Impurity removal device for aluminum trichloride melting furnace
By designing a decompression device for aluminum chloride melting furnaces containing sprayers, inclined plates and pumps, the problems of dust blockage and flue gas cannot be cooled down are solved, the separation of flue gas and dust and the recycling of heat are realized, and the ecological environment is protected.
Patent Information
- Application Number
- CN202422003653.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-17
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-17
AI Technical Summary
The existing impurity removal device for aluminum trichloride melting furnaces is prone to blocking the filter plate due to dust after long-term use, which affects the flue gas discharge, and cannot cool down the flue gas, affecting the ecological environment.
A decomposition device including a decorative box, a smoke cylinder, a sprayer, a slope plate and a water pump is designed to cool the flue gas through the sprayer, and the separation of flue gas and dust and recovery of heat is achieved using the inclined plate and a water pump.
It effectively avoids dust blockage, and at the same time realizes cooling of smoke and recycling of heat, protecting the nearby ecological environment.
Smart Images
Figure CN222964441U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aluminum melting furnaces, and particularly relates to an impurity removal device for an aluminum trichloride melting furnace. Background Art
[0002] Aluminum trichloride belongs to inorganic chemical products and is the main raw material for preparing dyes. It is widely used in the synthesis of catalysts, petroleum cracking, synthesis of dyes, rubber, medicine, detergents, spices, pesticides, and the preparation of organoaluminum compounds. It is also used in metal smelting and lubricating oil processing. In the processing of aluminum trichloride, an aluminum melting furnace is required. When the aluminum melting furnace is performing aluminum melting operations, an impurity removal device is used to remove impurities from the generated flue gas. Some of the existing impurity removal devices for aluminum trichloride melting furnaces can filter out dust in the flue gas through a filter plate and can also recover and utilize the heat dissipated on the wall surface of the soot cylinder. However, after long-term exhaust operations, the dust may block the filter holes of the filter plate, affecting the discharge of the flue gas, and it cannot cool the flue gas, affecting the nearby ecological environment. Summary of the Utility Model
[0003] In view of this, the utility model provides an impurity removal device for an aluminum trichloride melting furnace, which can not only prevent dust from blocking the inclined plate, but also realize the recovery and utilization of heat while cooling the flue gas, protecting the nearby ecological environment.
[0004] To solve the above technical problems, the utility model provides a impurity removal device for an aluminum chloride melting furnace, which includes a melting furnace body. An impurity removal box is arranged on the surface of the melting furnace body. A fixing plate is arranged inside the impurity removal box. A soot cylinder is arranged at the upper end of the fixing plate. A water inlet pipe is arranged at the upper end of the impurity removal box. A sprayer is arranged at the bottom end of the water inlet pipe. An inclined plate is arranged at the bottom end of the fixing plate. A connecting plate is arranged at the bottom end of the inclined plate. Both the inclined plate and the connecting plate are made of water-permeable materials. A water pump is arranged at the bottom side inside the impurity removal box. A connecting pipe is connected to the water outlet of the water pump. A heat-absorbing water pipe is wound around the outer side of the soot cylinder. The upper end of the heat-absorbing water pipe is connected and communicated with the connecting pipe. The bottom end of the heat-absorbing water pipe is connected with a water outlet pipe. Workers can connect an external water source through the water inlet pipe and cool the flue gas through the sprayer, which not only realizes the heat exchange between the flue gas and water, but also avoids the high temperature of the flue gas during emission from affecting the ecological environment. The heated water will seep downward through the inclined plate, and the dust attached to the flue gas will be isolated on the inclined plate, so as to separate the flue gas from the dust and separate the water from the dust, realizing the impurity removal operation of the flue gas. Under the inclination of the inclined plate, it will fall onto the connecting plate, avoiding dust accumulation and blockage on the inclined plate. Workers can pump the separated water through the connecting pipe to the upper side of the heat-absorbing water pipe through the water pump and continuously flow downward along the heat-absorbing water pipe to be discharged through the water outlet pipe. The heat-absorbing water pipe can enable the water in the pipe to absorb the heat on the wall surface of the soot cylinder. When heated to a utilizable degree, it is then discharged outward through the water outlet pipe to realize the reuse of heat.
[0005] A filter box is arranged on the surface of the impurity removal box. A communicating pipe is connected to the bottom of the soot cylinder. The filter box is connected and communicated with the soot cylinder through the communicating pipe. An activated carbon plate is arranged inside the filter box. A smoke exhaust port is opened at the upper end of the filter box. A smoke inlet pipe connected to the melting furnace body is arranged at the upper end of the soot cylinder. When the melting furnace body is performing aluminum melting operation, flue gas will be generated. The flue gas enters the soot cylinder through the smoke inlet pipe. The heat in the flue gas will heat up the inside and the wall surface of the soot cylinder. The cooled flue gas can enter the filter box through the communicating pipe and be purified and filtered by the activated carbon plate, and finally be discharged outward through the smoke exhaust port.
[0006] Heat insulation layers are arranged on the inner wall surfaces of both the melting furnace body and the impurity removal box to avoid heat loss.
[0007] A support plate is arranged on the outer side of the melting furnace body. A nitrogen supplier is arranged at the upper end of the support plate. A nitrogen pipe is connected to the nitrogen supplier. A permeable brick is arranged at the bottom side inside the melting furnace body. The nitrogen pipe is connected and communicated with the permeable brick. Workers can start the nitrogen supplier to introduce the heated nitrogen into the permeable brick through the nitrogen pipe and discharge it into the inside of the molten aluminum. Through the full contact between nitrogen and molten aluminum, the hydrogen removal operation of the molten aluminum is realized, so as to ensure the strength of the molten aluminum after crystallization casting.
[0008] The surface of the impurity removal box is linked with a box door through a hinge. A handle is arranged on the surface of the box door. Staff can open the box door through the handle to clean the dust on the connecting plate. A rubber ring is arranged at the edge of the box door, which can prevent the water inside the impurity removal box from seeping outwards.
[0009] Support legs are arranged at the four corners of the bottom end of the aluminum melting furnace body.
[0010] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:
[0011] 1. When the present utility model is in use, it can not only prevent dust from clogging the inclined plate, but also realize the recovery and utilization of heat while cooling the flue gas, thus protecting the nearby ecological environment.
[0012] 2. When the present utility model is in use, flue gas is generated during the aluminum melting operation of the aluminum melting furnace body. The flue gas enters the dust chimney through the smoke inlet pipe. The heat in the flue gas will heat up the inside and the wall surface of the dust chimney. The cooled flue gas can enter the filter box through the connecting pipe and be purified and filtered by the activated carbon plate, and finally discharged outwards through the smoke outlet.
[0013] 3. When the present utility model is in use, a support plate is arranged on the outer side surface of the aluminum melting furnace body. A nitrogen gas supplier is arranged at the upper end of the support plate. A nitrogen gas pipe is connected to the nitrogen gas supplier. A permeable brick is arranged at the bottom side inside the aluminum melting furnace body. The nitrogen gas pipe is communicated with the permeable brick. Staff can start the nitrogen gas supplier to make the heated nitrogen gas enter the permeable brick through the nitrogen gas pipe and be discharged into the inside of the molten aluminum. Through the full contact of nitrogen gas with the molten aluminum, the hydrogen removal operation of the molten aluminum is realized, so as to ensure the strength of the molten aluminum after crystallization casting. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic structural diagram of the present utility model;
[0015] Figure 2 is a schematic structural diagram of the front side of the present utility model;
[0016] Figure 3 is a schematic structural diagram of the cross-section of the front side of the present utility model;
[0017] Figure 4 is a schematic structural diagram of the cross-section of the right side of the impurity removal box of the present utility model;
[0018] Figure 5 is an isometric cross-sectional structural diagram of the impurity removal box of the present utility model.
[0019] Description of the drawing reference numerals: 100, main body of the aluminum melting furnace; 200, impurity removal box; 301, fixing plate; 302, soot cylinder; 303, water inlet pipe; 304, sprayer; 305, inclined plate; 306, connecting plate; 307, water pump; 308, connecting pipe; 309, hot water suction pipe; 310, water outlet pipe; 401, connecting pipe; 402, filtering box; 403, activated carbon plate; 404, smoke outlet; 405, smoke inlet pipe; 501, support plate; 502, nitrogen gas supplier; 503, nitrogen gas pipe; 504, permeable brick; 600, box door; 700, support leg. Detailed implementation manners
[0020] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will, with reference to the accompanying drawings of the embodiments of the present utility model Figures 1-5 , clearly and completely describe the technical solutions of the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model fall within the scope of protection of the present utility model.
[0021] According to an embodiment of the present utility model, as Figure 3 , Figure 4 and Figure 5As shown in the figure: This embodiment provides an impurity removal device for an aluminum chloride melting furnace, including a melting furnace body 100. An impurity removal box 200 is provided on the surface of the melting furnace body 100. A fixing plate 301 is arranged inside the impurity removal box 200. A soot cylinder 302 is arranged at the upper end of the fixing plate 301. A water inlet pipe 303 is arranged at the upper end of the impurity removal box 200. A sprayer 304 is arranged at the bottom end of the water inlet pipe 303. An inclined plate 305 is arranged at the bottom end of the fixing plate 301. A connecting plate 306 is arranged at the bottom end of the inclined plate 305. Both the inclined plate 305 and the connecting plate 306 are made of water-permeable materials. A water pump 307 is arranged at the bottom side inside the impurity removal box 200. A connecting pipe 308 is connected to the water outlet of the water pump 307. A hot water suction pipe 309 is wound around the outer side surface of the soot cylinder 302. The upper end of the hot water suction pipe 309 is connected and communicated with the connecting pipe 308. The bottom end of the hot water suction pipe 309 is connected to a water outlet pipe 310. Workers can connect an external water source through the water inlet pipe 303 and cool the flue gas through the sprayer 304, which not only realizes the heat exchange between the flue gas and water but also avoids the high temperature of the flue gas during emission from affecting the ecological environment. The heated water will penetrate downward through the inclined plate 305, and the dust attached to the flue gas will be isolated on the inclined plate 305, thereby separating the flue gas from the dust and separating the water from the dust to achieve the impurity removal operation of the flue gas. Under the inclination of the inclined plate 305, it will fall onto the connecting plate 306 to prevent dust accumulation from blocking the inclined plate 305. Workers can use the water pump 307 to pump the separated water through the connecting pipe 308 to the upper side of the hot water suction pipe 309, and it will continuously flow downward along the hot water suction pipe 309 and be discharged through the water outlet pipe 310. The hot water suction pipe 309 can enable the water in the pipe to absorb the heat on the wall surface of the soot cylinder 302. When heated to a utilizable degree, it will be discharged outward through the water outlet pipe 310 to realize the reuse of heat. A filter box 402 is arranged on the surface of the impurity removal box 200. A communicating pipe 401 is connected to the bottom of the soot cylinder 302. The filter box 402 is connected and communicated with the soot cylinder 302 through the communicating pipe 401. An activated carbon plate 403 is arranged inside the filter box 402. A smoke exhaust port 404 is opened at the upper end of the filter box 402. A smoke inlet pipe 405 connected to the melting furnace body 100 is arranged at the upper end of the soot cylinder 302. When the melting furnace body 100 is performing aluminum melting operation, flue gas will be generated. The flue gas enters the soot cylinder 302 through the smoke inlet pipe 405. The heat in the flue gas will heat up the inside and the wall surface of the soot cylinder 302. The cooled flue gas can enter the filter box 402 through the communicating pipe 401 and be purified and filtered by the activated carbon plate 403, and finally be discharged outward through the smoke exhaust port 404.
[0022] According to another embodiment of the present invention, as Figure 1 、 Figure 2 and Figure 3As shown in the figure, heat insulation layers are provided on the inner wall surfaces of the molten aluminum furnace body 100 and the impurity removal box 200 to avoid heat loss. A support plate 501 is provided on the outer side surface of the molten aluminum furnace body 100. A nitrogen gas supplier 502 is provided at the upper end of the support plate 501. A nitrogen gas pipeline 503 is connected to the nitrogen gas supplier 502. A porous plug 504 is provided at the inner bottom side of the molten aluminum furnace body 100. The nitrogen gas pipeline 503 is communicated with the porous plug 504. Workers can start the nitrogen gas supplier 502 to allow the heated nitrogen gas to enter the porous plug 504 through the nitrogen gas pipeline 503 and be discharged into the interior of the molten aluminum. Through the full contact between the nitrogen gas and the molten aluminum, the hydrogen removal operation of the molten aluminum is realized, thereby ensuring the strength of the molten aluminum after crystallization casting. The surface of the impurity removal box 200 is hinged with a box door 600. A handle is provided on the surface of the box door 600. Workers can open the box door 600 through the handle to clean the dust on the connecting plate 306. A rubber ring is provided at the edge of the box door 600. The rubber ring can prevent the water inside the impurity removal box 200 from seeping out. Support legs 700 are provided at the four corners of the bottom end of the molten aluminum furnace body 100.
[0023] Usage method of the utility model: When melting aluminum in the main body 100 of the aluminum melting furnace, flue gas will be generated. The flue gas enters the dust chimney 302 through the smoke inlet pipe 405. The heat in the flue gas will heat up the inside and the wall surface of the dust chimney 302. The staff can connect an external water source through the water inlet pipe 303 and cool the flue gas through the sprayer 304. This not only realizes the heat exchange between the flue gas and water, but also avoids the high temperature of the flue gas during emission from affecting the ecological environment. The heated water will penetrate downward through the inclined plate 305, and the dust attached to the flue gas will be isolated on the inclined plate 305, so as to separate the flue gas from the dust and the water from the dust, realizing the impurity removal operation of the flue gas. Under the action of the inclination of the inclined plate 305, it will fall onto the connecting plate 306, avoiding dust accumulation and blockage on the inclined plate 305. The staff can use the water pump 307 to pump the separated water through the connecting pipe 308 to the upper side of the hot water suction pipe 309, and continuously flow downward along the hot water suction pipe 309 to be discharged through the water outlet pipe 310. The hot water suction pipe 309 can enable the water in the pipe to absorb the heat on the wall surface of the dust chimney 302. When heated to a utilizable degree, it is then discharged outward through the water outlet pipe 310, realizing the reuse of heat. The cooled flue gas can enter the filter box 402 through the communication pipe 401, and the flue gas is purified and filtered through the activated carbon plate 403, and finally discharged outward through the smoke outlet 404. The staff can start the nitrogen supplier 502, and the heated nitrogen enters the permeable brick 504 through the nitrogen pipe 503 and is discharged into the interior of the molten aluminum. Through the full contact between the nitrogen and the molten aluminum, the hydrogen removal operation of the molten aluminum is realized, thus ensuring the strength of the molten aluminum after crystallization casting. The staff can open the box door 600 by pulling the handle and clean the dust on the connecting plate 306. The utility model can not only avoid dust blockage of the inclined plate 305, but also realize the recovery and utilization of heat while cooling the flue gas, protecting the nearby ecological environment.
[0024] The above is the preferred implementation mode of the utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle described in the utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the utility model.
Claims
1. An impurity removal device for an aluminum chloride melting furnace, comprising an aluminum melting furnace body (100), wherein an impurity removal box (200) is arranged on the surface of the aluminum melting furnace body (100), characterized in that: The impurity removal box (200) is provided with a fixed plate (301) inside, a smoke tube (302) is provided at the upper end of the fixed plate (301), a water inlet pipe (303) is provided at the upper end of the impurity removal box (200), a sprinkler (304) is provided at the bottom end of the water inlet pipe (303), an inclined plate (305) is provided at the bottom end of the fixed plate (301), a connecting plate (306) is provided at the bottom end of the inclined plate (305), and the inclined plate (306) is provided at the bottom end of the inclined plate (306). 5) and the connecting plate (306) are both made of water-permeable material, a water pump (307) is arranged on the inner bottom side of the impurity removal box (200), a connecting pipe (308) is connected to the water outlet of the water pump (307), a hot water absorption pipe (309) is wound on the outer surface of the smoke and dust cylinder (302), the upper end of the hot water absorption pipe (309) is connected to the connecting pipe (308), and the bottom end of the hot water absorption pipe (309) is connected to the water outlet pipe (310).
2. An impurity removal device for an aluminum chloride melting furnace as claimed in claim 1, characterized in that: A filter box (402) is arranged on the surface of the impurity removal box (200), a connecting pipe (401) is connected to the bottom of the smoke tube (302), the filter box (402) and the smoke tube (302) are connected through the connecting pipe (401), an activated carbon plate (403) is arranged inside the filter box (402), a smoke exhaust port (404) is opened at the upper end of the filter box (402), and a smoke inlet pipe (405) connected to the aluminum melting furnace body (100) is arranged at the upper end of the smoke tube (302).
3. An impurity removal device for an aluminum chloride melting furnace as claimed in claim 1, characterized in that: The aluminum melting furnace body (100) and the inner wall surface of the impurity removal box (200) are both provided with a heat-insulating layer.
4. An impurity removal device for an aluminum chloride melting furnace as claimed in claim 1, characterized in that: A support plate (501) is arranged on the outer surface of the aluminum melting furnace body (100), a nitrogen supplier (502) is arranged on the upper end of the support plate (501), a nitrogen pipeline (503) is connected to the nitrogen supplier (502), and a permeable brick (504) is arranged on the inner bottom side of the aluminum melting furnace body (100), and the nitrogen pipeline (503) is connected to the permeable brick (504).
5. An impurity removal device for an aluminum chloride melting furnace as claimed in claim 1, characterized in that: The surface of the impurity removal box (200) is connected to a box door (600) via a hinge, a handle is provided on the surface of the box door (600), and a rubber ring is provided at the edge of the box door (600).
6. An impurity removal device for an aluminum chloride melting furnace as claimed in claim 1, characterized in that: Support legs (700) are provided at four corners of the bottom end of the aluminum melting furnace body (100).