Multistage magnetic separation device for lead-zinc smelting slag

Abstract

The utility model relates to lead and zinc smelting slag recovery technical field especially discloses a kind of lead and zinc smelting slag multistage magnetic separation devices, including pedestal, magnetic separation cylinder is rotatably installed on the pedestal, magnetic selection rod is rotatably installed in the inside of the magnetic separation cylinder by labyrinth seal method, protective shell is fixedly installed in the inside of the magnetic separation cylinder, electromagnet is fixedly installed in the inside of the protective shell, first motor is fixedly installed on the magnetic separation cylinder, end cap is screwedly installed on the magnetic separation cylinder, reduction gear box is fixedly installed on the pedestal;Magnetic selection rod in the process of rotating high-speed rotation, such as lead and the metal of weak magnetism will be thrown off magnetic selection rod under the action of centrifugal force, finally by the opening of the bottom end of magnetic separation cylinder discharge, by adjusting the magnetic force size of electromagnet, then again by first motor drive magnetic selection rod high-speed rotation, complete multistage magnetic selection to different metal, reach the effect that can reduce the difficulty of subsequent recovery processing of metal.

Description

Technical Field

[0001] This utility model relates to the field of lead-zinc smelting slag recycling technology, and in particular to a multi-stage magnetic separation device for lead-zinc smelting slag. Background Technology

[0002] In the lead-zinc smelting industry, efficient treatment of lead-zinc smelting slag is crucial to achieving the dual goals of resource recovery and environmental protection. In practical applications, a multi-stage magnetic separation device for lead-zinc smelting slag typically requires the following technologies:

[0003] 1. Mixing technology: Paddle mixers, anchor mixers and other equipment are used to mix lead-zinc smelting slag. During the mixing process, it is ensured that the slag can fully contact the magnetic separation equipment.

[0004] 2. Magnetic separation technology: Using different types of magnetic separation equipment, such as permanent magnet drum magnetic separators and electromagnetic induction magnetic separators, magnetic fields are used to adsorb and separate magnetic substances in lead-zinc smelting slag.

[0005] Existing magnetic separation equipment will uniformly select all magnetic materials. However, lead-zinc smelting slag contains a variety of minerals. In addition to lead-zinc related minerals, there may also be impurities such as iron and manganese with different magnetic properties. A single magnetic separation process is difficult to separate different magnetic minerals, which increases the difficulty of subsequent recycling. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a multi-stage magnetic separation device for lead-zinc smelting slag. This device solves the problem that existing magnetic separation equipment uniformly selects all magnetic materials. However, lead-zinc smelting slag contains a variety of minerals, including lead-zinc related minerals, as well as impurities such as iron and manganese with different magnetic properties. A single magnetic separation process cannot simultaneously separate different magnetic minerals, which increases the difficulty of subsequent recycling.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A multi-stage magnetic separation device for lead-zinc smelting slag includes a base, a magnetic separator rotatably mounted on the base, a magnetic separator rod rotatably mounted inside the magnetic separator via a labyrinth seal, a protective shell fixedly mounted inside the magnetic separator, an electromagnet fixedly mounted inside the protective shell, a first motor fixedly mounted on the magnetic separator, an end cap threaded onto the magnetic separator, a reduction gearbox fixedly mounted on the base, and a second motor fixedly mounted on the base. The protective shell and the magnetic separator rod are rotatably connected via a labyrinth seal. The electromagnet and the magnetic separator rod are in contact, and the contact surfaces of the electromagnet and the magnetic separator rod are coated with graphite lubricant. The output shaft of the reduction gearbox is fixedly connected to the magnetic separator, and the input shaft of the reduction gearbox is fixedly connected to the second motor.

[0009] Preferably, a moving wire frame is fixedly installed on the magnetic separator.

[0010] Preferably, a wire guide frame is symmetrically fixedly installed on the base.

[0011] Preferably, a take-up drum is symmetrically and rotatably mounted on the base.

[0012] Preferably, a torsion spring is fixedly installed on the take-up drum, and the other end of the torsion spring is fixedly connected to the base.

[0013] Preferably, wires are fixedly installed at both ends of the moving wire frame, and the two wires are respectively connected to the electromagnet and the first motor.

[0014] Preferably, both conductors are slidably connected to the wire guide frame, and the contact surfaces between the conductors and the wire guide frame are coated with lubricant.

[0015] Preferred configuration: Two wires are wound around a take-up drum.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. After the slag is discharged, the power of the electromagnet is reduced, thus decreasing the magnetic force of the magnetic separator. Then, the first motor starts, driving the magnetic separator to rotate at high speed. During the high-speed rotation of the magnetic separator, weakly magnetic metals such as lead will be thrown off the magnetic separator under the action of centrifugal force and finally discharged from the opening at the bottom of the magnetic separator. By adjusting the magnetic force of the electromagnet and then driving the magnetic separator to rotate at high speed by the first motor, weakly magnetic metals are thrown out, completing the multi-stage magnetic separation of different metals and achieving the effect of reducing the difficulty of subsequent metal recycling and processing.

[0018] II. During operation, after the second motor starts, it will drive the magnetic separator to rotate through the reduction gearbox. The reduction gearbox can increase the output torque of the second motor. When the second motor starts, it first rotates the magnetic separator 180 degrees so that the end cover is facing upward. Unscrew the end cover and pour the crushed slag into the magnetic separator. Then tighten the end cover. The electromagnet starts at its highest power to generate magnetic force on the magnetic separator rod. Then the second motor starts and reverses alternately, driving the magnetic separator to alternately rotate 180 degrees in both directions. During the rotation of the magnetic separator, the slag inside the magnetic separator will continuously turn over, causing all the magnetic metals in the slag to be adsorbed onto the magnetic separator rod. After the adsorption is completed, turn the end cover downward and unscrew it to discharge the magnetically separated slag from the inside of the magnetic separator. Through the continuous turning of the magnetic separator, the magnetic metals in the slag can be fully adsorbed by the magnetic separator rod, achieving the effect of thorough magnetic separation. Attached Figure Description

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0020] Figure 1 This is an overall structural diagram of the present invention;

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0024] Legend: 1. Base; 2. Magnetic separator; 3. Magnetic separator rod; 4. Protective shell; 5. Electromagnet; 6. First motor; 7. End cover; 8. Reduction gearbox; 9. Second motor; 11. Wire guide frame; 12. Wire guide frame; 13. Take-up drum; 14. Torsion spring. Detailed Implementation

[0025] This application provides a multi-stage magnetic separation device for lead-zinc smelting slag, effectively solving the technical problem that existing magnetic separation equipment uniformly selects all magnetic materials. However, lead-zinc smelting slag contains various minerals, including lead-zinc related minerals, as well as impurities with different magnetic properties such as iron and manganese. A single magnetic separation process cannot simultaneously separate different magnetic minerals, increasing the difficulty of subsequent recycling. After the slag is discharged, the electromagnet power is reduced, decreasing the magnetic force of the magnetic separator. Then, the first motor starts, driving the magnetic separator to rotate at high speed. During this high-speed rotation, weakly magnetic metals such as lead are thrown off the separator under centrifugal force and discharged through the opening at the bottom of the magnetic separator drum. By adjusting the electromagnet's magnetic force and then driving the magnetic separator to rotate at high speed again, weakly magnetic metals are thrown out, completing multi-stage magnetic separation of different metals and achieving a reduction in magnetic degradation. The effect on the difficulty of subsequent metal recycling and processing: During operation, after the second motor starts, it will drive the magnetic separator to rotate through the reduction gearbox. The reduction gearbox can increase the output torque of the second motor. The second motor starts first, rotating the magnetic separator 180 degrees so that the end cover is facing upward. Unscrew the end cover and pour the crushed slag into the magnetic separator. Then tighten the end cover. The electromagnet starts at its highest power to generate magnetic force on the magnetic separator rod. Then the second motor starts in both forward and reverse directions, driving the magnetic separator to alternately rotate 180 degrees in both directions. During the rotation of the magnetic separator, the slag inside the magnetic separator will continuously turn over, causing all the magnetic metals in the slag to be adsorbed onto the magnetic separator rod. After adsorption is completed, turn the end cover downward and unscrew it to discharge the magnetically separated slag from the inside of the magnetic separator. Through the continuous turning of the magnetic separator, the magnetic metals in the slag can be fully adsorbed onto the magnetic separator rod, achieving the effect of thorough magnetic separation.

[0026] Example

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the problem that existing magnetic separation equipment uniformly selects all magnetic materials. However, lead-zinc smelting slag contains a variety of minerals, including lead-zinc related minerals, as well as impurities such as iron and manganese with different magnetic properties. A single magnetic separation process cannot simultaneously separate different magnetic minerals, increasing the difficulty of subsequent recycling. The overall approach is as follows:

[0028] To address the problems existing in the prior art, this utility model provides a multi-stage magnetic separation device for lead-zinc smelting slag, including a base 1, a magnetic separator 2 rotatably mounted on the base 1, a magnetic separator rod 3 rotatably mounted inside the magnetic separator 2 through a labyrinth seal method, a protective shell 4 fixedly mounted inside the magnetic separator 2, an electromagnet 5 fixedly mounted inside the protective shell 4, a first motor 6 fixedly mounted on the magnetic separator 2, an end cap 7 threadedly mounted on the magnetic separator 2, a reduction gearbox 8 fixedly mounted on the base 1, and a second motor 9 fixedly mounted on the base 1.

[0029] The protective shell 4 and the magnetic separator 3 are rotatably connected by a labyrinth seal method. The electromagnet 5 and the magnetic separator 3 are in contact. The contact surface between the electromagnet 5 and the magnetic separator 3 is coated with graphite lubricant. The output shaft of the reduction gearbox 8 is fixedly connected to the magnetic separator 2. The input shaft of the reduction gearbox 8 is fixedly connected to the second motor 9. A moving wire frame 11 is fixedly installed on the magnetic separator 2. A fixed wire frame 12 is symmetrically fixedly installed on the base 1.

[0030] A take-up drum 13 is symmetrically and rotatably mounted on the base 1. A torsion spring 14 is fixedly mounted on the take-up drum 13. The other end of the torsion spring 14 is fixedly connected to the base 1. Wires are fixedly mounted on both ends of the moving wire frame 11. The two wires are respectively connected to the electromagnet 5 and the first motor 6. The two wires are slidably connected to the fixed wire frame 12. The contact surface between the wires and the fixed wire frame 12 is coated with lubricant. The two wires are respectively wound on the take-up drum 13.

[0031] Base 1: Serves as the supporting foundation for the entire multi-stage magnetic separation device for lead-zinc smelting slag. It provides an installation platform for components such as magnetic separator 2, reduction gearbox 8, second motor 9, wire guide frame 12, and take-up drum 13, ensuring the overall stability of the device and keeping the relative positions of each component fixed during operation, thus ensuring the smooth operation of magnetic separation.

[0032] Magnetic separator 2: Rotatably mounted on base 1, it is the main place for magnetic separation of lead-zinc smelting slag. It contains the slag to be magnetically separated. Driven by the second motor 9 through the reduction gearbox 8, it rotates, causing the slag to continuously turn over, so that the magnetic metal in it can fully contact and be adsorbed by the magnetic separator rod 3. At the same time, the slag can be loaded and discharged by unscrewing the end cover 7. A moving wire frame 11 is also fixedly installed on the magnetic separator 2 to drive the wire to move with the rotation of the magnetic separator 2.

[0033] Magnetic separator 3: It is rotatably installed inside the magnetic separator 2 through a labyrinth seal method and is in contact with the electromagnet 5. Under the action of the electromagnet 5, it generates magnetic force and adsorbs magnetic metals in the slag. Driven by the first motor 6, it rotates at high speed and uses centrifugal force to reduce the magnetic force and throw off the metals with weaker magnetic force, thereby achieving the separation of different magnetic metals. It is one of the core components for realizing the magnetic separation function.

[0034] Protective shell 4: It is fixedly installed inside the magnetic separator 2 to protect the electromagnet 5, prevent slag and other materials from damaging the electromagnet 5, and ensure that the electromagnet 5 can work normally and stably. At the same time, it is rotatably connected to the magnetic separator 3 through a labyrinth seal method to ensure the sealing of the magnetic separator 3 when it rotates, and prevent slag from entering and affecting the contact between the electromagnet 5 and the magnetic separator 3 and its normal operation.

[0035] Electromagnet 5: Fixedly installed inside the protective shell 4, in contact with the magnetic separator 3, and the contact surface is coated with graphite lubricant to reduce friction. By controlling its own power, the magnetic separator 3 generates magnetic forces of different intensities. It starts with the highest power at the beginning of magnetic separation, so that the magnetic separator 3 generates a strong magnetic force to attract magnetic metals in the slag. In subsequent steps, the power is reduced to reduce the magnetic force of the magnetic separator 3. In conjunction with the first motor 6, the magnetic separator 3 is driven to rotate and throw out the weaker magnetic metals, thus realizing multi-stage magnetic separation.

[0036] First motor 6: Fixedly installed on magnetic separator 2. After starting, it drives magnetic separator 3 to rotate at high speed. After the electromagnet 5 reduces the magnetic force, the centrifugal force generated by the high-speed rotation of magnetic separator 3 is used to throw the weaker magnetic metal off the magnetic separator 3, thus completing the separation of different magnetic metals. It is one of the power components for realizing multi-stage magnetic separation.

[0037] End cap 7: threaded on the magnetic separator 2. When loading slag, open end cap 7 to facilitate pouring the crushed slag into the magnetic separator 2. After magnetic separation, open end cap 7 to discharge the magnetically separated slag from the magnetic separator 2. By tightening and unscrewing end cap 7, the sealing of the magnetic separator 2 during operation is ensured to prevent slag leakage.

[0038] The reduction gearbox 8 is fixedly installed on the base 1. Its input shaft is fixedly connected to the second motor 9, and its output shaft is fixedly connected to the magnetic separator 2. Its function is to increase the torque output of the second motor 9, so that the second motor 9 can drive the magnetic separator 2 to rotate more stably and efficiently, and ensure that the magnetic separator 2 has enough power to drive the slag to turn over during the alternating forward and reverse rotation process, so as to achieve full magnetic separation.

[0039] The second motor 9 is fixedly installed on the base 1 and serves as the power source for the rotation of the magnetic separator 2. After starting, it drives the magnetic separator 2 to rotate through the reduction gearbox 8. First, the magnetic separator 2 rotates 180 degrees to open the end cover 7 and load the slag. Then, it starts in both forward and reverse directions alternately, driving the magnetic separator 2 to rotate 180 degrees in both directions alternately, so that the slag is constantly turned over in the magnetic separator 2 to achieve full adsorption of magnetic metals.

[0040] The wire guide frame 11 is fixedly installed on the magnetic separator 2. When the magnetic separator 2 rotates, it pulls the wire connected to it to rotate with it, so that the wire slides along the wire guide frame 12, ensuring the normal power supply connection between the electromagnet 5 and the first motor 6 during the rotation of the magnetic separator 2. At the same time, by pulling the wire, it drives the take-up drum 13 to rotate, realizing the take-up and take-up of the wire.

[0041] Fixed wire frame 12: Symmetrically fixedly installed on the base 1, and slidably connected to the wires led out from the moving wire frame 11. The contact surface is coated with lubricant to guide the movement direction of the wires, ensure that the wires can slide in an orderly manner during the rotation of the magnetic separator 2, avoid the wires from getting tangled and messy, and ensure the stability of the electrical connection of the device.

[0042] Take-up drum 13: Symmetrically rotated and mounted on base 1, with the wires wound around the take-up drum 13 respectively. During the rotation of magnetic separator 2, when the moving wire frame 11 pulls the wire to make the take-up drum 13 rotate, the torsion spring 14 stores energy. When the wire is released, the torsion spring 14 causes the take-up drum 13 to reverse and rewind the released wire, realizing automatic take-up and unwinding of the wire. This ensures reasonable length adjustment of the wire during the alternating forward and reverse rotation of magnetic separator 2, preventing the wire from being too slack or too tight and affecting the operation of the equipment.

[0043] Torsion spring 14: One end is fixed to the take-up drum 13, and the other end is fixedly connected to the base 1. It stores energy when the take-up drum 13 rotates. When the wire needs to be retracted, it releases energy to reverse the take-up drum 13, thereby realizing automatic winding of the wire. It also assists in adjusting the length of the wire during the rotation of the magnetic separator 2, ensuring the reliability and stability of the electrical connection of the device.

[0044] Working principle:

[0045] The first step is to connect the two wires to the power supply equipment. When in use, after the second motor 9 starts, it will drive the magnetic separator 2 to rotate through the reduction gearbox 8. The reduction gearbox 8 can increase the output torque of the second motor 9. When the second motor 9 starts, it first rotates the magnetic separator 2 180 degrees, so that the end cover 7 is facing upward. Unscrew the end cover 7 and pour the crushed slag into the magnetic separator 2. Then tighten the end cover 7. The electromagnet 5 starts at its highest power to generate magnetic force on the magnetic separator rod 3. Then the second motor 9 starts in both forward and reverse directions alternately, driving the magnetic separator 2 to alternately rotate 180 degrees in both directions. During the rotation of the magnetic separator 2, the slag inside the magnetic separator 2 will continuously turn over, causing all the magnetic metals in the slag to be adsorbed onto the magnetic separator rod 3. After the adsorption is completed, turn the end cover 7 downward and then unscrew it to discharge the magnetically separated slag inside the magnetic separator 2. Through the continuous turning of the magnetic separator 2, the magnetic metals in the slag can be fully adsorbed by the magnetic separator rod 3, achieving the effect of full magnetic separation.

[0046] The second step involves reducing the power of electromagnet 5 after the slag is discharged, thereby decreasing the magnetic force of magnetic separator 3. Then, the first motor 6 is started to drive magnetic separator 3 to rotate at high speed. During the high-speed rotation of magnetic separator 3, weakly magnetic metals such as lead will be thrown off magnetic separator 3 under the action of centrifugal force and finally discharged from the opening at the bottom of magnetic separator 2. By adjusting the magnetic force of electromagnet 5 and then driving magnetic separator 3 to rotate at high speed by the first motor 6, weakly magnetic metals are thrown out, completing multi-stage magnetic separation of different metals and achieving the effect of reducing the difficulty of subsequent metal recycling and processing.

[0047] In the third step, during the alternating forward and reverse rotation of the magnetic separator 2, the moving wire frame 11 will pull the wire to rotate and make the wire slide along the fixed wire frame 12. When the forward rotating wire is pulled, it will drive the take-up drum 13 to rotate. The take-up drum 13 will cause the torsion spring 14 to store energy. When the reverse rotating wire is released, the torsion spring 14 will cause the take-up drum 13 to reverse and rewind the released wire.

[0048] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A multi-stage magnetic separation device for lead-zinc smelting slag, comprising a base (1), characterized in that, A magnetic separator (2) is rotatably mounted on the base (1). A magnetic separator rod (3) is rotatably mounted inside the magnetic separator (2) through a labyrinth seal. A protective shell (4) is fixedly mounted inside the magnetic separator (2). An electromagnet (5) is fixedly mounted inside the protective shell (4). A first motor (6) is fixedly mounted on the magnetic separator (2). An end cap (7) is threaded onto the magnetic separator (2). A reduction gearbox (8) is fixedly mounted on the base (1). A second motor (9) is fixedly mounted on the base (1). Among them, the protective shell (4) and the magnetic separator (3) are rotatably connected by a labyrinth seal method, the electromagnet (5) and the magnetic separator (3) are in contact, the contact surface of the electromagnet (5) and the magnetic separator (3) is coated with graphite lubricant, the output shaft of the reduction gearbox (8) is fixedly connected to the magnetic separator (2), and the input shaft of the reduction gearbox (8) is fixedly connected to the second motor (9).

2. The multi-stage magnetic separation device for lead-zinc smelting slag as described in claim 1, characterized in that, A moving wire frame (11) is fixedly installed on the magnetic separator (2).

3. The multi-stage magnetic separation device for lead-zinc smelting slag as described in claim 1, characterized in that, A wire guide frame (12) is symmetrically fixedly installed on the base (1).

4. The multi-stage magnetic separation device for lead-zinc smelting slag as described in claim 1, characterized in that, A take-up drum (13) is symmetrically and rotatably mounted on the base (1).

5. A multi-stage magnetic separation device for lead-zinc smelting slag as described in claim 4, characterized in that, A torsion spring (14) is fixedly installed on the take-up drum (13), and the other end of the torsion spring (14) is fixedly connected to the base (1).

6. A multi-stage magnetic separation device for lead-zinc smelting slag as described in claim 2, characterized in that, Both ends of the moving wire frame (11) are fixedly installed with wires, and the two wires are respectively connected to the electromagnet (5) and the first motor (6).

7. A multi-stage magnetic separation device for lead-zinc smelting slag as described in claim 6, characterized in that, Both of the wires are slidably connected to the wire guide frame (12), and the contact surfaces of the wires and the wire guide frame (12) are coated with lubricant.

8. A multi-stage magnetic separation device for lead-zinc smelting slag as described in claim 6, characterized in that, The two wires are respectively wound around the take-up drum (13).

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