CN115921276A

CN115921276A - Metal ore dry-method high-precision concentrating machine

Info

Publication number: CN115921276A
Application number: CN202211482785.1A
Authority: CN
Inventors: 孙浩; 施静纯
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-04-07

Abstract

The invention discloses a metal ore dry-method high-precision concentrating machine, which relates to the technical field of dry-method concentrating mechanical equipment and comprises a grading box, wherein a grading mechanism is arranged in the grading box, the grading mechanism comprises a double-shaft motor, two rotating shafts, a first rotating disc, a second rotating disc, four connecting pieces, four springs, a screen plate, a first spur gear and a shade, the double-shaft motor is fixedly arranged between the inner walls of the grading box, the output ends of the two ends are respectively and fixedly connected with one ends of the two rotating shafts through a coupler, and the first rotating disc is eccentrically and fixedly sleeved on the outer wall of one end, far away from the coupler, of the left rotating shaft. According to the invention, the double-shaft motor is started, the rotating shaft rotates to enable the first rotating disc and the second rotating disc to eccentrically rotate to alternately extrude the screen plate, so that the screen plate can shake up and down through the extension and contraction of the spring, raw coal smaller than the standard volume passes through meshes of the screen plate, raw coal larger than the standard volume stops on the surfaces of the meshes, and the raw coal obliquely passes through the ore discharge holes through shaking, so that the raw coal can be conveniently and rapidly subjected to primary grading operation.

Description

Metal ore dry-method high-precision concentrating machine

Technical Field

The invention relates to the technical field of dry-method mineral processing mechanical equipment, in particular to a metal ore dry-method high-precision concentrating machine.

Background

The dry beneficiation process has the advantages of saving the product dewatering and dry operation process, reducing ash loss, short process flow, low production cost and being suitable for drought and water-deficient areas.

According to the Chinese patent publication No. CN212732505U, the patent discloses a novel dry-method high-precision ore separator for precious metal ore, which comprises a shell, a transmission motor and a speed reducer, wherein the transmission motor is in transmission connection with the speed reducer, a gangue powder outlet is formed in the upper portion of the shell, so that gangue powder is discharged from the gangue powder outlet according to the negative pressure air draft principle, three air-breaking special-shaped steel sheets are respectively and fixedly connected between the circumferential direction of an inner ring of a flaky ring at the upper layer and the circumferential direction of an inner ring of a middle layer and the circumferential direction of a hollow circular truncated cone outer side wall, eddy currents entering the gangue separator can be scattered, the eddy currents can be quickly formed into forward flow and upwards discharged, the reactive power consumption of the eddy currents in the gangue separator is reduced, the resistance of the gangue separator is reduced, the powder separation efficiency is improved, and energy is saved.

This patent has improved the selection powder efficiency energy saving, nevertheless does not have the screening structure to the raw coal that is greater than 80mm in the raw coal classifying screen, leads to the raw coal can't sieve and break to below 80mm, causes whole assembly line to lack the continuity.

Disclosure of Invention

The invention provides a metal ore dry-method high-precision concentrating machine, which aims to solve the problems in the background technology.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a metal ore dry-method high-precision concentrating machine comprises a grading box, wherein a grading mechanism is arranged in the grading box, and the grading mechanism comprises a double-shaft motor, two rotating shafts, a first rotating disc, a second rotating disc, four connecting sheets, four springs, a screen plate, a first spur gear and a shade;

biax motor fixed mounting is between the inner wall of hierarchical case, and the output at both ends is respectively through the one end fixed connection of shaft coupling and two pivots, the one end outer wall of shaft coupling is kept away from in the pivot of the left side is established to an eccentric fixed cover of carousel, two eccentric fixed cover of carousel are established and are kept away from the one end outer wall of shaft coupling in the pivot of the right, four the connection piece is fixed mounting respectively at the front of inner wall of hierarchical case, the inner wall back, four the one end of spring is fixed connection respectively at the top of four connection pieces, screen board fixed mounting is kept away from the one end of connection piece at four springs, and screen board is the slope setting, the right the pivot is kept away from the one end of shaft coupling and is continued the activity and run through to the right side outside of hierarchical case, the end outer wall that runs through in the pivot of the right is established to spur gear fixed cover, shade fixed mounting is at the top of biax motor.

The technical scheme of the invention is further improved as follows: the top fixed mounting of hierarchical case has the feed inlet, and the bottom of feed inlet and the top intercommunication setting of hierarchical case.

Adopt above-mentioned technical scheme, workshop conveyer in this scheme carries the raw coal to the top of hierarchical case to the material feeding mouth falls into inside the hierarchical case.

The technical scheme of the invention is further improved as follows: the front of the classification box is provided with ore holes, the lower ends of the screen plates extend to the inner walls of the ore holes, the front of the ore holes is communicated with one end of a discharge plate, and the other end of the discharge plate extends towards the front and is provided with a crushing mechanism.

By adopting the technical scheme, the raw coal in the scheme obliquely passes through the ore discharge hole through shaking and falls into the crushing mechanism along the discharge plate in a sliding manner.

The technical scheme of the invention is further improved as follows: broken mechanism includes broken case, bull stick one, spur gear two, two spur gears three, two compression rollers, the open-top setting of broken case, and the opening part top aligns with the one end that goes out the flitch and keep away from the ore deposit hole, the one end of bull stick one is passed through one bearing and is rotated the inner wall left side of connecting at broken case, and the other end activity of bull stick one runs through to the right side of broken case outside, two fixed covers of spur gear are established and are run through the end outer wall at bull stick one, the inner wall of broken case rotates through bearing two and is connected with bull stick two, two the outer wall at bull stick one and bull stick two is established to three and two compression rollers of spur gear are fixed the cover respectively to be located broken incasement portion simultaneously, mesh between two spur gears three.

By adopting the technical scheme, the raw coal in the scheme passes through the space between the two compression rollers, and the raw coal with the volume larger than the standard volume is crushed, so that the volume of the raw coal is ensured to be smaller than the standard volume.

The technical scheme of the invention is further improved as follows: and a toothed belt is meshed between the second spur gear and the first spur gear, and the second spur gear and the first spur gear are in transmission connection through the toothed belt.

By adopting the technical scheme, the first spur gear in the scheme is transmitted to the second spur gear through the toothed belt and drives the two compression rollers to rotate mutually, and the raw coal is rolled to perform crushing operation.

The technical scheme of the invention is further improved as follows: be provided with sorting mechanism on the broken case, and sorting mechanism includes sorting box, vibrating motor, backplate, baffle one, baffle two, baffle three, discharge gate, the top right side of sorting box and the bottom intercommunication setting of broken case, the inner wall right side fixed mounting of sorting box has quick-witted case, vibrating motor sets up at quick-witted incasement portion, backplate fixed mounting is between the inner wall and the quick-witted case of sorting box to the slope sets up, baffle one, baffle two, baffle three fixed mounting are in proper order at the top of backplate, the discharge gate is seted up at the sorting box openly to with the low end intercommunication setting of backplate.

Adopt above-mentioned technical scheme, the vibrating motor vibrations in this scheme make the separation box drive the backplate vibrations, make raw coal slide along separation box inclination, slide along backplate inclination simultaneously.

The technical scheme of the invention is further improved as follows: the distance between the first baffle and the case is smaller than the distance between the first baffle and the second baffle, the distance between the first baffle and the second baffle is smaller than the distance between the second baffle and the third baffle, and the distance between the second baffle and the third baffle is smaller than the distance between the third baffle and the left side of the inner wall of the sorting box.

By adopting the technical scheme, the crushed raw coal in the scheme can sequentially pass through the intervals among the first baffle, the second baffle and the third baffle according to different crushing volumes to form small-particle clean coal, medium-particle medium coal and large-particle gangue in three regions.

The technical scheme of the invention is further improved as follows: the bottom of broken case fixed mounting in proper order has two landing legs, two the left side bottom fixed mounting of landing leg has the classification case, the top of classification case fixed mounting in proper order has two division boards, two the top fixed connection of division board is in the outer wall bottom of separation case.

By adopting the technical scheme, the partition plate in the scheme is used for preventing the problem that raw coal with different volumes in each area is collided and mixed when falling.

The technical scheme of the invention is further improved as follows: three Cheng Jiecao, three Cheng Jiecao inner wall all fixed mounting has the hang plate, and every hang plate all is the slope setting, three transportation hole has been seted up in proper order in the top of categorised case, and every transportation hole connects the setting with every flourishing groove respectively, every the front of transportation hole all communicates and is provided with the conveyer belt device.

By adopting the technical scheme, the three types of raw coal in the scheme fall into the containing grooves on the classifying box, roll to the conveying holes through respective inclined plates and fall into respective conveyor belt devices for classifying and conveying.

The technical scheme of the invention is further improved as follows: the bottom of the grading box is provided with a mineral separation device, and the bottom of the grading box is communicated with the top of the mineral separation device.

By adopting the technical scheme, the mineral separation device in the scheme can realize the purpose of accurately separating the rich fine powder and the gangue powder in the target ore by adopting a physical means.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:

1. the invention provides a metal ore dry method high-precision concentrating machine which is started by a double-shaft motor, wherein a first rotary table and a second rotary table are eccentrically rotated to alternately extrude a screen plate by rotating a rotary shaft, the screen plate is vibrated up and down through the stretching of a spring, raw coal smaller than the standard volume passes through meshes of the screen plate, raw coal larger than the standard volume is stopped on the surfaces of the meshes, and the raw coal obliquely passes through an ore outlet hole through vibration, so that the primary grading operation of the raw coal is conveniently and rapidly carried out.

2. The invention provides a metal ore dry method high-precision concentrating machine, which adopts a double-shaft motor to drive a rotating shaft to rotate, so that a spur gear I is driven to rotate to drive a toothed belt, the spur gear II is transmitted to rotate and drive a rotating rod I to rotate, two spur gears III are meshed to drive two compression rollers to rotate and roll raw coal for crushing operation, the crushing efficiency of the raw coal is improved, and the volume of each raw coal is controlled within a standard value.

3. The invention provides a metal ore dry-method high-precision concentrating machine, which adopts a vibration motor to vibrate and drive an inner cavity of a separating box to vibrate so as to drive a back plate to generate vibration fluctuation, and crushed raw coal can sequentially pass through intervals among a first baffle plate, a second baffle plate and a third baffle plate according to different crushing volumes to respectively form clean coal, middlings and gangue in three areas so as to improve the concentrating precision.

4. The invention provides a metal ore dry-method high-precision concentrating machine which adopts three conveying belt devices to convey raw coal sliding out of an inclined plate respectively and distribute and convey the raw coal to different assembly line operations, so that the concentrating efficiency and the conveying efficiency are improved, and the operation development is convenient.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an internal cross-sectional view of the classification box of the present invention;

FIG. 3 is a schematic structural view of a two-shaft motor according to the present invention;

FIG. 4 is an internal cross-sectional view of the crushing box of the present invention;

FIG. 5 is a schematic structural diagram of a rotating shaft and a rotating rod I according to the present invention;

FIG. 6 is an internal cross-sectional view of the sorting bin of the present invention;

FIG. 7 is a schematic view of the structure of the classification box of the present invention.

In the figure: 1. a grading box; 2. a grading mechanism; 201. a dual-axis motor; 202. a rotating shaft; 203. a first rotating disc; 204. a second rotating disc; 205. connecting sheets; 206. a spring; 207. a screen plate; 208. a first spur gear; 209. masking; 3. a feed inlet; 4. a discharge plate; 5. a crushing mechanism; 501. a crushing box; 502. a first rotating rod; 503. a second spur gear; 504. a third spur gear; 505. a compression roller; 6. a toothed belt; 7. a sorting mechanism; 701. a sorting box; 702. a vibration motor; 703. a back plate; 704. a first baffle plate; 705. a second baffle plate; 706. a baffle III; 707. a discharge port; 8. a support leg; 9. a classification box; 10. a partition plate; 11. cheng Jiecao; 12. an inclined plate; 13. a conveyor means; 14. provided is a mineral separation device.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example one

As shown in fig. 1, 2, 3 and 5, the invention provides a metal ore dry method high-precision concentrating machine, which comprises a grading box 1, wherein a grading mechanism 2 is arranged in the grading box 1, the grading mechanism 2 comprises a double-shaft motor 201, two rotating shafts 202, a first rotating disc 203, a second rotating disc 204, four connecting sheets 205, four springs 206, a screen plate 207, a first spur gear 208 and a shade 209, the double-shaft motor 201 is fixedly arranged between the inner walls of the grading box 1, the output ends of the two ends are respectively and fixedly connected with one ends of the two rotating shafts 202 through couplers, the first rotating disc 203 is eccentrically and fixedly sleeved on the outer wall of the left rotating shaft 202 at the end far away from the couplers, the second rotating disc 204 is eccentrically and fixedly sleeved on the outer wall of the right rotating shaft 202 at the end far away from the couplers, four connection pieces 205 are fixed mounting respectively and openly at the inner wall of hierarchical case 1, the inner wall back, the one end difference fixed connection of four springs 206 is at the top of four connection pieces 205, screen board 207 fixed mounting is in the one end that four springs 206 kept away from connection piece 205, and screen board 207 sets up the slope, the one end that the shaft coupling was kept away from to right pivot 202 continues the activity to run through to hierarchical case 1's right side outside, the end outer wall that runs through of pivot 202 is established at the right to spur gear 208 fixed cover, shade 209 fixed mounting is at the top of biaxial motor 201, hierarchical case 1's top fixed mounting has feed inlet 3, and the bottom of feed inlet 3 and hierarchical case 1's top intercommunication set up, workshop conveyor carries raw coal to hierarchical case 1's top, and feed inlet 3 falls into hierarchical case 1 inside.

In this embodiment, start through biax motor 201, the rotatory carousel that makes of pivot 202 is first 203 and the eccentric rotation of carousel two 204 in turn extrudees screen plate 207, makes screen plate 207 shake from top to bottom through the spring 206 is flexible, makes the raw coal that is less than 80mm pass the mesh of screen plate 207, and the raw coal that is greater than 80mm stops on the mesh surface to pass the hole of ore removal through shaking the slope, conveniently carries out preliminary grading operation to the raw coal.

Example two

As shown in fig. 1 to 5, on the basis of the first embodiment, the present invention provides a technical solution: preferably, the front of the classification box 1 is provided with an ore outlet, the lower end of the screen plate 207 extends to the inner wall of the ore outlet, the front of the ore outlet is communicated with one end of the discharge plate 4, the other end of the discharge plate 4 extends to the front continuously, and is provided with a crushing mechanism 5, raw coal obliquely passes through the ore outlet through shaking and falls into the crushing mechanism 5 along the discharge plate 4 in a sliding manner, the crushing mechanism 5 comprises a crushing box 501, a first rotating rod 502, a second spur gear 503, a third spur gear 504 and two compression rollers 505, the top opening of the crushing box 501 is arranged, the upper part of the opening is aligned with one end of the discharge plate 4 far away from the ore outlet, one end of the first rotating rod 502 is rotatably connected to the left side of the inner wall of the crushing box 501 through a bearing, and the other end of the first rotating rod 502 movably penetrates to the outside of the right side of the crushing box 501, the second spur gear 503 is fixedly sleeved on the outer wall of the penetrating end of the first rotating rod 502, the inner wall of the crushing box 501 is rotatably connected with the second rotating rod through the second bearing, the third spur gear 504 and the two compression rollers 505 are respectively fixedly sleeved on the outer walls of the first rotating rod 502 and the second rotating rod and are simultaneously positioned inside the crushing box 501, the third spur gear 504 is meshed with each other, raw coal passes through the two compression rollers 505, the raw coal larger than the standard volume is crushed, the volume of the raw coal is ensured to be smaller than the standard volume, toothed belts 6 are meshed between the second spur gear 503 and the first spur gear 208, the second spur gear 503 and the first spur gear 208 are in transmission connection through the toothed belts 6, the first spur gear 208 is transmitted to the second spur gear 503 through the toothed belts 6 and drives the two compression rollers 505 to rotate mutually, and the raw coal is rolled to crush.

In this embodiment, the rotating shaft 202 is driven to rotate by the double-shaft motor 201, so that the first spur gear 208 rotates to drive the toothed belt 6, the second spur gear 503 is transmitted to rotate and drive the first rotating rod 502 to rotate, the two third spur gears 504 are meshed to drive the two compression rollers 505 to rotate and roll raw coal to crush the raw coal, the crushing efficiency of the raw coal is improved, and the volume of each raw coal is controlled within a standard value.

EXAMPLE III

As shown in fig. 1, 6 and 7, on the basis of the first embodiment, the present invention provides a technical solution: preferably, the sorting mechanism 7 is arranged on the crushing box 501, the sorting mechanism 7 comprises a sorting box 701, a vibrating motor 702, a back plate 703, a baffle I704, a baffle II 705, a baffle III 706 and a discharge port 707, the right side of the top of the sorting box 701 is communicated with the bottom of the crushing box 501, a machine box is fixedly arranged on the right side of the inner wall of the sorting box 701, the vibrating motor 702 is arranged inside the machine box, the back plate 703 is fixedly arranged between the inner wall of the sorting box 701 and the machine box, the baffle plates I704, II 705 and III 706 are sequentially and fixedly arranged on the top of the back plate 703, the discharge port 707 is arranged on the front surface of the sorting box 701, and is communicated with the lower end of the back plate 703, the vibration motor 702 vibrates and causes the separation box 701 to drive the back plate 703 to vibrate, so that the raw coal slides along the separation box 701 at an inclined angle, the coal mine separation device is characterized in that the coal mine separation device slides along a back plate 703 in an inclined angle, the interval between a first baffle plate 704 and a case is smaller than the interval between a first baffle plate 704 and a second baffle plate 705, the interval between the first baffle plate 704 and the second baffle plate 705 is smaller than the interval between a second baffle plate 705 and a third baffle plate 706, the interval between the second baffle plate 705 and the third baffle plate 706 is smaller than the interval between a third baffle plate 706 and the left side of the inner wall of a separation box 701, crushed raw coal can sequentially penetrate through the intervals between the first baffle plate 704, the second baffle plate 705 and the third baffle plate 706 according to different crushing volumes to form small-particle clean coal, medium-particle medium coal and large-particle gangue in three areas, two support legs 8 are sequentially and fixedly installed at the bottom of the crushing box 501, a classification box 9 is fixedly installed at the bottom of the left side of the two support legs 8, two separation plates 10 are sequentially and fixedly installed at the top of the classification box 9, the top of the two separation plates 10 are fixedly connected to the bottom of the outer wall of the separation box 701, and the separation plates 10 are used for preventing the problem that the raw coal in each area with different volumes from colliding and mixing when the raw coal mine coal fall.

In this embodiment, the vibration motor 702 vibrates to vibrate the inner cavity of the separation box 701, so as to drive the back plate 703 to vibrate and fluctuate, and the crushed raw coal sequentially passes through the intervals among the first baffle 704, the second baffle 705 and the third baffle 706 according to different crushing volumes, so as to form clean coal, middlings and gangue in three areas respectively, and improve the ore dressing precision.

Example four

As shown in fig. 1 and 7, on the basis of the first embodiment, the present invention provides a technical solution: preferably, three flourishing groove 11 has been seted up in proper order at the top of classification case 9, the equal fixed mounting in 11 inner walls in three flourishing groove has hang plate 12, and every hang plate 12 all is the slope setting, three transportation hole has been seted up in proper order in classification case 9's front, and every transportation hole sets up with every flourishing groove 11 intercommunication respectively, the front in every transportation hole all communicates and is provided with conveyor means 13, three types of raw coals drop to the flourishing groove 11 on classification case 9 in, roll and fall into respective conveyor means 13 through respective hang plate 12 and carry in categorised to the transportation hole, classification case 1's bottom is provided with ore dressing device 14, and classification case 1's bottom and ore dressing device 14's top intercommunication set up.

In this embodiment, through three conveyor means 13, carry the raw coal of hang plate 12 roll-off respectively to the distribution is transported different assembly line operations, improves ore dressing efficiency and conveying efficiency, and convenient operation is carried out.

The working principle of the metal ore dry high-precision concentrating machine is described in detail below.

As shown in fig. 1-7, raw coal is conveyed to the top of a grading box 1 by a workshop conveyor, a feeding port 3 falls into the grading box 1, a double-shaft motor 201 is started, and rotates through a rotating shaft 202, so that a first rotating disc 203 and a second rotating disc 204 eccentrically rotate and alternately extrude a screen plate 207, so that the screen plate 207 is stretched and contracted through a spring 206 to shake up and down, and then the raw coal smaller than 80mm passes through meshes of the screen plate 207 and enters an ore dressing device 14, and the ore dressing device 14 adopts the technical scheme with the publication number of CN212732505U to achieve the purpose of accurately separating ore-rich refined powder and gangue powder in target ore by adopting a physical means, and the raw coal larger than 80mm stays on the surface of the meshes, obliquely passes through an ore outlet by shaking, slides along the outlet plate 4 and falls into a crushing box 501, passes between two press rollers 505, at this time, the double-shaft motor 201 drives the rotating shaft 202 to rotate, so that the first spur gear 208 rotates and drives the toothed belt 6 to rotate, so that the toothed belt is transmitted to the second spur gear 503, the second spur gear 503 rotates and drives the first rotating rod 502 to rotate, and the two third spur gears 504 are meshed with each other to rotate, so that the first spur gear 208 is transmitted to the second spur gear 503 through the toothed belt 6 and drives the two compression rollers 505 to rotate, raw coal is crushed to be crushed, the crushed raw coal falls into the separation box 701 through the bottom of the crushing box 501, the vibration motor 702 vibrates and drives the inner cavity of the separation box 701 to vibrate, and the back plate 703 is driven to vibrate and fluctuate And clean coal, middlings and gangue in three areas are respectively formed at intervals between the second baffle 705 and the third baffle 706, the raw coal with three different volumes slides to the discharge port 707 through oblique vibration, the partition plate 10 is used for preventing the problem that the raw coal with different volumes in each area collides and is mixed up when falling, when the three types of raw coal fall into the containing groove 11 on the classification box 9, the raw coal continuously rolls to the conveying hole through the respective inclined plate 12 and falls into the respective conveyor belt device 13, the conveyor belt device 13 is started, the clean coal, the middlings and the gangue are classified and conveyed, and the mineral separation precision is improved.

The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.

Claims

1. A metal ore dry high accuracy concentrator, includes classification case (1), its characterized in that: a grading mechanism (2) is arranged in the grading box (1), and the grading mechanism (2) comprises a double-shaft motor (201), two rotating shafts (202), a first rotating disc (203), a second rotating disc (204), four connecting pieces (205), four springs (206), a screen plate (207), a first spur gear (208) and a shade (209);

biax motor (201) fixed mounting is between the inner wall of hierarchical case (1), and the output at both ends is respectively through the one end fixed connection of shaft coupling and two pivot (202), the one end outer wall of shaft coupling is kept away from in pivot (202) on the left side to the eccentric fixed cover of carousel one (203), the one end outer wall of keeping away from the shaft coupling in pivot (202) on the right is established to two (204) eccentric fixed covers of carousel, four connection piece (205) fixed mounting respectively is in the inner wall of hierarchical case (1) openly, the inner wall back, four the one end of spring (206) is fixed connection respectively at the top of four connection pieces (205), screen board (207) fixed mounting is in the one end that connection piece (205) were kept away from in four springs (206), and screen board (207) are the slope setting, the right the one end that the shaft coupling was kept away from in pivot (202) continues the activity to run through to the right side outside of hierarchical case (1), the fixed end outer wall that runs through in pivot (202) on the right is established to spur gear one (208), mask (209) fixed mounting is at the top of biax motor (201).

2. A metal ore dry high accuracy concentrator as defined in claim 1, wherein: the top fixed mounting of hierarchical case (1) has feed inlet (3), and the bottom of feed inlet (3) and the top intercommunication setting of hierarchical case (1).

3. A metal ore dry high accuracy concentrator as defined in claim 1, wherein: the front of the grading box (1) is provided with ore holes, the lower end of the screen plate (207) extends to the inner wall of the ore holes, the front of the ore holes is communicated with one end of a discharge plate (4), the other end of the discharge plate (4) extends towards the front continuously, and a crushing mechanism (5) is arranged.

4. A metal ore dry high accuracy concentrator as defined in claim 3 wherein: broken mechanism (5) are including broken case (501), bull stick one (502), spur gear two (503), three (504) of two spur gears, two compression rollers (505), the open-top setting of broken case (501), and the opening part top aligns with the one end that goes out flitch (4) and keep away from the ore discharge hole, the one end of bull stick one (502) is passed through one rotation of bearing and is connected in the inner wall left side of broken case (501), and the other end activity of bull stick one (502) runs through to the right side outside of broken case (501), fixed the cover of spur gear two (503) is established at bull stick one (502) and is run through the end outer wall, the inner wall of broken case (501) is rotated through bearing two and is connected with bull stick two, two the outer wall at bull stick one (502) and bull stick two is established to three (504) of spur gear and two compression rollers (505) are fixed the cover respectively to be located inside broken case (501) simultaneously, mesh between three (504) of two spur gears.

5. A metal ore dry high accuracy concentrator as defined in claim 4, wherein: a toothed belt (6) is meshed between the second spur gear (503) and the first spur gear (208), and the second spur gear (503) and the first spur gear (208) are in transmission connection through the toothed belt (6).

6. A metal ore dry high accuracy concentrator as defined in claim 4, wherein: the sorting device is characterized in that a sorting mechanism (7) is arranged on the crushing box (501), the sorting mechanism (7) comprises a sorting box (701), a vibrating motor (702), a back plate (703), a first baffle plate (704), a second baffle plate (705), a third baffle plate (706) and a discharge port (707), the right side of the top of the sorting box (701) is communicated with the bottom of the crushing box (501), a case is fixedly mounted on the right side of the inner wall of the sorting box (701), the vibrating motor (702) is arranged inside the case, the back plate (703) is fixedly mounted between the inner wall of the sorting box (701) and the case and is obliquely arranged, the first baffle plate (704), the second baffle plate (705) and the third baffle plate (706) are fixedly mounted on the top of the back plate (703) in sequence, and the discharge port (707) is arranged on the front face of the sorting box (701) and communicated with the lower end of the back plate (703).

7. A metal ore dry high accuracy concentrator as defined in claim 6 wherein: the interval between the first baffle plate (704) and the cabinet is smaller than the interval between the first baffle plate (704) and the second baffle plate (705), the interval between the first baffle plate (704) and the second baffle plate (705) is smaller than the interval between the second baffle plate (705) and the third baffle plate (706), and the interval between the second baffle plate (705) and the third baffle plate (706) is smaller than the interval between the third baffle plate (706) and the left side of the inner wall of the sorting box (701).

8. A metal ore dry high accuracy concentrator as defined in claim 6 wherein: the bottom of broken case (501) fixed mounting in proper order has two landing legs (8), two the left side bottom fixed mounting of landing leg (8) has classification box (9), the top of classification box (9) fixed mounting in proper order has two division boards (10), two the top fixed connection of division board (10) is in the outer wall bottom of separation box (701).

9. A metal ore dry high accuracy concentrator as defined in claim 8, wherein: three Cheng Jiecao (11), three have been seted up in proper order to the top of categorised case (9) Cheng Jiecao (11) inner wall equal fixed mounting has hang plate (12), and every hang plate (12) all is the slope setting, three transportation hole has been seted up in proper order in the front of categorised case (9), and every transportation hole connects groove (11) intercommunication setting, every greatly with every respectively the front of transportation hole all communicates and is provided with conveyor means (13).

10. A metal ore dry high accuracy concentrator as defined in claim 1, wherein: the bottom of classifying box (1) is provided with ore dressing device (14), and the bottom of classifying box (1) and the top intercommunication setting of ore dressing device (14).