CN114042634A

CN114042634A - Efficient automatic dry coal separation equipment for coal mine

Info

Publication number: CN114042634A
Application number: CN202111173559.0A
Authority: CN
Inventors: 张梅芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-02-15

Abstract

The invention discloses high-efficiency automatic dry coal separation equipment for a coal mine, which comprises a preparation box, wherein a screening box is fixedly arranged on the right end surface of the preparation box, a screening cavity is formed in the screening box, a screening machine is arranged in the screening cavity, a sliding box which is communicated downwards is fixedly arranged on the right end surface of the preparation box and positioned on the upper side of the screening box, an absorber is arranged in the sliding box, a transportation cavity is formed in the preparation box, a crushing cavity is formed in the front side of the transportation cavity, the transportation cavity is communicated with the crushing cavity through a connecting cavity, a conveyer is arranged in the transportation cavity, a crusher is arranged in the crushing cavity, dust absorption work is carried out through the air pressure difference between the screening box and the sliding box, the bending of an elastic sheet is controlled through wind power, the starting and stopping of drying work are controlled, the screening plate slides left and right when vibrating up and down through the track of a chute, a gear plate can be inserted into the chute, the distance of left and right movement is changed, the coal mines with different particle sizes are screened.

Description

Efficient automatic dry coal separation equipment for coal mine

Technical Field

The invention relates to the technical field of coal mine screening, in particular to efficient automatic dry coal dressing equipment for a coal mine.

Background

The screening of coal mine is the processing operation of separating the exploited raw coal into different size fractions by using screening equipment and removing visible gangue and sundries in the specified size fractions, and is divided into wet method or dry method separation.

In the dry screening of coal mines, because the air flue of the gas distribution plate of the core component of the dry coal separation device is frequently blocked by sundries such as coal slime and the like, the dry coal separation device cannot normally work, because the air flue is huge in quantity and cannot be cleaned by a mechanical or manual method, meanwhile, dust is easy to scatter around due to vibration screening, the dust cannot be effectively absorbed, when the vibration gas injection screening is carried out, the gas distribution plate can only carry out coal mine screening in a certain granularity interval, the coal mine screening interval can not be changed according to the requirement of a user, and the gas distribution plate is troublesome to replace.

Disclosure of Invention

The invention aims to provide high-efficiency automatic dry coal dressing equipment for a coal mine, which is used for overcoming the defects in the prior art.

The efficient automatic dry coal separation equipment for the coal mine comprises a preparation box, wherein a screening box is fixedly arranged on the right end face of the preparation box, a screening cavity is formed in the screening box, a screening machine used for vibrating and winnowing the coal mine is arranged in the screening cavity, a sliding box which penetrates downwards is fixedly arranged on the right end face of the preparation box and positioned on the upper side of the screening box, an absorber used for absorbing coal dust floating in the screening process is arranged in the sliding box, a transportation cavity is formed in the preparation box, a crushing cavity is formed in the front side of the transportation cavity, the transportation cavity is communicated with the crushing cavity through a connecting cavity, a conveyer capable of transporting the coal mine upwards and drying the coal mine in the air is arranged in the transportation cavity, and a crusher capable of crushing the coal mine is arranged in the crushing cavity;

the screening machine comprises a screening plate arranged in a screening cavity in a sliding mode, the screening plate is arranged in a tilting mode, evenly distributed nozzles are arranged in the screening plate and are arranged on the upper end face of the screening plate, the nozzles extend downwards, the radius of the nozzles gradually increases, each air box is fixedly arranged on the lower side of each nozzle, a sliding plate capable of sliding left and right is arranged on the lower side wall of the screening cavity, non-evenly distributed convex blocks are fixedly arranged on the upper end face of each sliding plate, the left end and the right end of each convex block are oblique, the inclination degree of the left end of each convex block is larger than that of the right end of each convex block, each rolling roller is fixedly arranged at the lower end of the screening plate, and the rollers are tightly attached to the convex blocks.

Preferably, a conveying groove is fixedly arranged on the rear side wall of the screening cavity and is positioned right below the rear side wall of the screening plate, the right end wall of the screening cavity is fixedly provided with evenly distributed chutes, each chute is internally provided with a pulley in a sliding way, the pulleys are fixedly connected with the corresponding screening plates, inclined plates which are inclined and uniformly distributed are fixedly arranged on the upper end surface of each screening plate, the left side wall and the right side wall of the spout are fixedly provided with elastic sealing rings, the lower end surface of each elastic sealing ring is provided with an elastic sheet, a sliding cavity is arranged at the left side of the elastic sheet, a spring switch is arranged in the sliding cavity, an air box is fixedly arranged at the lower side of each screening plate, the lower end surface of one of the air boxes is communicated with a vent pipe, the air boxes are communicated with the nozzles, can insert in the spout and keep off the position board, adjacent two it has the connecting plate that can stretch out and draw back to articulate between the bellows.

Preferably, a power motor is fixedly arranged in the lower side wall of the screening cavity, the upper end of the power motor is in power connection with a power shaft, a power gear is fixedly arranged at the upper end of the power shaft, a meshing cavity is formed in the sliding plate, a rack is fixedly arranged on the inner side wall of the meshing cavity, the power gear is meshed with the rack, thrust springs are connected to the front side wall and the rear side wall of the screening cavity, each thrust spring extends inwards and abuts against the sliding plate, two symmetrical discharge pipes are fixedly arranged on the right side wall of the screening cavity and are respectively located on the front side and the rear side of the screening plate, and a transmission cavity which is inclined backwards is formed in the lower side of the screening cavity.

Preferably, the conveyor comprises a heater fixedly arranged on the left end face of the preparation box, a connecting pipe is communicated with the upper end face of the heater, a baffle is fixedly arranged on the left end face of the preparation box, the heater is communicated with the baffle, a louver cavity is formed in the left side of the transportation cavity and can be communicated with the transportation cavity, louvers which are uniformly distributed from top to bottom are rotatably arranged in the louver cavity, a louver rod is fixedly arranged in each louver, the louver rod extends through the louver cavity from front to back, a control cavity is formed in the rear side of the louver cavity, a wire wheel is fixedly arranged in the control cavity and positioned on the periphery of the louver rod, a pull rope is connected onto the wire wheel and is connected with the elastic sheet, a torsion spring is connected between the left end face of the wire wheel and the control cavity, and a driven cavity is formed in the right side of the louver cavity, driven intracavity and every adjacent two all connect through driven belt power between the louver pole, it is equipped with the transportation pole to rotate in the transportation intracavity, transportation pole downwardly extending gets into the transmission intracavity, the transportation pole with connect through drive belt power between the power shaft, the transport pipe has set firmly on the right side wall in transportation chamber, the transport pipe with screening chamber intercommunication.

Preferably, the breaker is including setting firmly prepare broken motor on the case left end face, the right-hand member power connection of broken motor has broken axle, the sun gear has set firmly on the ten thousand states of broken axle, the meshing has two planetary gear of symmetry from top to bottom on the sun gear, two the driven shaft has all set firmly in the planetary gear, the ring gear has set firmly in the right side wall in broken chamber, ring gear and two planetary gear meshes, the rotation chamber has been seted up on the right side in broken chamber, it is equipped with the sealing washer to rotate the intracavity rotation, broken axle and two all set firmly the crushing roller in the periphery of driven shaft, two the driven shaft extends the entering rightwards rotate the intracavity with sealing washer fixed connection, the pan feeding pipe has set firmly on the left side wall in broken chamber, the hang plate has set firmly on the lower lateral wall in broken chamber.

Preferably, the absorption machine is including setting firmly fan on the sliding box up end, the left side intercommunication of fan has the blowing pipe, the blowing pipe extend left with the connecting pipe intercommunication, the slide upwards extends to run through the sliding box with the blowing pipe intercommunication, the slide has all been seted up on the wall of the front and back both sides of sliding box, the absorption box is in the horizontal slip on the slide, the through-hole has all been seted up on the both ends face around the absorption box.

The invention has the beneficial effects that: the dust absorption work is carried out through the air pressure difference between the screening box and the sliding box, the dust absorption work is simple and efficient, the bending of the elastic sheet is controlled through wind power, so that the conveyor can carry out start-stop control of the drying work under the regulation and control of a spring switch, the screening plate can slide left and right when vibrating up and down through the track of the chute, the gear plate can be inserted into the chute, so that coal mines with different particle sizes can be screened by controlling the track length of the chute, the practicability of the invention is improved, the coal mines can be more rapidly screened when entering the screening cavity by pre-crushing and drying the coal mines, the screening efficiency is improved, the elastic sealing ring is upwards protruded during the work through the elastic sealing ring, the aperture of the elastic sealing ring in the direction of the inclined plate is enlarged, compressed air can smoothly pass through the non-working state, the elastic sealing ring can downwards protrude through the elasticity of the elastic sheet, the aperture of the inclined plate direction is reduced, so that the particles are blocked outside the nozzle, the nozzle is prevented from being blocked, and the particles are blown out by compressed air when the next work is started.

Drawings

FIG. 1 is a schematic external view of an efficient automatic dry coal separation device for coal mines according to the present invention;

FIG. 2 is a schematic diagram of the overall structure of the efficient automatic dry coal preparation equipment for coal mines according to the invention;

FIG. 3 is a schematic view of A-A of FIG. 2 in accordance with the present invention;

FIG. 4 is a front cross-sectional view of the preparation tank of FIG. 2 in accordance with the present invention;

FIG. 5 is a schematic view of B-B of FIG. 2 in accordance with the present invention;

FIG. 6 is an enlarged, fragmentary view of the spout of FIG. 2 of the present invention;

FIG. 7 is an enlarged schematic plan view of the invention at the screen deck of FIG. 2;

FIG. 8 is a schematic cross-sectional view of the rear side wall of the screening chamber of FIG. 2 in accordance with the present invention;

FIG. 9 is a schematic cross-sectional top view of the invention at the power shaft of FIG. 2;

in the figure:

10. preparing a box; 11. a slide box; 12. a screening box; 13. a heater; 14. a connecting pipe; 15. a fan; 16. a blowpipe; 17. a baffle plate; 18. louver blades; 19. a driven chamber; 20. a driven belt; 21. a petiole; 22. a control chamber; 23. a torsion spring; 24. a wire wheel; 25. pulling a rope; 26. a transport pole; 27. a transport chamber; 28. a louvered cavity; 29. a drive belt; 30. a transmission cavity; 31. a feeding pipe; 32. a crushing chamber; 33. a crushing motor; 34. a crushing shaft; 35. a sun gear; 36. a planetary gear; 37. a driven shaft; 38. an engagement cavity; 39. a crushing roller; 40. a ring gear; 41. a seal ring; 42. a rotation chamber; 43. an inclined plate; 44. a connecting cavity; 45. an air box; 46. an absorption tank; 47. a through hole; 48. a slideway; 49. a transport pipe; 50. a screening chamber; 51. screening the plate; 52. a transport trough; 53. a roller; 54. a connecting belt; 55. a sloping plate; 56. a spout; 57. a chute; 58. a vent pipe; 59. a connecting plate; 60. an elastic seal ring; 61. an elastic sheet; 62. a spring switch; 63. a slide chamber; 64. a power motor; 65. a power shaft; 66. a pulley; 67. a power gear; 68. a thrust spring; 69. a rack; 70. a sliding plate; 71. a bump; 72. a discharge pipe; 73. a screening machine; 74. a conveyor; 75. a crusher; 76. an absorption machine.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 9, an efficient and automatic dry coal preparation device for coal mines according to an embodiment of the invention includes a preparation box 10, a screening box 12 is fixedly arranged on the right end surface of the preparation box 10, a screening cavity 50 is arranged in the screening box 12, a screening machine 73 for vibrating and winnowing coal mines is arranged in the screening cavity 50, a downward through sliding box 11 is fixedly arranged on the right end face of the preparation box 10 and on the upper side of the screening box 12, an absorption machine 76 for absorbing coal dust flying out in the screening process is arranged in the sliding box 11, a transportation cavity 27 is arranged in the preparation box 10, a crushing cavity 32 is arranged on the front side of the transportation cavity 27, the transportation cavity 27 is communicated with the crushing cavity 32 through a connecting cavity 44, a conveyer 74 capable of conveying coal mines upwards and performing air drying is arranged in the conveying cavity 27, and a crusher 75 capable of crushing coal mines is arranged in the crushing cavity 32;

the screening machine 73 comprises a screening plate 51 arranged in the screening chamber 50 in a sliding manner, the screening plate 51 is arranged in an inclined manner, nozzles 56 which are uniformly distributed on the upper end face of the screening plate 51 are arranged in the screening plate 51, the downward extension and the radius of each nozzle 56 are gradually increased, an air box 45 is fixedly arranged on the lower side of each nozzle 56, a sliding plate 70 capable of sliding left and right is arranged on the lower side wall of the screening chamber 50, non-uniformly distributed convex blocks 71 are fixedly arranged on the upper end face of the sliding plate 70, the left end and the right end of each convex block 71 are oblique, the inclination degree of the left end of each convex block 71 is larger than that of the right end of each convex block, a rolling roller 53 is fixedly arranged at the lower end of each screening plate 51, and each roller 53 is tightly attached to the corresponding convex block 71.

Optionally, a transportation groove 52 is fixedly arranged on the rear side wall of the screening chamber 50, the transportation groove 52 penetrates through the screening box 12 and is located under the rear side wall of the screening plate 51, sliding grooves 57 which are uniformly distributed are fixedly arranged on the right end wall of the screening chamber 50, pulleys 66 are slidably arranged in the sliding grooves 57, the pulleys 66 are fixedly connected with the corresponding screening plate 51, inclined plates 55 which are inclined and uniformly distributed are fixedly arranged on the upper end surface of each screening plate 51, elastic sealing rings 60 are fixedly arranged on the left and right side walls of the nozzle 56, elastic sheets 61 are arranged on the lower end surface of each elastic sealing ring 60, a sliding chamber 63 is arranged on the left side of each elastic sheet 61, a spring switch 62 is arranged in each sliding chamber 63, air boxes 45 are fixedly arranged on the lower side of each screening plate 51, one air box 45 is communicated with a ventilation pipe 58 on the lower end surface of the air box 45, and the nozzle 56 are communicated, a baffle plate can be inserted into the sliding groove 57, a telescopic connecting plate 59 is hinged between two adjacent air boxes 45, air flow blows into the air boxes 45 through the ventilation pipe 58 and then enters the nozzle 56, due to the gradual reduction of the radius, the elastic sealing ring 60 can be pushed to protrude upwards, so that the air can blow out through the elastic sealing ring 60, meanwhile, the elastic sheet 61 can further protrude upwards along with the elastic sealing ring 60, so as to drive the spring switch 62 to move rightwards, trigger the spring switch 62 to control the conveyor 74 to perform drying work, when the ventilation pipe 58 stops blowing out the air, the elastic sealing ring 60 protrudes downwards under the elastic control of the elastic sheet 61, so as to drive the spring switch 62 to move leftwards, control the conveyor 74 to stop drying, through the left-right sliding of the sliding plate 70, the bump 71 is driven to move left and right, so that the roller 53 touching the bump 71 rolls up and down along the slope of the bump 71, the screening plate 51 is driven to vibrate up and down, and the coal mine is screened under the action of the vibration of the screening plate 51 and the compressed air blown out of the nozzle 56, so that the dry coal separation of the coal mine is performed.

Optionally, a power motor 64 is fixedly arranged in a lower side wall of the screening chamber 50, an upper end of the power motor 64 is in power connection with a power shaft 65, a power gear 67 is fixedly arranged at an upper end of the power shaft 65, a meshing chamber 38 is formed in the sliding plate 70, a rack 69 is fixedly arranged on an inner side wall of the meshing chamber 38, the power gear 67 is meshed with the rack 69, thrust springs 68 are connected to front and rear side walls of the screening chamber 50, each thrust spring 68 extends inwards and abuts against the sliding plate 70, two symmetrical discharge pipes 72 are fixedly arranged on a right side wall of the screening chamber 50, the two discharge pipes 72 are respectively positioned on front and rear sides of the screening plate 51, a transmission chamber 30 inclined backwards is formed in the lower side of the screening chamber 50, and the power shaft 65 is driven to rotate by the power motor 64, so that the power gear 67 fixed with the power shaft 65 rotates, under the action of the spring force of the thrust spring 68, the rack 69 can be controlled to be always meshed with the power gear 67, so that the power gear 67 can drive the sliding plate 70 to move left and right, the sliding plate 70 can drive the lug 71 fixed with the sliding plate to move left and right when moving left and right, the roller 53 is driven to ascend and descend according to slopes on the left and right sides of the lug 71, the screening plate 51 is controlled to vibrate up and down, when the screening plate 51 moves up and down, the pulley 66 is driven to move left and right by the track of the sliding groove 57, a coal mine is further made to slide onto the other screening plate 51 through the connecting belt 54 and then gradually moves right, and the coal mine is gradually screened into two parts under the action of the inclined plate 55 to enter the corresponding discharge pipe 72 for collection.

Optionally, the conveyor 74 includes a heater 13 fixedly disposed on the left end surface of the preparation box 10, the upper end surface of the heater 13 is communicated with a connection pipe 14, the left end surface of the preparation box 10 is fixedly disposed with a baffle 17, the heater 13 is communicated with the baffle 17, the left side of the transportation cavity 27 is provided with a louver cavity 28, the louver cavity 28 can be communicated with the transportation cavity 27, louvers 18 uniformly distributed from top to bottom are rotatably disposed in the louver cavity 28, a louver rod 21 is fixedly disposed in each louver 18, the louver rod 21 extends through the louver cavity 28 from front to back, a control cavity 22 is disposed at the rear side of the louver cavity 28, a pulley 24 is fixedly disposed in the control cavity 22 and located on the periphery of the louver rod 21, the pulley 24 is connected with a pull rope 25, the pull rope 25 is connected with the elastic sheet 61, a torsion spring 23 is connected between the left end surface of the pulley 24 and the control cavity 22, a driven cavity 19 is formed in the right side of the louver cavity 28, every two adjacent louver rods 21 in the driven cavity 19 are in power connection through a driven belt 20, a conveying rod 26 is rotatably arranged in the conveying cavity 27, the conveying rod 26 extends downwards to enter the transmission cavity 30, the conveying rod 26 is in power connection with the power shaft 65 through a transmission belt 29, a conveying pipe 49 is fixedly arranged on the right side wall of the conveying cavity 27, and the conveying pipe 49 is communicated with the screening cavity 50,

through drive belt 29's transmission makes power shaft 65's power transmission arrives drive on the transportation pole 26 is rotatory to the transportation coal mine, through the flexure strip 61 is upwards protruding, shows screening work is being carried out, and then through stay cord 25 overcomes torsional spring 23 is applyed an individual the torsion pulling of line wheel 24 is rotatory line wheel 24 the drive of driven belt 20 down can louver 21 is rotatory, makes tripe 18 upset is opened transportation chamber 27 with the passageway between the louver chamber 28, heater 13 work provides steam, to the coal mine of transportation pole 26 transportation upwards carries out stoving work, through transportation pipe 49 transport the coal mine to in the screening chamber 50.

Optionally, the crusher 75 includes a crushing motor 33 fixedly disposed on the left end surface of the preparation box 10, a crushing shaft 34 is dynamically connected to the right end of the crushing motor 33, a sun gear 35 is fixedly disposed on the wan of the crushing shaft 34, two planetary gears 36 which are symmetrical up and down are engaged with the sun gear 35, driven shafts 37 are fixedly disposed in the two planetary gears 36, a gear ring 40 is fixedly disposed in the right side wall of the crushing cavity 32, the gear ring 40 is engaged with the two planetary gears 36, a rotating cavity 42 is disposed on the right side of the crushing cavity 32, a sealing ring 41 is rotatably disposed in the rotating cavity 42, crushing rollers 39 are fixedly disposed on the peripheries of the crushing shaft 34 and the two driven shafts 37, the two driven shafts 37 extend rightwards to enter the rotating cavity 42 and are fixedly connected to the sealing ring 41, a feeding pipe 31 is fixedly disposed on the left side wall of the crushing cavity 32, the lower lateral wall of broken chamber 32 is equipped with the hang plate 43 firmly, hang plate 43 height before, low and along the extension of putting down of connecting chamber 44 gets into in the transportation chamber 27, through crushing motor 33 work drives broken axle 34 is rotatory, thereby drives sun gear 35 is rotatory, through planetary gear 36, ring gear 40 with meshing between the sun gear 35 drives planetary gear 36 centers on broken axle 34 is rotatory, and the rotation, thereby drives two driven shaft 37 is rotatory to be passed through crushing roller 39 is to getting into from pan feeding pipe 31 the colliery in broken chamber 32 is broken, and the colliery after the breakage drops to on the hang plate 43, and pass through the slope of hang plate 43 gets into in the transportation chamber 27.

Optionally, the absorber 76 includes a fan 15 fixedly disposed on the upper end surface of the sliding box 11, a blowing pipe 16 is connected to the left side of the fan 15, the blowing pipe 16 extends leftward and is connected to the connecting pipe 14, the slideway 48 extends upward and penetrates through the sliding box 11 and is connected to the blowing pipe 16, slideways 48 are respectively disposed on the front and rear side walls of the sliding box 11, the absorbing box 46 slides leftward and rightward on the slideway 48, through holes 47 are respectively disposed on the front and rear end surfaces of the absorbing box 46, the fan 15 operates to blow air through the blowing pipe 16, so that the connecting pipe 14 and the ventilating pipe 58 which are connected to the absorbing box 14 blow air, and then compressed air blown from the screening cavity 50 moves upward due to a difference in air pressure, so as to drive dust in a coal mine to enter the absorbing box 46 through the through holes 47 for absorption, and the absorbing box 46 can be taken out to the outside of the sliding box 11 through the slideway 48 to be replaced.

The invention relates to a high-efficiency automatic dry coal dressing device for a coal mine, which comprises the following working procedures:

when the coal mine screening is carried out, airflow is blown into the air box 45 through the ventilation pipe 58 and then enters the nozzle 56, because the radius is gradually reduced, the elastic sealing ring 60 can be pushed to protrude upwards, so that wind can be blown out through the elastic sealing ring 60, meanwhile, the elastic sheet 61 can protrude upwards along with the elastic sealing ring 60, so that the spring switch 62 is driven to move rightwards, the spring switch 62 is triggered to control the conveyor 74 to carry out drying work, when the ventilation pipe 58 stops blowing, the elastic sealing ring 60 protrudes downwards under the elastic control of the elastic sheet 61, so that the spring switch 62 is driven to move leftwards, the conveyor 74 is controlled to stop drying, the lug 71 is driven to move leftwards and rightwards through the left-right sliding of the sliding plate 70, so that the roller 53 touching the lug 71 rolls up and down along the slope of the lug 71, the screening plate 51 is driven to vibrate up and down, the coal mine is screened under the action of the vibration of the screening plate 51 and the compressed air blown out of the nozzle 56, thereby carrying out dry coal dressing of coal mines.

When dust is absorbed, the power motor 64 works to drive the power shaft 65 to rotate, so that the power gear 67 fixed with the power shaft 65 rotates, the rack 69 can be controlled to be always meshed with the power gear 67 under the action of the spring force of the thrust spring 68, the power gear 67 can drive the sliding plate 70 to move left and right, the sliding plate 70 can drive the lug 71 fixed with the sliding plate 70 to move left and right when moving left and right, the roller 53 rises and falls according to slopes on the left and right sides of the lug 71, the screening plate 51 is controlled to vibrate up and down, when the screening plate 51 moves up and down, the pulley 66 is driven to move left and right due to the track of the sliding groove 57, and then the coal mine slides onto the other screening plate 51 through the connecting belt 54 and then gradually moves right, and is gradually screened into two positions to move under the action of the inclined plate 55 and then enters the corresponding discharge pipes 72 to be collected.

Through the transmission of driving belt 29, make the power transmission of power shaft 65 drive on the transportation pole 26 and transport the pole 26 rotatory, thereby transport the colliery, upwards protruding through flexure strip 61, show screening work is being carried out, and then overcome torsional spring 23 through stay cord 25 and apply the torsion pulling line wheel 24 rotation of individual line wheel 24, it can the rotation of louver pole 21 to drive under the transmission of driven belt 20, make tripe 18 upset open the passageway between transportation chamber 27 and the louver chamber 28, heater 13 work provides steam, carry out stoving work to the colliery of transporting pole 26 upward transportation, transport the colliery to screening chamber 50 in through transport pipe 49.

Work through crushing motor 33, it is rotatory to drive broken axle 34, thereby it is rotatory to drive sun gear 35, through planetary gear 36, the meshing between ring gear 40 and the sun gear 35, it is rotatory around broken axle 34 to drive planetary gear 36, and the rotation, thereby it is rotatory to drive two driven shafts 37 and to break the colliery that gets into in broken chamber 32 from pan feeding pipe 31 through crushing roller 39, the colliery after the breakage drops on to hang plate 43, and get into in the transportation chamber 27 through the slope of hang plate 43.

The fan 15 works to blow air through the blowpipe 16, so that the connecting pipe 14 and the ventilation pipe 58 communicated with the fan blow air, and then compressed air blown from the screening chamber 50 moves upwards due to air pressure difference to drive dust in a coal mine to enter the absorption box 46 through the through hole 47 for absorption, and the absorption box 46 can slide left and right through the slide way 48 and be taken out to the outer side of the sliding box 11 for replacement.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a colliery is with high-efficient automatic dry process coal preparation equipment, includes preparation case (10), its characterized in that: a screening box (12) is fixedly arranged on the right end face of the preparation box (10), a screening cavity (50) is arranged in the screening box (12), a screening machine (73) for vibrating and winnowing the coal mine is arranged in the screening cavity (50), a downward through sliding box (11) is fixedly arranged on the right end face of the preparation box (10) and positioned on the upper side of the screening box (12), an absorption machine (76) for absorbing coal dust flying out in the screening process is arranged in the sliding box (11), a transportation cavity (27) is arranged in the preparation box (10), a crushing cavity (32) is arranged at the front side of the transportation cavity (27), the conveying cavity (27) is communicated with the crushing cavity (32) through a connecting cavity (44), a conveyor (74) capable of conveying coal mines upwards and performing air drying is arranged in the conveying cavity (27), a crusher (75) capable of crushing a coal mine is arranged in the crushing cavity (32);

the screening machine (73) comprises a screening plate (51) which is arranged in the screening cavity (50) in a sliding mode, the screening plate (51) is arranged in an inclined mode, nozzles (56) which are uniformly distributed on the upper end face of the screening plate (51) are arranged in the screening plate (51), the nozzles (56) extend downwards and have gradually increased radius, each air box (45) is fixedly arranged on the lower side of each nozzle (56), a sliding plate (70) capable of sliding left and right is arranged on the lower side wall of the screening cavity (50), non-uniformly distributed convex blocks (71) are fixedly arranged on the upper end face of the sliding plate (70), the left end and the right end of each convex block (71) are obliquely cut, the inclination degree of the left end of each screening plate (51) is larger than that of the right end of each convex block, a rolling roller (53) is fixedly arranged at the lower end of each screening plate (51), and the roller (53) is tightly attached to the convex blocks (71).

2. The efficient automatic dry coal preparation equipment for the coal mine according to claim 1, wherein: the rear side wall of the screening chamber (50) is fixedly provided with a transport groove (52), the transport groove (52) is positioned under the rear side wall of the screening plate (51), the right end wall of the screening chamber (50) is fixedly provided with evenly distributed sliding grooves (57), each sliding groove (57) is internally provided with a pulley (66) in a sliding way, each pulley (66) is fixedly connected with the corresponding screening plate (51), each inclined plate (55) which is inclined and evenly distributed is fixedly arranged on the upper end surface of the screening plate (51), the left side wall and the right side wall of the spout (56) are fixedly provided with an elastic sealing ring (60), the lower end surface of the elastic sealing ring (60) is provided with an elastic sheet (61), the left side of the elastic sheet (61) is provided with a sliding chamber (63), a spring switch (62) is arranged in the sliding chamber (63), each lower side of the screening plate (51) is fixedly provided with a bellows (45), one of them all communicates on the lower terminal surface of bellows (45) there is ventilation pipe (58), bellows (45) with spout (56) intercommunication, can insert the fender position board in spout (57), adjacent two articulated connecting plate (59) that have between bellows (45) can stretch out and draw back.

3. The efficient automatic dry coal preparation equipment for the coal mine according to claim 2, wherein: a power motor (64) is fixedly arranged in the lower side wall of the screening cavity (50), the upper end of the power motor (64) is in power connection with a power shaft (65), the upper end of the power shaft (65) is fixedly provided with a power gear (67), the sliding plate (70) is internally provided with an engaging cavity (38), a rack (69) is fixedly arranged on the inner side wall of the meshing cavity (38), the power gear (67) is meshed with the rack (69), thrust springs (68) are connected to the front side wall and the rear side wall of the screening cavity (50), each thrust spring (68) extends inwards and is abutted against the sliding plate (70), two discharge pipes (72) which are symmetrical in the front and the back are fixedly arranged on the right side wall of the screening cavity (50), the two discharge pipes (72) are respectively positioned on the front side and the back side of the screening plate (51), the lower side of the screening cavity (50) is provided with a transmission cavity (30) which is inclined backwards.

4. The efficient automatic dry coal preparation equipment for the coal mine according to claim 3, wherein: the conveyor (74) comprises a heater (13) fixedly arranged on the left end face of the preparation box (10), the upper end face of the heater (13) is communicated with a connecting pipe (14), a baffle (17) is fixedly arranged on the left end face of the preparation box (10), the heater (13) is communicated with the baffle (17), a louver cavity (28) is formed in the left side of the transportation cavity (27), the louver cavity (28) can be communicated with the transportation cavity (27), louvers (18) uniformly distributed from top to bottom are rotatably arranged in the louver cavity (28), a louver rod (21) is fixedly arranged in each louver (18), the louver rod (21) extends forwards and backwards to penetrate through the louver cavity (28), a control cavity (22) is formed in the rear side of the louver cavity (28), and a wire wheel (24) is fixedly arranged in the control cavity (22) and positioned on the periphery of the louver rod (21), be connected with stay cord (25) on line wheel (24), stay cord (25) with flexure strip (61) are connected, the left end face of line wheel (24) with be connected with torsional spring (23) between control chamber (22), slave chamber (19) have been seted up on the right side of louver chamber (28), in slave chamber (19) and per adjacent two all connect through driven belt (20) power between louver pole (21), transportation chamber (27) internal rotation is equipped with transport pole (26), transport pole (26) downwardly extending gets into in transmission chamber (30), transport pole (26) with connect through driving belt (29) power between power shaft (65), transport pipe (49) have set firmly on the right side wall in transportation chamber (27), transport pipe (49) with screening chamber (50) intercommunication.

5. The efficient automatic dry coal preparation equipment for the coal mine according to claim 4, wherein: the crusher (75) comprises a crushing motor (33) fixedly arranged on the left end face of the preparation box (10), the right end of the crushing motor (33) is in power connection with a crushing shaft (34), a sun gear (35) is fixedly arranged on the Tenzhou of the crushing shaft (34), two planetary gears (36) which are symmetrical up and down are meshed on the sun gear (35), driven shafts (37) are fixedly arranged in the planetary gears (36), a gear ring (40) is fixedly arranged in the right side wall of the crushing cavity (32), the gear ring (40) is meshed with the two planetary gears (36), a rotating cavity (42) is formed in the right side of the crushing cavity (32), sealing rings (41) are rotatably arranged in the rotating cavity (42), crushing rollers (39) are fixedly arranged on the peripheries of the crushing shaft (34) and the two driven shafts (37), and the two driven shafts (37) extend rightwards to enter the rotating cavity (42) and are fixedly connected with the sealing rings (41), a feeding pipe (31) is fixedly arranged on the left side wall of the crushing cavity (32), and an inclined plate (43) is fixedly arranged on the lower side wall of the crushing cavity (32).