CN210365809U - Stone and coal mixing and conveying equipment - Google Patents

Abstract

The utility model relates to the technical field of conveying devices, and aims to provide a mixed conveying device for stone materials and coal materials, which adopts the technical scheme that the mixed conveying device comprises a first conveying device and a second conveying device, wherein the discharge end of the first conveying device is positioned above the feeding end of the second conveying device, and the mixed conveying device also comprises a shaking device, wherein the shaking device comprises a fixed plate, a shaking plate and a reciprocating driving device used for driving the shaking plate to move in a reciprocating manner, the first conveying device is arranged on the shaking plate, the shaking plate is in sliding fit with the fixed plate, the reciprocating driving device is arranged on the fixed plate, and the output end of the reciprocating driving device is connected with the shaking plate; the first conveying device of the stone and coal mixing and conveying equipment is in a shaking state relative to the ground, so that stones and coal can be better shaken and mixed, the possibility of uneven mixing of the stones and the coal is reduced, and the mixing effect is better.

Description

Stone and coal mixing and conveying equipment

Technical Field

The utility model relates to a conveyor's technical field, in particular to building stones and coal material's mixed conveying equipment.

Background

Quicklime (also called marble), the chemical formula CaO, is a common inorganic compound. The natural rock whose main component is calcium carbonate is calcined at high temp. to decompose it into carbon dioxide and calcium oxide. In the production process of calcium oxide, stones with calcium carbonate as a required component are used as raw materials, coal is used as fuel, and the stones and the coal are mixed together and calcined. When mixing the stones and the coal, the stones and the coal are usually placed on a conveyor belt at the same time, the conveyor belt loaded with the stones and the coal transports the stones and the coal to another conveyor belt during the rotation process, so as to complete the mixing of the stones and the coal, and the conveyor belt transports the stones and the coal to corresponding positions.

At present, most of the commercially available hybrid conveying devices are shown in fig. 1, and comprise a first conveying device and a second conveying device, wherein the first conveying device comprises a first support 17, a first motor 18, a first rotating shaft 19, a first driving wheel 20 and a first belt 21, the first rotating shaft 19 is rotatably connected to two ends of the first support 17, the first driving wheel 20 is arranged on the first rotating shaft 19, the first belt 21 is sleeved on the first driving wheel 20 and tensioned by the first driving wheel 20, the first motor 18 is arranged on the first support 17 and connected with the first rotating shaft 19 at one end of the first support 17, the second conveying device comprises a second support 26, a second motor 27, a second rotating shaft 28, a second driving wheel 29 and a second belt 30, the second rotating shaft 28 is rotatably connected to two ends of the second support 26, the second driving wheel 29 is arranged on the second rotating shaft 28, the second belt 30 is sleeved on the second driving wheel 29 and tensioned by the second driving wheel 29, the second motor 27 is disposed on the second bracket 26 and connected to the second rotating shaft 28 at one end of the second bracket 26, the first bracket 17 is provided with a material pouring plate 38, the discharging end of the first belt 21 is located above the material guiding plate, and the feeding end of the second belt 30 is located below the material pouring plate 38.

When the mixing and conveying device is used, a first motor 18 drives a first rotating shaft 19 connected with the first motor to rotate, the first rotating shaft 19 drives a first driving wheel 20 to rotate, the first driving wheel 20 drives another first driving wheel 20 to rotate through a first belt 21, the two first driving wheels 20 rotate together to drive a first belt 21 to continuously rotate, a second motor 27 drives a second rotating shaft 28 connected with the second motor to rotate, the second rotating shaft 28 drives a second driving wheel 29 to rotate, the second driving wheel 29 drives another second driving wheel 29 to rotate through a second belt 30, the two second driving wheels 29 rotate together to drive a second belt 30 to continuously rotate, stones and coal are put on the first belt 21, the first belt 21 conveys the stones and the coal in the rotating process, the stones and the coal are conveyed from a feeding end to a discharging end of the first belt 21, the stones and the coal simultaneously fall onto a pouring plate 38 from the first belt 21, and then falls from the pouring plate 38 onto the second belt 30 to complete the mixing of the pebbles and the coal, and the second belt 30 conveys the pebbles and the coal to corresponding positions in the rotating process.

Although the mixing and conveying device can mix the pebbles and the coal materials in the conveying process, the first conveying device is in a static state relative to the ground in the conveying process, so that the pebbles and the coal are difficult to shake and mix, the mixing of the pebbles and the coal is uneven, and the mixing effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mixed conveying equipment of building stones and coal material, its first conveyor is in for ground and rocks the state, makes rock that stone and coal can be better mix, has reduced the inhomogeneous possibility of stone and coal mixture, and it is better to mix the effect.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a building stones and coal charge's mixed conveying equipment, includes first conveyor and second conveyor, first conveyor's discharge end is in second conveyor's pan feeding end top, still includes the device of rocking, the device of rocking includes the fixed plate, rocks the board and is used for the drive to rock board reciprocating motion's reciprocal drive arrangement, first conveyor sets up on rocking the board, rock board and fixed plate sliding fit, reciprocal drive arrangement sets up on the fixed plate, just reciprocal drive arrangement's output links to each other with rocking the board.

Through adopting above-mentioned technical scheme, when stone and coal were transported on first conveyor, start reciprocal drive arrangement, reciprocal drive arrangement drives and rocks board reciprocating motion, first conveyor is along with rocking board reciprocating motion, first conveyor is in for ground and rocks the state, stone and coal rock along with first conveyor together, thereby can be better mix together, compare for ground rigid with first conveyor, reduced the inhomogeneous possibility of stone and coal mixture, it is better to mix the effect.

Further setting: the reciprocating driving device comprises a first driving motor, a gear and a rack, the first driving motor is arranged on the fixed plate, the gear is linked with the first driving motor, the rack is arranged on the shaking plate, and the rack is meshed with the gear.

Through adopting above-mentioned technical scheme, start first driving motor, first driving motor drives the gear and rotates, and the gear drives the rack removal rather than the meshing at the rotation in-process, through the continuous rotation direction who changes the gear of first driving motor, the moving direction of rack changes constantly, and the rack drives first conveyor reciprocating motion through shaking the board to reduced the inhomogeneous possibility of stone and coal mixture, mixed effect is better.

Further setting: the number of the racks is at least three, and the number of the gears is at least three.

Through adopting above-mentioned technical scheme, compare with the cooperation through a gear and a rack and drive first conveyor reciprocating motion, all set up rack and gear into threely, can increase the drive power that drives first conveyor reciprocating motion to improve first conveyor's reciprocating motion effect.

Further setting: the fixing plate is provided with a first groove, a connecting frame is arranged in the first groove, a first transmission rotating shaft is connected to the connecting frame in a rotating mode, a first driving motor is arranged on the side wall of the first groove, the first driving motor and the first transmission rotating shaft are linked, and the gear is arranged on the first transmission rotating shaft.

Through adopting above-mentioned technical scheme, the gear is in first recess, can reduce the distance between first conveyor and the ground, makes first conveyor more stable when reciprocating motion.

Further setting: be equipped with drive assembly between first driving motor and the first transmission pivot, drive assembly includes drive sprocket, driven sprocket and chain, drive sprocket sets up on first driving motor, driven sprocket sets up in the first transmission pivot, the chain cover is established on drive sprocket and driven sprocket and is tensioned by drive sprocket and driven sprocket.

Through adopting above-mentioned technical scheme, start first driving motor, first driving motor drives the drive sprocket and rotates, and drive sprocket passes through the chain and drives driven sprocket and rotate, and driven sprocket drives first transmission pivot and rotates to realize driving first transmission pivot pivoted purpose.

Further setting: the reciprocating driving device comprises a rotating disc, a connecting rod and a second driving motor used for driving the rotating disc to rotate, the second driving motor is arranged on the fixed plate, the rotating disc is linked with the second driving motor, one end of the connecting rod is rotatably connected to the eccentric position of the rotating disc through a pin, and the other end of the connecting rod is rotatably connected to the shaking plate through a pin.

By adopting the technical scheme, the second driving motor is started, the second driving motor drives the rotating disc to rotate, the rotating disc drives the connecting rod to move in the rotating process, and the connecting rod drives the shaking plate to move on the fixed plate in the moving process in a reciprocating mode, so that the first conveying device is driven to move in a reciprocating mode, and the purpose of driving the first conveying device to move in a reciprocating mode is achieved.

Further setting: the rotating disc and the connecting rods are at least three, a second groove is formed in the fixing plate, second transmission rotating shafts equal to the rotating disc in number are connected in the second groove in a rotating mode, the rotating disc is arranged on the second transmission rotating shafts, the second driving motor is arranged in the second groove, a driving shaft is arranged on the second driving motor, a worm is arranged on the driving shaft, a worm wheel is arranged on the second transmission rotating shaft, and the worm is matched with the worm wheel.

By adopting the technical scheme, the second driving motor is started, the second driving motor drives the driving shaft to rotate, the driving shaft drives the worm to rotate in the rotating process, the worm drives the worm wheel to rotate in the rotating process, the worm wheel drives the second transmission rotating shaft to rotate, and the second transmission rotating shaft drives the rotating disc to rotate in the rotating process, so that the aim of driving the rotating disc to rotate is fulfilled.

Further setting: first conveyor includes first support, first motor, first pivot, first drive wheel and first belt, and first pivot swivelling joint is in the both ends of first support, and first drive wheel sets up in first pivot, and first belt cover is established on first drive wheel and by first drive wheel tensioning, and first motor setting is on first support and with first pivot connection, be equipped with on the first support and be used for carrying out spacing limiting plate to stone and coal, the limiting plate is in the both sides of first belt top.

Through adopting above-mentioned technical scheme, the setting of limiting plate can be spacing to stone and coal on the first belt, avoids first conveyor to be rocking the in-process, and stone and coal drop from first belt, brings inconvenience for the transport of stone and coal.

Further setting: first conveyor still includes "U" type deflector, the slope of "U" type deflector sets up on first support, the discharge end of first belt is in the pan feeding end top of "U" type deflector, the discharge end of "U" type deflector is in second conveyor's pan feeding end top.

By adopting the technical scheme, the arrangement of the U-shaped guide plate can guide the movement direction of the stones and coal falling from the first conveying device, so that the stones and the coal fall on the second conveying device, and the possibility that the stones and the coal deviate from the second conveying device in the falling process is reduced.

Further setting: and a vibration motor is arranged on the U-shaped guide plate.

Through adopting above-mentioned technical scheme, vibrating motor's setting can make "U" type deflector vibration, and when stone and coal dropped on "U" type deflector, stone and coal moved on "U" type deflector in the vibration to can further be with the more even of stone and coal mixture.

To sum up, the utility model discloses following beneficial effect has:

1. when the stones and the coal are transported on the first conveying device, the reciprocating driving device is started, the reciprocating driving device drives the shaking plate to move in a reciprocating mode, the first conveying device moves in a reciprocating mode along with the shaking plate, the first conveying device is in a shaking state relative to the ground, and the stones and the coal shake together along with the first conveying device, so that the stones and the coal can be mixed together better;

2. compared with the method that the first conveying device is driven to reciprocate through the matching of one gear and one rack, the driving force for driving the first conveying device to reciprocate can be increased by arranging three racks and three gears, so that the reciprocating effect of the first conveying device is improved;

3. the setting of limiting plate can carry on spacingly to stone and coal on the first belt, avoids first conveyor at the rocking in-process, and stone and coal drop from first belt, bring inconvenience for the transport of stone and coal.

Drawings

FIG. 1 is a schematic diagram of a mixing and conveying device in the prior art;

fig. 2 is a schematic structural view for embodying the present invention in embodiment 1;

FIG. 3 is an enlarged view of the portion A of FIG. 2 for showing the position relationship between the slide bar and the slide groove;

fig. 4 is a schematic structural view for embodying the positional relationship between the gear and the rack in embodiment 1;

fig. 5 is a schematic structural view for showing a positional relationship between the "U" -shaped guide plate and the vibration motor in embodiment 1;

FIG. 6 is a schematic structural view showing a positional relationship between a "U" shaped guide plate and a second belt in embodiment 1;

fig. 7 is a schematic structural view for showing a positional relationship between the worm and the drive shaft in embodiment 2;

fig. 8 is a schematic structural diagram for showing a positional relationship between the worm wheel and the worm in embodiment 2.

In the figure, 1, a shaking device; 2. a fixing plate; 3. a shaking plate; 4. a reciprocating drive device; 5. a slide bar; 6. a chute; 7. a first drive motor; 8. a gear; 9. a rack; 10. a first groove; 11. a connecting frame; 12. a first transmission rotating shaft; 13. a transmission assembly; 14. a drive sprocket; 15. a driven sprocket; 16. a chain; 17. a first bracket; 18. a first motor; 19. a first rotating shaft; 20. a first drive pulley; 21. a first belt; 22. a U-shaped guide plate; 23. a support bar; 24. a limiting plate; 25. a vibration motor; 26. a second bracket; 27. a second motor; 28. a second rotating shaft; 29. a second transmission wheel; 30. a second belt; 31. rotating the disc; 32. a connecting rod; 33. a second drive motor; 34. a second groove; 35. a support frame; 36. a drive shaft; 37. a second transmission rotating shaft; 38. material pouring plates; 39. a worm gear; 40. a worm.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: a mixed conveying device for stone and coal comprises a first conveying device, a second conveying device and a shaking device 1, wherein the first conveying device is arranged on the shaking device 1, and the discharge end of the first conveying device is positioned above the feeding end of the second conveying device.

As shown in fig. 2 and 3, it includes fixed plate 2 to rock device 1, rock board 3 and reciprocating drive device 4 to rock, reciprocating drive device 4 is used for the drive to rock board 3 reciprocating motion, rock board 3 and fixed plate 2 sliding fit, rock and be equipped with draw runner 5 on the board 3, be equipped with spout 6 on the fixed plate 2, draw runner 5 is in spout 6 and with 6 sliding fit of spout, so that lead to the moving direction who rocks board 3, reciprocating drive device 4 sets up on fixed plate 2, and reciprocating drive device 4's output with rock board 3 and link to each other.

As shown in fig. 2 and 4, the reciprocating driving device 4 includes a first driving motor 7, a gear 8 and a rack 9, the first driving motor 7 is provided with one, the rack 9 and the gear 8 are respectively provided with three, the fixing plate 2 is provided with a first groove 10, a connecting frame 11 is provided in the first groove 10, the connecting frame 11 is rotatably connected with a first rotating shaft 12, the gear 8 is provided on the first rotating shaft 12, the rack 9 is provided on the wobble plate 3, the rack 9 is engaged with the gear 8, and the gear 8 is located in the first groove 10.

As shown in fig. 2, the first driving motor 7 is disposed on a side wall of the first groove 10, the first driving motor 7 is linked with the first transmission rotating shaft 12 through the transmission assembly 13, the transmission assembly 13 includes a driving sprocket 14, a driven sprocket 15 and a chain 16, the driving sprocket 14 is disposed on the first driving motor 7, the driven sprocket 15 is disposed on the first transmission rotating shaft 12, and the chain 16 is sleeved on the driving sprocket 14 and the driven sprocket 15 and tensioned by the driving sprocket 14 and the driven sprocket 15.

As shown in fig. 2 and 5, the first conveying device is disposed on the shaking plate 3, the first conveying device includes a first bracket 17, a first motor 18, a first rotating shaft 19, a first driving wheel 20, a first belt 21 and a "U" shaped guide plate 22, the first rotating shaft 19 is rotatably connected to two ends of the first bracket 17, the first driving wheel 20 is disposed on the first rotating shaft 19, the first belt 21 is sleeved on the first driving wheel 20 and is tensioned by the first driving wheel 20, the first motor 18 is disposed on the first bracket 17 and is connected to one of the first rotating shafts 19, a support rod 23 is disposed on the first bracket 17, a limit plate 24 is disposed on the support rod 23, the limit plate 24 is disposed on two sides above the first belt 21 to limit stones and coals and avoid stones and coals from falling off from the first belt 21 during shaking, the "U" shaped guide plate 22 is disposed on the first bracket 17 in an inclined manner, the U-shaped guide plate 22 is provided with a vibration motor 25 so as to vibrate the stones and the coal passing through the U-shaped guide plate 22 to enable the stones and the coal to be better mixed, the discharge end of the first belt 21 is positioned above the feeding end of the U-shaped guide plate 22, and the discharge end of the U-shaped guide plate 22 is positioned above the feeding end of the second conveying device.

As shown in fig. 2 and fig. 6, the second conveying device includes a second bracket 26, a second motor 27, a second rotating shaft 28, a second driving wheel 29 and a second belt 30, the second rotating shaft 28 is rotatably connected to two ends of the second bracket 26, the second driving wheel 29 is disposed on the second rotating shaft 28, the second belt 30 is sleeved on the second driving wheel 29 and is tensioned by the second driving wheel 29, the second motor 27 is disposed on the second bracket 26 and is connected to the second rotating shaft 28 at one end of the second bracket 26, and a discharge end of the "U" -shaped guide plate 22 is located above a feeding end of the second belt 30.

The implementation process comprises the following steps: the method comprises the steps of putting stones and coal on a first belt 21, starting a first motor 18, driving the first belt 21 to rotate by the first motor 18 through a first rotating shaft 19 and a first driving wheel 20, and conveying the stones and the coal by the first belt 21 in the rotating process.

The first driving motor 7 is started, the first driving motor 7 drives the driving chain wheel 14 to rotate, the driving chain wheel 14 drives the driven chain wheel 15 to rotate through the chain 16 in the rotating process, the driven chain wheel 15 drives the first transmission rotating shaft 12 to rotate, the first transmission rotating shaft 12 drives the three gears 8 to rotate simultaneously, the gears 8 drive the racks 9 meshed with the gears to move in the rotating process, the racks 9 drive the shaking plate 3 to move in the moving process, the rotating direction of the output shaft of the first driving motor 7 is continuously changed, the rotating direction of the gears 8 is continuously changed, the moving direction of the racks 9 is continuously changed, the shaking plate 3 is made to reciprocate, the shaking plate 3 drives the first conveying device to reciprocate in the reciprocating process, and stones and coal are mixed together on the first belt 21 through shaking.

Along with the continuous rotation of the first belt 21, the mixed stones and coal are conveyed to the U-shaped guide plate 22 by the first belt 21, the vibration motor 25 vibrates the U-shaped guide plate 22 under the working state, the stones and coal are further mixed after the U-shaped guide plate 22 is vibrated and fall onto the second belt 30, the second motor 27 drives the second belt 30 to rotate through the second rotating shaft 28 and the second driving wheel 29, and the second belt 30 conveys the mixed stones and coal to corresponding positions in the rotating process.

Example 2: the difference between the stone and coal mixed conveying equipment and the embodiment 1 is that, as shown in fig. 7 and 8, the reciprocating driving device 4 comprises a rotating disc 31, a connecting rod 32 and a second driving motor 33 for driving the rotating disc 31 to rotate, the second driving motor 33 is provided with one, the rotating disc 31 and the connecting rod 32 are respectively provided with three, a fixing plate 2 is provided with a second groove 34, the second groove 34 is rotatably connected with second transmission rotating shafts 37 with the same number as the rotating disc 31, a supporting frame 35 is arranged in the second groove 34, one end of each second transmission rotating shaft 37 is rotatably connected with the bottom of the second groove 34, the other end of each second transmission rotating shaft 37 is rotatably connected with the supporting frame 35 and penetrates through the supporting frame 35, the rotating disc 31 is arranged at one end of the second transmission rotating shaft 37 penetrating through the supporting frame 35, one end of the connecting rod 32 is rotatably connected with the eccentric position of the rotating disc 31 through a pin, the second driving motor 33 is arranged in the second groove 34, a driving shaft 36 is arranged on the second driving motor 33, one end of the driving shaft 36 is connected with the second driving motor 33, the other end of the driving shaft 36 is rotatably connected with the side wall of the second groove 34, a worm 40 is arranged on the driving shaft 36, a worm wheel 39 is arranged on the second transmission rotating shaft 37, and the worm 40 is matched with the worm wheel 39.

The implementation process comprises the following steps: the second driving motor 33 is started, the second driving motor 33 drives the driving shaft 36 to rotate, the driving shaft 36 drives the worm 40 to rotate, the worm 40 drives the worm wheel 39 to rotate, the worm wheel 39 drives the second transmission rotating shaft 37 to rotate, the second transmission rotating shaft 37 drives the rotating disc 31 to rotate, in the rotating process of the rotating disc 31, the connecting rod 32 moves along with the rotation of the rotating disc 31, and the connecting rod 32 drives the shaking plate 3 to move on the fixed plate 2 in a reciprocating mode in the moving process, so that the purpose of driving the first conveying device to move in a reciprocating mode is achieved, and stones and coal are mixed together through shaking.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a building stones and coal charge's mixed conveying equipment, includes first conveyor and second conveyor, first conveyor's discharge end is in second conveyor's pan feeding end top, its characterized in that: still including rocking device (1), rocking device (1) including fixed plate (2), rock board (3) and be used for the drive to shake reciprocal drive arrangement (4) of board (3) reciprocating motion, first conveyor sets up on shaking board (3), shake board (3) and fixed plate (2) sliding fit, reciprocal drive arrangement (4) set up on fixed plate (2), just the output of reciprocal drive arrangement (4) links to each other with shaking board (3).

2. The stone and coal mixing conveyor as claimed in claim 1, wherein: the reciprocating driving device (4) comprises a first driving motor (7), a gear (8) and a rack (9), the first driving motor (7) is arranged on the fixing plate (2), the gear (8) is linked with the first driving motor (7), the rack (9) is arranged on the shaking plate (3), and the rack (9) is meshed with the gear (8).

3. The stone and coal mixing conveyor as claimed in claim 2, wherein: the number of the racks (9) is at least three, and the number of the gears (8) is at least three.

4. The stone and coal mixing conveyor as claimed in claim 3, wherein: be equipped with first recess (10) on fixed plate (2), be equipped with link (11) in first recess (10), the last rotation of link (11) is connected with first transmission shaft (12), first driving motor (7) set up on first recess (10) lateral wall, the linkage between first driving motor (7) and first transmission shaft (12), gear (8) set up on first transmission shaft (12).

5. The stone and coal mixing conveyor as claimed in claim 4, wherein: be equipped with drive assembly (13) between first driving motor (7) and first transmission pivot (12), drive assembly (13) include drive sprocket (14), driven sprocket (15) and chain (16), drive sprocket (14) set up on first driving motor (7), driven sprocket (15) set up on first transmission pivot (12), chain (16) cover is established on drive sprocket (14) and driven sprocket (15) and is tensioned by drive sprocket (14) and driven sprocket (15).

6. The stone and coal mixing conveyor as claimed in claim 1, wherein: the reciprocating driving device (4) comprises a rotating disc (31), a connecting rod (32) and a second driving motor (33) used for driving the rotating disc (31) to rotate, the second driving motor (33) is arranged on the fixed plate (2), the rotating disc (31) is linked with the second driving motor (33), one end of the connecting rod (32) is connected to the eccentric position of the rotating disc (31) through a pin in a rotating mode, and the other end of the connecting rod is connected to the shaking plate (3) through a pin in a rotating mode.

7. The stone and coal mixing conveyor as claimed in claim 6, wherein: rolling disc (31) and connecting rod (32) set up to three respectively at least, be equipped with second recess (34) on fixed plate (2), second recess (34) internal rotation is connected with second transmission pivot (37) that equals with rolling disc (31) quantity, rolling disc (31) set up on second transmission pivot (37), second driving motor (33) set up in second recess (34), be equipped with drive shaft (36) on second driving motor (33), be equipped with worm (40) on drive shaft (36), be equipped with worm wheel (39) on second transmission pivot (37), worm (40) and worm wheel (39) cooperation.

8. The stone and coal mixing conveyor as claimed in claim 1, wherein: first conveyor includes first support (17), first motor (18), first pivot (19), first drive wheel (20) and first belt (21), and first pivot (19) rotate to be connected in the both ends of first support (17), and first drive wheel (20) set up on first pivot (19), and first belt (21) cover is established on first drive wheel (20) and by first drive wheel (20) tensioning, and first motor (18) set up on first support (17) and are connected with first pivot (19), be equipped with on first support (17) and be used for carrying out spacing limiting plate (24) to stone and coal, limiting plate (24) are in the both sides of first belt (21) top.

9. The stone and coal mixing conveyor as claimed in claim 8, wherein: the first conveying device further comprises a U-shaped guide plate (22), the U-shaped guide plate (22) is obliquely arranged on the first support (17), the discharge end of the first belt (21) is located above the feeding end of the U-shaped guide plate (22), and the discharge end of the U-shaped guide plate (22) is located above the feeding end of the second conveying device.

10. The stone and coal mixing conveyor as claimed in claim 9, wherein: and a vibration motor (25) is arranged on the U-shaped guide plate (22).

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