CN114537975A - Comprehensive utilization and treatment device for metal tailings - Google Patents

Abstract

The invention discloses a resource comprehensive utilization and treatment device for metal tailings, which comprises a tailing taking device, a blanking conveying device, an ore material screening device, an aggregate collecting device, a shaping machine, a fine sand screen, a medium grain material collecting device, a powder concentrator, a fine sand recovery device, a dust collecting device, a fan and a fine sand loading and transporting device. Compared with the prior art, the invention can efficiently and quickly produce the finished tailings sand products of fine fraction, medium fraction and coarse fraction, and has the advantages of low cost, high efficiency, stable operation, environmental protection and reliability.

Description

Comprehensive utilization and treatment device for metal tailings

Technical Field

The invention relates to a tailing recycling device, in particular to a metal tailing recycling comprehensive utilization treatment device.

Background

The tailings are waste ores discharged from a mine plant after the ores are subjected to useful component selection. The stacking of the tailings not only occupies a large amount of land area, but also causes serious pollution to the surrounding environment and water resources, the recycling of the tailings can solve the problem of environmental pollution, resources can be saved, the tailings can be recycled, the development of environmental protection and the deep value of mineral resources is significant, and the tailing recycling technology is an important technology, and relates to the technical and equipment requirements and requirements of multiple links such as tailing taking, metering, screening, crushing, processing, collecting and shipping and the like.

Currently, regarding the use of tailings recycled finished products, the tailings sand finished products of fine fraction, medium fraction and coarse fraction can meet various requirements of different application scenes, such as sand materials for preparing special mortar, sand materials for preparing common mortar, sand materials for buildings and the like, and are directly applicable tailings recycled finished products, and the procedures for obtaining the tailings recycled by various grain volumes through the prior art are complex, equipment is expensive and efficiency is low.

Disclosure of Invention

In view of the above, the technical problems to be solved by the present invention are: the comprehensive recycling treatment device for the metal tailings is low in cost, high in efficiency, stable in operation, safe and environment-friendly.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme:

a comprehensive recycling treatment device for metal tailings comprises a tailings taking device, a blanking conveying device, a mineral aggregate screening device, an aggregate collecting device, a shaping machine, a fine sand screen, a medium particle collecting device, a powder concentrator, a fine sand recycling device, a dust collecting device, a fan and a fine sand loading and transporting device, wherein the tailings taking device comprises a track, a rail car and a traction device, the track is erected above a tailings throwing and conveying belt conveyor, the traction device is used for pushing and pulling the rail car to run on the track, the track is two horizontal rails which are horizontally arranged, the rail car comprises a car body, wheels sliding on the two horizontal rails, and a wheel carrier connecting the car body and the wheels, a transversely arranged vertical plate is connected to the car body, extends downwards between the two horizontal rails and extends to the lower part of the track to throw tailing from the tailings throwing and conveying belt conveyor at a position close to the top surface of the tailings throwing and conveying belt conveyor, the traction device comprises a traction rod and a power device used for pushing and pulling the traction rod, the inner end of the traction rod is connected to the vehicle body, the outer end of the traction rod is connected to the power device, the blanking conveying device comprises a metering belt conveyor which is arranged below the tailing taking device and used for carrying, weighing and conveying the vertical plate-poked ore materials to the ore material screening device, the ore material screening device comprises a vibrating screen with a screen plate and a screen seat, the screen plate is arranged on the top surface of the screen seat, the screen seat is provided with a vibrating device which drives the screen seat to drive the screen plate to vibrate so that the tailing materials on the screen plate are ejected and screened from front to back, the front section of the screen plate is a fine-mesh hole part, the rear section of the screen plate is a middle-mesh hole part, and the mesh hole diameter of the middle-mesh hole part is larger than that of the fine-mesh hole part, the sieve base is provided with a fine particle blanking channel penetrating through the sieve base from top to bottom at a position corresponding to the fine sieve hole part, a medium particle blanking channel penetrating through the sieve base from top to bottom at a position corresponding to the medium sieve hole part, a partition board for isolating the fine particle blanking channel and the medium particle blanking channel from each other is arranged between the fine particle blanking channel and the medium particle blanking channel, the front section of the sieve plate is erected below the blanking side of the metering belt conveyor and used for bearing the blanking position of the metering belt conveyor, the aggregate collecting device is provided with an aggregate inlet, the aggregate inlet is externally connected with an aggregate guide groove, the front section of the aggregate guide groove is erected below the rear section of the sieve plate and used for bearing the aggregate discarded by the vibrating sieve, the shaping machine is connected to the bottom opening of the medium particle blanking channel through a feeding opening of the shaping machine, the fine sand sieve is erected below a discharge opening of the shaping machine, and the aperture of the sieve is the same as that of the fine sieve hole part, the medium particle collecting device is provided with a medium particle inlet, a medium particle leading-in groove is connected outside the medium particle inlet, the front section of the medium particle leading-in groove is erected below the rear section of the fine sand screen and is used for carrying and receiving medium particle materials screened by the fine sand screen, a fine sand blanking channel is connected below the fine sand screen, the particle inlet of the powder concentrator is connected to the bottom opening of the fine particle blanking channel and the bottom opening of the fine sand blanking channel, the fine sand recycling device comprises a suspension device used for suspension arrangement, and the fine sand collecting device further comprises a bucket-shaped box body with a box top opening and a box bottom opening, the suspension device is provided with a suspension plate and a suspension arm, the suspension arm is connected to the suspension plate in a hanging manner above the box top opening, the lower section of the suspension plate extends into the upper section space of the bucket-shaped box body through the box top opening and divides two sides of the upper section space of the bucket-shaped box body into a particle passing blanking area and a particle passing blanking area, The other side of the hopper-shaped box body is of a dust discharging and guiding area structure, a sand material inlet is formed in the box wall of the particle passing and blanking area side of the hopper-shaped box body, a dust guide outlet is formed in the box wall of the dust discharging and guiding area side of the hopper-shaped box body, a dust suction channel is connected outside the sand material inlet, the front end of the dust suction channel is connected with a dust suction outlet of the powder concentrator, the dust collecting device is provided with a dust inlet, a dust guide pipeline is connected outside the dust inlet, the front end of the dust guide pipeline is connected with the dust guide outlet, an air outlet of the fan is arranged at the position, close to the powder concentrator, of the front section of the dust suction channel, and a return air inlet is arranged at the position, close to the dust collecting device, of the tail section of the dust guide pipeline, is used for guiding the output air of the fan into the hopper-shaped box body through the sand material inlet, then guiding out of the hopper-shaped box body through the dust guide outlet, finally guiding back to the fan, and blowing dust into the dust collecting device through the dust inlet The fine sand loading and transporting device comprises a blanking pipeline, a distributing nozzle, a distributing bin and a transmission shaft lever, wherein the distributing bin is provided with a pipeline through opening at the center of the top surface of the distributing bin, a shaft lever through opening is arranged at the position of the bottom surface of the distributing bin, which is opposite to the pipeline through opening, the upper end of the blanking pipeline is connected with a bottom opening of the hopper-shaped box body, the lower section of the blanking pipeline extends into the distributing bin through the pipeline through opening, the upper section of the transmission shaft lever extends into the distributing bin through the shaft lever through opening, the distributing nozzle is a 'skimming' pipe nozzle arranged in the distributing bin, the upper end of the distributing nozzle is connected to the lower end of the blanking pipeline in a rotatable manner, the upper end of the transmission shaft lever is fixedly connected to the bottom surface of the distributing nozzle, the lower section of the transmission shaft lever is connected to a driving motor used for driving the distributing bin to rotate so as to drive the distributing nozzle to rotate, and the distributing bin is provided with a plurality of bin falling openings arranged at intervals on the inner bottom surface, each bin falling port penetrates through the bottom surface of the material distributing bin, an independent falling and loading pipeline is connected outside the material distributing bin, and the bin falling port is arranged at the position, corresponding to the lower port passing path of the rotating process of the material distributing nozzle, of the outer edge of the bottom surface of the material distributing bin.

Preferably, the mineral aggregate screening device further comprises a baffle arranged above the screen plate, a driving device used for providing lifting power and a transmission device used for transmitting the lifting power to the baffle, wherein the transmission device is arranged on the baffle and is connected to the driving device in a driving mode.

Preferably, the transmission device comprises a bearing, a lifting screw rod and a closed loop chain, a convex ring part is arranged on the inner ring of the bearing in an extending way towards one axial side of the bearing, the convex ring part is a gear with key teeth on the peripheral surface, the bearing comprises a horizontal bearing which is axially vertical to the top surface of the baffle and a vertical bearing with the axis vertical to the side surface of the baffle, the horizontal bearing is embedded and fixed in the bottom surface of the baffle through the outer ring of the horizontal bearing and is exposed on the top surface of the baffle through the convex ring part of the horizontal bearing, the horizontal bearing comprises a plurality of chain guide bearings which are arranged at intervals along the outer edge of the top surface of the baffle and jointly support the closed loop chain outside, each chain guide bearing is meshed and hung with the closed loop chain through the respective key teeth, the horizontal bearing further comprises at least one chain pushing bearing which is meshed and hung with the closed loop chain through the respective key teeth outside of the closed loop chain, the utility model discloses a chain guide bearing's sieve, including baffle, lifting screw, baffle, drive arrangement, elevating screw top via stretch into in the direction under the baffle the inner ring of chain guide bearing is interior to connect firmly each other, the outer fringe of baffle upwards extends to be equipped with encloses the eaves, horizontal bearing circle in enclose in the eaves, erect to put the bearing and inlay through self outer loop and be in enclose the outer face of eaves and through self bulge loop portion protrusion on the inner face of enclosing the eaves, erect to put the bearing set up with on the position that the pushing chain bearing corresponds and with the pushing chain bearing links to each other through respective key tooth meshing, drive arrangement via enclose outside eaves inwards stretch into erect to put the inner ring of bearing and connect firmly each other, the sieve is in corresponding be equipped with the perforation on lifting screw's the position, the sieve seat is in corresponding be equipped with the spiral shell chamber on the perforated position, the lifting screw lower extreme passes perforation and spiral shell income the spiral shell intracavity.

Preferably, the vibrating screen is a rectangular screen, the baffle is a rectangular plate, and the rectangular plate is provided with the chain guide bearings at four corners of the rectangular plate.

Preferably, the driving device comprises a driving shaft, a driving handle or a driving motor connected to the outer end of the driving shaft, and the inner end of the driving shaft extends inwards into the inner ring of the vertical bearing through the outer side of the enclosing brim and is fixed with each other.

Preferably, the mineral aggregate screening device further comprises a top cover which is used for buckling the baffle plate and the screen plate cover from top to bottom in the device so as to prevent tailing mineral aggregates on the screen plate from overflowing from two sides of the screen plate in the screening process, the top cover is provided with a cover top surface and cover vertical surfaces which vertically extend downwards along the outer edges of two sides of the cover top surface, and the lower edges of the cover vertical surfaces are connected to the outer surfaces of the corresponding sides of the upper section of the screen seat.

Preferably, the vehicle body is provided with a vehicle body frame which is formed by connecting an inner end frame plate, an outer end frame plate, a front frame plate and a rear frame plate into a whole in a surrounding manner, the inner end of the traction rod is connected to the inner end frame plate of the vehicle body frame, the top end of the hanging plate is connected with a horizontally arranged hanging plate, the front edge of the hanging plate is provided with a front edge hanging eave extending downwards, the rear edge of the hanging plate is provided with a rear edge hanging eave extending downwards, the front frame plate is provided with a front eave hanging table extending towards the vehicle body frame, the rear frame plate is provided with a rear eave hanging table extending towards the vehicle body frame, the hanging plate is hung on the front eave hanging table of the front frame plate in a clamping manner through the front edge hanging eave, the hanging plate is hung on the rear eave hanging table of the rear frame plate in a clamping manner through the rear edge, the lower edge of the hanging plate is fixedly wrapped with a rubber strip, and the rubber strip is fixedly wrapped on the lower edge of the hanging plate in a detachable manner through a rivet, the vertical plate is of a structure gradually narrowed from top to bottom and with an inverted triangle-shaped cross section, the outer section of the traction rod is a traction screw connected with the power device in a threaded mode, the inner end of the traction rod is a shaft head end, the outer end of the vehicle body is connected with a shaft seat, the traction rod is connected with the shaft seat in a shaft rotating mode through the shaft head end, and the power device comprises a device frame penetrating through the traction screw in a threaded mode and a driving motor connected with the traction screw in a driving mode.

Preferably, the suspension arm is an elevator capable of regulating and controlling the suspension plate to lift, the upper section of the hopper-shaped box body is square or rectangular, and the lower section of the hopper-shaped box body is in an isosceles trapezoid shape gradually narrowing from top to bottom.

Preferably, a driving bearing is arranged in the material distribution bin, the driving bearing is fixedly connected to the lower port of the blanking pipeline through an inner ring of the driving bearing and fixedly connected to the upper port of the material distribution nozzle through an outer ring of the driving bearing, and the material distribution nozzle is a 'skimming' pipe which gradually narrows from top to bottom.

Preferably, the system also comprises a central controller for electrically controlling the operation of the driving motor, the metering belt conveyor, the driving motor, the vibrating device, the shaping machine, the powder concentrator, the fan, the lifter and the driving motor.

According to the technical scheme, the beneficial effects of the invention are as follows:

compared with the prior art, the invention carries out shifting and material taking operation on a tailing throwing and conveying belt conveyor in the tailing conveying process of a mine enterprise conveying the tailings to a stacking place through a tailing taking device, then carries out real-time weighing and metering on the falling materials through the falling material conveying device and conveys the falling materials to an ore material screening device for screening, after screening, large, medium and small-grained ore materials can be separated, wherein the large-grained ore materials are collected into an aggregate collecting device to be used as aggregate finished products, the medium-grained materials are crushed and shaped through a shaping machine and then screened through a fine sand screen, the part discarded through the fine sand screen is collected into a medium-grained material collecting device as medium-grained materials, the part screened through the fine sand screen and the part screened through the ore material are small-grained materials, namely fine sand, then the fine sand enters a powder separator and is matched with a fan to suck dust impurities out, after the fine sand is sucked and removed, most of the fine sand can directly fall out of the powder separator, however, since the fine sand is very light, in the process of sucking out dust and impurities, partial fine sand is inevitably sucked away by mistake, the fine sand sucked away by mistake immediately enters a fine sand recovery device to carry out secondary recovery on the fine sand, and then the fine sand recovered by the secondary recovery and the fine sand directly falling out after the powder is removed by the powder concentrator fall into a fine sand loading and transporting device and are loaded into a fine sand loading and transporting vehicle to form a finished fine sand product which is finally delivered out. In conclusion, the invention can efficiently and rapidly produce the finished tailings sand products of fine fraction, medium fraction and coarse fraction, and has the advantages of low cost, high efficiency, stable operation, environmental protection and reliability.

Drawings

FIG. 1 is a schematic view of the present invention.

Fig. 2 is an exploded view of the tailings reclaimer of the present invention.

FIG. 3 is a schematic view of a portion of the enlarged structure at A in FIG. 2

Fig. 4 is a partially enlarged structural diagram of a portion B in fig. 2.

Fig. 5 is a schematic view of the overall structure of the tailings reclaimer of the present invention.

Fig. 6 is a schematic diagram of the usage state of the tailings taking device, wherein the structure of a tailings throwing belt conveyor is shown.

Fig. 7 is an exploded view schematically showing the mineral aggregate screening apparatus according to the present invention.

Fig. 8 is a schematic view showing the construction of a bearing of the mineral material screening apparatus of the present invention.

Fig. 9 is a partially enlarged structural view of a portion a in fig. 7.

Fig. 10 is a schematic view of a part of the enlarged structure at B in fig. 7.

FIG. 11 is an exploded view of the fine sand recovery apparatus according to the present invention.

FIG. 12 is a schematic view of the construction of a fine sand recovery apparatus according to the present invention.

FIG. 13 is a schematic view of the construction of the fine sand handling device of the present invention.

1. A tailings reclaimer; 2. A blanking conveying device;

3. a mineral aggregate screening device; 4. An aggregate collecting device;

5. a shaping machine; 6. Fine sand screening;

7. collecting the medium particles; 8. Selecting a powder machine;

9. a fine sand recovery device; 10. A dust collecting device;

11. a fan; 12. A fine sand handling device;

13. a transverse rail; 14. wheel of vehicle

15. A wheel carrier; 16. A hanging plate;

17. a sieve plate; 18. A sieve base;

19. a vibrating device; 20. A fine mesh aperture portion;

21. a middle mesh sieve portion; 22. A fine particle blanking channel;

23. a medium particle blanking channel; 24. partition board

25. An aggregate guide groove; 26. A medium particle material leading-in groove;

27. a fine sand blanking channel; 28. A top opening of the box;

29. a bottom opening of the box; 30. A hopper-shaped box body;

31. a suspension plate; 32. A suspension arm;

33. a particle-passing blanking area; 34. dust discharging and guiding area

35. A dust collection channel; 36. A dust introduction pipe;

38. a blanking pipe;

39. a material distributing nozzle; 40. A material distributing bin;

41. a drive shaft; 42. A drive motor;

43. a bin falling port; 44. drop-in pipeline

45. A baffle plate; 46. A lifting screw;

47. a closed loop chain; 48. A convex ring part;

49. a key tooth; 50. Vertically arranging a bearing;

51. a chain guide bearing; 52. A push chain bearing;

53. enclosing eaves; 54. perforation

55. A spiral cavity; 56. A drive shaft;

57. a drive handle; 58. A hood top surface;

59. a cover vertical surface; 60. An inner end frame plate;

61. an outer end frame plate; 62. A front frame panel;

63. a rear bezel; 64. Hanging the plate;

65. hanging eaves at the front edge; 66. Hanging eaves on the back edge;

67. a rubber strip; 68. Riveting;

69. a traction screw; 70. A device frame;

71. throwing tailings to a belt conveyor; 72 parking area.

Detailed Description

For those skilled in the art to further understand the features and technical content of the present invention, refer to the following detailed description and the accompanying drawings.

Referring to fig. 1 to 13, the invention provides a comprehensive resource utilization and treatment device for metal tailings, which comprises a tailings taking device 1, a blanking conveying device 2, a mineral aggregate screening device 3, an aggregate collecting device 4, a shaping machine 5, a fine sand screen 6, a medium particle collecting device 7, a powder concentrator 8, a fine sand recycling device 9, a dust collecting device 10, a fan 11 and a fine sand loading and transporting device 12, wherein the tailings taking device comprises a track erected above a tailings throwing and conveying belt conveyor 71, a rail car and a traction device for pushing and pulling the rail car to run on the track, the track is two horizontal rails 13, the rail car comprises a car body, wheels 14 sliding on the two horizontal rails and a wheel carrier 15 connecting the car body and the wheels, the car body is connected with a horizontal vertical plate 16, and the vertical plate extends downwards through the space between the two horizontal rails and extends to the lower part of the track to be adjacent to tailings The tailing material is stirred from the tailing throwing belt conveyor on the top surface of the throwing belt conveyor, the traction device comprises a traction rod and a power device used for pushing and pulling the traction rod, the inner end of the traction rod is connected with the vehicle body, the outer end of the traction rod is connected with the power device, the blanking conveying device comprises a metering belt conveyor which is arranged below the tailing taking device and used for carrying, weighing and conveying the drooping plate stirred mineral material to the mineral material screening device, the mineral material screening device comprises a vibrating screen with a screen plate 17 and a screen seat 18, the screen plate is arranged on the top surface of the screen seat, the screen seat is provided with a vibrating device 19 which drives the screen seat to drive the screen plate to vibrate so that the tailing material on the screen plate can be popped and screened from front to back, and the front section of the screen plate is a fine-mesh hole part 20, The rear section is a middle-mesh sieve hole part 21, the mesh opening of the middle-mesh sieve hole part is larger than the mesh opening of the fine-mesh sieve hole part, the sieve base is provided with a fine particle blanking channel 22 penetrating through the sieve base from top to bottom at the position corresponding to the fine-mesh sieve hole part, a medium particle blanking channel 23 penetrating through the sieve base from top to bottom at the position corresponding to the middle-mesh sieve hole part, a partition plate 24 for isolating the fine particle blanking channel and the medium particle blanking channel from each other is arranged between the fine particle blanking channel and the medium particle blanking channel, the front section of the sieve plate is erected below the blanking side of the metering belt conveyor and used for bearing the blanking position of the metering belt conveyor, the aggregate collecting device is provided with an aggregate inlet, the aggregate inlet is externally connected with an aggregate guiding groove 25, the front section of the aggregate guiding groove is erected below the rear section of the sieve plate and used for bearing the aggregate screened by the vibrating screen, and the shaping machine is connected with the bottom opening of the medium particle blanking channel through a feeding opening of the shaping machine, the fine sand screen is erected below the discharge port of the shaping machine, the mesh aperture of the fine sand screen is the same as that of the mesh aperture of the fine mesh screen, the medium-grain collecting device is provided with a medium-grain inlet, a medium-grain inlet groove 26 is connected outside the medium-grain inlet, the front section of the medium-grain inlet groove is erected below the rear section of the fine sand screen and used for carrying and connecting the medium-grain screened by the fine sand screen, a fine sand blanking channel 27 is connected below the fine sand screen, the grain inlet of the powder concentrator is connected to the bottom opening of the fine grain blanking channel and the bottom opening of the fine sand blanking channel, the fine sand recycling device comprises a suspension device used for suspension, and further comprises a bucket-shaped box body 30 with a box top opening 28 and a box bottom opening 29, the suspension device is provided with a suspension plate 31 and a suspension arm 32, the suspension arm is connected to the suspension plate above the box top opening in a hanging manner, the lower section of the suspension plate extends into the upper section space of the bucket-shaped box body through the box top opening and enables the upper section of the bucket-shaped box body to extend into the upper space of the bucket-shaped box body The two sides of the segment space are separated into a structure with one side being a particle passing blanking area 33 and the other side being a dust discharging area 34, the bucket-shaped box body is provided with a sand material inlet on the box wall of the particle passing blanking area, a dust outlet on the box wall of the dust discharging area, a dust suction channel 35 is connected outside the sand material inlet, the front end of the dust suction channel is connected with the dust suction outlet of the powder concentrator, the dust collecting device is provided with a dust inlet, a dust introducing pipeline 36 is connected outside the dust inlet, the front end of the dust introducing pipeline is connected with the dust outlet, the air outlet of the fan is arranged at the position where the front section of the dust suction channel is adjacent to the powder concentrator, and the return air inlet is arranged at the position where the tail section of the dust introducing pipeline is adjacent to the dust collecting device, so that the output air of the fan is guided into the bucket-shaped box body through the sand material inlet, then the bucket-shaped box body is guided out through the dust outlet, the bucket-shaped box body is guided back to the fan and finally guided back to the fan and the bucket-shaped box body Blowing dust into the dust collecting device through the dust inlet, wherein the fine sand loading and transporting device comprises a blanking pipeline 38, a distributing nozzle 39, a distributing bin 40 and a transmission shaft lever 41, the distributing bin is provided with a pipeline through hole at the center of the top surface of the distributing bin, a shaft lever through hole is arranged at the position of the bottom surface of the distributing bin, which is opposite to the pipeline through hole, the upper end of the blanking pipeline is connected with the bottom opening of the hopper-shaped box body, the lower section of the blanking pipeline extends into the distributing bin through the pipeline through hole, the upper section of the transmission shaft lever extends into the distributing bin through the shaft lever through hole, the distributing nozzle is a skimming pipe arranged in the distributing bin, the upper end of the distributing nozzle is connected to the lower end of the blanking pipeline in a rotatable manner, the upper end of the transmission shaft lever is connected to the bottom surface of the distributing bin, the lower section of the transmission shaft lever is connected to a driving motor 42 which is used for driving the distributing nozzle to rotate, the bottom surface of the interior of the material distribution bin is provided with a plurality of bin falling ports 43 which are arranged at intervals, each bin falling port penetrates through the bottom surface of the material distribution bin, an independent falling pipeline 44 is connected outside the material distribution bin, and the bin falling ports are arranged on the outer edge of the bottom surface of the material distribution bin corresponding to the position of a lower port passing path of the rotating process of the material distribution nozzle.

The working principle of the invention is as follows: the tailing taking device carries out shifting and taking operation on a tailing throwing and conveying belt conveyor in the tailing conveying process of a mine enterprise conveying the tailings to a stacking place, then, the blanking is weighed in real time through a blanking conveying device and conveyed to an ore material screening device for screening, after screening, large, medium and small-grained ore materials can be separated, wherein large-grained ore materials are collected into an aggregate collecting device and can be used as aggregate finished products, medium-grained ore materials are crushed and shaped through a shaping machine and then screened through a fine sand screen, the part discarded through the fine sand screen is used as medium-grained ore materials and is collected into a medium-grained ore material collecting device, the part screened through the fine sand screen and the part screened through the ore material are small-grained fine sand, the fine sand enters a powder separator and is matched with a fan to suck dust impurities out, most of the fine sand is directly fallen out of the powder separator after dust is sucked, but the fine sand is light, in the process of sucking out dust impurities, partial fine sand is inevitably sucked away by mistake, the fine sand sucked away by mistake immediately enters a fine sand recovery device to carry out secondary recovery on the fine sand, and then the fine sand recovered by the secondary recovery and the fine sand directly falling out after the powder is removed by a powder concentrator fall into a fine sand loading and transporting device and are loaded into a fine sand loading and transporting vehicle to form a fine sand finished product which finally leaves the factory. In conclusion, the invention can efficiently and rapidly produce the finished tailings sand products of fine fraction, medium fraction and coarse fraction, and has the advantages of low cost, high efficiency, stable operation, environmental protection and reliability, in particular to the following steps:

the tailing taking device is erected above the tailing throwing and conveying belt conveyor from one side of the tailing throwing and conveying belt conveyor, the laying direction of a track forms a certain angle with the conveying direction of the tailing throwing and conveying belt conveyor, the angle can be 45 degrees or other angles, then a rail car is pulled above the tailing throwing and conveying belt conveyor through the traction device, the lower edge of a vertical plate is suspended on a position close to the upper side of the top surface of the tailing throwing and conveying belt conveyor, in this way, when tailing materials on the tailing throwing and conveying belt conveyor reach the position of the vertical plate, the tailing materials are blocked by the vertical plate and fall off from the tailing throwing and conveying belt conveyor along one side of the vertical plate, the tailing recycling operation in a first link is realized, in the tailing taking process, the rail car can be pushed and pulled to slide on the track through the traction device, and the relative position of the vertical plate suspended above the tailing throwing and conveying belt conveyor can be flexibly regulated and controlled, and the free control of the material taking amount in unit time is realized, so that the material taking is realized as required, the working efficiency is obviously improved, the taken tailing materials do not need to be piled again before processing and recycling, and the pollution problem of the tailing material taking to a subsequent processing and recycling site is avoided. In addition, the two tracks are arranged, so that the structure is more stable, the running is more reliable, and the power device can be an electric device or a manual device, which is not limited herein.

The blanking conveying device in the invention is preferably a metering belt conveyor, which is a belt conveyor type conveying device with a weighing function, and is the prior art, and the details are not repeated.

The mineral material screening device of the invention has a screen plate with a front section of a fine screen hole part and a rear section of a middle screen hole part, wherein the screen hole diameter of the middle screen hole part is larger than that of the fine screen hole part, the screen hole diameter of the fine screen hole part is preferably 3 mm, the screen hole diameter of the middle screen hole part is preferably 4.75 mm, or other screen holes are not limited, wherein the fine screen hole part preferably accounts for two thirds of the length of the screen plate, and the middle screen hole part preferably accounts for one third of the length of the screen plate, thus realizing three-third screening operation according to different particle size products, namely, the tailings of three-third fine particle size of fine particle size, middle particle size and coarse particle size fall from the fine screen hole part and enter a powder concentrator through a fine particle blanking channel, the tailings of middle particle size fall from the middle screen hole part and enter a shaping machine through a middle particle channel, and then are screened through a fine sand screen, the part discarded by the screen is used as a medium-grained sand finished product and is put into a medium-grained material collecting device, and the screened part is also fine-grained material and then enters a powder concentrator.

The fine sand recovery device is connected with the dust suction outlet of the powder concentrator through the sand material inlet, guides the dust suction outlet into the output air of the fan, guides the air back to the return air inlet of the fan through the dust guide outlet, thereby forming closed-loop air flow, under the driving of the closed-loop air flow, part of fine sand is wrapped and sucked out of the powder concentrator along with the dust, enters the hopper-shaped box body through the sand material inlet, due to the blocking of the suspension plate, the air speed at the dust discharge area side in the hopper-shaped box body is lower than the air speed at the particle passing blanking area side, so that the kinetic energy provided by the wind power at the dust discharge area side can only drive the dust with lighter weight to be guided out from the dust guide outlet, and the wrapped fine sand can directly fall at the particle passing blanking area side under the self-gravity effect and fall out through the box bottom opening of the hopper-shaped box body, thereby realizing the fine sand recovery in the ore sand powder removing process, obviously reducing the fine sand loss rate and improving the fine sand obtaining efficiency, waste is reduced.

The shaping machine, the powder concentrator and the fan in the invention are all in the prior art, and are not described herein again. The shaping machine enables 30% of medium-sized particles to collide, crack and grind into fine particles through shaking kinetic energy, the air outlet and the air return opening of the fan are arranged at positions as long as the output air of the air outlet of the fan can suck dust out of the powder concentrator, then the dust is guided into the hopper-shaped box body through the sand material inlet, then the dust is guided out of the hopper-shaped box body through the dust guide outlet and finally guided back to the air return opening of the fan, and meanwhile the dust is blown into the dust collecting device through the dust inlet, the air outlet can be preferably arranged on the dust suction channel, the powder concentrator can also be arranged on the powder concentrator, the air return opening is preferably arranged on the dust guide pipeline, and the air return opening can also be arranged on the dust collecting device, and the arrangement is not limited.

In the invention, the connection between the granule inlet of the powder concentrator and the bottom opening of the fine particle blanking channel and the bottom opening of the fine sand blanking channel can be realized by flexible pipelines, the flexible pipelines can be connected to the bottom opening of the fine particle blanking channel by rivets, can be supported by a bearing device, or can be communicated in other modes, as long as the fine sand can be guided into the powder concentrator, and the connection is not limited.

The fine sand loading and transporting device is arranged on the roof of a loading workshop, the loading workshop is provided with a plurality of parking areas 72, each parking area can be used for parking one transport vehicle, the vehicle-by-vehicle queuing is not needed, the space occupation is reduced, the loading pipeline extends to each parking area, therefore, the transport vehicles in the parking areas only need to enter the parking areas, the container of the transport vehicles is positioned below the blanking outlet below the loading pipeline, and thus, fine sand finished products after the last link of a production line can be directly loaded on the transport vehicles, and the low loading and transporting cost is reduced. Under driving motor's drive, divide the material mouthpiece to be circular motion, fall into the fine sand finished product respectively with the fine sand in proper order and fall into the dress pipeline and then realize the loading operation, high-efficient environmental protection, with low costs and the security is high.

At present, regarding the use of the tailings recycled finished product, the tailings sand finished products of fine fraction, medium fraction and coarse fraction can meet various requirements of different application scenes, such as sand for preparing special mortar, sand for preparing common mortar, sand for building and the like, and are directly applicable tailings recycled finished products.

Example 1: further, in the invention, the mineral aggregate screening device further comprises a baffle 45 arranged above the screen plate, a driving device used for providing lifting power and a transmission device used for transmitting the lifting power to the baffle, wherein the transmission device is arranged on the baffle and is connected to the driving device in a driving way. In this embodiment, the baffle is installed in the sieve top of shale shaker, because the setting of baffle, the tailing material of as the sieve material is jumped by sieve vibrating force and will be touch the baffle, under the collision of baffle, the tailing material will be rebounded the sifter of sieve, thereby compare the free fall mode, can increase the frequency that the tailing material sieved and jumped in unit interval, and then fully contact with the sifter, promote screening efficiency, and can carry out lifting control to the baffle through drive arrangement drive transmission, thereby the interval of regulation and control baffle and sieve, can realize sieving the control of jump frequency to the tailing material from this, and simultaneously, lifting control to the baffle can also realize carrying out the pertinence adjustment according to the difference of crossing the tailing material pile up degree, be suitable for the high-efficient screening that the tailing material that the degree of piling up is different sieves.

Example 2: further, in the present invention, the transmission device includes a bearing, a lifting screw 46 and a closed loop chain 47, the inner ring of the bearing is provided with a convex ring portion 48 extending outward to one side of the self-axial direction, the convex ring portion is a gear provided with key teeth 49 on the outer peripheral surface, the bearing includes a horizontal bearing axially perpendicular to the top surface of the baffle plate and a vertical bearing 50 having an axis perpendicular to the side surface of the baffle plate, the horizontal bearing is embedded in the bottom surface of the baffle plate through the self outer ring and is protruded on the top surface of the baffle plate through the self convex ring portion, the horizontal bearing includes a plurality of chain guide bearings 51 arranged at intervals along the outer edge of the top surface of the baffle plate and jointly support and tighten the closed loop chain, each chain guide bearing is engaged and hung with the closed loop chain through the respective key teeth, the horizontal bearing further includes at least one chain pushing bearing 52 engaged and hung with the closed loop chain through the respective key teeth on the outer side of the closed loop chain, the utility model discloses a chain guide bearing's sieve, including baffle, lifting screw, vertical bearing, drive arrangement, sieve seat, lifting screw, baffle, horizontal bearing circle, drive arrangement, lifting screw top via stretch into in the baffle below to connect firmly each other in the inner ring of chain guide bearing, the outer fringe of baffle upwards extends to be equipped with encloses eaves 53, horizontal bearing circle in enclose in the eaves, erect the bearing and inlay through self outer loop and be in enclose the outer face of eaves and through self bulge portion be in enclose on the inner face of eaves, erect the bearing set up with on the position that chain guide bearing corresponds and with chain guide passes through respective key tooth meshing and link to each other, drive arrangement via enclose the eaves outside inwards stretch into connect firmly each other in the inner ring of erecting the bearing, the sieve is equipped with perforation 54 on the position that corresponds lifting screw, the sieve seat is in corresponding be equipped with spiral shell 55 on the perforated position, the lifting screw lower extreme passes perforation and spiral shell income spiral shell intracavity. In this embodiment, the lower segment spiral shell of lifting screw goes into the spiral shell intracavity of sieve seat, can cooperate along with the shale shaker vibration synchronization on the one hand, on the other hand passes through drive arrangement's commentaries on classics, erect and put the bearing, chain pushing bearing, closed loop chain, chain guiding bearing, lifting screw interlock in order, the reduction of baffle can be realized to the spiral shell intracavity that lifting screw hypomere went into the sieve seat downwards, lifting screw hypomere upwards spiral shell changes, can realize the lifting of baffle, through the setting to spiral shell chamber degree of depth and lifting screw length, baffle lift space is preferred adjustable between 300 millimeters to 400 millimeters, also can be other scopes, do not add the injecing here, thereby adjust and control the frequency of sieving of crossing the tailing mineral aggregate.

Example 3: further, in the invention, the vibrating screen is a rectangular screen, the baffle is a rectangular plate, and the rectangular plate is provided with the chain guide bearings at four corners of the rectangular plate. In the embodiment, the baffle is arranged to be rectangular to match with the vibrating screen with the rectangular screen plate, and the chain guide bearings are arranged at four corners of the rectangular plate, so that the vibrating screen has the most stable structure and the effects of simplest structure and lowest cost.

Example 4: further, in the present invention, the driving device has a driving shaft 56, a driving handle 57 or a driving motor connected to an outer end of the driving shaft, and inner ends of the driving shaft are extended inward into the inner ring of the vertical bearing through an outer side of the eave and fixed to each other. In this embodiment, drive arrangement can be manual device or electric actuator, and the regulation and control mode is simple and convenient, can further promote work efficiency.

Example 5: further, in the present invention, the mineral aggregate screening device further comprises a top cover which is used for buckling the baffle plate and the screen plate cover from top to bottom in the device so as to prevent the tailing mineral aggregates on the screen plate from overflowing from two sides of the screen plate in the screening process, the top cover is provided with a cover top surface 58 and cover vertical surfaces 59 which vertically extend downwards along the outer edges of two sides of the cover top surface, and the lower edges of the cover vertical surfaces are connected to the outer surfaces of the corresponding sides of the upper section of the screen seat. In this embodiment, the connection of cover vertical plane and sieve seat can be through rivet connection, also can be other modes, does not add here and restricts, can be detachable, so, conveniently maintain the renewal, and the overhead guard can prevent effectively that the tailing material from overflowing from the sieve both sides and falling sieving the in-process, avoids extravagant also to avoid utilizing the environment in place to the tailing processing to cause the pollution destruction.

Example 6: furthermore, in the invention, the vehicle body is provided with the vehicle body frame which is formed by integrally enclosing the inner end frame plate 60, the outer end frame plate 61, the front frame plate 62 and the rear frame plate 63, and the inner end of the traction rod is connected to the inner end frame plate of the vehicle body frame, so that the vehicle body has fewer materials, the vehicle body is lighter, the manufacturing cost of the vehicle body is saved, and the traction device is more convenient to push and pull for traction, thereby saving more energy and labor; the top end of the hanging plate is connected with a hanging plate 64 which is horizontally arranged, the front edge of the hanging plate is provided with a front edge hanging eave 65 which extends downwards, the rear edge of the hanging plate is provided with a rear edge hanging eave 66 which extends downwards, the front frame plate is provided with a front eave clamping and hanging table (not shown in the figure) which extends towards the vehicle body frame, the rear frame plate is provided with a rear eave clamping and hanging table (not shown in the figure) which extends towards the vehicle body frame, the hanging plate is clamped and hung on the front eave clamping and hanging table of the front frame plate through the front edge hanging eave, the hanging plate is clamped and hung on the rear eave clamping and hanging table of the rear frame plate through the rear edge hanging eave, and the hanging plate are connected into a whole and clamped and hung on the vehicle body frame, so that a detachable structure is formed, and if the hanging plate is deformed, damaged, rusted and the like, the maintenance and the replacement are convenient; the rubber strip 67 is fixedly coated on the lower edge of the vertical plate, the connection between the rubber strip and the vertical plate can be cemented or can be connected in a rivet or other detachable or non-detachable mode, no limitation is imposed on the connection, the rubber strip can protect the vertical plate from being affected with damp and corroded after long-term operation upwards, and the clamping of tailings hard materials can be avoided downwards, so that the top surface of the tailings throwing and conveying belt conveyor is protected from being scratched, meanwhile, the vertical plate is arranged to be close to the top surface of the tailings throwing and conveying belt conveyor as much as possible, and the material taking efficiency is improved; the rubber strip is detachably wrapped and fixed on the lower edge of the vertical plate through a rivet 68, and the connection between the rubber strip and the vertical plate can be detachable, so that the maintenance and the replacement of the rubber strip are facilitated; the vertical plate is of a structure which is gradually narrowed from top to bottom and has an inverted triangle cross section, the material consumption of the vertical plate is minimum, the manufacturing cost is reduced, and the rubber strip is more convenient to mount; the outer section of the traction rod is a traction screw 69 which is screwed on the power device, the inner end of the traction rod is a shaft head end (not shown in the figure), the outer end of the vehicle body is connected with a shaft seat (not shown in the figure), the traction rod is connected on the shaft seat in a rotatable manner through the shaft head end, the shaft seat can be a bearing structure or other structures which can be used for connecting the shaft head end in a rotatable manner, the shaft head end can be a shaft column structure or other structures which can be connected with the shaft seat in a rotatable manner, and the limitation is not imposed on the shaft head end, so that the traction screw can be screwed and stretched under the driving of the power device, and the sliding fixing position of the rail vehicle on the rail can be flexibly, accurately, stably and reliably regulated; the power device comprises a device frame 70 which penetrates through the traction screw rod in a threaded mode and a driving motor (not shown in the figure, the power device is the driving motor, power is stable and durable, working efficiency is higher, the traction screw rod penetrates through the device frame, the structure is more stable, and smoothness and durability of push-pull regulation and control of the rail car are ensured.

Example 7: furthermore, in the invention, the suspension arm is a lifter capable of regulating and controlling the suspension plate to lift, and the suspension plate can be controlled by the lifter to lift, so that the integral regulation and control of the wind speeds at two sides of the particle-passing blanking area and the dust discharging and guiding area can be realized, and the dust-removing device is suitable for dust discharging and fine sand recovery with different particle volumes; the upper section of the hopper-shaped box body is square or rectangular, the lower section of the hopper-shaped box body is an isosceles trapezoid gradually narrowing from top to bottom, the wind speed can be adjusted to 30 meters per second and correspondingly to the wind speed of the passing grain blanking area side through the lifting of the adjusting suspension plate in the actual production process, the wind speed of the dust discharging area side is 10 meters per second, the optimal setting that the fine sand with grain size below 3 millimeters can be recovered to achieve the optimal efficiency when dust is discharged is set, and the wind speed can be adjusted to other wind speed levels to be suitable for recovering the fine sand with different grain sizes, and limitation is not required.

Example 8: furthermore, in the invention, a driving bearing (not shown in the figure) is arranged in the material distribution bin, the driving bearing is fixedly connected to the lower port of the blanking pipeline through an inner ring of the driving bearing and fixedly connected to the upper port of the material distribution nozzle through an outer ring of the driving bearing, the blanking pipeline and the material distribution nozzle can be connected in a shaft-rotatable manner through the driving bearing, the structure is stable, and the operation is stable; the material distributing pipe mouth is a 'skimming' pipe which is gradually narrowed from top to bottom, and the material distributing pipe mouth is gradually narrowed from top to bottom, so that the falling point can be ensured to be accurate, and the material distributing pipe mouth is safe and practical while the sand falling process is ensured to be smooth.

Example 9: furthermore, the invention also comprises a central controller for electrically controlling the operation of the driving motor, the metering belt conveyor, the driving motor, the vibrating device, the shaping machine, the powder concentrator, the fan, the lifter and the driving motor. In this embodiment, the central controller can control the above electrical devices to operate coordinately, to realize production according to demand and loading along with production, if the driving motor can control the rail car to draw to take materials as required to enter a subsequent processing link only by inputting the loading amount, correspondingly, the metering belt conveyor can give a metering result and feed back to the central controller according to the metering result, to act as a running reaction to subsequent shutdown or continued production, the drive motor is controlled by the central controller, the baffle is lifted according to the amount of the sieved materials, the sieving bounce vibration frequency of the mineral materials is coordinated, the vibration device regulates and controls the matched vibration frequency under the control of the central controller, and similarly, the shaping machine, the powder concentrator, the fan and the elevator driving motor are automatically coordinated and matched under the control of the central controller, so that the full automation of the recycling comprehensive utilization treatment of the metal tailings is realized from the material taking production to the finished product loading.

However, the above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, so that the equivalent structural changes made by using the contents of the present specification and the attached drawings are included in the scope of the present invention.

Claims (10)

1. A comprehensive recycling treatment device for metal tailings is characterized by comprising a tailings taking device (1), a blanking conveying device (2), a mineral aggregate screening device (3), an aggregate collecting device (4), a shaping machine (5), a fine sand screen (6), a medium grain collecting device (7), a powder selecting machine (8), a fine sand recycling device (9), a dust collecting device (10), a fan (11) and a fine sand loading and transporting device (12), wherein the tailings taking device comprises a track, a rail car and a traction device, the track is used for being erected above a tailings throwing and conveying belt conveyor, the traction device is used for pushing and pulling the rail car to run on the track, the track is two horizontal rails (13), the rail car comprises a car body, wheels (14) sliding on the two horizontal rails, and a wheel carrier (15) connecting the car body and the wheels, the mine tailing dumping device comprises a vehicle body, a vertical plate (16) is arranged on the vehicle body, the vertical plate extends downwards to extend to the position, close to the top surface of a mine tailing dumping belt conveyor, between two transverse rails and is used for dumping mine tailing from the mine tailing dumping belt conveyor, the traction device comprises a traction rod and a power device used for pushing and pulling the traction rod, the inner end of the traction rod is connected to the vehicle body, the outer end of the traction rod is connected to the power device, the blanking conveying device comprises a metering belt conveyor which is arranged below a mine tailing taking device and is used for carrying, weighing and conveying the vertical plate dumping mine tailing to a mine tailing screening device, the mine tailing screening device comprises a vibrating screen with a screen plate (17) and a screen seat (18), the screen plate is arranged on the top surface of the screen seat, and the screen seat is provided with a driving screen plate which drives the screen seat to vibrate so that the mine tailing on the screen plate can be dumped from front to back and fall through the screen plate A vibrating device (19) of the screen, the front section of the screen plate is a fine-mesh hole part (20), the rear section of the screen plate is a middle-mesh hole part (21), the mesh aperture of the middle-mesh hole part is larger than that of the fine-mesh hole part, a fine particle blanking channel (22) penetrating through the screen seat from top to bottom is arranged at the position corresponding to the fine-mesh hole part, a medium particle blanking channel (23) penetrating through the screen seat from top to bottom is arranged at the position corresponding to the middle-mesh hole part, a partition plate (24) for isolating the fine particle blanking channel and the medium particle blanking channel from each other is arranged between the fine particle blanking channel and the medium particle blanking channel, the front section of the screen plate is erected at the position below the blanking side of the metering belt conveyor for receiving the blanking of the metering belt conveyor, the aggregate collecting device is provided with an aggregate inlet, an aggregate leading-in groove (25) is connected outside the aggregate inlet, the front section of the aggregate leading-in is erected at the position below the rear section of the screen plate for carrying the aggregate discarded by the vibrating screen, the shaper is connected to the bottom opening of the medium particle blanking channel through a feeding opening of the shaper, the fine sand screen is erected below a discharging opening of the shaper, the aperture of the screen hole is the same as that of the screen hole of the fine screen hole, the medium particle collecting device is provided with a medium particle inlet, the medium particle inlet is externally connected with a medium particle leading-in groove (26), the front section of the medium particle leading-in groove is erected below the rear section of the fine sand screen and is used for carrying the discarded medium particles of the fine sand screen, the fine sand screen is connected with a fine sand blanking channel (27) below, the particle inlet of the powder separator is connected to the bottom opening of the fine particle blanking channel and the bottom opening of the fine sand blanking channel, the fine sand recovering device comprises a suspension device used for suspension, and a hopper-shaped box body (30) provided with a box top opening (28) and a box bottom opening (29), the suspension device is provided with a suspension plate (31) and a suspension arm (32), the suspension arm is hung above the top opening of the box and connected to the suspension plate, the lower section of the suspension plate extends into the upper space of the bucket-shaped box body through the top opening of the box and separates two sides of the upper space of the bucket-shaped box body into a structure with a particle-passing blanking area (33) on one side and a dust discharging area (34) on the other side, the bucket-shaped box body is provided with a sand material inlet on the box wall of the particle-passing blanking area side and a dust outlet on the box wall of the dust discharging area side, the sand material inlet is externally connected with a dust collection channel (35), the front end of the dust collection channel is connected with the dust suction outlet of the powder separator, the dust collection device is provided with a dust inlet, the dust inlet is externally connected with a dust introduction pipeline (36), the front end of the dust introduction pipeline is connected with the dust outlet, and the air outlet of the fan is arranged at the position, close to the powder separator, of the front section of the dust collection channel, The fine sand loading and transporting device comprises a blanking pipeline (38), a distributing nozzle (39), a distributing bin (40) and a transmission shaft lever (41), wherein a pipeline through hole is formed in the central position of the top surface of the distributing bin, a shaft lever through hole is formed in the position, opposite to the pipeline through hole, of the center of the bottom surface of the distributing bin, the upper end of the blanking pipeline is connected with a bin bottom opening of the hopper-shaped box body, the lower section of the blanking pipeline extends into the distributing bin through the pipeline through hole, and the upper section of the transmission shaft lever extends into the distributing bin through the shaft lever through hole, the material distributing device is characterized in that the material distributing nozzle is a skimming pipe nozzle arranged in the material distributing bin, the upper end opening of the material distributing nozzle is connected to the lower end opening of the blanking pipeline in a rotatable mode, the upper end of the transmission shaft rod is fixedly connected to the bottom surface of the material distributing nozzle, the lower section of the transmission shaft rod is connected with a driving motor (42) which is used for driving the transmission shaft rod to rotate outside the material distributing bin so as to drive the material distributing nozzle to rotate, the inner bottom surface of the material distributing bin is provided with a plurality of blanking openings (43) which are arranged at intervals, each blanking opening penetrates through the bottom surface of the material distributing bin, an independent blanking pipeline (44) is connected outside the material distributing bin, and the blanking openings are arranged at the positions, corresponding to the lower end opening passing paths of the material distributing nozzle in the rotating process, of the bottom surface of the material distributing bin.

2. The metal tailings recycling and comprehensive utilization processing apparatus as claimed in claim 1, wherein the mineral aggregate screening apparatus further comprises a baffle (45) disposed above the screen plate, a driving device for providing lifting power, and a transmission device for transmitting the lifting power to the baffle, and the transmission device is mounted on the baffle and is connected to the driving device in a driving manner.

3. The metal tailings recycling comprehensive utilization processing apparatus according to claim 2, wherein the transmission device includes a bearing, a lifting screw (46) and a closed-loop chain (47), an inner ring of the bearing is provided with a convex ring portion (48) extending outward to one side of the axial direction of the bearing, the convex ring portion is a gear provided with key teeth (49) on an outer peripheral surface, the bearing includes a horizontal bearing arranged axially perpendicular to the top surface of the baffle and a vertical bearing (50) having an axis perpendicular to the side surface of the baffle, the horizontal bearing is embedded in the bottom surface of the baffle through an outer ring of the horizontal bearing and is exposed on the top surface of the baffle through the convex ring portion of the horizontal bearing, the horizontal bearing includes a plurality of chain guide bearings (51) arranged at intervals along the outer edge of the top surface of the baffle and used for bracing the closed-loop chain together, and each chain guide bearing is engaged with the closed-loop chain through a respective key tooth, the horizontal bearing also comprises at least one push chain bearing (52) which is meshed and hung with the closed loop chain through respective key teeth on the outer side of the closed loop chain, the top end of the lifting screw rod extends into the inner ring of the guide chain bearing upwards through the lower part of the baffle plate and is connected with each other in a fixed manner, the outer edge of the baffle plate extends upwards to form an enclosing eave (53), the horizontal bearing is enclosed in the enclosing eave, the vertical bearing is embedded and fixed in the outer surface of the enclosing eave through the outer ring of the vertical bearing and is exposed on the inner surface of the enclosing eave through the convex ring part of the vertical bearing, the vertical bearing is arranged on the position corresponding to the push chain bearing and is meshed and connected with the push chain bearing through respective key teeth, the driving device extends inwards into the inner ring of the vertical bearing through the outer side of the enclosing eave and is connected with each other in a fixed manner, and the sieve plate is provided with a through hole (54) on the position corresponding to the lifting screw rod, the sieve seat is provided with a spiral cavity (55) at the position corresponding to the through hole, and the lower end of the lifting screw penetrates through the through hole and is screwed into the spiral cavity.

4. The metal tailings recycling and comprehensive utilization processing apparatus of claim 3, wherein the vibrating screen is a rectangular screen, the baffle is a rectangular plate, and the rectangular plate is provided with the guide chain bearings at its four corners.

5. The metal tailings recycling and comprehensive utilization treatment device according to claim 4, wherein the driving device comprises a driving shaft (56), a driving handle (57) or a driving motor connected to the outer end of the driving shaft, and the inner end of the driving shaft extends inwards into the inner ring of the vertical bearing through the outer side of the eave and is fixed with each other.

6. The apparatus for recycling and processing metal tailings as claimed in claim 5, wherein the mineral aggregate screening device further comprises a top cover which is used for buckling the baffle plate and the screen plate cover from top to bottom in order to prevent the tailing minerals on the screen plate from overflowing from two sides of the screen plate during screening, the top cover is provided with a cover top surface (58) and cover vertical surfaces (59) which are vertically extended downwards along the outer edges of two sides of the cover top surface, and the lower edges of the cover vertical surfaces are connected to the outer surfaces of the corresponding sides of the upper section of the screen seat.

7. The metal tailings recycling comprehensive utilization and treatment device according to any one of claims 1 to 6, wherein the vehicle body has a vehicle body frame formed by an inner end frame plate (60), an outer end frame plate (61), a front frame plate (62) and a rear frame plate (63) in an enclosing manner, the inner end of the drawbar is connected to the inner end frame plate of the vehicle body frame, a horizontally arranged hanging plate (64) is connected to the top end of the hanging plate, a front edge hanging eave (65) extending downwards is arranged at the front edge of the hanging plate, a rear edge hanging eave (66) extending downwards is arranged at the rear edge of the hanging plate, a front eave clamping and hanging table extending towards the vehicle body frame is arranged on the front frame plate, a rear eave clamping and hanging table extending towards the vehicle body frame is arranged on the rear frame plate, and the hanging plate is clamped and hung on the front eave clamping and hanging table of the front frame plate through the front edge hanging eave, the hanging plate is clamped and hung on a rear eave clamping and hanging table of the rear frame plate through the rear edge hanging eave, the lower edge of the hanging plate is fixedly connected and wrapped with a rubber strip (67), the rubber strip is detachably wrapped and fixed on the lower edge of the hanging plate through a rivet (68), the hanging plate is of a structure which is gradually narrowed from top to bottom and has an inverted triangle-shaped cross section, the outer section of the traction rod is a traction screw rod (69) which is screwed on the power device, the inner end of the traction rod is a shaft head end, the outer end of the vehicle body is connected with a shaft seat, the traction rod is connected on the shaft seat in a shaft rotatable mode through the shaft head end, and the power device comprises a device frame (70) which is screwed through the traction screw rod and a driving motor which is in driving connection with the shaft of the traction screw rod.

8. The metal tailings recycling and comprehensive utilization and treatment apparatus of claim 7, wherein the suspension arm is a lifter capable of adjusting and controlling the suspension plate to ascend and descend, and the upper section of the hopper-shaped box body is square or rectangular, and the lower section of the hopper-shaped box body is an isosceles trapezoid gradually narrowing from top to bottom.

9. The metal tailings recycling comprehensive utilization processing apparatus of claim 8, wherein a driving bearing is arranged in the material dividing bin, the driving bearing is fixedly connected to the lower port of the blanking pipeline through an inner ring of the driving bearing, and is fixedly connected to the upper port of the material dividing nozzle through an outer ring of the driving bearing, and the material dividing nozzle is a 'skimming' pipe which is gradually narrowed from top to bottom.

10. The metal tailings recycling and comprehensive utilization processing apparatus of claim 9, further comprising a central controller for electrically controlling the operation of the driving motor, the metering belt conveyor, the driving motor, the vibrating device, the shaping machine, the powder concentrator, the fan, the elevator and the driving motor.

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