System for preparing corundum from secondary aluminum ash

Abstract

The utility model relates to a system for preparing corundum from secondary aluminum ash, which comprises a spiral feeding mechanism used for conveying aluminum ash, an ash frying machine used for stirring and separating molten aluminum from the aluminum ash, a filtering mechanism used for filtering harmful gas containing dust, and a settling pond used for settling waste liquid generated by filtering which are sequentially arranged from left to right, an aluminum ash input port used for being communicated with the output end of the spiral feeding mechanism is formed in the upper portion of the outer wall of one side of the ash frying machine, a molten aluminum input port is formed in the position, above the aluminum ash input port, of the outer wall of the ash frying machine, and a molten aluminum hopper is arranged at the molten aluminum input port in a communicated mode. A waste gas port provided with a sucking pump is formed in the upper portion of the outer wall, away from the spiral feeding mechanism, of the ash frying machine, the output end of the sucking pump communicates with the lower portion of the inner wall of the left side of the filtering mechanism through a gas conveying pipe, and an exhaust port used for exhausting is formed in the top end of the filtering mechanism; a liquid outlet for mounting an infusion pump is formed in the lower part of the outer wall of the filtering mechanism far away from the ash frying machine; the output end of the infusion pump is communicated to the top end of the inner wall of the sedimentation tank through a liquid discharge pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum ash regeneration, in particular to a system for preparing corundum from secondary aluminum ash. Background Art

[0002] Aluminum ash: It is divided into primary aluminum ash and secondary aluminum ash. Secondary aluminum ash is the waste after the extraction of metallic aluminum from primary aluminum ash. Its main components are aluminum oxide (30%-70%), aluminum nitride (5%-30%), metallic aluminum (1%-10%), salts (5%-25%) and other components.

[0003] The existing secondary aluminum ash resources are mainly obtained from recycled scrap aluminum, which includes pure aluminum scraps from aluminum processing enterprises, deformed aluminum alloys from old buildings on construction sites, cast aluminum alloys, aluminum core wires and scrap aluminum products. In the traditional secondary aluminum ash processing process, the aluminum ash slag is naturally cooled or air-cooled, and then the slag is crushed mechanically or manually, and the aluminum in the slag is recovered. After that, the aluminum ash is environmentally treated according to the aluminum ash processing process through ash roasting machines, dumping machines, ash cooling machines and screening machines, and used in the subsequent corundum generation.

[0004] Today's aluminum ash roasting machines mix aluminum liquid and aluminum ash for stirring and separation during the processing of aluminum ash. Due to the stirring of the aluminum ash roasting machine and the high temperature of the aluminum liquid itself, the air will be filled with waste gas containing dust and harmful substances. The waste gas can be easily inhaled by operators, posing a threat to their health. At the same time, since the aluminum ash roasting machine also generates a lot of dust during the processing process, it will also affect the quality of the produced materials. Utility Model Content

[0005] The utility model aims to provide a system for preparing corundum from secondary aluminum ash to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a system for preparing corundum from secondary aluminum ash, comprising a spiral feeding mechanism for conveying aluminum ash, a ash roasting machine for stirring and separating aluminum liquid and aluminum ash, a filtering mechanism for filtering harmful gases containing dust, and a sedimentation tank for settling waste liquid generated by filtration, wherein an aluminum ash input port for communicating with an output end of the spiral feeding mechanism is arranged on the upper part of the outer wall of one side of the ash roasting machine, an aluminum liquid input port is arranged on the outer wall of the ash roasting machine above the aluminum ash input port, an aluminum liquid hopper is arranged in communication with the aluminum liquid input port, an exhaust port with an air pump installed is arranged on the upper part of the outer wall of the ash roasting machine away from the spiral feeding mechanism, the output end of the air pump is connected to the lower part of the left inner wall of the filtering mechanism through an air delivery pipe, an exhaust port for exhaust is arranged on the top of the filtering mechanism, a discharge port for installing a liquid pump is arranged on the lower part of the outer wall of the filtering mechanism away from the ash roasting machine, and the output end of the liquid pump is connected to the top of the inner wall of the sedimentation tank through a discharge pipe.

[0007] Furthermore, the spiral feeding mechanism includes a feeding barrel, a motor fixedly arranged at the top of the feeding barrel, an auger shaft arranged in the feeding barrel, and an aluminum ash hopper fixed and connected to the input end of the feeding barrel. The top end of the auger shaft passes through the feeding barrel and is connected to the motor.

[0008] Furthermore, the filtering mechanism includes a shell and a shower head arranged in the shell, an infusion pipe for supplying hot water to the shower head and an exhaust pipe connected to the exhaust port, and the output end of the infusion pipe penetrates the outer wall of the shell and extends into the shell to be connected to the input end of the shower head.

[0009] Furthermore, a plurality of filter plates are arranged in sequence from top to bottom at equal intervals in the shell located above the shower head.

[0010] Furthermore, the top of the shell is in an arc shape that bulges upward.

[0011] Furthermore, a one-way valve is provided at the output end of the gas pipeline.

[0012] Furthermore, both the input end of the aluminum ash input port and the input end of the aluminum liquid input port are hingedly provided with a cover plate for sealing.

[0013] The beneficial effects achieved by the utility model are as follows: by means of spiral feeding, the flying of dust generated in the process of aluminum ash entering the ash roasting machine is reduced; at the same time, a filtering mechanism is arranged, and an exhaust gas port equipped with an air pump is arranged on the upper part of the outer wall of the ash roasting machine far away from the spiral feeding mechanism, and the output end of the air pump is connected with the lower part of the left inner wall of the filtering mechanism through an air supply pipe, so that the exhaust gas generated in the process of stirring and separating aluminum liquid and aluminum ash by the ash roasting machine is transported to the filtering mechanism for filtration and then discharged, thereby avoiding the threat to the health of personnel due to inhalation, and also avoiding the influence of a large amount of dust on the quality of produced materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a system for preparing corundum from secondary aluminum ash in an embodiment. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings.

[0016] like Figure 1 As shown, the utility model discloses a system for preparing corundum from secondary aluminum ash, comprising: a spiral feeding mechanism 1 for conveying aluminum ash, a ash roasting machine 2 for stirring and separating aluminum liquid and aluminum ash, a filtering mechanism 3 for filtering harmful gases containing dust, and a sedimentation tank 4 for settling waste liquid generated by filtering, an aluminum ash input port 21 for communicating with the output end of the spiral feeding mechanism 1 is arranged on the upper part of the outer wall of one side of the ash roasting machine 2, and a ash roasting machine 2 is arranged on the outer wall above the aluminum ash input port 21. There is an aluminum liquid input port 22, and an aluminum liquid bucket 221 is connected to the aluminum liquid input port 22. An exhaust port equipped with an air pump 5 is provided on the upper outer wall of the ash roasting machine 2 away from the spiral feeding mechanism 1. The output end of the air pump 5 is connected with the lower part of the left inner wall of the filter mechanism 3 through the air supply pipe 51. The top of the filter mechanism 3 is provided with an exhaust port for exhaust. A discharge port for installing a liquid pump 6 is provided on the lower outer wall of the filter mechanism 3 away from the ash roasting machine 2. The output end of the liquid pump 6 is connected to the top of the inner wall of the sedimentation tank 4 through the discharge pipe 61.

[0017] Further, such as Figure 1 As shown, the spiral feeding mechanism 1 includes a feeding barrel 11, a motor 12 fixedly arranged at the top of the feeding barrel 11, an auger shaft 13 arranged in the feeding barrel 11, and an aluminum ash hopper 14 fixed and connected to the input end of the feeding barrel 11. The top end of the auger shaft 13 penetrates the feeding barrel 11 and is connected to the motor 12 for transmission.

[0018] Further, such as Figure 1As shown, the filtering mechanism 3 includes a shell and a shower head 31 arranged in the shell, a liquid infusion pipe 32 for supplying hot water to the shower head 31 and an exhaust pipe 33 connected to the exhaust port. The output end of the liquid infusion pipe 32 penetrates the outer wall of the shell and extends into the shell to be connected to the input end of the shower head 31.

[0019] Based on the above structure, Figure 1 As shown, when in use, the spiral feeding mechanism 1 conveys the aluminum ash to the ash roasting machine 2 through the aluminum ash input port 21, and the aluminum liquid is poured into the ash roasting machine 2 through the aluminum liquid bucket 221 and the aluminum liquid input port 22 in turn. The ash roasting machine 2 stirs and separates the aluminum liquid and the aluminum ash. During the stirring period, the high temperature generated by the aluminum liquid causes the exhaust gas to rise upward. The vacuum pump 5 extracts the rising exhaust gas from the ash roasting machine 2 and conveys the exhaust gas to the shell through the air delivery pipe 51. The liquid delivery pipe 32 conveys water to the shower head 31 and sprays it out. The hot water absorbs harmful substances and dust in the exhaust gas. At the same time, the water vapor generated by the hot water absorbs the harmful substances and dust in the exhaust gas. The hot water containing the harmful substances and dust falls into the bottom of the inner wall of the shell to form waste liquid. At the same time, the water vapor containing the harmful substances and dust forms a wall hanging in the shell, and is driven by gravity to slide along the inner wall of the shell to the bottom of the inner wall of the shell to form waste liquid. The liquid pump 6 extracts the waste liquid accumulated in the shell and transports it to the sedimentation tank 4 through the drain pipe 61 for precipitation of dust and harmful substances. At the same time, the filtered exhaust gas is discharged through the exhaust pipe 33 connected to the exhaust port.

[0020] Further, such as Figure 1 As shown, in order to further filter harmful substances and dust in the exhaust gas, a plurality of filter plates 34 arranged in sequence from top to bottom are arranged at equal intervals in the shell located above the shower head 31, and the plurality of filter plates 34 further filter the exhaust gas.

[0021] Further, such as Figure 1 As shown, in order to facilitate the discharge of filtered exhaust gas, the top of the shell is an upwardly convex arc shape.

[0022] Further, such as Figure 1 As shown, in order to prevent the waste liquid from flooding the shower head, a liquid level sensor 62 electrically connected to the liquid pump 6 is provided in the middle of the inner wall of the housing.

[0023] Further, such as Figure 1 As shown, in order to prevent the exhaust gas from flowing back and the waste liquid from entering the air pipe 51 and causing scaling in the air pipe 51 , a one-way valve 52 is provided at the output end of the air pipe 51 .

[0024] Further, such as Figure 1As shown, in order to prevent the exhaust gas from being discharged through the aluminum liquid hopper and the aluminum ash hopper during the stirring process of the ash roasting machine, the input end of the aluminum ash input port 21 and the input end of the aluminum liquid input port 22 are both hingedly provided with a cover plate 7 for sealing. During the stirring process of the ash roasting machine, the two cover plates 7 are respectively covered with the input end of the aluminum liquid hopper 221 and the input end of the aluminum ash hopper 14.

[0025] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A system for preparing corundum from secondary aluminum ash, characterized in that: The invention comprises a spiral feeding mechanism (1) for conveying aluminum ash, a stirrer (2) for stirring and separating aluminum liquid and aluminum ash, a filtering mechanism (3) for filtering harmful gases containing dust, and a sedimentation tank (4) for settling waste liquid generated by filtering, wherein an aluminum ash input port (21) for communicating with the output end of the spiral feeding mechanism (1) is provided on the upper part of the outer wall of one side of the stirrer (2), and an aluminum liquid input port (22) is provided on the outer wall of the stirrer (2) above the aluminum ash input port (21), and the aluminum liquid input port (22) is connected to the aluminum liquid input port (21). An aluminum liquid hopper (221) is provided, and an exhaust port on which an air pump (5) is installed is provided at the upper part of the outer wall of the ash roasting machine (2) away from the spiral feeding mechanism (1); the output end of the air pump (5) is connected to the lower part of the left inner wall of the filter mechanism (3) through an air supply pipe (51); an exhaust port for exhaust is provided at the top of the filter mechanism (3); a discharge port for installing a liquid pump (6) is provided at the lower part of the outer wall of the filter mechanism (3) away from the ash roasting machine (2); the output end of the liquid pump (6) is connected to the top of the inner wall of the sedimentation tank (4) through a discharge pipe (61).

2. The system for preparing corundum from secondary aluminum ash according to claim 1, characterized in that: The spiral feeding mechanism (1) comprises a feeding barrel (11), a motor (12) fixedly arranged at the top end of the feeding barrel (11), an auger shaft (13) arranged in the feeding barrel (11), and an aluminum ash hopper (14) fixedly arranged and connected to the input end of the feeding barrel (11); the top end of the auger shaft (13) passes through the feeding barrel (11) and is transmission-connected to the motor (12).

3. The system for preparing corundum from secondary aluminum ash according to claim 1, characterized in that: The filtering mechanism (3) comprises a housing and a shower head (31) arranged in the housing, a liquid infusion pipe (32) for supplying hot water to the shower head (31), and an exhaust pipe (33) connected to an exhaust port, wherein the output end of the liquid infusion pipe (32) penetrates the outer wall of the housing and extends into the housing to be connected to the input end of the shower head (31).

4. The system for preparing corundum from secondary aluminum ash according to claim 3, characterized in that: A plurality of filter plates (34) are arranged in sequence from top to bottom at equal intervals in the housing located above the shower head (31).

5. The system for preparing corundum from secondary aluminum ash according to claim 3, characterized in that: The top of the shell is in an arc shape convex upward.

6. A system for preparing corundum from secondary aluminum ash according to any one of claims 1 to 5, characterized in that: A one-way valve (52) is provided at the output end of the gas delivery pipe (51).

7. A system for preparing corundum from secondary aluminum ash according to any one of claims 1 to 5, characterized in that: The input end of the aluminum ash input port (21) and the input end of the aluminum liquid input port (22) are both hingedly provided with a cover plate (7) for sealing.

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