Waste gas treatment equipment for three-chamber furnace for waste aluminum recovery

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses waste gas treatment equipment for a three-chamber furnace for waste aluminum recovery, which comprises a cooling cylinder and a spray tower, the spray tower is fixedly connected to one side of the cooling cylinder, a three-way pipe is communicated and connected to the center of the top end of the cooling cylinder, and the gas inlet end of the three-way pipe is communicated and connected with the three-chamber furnace respectively. The center position of the bottom end of the cooling cylinder is communicated and connected with a smoke guide pipe, and the tail end of the smoke guide pipe is communicated and connected with the bottom end of the spray tower; the waste gas treatment device can effectively recover heat in waste gas, improves the utilization rate of energy, can automatically filter smoke dust in waste water during spraying and washing, also can automatically clean a filtering structure, improves the recovery efficiency of waste water treatment, enables the waste water to be recycled, avoids waste, and is suitable for popularization and application. The waste gas treatment cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to waste gas treatment equipment for a three-chamber furnace used for recycling waste aluminum. Background Art

[0002] With the progress of industrialization, even if the scrap aluminum and scrap aluminum products produced in the production process have lost their original value, through the recycling of aluminum, aluminum can be made into a reusable resource, which is an extremely effective way to solve the shortage of bauxite resources in my country. The three-chamber furnace is a kind of equipment used for scrap aluminum recycling, which usually includes a preheating chamber, an incineration chamber and a cooling chamber. The scrap aluminum material is first placed in the preheating chamber to increase its temperature. Next, the heated scrap aluminum material is moved to the incineration chamber for high-temperature combustion and decomposition, so that the impurities are burned off and pure aluminum material is obtained. Finally, the processed aluminum material is transferred to the cooling chamber for cooling, and then it can enter the subsequent processing flow. Recycling scrap aluminum through a three-chamber furnace can effectively reuse scrap aluminum materials and reduce resource waste;

[0003] The waste gas generated by the three-chamber furnace when melting scrap aluminum usually has a high temperature and smoke. The existing waste gas treatment equipment usually uses a spray tower to spray and clean the waste gas generated by the three-chamber furnace, which can not only achieve cooling but also avoid the dust contained in the flue gas from being discharged and polluting the working environment. However, the high-temperature heat of the flue gas is wasted during the spraying process, and a large amount of water is consumed during the spraying process, thereby increasing the cost of waste gas treatment. For this reason, we propose a waste gas treatment equipment for a three-chamber furnace for scrap aluminum recovery. Utility Model Content

[0004] The main purpose of the utility model is to provide an exhaust gas treatment device for a three-chamber furnace for recycling waste aluminum, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust gas treatment device for a three-chamber furnace for recycling scrap aluminum, comprising a cooling cylinder and a spray tower, and the spray tower is fixedly connected to one side of the cooling cylinder, a three-way pipe is interconnected at the center position of the top of the cooling cylinder, and the air inlet ends of the three-way pipe are interconnected with the three-chamber furnace respectively, a smoke guide pipe is interconnected at the center position of the bottom end of the cooling cylinder, and the end of the smoke guide pipe is interconnected with the bottom end of the spray tower, and a serpentine is vertically arranged in the inner cavity of the cooling cylinder Heat exchange tube, and the serpentine heat exchange tube inlet pipe is interconnected with the three-way tube, the serpentine heat exchange tube outlet end is interconnected with the smoke guide tube, the upper end of the spray tower inner cavity is detachably connected with a spray head, the top of the spray head is interconnected with a circulation pipe, the bottom end of the spray tower is interconnected with a return pipe, the bottom end of the return pipe is interconnected with a water storage cylinder, and the end of the circulation pipe is interconnected with a water suction pump matched with the inner cavity of the water storage cylinder, and the end of the circulation pipe relative to the water storage cylinder is interconnected with the spray head.

[0006] Preferably, a servo motor is embedded and connected to the top of the spray tower, and the power output end of the servo motor is detachably connected to a transmission rod, and the transmission rod extends to the bottom of the inner cavity of the spray tower, and the lower end of the inner cavity of the spray tower is detachably connected to a filter plate, and the center position of the filter plate is arranged on the surface of the transmission rod through a rotating connecting shaft sleeve, and a cleaning scraper is provided on the upper surface of the filter plate, and the cleaning scraper is detachably connected to the surface of the transmission rod.

[0007] Preferably, a spoiler is fixedly connected to the surface of the transmission rod, and there are multiple spoilers.

[0008] Preferably, a heat-insulating layer is fixedly connected to the inner wall of the cooling cylinder.

[0009] Preferably, the upper end of one side of the cooling cylinder is interconnected with a water injection pipe, and the lower end of the cooling cylinder, which is located on the same side of the water injection pipe, is interconnected with a drainage pipe.

[0010] Preferably, valves are provided in the inner cavities of the water injection pipe and the drainage pipe.

[0011] Preferably, one end of the three-way pipe is provided with a matching exhaust fan.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model cooperates with each other by arranging a cooling cylinder, a serpentine heat exchange tube, a spray tower, a spray head, a water storage cylinder, a reflux cylinder, a filter plate, a circulation pipe, a servo motor, a transmission rod, and a spoiler. When the flue gas in the three-chamber furnace is discharged into the cooling cylinder through a three-way pipe, it will exchange heat with the water injected into the cooling cylinder through the serpentine heat exchange tube, so as to recover the heat in the high-temperature exhaust gas, and after cooling, it will be transported into the spray tower through the smoke guide pipe, and the water will be sucked by the liquid suction pump provided inside the water storage cylinder and then transported to the spray head through the circulation pipe, and the heat will be discharged into the cooling cylinder through the serpentine heat exchange tube. The shower head sprays and cleans the input flue gas, and the servo motor drives the transmission rod and the spoiler on the surface of the rotating rod to rotate, so that the flue gas can fully contact with the water body, effectively improving the cleaning effect, and effectively removing the smoke dust in the flue gas. The waste water after spraying flows back into the water storage cylinder along the spray tower and the reflux pipe set at the bottom of the spray tower. During the reflux process, the filter plate will filter the waste water to remove impurities in the water body, so that the clean water flows back into the water storage cylinder for recycling, avoiding waste of water resources and reducing the cost of waste gas treatment.

[0014] 2. The utility model uses the filter plate and the cleaning scraper. During the transmission process of the transmission rod, the cleaning scraper on the surface of the filter plate will be driven to rotate, thereby cleaning the surface of the filter plate to prevent impurities from clogging the filter plate and ensuring the water permeability of the filter plate. The filter plate allows the water to flow back into the liquid storage cylinder effectively while filtering, so that the water is recycled while ensuring the spray washing effect on the flue gas, thereby effectively improving the flue gas treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the cooling cylinder of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the spray tower of the utility model.

[0018] In the figure: 1. Cooling cylinder; 2. Spray tower; 3. Water storage cylinder; 4. Water injection pipe; 5. Drain pipe; 6. Smoke guide pipe; 7. Three-way pipe; 8. Servo motor; 9. Circulation pipe; 10. Reflux pipe; 11. Insulation layer; 12. Serpentine heat exchange tube; 13. Transmission rod; 14. Spray head; 15. Spoiler; 16. Cleaning scraper; 17. Filter plate. DETAILED DESCRIPTION

[0019] 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.

[0020] Example

[0021] See also Figure 1 - Figure 3The waste gas treatment equipment for a three-chamber furnace for recycling waste aluminum shown in the figure includes a cooling cylinder 1 and a spray tower 2, and the spray tower 2 is fixedly connected to one side of the cooling cylinder 1. A three-way pipe 7 is interconnected at the center position of the top of the cooling cylinder 1, and the air inlet ends of the three-way pipe 7 are interconnected with the three-chamber furnace respectively. A smoke guide pipe 6 is interconnected at the center position of the bottom end of the cooling cylinder 1, and the end of the smoke guide pipe 6 is interconnected with the bottom end of the spray tower 2. The inner cavity of the cooling cylinder 1 is vertically provided with a serpentine heat exchanger. The serpentine heat exchange tube 12 is interconnected with the three-way tube 7, the serpentine heat exchange tube 12 outlet end is interconnected with the smoke guide tube 6, the spray head 14 is detachably connected to the upper end of the inner cavity of the spray tower 2, the top of the spray head 14 is interconnected with the circulation tube 9, the bottom of the spray tower 2 is interconnected with the return pipe 10, the bottom of the return pipe 10 is interconnected with the water storage cylinder 3, and the end of the circulation pipe 9 is interconnected with the water suction pump provided in the inner cavity of the water storage cylinder 3, and the circulation One end of the annular tube 9 relative to the water storage cylinder 3 is interconnected with the spray head 14; when the flue gas in the three-chamber furnace is discharged into the cooling cylinder 1 through the three-way pipe 7, it will exchange heat with the water injected into the cooling cylinder 1 through the serpentine heat exchange tube 12, so as to recover the heat in the high-temperature exhaust gas, and after cooling, it will be transported into the spray tower 2 through the smoke guide pipe 6, and the water will be sucked by the suction pump provided inside the water storage cylinder 3 and then transported into the spray head 14 through the circulation pipe 9, and the input flue gas will be sprayed and cleaned by the spray head 14 to effectively remove the smoke dust in the flue gas, and the waste water after spraying will flow back into the water storage cylinder 3 along the spray tower 2 and the reflux pipe 10 provided at the bottom of the spray tower 2, and the filter plate 17 will filter the waste water during the reflux process to remove impurities in the water, so that the clean water will flow back into the water storage cylinder 3 for recycling, thereby avoiding the waste of water resources and reducing the cost of exhaust gas treatment.

[0022] Among them, the top of the spray tower 2 is inlaid with a servo motor 8, the power output end of the servo motor 8 is detachably connected to a transmission rod 13, and the transmission rod 13 extends to the bottom of the inner cavity of the spray tower 2, and the lower end of the inner cavity of the spray tower 2 is detachably connected to a filter plate 17, and the center position of the filter plate 17 is arranged on the surface of the transmission rod 13 through a rotating connecting shaft sleeve, and a cleaning scraper 16 is arranged on the upper surface of the filter plate 17, and the cleaning scraper 16 is detachably connected to the surface of the transmission rod 13, and a spoiler 15 is fixedly connected to the surface of the transmission rod 13, and there are multiple spoilers 15; the servo motor 8 is provided with The driving rod 13 and the spoiler 15 on the surface of the rotating rod rotate, so that the flue gas can fully contact the water body, effectively improving the cleaning effect, and effectively removing the smoke in the flue gas. During the transmission of the driving rod 13, the cleaning scraper 16 on the surface of the filter plate will be driven to rotate, thereby cleaning the surface of the filter plate 17 to prevent impurities from clogging the filter plate 17, ensuring the water permeability of the filter plate 17, so that the filter plate 17 can allow the water body to effectively flow back into the liquid storage cylinder while filtering, so that the water body is recycled while ensuring the spray washing effect of the flue gas.

[0023] The inner wall of the cooling cylinder 1 is fixedly connected with a heat-insulating layer 11 ; the hot water in the water storage cylinder 3 is kept warm by means of the heat-insulating layer 11 to avoid heat loss.

[0024] Among them, the upper end of one side of the cooling cylinder 1 is interconnected with a water injection pipe 4, and the bottom end of the cooling cylinder 1 on the same side of the water injection pipe 4 is interconnected with a drainage pipe 5, and valves are provided in the inner cavities of the water injection pipe 4 and the drainage pipe 5; clean cold water is injected into the high-temperature flue gas in the serpentine heat exchange tube 12 in the cooling cylinder 1 through the water injection pipe 4 for heat exchange, so as to recover heat, and the heated clean water is discharged through the drainage pipe 5 for use, thereby improving the utilization rate of energy.

[0025] Among them, one end of the three-way pipe 7 is provided with a matching exhaust fan; during the smoke exhaust process, the smoke can be quickly transported into the cooling cylinder 1 for cooling through the exhaust fan, thereby improving the smoke treatment efficiency.

[0026] It should be noted that the utility model is an exhaust gas treatment device for a three-chamber furnace for recycling waste aluminum. The air inlet of the three-way pipe 7 is connected to the air outlet of the three-chamber furnace. The exhaust fan provided at one end of the three-way pipe 7 is used to discharge the flue gas in the three-chamber furnace into the cooling cylinder 1 through the three-way pipe 7, and clean water is injected into the water storage cylinder 3 through the water injection pipe 4. Heat exchange is carried out with the water injected into the cooling cylinder 1 through the serpentine heat exchange pipe 12, and the hot water in the water storage cylinder 3 is insulated with the help of the insulation layer 11, so as to recover the heat in the high-temperature exhaust gas, effectively improve the utilization rate of energy, and after cooling, it is transported into the spray tower 2 through the smoke guide pipe 6, and with the help of the supporting arrangement inside the water storage cylinder 3 The suction pump absorbs water and transports it to the spray head 14 through the circulation pipe 9. The input flue gas is sprayed and cleaned through the spray head 14. The servo motor 8 drives the transmission rod 13 and the spoiler 15 on the surface of the rotating rod to rotate, so that the flue gas can fully contact with the water body, effectively improving the cleaning effect, and effectively removing the smoke dust in the flue gas. The waste water after spraying flows back into the water storage cylinder 3 along the spray tower 2 and the reflux pipe 10 arranged at the bottom of the spray tower 2, and the filter plate 17 will filter the waste water during the reflux process to remove impurities in the water body, so that the clean water flows back into the water storage cylinder 3 for recycling, avoiding waste of water resources and reducing the cost of waste gas treatment.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas treatment device for a three-chamber furnace for recycling waste aluminum, comprising a cooling cylinder (1) and a spray tower (2), wherein the spray tower (2) is fixedly connected to one side of the cooling cylinder (1), characterized in that: A three-way pipe (7) is interconnected at the center position of the top of the cooling cylinder (1), and the air inlet end of the three-way pipe (7) is interconnected with the three-chamber furnace respectively; a smoke guide pipe (6) is interconnected at the center position of the bottom of the cooling cylinder (1), and the end of the smoke guide pipe (6) is interconnected with the bottom end of the spray tower (2); a serpentine heat exchange pipe (12) is vertically arranged in the inner cavity of the cooling cylinder (1), and the air inlet pipe of the serpentine heat exchange pipe (12) is interconnected with the three-way pipe (7), and the air outlet end of the serpentine heat exchange pipe (12) is interconnected with the smoke guide pipe (6). The pipes (6) are interconnected, the upper end of the inner cavity of the spray tower (2) is detachably connected to a spray head (14), the top of the spray head (14) is interconnected to a circulation pipe (9), the bottom end of the spray tower (2) is interconnected to a return pipe (10), the bottom end of the return pipe (10) is interconnected to a water storage cylinder (3), and the end of the circulation pipe (9) is interconnected to a water suction pump matched with the inner cavity of the water storage cylinder (3), and one end of the circulation pipe (9) relative to the water storage cylinder (3) is interconnected to the spray head (14).

2. The exhaust gas treatment equipment for a three-chamber furnace for recycling scrap aluminum according to claim 1 is characterized in that: A servo motor (8) is embedded and connected to the top of the spray tower (2); a transmission rod (13) is detachably connected to the power output end of the servo motor (8), and the transmission rod (13) extends to the bottom end of the inner cavity of the spray tower (2); a filter plate (17) is detachably connected to the lower end of the inner cavity of the spray tower (2), and the center position of the filter plate (17) is arranged on the surface of the transmission rod (13) through a rotating connecting shaft sleeve; a cleaning scraper (16) is arranged on the upper surface of the filter plate (17), and the cleaning scraper (16) is detachably connected to the surface of the transmission rod (13).

3. The exhaust gas treatment equipment for a three-chamber furnace for recycling scrap aluminum according to claim 2 is characterized in that: A spoiler (15) is fixedly connected to the surface of the transmission rod (13), and there are a plurality of spoilers (15).

4. The exhaust gas treatment equipment for a three-chamber furnace for recycling scrap aluminum according to claim 1 is characterized in that: The inner wall of the cooling cylinder (1) is fixedly connected with a heat-insulating layer (11).

5. The exhaust gas treatment equipment for a three-chamber furnace for recycling scrap aluminum according to claim 1 is characterized in that: The upper end of one side of the cooling cylinder (1) is interconnected with a water injection pipe (4), and the lower end of the cooling cylinder (1) located on the same side of the water injection pipe (4) is interconnected with a drainage pipe (5).

6. The exhaust gas treatment equipment for a three-chamber furnace for recycling scrap aluminum according to claim 5 is characterized in that: The inner cavities of the water injection pipe (4) and the drainage pipe (5) are both provided with valves.

7. The exhaust gas treatment equipment for a three-chamber furnace for recycling scrap aluminum according to claim 1 is characterized in that: One end of the three-way pipe (7) is provided with a matching exhaust fan.

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