Electrolytic aluminum production waste recovery device

Abstract

The invention provides an electrolytic aluminum production waste recovery device, and relates to the technical field of metallurgical engineering. A first air pump pumps out air; carbon monoxide is input through a gas metering valve; a heating rod provides a high-temperature effect; the carbon monoxide reacts with iron oxide in the waste blocks to generate iron elementary substances; a third telescopic motor drives a third electric telescopic rod and a push plate to push out waste slag through a discharging port, a conveying belt drives the waste slag to move rightwards, a fifth rotating motor drives a roller to rotate, an electromagnetic coil and a magnetic core are electrified to generate magnetic force, iron powder in the waste slag is adsorbed, and iron in waste is screened out and recycled. The raw material cost in the whole production process is reduced, secondary utilization of waste materials is achieved, the overall cost is reduced, the concept of circular economy is met, waste of the raw materials is reduced, and the cyclic utilization rate of resources is increased to the maximum extent.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical engineering, and in particular to a device for recovering waste from electrolytic aluminum production. Background Art

[0002] In the production of electrolytic aluminum, waste materials are usually some impurities in bauxite, including incompletely electrolyzed bauxite, fluoride, alumina residue, and iron oxide. The iron oxide and other metal oxides in the waste slag of electrolytic aluminum production can be recovered and reused through some methods. For example, iron oxide can react with carbon monoxide. Carbon monoxide can reduce the iron element in iron oxide, release iron from the oxide, and generate iron and carbon dioxide. The iron in the waste is recovered by chemical methods as a by-product with higher added value. This provides an additional source of income for electrolytic aluminum producers and reduces the economic pressure of waste treatment.

[0003] According to the retrieval of China Invention Publication No.: CN116078321 A, a device for recovering waste from electrolytic aluminum production is disclosed. The present invention belongs to the technical field of electrolytic aluminum production equipment, and specifically discloses a device for recovering waste from electrolytic aluminum production. The present invention can effectively control the amount of hydrofluoric acid added by setting a quantitative injection system to avoid waste caused by excessive injection of hydrofluoric acid. The rotating base can cooperate with the mobile pipe fixed on the top of the waste to fully stir the waste.

[0004] However, when implementing the above technical solution, there are the following problems: when the above technical solution is actually used, because iron-containing substances are generated in the electrolytic aluminum production process, especially waste in bauxite, the device cannot extract iron from the electrolytic aluminum production waste, which will lead to an increase in the raw material cost of the entire production process, and the secondary utilization of the waste cannot be achieved, thereby raising the overall cost, causing great waste of raw materials, and failing to reasonably improve the recycling of resources. Summary of the invention

[0005] The purpose of the present invention is to provide an electrolytic aluminum production waste recovery device to solve the problem that the device cannot effectively isolate the device from humid air and is not convenient for detecting batteries of different specifications and models as mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electrolytic aluminum production waste recovery device, comprising a base, a control box is fixedly connected to the left end of the base, a reaction box is installed on the left side of the top of the base, a waste block crushing device is installed on the left side of the top of the reaction box, an air guide device is installed on the right side of the reaction box, heating devices are installed on both sides of the reaction box, a stirring device is installed at the center of the reaction box, a pushing device is installed at the bottom of the reaction box, and an electromagnet screening device is installed inside the base.

[0007] Preferably, the waste block crushing device includes a guide hopper, a crushing box, a first rotating motor, a first rotating rod, a rotating frame, a blade and a feed hopper. The guide hopper is fixedly welded to the left side of the top of the reaction box, a material guide port is opened at the bottom of the guide hopper, a crushing box is welded to the top of the guide hopper, the first rotating motor is screwed to the right end of the crushing box, the first rotating motor is clamped to the left end, the rotating frame is sleeved on the outer side of the first rotating rod, the rotating frame forms a rotating structure with the first rotating motor through the first rotating rod, the outer side of the rotating frame is fixedly connected to the blade, the blade is evenly distributed on the surface of the rotating frame, and the feed hopper is welded to the top of the crushing box.

[0008] Preferably, the air guide device includes a second rotating motor, a second rotating rod, a sealing plate, a first conduit, a first air pump, a gas metering valve, a second conduit, a second air pump, a purifier and an exhaust valve. The second rotating motor is fixedly connected to the left side of the inner top end of the reaction box, the second rotating rod is clamped at the bottom end of the second rotating motor, the sealing plate is fixedly connected to the outer side of the second rotating rod, the sealing plate forms a rotating structure through the second rotating rod and the second rotating motor, the size of the sealing plate matches the size of the material guide port opened at the bottom of the guide hopper, the top of the reaction box is fixedly connected to the first conduit, the first conduit is L-shaped, and the first air pump is fixedly connected to the right side of the first conduit.

[0009] Preferably, the upper side of the right end of the reaction box is connected to the gas metering valve through a pipeline, a connecting pipe is opened at the right end of the gas metering valve, a second conduit is fixedly connected to the center of the right end of the reaction box, the second conduit is L-shaped, the bottom end of the second conduit is fixedly connected to a second air pump, the bottom end of the second air pump is connected to a purifier through a pipeline, the purifier and the reaction box are screwed, and an exhaust valve is fixedly connected to the right side of the purifier.

[0010] Preferably, the heating device includes a temperature controller, a temperature sensor and a heating rod. The temperature controller is screwed to the upper left end of the inner side of the reaction box, and the temperature controller is electrically connected to the control box. The bottom end of the temperature controller is electrically connected to the temperature sensor. Heating rods are fixedly connected to both sides of the interior of the reaction box, and the heating rods are electrically connected to the temperature controller.

[0011] Preferably, the stirring device comprises a first telescopic motor, a first electric telescopic rod, a fixing frame, a third rotating motor, a third rotating rod, a first sliding block, a fourth rotating motor, a fourth rotating rod, a stirring paddle, a second sliding block and a sliding rod, the first telescopic motor is screwed to the right side of the inner top of the reaction box, the first electric telescopic rod is threadedly connected to the bottom end of the first electric telescopic rod, a fixing frame is welded to the bottom end of the first electric telescopic rod, the third rotating motor is screwed to the right end of the inner side of the fixing frame, the third rotating motor is rotatably connected to the third rotating rod at the left end, and the outer side of the third rotating rod A first sliding block is threadedly connected, and threads are provided on the outer surface of the third rotating rod and the inner surface of the first sliding block. A fourth rotating motor is fixedly connected to the rear end of the first sliding block, and a fourth rotating rod is clamped on the rear end of the fourth rotating motor. A stirring paddle is sleeved on the outer side of the fourth rotating rod, and a rotating structure is formed between the fourth rotating rod and the fourth rotating motor. A second sliding block is fixedly connected to the rear end of the fourth rotating rod, and a sliding rod is sleeved on the inner side of the second sliding block. The sliding rod and the fixed frame are welded, and a sliding structure is formed between the second sliding block and the sliding rod.

[0012] Preferably, the pushing device includes a discharge port, a second telescopic motor, a second electric telescopic rod, a connecting piece, a material blocking plate, a mounting frame, a third telescopic motor, a third electric telescopic rod and a push plate. A discharge port is opened on the right side of the inner bottom end of the reaction box, the second telescopic motor is screwed to the left side of the bottom end of the reaction box, the second electric telescopic rod is threadedly connected to the right side of the second telescopic motor, a connecting piece is welded to the right end of the second electric telescopic rod, a material blocking plate is welded to the top of the connecting piece, the size of the material blocking plate is larger than the size of the discharge port, a mounting frame is welded to the left end of the reaction box, the third telescopic motor is screwed to the left end of the inner side of the mounting frame, the third telescopic motor is threadedly connected to the third electric telescopic rod at the right end of the third telescopic motor, the push plate is fixedly connected to the right end of the third electric telescopic rod, and the push plate forms a telescopic structure through the third electric telescopic rod and the third telescopic motor.

[0013] Preferably, the electromagnet screening device includes a conveyor belt, a fifth rotating motor, a fifth rotating rod, a magnetic core, an electromagnetic coil and a roller, the inner rear end of the base is fixedly connected to the conveyor belt, the inner right rear end of the base is screwed to the fifth rotating motor, the front end of the fifth rotating motor is clamped with the fifth rotating rod, the outer side of the fifth rotating rod is sleeved with a magnetic core, the outer side of the magnetic core is movably connected with the electromagnetic coil, the outer side of the magnetic core is sleeved with a roller, the roller and the fifth rotating rod are fixedly connected, and the roller forms a rotating structure with the fifth rotating motor through the fifth rotating rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: through the setting of the waste block crushing device, the first rotating motor drives the first rotating rod and the rotating frame to rotate, and the blades on the surfaces of the two sets of rotating frames are staggered to crush the waste blocks. Through the setting of the air guide device and the heating device, the first air pump extracts the air inside the reaction box, and inputs the carbon monoxide into the reaction box through the gas metering valve. The temperature controller controls the heating rod to provide a high temperature effect when the carbon monoxide reacts chemically with the iron oxide in the waste block. The carbon monoxide reacts chemically with the iron oxide in the waste block inside the reaction box to produce iron element and carbon dioxide. The second air pump and the purifier discharge the waste gas through the exhaust valve after treatment. Through the setting of the stirring device, the first electric telescopic rod drives the fixed frame to adjust the up and down position of the stirring paddle. The third rotating motor drives the third rotating The rod rotates forward and reverse, the inner thread of the first sliding block engages with the outer thread of the third rotating rod to adjust the position left and right, the fourth rotating rod drives the stirring paddle to stir the accumulated waste slag, promotes the contact between the waste slag and carbon monoxide, and the third telescopic motor drives the third electric telescopic rod and the push plate to push the waste slag out of the reaction box through the discharge port through the pushing device and the electromagnet screening device. The conveyor belt drives the waste slag to move to the right, and the fifth rotating motor drives the drum to rotate. The electromagnetic coil and the magnetic core are energized to generate magnetic force, which adsorbs the iron powder in the waste slag on the surface of the drum, and the iron in the waste is screened out for recycling, which reduces the raw material cost in the entire production process, realizes the secondary utilization of waste, reduces the overall cost, conforms to the concept of circular economy, helps to reduce the waste of raw materials, and maximizes the recycling rate of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the internal structure of the crushing box of the present invention;

[0017] Figure 3 It is a schematic diagram of the overall internal right side structure of the present invention;

[0018] Figure 4 For the present invention Figure 4 A is an enlarged structural diagram;

[0019] Figure 5 It is a schematic diagram of the overall internal left side structure of the present invention;

[0020] Figure 6 It is a schematic diagram of the inner structure of the fixing frame of the present invention;

[0021] Figure 7 It is a schematic diagram of the structure of the push plate and the third electric telescopic rod cooperating with each other in the present invention;

[0022] Figure 8 It is a schematic diagram of the bottom structure of the reaction box of the present invention;

[0023] Fig. 9 It is a schematic diagram of the structure of the roller and the magnetic core cooperating with each other in the present invention;

[0024] Fig.10 It is a schematic diagram of the structure in which the roller and the fifth rotating rod cooperate with each other in the present invention.

[0025] In the figure: 1, base; 2, control box; 3, reaction box; 4, waste block crushing device; 401, guide hopper; 402, crushing box; 403, first rotating motor; 404, first rotating rod; 405, rotating frame; 406, blade; 407, feeding hopper; 5, air guide device; 501, second rotating motor; 502, second rotating rod; 503, sealing plate; 504, first conduit; 505, first air pump; 506, gas metering valve; 507, second conduit; 508, second air pump; 509, purifier; 510, exhaust valve; 6, heating device; 601, temperature controller; 602, temperature sensor; 603, heating rod; 7, stirring device; 701, first telescopic motor; 702, first An electric telescopic rod; 703, a fixed frame; 704, a third rotating motor; 705, a third rotating rod; 706, a first sliding block; 707, a fourth rotating motor; 708, a fourth rotating rod; 709, a stirring paddle; 710, a second sliding block; 711, a sliding rod; 8, a pushing device; 801, a discharge port; 802, a second telescopic motor; 803, a second electric telescopic rod; 804, a connecting piece; 805, a blocking plate; 806, a mounting frame; 807, a third telescopic motor; 808, a third electric telescopic rod; 809, a pushing plate; 9, an electromagnet screening device; 901, a conveyor belt; 902, a fifth rotating motor; 903, a fifth rotating rod; 904, a magnetic core; 905, an electromagnetic coil; 906, a roller. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-10 The present invention provides a technical solution: a device for recycling waste from electrolytic aluminum production, comprising a base 1, a control box 2 is fixedly connected to the left end of the base 1, a reaction box 3 is installed on the left side of the top of the base 1, a waste block crushing device 4 is installed on the left side of the top of the reaction box 3, an air guide device 5 is installed on the right side of the reaction box 3, heating devices 6 are installed on both sides of the reaction box 3, a stirring device 7 is installed at the center of the reaction box 3, a pushing device 8 is installed at the bottom end of the reaction box 3, and an electromagnet screening device 9 is installed inside the base 1.

[0028] Furthermore, the waste block crushing device 4 includes a guide hopper 401, a crushing box 402, a first rotating motor 403, a first rotating rod 404, a rotating frame 405, a blade 406 and a feed hopper 407. The guide hopper 401 is fixedly welded to the left side of the top of the reaction box 3, a guide port is provided at the bottom of the guide hopper 401, a crushing box 402 is welded to the top of the guide hopper 401, the first rotating motor 403 is screwed to the right end of the crushing box 402, the first rotating motor 403 is clamped to the left end of the first rotating rod 404, and the rotating frame 405 is sleeved on the outer side of the first rotating rod 404. The rotating frame 405 is rotated by the first rotating rod 404. A rotating structure is formed between the rod 404 and the first rotating motor 403, and a blade 406 is fixedly connected to the outer side of the rotating frame 405. The blades 406 are evenly distributed on the surface of the rotating frame 405. A hopper 407 is welded on the top of the crushing box 402. The waste blocks after the electrolytic aluminum production are put into the hopper 407. The first rotating motor 403 drives the first rotating rod 404 and the rotating frame 405 to rotate. The two groups of blades 406 on the surface of the rotating frame 405 move alternately to crush and decompose the fallen waste blocks. The waste slag enters the interior of the reaction box 3 through the guide port at the bottom of the guide hopper 401. The waste slag contains a large amount of iron oxide.

[0029] Further, the gas guide device 5 includes a second rotating motor 501, a second rotating rod 502, a sealing plate 503, a first conduit 504, a first air pump 505, a gas metering valve 506, a second conduit 507, a second air pump 508, a purifier 509 and an exhaust valve 510. The second rotating motor 501 is fixedly connected to the left side of the top of the reaction box 3, the second rotating rod 502 is clamped at the bottom end of the second rotating motor 501, and the sealing plate 503 is fixedly connected to the outer side of the second rotating rod 502. The sealing plate 503 forms a rotating structure through the second rotating rod 502 and the second rotating motor 501. The size of the sealing plate 503 matches the size of the material guide port opened at the bottom of the material guide hopper 401. The top of the reaction box 3 is fixedly connected to a first conduit 504, and the first conduit 504 is L-shaped. The right side of the first conduit 504 is fixedly connected to a first air pump 505. When the waste slag enters the reaction box 3, the second rotating motor 501 drives the second rotating rod 502 and the sealing plate 503 to rotate, and the sealing plate 503 blocks the material guide port at the bottom of the material guide hopper 401 to prevent gas from entering and exiting. A closed space is formed inside the reaction box 3, and the first air pump 505 extracts the air inside the reaction box 3 through the first conduit 504.

[0030] Further, the upper right side of the reaction box 3 is connected to the gas metering valve 506 through a pipeline, the right end of the gas metering valve 506 is provided with a connecting pipe, the center of the right end of the reaction box 3 is fixedly connected to a second conduit 507, the second conduit 507 is L-shaped, the bottom end of the second conduit 507 is fixedly connected to a second air pump 508, the bottom end of the second air pump 508 is connected to a purifier 509 through a pipeline, the purifier 509 and the reaction box 3 are screwed, the right side of the purifier 509 is fixedly connected to an exhaust valve 510, the gas delivery pipe is connected to the gas metering valve 506, and the gas metering valve 506 is connected to the gas metering valve 506. The connecting pipe at the right end of the metering valve 506 is connected to the reaction box 3 through the gas metering valve 506. The gas metering valve 506 calculates the input amount of carbon monoxide. The carbon monoxide reacts chemically with the iron oxide in the waste block inside the reaction box 3 to produce iron element and carbon dioxide. After a certain reaction time, the second air pump 508 extracts the carbon dioxide and carbon monoxide inside the reaction box 3 through the second conduit 507 and introduces them into the purifier 509. The purifier 509 filters the exhaust gas and discharges it through the exhaust valve 510.

[0031] Furthermore, the heating device 6 includes a temperature controller 601, a temperature sensor 602 and a heating rod 603. The temperature controller 601 is screwed to the upper left end of the inner side of the reaction box 3, and the temperature controller 601 is electrically connected to the control box 2. The bottom of the temperature controller 601 is electrically connected to the temperature sensor 602. The heating rods 603 are fixedly connected to the two sides of the interior of the reaction box 3, and the heating rods 603 are electrically connected to the temperature controller 601. The temperature controller 601 controls the heating rods 603 to provide a high temperature effect when carbon monoxide reacts chemically with iron oxide in the waste block, thereby promoting the reaction of carbon monoxide and iron oxide. At the same time, the temperature sensor 602 measures the internal temperature of the reaction box 3 to prevent the temperature from being too high or too low.

[0032] Further, the stirring device 7 includes a first telescopic motor 701, a first electric telescopic rod 702, a fixing frame 703, a third rotating motor 704, a third rotating rod 705, a first sliding block 706, a fourth rotating motor 707, a fourth rotating rod 708, a stirring paddle 709, a second sliding block 710 and a sliding rod 711. The first telescopic motor 701 is screwed to the right side of the top of the reaction box 3, and the first telescopic motor 701 is screwed to the bottom end of the first telescopic motor 701. The first electric telescopic rod 702 is screwed to the bottom end of the first telescopic motor 701. A fixing frame 703 is welded to the bottom end, a third rotating motor 704 is screwed to the inner right end of the fixing frame 703, a third rotating rod 705 is rotatably connected to the left end of the third rotating motor 704, a first sliding block 706 is threadedly connected to the outer side of the third rotating rod 705, a thread is provided on the outer surface of the third rotating rod 705 and the inner surface of the first sliding block 706, a fourth rotating motor 707 is fixedly connected to the rear end of the first sliding block 706, a fourth rotating rod 708 is clamped to the rear end of the fourth rotating motor 707, The outer side of the fourth rotating rod 708 is sleeved with a stirring paddle 709, and the stirring paddle 709 forms a rotating structure through the fourth rotating rod 708 and the fourth rotating motor 707. The rear end of the fourth rotating rod 708 is fixedly connected to the second sliding block 710, and the inner side of the second sliding block 710 is sleeved with a sliding rod 711. The sliding rod 711 and the fixed frame 703 are welded, and the second sliding block 710 and the sliding rod 711 form a sliding structure. The first telescopic motor 701 drives the first electric telescopic rod 702 and the fixed frame 703 to move downward. The third rotating motor 704 drives the third rotating rod 705 to rotate forward and reverse, the inner thread of the first sliding block 706 engages with the outer thread of the third rotating rod 705 to make the first sliding block 706 move left and right, the second sliding block 710 follows the first sliding block 706 to slide left and right through the connection with the fourth rotating rod 708, and at the same time provides support for the first sliding block 706, the fourth rotating motor 707 drives the fourth rotating rod 708 and the stirring paddle 709 to stir the accumulated waste slag, thereby promoting the contact between the waste slag and carbon monoxide.

[0033] Furthermore, the pushing device 8 includes a discharge port 801, a second telescopic motor 802, a second electric telescopic rod 803, a connecting piece 804, a material blocking plate 805, a mounting frame 806, a third telescopic motor 807, a third electric telescopic rod 808 and a pushing plate 809. A discharge port 801 is provided on the right side of the bottom end of the reaction box 3, the second telescopic motor 802 is screwed to the left side of the bottom end of the reaction box 3, the second electric telescopic rod 803 is threadedly connected to the right side of the second telescopic motor 802, a connecting piece 804 is welded to the right end of the second electric telescopic rod 803, a material blocking plate 805 is welded to the top of the connecting piece 804, the size of the material blocking plate 805 is larger than the size of the discharge port 801, and the reaction box 3 is A mounting frame 806 is welded to the left end, and the inner left end of the mounting frame 806 is screwed to the third telescopic motor 807, the right end of the third telescopic motor 807 is threadedly connected to the third electric telescopic rod 808, and the right end of the third electric telescopic rod 808 is fixedly connected to a push plate 809, and the push plate 809 forms a telescopic structure through the third electric telescopic rod 808 and the third telescopic motor 807. When the reaction of the waste slag inside the reaction box 3 is completed, the second telescopic motor 802 drives the second electric telescopic rod 803, the connecting piece 804 and the material blocking plate 805 to move to the left, and the third telescopic motor 807 drives the third electric telescopic rod 808 and the push plate 809 to push the waste slag out of the reaction box 3 through the discharge port 801.

[0034] Furthermore, the electromagnet screening device 9 includes a conveyor belt 901, a fifth rotating motor 902, a fifth rotating rod 903, a magnetic core 904, an electromagnetic coil 905 and a roller 906. The inner rear end of the base 1 is fixedly connected with the conveyor belt 901, the inner right rear end of the base 1 is screwed with the fifth rotating motor 902, the front end of the fifth rotating motor 902 is clamped with the fifth rotating rod 903, the outer side of the fifth rotating rod 903 is sleeved with the magnetic core 904, the outer side of the magnetic core 904 is movably connected with the electromagnetic coil 905, and the magnetic core 904 A roller 906 is sleeved on the outer side, and the roller 906 is fixedly connected to the fifth rotating rod 903. The roller 906 forms a rotating structure through the fifth rotating rod 903 and the fifth rotating motor 902. After the waste slag falls on the conveyor belt 901, the conveyor belt 901 drives the waste slag to move right, and the fifth rotating motor 902 drives the roller 906 to rotate. After the electromagnetic coil 905 and the magnetic core 904 are energized, magnetic force is generated to adsorb the iron powder in the waste slag on the surface of the roller 906, and the remaining waste slag is sent out of the base 1 along the conveyor belt 901.

[0035] Working principle:

[0036] S1. Install the device at the desired location, then turn on the power supply, put the waste blocks after electrolytic aluminum production into the hopper 407, the first rotating motor 403 drives the first rotating rod 404 and the rotating frame 405 to rotate, the blades 406 on the surfaces of the two sets of rotating frames 405 move alternately to decompose the fallen waste blocks, and the waste slag enters the interior of the reaction box 3 through the guide port at the bottom of the guide hopper 401, the second rotating motor 501 drives the second rotating rod 502 and the sealing plate 503 to rotate, and the sealing plate 503 blocks the guide port at the bottom of the guide hopper 401;

[0037] S2, the first air pump 505 extracts the air inside the reaction box 3 through the first conduit 504, and inputs the carbon monoxide into the reaction box 3 through the gas metering valve 506, the gas metering valve 506 calculates the input amount, the temperature controller 601 controls the heating rod 603 to provide a high temperature effect when the carbon monoxide reacts chemically with the iron oxide in the waste block, and the temperature sensor 602 measures the temperature inside the reaction box 3, the first telescopic motor 701 drives the first electric telescopic rod 702 and the fixed frame 703 to move downward, the third rotary motor 704 drives the third rotary rod 705 to rotate forward and reverse, the inner thread of the first sliding block 706 and the outer thread of the third rotary rod 705 engage to make the first sliding block 706 move left and right, the second sliding block 710 follows the first sliding block 706 to slide left and right through the connection of the fourth rotary rod 708, the fourth rotary motor 707 drives the fourth rotary rod 708 and the stirring paddle 709 to stir the accumulated waste slag, the carbon monoxide reacts chemically with the iron oxide in the waste block inside the reaction box 3 to produce iron element and carbon dioxide;

[0038] S3. After the reaction is completed, the second air pump 508 extracts the carbon dioxide and carbon monoxide inside the reaction box 3 through the second conduit 507 and introduces them into the purifier 509. The purifier 509 filters and treats the waste gas and discharges it through the exhaust valve 510. The second telescopic motor 802 drives the second electric telescopic rod 803, the connecting piece 804 and the material blocking plate 805 to move to the left. The third telescopic motor 807 drives the third electric telescopic rod 808 and the push plate 809 to move to the right. The push plate 809 pushes the waste slag out through the discharge port 801.

[0039] S4, the waste slag falls on the conveyor belt 901, and the conveyor belt 901 drives the waste slag base 1 to move to the right side, and the fifth rotating motor 902 drives the roller 906 to rotate. After the electromagnetic coil 905 and the magnetic core 904 are energized, magnetic force is generated, and the roller 906 generates magnetic force at the same time, and the iron-containing waste slag on the conveyor belt 901 is adsorbed on the surface of the roller 906, and the remaining iron-free waste slag is sent out of the base 1 along with the conveyor belt 901. When a certain amount of iron waste slag is accumulated on the surface of the roller 906, the control box 2 controls the electromagnetic coil 905 and the magnetic core 904 to be powered off, and the roller 906 no longer generates magnetic force. The iron waste slag falls on the conveyor belt 901 and is sent out of the inside of the base 1;

[0040] 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. A device for recycling waste from electrolytic aluminum production, comprising a base (1), characterized in that: The left end of the base (1) is fixedly connected to a control box (2); a reaction box (3) is installed on the left side of the top of the base (1); a waste block crushing device (4) is installed on the left side of the top of the reaction box (3); an air guide device (5) is installed on the right side of the reaction box (3); heating devices (6) are installed on both sides of the reaction box (3); a stirring device (7) is installed at the center of the reaction box (3); a pushing device (8) is installed at the bottom of the reaction box (3); and an electromagnet screening device (9) is installed inside the base (1).

2. The electrolytic aluminum production waste recovery device according to claim 1 is characterized in that: The waste block crushing device (4) comprises a guide hopper (401), a crushing box (402), a first rotating motor (403), a first rotating rod (404), a rotating frame (405), a blade (406) and a feed hopper (407). The guide hopper (401) is fixedly welded to the left side of the top of the reaction box (3), a guide port is provided at the bottom of the guide hopper (401), a crushing box (402) is welded to the top of the guide hopper (401), and the first rotating motor (403) is screwed to the right end of the crushing box (402). 403), the left end of the first rotating motor (403) is clamped with a first rotating rod (404), the outer side of the first rotating rod (404) is sleeved with a rotating frame (405), the rotating frame (405) forms a rotating structure through the first rotating rod (404) and the first rotating motor (403), the outer side of the rotating frame (405) is fixedly connected with a blade (406), the blade (406) is evenly distributed on the surface of the rotating frame (405), and the top of the crushing box (402) is welded with a hopper (407).

3. The electrolytic aluminum production waste recovery device according to claim 1 is characterized in that: The gas guide device (5) comprises a second rotating motor (501), a second rotating rod (502), a sealing plate (503), a first conduit (504), a first air pump (505), a gas metering valve (506), a second conduit (507), a second air pump (508), a purifier (509) and an exhaust valve (510). The left side of the top inner portion of the reaction box (3) is fixedly connected to the second rotating motor (501), the bottom end of the second rotating motor (501) is clamped with the second rotating rod (502), and the A sealing plate (503) is fixedly connected to the outer side of the second rotating rod (502), and the sealing plate (503) forms a rotating structure through the second rotating rod (502) and the second rotating motor (501). The size of the sealing plate (503) matches the size of the material guide port opened at the bottom of the material guide hopper (401). The top of the reaction box (3) is fixedly connected to a first conduit (504), and the first conduit (504) is L-shaped. The right side of the first conduit (504) is fixedly connected to a first air pump (505).

4. The electrolytic aluminum production waste recovery device according to claim 3 is characterized in that: The upper side of the right end of the reaction box (3) is connected to the gas metering valve (506) through a pipeline, and a connecting pipe is provided at the right end of the gas metering valve (506). A second conduit (507) is fixedly connected to the center of the right end of the reaction box (3), and the second conduit (507) is L-shaped. The bottom end of the second conduit (507) is fixedly connected to a second air pump (508), and the bottom end of the second air pump (508) is connected to a purifier (509) through a pipeline. The purifier (509) and the reaction box (3) are screwed, and an exhaust valve (510) is fixedly connected to the right side of the purifier (509).

5. The electrolytic aluminum production waste recovery device according to claim 1, characterized in that: The heating device (6) comprises a temperature controller (601), a temperature sensor (602) and a heating rod (603); the temperature controller (601) is screwed to the upper left end of the inner side of the reaction box (3); the temperature controller (601) is electrically connected to the control box (2); the bottom end of the temperature controller (601) is electrically connected to the temperature sensor (602); the heating rods (603) are fixedly connected to the inner sides of the reaction box (3); the heating rods (603) are electrically connected to the temperature controller (601).

6. The electrolytic aluminum production waste recovery device according to claim 1, characterized in that: The stirring device (7) comprises a first telescopic motor (701), a first electric telescopic rod (702), a fixing frame (703), a third rotating motor (704), a third rotating rod (705), a first sliding block (706), a fourth rotating motor (707), a fourth rotating rod (708), a stirring paddle (709), a second sliding block (710) and a sliding rod (711); the first telescopic motor (701) is screwed to the right side of the top of the reaction box (3); the first electric telescopic rod (702) is screwed to the bottom end of the first telescopic motor (701); the fixing frame (703) is welded to the bottom end of the first electric telescopic rod (702); the third rotating motor (704) is screwed to the right side of the inner side of the fixing frame (703); the third rotating motor (704) is rotatably connected to the left end of the third rotating motor (704); the third rotating rod (705) The outer side of the third rotating rod (705) is connected to a first sliding block (706) by a thread, the outer side surface of the third rotating rod (705) and the inner side surface of the first sliding block (706) are both provided with threads, the rear end of the first sliding block (706) is fixedly connected to a fourth rotating motor (707), the rear end of the fourth rotating motor (707) is clamped with a fourth rotating rod (708), the outer side of the fourth rotating rod (708) is sleeved with a stirring paddle (709), the stirring paddle (709) forms a rotating structure through the fourth rotating rod (708) and the fourth rotating motor (707), the rear end of the fourth rotating rod (708) is fixedly connected to a second sliding block (710), the inner side of the second sliding block (710) is sleeved with a sliding rod (711), the sliding rod (711) and the fixed frame (703) are welded, and the second sliding block (710) and the sliding rod (711) form a sliding structure.

7. The electrolytic aluminum production waste recovery device according to claim 1, characterized in that: The pushing device (8) comprises a discharge port (801), a second telescopic motor (802), a second electric telescopic rod (803), a connecting piece (804), a material blocking plate (805), a mounting frame (806), a third telescopic motor (807), a third electric telescopic rod (808) and a pushing plate (809); a discharge port (801) is provided on the right side of the inner bottom end of the reaction box (3); the second telescopic motor (802) is screwed to the left side of the bottom end of the reaction box (3); the second electric telescopic rod (803) is threadedly connected to the right side of the second telescopic motor (802); the right end of the second electric telescopic rod (803) is welded with a connecting piece ( 804), a material blocking plate (805) is welded to the top of the connecting piece (804), the size of the material blocking plate (805) is larger than the size of the discharge port (801), a mounting frame (806) is welded to the left end of the reaction box (3), the inner left end of the mounting frame (806) is screwed to the third telescopic motor (807), the right end of the third telescopic motor (807) is threadedly connected to the third electric telescopic rod (808), the right end of the third electric telescopic rod (808) is fixedly connected to a push plate (809), and the push plate (809) forms a telescopic structure through the third electric telescopic rod (808) and the third telescopic motor (807).

8. The electrolytic aluminum production waste recovery device according to claim 1, characterized in that: The electromagnet screening device (9) comprises a conveyor belt (901), a fifth rotating motor (902), a fifth rotating rod (903), a magnetic core (904), an electromagnetic coil (905) and a roller (906); the inner rear end of the base (1) is fixedly connected with the conveyor belt (901); the inner right rear end of the base (1) is screwed with the fifth rotating motor (902); the front end of the fifth rotating motor (902) is clamped with the fifth rotating rod (903); the outer side of the fifth rotating rod (903) is sleeved with the magnetic core (904); the outer side of the magnetic core (904) is movably connected with the electromagnetic coil (905); the outer side of the magnetic core (904) is sleeved with the roller (906); the roller (906) and the fifth rotating rod (903) are fixedly connected; the roller (906) forms a rotating structure through the fifth rotating rod (903) and the fifth rotating motor (902).

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