anode tube 13 and deposit on the inner wall of the anode tube 13 for further dust removal. An activated carbon filter 25 is provided on one side of the baffle 12 to treat the toxic gases in the flue gas.
[0022] Specifically, the top of the treatment box 1 is connected to an exhaust assembly 9, the input end of the exhaust assembly 9 is connected to an exhaust pipe 10, one end of the exhaust pipe 10 extends into the interior of the heating combustion chamber 5, and the output end of the exhaust assembly 9 is connected to an aeration pipe 11, one end of the aeration pipe 11 extends into the lower part of the inner cavity of the spray chamber 4, and one end of the aeration pipe 11 extends from the lower part of the front end of the treatment box 1 into the interior of the spray chamber 4, and the outlet of the extended end of the aeration pipe 11 faces the direction of the atomizing nozzle 21. The exhaust gas inside the heating combustion chamber 5 is drawn into the spray chamber 4 through the exhaust assembly 9, the exhaust pipe 10 and the aeration pipe 11.
[0023] Furthermore, mounting plates 15 are connected to both sides of the baffle 12 at the connection between the dust removal chamber 6 and the baffle 12. Bolts 16 are threaded inside the mounting plates 15, with one end of the bolts 16 penetrating the mounting plates 15 and extending into the treatment box 1. By removing the bolts 16 from the mounting plates 15 and the treatment box 1, the baffle 12 can be disassembled from the dust removal chamber 6 to clean the dust inside the anode tube 13. A water tank 17 is connected to the bottom of the treatment box 1, and a sealing door is provided at the front end of the water tank 17. By opening the sealing door, impurities inside the water tank 17 can be periodically cleaned. A water pump 18 is connected inside the water tank 17. The system is equipped with a filter screen to remove impurities from the wastewater. The output end of the water pump 18 is connected to a water supply pipe 19, one end of which extends into the spray chamber 4. Water from the water tank 17 is transported to the connecting pipe 20 via the water pump 18 and the water supply pipe 19. The extended end of the water supply pipe 19 is connected to the connecting pipe 20, and several atomizing nozzles 21 are connected to the bottom of the connecting pipe 20. The spray nozzles 21 spray the inside of the spray chamber 4. The bottom of the spray chamber 4 is connected to a water outlet pipe 22, the bottom of which extends into the water tank 17. Wastewater from the spray chamber 4 flows into the water tank 17 through the water outlet pipe 22.
[0024] Furthermore, an air inlet pipe 23 is connected to one side of the treatment box 1. The flue gas generated inside the smelting furnace enters the heating combustion chamber 5 through the air inlet pipe 23. One end of the air inlet pipe 23 extends into the heating combustion chamber 5. An exhaust pipe 24 is connected to the top of the dust removal chamber 6. The exhaust pipe 24 discharges the treated flue gas to the outside.
[0025] The usage method of this embodiment is as follows: All electrical components mentioned in this application are externally connected to a power source and equipped with corresponding controllers. The flue gas generated inside the smelting furnace enters the heating combustion chamber 5 through the inlet pipe 23. The heater 7 is activated, heating the incompletely combusted flue gas to the combustion reaction temperature. The gas then passes through the catalytic bed 8, where the organic gases are decomposed into carbon dioxide and water. The flue gas inside the heating combustion chamber 5 is then drawn into the spray chamber 4 through the exhaust assembly 9, the exhaust pipe 10, and the aeration pipe 11. The flue gas inside the spray chamber 4 is sprayed through the atomizing nozzle 21, thus purifying the flue gas. After cooling and preliminary dust removal, the flue gas inside the spray chamber 4 enters the dust removal chamber 6 through the vent holes on the side surface of the second partition 3. The flue gas flows into the anode tube 13, and the cathode spikes on the cathode wire 14 will radiate negative charges to the vicinity. The dust particles in the dust-laden flue gas will be attached to the negative charges and then move towards the anode tube 13 and be deposited on the inner wall of the anode tube 13, further removing dust from the flue gas. This secondary dust removal improves the quality of flue gas dust removal. Then, the toxic gases in the flue gas are adsorbed by the activated carbon filter 25, and finally discharged to the outside through the exhaust pipe 24.
[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A smelting furnace flue gas treatment device for aluminum plate production, comprising a treatment box (1), characterized in that: The processing box (1) has a first partition (2) connected to one side and a second partition (3) connected to the other side. A spray chamber (4) is provided inside the processing box (1) between the first partition (2) and the second partition (3). A heating combustion chamber (5) is opened inside the processing box (1) on the side of the first partition (2). A dust removal chamber (6) is opened inside the processing box (1) on the side of the second partition (3). Heaters (7) are connected to the left and right side walls of the middle part of the heating combustion chamber (5). A catalyst bed (8) is connected to the upper part of the heating combustion chamber (5). A baffle (12) is detachably installed inside the dust removal chamber (6). Several anode tubes (13) are opened through the baffle (12). A cathode wire (14) is provided inside the anode tube (13). An activated carbon filter screen (25) is provided on one side of the baffle (12).
2. The smelting furnace flue gas treatment equipment for aluminum plate production according to claim 1, characterized in that: The top of the treatment box (1) is connected to a ventilation assembly (9), the input end of the ventilation assembly (9) is connected to a suction pipe (10), one end of the suction pipe (10) extends into the interior of the heating combustion chamber (5), the output end of the ventilation assembly (9) is connected to an aeration pipe (11), one end of the aeration pipe (11) extends into the lower part of the inner cavity of the spray chamber (4).
3. The smelting furnace flue gas treatment equipment for aluminum plate production according to claim 1, characterized in that: The baffle (12) at the connection between the dust removal chamber (6) and the baffle (12) is connected to both sides of the mounting plate (15). The mounting plate (15) is threaded with a bolt (16), and one end of the bolt (16) extends through the mounting plate (15) into the processing box (1).
4. The smelting furnace flue gas treatment equipment for aluminum plate production according to claim 1, characterized in that: The bottom of the treatment box (1) is connected to a water tank (17), and a water pump (18) is connected inside the water tank (17). The output end of the water pump (18) is connected to a water supply pipe (19), and one end of the water supply pipe (19) extends into the spray chamber (4).
5. The smelting furnace flue gas treatment equipment for aluminum plate production according to claim 4, characterized in that: The water supply pipe (19) is connected to a connecting pipe (20) at its extended end, and a number of atomizing nozzles (21) are connected to the bottom end of the connecting pipe (20).
6. The smelting furnace flue gas treatment equipment for aluminum plate production according to claim 4, characterized in that: The bottom of the spray chamber (4) is connected to a water outlet pipe (22), and the bottom of the water outlet pipe (22) extends into the water tank (17).
7. The smelting furnace flue gas treatment equipment for aluminum plate production according to claim 1, characterized in that: An air inlet pipe (23) is connected to one side surface of the processing box (1), one end of which extends into the heating combustion chamber (5), and an exhaust pipe (24) is connected to the top of the dust removal chamber (6).