CN219483317U

CN219483317U - Coal sorting and screening equipment

Info

Publication number: CN219483317U
Application number: CN202320560218.7U
Authority: CN
Inventors: 郭宏; 董利先; 郭文强; 赵宇
Original assignee: Inner Mongolia Yuanluxing New Energy Technology Co ltd
Current assignee: Inner Mongolia Yuanluxing New Energy Technology Co ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-08-08
Anticipated expiration: 2033-03-21

Abstract

The utility model relates to the technical field of coal screening, and discloses coal sorting and screening equipment which comprises a screening box, wherein a coal driving assembly for driving coal to move is arranged in the screening box, a plurality of discharging grooves which are distributed at equal intervals are formed in the lower side of the outer wall of the screening box, screening assemblies are arranged in each discharging groove, one end of the screening box is provided with a feeding end, the inside of the feeding end is communicated with the inside of the screening box, and an auxiliary feeding assembly is arranged in the feeding end. According to the utility model, the plurality of semicircular plates are equidistantly arranged on the central shaft to form the material distributing chamber with the same volume, so that coal can fall into the material distributing chamber when the central shaft is driven by the driving motor to rotate, and move towards the inside of the screening box, so that the entering amount of the coal can be stabilized, the phenomenon of unstable feeding amount is avoided, and the blocking phenomenon is reduced.

Description

Coal sorting and screening equipment

Technical Field

The utility model relates to the technical field of coal screening, in particular to coal sorting and screening equipment.

Background

Front coal-rich mining areas are generally classified into underground coal mines and open pit coal mines. When the coal seam is far from the earth surface, coal is generally selected to be extracted from underground mining roadways, which is an underground coal mine. When the distance between the coal seam and the ground surface is very short, the surface soil layer is generally peeled off directly to excavate coal, which is an opencast coal mine, and screening devices are needed to be used for screening in the coal production process.

In the prior art, the authorized publication number is CN217830691U, a screening device for coal washing and selecting belongs to the field of screening devices, a screening device for coal washing and selecting comprises a screening barrel, an input port is formed in the upper end of the screening barrel, a top filter plate, a middle filter plate and a bottom falling plate are respectively arranged at the inner end of the screening barrel from top to bottom, holes with different apertures are formed in the upper ends of the top filter plate and the middle filter plate, a coal size screening device with small occupied area and convenient transfer is arranged, three screening plates are arranged from top to bottom in the device, coal raw materials are input into the screening barrel from the input port, the coal raw materials sequentially fall firstly through the top filter plate, larger coal is blocked on the top filter plate, medium-size coal falls onto the middle filter plate again, medium coal is blocked on the middle filter plate, fine coal falls onto the bottom falling plate through the middle filter plate, and the whole screening operation is completed, and the processing efficiency of coal processing operation is guaranteed.

In the technical scheme, the condition that coal is blocked in the sieve holes exists in the sieving process, so that the blocking phenomenon of equipment can be caused, the coal entering quantity cannot be stabilized in the feeding process, and the equipment is blocked easily when the coal entering quantity is large, so that the coal sorting and sieving equipment is provided.

Disclosure of Invention

The utility model provides coal sorting and screening equipment, which solves the technical problems that the equipment is blocked due to the fact that coal is blocked in a screen hole in the screening process, the coal entering amount cannot be stabilized during feeding, and the equipment is blocked easily when the coal entering amount is large.

In order to solve the technical problems, the coal sorting and screening device provided by the utility model comprises a screening box, wherein a coal driving assembly for driving coal to move is arranged in the screening box, a plurality of discharging grooves which are distributed at equal intervals are formed in the lower side of the outer wall of the screening box, each discharging groove is internally provided with a screening assembly, one end of the screening box is provided with a feeding end, the inside of the feeding end is communicated with the inside of the screening box, and an auxiliary feeding assembly is arranged in the feeding end.

Preferably, the screening box is cylindrical, the screening box is transversely arranged, and the screening box is fixedly arranged on the supporting frame.

Preferably, the coal driving assembly comprises a driving shaft, two ends of the driving shaft are rotatably arranged inside the screening box, and a feeding auger is arranged on the outer wall of the driving shaft.

Preferably, the end part of the driving shaft rotates and extends to the outside of the screening box, the end part of the driving shaft is fixedly connected with the output end of the driving motor, and the driving motor is arranged on the outer wall of the screening box through a bracket.

Preferably, the screening assembly comprises a screening plate, the screening plate is arranged inside the discharge chute, a plurality of screening holes for screening coal are formed in the screening plate, and the diameters of the screening holes in the screening plates are gradually enlarged from coal feeding to moving directions.

Preferably, a discharging channel is arranged at the lower part of the sieving plate.

Preferably, the auxiliary feeding assembly comprises a central shaft, two ends of the central shaft are rotatably arranged inside the feeding end, a plurality of semicircular plates are distributed on the outer wall of the central shaft in an annular array mode, the end portion of the central shaft is rotatably extended to the outer portion of the feeding end and fixedly connected with the output end of a feeding motor, and the feeding motor is arranged on the outer wall of the feeding end through a bracket.

Compared with the related art, the coal sorting and screening equipment provided by the utility model has the following components in parts by weight

The beneficial effects are that:

when the coal feeding device is used, the plurality of semicircular plates are equidistantly arranged on the central shaft to form a material distributing cavity with the same volume, when the central shaft is driven by the driving motor to rotate, coal can fall into the material distributing cavity and move towards the inside of the screening box, so that the entering quantity of the coal can be stabilized, the phenomenon of unstable feeding quantity is avoided, and the occurrence of blocking phenomenon is reduced;

after the coal is clamped into the sieve holes, the feeding auger moving gradually can push the coal to move, so that the coal is pushed into the sieve holes to enter the sieving plate of the next stage for sieving, and the blocking phenomenon of the equipment during sieving is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a coal sorting and screening apparatus;

FIG. 2 is a schematic diagram of the structure of a screening box of a coal sorting and screening apparatus;

FIG. 3 is a schematic view of the structure of a screening plate of a coal sorting and screening apparatus;

fig. 4 is a schematic structural view of a feed end of a coal sorting and screening apparatus.

Reference numerals in the drawings: 1. a screening box; 2. a support frame; 3. a coal drive assembly; 31. a drive shaft; 32. feeding augers; 33. a driving motor; 4. a feed end; 5. an auxiliary feed assembly; 51. a central shaft; 52. a semicircular plate; 53. a feed motor; 6. a discharge chute; 7. a screen assembly; 71. a screening plate; 72. a sieve pore; 73. and a discharging channel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The first embodiment is shown in fig. 1-4, the coal sorting and screening device comprises a screening box 1, wherein a coal driving component 3 for driving coal to move is arranged in the screening box 1, a plurality of discharging grooves 6 which are distributed at equal intervals are formed in the lower side of the outer wall of the screening box 1, screening components 7 are arranged in each discharging groove 6, a feeding end 4 is arranged at one end of the screening box 1, the inside of the feeding end 4 is communicated with the inside of the screening box 1, and an auxiliary feeding component 5 is arranged in the feeding end 4.

In the embodiment, the screening box 1 is cylindrical, the screening box 1 is transversely arranged, and the screening box 1 is fixedly arranged on the supporting frame 2.

In this embodiment, the coal driving assembly 3 includes a driving shaft 31, both ends of the driving shaft 31 are rotatably mounted inside the screening box 1, a feeding auger 32 is mounted on the outer wall of the driving shaft 31, the end of the driving shaft 31 is rotatably extended to the outside of the screening box 1, the end of the driving shaft 31 is fixedly connected with the output end of a driving motor 33, the driving motor 33 is mounted on the outer wall of the screening box 1 through a bracket, the driving shaft 31 and the feeding auger 32 can be moved by starting the driving motor 33, the feeding auger 32 pushes coal to move towards the end of the screening box 1, and when the coal passes through a screening plate 71 in a discharge chute 6, the coal enters a discharge channel 73 through a screen hole 72, so that screening work is completed.

In this embodiment, screening assembly 7 includes screening plate 71, and screening plate 71 installs inside blown down tank 6, is provided with a plurality of sieve meshes 72 that are used for screening coal on the screening plate 71, and the diameter of sieve mesh 72 that is located on a plurality of screening plates 71 is expanded gradually to the direction of motion by the coal feeding and can be divided into multistage screening work, promotes the precision of screening, and the discharge channel 73 is installed to screening plate 71 lower part, and the coal after passing through screening plate 71 passes through the discharge channel 73 and discharges.

In this embodiment, the auxiliary feeding assembly 5 includes a central shaft 51, two ends of the central shaft 51 are all rotatably mounted inside the feeding end 4, the feeding end 4 is in a funnel shape, a plurality of semicircular plates 52 are distributed on the outer wall of the central shaft 51 in a ring array, the end of the central shaft 51 is rotatably extended to the outside of the feeding end 4 and fixedly connected with the output end of a feeding motor 53, the feeding motor 53 is mounted on the outer wall of the feeding end 4 through a bracket, a plurality of semicircular plates 52 can form a material distributing chamber with the same volume through being equidistantly arranged on the central shaft 51, when the central shaft 51 is driven to rotate by a driving motor 33, coal can fall into the material distributing chamber, and the coal moves inside a screening box 1, so that the entering amount of the coal can be stabilized.

Working principle:

when the coal screening device is used, the plurality of semicircular plates 52 are equidistantly arranged on the central shaft 51 to form a material separating chamber with the same volume, when the central shaft 51 is driven to rotate by the driving motor 33, coal can fall into the material separating chamber and move into the screening box 1, so that the entering amount of the coal can be stabilized, the phenomenon of unstable feeding amount is avoided, and the blocking phenomenon is reduced;

the driving shaft 31 and the feeding auger 32 can be moved by starting the driving motor 33, so that the feeding auger 32 pushes coal to move towards the end part of the screening box 1, and when the coal passes through the screening plate 71 in the discharge chute 6, the coal enters the discharge channel 73 through the screen holes 72, so that screening work is completed.

After the coal is clamped into the sieve holes 72, the feeding auger 32 which moves gradually can push the coal to move, so that the coal is pushed into the sieve holes 72 to enter the sieving plate 71 of the next stage for sieving, and the blocking phenomenon of equipment sieving is reduced.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Coal sorting and screening equipment comprises a screening box (1), and is characterized in that: the inside mounting of screening case (1) has coal drive assembly (3) that are used for driving coal motion, a plurality of equidistance distribution's blown down tank (6) have been seted up to the downside of screening case (1) outer wall, every blown down tank (6) are inside all to install screening subassembly (7), the one end of screening case (1) is provided with feed end (4), feed end (4) inside and screening case (1) inside intercommunication, the internally mounted of feed end (4) has supplementary feed assembly (5).

2. The coal sorting and screening device according to claim 1, characterized in that the screening box (1) is cylindrical, the screening box (1) is transversely arranged, and the screening box (1) is fixedly arranged on the supporting frame (2).

3. A coal sorting and screening apparatus according to claim 1, characterized in that the coal driving assembly (3) comprises a driving shaft (31), both ends of the driving shaft (31) are rotatably mounted inside the screening box (1), and a feeding auger (32) is mounted on the outer wall of the driving shaft (31).

4. A coal sorting and screening apparatus according to claim 3, characterized in that the end of the drive shaft (31) extends to the outside of the screening box (1) in rotation, the end of the drive shaft (31) is fixedly connected with the output end of the drive motor (33), and the drive motor (33) is mounted on the outer wall of the screening box (1) by means of a bracket.

5. A coal sorting and screening apparatus according to claim 1, characterized in that the screening assembly (7) comprises screening plates (71), the screening plates (71) being mounted inside the discharge chute (6), the screening plates (71) being provided with a number of screening holes (72) for screening the coal, the diameter of the screening holes (72) on the screening plates (71) being gradually enlarged from the coal feed in the direction of movement.

6. The coal sorting and screening apparatus according to claim 5, characterized in that the screening plate (71) is provided with a discharge channel (73) in its lower part.

7. The coal sorting and screening device according to claim 1, wherein the auxiliary feeding assembly (5) comprises a central shaft (51), two ends of the central shaft (51) are rotatably installed inside the feeding end (4), a plurality of semicircular plates (52) are distributed on the outer wall of the central shaft (51) in an annular array mode, the end portion of the central shaft (51) rotatably extends to the outer portion of the feeding end (4) and is fixedly connected with the output end of a feeding motor (53), and the feeding motor (53) is installed on the outer wall of the feeding end (4) through a bracket.