Molten aluminum iron removal device

Abstract

The utility model discloses a molten aluminum iron removal device, which belongs to the field of aluminum strip production, and comprises a bottom plate, the top of the bottom plate is fixedly connected with a front box of a casting and rolling machine, the top of the bottom plate is fixedly connected with a rack, an iron removal mechanism is arranged on the rack, the iron removal mechanism comprises a mounting block, a high-temperature-resistant electromagnet is arranged at the bottom of the mounting block, and the iron removal mechanism further comprises an adjusting assembly. The high-temperature-resistant electromagnet is rotationally connected to the bottom of the mounting block through a mounting shaft, a torsional spring is arranged between the mounting shaft and the mounting block, and a driving mechanism is arranged at the top of the mounting block. The device has the beneficial effects that after the high-temperature-resistant electromagnet moves upwards to a certain height, the driving mechanism drives the mounting shaft to drive the high-temperature-resistant electromagnet to rotate, the torsional spring accumulates force, after the high-temperature-resistant electromagnet is separated from the molten aluminum level, the mounting shaft loses power drive and rapidly rotates reversely under the action of the torsional spring, redundant molten aluminum is thrown into a front box of the casting and rolling machine, and the casting and rolling efficiency is improved. And the possibility that molten aluminum drips in the moving process of the high-temperature-resistant electromagnet is reduced.

Description

Technical Field

[0001] This utility model relates to the field of aluminum strip production, and in particular to an iron removal device for molten aluminum. Background Technology

[0002] The raw material for aluminum strip is pure aluminum or aluminum alloy cast-rolled aluminum coils and hot-rolled aluminum coils. These are rolled into thin aluminum coils of different thicknesses and widths by a cold rolling mill. Then, depending on the application, they are longitudinally cut into aluminum strips of different widths by a slitting machine. The aluminum strip is formed by a casting and rolling mill, which is equipped with a front box to buffer the molten aluminum. Part of the raw material for the molten aluminum comes from scrap aluminum, which contains ferromagnetic impurities. If these impurities are not removed, they will affect the quality of the aluminum strip and lead to substandard products. Currently, the commonly used method is to use magnetic adsorption to remove iron.

[0003] A search of Chinese Patent Publication No. CN218015661U reveals an aluminum molten metal removal device for the front box of an aluminum strip casting and rolling mill. This patent employs two high-temperature resistant electromagnets for iron removal that move left and right. During the removal of iron from the molten aluminum, a second drive motor is activated to rotate the screw, which in turn moves the slide block threaded to the screw. This positions one of the high-temperature resistant electromagnets for iron removal directly above the front box of the casting and rolling mill. Then, the hydraulic rod retracts, causing the top frame and one of the high-temperature resistant electromagnets for iron removal to move downwards. One of the electromagnets enters the front box of the casting and rolling mill and comes into contact with the molten aluminum. It magnetically attracts iron from the molten aluminum. After a period of attraction, the hydraulic rod extends, and the second drive motor drives the screw to rotate in the opposite direction. This resets one of the high-temperature resistant electromagnets for iron removal and simultaneously positions the other electromagnet directly above the front box of the casting and rolling mill. Subsequently, the hydraulic rod retracts again, causing the other electromagnet for iron removal to enter the molten aluminum and continue attracting and removing iron, thus completing continuous iron removal and improving the efficiency of iron removal from the molten aluminum.

[0004] However, the temperature of molten aluminum is high. After removing the iron, some molten aluminum will be trapped between the iron filings and on the outer wall of the high-temperature electromagnet. If the high-temperature electromagnet is moved directly, the molten aluminum may drip onto the outside of the front box of the casting and rolling mill, which will not only cause waste, but may also burn the workers around it. Utility Model Content

[0005] The purpose of this invention is to provide an aluminum liquid iron removal device to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] An iron removal device for molten aluminum includes a base plate, a casting and rolling mill front box fixedly connected to the top of the base plate, a frame fixedly connected to the top of the base plate, an iron removal mechanism mounted on the frame, the iron removal mechanism including a mounting block, a high-temperature resistant electromagnet mounted at the bottom of the mounting block, and an adjustment component for adjusting the position and height of the high-temperature resistant electromagnet. The high-temperature resistant electromagnet is rotatably connected to the bottom of the mounting block via a mounting shaft, a torsion spring is provided between the mounting shaft and the mounting block, and a drive mechanism is provided at the top of the mounting block. The drive mechanism includes a rotating shaft rotatably connected to the top of the mounting block, and a power component for driving the rotating shaft to rotate within a certain height. A linkage component is provided between the rotating shaft and the mounting shaft.

[0008] Preferably, the power assembly includes a rack fixedly connected to the side wall of the frame, two vertical plates fixedly connected to the top of the mounting block, a rotating shaft rotatably connected between the two vertical plates, a transmission gear fixedly connected to the rotating shaft, the transmission gear meshing with the rack, a driving bevel gear extending out of the vertical plates at the rear end of the rotating shaft and fixedly connected to the driving bevel gear, and a driven bevel gear fixedly connected to the rotating shaft, the driven bevel gear meshing with the driving bevel gear.

[0009] Preferably, the linkage component includes a timing belt, and the mounting block has a mounting groove. Both the mounting shaft and the rotating shaft extend into the mounting groove. The timing belt is connected to the mounting shaft and the rotating shaft through a pulley, and the timing belt is located in the mounting groove.

[0010] Preferably, the adjustment assembly includes a rotary motor fixedly connected to one side of the frame, the output end of the rotary motor being connected to a lead screw via a coupling, the lead screw being rotatably connected to the inner wall of the frame, a slider being threaded onto the lead screw, the slider being slidably connected to the frame, an electric push rod being fixedly connected to the bottom of the slider, and a mounting block being fixedly connected to the bottom of the electric push rod.

[0011] Preferably, a collection box is fixedly connected to the top of the base plate, and the collection box is located on one side of the front box of the casting and rolling mill.

[0012] Preferably, the frame is U-shaped with the opening facing downwards.

[0013] The beneficial effects are as follows: after the high-temperature electromagnet moves upward to a certain height, the drive mechanism drives the mounting shaft to rotate the high-temperature electromagnet. The torsion spring stores energy. When the high-temperature electromagnet separates from the aluminum liquid surface, the mounting shaft loses its power drive and quickly reverses under the action of the torsion spring, throwing the excess aluminum liquid into the front box of the casting and rolling mill, reducing the possibility of aluminum liquid dripping during the movement of the high-temperature electromagnet.

[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the aluminum liquid iron removal device described in this utility model;

[0017] Figure 2 This is a front view of the aluminum liquid iron removal device described in this utility model;

[0018] Figure 3 This is a top view of the aluminum liquid iron removal device described in this utility model;

[0019] Figure 4 This is a right view of the mounting block of the aluminum liquid iron removal device described in this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the mounting shaft of the aluminum liquid iron removal device described in this utility model.

[0021] The reference numerals in the attached drawings are explained as follows: 1. Base plate; 2. Front box of the casting and rolling mill; 3. Frame; 401. Rotary motor; 402. Lead screw; 403. Slider; 404. Electric push rod; 405. Mounting block; 406. Mounting shaft; 407. High-temperature resistant electromagnet; 501. Rack; 502. Vertical plate; 503. Rotating shaft; 504. Transmission gear; 505. Rotating shaft; 506. Driving bevel gear; 507. Driven bevel gear; 508. Synchronous belt; 6. Collection box. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figures 1-5As shown, an aluminum liquid iron removal device includes a base plate 1, a casting and rolling mill front box 2 fixedly connected to the top of the base plate 1, a collection box 6 fixedly connected to the top of the base plate 1, the collection box 6 being located on one side of the casting and rolling mill front box 2, and a frame 3 bolted to the top of the base plate 1, the frame 3 being a U-shape with the opening facing downwards.

[0026] The frame 3 is equipped with an iron removal mechanism, which includes a mounting block 405. The mounting block 405 has a mounting groove, and a high-temperature resistant electromagnet 407 is installed at the bottom of the mounting block 405. The high-temperature resistant electromagnet 407 is rotatably connected to the bottom of the mounting block 405 via a mounting shaft 406. A torsion spring is installed between the mounting shaft 406 and the mounting block 405. The energizing structure of the high-temperature resistant electromagnet 407 is the same as that of the rotating conductive ring, that is, a conductive slip ring is fixedly connected to the mounting shaft 406, and a brush is fixedly connected to the inner top wall of the mounting groove. The brush is connected to the power supply. When the mounting shaft 406 rotates, the conductive slip ring fixed on the mounting shaft 406 will rotate with the mounting shaft 406. When the conductive slip ring rotates, it will be connected to the brush, thereby realizing the energization of the conductive slip ring. The conductive slip ring and the high-temperature resistant electromagnet 407 are connected by a wire. The energization of the conductive slip ring will energize the high-temperature resistant electromagnet 407.

[0027] The iron removal mechanism also includes an adjustment assembly for adjusting the position and height of the high-temperature resistant electromagnet 407. The adjustment assembly includes a rotary motor 401 bolted to one side of the frame 3. The output end of the rotary motor 401 is connected to a lead screw 402 via a coupling. The lead screw 402 is rotatably connected to the inner wall of the frame 3. A slider 403 is threaded onto the lead screw 402. The slider 403 is slidably connected to the frame 3. An electric push rod 404 is fixedly connected to the bottom of the slider 403. A mounting block 405 is fixedly connected to the bottom of the electric push rod 404. When the rotary motor 401 is started, the rotary motor 401 drives the lead screw 402 to rotate, and the lead screw 402 drives the slider 403 to move.

[0028] A drive mechanism is provided on the top of the mounting block 405. The drive mechanism includes a rotating shaft 505 rotatably connected to the top of the mounting block 405, and a power component. The power component includes a rack 501 fixedly connected to the side wall of the frame 3. Two vertical plates 502 are bolted to the top of the mounting block 405, and a rotating shaft 503 is rotatably connected between the two vertical plates 502. A transmission gear 504 is fixedly connected to the rotating shaft 503. The transmission gear 504 meshes with the rack 501. The position of the rack 501 is determined by the length of the high-temperature electromagnet 407 and the height of the molten aluminum in the front box 2 of the casting and rolling mill, so that when the high-temperature electromagnet 407 moves upward to a certain height, the transmission gear 504 meshes with the rack 501. When the high-temperature electromagnet 407 separates from the surface of the molten aluminum but has not yet extended out of the front box 2 of the casting and rolling mill, the transmission gear 504 separates from the rack 501. The rear end of the rotating shaft 503 extends out of the vertical plate 502 and is fixedly connected to the driving bevel gear 506. The driven bevel gear 507 is fixedly connected to the rotating shaft 505. The driven bevel gear 507 meshes with the driving bevel gear 506. The power component is used to drive the rotating shaft 505 to rotate within a certain height. The inner top wall of the frame 3 is bolted to a limit block. The limit block has a through hole in the middle. The diameter of the through hole is larger than the diameter of the lead screw 402. The lead screw 402 passes through the through hole. The position of the slider 403 is limited by the limit block to ensure that the transmission gear 504 meshes with the rack 501.

[0029] A linkage assembly is provided between the rotating shaft 505 and the mounting shaft 406. The linkage assembly includes a timing belt 508. Both the mounting shaft 406 and the rotating shaft 505 extend into the mounting groove. The timing belt 508 is connected between the mounting shaft 406 and the rotating shaft 505 through a pulley. The timing belt 508 is located in the mounting groove. The outer wall of the mounting block 405 is provided with a high-temperature resistant layer.

[0030] Working principle: During use, the electric push rod 404 controls the mounting block 405 to drive the high-temperature resistant electromagnet 407 downwards, extending into the front box 2 of the casting and rolling mill to attract iron filings in the molten aluminum. When the transmission gear 504 meshes with the rack 501, the rack 501 drives the transmission gear 504 to rotate the rotating shaft 503. The rotating shaft 503 drives the driving bevel gear 506 to rotate, and the driving bevel gear 506 meshes with the driven bevel gear 507, thereby driving the driven bevel gear 507 to... The rotating shaft 505 rotates, driving the mounting shaft 406 to rotate the high-temperature electromagnet 407 via a pulley and synchronous belt 508. The rotation of the high-temperature electromagnet 407 agitates the molten aluminum, improving the iron removal effect. When the high-temperature electromagnet 407 descends to a certain height, the transmission gear 504 separates from the rack 501, and the high-temperature electromagnet 407 resets under the action of a torsion spring. After iron removal is completed, the mounting block 405 drives the high-temperature electromagnet 407 via the electric push rod 404. 7. Moving upwards, after reaching a certain height, the transmission gear 504 re-engages with the rack 501, driving the high-temperature electromagnet 407 to rotate, causing the torsion spring to store force. When the high-temperature electromagnet 407 separates from the surface of the molten aluminum but has not yet extended out of the front box 2 of the casting and rolling mill, the transmission gear 504 separates from the rack 501, and the mounting shaft 406 loses its driving force. Under the action of the torsion spring, it quickly reverses, throwing the excess molten aluminum from the outer wall of the high-temperature electromagnet 407 and the adsorbed iron filings into the front box 2 of the casting and rolling mill. To reduce the possibility of molten aluminum dripping during the movement of the high-temperature electromagnet 407, after the high-temperature electromagnet 407 has basically come to a stop, the electric push rod 404 is controlled to make the high-temperature electromagnet 407 fully extend out of the front box 2 of the casting and rolling mill. The rotary motor 401 is started, and the rotary motor 401 drives the lead screw 402 to rotate. The lead screw 402 drives the slider 403 to move, moving the high-temperature electromagnet 407 above the collection box 6. The high-temperature electromagnet 407 is then de-energized, and the adsorbed iron filings fall into the collection box 6.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An aluminum liquid iron removal device, comprising a base plate (1), a casting and rolling mill front box (2) fixedly connected to the top of the base plate (1), a frame (3) fixedly connected to the top of the base plate (1), an iron removal mechanism provided on the frame (3), the iron removal mechanism comprising a mounting block (405), a high-temperature resistant electromagnet (407) provided at the bottom of the mounting block (405), and an adjustment component for adjusting the position and height of the high-temperature resistant electromagnet (407), characterized in that: The high-temperature resistant electromagnet (407) is rotatably connected to the bottom of the mounting block (405) via a mounting shaft (406). A torsion spring is provided between the mounting shaft (406) and the mounting block (405). A driving mechanism is provided on the top of the mounting block (405). The driving mechanism includes a rotating shaft (505) rotatably connected to the top of the mounting block (405). The driving mechanism also includes a power component, which is used to drive the rotating shaft (505) to rotate within a certain height. A linkage component is provided between the rotating shaft (505) and the mounting shaft (406).

2. The aluminum melt iron removal device according to claim 1, characterized in that: The power assembly includes a rack (501) fixedly connected to the side wall of the frame (3), two vertical plates (502) fixedly connected to the top of the mounting block (405), a rotating shaft (503) rotatably connected between the two vertical plates (502), a transmission gear (504) fixedly connected to the rotating shaft (503), the transmission gear (504) meshing with the rack (501), the rear end of the rotating shaft (503) extending out of the vertical plate (502) and fixedly connected to a driving bevel gear (506), a driven bevel gear (507) fixedly connected to the rotating shaft (505), the driven bevel gear (507) meshing with the driving bevel gear (506).

3. The aluminum melt iron removal device according to claim 1, characterized in that: The linkage component includes a timing belt (508), and the mounting block (405) has a mounting groove. The mounting shaft (406) and the rotating shaft (505) both extend into the mounting groove. The timing belt (508) is connected to the mounting shaft (406) and the rotating shaft (505) through a pulley. The timing belt (508) is located in the mounting groove.

4. The aluminum melt iron removal device according to claim 1, characterized in that: The adjustment assembly includes a rotary motor (401) fixedly connected to one side of the frame (3). The output end of the rotary motor (401) is connected to a lead screw (402) via a coupling. The lead screw (402) is rotatably connected between the inner walls of the frame (3). A slider (403) is threaded onto the lead screw (402). The slider (403) is slidably connected to the frame (3). An electric push rod (404) is fixedly connected to the bottom of the slider (403). The mounting block (405) is fixedly connected to the bottom of the electric push rod (404).

5. The aluminum melt iron removal device according to claim 1, characterized in that: A collection box (6) is fixedly connected to the top of the base plate (1), and the collection box (6) is located on one side of the front box (2) of the casting and rolling mill.

6. The aluminum liquid iron removal device according to claim 1, characterized in that: The frame (3) is U-shaped with the opening facing downwards.

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