Dry magnetic separation recovery device for kiln slag of zinc volatilization kiln

Abstract

The invention discloses a dry magnetic separation recovery device for kiln slag of a zinc volatilization kiln, which relates to the technical field of magnetic separation of kiln slag and comprises a magnetic separation shell and two magnetic separation roller bodies arranged in the magnetic separation shell side by side, and a flow dividing mechanism is arranged above the middle of the two magnetic separation roller bodies; the flow dividing mechanism comprises a first flow dividing plate and a second flow dividing plate, one end of the first flow dividing plate and one end of the second flow dividing plate are in butt joint, the first flow dividing plate and the second flow dividing plate are symmetrically and obliquely arranged above the magnetic separation roller body, built-in grooves are formed in the first flow dividing plate and the second flow dividing plate correspondingly, and adjusting plates capable of moving along the built-in grooves are arranged in the built-in grooves; an adjusting plate is matched with a rotating magnetic separation roller body to flatly spread and uniformly distribute materials on the surface of the magnetic separation roller body, so that the materials pushed and extruded at a material storage groove are in uniform contact with the magnetic separation roller body, and the problem that the materials are extruded and fall off due to the fact that the materials are accumulated between the magnetic separation roller bodies and are not subjected to magnetic separation is solved; and 100% of the materials pass through the magnetic separation area, and mechanical extrusion falling loss is avoided.

Description

Technical Field

[0001] This invention relates to the field of kiln slag magnetic separation technology, and in particular to a dry magnetic separation and recovery device for zinc volatilization kiln slag. Background Technology

[0002] In the zinc smelting process, the slag from the zinc volatilization kiln is an important secondary resource, which usually contains valuable metal components such as iron oxides and zinc-iron spinel. The traditional treatment method is to use dry magnetic separation to recover the iron resources in it.

[0003] In traditional double-roll magnetic separators, the material to be magnetically separated is usually fed directly to the junction of the two magnetic rollers, which is the closest point between the two rollers. The rollers rotate in opposite directions, causing the material to be squeezed rather than effectively dispersed at the junction. The magnetic adsorption area is limited: the effective magnetic adsorption area on the roller surface usually only covers an arc surface of 120°-180°, while the accumulation point is located in the weak magnetic area. As a result, the material is mechanically squeezed out before being fully magnetically separated, affecting the magnetic separation effect. Summary of the Invention

[0004] The purpose of this invention is to provide a dry magnetic separation recovery device for zinc volatilization kiln slag. It features an adjustment plate that works in conjunction with a rotating magnetic separation roller to evenly distribute the material on the surface of the magnetic separation roller, ensuring that the material pushed in the storage trough makes uniform contact with the magnetic separation roller. This solves the problem of material being squeezed and dropped without magnetic separation when it accumulates between the magnetic separation rollers. Furthermore, the inverted triangular storage trough of the diversion mechanism guides the material, ensuring that 100% of it passes through the magnetic separation zone without mechanical squeezing or dropping.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dry magnetic separation recovery device for zinc volatilization kiln slag, comprising a magnetic separation shell, two magnetic separation rollers arranged side by side inside the magnetic separation shell, and a diversion mechanism provided above the middle of the two magnetic separation rollers;

[0006] The diversion mechanism includes a first diversion plate and a second diversion plate that are connected to each other at one end. The first diversion plate and the second diversion plate are symmetrically inclined above the magnetic separation roller. Both the first diversion plate and the second diversion plate have built-in grooves, and an adjustment plate that can move along the built-in groove is provided in the built-in groove.

[0007] The first diverter plate forms an inverted triangular storage trough with one of the magnetic separation rollers, and the second diverter plate also forms an inverted triangular storage trough with the other magnetic separation roller. The adjusting plate moves in the built-in trough to adjust the distance between one end of the adjusting plate and the magnetic separation roller, and the distance is adapted to the size of the kiln slag particles to be magnetically separated.

[0008] Furthermore, a tapered mounting plate is provided at the docking end of the first and second diverter plates.

[0009] Further, the cone-shaped mounting plate extends downward on both sides of the included angle surface, and a cover plate covers the shunt surfaces of the first and second shunt plates.

[0010] Further, the first and second shunt plates are provided with a drive assembly for driving the movement of the adjustment plate.

[0011] Further, the drive assembly includes a moving plate, a first linkage bent plate, a second linkage bent plate, and a drive assembly for driving the moving plate to move up and down, and the first and second linkage bent plates are symmetrically arranged and the vertical plate surfaces are arranged at both ends of the moving plate.

[0012] Further, the first and second linkage bent plates are provided with a limiting sliding groove on the transverse plate, and the adjustment plate is provided with a plug rod at one end, which is inserted into the limiting sliding groove.

[0013] Further, the cone-shaped mounting plate is connected to the first and second shunt plates through elastic pads, and the first and second shunt plates are provided with a drive mechanism for driving the synchronous and symmetrical rotation of the first and second shunt plates.

[0014] Further, the drive mechanism includes a first shaft and a second shaft driven by a gear transmission and arranged side by side, the first shunt plate is connected to the first shaft, the second shunt plate is connected to the second shaft, and the first shaft is driven by a motor.

[0015] Further, the magnetic roller body is provided with a plurality of magnetic blocks arranged in a ring shape, and the adjustment assembly is arranged at the shaft center of the magnetic roller body, and the adjustment assembly drives the plurality of magnetic blocks to move in a direction perpendicular to the shaft line of the magnetic roller body.

[0016] The technical effects and advantages of the present application are as follows:

[0017] 1. The second shunt plate and another magnetic roller body also form an inverted triangular material storage groove, and the adjustment plate moves in the built-in groove to adjust the distance between one end of the adjustment plate and the magnetic roller body, and the distance is adapted to the size of the magnetic selected kiln slag particles, and the material to be magnetically selected is guided through the first and second shunt plates and gathered in the inverted triangular material storage groove, so that the material is not accumulated between the two magnetic roller bodies, and when the two magnetic roller bodies rotate symmetrically, the adjustment plate cooperates with the rotating magnetic roller body to evenly distribute the material on the surface of the magnetic roller body, so that the material in the material storage groove is evenly contacted with the magnetic roller body, solving the problem that the material is not magnetically selected and is squeezed off when accumulated between the magnetic roller bodies.

[0018] 2、The present application drives the two sides of the adjusting plate along the built-in groove synchronously through the symmetrical transmission of the first linkage bending plate and the second linkage bending plate, so that the distance between the first and second shunt plates and the magnetic separation roller body matches the material particle size in real time, ensures that the kiln slag of different particle sizes can be evenly spread on the roller body surface, avoids over-thick accumulation or fine particle leakage, the vertical plate surface of the first linkage bending plate and the second linkage bending plate is fixed at both ends of the moving plate to form a rigid support, and the limiting sliding groove on the horizontal plate and the inserting rod of the adjusting plate constitute a sliding pair, which not only ensures synchronicity, but also prevents eccentric load from being stuck, and the linear motion of the inserting rod in the limiting sliding groove accurately controls the opening angle of the shunt plate, so that the material is always guided along the center of the inverted triangular storage groove, and extrusion accumulation between the roller bodies is eliminated.

[0019] 3、The present application has a plurality of magnetic blocks arranged in a ring in the magnetic separation roller body, and an adjusting assembly is arranged at the shaft center of the magnetic separation roller body, the adjusting assembly drives the plurality of magnetic blocks to move in the direction perpendicular to the shaft line of the magnetic separation roller body, the magnetic field strength of the magnetic separation roller body is adjusted by adjusting the position of the magnetic blocks, the self-adaptive separation of different magnetic minerals by a single magnetic separator is realized, the limitation of traditional multiple machine series connection is broken through, the magnetic blocks can move radially, the magnetic field strength on the surface of the roller body is continuously adjustable in the range of 0.2-1.5T, covering the separation requirements from weak magnetic to strong magnetic, by adjusting the position of the magnetic blocks, the same roller body can output high-strength roughing magnetic field and low-strength cleaning magnetic field in sequence, realizing one machine multi-stage separation. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 It is a structure half-section view of the magnetic selection shell of the present application;

[0022] Figure 3 It is a structure schematic diagram of the shunt mechanism of the present application;

[0023] Figure 4 It is a structure schematic diagram of the shunt mechanism and the driving assembly of the present application;

[0024] Figure 5 It is an enlarged view of A of the present application; Figure 4

[0025] Figure 6 It is a material distribution plane section view of the present application;

[0026] Figure 7 It is a structure schematic diagram of the driving mechanism of the present application;

[0027] Figure 8 It is a structure section view of the magnetic separation roller body of the present application;

[0028] Figure 9 It is a structure section view of the adjusting assembly of the present application. ​

[0029] Fig.:

[0030] 1, magnetic shell; 2, magnetic roller body; 21, magnetic block; 3, flow distribution mechanism; 31, first flow distribution plate; 311, built-in groove; 32, second flow distribution plate; 33, adjustment plate; 331, insertion rod; 34, conical mounting plate; 4, driving assembly; 41, moving plate; 42, first linkage bent plate; 421, limiting sliding groove; 43, second linkage bent plate; 44, driving assembly; 5, driving mechanism; 51, first shaft; 52, second shaft; 6, adjustment assembly; 61, air groove; 62, telescopic rod. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0032] Embodiment one: refer to Figure 1 - Figure 6 For the first embodiment of the present application, a dry magnetic separation recovery device for zinc volatilization kiln slag is provided, which comprises a magnetic shell 1, two magnetic roller bodies 2 arranged side by side in the magnetic shell 1, a driving motor arranged on the magnetic shell 1, a shaft connected with one of the magnetic roller bodies 2, and meshing gears installed on the shafts of the two magnetic roller bodies 2. When the driving motor drives one of the magnetic roller bodies 2 to rotate, the other magnetic roller body 2 will rotate in the opposite direction synchronously.

[0033] The upper part of the two magnetic roller bodies 2 is provided with a flow distribution mechanism 3. The flow distribution mechanism 3 comprises a first flow distribution plate 31 and a second flow distribution plate 32 which are in abutment with each other. The first flow distribution plate 31 and the second flow distribution plate 32 are symmetrically and obliquely arranged above the magnetic roller body 2. The first flow distribution plate 31 and the second flow distribution plate 32 are provided with built-in grooves 311. The built-in grooves 311 are provided with adjustment plates 33 which can move along the built-in grooves 311.

[0034] The first shunt plate 31 and one of the magnetic separation roller bodies 2 form an inverted triangular material storage groove, the second shunt plate 32 and the other magnetic separation roller body 2 also form an inverted triangular material storage groove, and the adjusting plate 33 moves in the built-in groove 311 for adjusting the distance between one end thereof and the magnetic separation roller body 2, and the distance is adapted to the size of the kiln slag particles to be magnetically separated. The material to be magnetically separated is guided through the first shunt plate 31 and the second shunt plate 32 and gathered at the inverted triangular material storage groove, so that there is no material accumulation between the two magnetic separation roller bodies 2. When the two magnetic separation roller bodies 2 rotate symmetrically, the adjusting plate 33 cooperates with the rotating magnetic separation roller body 2 to evenly distribute the material on the surface of the magnetic separation roller body 2, so that the material pushed at the material storage groove is evenly in contact with the magnetic separation roller body 2, solving the problem that the material accumulated between the magnetic separation roller bodies 2 is not magnetically separated and is squeezed off. Through the guidance of the inverted triangular material storage groove of the shunt mechanism 3, the material is 100% guided through the magnetic separation area without mechanical squeezing loss.

[0035] The movable design of the adjusting plate 33 allows real-time adjustment of the distance from the magnetic separation roller body according to the size of the kiln slag particles, for example, coarse particles are adjusted to 8mm, and fine particles are adjusted to 3mm, to avoid blockage of large particles or dusting of fine particles.

[0036] The buffering effect of the inverted triangular material storage groove: after the material is guided through the shunt plate, it is temporarily accumulated in the material storage groove to form natural classification, and the high-density magnetic minerals sink first to contact the roller body, thereby improving the selectivity of separation.

[0037] The first shunt plate 31 and the second shunt plate 32 are provided with a tapered mounting plate 34 at the abutting end.

[0038] The tapered mounting plate 34 extends downward on both sides of the included angle surface and covers the shunt surface of the first shunt plate 31 and the second shunt plate 32. By covering, the connecting included angle between the first shunt plate 31 and the second shunt plate 32 and the tapered mounting plate 34 is blocked, preventing the material from entering the connecting included angle and accumulating therein when the material is discharged.

[0039] The dynamic adjustment of the adjusting plate 33 maintains the thickness of the material layer in the optimal range, and the magnetic minerals are fully exposed to the high-intensity magnetic field area of the roller body 2.

[0040] The first shunt plate 31 and the second shunt plate 32 are provided with a driving assembly 4 at one end for moving the adjusting plate 33. The driving assembly 4 can synchronously adjust the distance between the first shunt plate 31 and the second shunt plate 32 and the two magnetic separation roller bodies 2 to adapt to the magnetic separation of different particle materials, and can evenly spread according to the size of the particles.

[0041] The driving assembly 4 comprises a moving plate 41, a first linkage bent plate 42, a second linkage bent plate 43, and a driving assembly 44 for driving the moving plate 41 to move up and down, the first linkage bent plate 42 and the second linkage bent plate 43 are symmetrically arranged and the vertical plates are arranged at both ends of the moving plate 41 respectively, the transverse plates of the first linkage bent plate 42 and the second linkage bent plate 43 are both provided with limiting sliding grooves 421, and the adjusting plates 33 are both provided with inserting rods 331 at one end.

[0042] The driving assembly 44 drives the moving plate 41 to move up and down, through the symmetric transmission of the first linkage bent plate 42 and the second linkage bent plate 43, the two adjusting plates 33 are synchronously driven to slide along the built-in groove 311, so that the first shunt plate 31 and the second shunt plate 32 are matched with the particle size of the material in real time, and the kiln slag with different particle sizes can be evenly spread on the surface of the roller body, so that the over-thick accumulation or the fine particle leakage is avoided, the vertical plates of the first linkage bent plate 42 and the second linkage bent plate 43 are fixed at both ends of the moving plate 41 to form a rigid support, and the limiting sliding grooves 421 on the transverse plates and the inserting rods 331 of the adjusting plates 33 form a sliding pair, which not only ensures the synchronism, but also prevents the eccentric load from being stuck, the linear motion of the inserting rod 331 in the limiting sliding groove 421 accurately controls the opening and closing angle of the shunt plate, so that the material is always guided along the center of the inverted triangular storage groove, and the extrusion and accumulation between the roller bodies are avoided.

[0043] The driving assembly 44 drives the moving plate 41 to move according to the preset particle parameters, drives the adjusting plate 33 to move close to or away from the roller body 2 through the first linkage bent plate 42 and the second linkage bent plate 43 and the limiting sliding groove 421, and reduces or expands the distance to the target value, the material is evenly spread under the shearing action of the adjusting plate 33 and the rotating roller body 2, and the distance is adjusted by the adjusting plate 33, so that the material with different particle sizes can be evenly spread for magnetic separation, the magnetic minerals are adsorbed to the roller surface, the non-magnetic minerals are naturally dropped, and efficient separation is completed.

[0044] Embodiment two: refer to Figure 7 For the second embodiment of the application, the difference between this embodiment and the first embodiment is that the tapered mounting plates 34 are respectively butted with the first shunt plate 31 and the second shunt plate 32 through the elastic pads 341, and the first shunt plate 31 and the second shunt plate 32 are provided with a driving mechanism 5 for driving the first shunt plate 31 and the second shunt plate 32 to synchronously and symmetrically rotate.

[0045] The driving mechanism 5 comprises a first shaft 51 and a second shaft 52 arranged side by side by gear transmission, the first flow dividing plate 31 is connected with the first shaft 51, the second flow dividing plate 32 is connected with the second shaft 52, and the first shaft 51 is driven by a motor, the driving mechanism 5 adjusts the inclination angle of the first flow dividing plate 31 and the second flow dividing plate 32, adjusts the storage amount of the inverted triangular storage groove according to the discharging amount, when the material is too much, the first flow dividing plate 31 and the second flow dividing plate 32 are adjusted to be close to each other, so as to increase the depth of the triangular storage groove, so as to store more material and avoid the loss of material from the other end of the roller body, it should be noted that during the adjustment of the first flow dividing plate 31 and the second flow dividing plate 32, the adjusting plate 33 adjusts the distance between the roller body according to the need.

[0046] The driving mechanism 5 drives the first shaft 51 and the second shaft 52 by gear transmission, so that the first flow dividing plate 31 and the second flow dividing plate 32 can be synchronously and symmetrically rotated, and the depth of the inverted triangular storage groove is adjusted.

[0047] When the material is too much, the first flow dividing plate 31 and the second flow dividing plate 32 are close to each other, the depth of the storage groove is increased, the material is prevented from overflowing from the other end of the roller body, and continuous and stable feeding is ensured; when the material is less, the first flow dividing plate 31 and the second flow dividing plate 32 are appropriately opened, so that the angle between the first flow dividing plate 31 and the second flow dividing plate 32 and the roller body is increased, the discharging pressure between the flow dividing plate and the roller body is reduced, and the uneven sorting caused by accumulation is prevented.

[0048] The conical mounting plate 34 is butted with the first flow dividing plate 31 and the second flow dividing plate 32 through the elastic pad 341, which provides buffering during angle adjustment, avoids wear or vibration caused by rigid contact, prolongs the service life of the equipment, and the elastic pad 341 closes the connection, prevents the material from reaching the connection, avoids the first shaft 51 and the second shaft 52 from being stuck by the material during rotation, causes adjustment failure and causes damage.

[0049] Embodiment three: refer to Figure 8 - Figure 9 As the third embodiment of the application, which is different from the second embodiment, in the actual magnetic separation process, the particles after magnetic separation also include weak magnetic particles and strong magnetic particles, the precisions of the two particles are different, and secondary screening is needed, and different magnetic separators are needed for secondary screening due to different magnetic field strengths of each magnetic separator.

[0050] To solve the above problems, the embodiment is provided by arranging a plurality of magnetic blocks 21 in the magnetic roll body 2 in a ring shape, arranging an adjusting assembly 6 at the shaft center of the magnetic roll body 2, driving the plurality of magnetic blocks 21 to move along the direction perpendicular to the shaft line of the magnetic roll body 2, adjusting the magnetic field strength of the magnetic roll body 2 by adjusting the position of the magnetic block 21, realizing the self-adaptive separation of different magnetic minerals by a single magnetic separator, breaking through the limitation of traditional multi-machine series connection, and enabling the magnetic block 21 to move radially, so that the magnetic field strength on the surface of the roll body is continuously adjustable in the range of 0.2-1.5T, covering the separation requirements from weak magnetic to strong magnetic, adjusting the position of the magnetic block, and enabling the same roll body to output high-strength roughing magnetic field and low-strength cleaning magnetic field in sequence, thereby realizing multi-stage separation by a single machine.

[0051] The adjusting assembly 6 includes an air groove 61 and a telescopic rod 62, the air groove 61 is arranged in the magnetic roll body 2 in a ring shape and has the same number as the magnetic blocks 21, the telescopic rod 62 is arranged in the air groove 61 through a piston plate at one end, and the telescopic rod 62 is connected with the magnetic block 21 at one end, the shaft of the magnetic roll body 2 is connected with a gas, and the telescopic rod 62 is retracted in the air groove 61 by gas injection or gas extraction, so as to drive the magnetic block 21 to move close to or away from the outer wall of the magnetic roll body 2, thereby adjusting the magnetic attraction.

[0052] It should be noted that the magnetic roll body 2 generates a certain centrifugal force on the magnetic block 21 during rotation, and the pneumatic adjustment may lack support, causing slight displacement of the magnetic block 21, and the present scheme further provides a specific structure of the adjusting assembly 6, as shown in Figure 9 The adjusting assembly 6 includes a ring-shaped bevel gear ring, the ring-shaped bevel gear ring is driven by a motor alone, an inner groove for accommodating the adjusting assembly 6 is arranged in the magnetic roll body 2, a plurality of rotating pipes are arranged in the inner groove, the plurality of rotating pipes are in transmission connection with the ring-shaped bevel gear ring through bevel gears, one end of the magnetic block 21 is connected with a rod body, the rod body is in threaded connection with the rotating pipe, and a support for limiting the rotation of the rod body is further arranged in the inner groove, when the ring-shaped bevel gear ring rotates, the rod body can be driven to move up and down according to the thread, and then the position of the magnetic block 21 is adjusted, the mechanical transmission drive is matched with the support limiting, the influence of the centrifugal force on the magnetic block 21 during the rotation of the magnetic roll body 2 is solved, the adjustment stability is improved, and the displacement of the magnetic block 21 is prevented.

[0053] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can still be modified or some technical features can be replaced by equivalents for the person skilled in the art, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dry magnetic separation recovery device for zinc volatilization kiln slag, comprising a magnetic separation shell (1), two magnetic separation roller bodies (2) arranged side by side in the magnetic separation shell (1), characterized in that, A shunt mechanism (3) is arranged above the middle of the two magnetic separation roller bodies (2); The shunt mechanism (3) comprises a first shunt plate (31) and a second shunt plate (32) which are in abutment with each other at one end, and the first shunt plate (31) and the second shunt plate (32) are symmetrically and obliquely arranged above the magnetic separation roller bodies (2), the first shunt plate (31) and the second shunt plate (32) are both provided with an internal groove (311), and the internal groove (311) is provided with an adjusting plate (33) which can move along the internal groove (311). A first shunt plate (31) and one of the magnetic separation roller bodies (2) form an inverted triangular storage groove, and a second shunt plate (32) and the other magnetic separation roller body (2) also form an inverted triangular storage groove, and the adjusting plate (33) moves in the internal groove (311) to adjust the distance between one end of the adjusting plate (33) and the magnetic separation roller body (2), and the distance is matched with the size of the particles to be magnetically separated.

2. The dry magnetic separation device for recovering the slag of a zinc volatilization kiln according to claim 1, characterized in that, The abutment end of the first shunt plate (31) and the second shunt plate (32) is provided with a tapered mounting plate (34).

3. The dry magnetic separation device for recovering the slag of a zinc volatilization kiln according to claim 2, characterized in that, The lower side of the two side angle surfaces of the tapered mounting plate (34) extends a cover plate which covers the shunt surface of the first shunt plate (31) and the second shunt plate (32).

4. The device for recovering the slag of a zinc volatilization kiln by dry magnetic separation according to claim 3, characterized in that, The abutment end of the first shunt plate (31) and the second shunt plate (32) is provided with a driving assembly (4) for driving the adjusting plate (33) to move.

5. The dry magnetic separation device for recovering the slag of a zinc volatilization kiln according to claim 4, characterized in that, The driving assembly (4) comprises a moving plate (41), a first linkage bent plate (42), a second linkage bent plate (43) and a driving assembly (44), the driving assembly (44) is used for driving the moving plate (41) to move up and down, the first linkage bent plate (42) and the second linkage bent plate (43) are symmetrically arranged and the vertical plate surfaces are arranged at the two ends of the moving plate (41) respectively.

6. A dry magnetic separation device for recovering the slag of a zinc volatilization kiln according to claim 5, characterized in that, The horizontal plate of the first linkage bent plate (42) and the second linkage bent plate (43) is provided with a limiting sliding groove (421), and the one end of the adjusting plate (33) is provided with a plug rod (331) which is inserted into the limiting sliding groove (421) respectively.

7. The device for recovering the slag of a zinc volatilization kiln by dry magnetic separation according to claim 1, characterized in that, The tapered mounting plate (34) is in abutment with the first shunt plate (31) and the second shunt plate (32) respectively through elastic pads (341), and the abutment end of the first shunt plate (31) and the second shunt plate (32) is provided with a driving mechanism (5) for driving the first shunt plate (31) and the second shunt plate (32) to rotate synchronously and symmetrically.

8. The dry magnetic separation device for recovering the slag of a zinc volatilization kiln according to claim 7, characterized in that, The driving mechanism (5) comprises a first shaft (51) and a second shaft (52) which are side by side and driven by a gear, the first shunt plate (31) is connected with the first shaft (51), the second shunt plate (32) is connected with the second shaft (52), and the first shaft (51) is driven by a motor.

9. The dry magnetic separation device for recovering the slag of a zinc volatilization kiln according to claim 1, characterized in that, The magnetic separation roller body (2) is provided with a plurality of magnetic blocks (21) arranged in a ring shape, and the magnetic separation roller body (2) is provided with an adjusting assembly (6) at the shaft center, and the adjusting assembly (6) drives the plurality of magnetic blocks (21) to move in a direction perpendicular to the shaft line of the magnetic separation roller body (2).

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