CN219150377U - Magnetite high-yield preselection device - Google Patents
Magnetite high-yield preselection device Download PDFInfo
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- CN219150377U CN219150377U CN202223391672.9U CN202223391672U CN219150377U CN 219150377 U CN219150377 U CN 219150377U CN 202223391672 U CN202223391672 U CN 202223391672U CN 219150377 U CN219150377 U CN 219150377U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model relates to the technical field of crushing-magnetic separation of concentrating mills, in particular to a magnetite high-yield preselection device. The device comprises a frame, a crusher, a rougher, a scavenger, a collecting hopper, a feed box and a discharge box, wherein the crusher is a crushing unit, the rougher and the scavenger are combined into a dry separation unit, and the discharge box is a mineral discharge unit; the crusher, the rougher and the scavenger are sequentially fixedly connected onto the frame from top to bottom, the collecting hopper is positioned at the bottom of the discharge port of the crusher, the feed box is fixedly connected at the bottom of the collecting hopper, and the discharge box is fixedly connected at the bottom of the feed box; the magnetic separation roller of the rougher is positioned in the feed box and below one side of the outlet of the collecting hopper; the scavenging separation plate of the scavenging machine is positioned in the feed box, positioned below the other side of the collecting hopper outlet and positioned below the magnetic separation roller. The high recovery rate of the magnetic body can be ensured, the crushing operation and the large-granularity dry separation waste throwing operation are integrated, and the equipment and factory investment is reduced.
Description
Technical Field
The utility model relates to the technical field of crushing-magnetic separation of concentrating mills, in particular to a magnetite high-yield preselection device.
Background
Currently, most magnetite ores have low ore grades, mostly between 25% and 35%. The ore produced contains not only a large amount of gangue but also mixed surrounding rock. The gangue and surrounding rock are pre-selected and thrown out after the mined ore is coarsely crushed, so that the processing amount of subsequent crushing and ore grinding can be greatly reduced, and the energy consumption, equipment and capital investment of subsequent related operations are greatly reduced.
The gyratory crusher has the characteristics of large single-machine treatment capacity and strong adaptability to granularity and moisture of materials, so that the gyratory crusher is widely applied to surface mines. The gyratory crusher is a circular ring peripheral type ore discharge at the bottom, and the ore discharge mode cannot realize strip feeding of a traditional magnetic separation roller, so that materials cannot be directly fed into the magnetic roller of the belt type dry separator, and one-stop integration of the magnetic roller and the gyratory crusher cannot be realized so as to reduce equipment and factory investment.
The existing magnetite crushed products are thrown waste by adopting an independently arranged dry separation belt conveyor, the equipment is large, an independent dry separation workshop is required to be arranged, so that the equipment investment is large, the workshop investment is large, and the operation management is complex and the cost is high.
For the magnetite ore with lower grade, the main assessment index is to ensure the recovery rate of the magnetic iron during large-granularity dry separation so as to ensure that most of the magnetic iron can enter the subsequent grinding and separation process, and the recovery rate of the finally separated iron concentrate can reach more than 75% under the condition of full grinding and separation. Therefore, the main control index of the large-granularity tail flick of the gyratory crushed coarse crushed product is to ensure the recovery rate of the magnetic body of the large-granularity pre-selected concentrate.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a magnetite high-yield preselection device which can ensure high recovery rate of magnetic bodies, integrates crushing operation and large-granularity dry separation waste throwing operation, and reduces equipment and factory investment.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a magnetite high-yield preselection device comprises a frame, a crusher, a rougher, a scavenger, a collecting hopper, a feed box and a discharge box, wherein the crusher is a crushing unit, the rougher and the scavenger are combined into a dry separation unit, and the discharge box is a mineral discharge unit; the crusher, the rougher and the scavenger are sequentially fixedly connected onto the frame from top to bottom, the collecting hopper is positioned at the bottom of the discharge port of the crusher, the feed box is fixedly connected at the bottom of the collecting hopper, and the discharge box is fixedly connected at the bottom of the feed box; the magnetic separation roller of the rougher is positioned in the feed box and below one side of the outlet of the collecting hopper; the scavenging separation plate of the scavenging machine is positioned in the feed box, positioned below the other side of the collecting hopper outlet and positioned below the magnetic separation roller.
Further, the frame comprises vertical upright posts, a horizontal upper layer platform, a middle layer platform and a lower layer platform, wherein the upper layer platform, the middle layer platform and the lower layer platform are fixedly connected between the upright posts; the crusher is fixedly connected to the upper layer platform through bolts, the rougher is fixedly connected to the middle layer platform through bolts, and the scavenger is fixedly connected to the lower layer platform through bolts.
Further, the crusher is a gyratory crusher.
Further, the rougher comprises a magnetic separation roller and a rougher motor, and the rougher motor is connected with the magnetic separation roller and drives the magnetic separation roller to rotate; the roller shaft of the magnetic separation roller is arranged on a bearing, the bearing is arranged in a bearing seat, the bearing seat is fixedly connected on a supporting beam, and the supporting beam is fixedly connected on a feeding box.
Further, a permanent magnet system with a wrap angle of 110-130 degrees is arranged in one side of the magnetic separation roller facing the material flow, the magnetic system is fan-shaped and is arranged by taking the horizontal axis of the separation roller as a central line, and the magnetic system is not substantially connected with the magnetic separation roller and is a fixed non-rotating body.
Further, the surface of the magnetic separation roller is provided with a wear-resistant rubber layer with the thickness of 30 mm-80 mm, and the magnetic field intensity of the roller surface is 400 mT-600 mT.
Further, the scavenging machine comprises a scavenging separation plate, a scavenging machine motor, a transmission roller and a carrier roller group; the sweeping and selecting plate is vertically and fixedly connected between the front side plate and the rear side plate of the feed box, the driving belt bypasses the carrier roller group, the sweeping and selecting plate and the driving roller, the sweeping and selecting motor adopts a variable-frequency speed regulating motor, and the sweeping and selecting motor is connected with the driving roller and drives the driving roller to rotate, so that the driving belt is driven to operate.
Further, the carrier roller group comprises a first redirecting carrier roller, a second redirecting carrier roller, a third redirecting carrier roller and a fourth redirecting carrier roller, the first redirecting carrier roller and the second redirecting carrier roller are mutually parallel, the third redirecting carrier roller and the fourth redirecting carrier roller are mutually parallel, the first redirecting carrier roller and the second redirecting carrier roller are mutually parallel and are positioned below, the second redirecting carrier roller and the third redirecting carrier roller are positioned in the feed box, and the second redirecting carrier roller and the third redirecting carrier roller are positioned outside the scanning sorting plate.
Further, the scavenging separation plate consists of a vertical plate and an inclined plate, wherein the inclined plate is positioned below the vertical plate, and the angle between the vertical plate and the inclined plate is 110-130 degrees.
Further, the material discharging box comprises a box body and partition plates, wherein the box body is rectangular, and the two partition plates are mutually parallel and vertically fixedly connected between the front side plate and the rear side plate of the box body to form a waste stone material discharging opening and an ore material discharging opening positioned on two sides of the waste stone material discharging opening.
Compared with the prior art, the utility model has the beneficial effects that:
1) The utility model is provided with a crushing unit, a dry separation unit and a ore discharging unit from top to bottom, and the three units are connected with a common integral frame to form a whole. Therefore, the gyratory crushing and dry separation operation is integrated into one device, and compared with the traditional gyratory crushing and dry separation operation which adopts two devices and is independently arranged in different workshops, the utility model has the advantages of small quantity of devices, small equipment purchase and investment, low operation and maintenance cost and capability of greatly increasing the economic benefit of a concentrating mill.
2) The pre-selected feed is the low-grade magnetite ore of the finely-crushed product in magnetite, and a large amount of waste rocks and surrounding rocks can be thrown out by throwing the tail of the magnetite ore, so that the processing capacity of the subsequent grinding and selecting operation is greatly reduced, the subsequent equipment and factory investment is reduced, and the energy consumption and the operation cost are reduced.
3) The collecting hopper realizes the cluster type distribution of broken products vertically downwards from the strip-shaped outlet along the circumferential distribution direction, thereby reducing the vertical width of the materials to 200-400 mm, and effectively avoiding the situation that the magnetic separation materials cannot be adsorbed due to overlarge separation width of the materials and overlarge field intensity reduction when the boundary materials are too far away from the magnetic separation roller. The separation environment of the magnetic separation roller is favorably optimized, so that the high recovery rate of the magnetic iron is favorably ensured.
4) The material falling speed is relatively low during roughing, and the material is separated by a magnetic separation roller; then after the magnetic separation roller, the material is separated by a separation plate at a stage with higher falling speed, and the separation plate is longer in length, so that sufficient separation time for scavenging is ensured. The method adopts different sorting equipment at the extreme of different material falling speeds, so that sufficient sorting time is ensured, and the sorting effect is ensured.
5) The field intensity of roughing is 400 mT-600 mT, and the adoption of stronger field intensity ensures the full recovery of most of magnetic separation minerals. The scavenging field intensity is 1.1-1.2 times of the roughing field intensity, so that partial ore-gangue intergrowth with weaker magnetism and a small amount of ore wrapped and mixed in the roughing waste stone are recovered again by utilizing scavenging. The combination mode of roughing and scavenging ensures the high recovery rate of the magnetic iron.
6) The roughing and the scavenging of the device are respectively arranged at two sides of the material flow, so that the width range of the whole material flow is in the magnetic field range of roughing and scavenging, the depth preselection of the full width range is realized, and the high recovery rate of the magnetic iron is ensured.
7) The surface of the magnetic separation roller is provided with the wear-resistant rubber layer with the thickness of 30-80 mm, so that the service life of the magnetic separation roller is favorably ensured, the maintenance frequency of the magnetic separation roller is reduced, and the equipment operation rate is improved.
8) The utility model changes the transmission of the conveyor belt into downward transmission after the conveyor belt horizontally passes out of the feed box through the action of the direction changing carrier roller, and the vast majority of the conveyor belt, the transmission roller and the transmission part are all arranged on one side of the feed box and the discharge box, thereby being beneficial to the rapid overhaul of the components and having low operation and maintenance cost. And the arrangement height difference between the feeding box and the discharging part is fully utilized in a way of downward arrangement close to the box body, so that the integration of the common rack is realized, the equipment arrangement is more compact, and the integration level is high.
9) The scavenging unit of the utility model forms the adsorption of the magnetic ore on the vertical section of the separation plate by covering the conveyor belt on the separation plate, realizes the movement of the magnetic ore from the vertical direction to the near horizontal direction by the arc folding of 110-130 degrees, then moves to the rear of the folded plate along with the conveyor belt, and is unloaded to one side of the ore of the discharging part under the action of single inertia.
10 The sweeping unit device realizes the switching of the conveying direction of the conveying belt through the direction-changing carrier roller group, and the carrier roller steering mode is beneficial to saving energy and reducing the abrasion of the conveying belt.
11 The motors of the rougher and the scavenger are both variable-frequency speed regulating motors, so that the belt speed of the conveyor belt can be regulated, the inertial kinetic energy of the adsorbed magnetic ore during unloading is regulated, the unloading track of the magnetic ore is changed, and the proportion of materials at two sides of the separation plate is regulated, so that the recovery rate of the magnetic iron in the dry separation concentrate is ensured to the greatest extent.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
In the figure: 11-upper layer platform 12-middle layer platform 13-lower layer platform 14-upright post 2-crusher 31-magnetic separation roller 32-rougher motor 33-bearing seat 34-supporting beam 35-magnetic system 41-first direction-changing carrier roller 42-second direction-changing carrier roller 43-third direction-changing carrier roller 44-fourth direction-changing carrier roller 45-sweeping and separating plate 451-vertical plate 452-sloping plate 46-sweeping and separating motor 47-driving roller 48-conveyor belt 5-collecting hopper 51-base 6-feeding box 71-partition plate 72-waste rock discharge opening 73-ore discharge opening
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; terminology
The positional or positional relationships indicated by "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc., are based on the positional or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
[ example ]
As shown in figure 1, the magnetite high-yield preselection device comprises a frame, a crusher 2, a rougher, a scavenger, a collecting hopper 5, a feed box 6 and a discharge box 7, wherein the crusher is a crushing unit, the rougher and the scavenger are combined into a dry separation unit, and the discharge box 7 is a mineral discharge unit.
The frame comprises vertical upright posts 14, an upper layer platform 11, a middle layer platform 12 and a lower layer platform 13, wherein the upper layer platform 11, the middle layer platform 12 and the lower layer platform 13 are horizontally arranged, and are fixedly connected between the vertical upright posts 14 from top to bottom in sequence.
The crusher 2 is an existing product and adopts a gyratory crusher. The motor and the base of the crusher 2 are fixedly connected with the top surface of the upper-layer platform 11 through bolts.
The collecting hopper 5 is a box body with upper and lower openings, the upper opening is a round opening, and the upper opening is positioned at the outer side 50-100 mm of the circumferential discharge opening of the gyratory crusher 2. The upper opening is downwards externally connected with a receiving section with a square section until the receiving section is connected with the lower opening, the vertical section is a rectangular square box, and the lower opening of the square box is a rectangular opening with the width of 200-400 mm and the length of 1000-2000 mm. The collecting hopper 5 is connected with the bottom surface of the upper platform 11 of the frame through a base 51 arranged on the outer side of the collecting hopper.
The feed box 6 is a square box body arranged below the collecting hopper 5 and is in flange connection with the collecting hopper 5.
The rougher comprises a magnetic separation roller 31 and a rougher motor 32, the rougher motor 32 adopts a variable-frequency speed-regulating motor, and the rougher motor 32 is connected with the magnetic separation roller 31 and drives the magnetic separation roller to rotate. The roller shaft of the magnetic separation roller 31 is arranged on a bearing, the bearing is arranged in a bearing seat 33, the bearing seat 33 is fixedly connected on a supporting beam 34, and the supporting beam 34 is fixedly connected on the feed box 6.
The magnetic separation roller 31 is provided with a permanent magnet system 35 with a wrap angle of 110-130 degrees at one side facing the material flow, the magnetic system 35 is fan-shaped and is arranged by taking the horizontal axis of the magnetic separation roller 31 as a central line, and the magnetic system 35 is not substantially connected with the magnetic separation roller 31 and is a fixed non-rotating body.
The surface of the magnetic separation roller 31 is provided with a 30-80 mm wear-resistant rubber layer, and the magnetic field intensity of the roller surface is 400-600 mT.
The scavenging machine comprises a scavenging separating plate 45, a scavenging motor 46, a transmission drum 47, a first redirecting carrier roller 41, a second redirecting carrier roller 42, a third redirecting carrier roller 43 and a fourth redirecting carrier roller 44. The scan sorting plate 45 is composed of a vertical plate 451 and a sloping plate 452, the sloping plate 452 being located below the vertical plate 451, the angle between the vertical plate 451 and the sloping plate 452 being 110 to 130 °.
The scavenging machine motor 46 and the transmission roller 47 are fixedly connected to the lower layer platform 13, the scavenging machine motor 46 is a variable frequency speed regulating motor, and the scavenging machine motor 46 is connected with the transmission roller 47 and drives the transmission roller 47 to rotate, so that a conveyor belt 48 arranged on the transmission roller 47 is driven to operate. The cleaning and sorting plate 45 is fixedly connected between the front side plate and the rear side plate of the feed box 6.
The first redirecting carrier roller 41 and the second redirecting carrier roller 42 are fixedly connected on the bottom surface of the middle layer platform 12 in parallel, the third redirecting carrier roller 43 and the fourth redirecting carrier roller 44 are fixedly connected on the top surface of the middle layer platform 12 in parallel, the vertical positions of the second redirecting carrier roller 42 and the third redirecting carrier roller 43 are the same, the second redirecting carrier roller 42 and the third redirecting carrier roller 43 are positioned in the feeding box 6 and positioned on the left side of the sweeping and sorting plate 45, the first redirecting carrier roller 41 is positioned on the left side of the second redirecting carrier roller 42, and the fourth redirecting carrier roller 44 is positioned on the left side of the third redirecting carrier roller 43.
The conveyor belt 48 is sequentially sleeved on the transmission drum 47, the first direction-changing carrier roller 41, the second direction-changing carrier roller 42, the sweeping and sorting plate 45, the third direction-changing carrier roller 43 and the fourth direction-changing carrier roller 44. The angle of the bending arc of the conveyor belt 48 at the second redirecting carrier roller 42 and the third redirecting carrier roller 43 is 110-130 degrees, the conveyor belt is horizontally arranged after passing over the second redirecting carrier roller 42 and the third redirecting carrier roller 43 and passes through the notch of the left side plate of the feed box 6 and then passes out of the feed box 6, and the conveyor belt 48 is turned to be downwards arranged after passing over the fourth redirecting carrier roller 44 and the first redirecting carrier roller 41. The surface of the conveyor belt 48 is lined with 30 mm-80 mm of wear-resistant rubber.
The fourth redirecting carrier roller 44 is positioned outside the feed box 6 and is arranged flush with the third redirecting carrier roller 43 in equal height; the first redirecting carrier roller 41 is positioned outside the feed box 6, the top of the first redirecting carrier roller is arranged at the same height as the bottom of the second redirecting carrier roller 42, and the distance between the first redirecting carrier roller 41 and the feed box 6 is 100-200 mm; the distance between the fourth redirecting idler 44 and the first redirecting idler 41 in the horizontal direction is 1.2 to 1.3 times larger than the diameter of the transmission roller 47.
The discharge box comprises a box body and partition plates 71, the box body is rectangular, the two partition plates 71 are mutually parallel and vertically fixedly connected between the front side plate and the rear side plate of the box body, and waste rock discharge openings 72 and ore discharge openings 73 positioned on two sides of the waste rock discharge openings are formed.
The utility model is provided with a crushing unit, a dry separation unit and a ore discharging unit from top to bottom, and the three units are connected with a common integral frame to form a whole. Therefore, the gyratory crushing and dry separation operation is integrated into one device, and compared with the traditional gyratory crushing and dry separation operation which adopts two devices and is independently arranged in different workshops, the utility model has the advantages of small quantity of devices, small equipment purchase and investment, low operation and maintenance cost and capability of greatly increasing the economic benefit of a concentrating mill. The pre-selected feed is the low-grade magnetite ore of the finely-crushed product in magnetite, and a large amount of waste rocks and surrounding rocks can be thrown out by throwing the tail of the magnetite ore, so that the processing capacity of the subsequent grinding and selecting operation is greatly reduced, the subsequent equipment and factory investment is reduced, and the energy consumption and the operation cost are reduced.
The collecting hopper 5 realizes the cluster distribution of broken products vertically downwards from the strip-shaped outlet along the circumferential distribution direction, thereby reducing the vertical width of the materials to 200-400 mm, and effectively avoiding the situation that magnetic separation materials cannot be adsorbed due to overlarge field intensity reduction when boundary materials are too far away from the magnetic separation roller 31. The sorting environment of the magnetic separation roller 31 is advantageously optimized, thereby advantageously ensuring the high recovery rate of the magnetic iron.
The material falling speed is relatively low during roughing, and the material is separated by a magnetic separation roller 31; then, after the magnetic separation roller 31, the materials are separated by adopting a sweeping separation plate 45 at a stage with a higher falling speed, and the separation plate is longer in length, so that the sufficient separation time of sweeping is ensured. The method adopts different sorting equipment at the extreme of different material falling speeds, so that sufficient sorting time is ensured, and the sorting effect is ensured.
The field intensity of roughing is 400 mT-600 mT, and the adoption of stronger field intensity ensures the full recovery of most of magnetic separation minerals. The scavenging field intensity is 1.1-1.2 times of the roughing field intensity, so that partial ore-gangue intergrowth with weaker magnetism and a small amount of ore wrapped and mixed in the roughing waste stone are recovered again by utilizing scavenging. The combination mode of roughing and scavenging ensures the high recovery rate of the magnetic iron.
The roughing and the scavenging of the device are respectively arranged at two sides of the material flow, so that the width range of the whole material flow is in the magnetic field range of roughing and scavenging, the depth preselection of the full width range is realized, and the high recovery rate of the magnetic iron is ensured.
The surface of the magnetic separation roller 31 is provided with the wear-resistant rubber layer with the thickness of 30 mm-80 mm, so that the service life of the magnetic separation roller is guaranteed, the maintenance frequency of the magnetic separation roller is reduced, and the equipment operation rate is improved.
The utility model changes the horizontal transmission of the conveyor belt into downward transmission after the conveyor belt horizontally passes out of the feed box 6 through the action of the direction changing carrier roller, and in this way, most of the conveyor belt 18, the transmission roller 47 and the transmission part are all arranged outside the feed box 6 and one side of the discharge box, thereby being beneficial to the rapid overhaul of the components and having low operation and maintenance cost. And the arrangement height difference of the feeding box 6 and the discharging box is fully utilized in a way of being downwards arranged close to the box body, so that the integration of the common rack is realized, the equipment arrangement is more compact, and the integration level is high.
The scavenging unit of the utility model forms the adsorption of the magnetic ore on the vertical section of the scavenging separation plate 45 by covering the conveyer belt 48 on the scavenging separation plate 45, realizes the movement of the magnetic ore from the vertical direction to the near horizontal direction by the arc of 110-130 degrees, and then is conveyed to the rear of the folded plate along with the conveyer belt to be discharged to one side of the ore of the discharging part under the action of single inertia.
The sweeping unit device realizes the switching of the conveying direction of the conveyor belt 48 through the redirecting roller group, and the carrier roller steering mode is beneficial to saving energy and reducing the abrasion of the conveyor belt.
The rougher motor 32 and the scavenger motor 46 of the utility model both adopt variable frequency speed regulating motors, thereby being capable of regulating the belt speed of the conveyor belt 48, then regulating the inertial kinetic energy of the adsorbed magnetic ore during unloading, changing the unloading track of the magnetic ore, and regulating the proportion of the materials at both sides of the separator 71 so as to ensure the recovery rate of the magnetic iron in the dry separation concentrate to the maximum extent.
Claims (10)
1. A magnetite high yield preselection device, its characterized in that: the device comprises a frame, a crusher, a rougher, a scavenger, a collecting hopper, a feed box and a discharge box, wherein the crusher is a crushing unit, the rougher and the scavenger are combined into a dry separation unit, and the discharge box is a mineral discharge unit; the crusher, the rougher and the scavenger are sequentially fixedly connected onto the frame from top to bottom, the collecting hopper is positioned at the bottom of the discharge port of the crusher, the feed box is fixedly connected at the bottom of the collecting hopper, and the discharge box is fixedly connected at the bottom of the feed box; the magnetic separation roller of the rougher is positioned in the feed box and below one side of the outlet of the collecting hopper; the scavenging separation plate of the scavenging machine is positioned in the feed box, positioned below the other side of the collecting hopper outlet and positioned below the magnetic separation roller.
2. A magnetite high yield preselection device according to claim 1, characterized in that: the frame comprises vertical upright posts, and a horizontal upper layer platform, a middle layer platform and a lower layer platform which are fixedly connected between the upright posts; the crusher is fixedly connected to the upper layer platform through bolts, the rougher is fixedly connected to the middle layer platform through bolts, and the scavenger is fixedly connected to the lower layer platform through bolts.
3. A magnetite high yield preselection device according to claim 1, characterized in that: the crusher is a gyratory crusher.
4. A magnetite high yield preselection device according to claim 1, characterized in that: the roughing machine comprises a magnetic separation roller and a roughing machine motor, wherein the roughing machine motor adopts a variable-frequency speed-regulating motor, and the roughing machine motor is connected with the magnetic separation roller and drives the magnetic separation roller to rotate; the roller shaft of the magnetic separation roller is arranged on a bearing, the bearing is arranged in a bearing seat, the bearing seat is fixedly connected on a supporting beam, and the supporting beam is fixedly connected on a feeding box.
5. A magnetite high yield preselection device according to claim 4, wherein: the magnetic separation roller is provided with a permanent magnet system with a wrap angle of 110-130 degrees at one side facing the material flow, the magnetic system is fan-shaped and is arranged by taking the horizontal axis of the separation roller as a central line, and the magnetic system is not substantially connected with the magnetic separation roller and is a fixed non-rotating body.
6. A magnetite high yield preselection device according to claim 4, wherein: the surface of the magnetic separation roller is provided with a wear-resistant rubber layer with the thickness of 30 mm-80 mm, and the magnetic field intensity of the roller surface is 400 mT-600 mT.
7. A magnetite high yield preselection device according to claim 1, characterized in that: the scavenging machine comprises a scavenging separation plate, a scavenging machine motor, a transmission roller and a carrier roller group; the sweeping and selecting plate is vertically and fixedly connected between the front side plate and the rear side plate of the feed box, the driving belt bypasses the carrier roller group, the sweeping and selecting plate and the driving roller, the sweeping and selecting motor adopts a variable-frequency speed regulating motor, and the sweeping and selecting motor is connected with the driving roller and drives the driving roller to rotate, so that the driving belt is driven to operate.
8. A magnetite high yield preselection device according to claim 7, wherein: the carrier roller group includes first bend carrier roller, second bend carrier roller, third bend carrier roller and fourth bend carrier roller, and first bend carrier roller, second bend carrier roller are parallel to each other, and third bend carrier roller, fourth bend carrier roller are parallel to each other, and first bend carrier roller, second bend carrier roller are parallel to each other and are located the below, and second bend carrier roller and third bend carrier roller are located the feed box, are located the sweep selection and divide the board outside.
9. A magnetite high yield preselection device according to claim 1, characterized in that: the scavenging separation plate consists of a vertical plate and an inclined plate, wherein the inclined plate is positioned below the vertical plate, and the angle between the vertical plate and the inclined plate is 110-130 degrees.
10. A magnetite high yield preselection device according to claim 1, characterized in that: the discharging box comprises a box body and partition plates, wherein the box body is rectangular, and the two partition plates are mutually parallel and vertically fixedly connected between the front side plate and the rear side plate of the box body to form a waste stone discharging opening and an ore discharging opening positioned on two sides of the waste stone discharging opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223391672.9U CN219150377U (en) | 2022-12-16 | 2022-12-16 | Magnetite high-yield preselection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223391672.9U CN219150377U (en) | 2022-12-16 | 2022-12-16 | Magnetite high-yield preselection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219150377U true CN219150377U (en) | 2023-06-09 |
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ID=86622069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223391672.9U Active CN219150377U (en) | 2022-12-16 | 2022-12-16 | Magnetite high-yield preselection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219150377U (en) |
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2022
- 2022-12-16 CN CN202223391672.9U patent/CN219150377U/en active Active
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