Metallurgical metal ore crushing and magnetic separation equipment

Abstract

The invention relates to the technical field of metallurgical equipment, in particular to metal ore crushing and magnetic separation equipment for metallurgy, a shaft groove is formed in the middle of a bottom plate of a disc-shaped shell, a first strip-shaped discharging opening and a second strip-shaped discharging opening are formed in one side and the rear portion of the shaft groove correspondingly, and a scraping plate is fixed to the position, above the second strip-shaped discharging opening, of the side wall of an inner cavity of the disc-shaped shell; a strip-shaped feeding hole is formed in one side of the middle shaft hole of the cover plate; the plurality of elastic connecting pieces are respectively connected between the edge of the cover plate and the outer edge of the top end of the disc-shaped shell; the supporting legs are used for supporting the disc-shaped shell; a discharging hopper connected with the strip-shaped feeding hole is arranged at the bottom end of the crushing part; a short shaft rotationally sleeved with the shaft groove is arranged in the middle of the central column; the magnetic attraction assemblies are fixed to the top end of the center column in the radial direction. The pushing assembly is fixed to the bottom end of the center column in the radial direction. The tops of the first discharging groove and the second discharging groove are connected to the first strip-shaped discharging opening and the second strip-shaped discharging opening respectively. A rotating motor power output shaft fixed on the top surface of the cover plate penetrates through the shaft hole and is fixedly sleeved with the top end of the short shaft; the problem that the metal ore crushing and magnetic separation efficiency is not high is well solved.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical equipment, in particular to a metal ore crushing and magnetic separation device for metallurgy. Background Art

[0002] Metallurgical metal ore refers to ore or ore minerals containing metal elements, which are usually mined from underground or on the surface through mining and mineral processing methods. There is broken metal in metal ore because metal ore usually exists in ore or ore minerals. These ores or ore minerals are often solid and relatively hard, and need to be crushed to be refined into a processable particle size. Broken metal usually has a certain metal content, but it is also mixed with other non-metallic substances, such as rocks, minerals, etc. These non-metallic substances will affect the extraction or smelting of metals. Therefore, it is necessary to separate the broken metal from the non-metallic substances to make the subsequent processes such as metal purification and smelting more efficient and economical.

[0003] At present, the magnetic metal components contained in metal ores are wrapped in the ore and cannot be directly recovered. The metal ore needs to be crushed and then separated and recycled. The common separation method is magnetic separation, which uses the property of magnetic metal components that can be attracted by magnets to separate metal ores. However, when the commonly used magnetic separation device is used to magnetically screen the ore, the magnetic metal material cannot be discharged in a timely and efficient manner after being adsorbed by the magnet, and the ore after magnetic separation is not easy to be discharged efficiently, resulting in low efficiency in metal ore crushing and magnetic separation processing. Summary of the invention

[0004] The object of the present invention is to provide a metal ore crushing and magnetic separation device for metallurgy, which is used to solve the problem of low efficiency of metal ore crushing and magnetic separation in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a metal ore crushing and magnetic separation equipment for metallurgy, wherein an axial groove is provided in the middle of the bottom plate of the disc-shaped shell, and strip-shaped discharge port 1 and strip-shaped discharge port 2 are radially provided on one side and the rear of the axial groove, respectively, and a scraper plate is radially fixed on the side wall of the inner cavity of the disc-shaped shell above the strip-shaped discharge port 2; an axial hole is provided in the middle of the cover plate, and a strip-shaped feed port is radially provided on the cover plate at a position on one side of the axial hole and away from the strip-shaped discharge port 1; a plurality of elastic connecting members are respectively connected between the edge of the cover plate and the outer edge of the top end of the disc-shaped shell; the top ends of a plurality of legs are respectively fixed to the bottom surface of the disc-shaped shell; the bottom of the crushing part A discharge hopper connected to the strip-shaped feed port is provided at the end; a short shaft whose bottom end is rotatably sleeved and matched with the shaft groove is fixedly sleeved in the middle of the center column; a plurality of magnetic components are radially fixed to the top end of the outer peripheral wall of the center column; the pushing components are radially fixed to the bottom end of the outer peripheral wall of the center column and are located below the magnetic components; the top of the discharge chute one is connected to the bottom surface of the disc-shaped shell and corresponds to the position of the strip-shaped discharge port one; the top of the discharge chute two is connected to the bottom surface of the disc-shaped shell and corresponds to the position of the strip-shaped discharge port two; the rotating motor is fixed to the middle of the top surface of the cover plate, and the power output shaft of the rotating motor passes through the shaft hole and is fixedly sleeved with the top end of the short shaft.

[0006] Preferably, a plurality of slots are evenly arranged along the circumferential direction at the top of the outer peripheral wall of the center column, countersunk holes are arranged at positions corresponding to the slots on the top surface of the center column, and the magnetic attraction assembly includes a support beam, an insert block fixed to one end of the support beam and plugged into and matched with the slots, and a bar magnet embedded in the bottom surface of the support beam, and a through hole is arranged on the top surface of the insert block at a position corresponding to the countersunk hole.

[0007] Preferably, a plurality of insertion holes are evenly arranged along the circumferential direction at the bottom end of the outer peripheral wall of the center column, a plurality of screw holes are arranged around the insertion hole, the pushing assembly comprises an arc-shaped plate whose inner wall is fitted to the outer peripheral wall of the center column, an axle rod rotatably mounted in the middle of the arc-shaped plate and rotatably sleeved with the insertion hole, a lever radially fixed to the outer peripheral wall of the axle rod, and a shovel plate having one end fixed to the outer side wall of the arc-shaped plate and parallel to the axle rod, the arc-shaped plate is provided with two through holes corresponding to the positions of the screw holes.

[0008] Preferably, the crushing part includes a horizontally arranged cylinder, a feed hopper axially connected to the top of the cylinder, crushing rollers arranged in pairs and rotatably sleeved on the front and rear sides of the middle of the two side walls of the cylinder at both ends, and a power mechanism arranged at one end of the cylinder and used to drive the two pairs of crushing rollers to rotate synchronously in opposite directions, and the top of the discharge hopper is axially connected to the bottom of the cylinder.

[0009] Preferably, an end shell is fixed to the side wall of one end of the cylinder, the central axes of the two crushing drums extend to one end of the end shells and are respectively fixed with gears that mesh with each other, and a crushing motor whose power output shaft is fixedly connected to the outer side wall of the end shell is fixed to the central axis of one of the crushing drums.

[0010] Preferably, an annular plate is provided on the outer edge of the top end of the disc-shaped shell, a plurality of through holes 1 are evenly arranged along the circumference of the annular plate, a through hole 2 corresponding to the through holes 1 is provided at the edge of the cover plate, and the top and bottom ends of the elastic connecting member are respectively sleeved in the through hole 2 and the through hole 1.

[0011] Preferably, the elastic connecting member includes a screw whose top and bottom are respectively inserted into the through hole two and the through hole one, a spring sleeved on the middle part of the screw, a pad sleeved on the top and bottom of the screw and respectively attached to the top surface of the cover plate and the bottom surface of the annular plate, and a clamping nut threadedly sleeved on the end of the screw and pressed against the pad.

[0012] Preferably, the angle between the strip-shaped discharge port 1 and the strip-shaped discharge port 2 is in the range of 5 to 90°, and the angle between the strip-shaped discharge port 1 and the strip-shaped feed port is in the range of 180 to 270°.

[0013] Preferably, the outer peripheral wall of the crushing drum is provided with a plurality of block-shaped protrusions.

[0014] Preferably, the bar magnet is a strontium ferrite magnetic material.

[0015] Preferably, an annular groove is provided in the middle of the outer peripheral wall of the central column, which is slidably engaged with the inner end of the scraper plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention relates to a metallurgical metal ore crushing and magnetic separation device in which a crushing mechanism and a magnetic separation mechanism are integrated into an integrated structure, which occupies a small space and is convenient for flexible assembly.

[0017] 2. The metal ore crushing and magnetic separation equipment for metallurgy involved in the present invention can timely magnetically absorb the crushed metal ore, and the ore fragments after magnetic separation are convenient for timely discharge, and the magnetic metal materials absorbed by the magnet can be quickly cleared and discharged, which greatly improves the efficiency of metal ore crushing and magnetic separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the disc-shaped housing of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the cover plate of the present invention; Figure 4 It is a schematic diagram of the exploded structure of the elastic connector of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the crushing part of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the central column of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the magnetic attraction component of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the pusher assembly of the present invention.

[0019] In the figure: 1-disc-shaped housing; 1.1-shaft groove; 1.2-strip discharge port 1; 1.3-strip discharge port 2; 1.4-scraper plate; 1.5-annular plate; 1.6-through hole 1; 2-cover plate; 2.1-strip feed port; 2.2-axis hole; 2.3-through hole 2; 3-elastic connector; 3.1-screw; 3.2-spring; 3.3-pad; 3.4-tightening nut; 4- Legs; 5-crushing part; 5.1-cylinder; 5.2-feeding hopper; 5.3-crushing drum; 5.4-end shell; 5.5-gear; 5.6-crushing motor; 5.7-discharging hopper; 6-center column; 6.1-short shaft; 6.2-slot; 6.3-jack; 6.4-counterbore; 6.5-screw hole; 6.6-annular groove; 7-magnetic attraction assembly; 7.1-support beam; 7.2-insertion block; 7.2.1-perforation 1; 7.3-bar magnet; 8-push assembly; 8.1-arc plate; 8.1.1-perforation 2; 8.2-shovel plate; 8.3-shaft rod; 8.4-shift rod; 9-discharging trough 1; 10-discharging chute 2; 11- Rotating motor. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-8The present invention provides a technical solution, a metal ore crushing and magnetic separation device for metallurgy, wherein a shaft groove 1.1 is provided in the middle of the bottom plate of a disc-shaped shell 1, and strip-shaped discharge port 1.2 and strip-shaped discharge port 2 1.3 are respectively provided radially on one side and the rear of the shaft groove 1.1, and a scraper plate 1.4 is fixed radially on the side wall of the inner cavity of the disc-shaped shell 1 above the strip-shaped discharge port 2 1.3; wherein an annular plate 1.5 is provided on the outer edge of the top of the disc-shaped shell 1, and a plurality of through holes 1.6 are uniformly provided on the annular plate 1.5 along the circumferential direction. The angle between the strip-shaped discharge port 1.2 and the strip-shaped discharge port 2 1.3 is in the range of 5 to 90 degrees.

[0022] An axial hole 2.2 is provided in the middle of the cover plate 2, and a strip feed port 2.1 is radially provided on the cover plate 2 at a position on one side of the axial hole 2.2 and away from the strip discharge port 1.2; wherein a through hole 2.3 corresponding to the through hole 1.6 is provided at the edge of the cover plate 2; and the angle between the strip discharge port 1.2 and the strip feed port 2.1 is 180 to 270 degrees.

[0023] A plurality of elastic connectors 3 are respectively connected between the edge of the cover plate 2 and the outer edge of the top of the disc-shaped housing 1, that is, the top and bottom ends of the elastic connectors 3 are respectively sleeved in the through hole 2.3 and the through hole 1.6. The elastic connectors 3 include a screw 3.1 whose top and bottom are respectively inserted into the through hole 2.3 and the through hole 1.6, a spring 3.2 sleeved in the middle of the screw 3.1, a pad 3.3 sleeved on the top and bottom of the screw 3.1 and respectively attached to the top surface of the cover plate 2 and the bottom surface of the annular plate 1.5, and a clamping nut 3.4 threadedly sleeved on the end of the screw 3.1 and pressed against the pad 3.3. That is, it is ensured that the top and bottom ends of the spring 3.2 are respectively supported on the bottom surface of the outer edge of the cover plate 2 and the top surface of the annular plate 1.5, so that there is a buffering effect of relative movement between the cover plate 2 and the disc-shaped housing 1.

[0024] The top ends of the plurality of legs 4 are respectively fixed to the bottom surface of the disc-shaped housing 1 ; the legs 4 are used to support the disc-shaped housing 1 to a certain height, and reserve space for connecting other components at its bottom.

[0025] The crushing part 5 comprises a horizontally arranged cylinder 5.1, a feed hopper 5.2 axially connected to the top of the cylinder 5.1, crushing rollers 5.3 arranged in pairs and rotatably sleeved at both ends on the front and rear sides of the middle of the two side walls of the cylinder 5.1, and a power mechanism arranged at one end of the cylinder 5.1 and used to drive the two pairs of crushing rollers 5.3 to rotate synchronously in the opposite direction, and the top of the discharge hopper 5.7 axially connected to the bottom of the cylinder 5.1. Among them, an end shell 5.4 is fixed to the side wall of one end of the cylinder 5.1, and the central axes of the two crushing rollers 5.3 extend to one end of the end shell 5.4 and are respectively fixedly sleeved with mutually meshing gears 5.5, and a crushing motor 5.6 whose power output shaft is fixedly connected to the central axis of one of the crushing rollers 5.3 is fixed to the outer side wall of the end shell 5.4. The outer peripheral wall of the crushing roller 5.3 is provided with a plurality of block-shaped protrusions. That is, the metal ore to be crushed and magnetically separated is fed into the cylinder 5.1 from the feed hopper 5.2, and the crushing motor 5.6 cooperates with the meshing relationship of the two gears 5.5 to drive the two crushing rollers 5.3 to rotate synchronously in opposite directions, that is, the block protrusions rotating with the crushing rollers 5.3 squeeze the ore toward the middle, so that the metal ore is crushed, and the crushed ore is discharged from the inner cavity of the cylinder 5.1 through the discharge hopper 5.7.

[0026] A short shaft 6.1 is fixedly sleeved in the middle of the center column 6, and its bottom end is rotatably sleeved and matched with the shaft groove 1.1; a plurality of slots 6.2 are evenly arranged along the circumferential direction at the top of the outer peripheral wall of the center column 6, and a countersunk hole 6.4 is arranged at the top surface of the center column 6 at the position corresponding to the slots 6.2. A plurality of insertion holes 6.3 are evenly arranged along the circumferential direction at the bottom end of the outer peripheral wall of the center column 6, and a plurality of screw holes 6.5 are arranged around the periphery of the insertion holes 6.3. Among them, each insertion hole 6.3 is respectively located directly below the slot 6.2. In addition, in order to improve the supporting effect of the scraper plate 1.4, an annular sliding groove 6.6 is arranged in the middle of the outer peripheral wall of the center column 6, which is slidably engaged and matched with the inner end of the scraper plate 1.4.

[0027] The magnetic attraction component 7 includes a support beam 7.1, an insert block 7.2 fixed to one end of the support beam 7.1 and plugged into and matched with the slot 6.2, and a bar magnet 7.3 embedded in the bottom surface of the support beam 7.1. A through hole 7.2.1 is provided on the top surface of the insert block 7.2 at a position corresponding to the countersunk hole 6.4. A hexagon socket bolt is used to fit through the countersunk hole 6.4 and the through hole 7.2.1 to firmly fix the end of the magnetic attraction component 7 to the top of the outer wall of the center column 6. The bar magnet 7.3 can be made of strontium ferrite magnetic material or the like. Among them, the bottom surface of the bar magnet 7.3 is consistent with the top height of the scraper plate 1.4 to ensure that when the magnetic attraction component 7 is rotated to the scraper plate 1.4 position, the scraper plate 1.4 can thoroughly scrape off the magnetic material adsorbed on the bottom surface of the bar magnet 7.3. In addition, the top surface of the support beam 7.1 is close to the bottom surface of the cover plate 2, so as to avoid the top surface of the support beam 7.1 supporting metal ore fragments when the support beam 7.1 passes through the strip-shaped feed opening 2.1.

[0028] The pusher assembly 8 comprises an arc plate 8.1 whose inner side wall is attached to the outer peripheral wall of the center column 6, a shaft 8.3 which is rotatably sleeved in the middle of the arc plate 8.1 and rotatably sleeved with the jack 6.3, a lever 8.4 which is radially fixed to the outer peripheral wall of the shaft 8.3, and a shovel plate 8.2 which is fixed at one end to the outer side wall of the arc plate 8.1 and parallel to the shaft 8.3. The arc plate 8.1 is provided with a second through hole 8.1.1 at a position corresponding to the screw hole 6.5. That is, a screw passes through the second through hole 8.1.1 and sleeves with the screw hole 6.5, so as to firmly fix the end of the pusher assembly 8 to the bottom end of the outer peripheral wall of the center column 6, and ensure that the bottom end of the shovel plate 8.2 is attached to the top surface of the inner cavity of the disc-shaped housing 1. Among them, the highest point of the pusher assembly 8 as a whole is lower than the bottom end of the scraper plate 1.4, so as to ensure that the pusher assembly 8 which rotates with the center column 6 can smoothly pass under the scraper plate 1.4.

[0029] The rotating motor 11 is fixed to the middle of the top surface of the cover plate 2, and the power output shaft of the rotating motor 11 passes through the shaft hole 2.2 and is fixedly connected with the top of the short shaft 6.1. That is, the rotating motor 11 drives the magnetic attraction component 7 and the pusher component 8 to rotate continuously in the inner cavity of the disc-shaped housing 1 through the central column 6.

[0030] The top of the discharge trough 9 is connected to the bottom surface of the disc-shaped shell 1 and corresponds to the position of the strip-shaped discharge port 1.2; that is, the discharge trough 9 is used to receive the magnetically separated metal ore fragments discharged from the strip-shaped discharge port 1.2.

[0031] The top of the second discharge chute 10 is connected to the bottom surface of the disc-shaped housing 1 and corresponds to the position of the second strip-shaped discharge port 1.3; that is, the second discharge chute 10 is used to receive the magnetically attracted magnetic metal material discharged from the second strip-shaped discharge port 1.3.

[0032] In summary, when the metal ore is crushed and magnetically separated, the crushing unit 5 first crushes the ore, and the crushed metal ore falls into the inner cavity of the disc-shaped shell 1 through the discharge hopper 5.7. During this period, the rotating motor 11 drives multiple magnetic suction components 7 and the pushing component 8 to continuously rotate in the inner cavity of the disc-shaped shell 1 through the central column 6. The shovel plate 8.2 pushes the metal ore fragments falling from the discharge hopper 5.7. In the process of the metal ore being pushed, the upper bar magnet 7.3 absorbs the magnetic material therein. During this period, the mechanism formed by the shaft rod 8.3 and the lever 8.4 will rotate, thereby flipping the moving metal ore fragments, so that the bar magnet 7.3 can fully absorb the magnetic material therein.

[0033] When the metal ore fragments are pushed to the position of the strip discharge port 1.2 by the shovel plate 8.2, the mixed magnetic substances have been fully adsorbed by the strip magnet 7.3 above, and then this part of the ore fragments that have completed magnetic separation will fall from the strip discharge port 1.2 into the discharge trough 9 to complete the discharge.

[0034] When the bar magnet 7.3 with magnetic material adsorbed rotates to the position of the scraper plate 1.4, the magnetic material adsorbed on its bottom surface will be completely scraped off by the scraper plate 1.4, and the scraped magnetic material will fall into the discharge trough 10 through the bar discharge port 1.3 to complete the discharge process. In a sequential cycle, each set of magnetic suction components 7 and pushing components 8 continuously passes through the bar feed port 2.1, the bar discharge port 1.2 and the bar discharge port 1.3, so as to facilitate the efficient discharge and magnetic separation of metal ore fragments.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] 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 metal ore crushing and magnetic separation equipment for metallurgy, characterized in that: include: A disc-shaped shell (1), wherein an axial groove (1.1) is provided in the middle of a bottom plate of the disc-shaped shell (1), a strip-shaped discharge port 1 (1.2) and a strip-shaped discharge port 2 (1.3) are provided radially on one side and a rear portion of the axial groove (1.1), and a scraper plate (1.4) is fixed radially on a side wall of an inner cavity of the disc-shaped shell (1) above the strip-shaped discharge port 2 (1.3); A cover plate (2), wherein an axial hole (2.2) is provided in the middle of the cover plate (2), and a strip-shaped feed opening (2.1) is provided in the radial direction at a position of the cover plate (2) located on one side of the axial hole (2.2) and away from the strip-shaped discharge opening 1 (1.2); Elastic connecting members (3), a plurality of the elastic connecting members (3) being respectively connected between the edge of the cover plate (2) and the outer edge of the top end of the disc-shaped shell (1); Support legs (4), the top ends of the plurality of support legs (4) being respectively fixed to the bottom surface of the disc-shaped housing (1); A crushing part (5), wherein a discharge hopper (5.7) connected to the strip-shaped feed opening (2.1) is provided at the bottom end of the crushing part (5); A central column (6), wherein a short shaft (6.1) is fixedly sleeved in the middle of the central column (6) and the bottom end of the short shaft (6.1) is rotatably sleeved and matched with the shaft groove (1.1); Magnetic attraction components (7), wherein a plurality of magnetic attraction components (7) are respectively fixed to the top end of the outer peripheral wall of the central column (6) in a radial direction; A material pushing assembly (8), the material pushing assembly (8) being respectively fixed to the bottom end of the outer peripheral wall of the central column (6) in the radial direction and being located below the magnetic attraction assembly (7); A discharge trough (9), the top of which is connected to the bottom surface of the disc-shaped shell (1) and corresponds to the position of the strip-shaped discharge port (1.2); A second discharge trough (10), the top of which is connected to the bottom surface of the disc-shaped shell (1) and corresponds to the position of the second strip-shaped discharge port (1.3); A rotating motor (11), the rotating motor (11) being fixed to the middle of the top surface of the cover plate (2), and the power output shaft of the rotating motor (11) passing through the shaft hole (2.2) and being fixedly sleeved with the top end of the short shaft (6.1).

2. The metal ore crushing and magnetic separation equipment for metallurgy according to claim 1, characterized in that: A plurality of slots (6.2) are evenly arranged at the top of the outer peripheral wall of the central column (6) along the circumferential direction, a countersunk hole (6.4) is arranged at a position corresponding to the slot (6.2) on the top surface of the central column (6), and the magnetic attraction component (7) comprises a support beam (7.1), an insert block (7.2) fixed to one end of the support beam (7.1) and plugged into and matched with the slot (6.2), and a bar magnet (7.3) embedded in the bottom surface of the support beam (7.1), and a through hole (7.2.1) is arranged at a position corresponding to the countersunk hole (6.4) on the top surface of the insert block (7.2).

3. The metal ore crushing and magnetic separation equipment for metallurgy according to claim 1, characterized in that: The bottom end of the outer peripheral wall of the center column (6) is evenly provided with a plurality of insertion holes (6.3) along the circumferential direction, and the periphery of the insertion hole (6.3) is provided with a plurality of screw holes (6.5). The pusher assembly (8) comprises an arc plate (8.1) whose inner side wall is fitted to the outer peripheral wall of the center column (6), a shaft rod (8.3) rotatably sleeved in the middle of the arc plate (8.1) and rotatably sleeved with the insertion hole (6.3), a lever (8.4) radially fixed to the outer peripheral wall of the shaft rod (8.3), and a shovel plate (8.2) one end of which is fixed to the outer side wall of the arc plate (8.1) and parallel to the shaft rod (8.3), and the arc plate (8.1) is provided with a second through hole (8.1.1) at a position corresponding to the screw hole (6.5).

4. The metal ore crushing and magnetic separation equipment for metallurgy according to claim 1, characterized in that: The crushing part (5) comprises a horizontally arranged cylinder (5.1), a feed hopper (5.2) axially connected to the top end of the cylinder (5.1), crushing rollers (5.3) arranged in pairs and rotatably sleeved at both ends on the front and rear sides of the middle of the two side walls of the cylinder (5.1), and a power mechanism arranged at one end of the cylinder (5.1) and used to drive the two pairs of crushing rollers (5.3) to rotate synchronously in opposite directions. The top end of the discharge hopper (5.7) is axially connected to the bottom end of the cylinder (5.1).

5. The metal ore crushing and magnetic separation equipment for metallurgy according to claim 4, characterized in that: An end shell (5.4) is fixed to a side wall at one end of the cylinder (5.1); the central axes of the two crushing rollers (5.3) extend to one end of the end shell (5.4) and are respectively fixedly sleeved with mutually meshing gears (5.5); and a crushing motor (5.6) whose power output shaft is fixedly connected to the central axis of one of the crushing rollers (5.3) is fixed to the outer side wall of the end shell (5.4).

6. The metal ore crushing and magnetic separation equipment for metallurgy according to claim 1, characterized in that: An annular plate (1.5) is provided at the outer edge of the top end of the disc-shaped housing (1), a plurality of through holes (1.6) are evenly arranged on the annular plate (1.5) along the circumferential direction, through holes (2.3) corresponding to the through holes (1.6) are provided at the edge of the cover plate (2), and the top and bottom ends of the elastic connecting member (3) are respectively sleeved in the through holes (2.3) and the through holes (1.6).

7. The metal ore crushing and magnetic separation equipment for metallurgy according to claim 6, characterized in that: The elastic connecting member (3) comprises a screw (3.1) whose top and bottom portions are respectively inserted into the second through hole (2.3) and the first through hole (1.6), a spring (3.2) sleeved on the middle of the screw (3.1), a pad (3.3) sleeved on the top and bottom portions of the screw (3.1) and respectively affixed to the top surface of the cover plate (2) and the bottom surface of the annular plate (1.5), and a clamping nut (3.4) threadedly sleeved on the end of the screw (3.1) and pressed against the pad (3.3).

8. The metal ore crushing and magnetic separation equipment for metallurgy according to claim 1, characterized in that: The included angle between the first strip-shaped discharge port (1.2) and the second strip-shaped discharge port (1.3) is in the range of 5 to 90 degrees, and the included angle between the first strip-shaped discharge port (1.2) and the strip-shaped feed port (2.1) is in the range of 180 to 270 degrees.

9. The metal ore crushing and magnetic separation equipment for metallurgy according to claim 4, characterized in that: The outer peripheral wall of the crushing drum (5.3) is provided with a plurality of block-shaped protrusions.

10. The metal ore crushing and magnetic separation equipment for metallurgy according to claim 2, characterized in that: An annular sliding groove (6.6) is provided in the middle of the outer peripheral wall of the central column (6) and is slidably engaged with the inner end of the scraper plate (1.4).

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