Magnetic separator

Abstract

The invention relates to the related technical field of mining magnetic separators, and discloses a magnetic separator which comprises a shell, a rotating drum is rotationally arranged on the upper side of the shell, a fixing rod is fixedly arranged on one side of the shell, a support is arranged on the outer wall of the fixing rod, a magnet is installed on the support, a trapezoidal plate is arranged on the lower side of the interior of the shell, and an arc-shaped plate is arranged on the upper side of the trapezoidal plate. A treatment cavity is formed between the interior of the shell and the outer wall of the trapezoidal plate, and a plurality of treatment assemblies are arranged in the treatment cavity; hard coarse-grain impurities can be extruded and crushed by utilizing a middle convex part of a top block to be in downward pressing fit with a middle groove of a bottom block, and the extruded and crushed impurities are pushed by water flow to move between a second roller on the other side and two first rollers to perform a double crushing effect; and coarse grain impurities are effectively prevented from being blocked in the treatment cavity or damaging the outer wall of the rotary drum, classified treatment according to the types of the impurities is achieved, and the effect of removing the magnetic impurities is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field related to mining magnetic separators, and more specifically, relates to a magnetic separator. Background Art

[0002] There are two working modes of magnetic separation in magnetic separators: dry and wet. Among them, wet magnetic separation is widely used in mineral separation. Common wet magnetic separation equipment usually uses a magnetic drum to absorb magnetic substances in the ore pulp. The magnetic substances are adsorbed on the outer wall of the drum and transported to the discharge port to complete the magnetic separation. However, the existing mining magnetic separators have the following defects: In the existing technology, coal is crushed, ground and then mixed with water to form a slurry. The slurry enters the separation area of the energy-saving coal magnetic separator through the ore feeding device to remove ferromagnetic impurities in the coal. However, due to large differences in material particle size (such as coarse particles) or too fast feeding speed, uneven separation may occur, fine impurities are easily washed away by water flow, and coarse impurities may settle and clog the equipment; or the mud content in the water is too high or the viscosity of the slurry is too high, which may cause the magnetic impurities to agglomerate and reduce the separation accuracy. Therefore, it is necessary to add a processing component before magnetic separation to deal with larger debris.

[0003] In the existing technology, when processing larger debris in energy-saving coal mine magnetic separators, the reciprocating motion of the cutting rod is usually used to cut the materials gathered together due to magnetism in the ore pulp, thereby improving the screening effect of the magnetic separator; however, there are larger debris in the ore pulp that are coarse impurities and magnetic impurities. Although the reciprocating motion of the cutting rod alone can cut and separate the debris that are agglomerated by magnetic impurities, when facing coarse impurities, the cutting rod has difficulty in crushing the coarse impurities, thereby affecting the sorting accuracy.

[0004] In the existing technology, since the larger debris formed by the aggregation of magnetic impurities is sticky, when the larger debris formed by the aggregation of magnetic impurities is cut in the processing component of the energy-saving coal mine magnetic separator, the cut magnetic impurities are easily attached to the processing component, thereby affecting the subsequent processing effect of the larger debris formed by the aggregation of magnetic impurities and the screening effect of the energy-saving coal mine magnetic separator.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a magnetic separator is provided to achieve a more practical and valuable purpose. Summary of the Invention

[0006] The present invention provides a magnetic separator for overcoming the above-mentioned defects in the prior art.

[0007] The purpose and effect of the magnetic separator of the present invention are achieved by the following specific technical means: A magnetic separator comprises a shell, wherein a rotating drum is rotatably provided on the upper side of the shell, a fixing rod is fixedly provided on one side of the shell, a bracket is provided on the outer wall of the fixing rod, a magnet is mounted on the bracket, a trapezoidal plate is provided on the inner lower side of the shell, an arc plate is provided on the upper side of the trapezoidal plate, a processing chamber is provided between the interior of the shell and the outer wall of the trapezoidal plate, a plurality of processing components are provided inside the processing chamber, a feeding bin is provided on one side of the shell, and an iron bin is provided on the other side of the shell; the processing component comprises a bottom block and a top block and two frames, the upper part of the bottom block is a structure with a concave middle and convex ends, the lower part of the top block is a structure with a convex middle and concave ends, a pair of first rotating shafts are rotatably provided on the inclined surface of one side where the convex parts at both ends of the bottom block are away from each other, a plurality of first rollers are provided on the outer wall of the first roller, a plurality of first crushing blocks are provided on the outer wall of the concave parts at both ends of the top block, a second rotating shaft is rotatably provided on the inclined surface on one side where the concave parts at both ends of the top block, a plurality of second rollers are provided on the outer wall of the second rotating shaft, and a plurality of second crushing blocks are provided on the outer wall of the second roller.

[0008] A further technical solution is that the bottom block is located between the two frames, the top block is located between the two frames, a plurality of first partitions are provided on the inclined surfaces of the two end convex parts of the bottom block that are away from each other, a plurality of second partitions are provided on the inclined surfaces of the two end concave parts of the top block, a plurality of first partitions and a plurality of second partitions are staggered, the second rotating shaft is located above the corresponding two first rotating shafts, the magnet is located in the rotating drum, and the outer wall of the fixed rod is in rotational contact with the rotating drum.

[0009] According to a further technical solution, a first semicircular groove is provided through the inclined surface of one side of the recessed portion at both ends of the top block, a plurality of grooves are provided at intervals on the upper side of the first semicircular groove, and a brush block is provided on the upper side of the groove.

[0010] A further technical solution is that a plurality of hydraulic chambers are provided at intervals on the upper part of the top block, a movable plate is provided for sliding in the middle of the hydraulic chamber, a movable rod is fixed at the lower end of the movable plate, both ends of the movable rod are in sliding contact with one end of two adjacent second rollers, the second rollers slide axially in the first semicircular groove, a connecting rod is provided on each side of the movable plate, a piston plate is provided at one end of the connecting rod, the piston plate slides in the hydraulic chamber, the hydraulic chamber is connected to the interior of the brush block and a connecting port is provided, and a plurality of high-pressure nozzles are provided at intervals on the lower side of the brush block.

[0011] A further technical solution is that a plurality of second semicircular grooves are provided on the inclined surface of one side where the convex parts at both ends of the bottom block are away from each other, and a plurality of first crushing blocks are arranged in a circular array on the outer wall of the first roller as a group, and each group of the first crushing blocks slides in the second semicircular groove.

[0012] A further technical solution is that a movable block is fixed on each side of the top block, and a slide groove is provided on each side of the two frames close to each other. The movable block slides vertically in the slide groove, and a hydraulic telescopic rod is installed on the lower side of the inner part of the frame. The protruding end of the hydraulic telescopic rod is provided with a first slide plate, and the first slide plate is fixedly connected to the movable block.

[0013] A further technical solution is that a second slide is provided in the slide groove for vertical sliding, the second slide is fixedly connected to the movable block, the second slide is in sliding contact with the outer wall of the second rotating shaft, a sleeve is fixedly provided at each end of the first slide, the inner wall of the sleeve is in sliding contact with the outer wall of one end of the second rotating shaft, the inner wall of the sleeve is provided with a spiral slide groove connected to the head and tail, a slider is fixed to the outer wall of one end of the second rotating shaft, and the slider slides spirally in the spiral slide groove.

[0014] A further technical solution is that a first gear is provided between one end of the sleeve and the inner wall of the frame body, the first gear is sleeved on the outer wall of one end of the second rotating shaft, the inner wall of the first gear is in sliding contact with the outer wall of one end of the second rotating shaft, a spline block is fixedly provided on one side of the inner wall of the first gear, and a spline groove is provided on the outer wall of one end of the second rotating shaft, and the spline block slides axially in the spline groove, and a first rack is fixedly provided on both side walls of the frame body, one side of the first rack is meshed with the outer wall of the first gear, and a second gear is fixedly provided on the outer wall of one end of each pair of the first rotating shafts, and a second rack is fixedly provided on the lower side of both ends of the first slide board, and both sides of the second rack are meshed with the outer wall of each pair of the second gears.

[0015] A further technical solution is that the feed bin is connected to the processing chamber and is provided with a first opening, a sorting chamber is provided between the outer wall of the rotating drum and the inner wall of the curved plate, a discharge chamber is provided between the inner wall of the trapezoidal plate and the outer wall of the curved plate, an inlet and a second opening are provided on the curved plate, the processing chamber and the sorting chamber are connected through the inlet, one end of the sorting chamber is connected to the discharge chamber through the second opening, and the other end of the sorting chamber is connected to the iron silo, a guide plate is inclined at one end of the curved plate close to the direction of the iron silo, a first water pipe is provided on the upper side of the iron silo, a one-way valve is provided on both sides of the inner side of the hydraulic chamber, and a second water pipe is provided on the side of the processing chamber close to the direction of the feed bin, and the nozzles at the upper end of the second water pipe are all facing the direction of the processing component.

[0016] A further technical solution is that two feeding pipes are symmetrically fixed on the lower side of the trapezoidal plate, and the feeding pipes extend downward to the bottom of the shell. A support frame is provided on the outside of the shell. A stepper motor and a reduction gearbox are installed on one side of the shell. The output end of the stepper motor is connected to the reduction gearbox, and the output end of the reduction gearbox is connected to one end of the rotating drum.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The magnetic separator of the present invention, through the arrangement of the first partition and the second partition, uses a plurality of first partitions and a plurality of second partitions to separate and guide the debris in the slurry, thereby preventing a large amount of debris from entering the processing component and reducing the effect of the processing component on the debris treatment. Furthermore, through the arrangement of the bottom block and the top block, due to the presence of harder coarse impurities in the debris, when the top block moves upward to expand the space between the bottom block and the top block, the second water pipe is used to spray water to push the coarse impurities into the middle groove of the bottom block; and the top block moves downward, and the middle convex portion of the top block is used to press down and fit the middle groove of the bottom block to squeeze and crush the harder coarse impurities. The squeezed and crushed impurities are moved to the second roller on the other side and the two first rollers under the action of the water flow to perform a double crushing action, effectively preventing the coarse impurities from clogging in the processing chamber or damaging the outer wall of the drum, thereby achieving classification processing according to the type of debris, which is beneficial to improving the effect of removing magnetic impurities.

[0018] The magnetic separator of the present invention is provided with a first roller, a first crushing block, a second roller, and a second crushing block. Since the rotation of the second rotating shaft drives the rotation of the plurality of second rollers and the second crushing block, and the rotation of the two first rotating shafts drives the rotation of the plurality of pairs of first rollers and the first crushing block, it is possible to perform a double crushing action on the debris located between the bottom block and the top block, thereby improving the effect of crushing the debris. The axial back-and-forth movement of the second rotating shaft drives the axial back-and-forth movement of the plurality of second rollers and the second crushing block, and the axial back-and-forth movement of the plurality of second rollers and the second crushing block is used in conjunction with the axial fixation of the plurality of pairs of first rollers and the first crushing block, so as to further improve the effect of the processing assembly on crushing and segmenting the debris, and is conducive to the rapid segmentation of larger debris that is agglomerated by magnetic impurities.

[0019] The present invention provides a magnetic separator, wherein the brush blocks are arranged so that the second rollers and the second crushing blocks can be moved back and forth axially and fixed with the brush blocks, thereby using the brush blocks to clean the second crushing blocks, reducing the adhesion of sticky debris to the second crushing blocks, thereby maintaining the crushing and segmenting effect of the second crushing blocks. Furthermore, through the arrangement of a hydraulic chamber, a movable plate, a movable rod, a connecting rod, a piston plate, a connecting port, and a high-pressure nozzle, the second rollers can move back and forth axially to drive the movable rod and the movable plate to move back and forth, and the movable plate can move back and forth to drive the two connecting rods and the piston plate to move back and forth. The piston plate can move back and forth in the hydraulic chamber, so that liquid in the discharge chamber can be sucked into the hydraulic chamber through a one-way valve, and the liquid in the hydraulic chamber is squeezed and then enters the brush blocks through the connecting port. The liquid in the brush blocks is ejected at high pressure through the high-pressure nozzles, thereby cleaning the surfaces of the second crushing blocks and performing a self-cleaning effect on the brush blocks, thereby improving the crushing and segmenting effect of the second crushing blocks and performing a self-cleaning effect on the second crushing blocks, saving energy, and improving the use of energy-saving coal mine magnetic separators. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] The present invention will be further described below with reference to the accompanying drawings and examples.

[0022] Figure 1 It is a first isometric structural diagram of the present invention; Figure 2 It is a second isometric structural diagram of the present invention; Figure 3 It is an isometric structural diagram of the internal structure of the shell in the present invention; Figure 4 It is an isometric structural diagram of the processing component in the present invention; Figure 5 This is an isometric structural diagram of the bottom block of the present invention; Figure 6 Schematic diagram of the isometric structure of the top block in the present invention; Figure 7 It is a schematic diagram of the top view of the structure of the present invention; Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure at AA in the middle; Figure 9 for Figure 7 Schematic diagram of the cross-section structure at the middle BB; Figure 10 It is a front view structural diagram of the processing component in the present invention; Figure 11 for Figure 10 The schematic diagram of the structure in the rising state is shown in the cross-section at CC in the middle; Figure 12 for Figure 10 Schematic diagram of the structure in the downward compression state in the cross-section at CC in the middle; Figure 13 for Figure 10 Schematic diagram of the cross-sectional structure at DD in the middle; Figure 14 Schematic diagram of the top view of the processing component in the present invention; Figure 15 for Figure 14 Schematic diagram of the cross-sectional structure at EE in the middle; Figure 16 for Figure 14 Schematic diagram of the cross-sectional structure at FF in the middle; Figure 17 for Figure 16 Schematic diagram of the local enlarged structure at H in the middle; Figure 18 for Figure 16 Schematic diagram of the local enlarged structure at K in the middle; Figure 19 for Figure 14 Schematic diagram of the cross-sectional structure at GG in the middle.

[0023] Description of reference numerals: Shell 10, support frame 11, feed bin 12, iron bin 13, first water pipe 14, rotating drum 15, stepping motor 16, reduction box 17, bracket 18, magnet 19, fixing rod 20, discharge pipe 21, second water pipe 22, processing chamber 23, trapezoidal plate 24, arc plate 25, inlet 26, first opening 27, second opening 28, guide plate 29, sorting chamber 30, discharge chamber 31, processing assembly 32, bottom block 33, top block 34, first partition 35, first rotating shaft 36, first roller 37, first crushing block 38, first semicircular groove 39, second Partition 40, second rotating shaft 41, second roller 42, second crushing block 43, frame 44, groove 45, brush block 46, hydraulic chamber 47, movable plate 48, connecting rod 49, piston plate 50, one-way valve 51, movable rod 52, connecting port 53, high-pressure nozzle 54, hydraulic telescopic rod 55, first slide 56, movable block 57, second slide 58, slide 59, sleeve 60, spiral slide 61, slider 62, first gear 63, spline groove 64, spline block 65, first rack 66, second gear 67, second rack 68, second semicircular groove 69. DETAILED DESCRIPTION

[0024] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0025] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0027] As attached Figure 1 To the attached Figure 19 As shown: The invention provides a magnetic separator.

[0028] Refer to the attached Figure 1 To the attached Figure 19, including a shell 10, a rotating drum 15 is rotatably provided on the upper side of the shell 10, a fixing rod 20 is fixedly provided on one side of the shell 10, a bracket 18 is provided on the outer wall of the fixing rod 20, a magnet 19 is installed on the bracket 18, a trapezoidal plate 24 is provided on the lower side of the interior of the shell 10, an arc plate 25 is provided on the upper side of the trapezoidal plate 24, a processing chamber 23 is provided between the interior of the shell 10 and the outer wall of the trapezoidal plate 24, a plurality of processing components 32 are provided inside the processing chamber 23, a feed bin 12 is provided on one side of the shell 10, and an iron bin 13 is provided on the other side of the shell 10; the processing component 32 includes a bottom block 33 and a top block Block 34 and two frames 44, the upper part of the bottom block 33 is a structure with a concave middle and convex ends, the lower part of the top block 34 is a structure with a convex middle and concave ends, a pair of first rotating shafts 36 are rotatably provided on the inclined surfaces on one side of the convex parts at both ends of the bottom block 33 away from each other, a plurality of first rollers 37 are provided on the outer wall of the first rotating shaft 36, a plurality of first crushing blocks 38 are provided on the outer wall of the first roller 37, a second rotating shaft 41 is rotatably provided on the inclined surface on one side of the concave parts at both ends of the top block 34, a plurality of second rollers 42 are provided on the outer wall of the second rotating shaft 41, and a plurality of second crushing blocks 43 are provided on the outer wall of the second roller 42.

[0029] Preferably, refer to the attached Figure 4 To the attached Figure 8 The bottom block 33 is located between the two frames 44, and the top block 34 is located between the two frames 44. A plurality of first partitions 35 are provided on the inclined surfaces of the two ends of the bottom block 33 on the side away from each other, and a plurality of second partitions 40 are provided on the inclined surfaces of the two ends of the concave parts of the top block 34 on the side. The plurality of first partitions 35 and the plurality of second partitions 40 are staggered. The second rotating shaft 41 is located above the corresponding two first rotating shafts 36. The magnet 19 is located in the rotating drum 15, and the outer wall of the fixing rod 20 is in rotational contact with the rotating drum 15.

[0030] Preferably, refer to the attached Figure 16 , Attachment Figure 17 A first semicircular groove 39 is formed through the inclined surface of one side of the concave portion at both ends of the top block 34 . A plurality of grooves 45 are provided at intervals on the upper side of the first semicircular groove 39 . A brush block 46 is provided on the upper side of the groove 45 .

[0031] Preferably, refer to the attached Figure 16 , Attachment Figure 17 A plurality of hydraulic chambers 47 are provided at intervals on the upper part of the top block 34, and a movable plate 48 is provided in the middle of the hydraulic chamber 47 for sliding. A movable rod 52 is fixed at the lower end of the movable plate 48, and the two ends of the movable rod 52 are in sliding contact with one end of the two adjacent second rollers 42 respectively. The second roller 42 slides axially in the first semicircular groove 39. A connecting rod 49 is provided on both sides of the movable plate 48, and a piston plate 50 is provided at one end of the connecting rod 49. The piston plate 50 slides in the hydraulic chamber 47, and the hydraulic chamber 47 is connected to the interior of the brush block 46 by a connecting port 53. A plurality of high-pressure nozzles 54 are provided at intervals on the lower side of the brush block 46.

[0032] Preferably, refer to the attached Figure 11 , Attachment Figure 12 A plurality of second semicircular grooves 69 are provided on the inclined surface of one side where the convex portions at both ends of the bottom block 33 are away from each other. A plurality of first crushing blocks 38 are arranged in a circular array on the outer wall of the first roller 37 as a group, and each group of first crushing blocks 38 slides in the second semicircular groove 69.

[0033] Preferably, refer to the attached Figure 13 , Attachment Figure 19 A movable block 57 is fixed on each side of the top block 34, and a slide groove 59 is provided on each side of the two frames 44 close to each other. The movable block 57 slides vertically in the slide groove 59. A hydraulic telescopic rod 55 is installed on the lower side of the inner part of the frame 44. The protruding end of the hydraulic telescopic rod 55 is provided with a first slide plate 56, and the first slide plate 56 is fixedly connected to the movable block 57.

[0034] Preferably, refer to the attached Figure 13 , Attachment Figure 16 , Attachment Figure 18 A second slide 58 is provided in the slide groove 59 for vertical sliding. The second slide 58 is fixedly connected to the movable block 57. The second slide 58 is in sliding contact with the outer wall of the second rotating shaft 41. A sleeve 60 is fixedly provided at each end of the first slide 56. The inner wall of the sleeve 60 is in sliding contact with the outer wall of one end of the second rotating shaft 41. The inner wall of the sleeve 60 is provided with a spiral slide groove 61 which is interconnected at the head and tail. A slider 62 is fixed to the outer wall of one end of the second rotating shaft 41, and the slider 62 slides spirally in the spiral slide groove 61.

[0035] Preferably, refer to the attached Figure 13 , Attachment Figure 18 A first gear 63 is provided between one end of the sleeve 60 and the inner wall of the frame 44. The first gear 63 is sleeved on the outer wall of one end of the second rotating shaft 41. The inner wall of the first gear 63 slides in contact with the outer wall of one end of the second rotating shaft 41. A spline block 65 is fixed on one side of the inner wall of the first gear 63. A spline groove 64 is provided on the outer wall of one end of the second rotating shaft 41. The spline block 65 slides axially in the spline groove 64. A first rack 66 is fixed on each side wall of the frame 44. One side of the first rack 66 is meshed with the outer wall of the first gear 63. A second gear 67 is fixedly sleeved on the outer wall of one end of each pair of first rotating shafts 36. A second rack 68 is fixed on the lower side of each end of the first slide plate 56. Both sides of the second rack 68 mesh with the outer wall of each pair of second gears 67.

[0036] Preferably, refer to the attached Figure 1 To the attached Figure 3 , Attachment Figure 8 , Attachment Figure 17The feed bin 12 is connected to the processing chamber 23 and is provided with a first opening 27. A sorting chamber 30 is provided between the outer wall of the rotating drum 15 and the inner wall of the curved plate 25. A discharge chamber 31 is provided between the inner wall of the trapezoidal plate 24 and the outer wall of the curved plate 25. An inlet 26 and a second opening 28 are provided on the curved plate 25. The processing chamber 23 is connected to the sorting chamber 30 through the inlet 26. One end of the sorting chamber 30 is connected to the discharge chamber 31 through the second opening 28. The other end of the sorting chamber 30 is connected to the iron bin 13. A guide plate 29 is inclined at one end of the curved plate 25 close to the iron bin 13. A first water pipe 14 is provided on the upper side of the iron bin 13. A one-way valve 51 is provided on both sides of the inner part of the hydraulic chamber 47, which is connected to the discharge chamber 31 respectively. A second water pipe 22 is provided on the side of the processing chamber 23 close to the feed bin 12, and the nozzles at the upper ends of the second water pipe 22 are all facing the direction of the processing component 32.

[0037] Preferably, refer to the attached Figure 1 , Attachment Figure 8 , Attachment Figure 9 Two feeding pipes 21 are symmetrically fixed on the lower side of the trapezoidal plate 24, and the feeding pipes 21 extend downward to the bottom of the shell 10. A support frame 11 is provided on the outside of the shell 10. A stepper motor 16 and a reduction box 17 are installed on one side of the shell 10. The output end of the stepper motor 16 is connected to the reduction box 17, and the output end of the reduction box 17 is connected to one end of the rotating drum 15.

[0038] Specific use of the present invention: First, the staff transports the slurry into the feed bin 12. The slurry in the feed bin 12 falls into the processing chamber 23 through the first opening 27. Since there are coarse impurities and large debris aggregated with magnetic impurities in the slurry, in order to improve the screening effect of the energy-saving coal mine magnetic separator, it is necessary to use a processing component to process the large debris. The control system controls several processing components 32 to start. The processing components 32 start to control the two hydraulic telescopic rods 55 to repeatedly extend and retract. The hydraulic telescopic rods 55 are used to extend and retract to drive the first slide 56 up and down. The first slide 56 moves up and down to drive the movable block 57 and the top block 34 to move up and down. The up and down movement of the first slide 56 drives the two sleeves 60 and the second rotating shaft 41 to move up and down, so that the two second rotating shafts 41 and the top block 34 move up and down synchronously. The up and down movement of the second rotating shaft 41 drives the first gear 63 to move up and down. Since the outer wall of the first gear 63 is engaged with one side of the first rack 66, the up and down movement of the first gear 63 is fixed with the first rack 66, thereby causing the first gear 63 to rotate. The rotation of the first gear 63 drives the rotation of the spline block 65. Since the spline block 65 slides axially within the spline groove 64, the spline block 65 cooperates with the spline groove 64, and the rotation of the first gear 63 drives the rotation of the second rotating shaft 41. The rotation of the second rotating shaft 41 drives the slider 62. The slider 62 is guided by the spiral groove 61, causing the second rotating shaft 41 to move back and forth axially. Therefore, the second rotating shaft 41 rotates and moves back and forth axially.

[0039] At the same time, the first slide 56 moves up and down, driving the two second racks 68 to move up and down. Since the two sides of the second rack 68 are respectively engaged with the outer walls of the two second gears 67, the second rack 68 moves up and down, driving the two second gears 67 and the first rotating shaft 36 to rotate.

[0040] Next, the control system controls the second water pipe 22 to spray water, which propels the slurry into the processing assemblies 32. The first baffles 35 and second baffles 40 separate and guide debris in the slurry, preventing large amounts of debris from entering the processing assemblies 32 and minimizing the impact on the debris processing efficiency of the processing assemblies 32. The rotation of the second rotating shaft 41 drives the second rollers 42 and second crushing blocks 43, which in turn rotate in conjunction with the two first rotating shafts 36, driving the pairs of first rollers 37 and first crushing blocks 38. This allows for a dual crushing effect on debris located between the bottom block 33 and the top block 34, improving the debris crushing and cutting efficiency.

[0041] At the same time, the axial back-and-forth movement of the second rotating shaft 41 drives the plurality of second rollers 42 and the second crushing blocks 43 to move axially back and forth. The axial back-and-forth movement of the plurality of second rollers 42 and the second crushing blocks 43 is coordinated with the axial fixation of the plurality of first rollers 37 and the first crushing blocks 38, so as to further improve the effect of the processing component 32 on crushing and dividing the debris, which is beneficial to quickly divide the larger debris that is agglomerated by magnetic impurities, and can effectively remove the magnetic impurities.

[0042] At the same time, the second rollers 42 and the second crushing blocks 43 move axially back and forth and are fixed with the brush blocks 46, so that the brush blocks 46 are used to clean the second crushing blocks 43, reducing the sticky debris adhering to the second crushing blocks 43, thereby maintaining the crushing and segmenting effect of the second crushing blocks 43. The axial reciprocating movement of the plurality of second rollers 42 drives the movable rod 52 and the movable plate 48 to move back and forth. The reciprocating movement of the movable plate 48 drives the two connecting rods 49 and the piston plate 50 to move back and forth. The piston plate 50 moves back and forth within the hydraulic chamber 47, thereby drawing liquid from the discharge chamber 31 into the hydraulic chamber 47 through the one-way valve 51. The liquid in the hydraulic chamber 47 is squeezed and then enters the brush block 46 through the connection port 53. The liquid in the brush block 46 is ejected at high pressure through the plurality of high-pressure nozzles 54, thereby cleaning the surfaces of the plurality of second crushing blocks 43 and achieving a self-cleaning effect on the brush block 46. This improves the crushing and segmenting effect of the plurality of second crushing blocks 43 while also achieving a self-cleaning effect on the plurality of second crushing blocks 43, thereby saving energy and improving the use of the energy-saving coal mine magnetic separator. The one-way valve 51 only allows liquid to pass.

[0043] Then, due to the presence of harder coarse-grained impurities in the debris, when the top block 34 moves upward to expand the space between the bottom block 33 and the top block 34, the second water pipe 22 is used to spray water to push the coarse-grained impurities into the middle groove of the bottom block 33; and the top block 34 moves downward, and the middle convex portion of the top block 34 is used to press down and fit the middle groove of the bottom block 33 to squeeze and crush the harder coarse-grained impurities. The squeezed and crushed impurities are moved to the second roller 42 and the two first rollers 37 on the other side under the action of the water flow for double crushing, which effectively prevents the coarse-grained impurities from being blocked in the processing chamber 23 or damaging the outer wall of the drum 15, thereby realizing classified processing according to the type of debris, which is beneficial to improving the effect of removing magnetic impurities.

[0044] The slurry in the processing chamber 23 then moves through the inlet 26 into the sorting chamber 30. The stepper motor 16 is activated to rotate the output end of the reduction gearbox 17, which in turn rotates the drum 15. The rotation of the drum 15, in conjunction with the magnet 19, attracts magnetic impurities to the surface of the drum 15 and moves them to the top of the iron silo 13. As the magnetic impurities move above the guide plate 29, they gradually lose contact with the magnet 19 and, guided by the guide plate 29, fall into the iron silo 13. Water is then sprayed onto the surface of the drum 15 using the first water pipe 14, cleaning it.

[0045] Finally, the slurry in the separation chamber 30 follows the water through the second opening 28 and falls into the discharge chamber 31 , and then flows out through the discharge pipe 21 along with the water, thereby completing the removal of magnetic impurities in the slurry.

[0046] A magnetic separator of the present invention, through the arrangement of a first partition 35 and a second partition 40, utilizes a plurality of first partitions 35 and a plurality of second partitions 40 to separate and guide debris in the ore pulp, thereby preventing a large amount of debris from entering the processing component 32 and reducing the effect of the processing component 32 on the debris treatment. Through the arrangement of the bottom block 33 and the top block 34, since there are harder coarse impurities in the debris, when the top block 34 moves upward to expand the space between the bottom block 33 and the top block 34, the second water pipe 22 is used to spray water to push the coarse impurities into the middle groove of the bottom block 33; and the top block 34 moves downward, and the middle convex part of the top block 34 is used to press down and fit the middle groove of the bottom block 33 to squeeze and crush the harder coarse impurities. The extruded and crushed impurities are moved to the second roller 42 and the two first rollers 37 on the other side under the action of the water flow for double crushing, which effectively prevents the coarse impurities from being blocked in the processing chamber 23 or damaging the outer wall of the drum 15, thereby realizing classified processing according to the type of debris, which is beneficial to improving the effect of removing magnetic impurities.

[0047] The magnetic separator of the present invention, through the arrangement of the first roller 37, the first crushing block 38, the second roller 42, and the second crushing block 43, can achieve a double crushing effect on debris located between the bottom block 33 and the top block 34 by rotating the second rotating shaft 41, driving the plurality of second rollers 42 and the second crushing block 43 to rotate, in conjunction with the rotation of the two first rotating shafts 36, driving the plurality of pairs of first rollers 37 and the first crushing block 38 to rotate, thereby improving the debris crushing effect. Furthermore, the axial back-and-forth movement of the second rotating shaft 41 drives the plurality of second rollers 42 and the second crushing block 43 to move back and forth axially, and the axial back-and-forth movement of the plurality of second rollers 42 and the second crushing block 43 is used in conjunction with the axial fixation of the plurality of pairs of first rollers 37 and the first crushing block 38, so as to further improve the debris crushing and segmenting effect of the processing component 32, thereby facilitating the rapid segmentation of larger debris containing aggregated magnetic impurities.

[0048] A magnetic separator of the present invention, through the setting of brush blocks 46, a number of second rollers 42 and second crushing blocks 43 move back and forth axially and are fixed with a number of brush blocks 46, so that the second crushing blocks 43 are cleaned by the number of brush blocks 46, reducing the adhesion of sticky debris to the number of second crushing blocks 43, thereby maintaining the crushing and segmentation effect of the number of second crushing blocks 43. Then, through the arrangement of the hydraulic chamber 47, the movable plate 48, the movable rod 52, the connecting rod 49, the piston plate 50, the connecting port 53 and the high-pressure nozzle 54, the second rollers 42 move back and forth axially, driving the movable rod 52 and the movable plate 48 to move back and forth. The movable plate 48 moves back and forth, driving the two connecting rods 49 and the piston plate 50 to move back and forth. By using the piston plate 50 to move back and forth in the hydraulic chamber 47, the liquid in the discharge chamber 31 can be sucked into the hydraulic chamber 47 through the one-way valve 51, and the liquid in the hydraulic chamber 47 is squeezed and then enters the brush block 46 through the connecting port 53. The liquid in the brush block 46 is ejected at high pressure through the high-pressure nozzles 54, thereby cleaning the surfaces of the second crushing blocks 43 and self-cleaning the brush blocks 46, so as to improve the crushing and segmentation effect of the second crushing blocks 43 while performing self-cleaning on the second crushing blocks 43, saving energy and improving the use of energy-saving coal mine magnetic separators.

[0049] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A magnetic separator, characterized in that: The invention comprises a shell (10), wherein a rotating drum (15) is rotatably provided on the upper side of the shell (10), a fixing rod (20) is fixedly provided on one side of the shell (10), a bracket (18) is provided on the outer wall of the fixing rod (20), a magnet (19) is mounted on the bracket (18), a trapezoidal plate (24) is provided on the lower side of the interior of the shell (10), an arc-shaped plate (25) is provided on the upper side of the trapezoidal plate (24), a processing chamber (23) is provided between the interior of the shell (10) and the outer wall of the trapezoidal plate (24), a plurality of processing components (32) are provided inside the processing chamber (23), a feed bin (12) is provided on one side of the shell (10), and an iron bin (13) is provided on the other side of the shell (10); The processing assembly (32) comprises a bottom block (33), a top block (34) and two frames (44). The upper portion of the bottom block (33) is a structure with a concave middle and convex ends, and the lower portion of the top block (34) is a structure with a convex middle and concave ends. A pair of first rotating shafts (36) are rotatably provided on the inclined surfaces of the two convex ends of the bottom block (33) away from each other. The outer wall of the first rotating shaft (36) is provided with a plurality of first rollers (37), and the outer wall of the first roller (37) is provided with a plurality of first crushing blocks (38). A second rotating shaft (41) is rotatably provided on the inclined surfaces of the two concave ends of the top block (34). The outer wall of the second rotating shaft (41) is provided with a plurality of second rollers (42), and the outer wall of the second roller (42) is provided with a plurality of second crushing blocks (43).

2. A magnetic separator according to claim 1, characterized in that: The bottom block (33) is located between the two frames (44), and the top block (34) is located between the two frames (44). A plurality of first partitions (35) are provided on the inclined surfaces of the two convex parts of the bottom block (33) that are away from each other. A plurality of second partitions (40) are provided on the inclined surfaces of the two concave parts of the top block (34). The plurality of first partitions (35) and the plurality of second partitions (40) are staggered. The second rotating shaft (41) is located above the corresponding two first rotating shafts (36). The magnet (19) is located in the rotating drum (15), and the outer wall of the fixing rod (20) is in rotational contact with the rotating drum (15).

3. A magnetic separator according to claim 1, characterized in that: A first semicircular groove (39) is provided through the inclined surface of one side of the concave portion at both ends of the top block (34), a plurality of grooves (45) are provided at intervals on the upper side of the first semicircular groove (39), and a brush block (46) is provided on the upper side of the groove (45).

4. A magnetic separator according to claim 3, characterized in that: A plurality of hydraulic chambers (47) are provided at intervals on the upper part of the top block (34), a movable plate (48) is provided in the middle of the hydraulic chamber (47) for sliding, a movable rod (52) is fixed at the lower end of the movable plate (48), the two ends of the movable rod (52) are respectively in sliding contact with one end of two adjacent second rollers (42), the second roller (42) slides axially in the first semicircular groove (39), a connecting rod (49) is provided on both sides of the movable plate (48), a piston plate (50) is provided at one end of the connecting rod (49), the piston plate (50) slides in the hydraulic chamber (47), the hydraulic chamber (47) is connected to the interior of the brush block (46) and a connecting port (53) is provided, and a plurality of high-pressure nozzles (54) are provided at intervals on the lower side of the brush block (46).

5. A magnetic separator according to claim 1, characterized in that: A plurality of second semicircular grooves (69) are provided on the inclined surface of one side of the convex portions at both ends of the bottom block (33) away from each other. A plurality of the first crushing blocks (38) are arranged in a circular array on the outer wall of the first roller (37) as a group, and each group of the first crushing blocks (38) slides in the second semicircular groove (69).

6. A magnetic separator according to claim 1, characterized in that: A movable block (57) is fixedly provided on both sides of the top block (34), and a slide groove (59) is provided on each side of the two frames (44) close to each other. The movable block (57) slides vertically in the slide groove (59). A hydraulic telescopic rod (55) is installed on the lower side of the interior of the frame (44), and a first slide plate (56) is provided at the protruding end of the hydraulic telescopic rod (55). The first slide plate (56) is fixedly connected to the movable block (57).

7. A magnetic separator according to claim 6, characterized in that: A second slide plate (58) is provided in the slide groove (59) for vertical sliding. The second slide plate (58) is fixedly connected to the movable block (57). The second slide plate (58) is in sliding contact with the outer wall of the second rotating shaft (41). A sleeve (60) is fixedly provided at each end of the first slide plate (56). The inner wall of the sleeve (60) is in sliding contact with the outer wall of one end of the second rotating shaft (41). The inner wall of the sleeve (60) is provided with a spiral slide groove (61) that is interconnected at the head and tail. A slider (62) is fixedly provided on the outer wall of one end of the second rotating shaft (41). The slider (62) slides spirally in the spiral slide groove (61).

8. A magnetic separator according to claim 7, characterized in that: A first gear (63) is provided between one end of the sleeve (60) and the inner wall of the frame (44), the first gear (63) is sleeved on the outer wall of one end of the second rotating shaft (41), the inner wall of the first gear (63) is in sliding contact with the outer wall of one end of the second rotating shaft (41), a spline block (65) is fixedly provided on one side of the inner wall of the first gear (63), and a spline groove (64) is provided on the outer wall of one end of the second rotating shaft (41), the spline block (65) slides axially in the spline groove (64), and a first rack (66) is fixedly provided on both side walls of the frame (44), one side of the first rack (66) is meshed with the outer wall of the first gear (63), and a second gear (67) is fixedly provided on the outer wall of one end of each pair of the first rotating shafts (36), and a second rack (68) is fixedly provided on the lower side of both ends of the first slide plate (56), and both sides of the second rack (68) are meshed with the outer wall of each pair of the second gears (67).

9. A magnetic separator according to claim 4, characterized in that: The feed bin (12) is connected to the processing chamber (23) and is provided with a first opening (27); a sorting chamber (30) is provided between the outer wall of the drum (15) and the inner wall of the arc plate (25); a discharge chamber (31) is provided between the inner wall of the trapezoidal plate (24) and the outer wall of the arc plate (25); an inlet (26) and a second opening (28) are provided on the arc plate (25); the processing chamber (23) and the sorting chamber (30) are connected through the inlet (26); one end of the sorting chamber (30) is connected to the discharge chamber (31) through the second opening ( 28), the other end of the sorting chamber (30) is connected to the iron silo (13), the end of the arc plate (25) close to the iron silo (13) is inclinedly provided with a guide plate (29), the upper side of the iron silo (13) is provided with a first water pipe (14), the inner sides of the hydraulic chamber (47) are respectively connected to the discharge chamber (31) and provided with a one-way valve (51), the processing chamber (23) is close to the side of the feed silo (12) and the upper end nozzles of the second water pipe (22) are all oriented towards the processing component (32).

10. The magnetic separator according to claim 1, characterized in that: Two feeding tubes (21) are symmetrically fixed on the lower side of the trapezoidal plate (24), and the feeding tubes (21) extend downward to the bottom of the shell (10). A support frame (11) is provided on the outside of the shell (10). A stepping motor (16) and a reduction box (17) are installed on one side of the shell (10). The output end of the stepping motor (16) is connected to the reduction box (17), and the output end of the reduction box (17) is connected to one end of the rotating drum (15).

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