CN215029333U - Multidimensional crushing and screening integrated machine for coal and gangue - Google Patents

Abstract

The utility model provides a coal gangue multidimensional crushing and screening integrated machine, which relates to the technical field of coal gangue crushing, and comprises an upper layer hobbing and a lower layer hobbing, a box body and a power mechanism, wherein the upper layer hobbing and the lower layer hobbing respectively comprise more than 2 hobbing shafts, the hobbing shafts of the upper layer hobbing and the lower layer hobbing are arranged in a staggered way, the surface of the hobbing shaft is provided with tooth sockets and cutting teeth, and the tooth sockets and the cutting teeth are alternately arranged along the outer edge of the hobbing shaft; the distance between the cutting teeth on the hobbing shaft of the upper layer hobbing is the minimum designed coal gangue particle size, and the distance between the tooth grooves on the hobbing shaft of the upper layer hobbing is the maximum designed coal gangue particle size; the vertical distance between the cutting teeth on the gear shaft of the upper layer of hobbing and the cutting teeth on the gear shaft of the lower layer of hobbing is the minimum design coal gangue particle size. The coal gangue multidimensional crushing all-in-one machine solves the technical problems that long coal gangue is not easy to crush, transitional crushing and crushing particle size are not uniform, and has the advantages of high lump coal rate, flexible equipment and the like.

Description

Multidimensional crushing and screening integrated machine for coal and gangue

Technical Field

The utility model relates to a broken technical field of gangue specifically is a miniature coal gangue multidimension crushing all-in-one.

Background

A crusher is generally arranged in a crossheading of a coal mine and is used for fully mechanized mining or fully mechanized caving face crossheading and matched with a transfer conveyor for use, the function of the crusher is to crush coal unloaded to the transfer conveyor by a face scraper conveyor in the transportation process, and the crushed coal is lifted by the transfer conveyor and unloaded to a crossheading belt conveyor to be carried away, so that comprehensive mechanical coal mining, transportation and crushing work are realized. The crusher is widely applied to coal mining and processing, and the raw coal obtained by mining generally has a large volume and can be used only after the working procedures of crushing, sorting and the like.

At present, a pair of roller type crushers, hammer type crushers, jaw type crushers and the like are used for crushing raw coal in a large number. The double-roller crusher is difficult to crush long-strip-shaped coal blocks in the using process, long-strip-shaped large coal blocks exist, and the large coal blocks easily damage a belt conveyor. The hammer crusher crushes each piece of raw coal to cause overhigh coal crushing rate and generate a large amount of coal slime. The jaw crusher also has the problem that long-strip-shaped coal blocks cannot be crushed, and can crush all the coal blocks, so that the coal slime amount is reduced. Therefore, in order to solve the problems of long-strip-shaped coal block crushing and different treatment of coal blocks with different particle sizes, the existing crusher needs to be further improved.

SUMMERY OF THE UTILITY MODEL

Carry out the breakage for solving rectangular form coal cinder to distinguish the lump coal granularity and carry out broken technical problem, the utility model provides a broken sieve all-in-one of coal gangue multidimension, concrete technical scheme as follows.

A multi-dimensional coal gangue crushing and screening integrated machine comprises upper layer hobbing and lower layer hobbing, a box body and a power mechanism, wherein the upper layer hobbing and the lower layer hobbing are arranged in the box body; the upper layer gear hobbing and the lower layer gear hobbing respectively comprise more than 2 gear hobbing shafts, and the gear hobbing shafts of the upper layer gear hobbing and the lower layer gear hobbing are arranged in a staggered mode; the power mechanism drives the gear shaft to rotate; the surface of the hobbing shaft is provided with tooth grooves and cutting teeth which are alternately arranged along the outer edge of the hobbing shaft.

Preferably, the upper layer of hobbing in the box body comprises a first hobbing shaft, a second hobbing shaft and a third hobbing shaft, the first hobbing shaft and the second hobbing shaft rotate along the same direction, and the rotation directions of the third hobbing shaft and the second hobbing shaft are opposite; the lower layer gear hobbing in the box body comprises a fourth gear hobbing shaft and a fifth gear hobbing shaft, and the rotating directions of the fourth gear hobbing shaft and the fifth gear hobbing shaft are opposite.

Further preferably, the distance between picks on the hobbing shaft of the upper layer hobbing is the minimum designed coal gangue particle size, and the distance between tooth sockets on the hobbing shaft of the upper layer hobbing is the maximum designed coal gangue particle size; the vertical distance between the cutting teeth on the gear shaft of the upper layer of hobbing and the cutting teeth on the gear shaft of the lower layer of hobbing is the minimum design coal gangue particle size.

Preferably, the hobbing shaft is cylindrical as a whole, a plurality of tooth grooves which are centrosymmetric are formed in the hobbing shaft, the parts among the tooth grooves are used as cutting teeth, and the circle center of the arc of the section of each tooth groove is located on the radius extension line of the section of the hobbing shaft.

It is still further preferred that the cutting pick edge of the hobbing shaft is provided with a plurality of projections or serrations along the axial direction.

Still further preferably, the upper part of the box body is provided with an opening, a hopper is arranged above the opening, and a baffle is arranged at the opening of the box body.

Still further preferably, a screen is arranged below the box body, a coal outlet is arranged in front of the box body, and a conveying screw is arranged at the bottom of the box body.

Still more preferably, the bottom of the box body is also provided with a road wheel or a crawler walking mechanism.

The beneficial effects of the utility model include:

(1) the coal gangue multidimensional crushing all-in-one machine is provided with upper and lower layers of hobbing teeth through arrangement, and the hobbing tooth shafts are arranged in a staggered mode, so that multidimensional crushing is achieved, crushing of long gangue is achieved, the distance between the hobbing tooth shafts is reasonably designed, and therefore coal gangue with certain particle size is directly conveyed to the bottom of a box, and coal gangue with large particle size is crushed by extrusion to a certain particle size range, and coal gangue with proper particle size is obtained.

(2) The integrated machine realizes two-stage crushing of the coal gangue, thereby avoiding the problem of incomplete crushing of the coal gangue, not increasing the coal slime amount and improving the lump coal rate; the coal gangue is crushed through tooth grooves and cutting teeth arranged on the surface of the hobbing shaft, so that uniform crushing is guaranteed; the gear hobbing shafts with the same rotating direction are arranged on the upper layer gear hobbing, so that the coal gangue with proper particle size can directly fall without being crushed, and the coal slime amount is reduced.

(3) In addition, the cutting teeth of the gear shaft are provided with bulges so as to more effectively crush the coal gangue, and the baffle plate arranged in the box body can prevent the coal gangue from falling off from the side surface; thereby can also set up the screen cloth below the box and realize the screening, the conveying screw that the bottom half set up will be broken to the gangue direct transfer of suitable diameter to the coal outlet in box the place ahead, obtain the gangue that the diameter is suitable from the coal outlet.

Drawings

FIG. 1 is a side view schematically showing the internal structure of a case;

FIG. 2 is a top view of the internal structure of the case;

FIG. 3 is a schematic diagram of a multi-dimensional crushing integrated structure of coal gangue in example 2;

in the figure: 1-upper layer hobbing; 2-lower layer hobbing; 3, a box body; 4-a power mechanism; 5-screening the screen; 6-conveying the spiral; 7-crawler traveling mechanism; 8-a first toothed shaft; 9-a second hob shaft; 10-a third hob shaft; 11-a fourth hob shaft; 12-a fifth hobbing shaft; 13-a hopper; 14-baffle.

Detailed Description

Referring to fig. 1 to 3, the present invention provides a multi-dimensional coal gangue crushing integrated structure, function and usage method as follows.

Example 1

A multi-dimensional coal gangue breaking and screening integrated machine is shown in figures 1 and 2 and structurally comprises upper layer gear hobbing, lower layer gear hobbing, a box body and a power mechanism. Upper layer gear hobbing 1 and lower floor gear hobbing 2 are used for broken gangue, thereby the box 3 internal seal has beneficial effects such as dust fall, and power unit 4 includes transmission coupling mechanism such as motor, gear and speed reducer, and power unit 4 drives the gear shaft and rotates, provides power for the breakage of all-in-one. Wherein upper layer gear hobbing 1 and lower floor gear hobbing 2 set up in the box, and upper layer gear hobbing 1 and lower floor gear hobbing 2 all include the gear hobbing axle more than 2, can reasonable in design's gear hobbing axle quantity according to the size of use scene and box 3, and the gear hobbing axle staggered arrangement of upper layer gear hobbing and lower floor gear hobbing, wherein the axis of lower floor gear hobbing axle is on the axis of two adjacent gear hobbing axles on the upper strata. The wheelbase between the upper layer hobbing shafts 1 is adjusted according to the designed particle size, and the vertical distance between the lower layer hobbing shafts 1 and the upper layer hobbing shafts 2 is also adjusted according to the designed particle size. In addition, the distance between the hobbing shafts can be adjusted in the using process by arranging a plurality of hobbing shaft mounting holes; or manufacturing hobbing shafts with different diameters, and changing the particle size by replacing the hobbing shafts when crushing with different particle sizes. The height between the upper layer hobbing shaft 1 and the lower layer hobbing shaft 2 can also be set to be an adjustable structure, so that the corresponding crushing grain size adjustment is carried out.

The surface of the hobbing shaft is provided with a tooth groove and cutting teeth, the tooth groove and the cutting teeth are alternately arranged along the outer edge of the hobbing shaft, the tooth groove is sunken, the cutting teeth are protruded, and the coal gangue is crushed through impact of the cutting teeth and extrusion between the adjacent cutting teeth during rotation. The hobbing shaft is integrally cylindrical, a plurality of tooth grooves which are centrosymmetric are formed in the hobbing shaft, the part between the tooth grooves serves as a cutting tooth, the circle center of a circular arc of the section of the tooth groove is located on a radius extension line of the section of the hobbing shaft, and the coal gangue can not be broken in a transition mode due to the arc design, so that the lump coal rate is improved. A plurality of bulges or insections are axially arranged on the cutting tooth edge of the hobbing shaft, so that the coal gangue is better knocked and broken.

The coal gangue multidimensional crushing all-in-one machine is provided with upper and lower layers of hobbing teeth through arrangement, and the hobbing tooth shafts are arranged in a staggered mode, so that multidimensional crushing is achieved, crushing of long gangue is achieved, the distance between the hobbing tooth shafts is reasonably designed, and therefore coal gangue with certain particle size is directly conveyed to the bottom of a box, and coal gangue with large particle size is crushed by extrusion to a certain particle size range, and coal gangue with proper particle size is obtained. If the long-strip-shaped raw coal falls from the upper layer of hobbing, the long-strip-shaped raw coal is inclined between the upper layer of hobbing and the lower layer of hobbing, and the long-strip-shaped raw coal is extruded and crushed along with the rotation of the upper layer of hobbing shaft and the lower layer of hobbing shaft, so that the damage of the long-strip-shaped raw coal or gangue to the belt conveyor is avoided. The coal gangue is crushed in two stages, so that the problem of incomplete crushing of the coal gangue is solved, the coal slime amount is not increased, and the lump coal rate is improved.

In addition, the upper part of the box body 3 is also provided with an opening, a hopper 13 is arranged above the opening, and a baffle 14 is arranged at the opening of the box body 3, so that the coal gangue is prevented from falling along two sides of the box body 3. The screen cloth is arranged below the box body, and the generated coal powder is screened out, so that the coal gangue is prevented from being polluted by dust in the subsequent transportation process.

Example 2

The embodiment provides a small-size coal gangue multidimensional crushing all-in-one machine on the basis of embodiment 1, is suitable for underground working environment, and has the advantages of convenient movement, high working efficiency and the like

A small-sized coal and gangue multidimensional crushing all-in-one machine structurally comprises an upper layer roller 1, a lower layer hobbing 2, a box body 3, a power mechanism 4, a screen 5, a conveying screw 6 and a crawler travelling mechanism 7. Upper hobbing 1 and lower floor hobbing 2 are used for broken gangue, thereby the 3 internal seal of box has beneficial effects such as dust fall, and power unit drives the hobbing axle and rotates, for the broken power that provides of all-in-one, the dust of broken production is detached to the screen cloth, and box work efficiency has been guaranteed to transmission spiral 6, and crawler-type running gear 7 makes things convenient for the removal of all-in-one, makes the application scope of device wider.

The upper layer hobbing in the box body comprises a first hobbing shaft 8, a second hobbing shaft 9 and a third hobbing shaft 10, the first hobbing shaft 8 and the second hobbing shaft 9 rotate along the same direction, and the rotation directions of the third hobbing shaft 10 and the second hobbing shaft 9 are opposite. The lower-layer hobbing 2 in the box body 3 comprises a fourth hobbing shaft 11 and a fifth hobbing shaft 12, and the rotation directions of the fourth hobbing shaft 11 and the fifth hobbing shaft 12 are opposite. Two hobbing shafts rotating in the same direction in the upper layer hobbing 1 play a role in transferring, and the coal gangue with the proper particle size falls to the lower layer hobbing 2 through a gap between the hobbing shafts and then is conveyed to a position between the two hobbing shafts rotating in opposite directions, and the coal gangue with the large particle size is extruded and knocked by picks on the hobbing shafts, so that the coal gangue with the proper particle size is crushed.

The distance between the picks on the hobbing shaft of the upper layer hobbing 1 is the minimum design coal gangue particle size, the distance between the tooth sockets on the hobbing shaft of the upper layer hobbing 1 is the maximum design coal gangue particle size, and the tooth sockets and the pick edges are arc-shaped so as to ensure the uniform change of the particle size. The vertical distance between the cutting teeth on the gear shaft of the upper layer of hobbing and the cutting teeth on the gear shaft of the lower layer of hobbing is the minimum design coal gangue particle size.

The hobbing shaft is wholly cylindrical, a plurality of tooth grooves which are centrosymmetric are formed in the hobbing shaft, parts between the tooth grooves are used as cutting teeth, the circle center of a circular arc of the section of each tooth groove is located on a radius extension line of the section of the hobbing shaft, and the coal gangue can not be broken in a transition mode due to the arc design, so that the lump coal rate is improved. A plurality of bulges or insections are axially arranged on the cutting tooth edge of the hobbing shaft, so that the coal gangue can be better knocked and broken. The upper part of the box body is provided with an opening, a hopper is arranged above the opening, a baffle is further arranged at the opening of the box body, and the baffle is obliquely arranged so that the coal gangue can be prevented from falling from the two sides of the box body. The screen is also arranged below the box body, the aperture of the screen is smaller than the minimum designed coal gangue particle size of the gangue, and the generated coal powder falls down from the screen, so that the pollution of dust to the coal gangue in the subsequent belt conveying process is avoided. A coal outlet is formed in the front of the box body, a conveying screw is further arranged at the bottom of the box body, and the crushed coal gangue with the proper particle size is conveyed to the coal outlet, so that the working efficiency of the crusher is guaranteed. The bottom of the box body is also provided with a traveling wheel or a crawler traveling mechanism, so that the movement of the integrated machine is facilitated, and the integrated machine is suitable for the underground working environment.

The coal gangue multidimensional crushing all-in-one machine is provided with an upper layer of hobbing and a lower layer of hobbing, and the hobbing shafts are arranged in a staggered mode, so that multidimensional crushing is realized, long-strip gangue is crushed, the picks of the hobbing shafts are provided with bulges, so that the coal gangue can be crushed more effectively, and baffles are arranged in the box body to prevent the coal gangue from falling off from the side face; thereby can also set up the screen cloth below the box and realize the screening, the conveying screw that the bottom half set up will be broken to the gangue direct transfer of suitable diameter to the coal outlet in box the place ahead, obtain the gangue that the diameter is suitable from the coal outlet.

In addition, through in the production of certain ore deposit raw coal, use the hammer crusher who sets up above the elevating conveyor initially, carry out the breakage to the gangue of output, because the condition that the rectangular gangue more than 300mm destroys band conveyer in the transportation often takes place, use the small-size coal gangue multidimension broken all-in-one that this embodiment provided now, cooperate above-mentioned all-in-one equipment and elevating conveyor, send into all-in-one equipment with the raw coal from the hopper, through the breakage of this all-in-one, long banding or bold gangue problem of destroying band conveyer has been solved, and the clean coal rate of recovery has improved 1%, bring better economic benefits for this ore deposit.

Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.

Claims (8)

1. The coal and gangue multidimensional crushing and screening integrated machine is characterized by comprising upper-layer hobbing teeth, lower-layer hobbing teeth, a box body and a power mechanism, wherein the upper-layer hobbing teeth and the lower-layer hobbing teeth are arranged in the box body; the upper layer gear hobbing and the lower layer gear hobbing respectively comprise more than 2 gear hobbing shafts, and the gear hobbing shafts of the upper layer gear hobbing and the lower layer gear hobbing are arranged in a staggered mode; the power mechanism drives the gear shaft to rotate; the surface of the hobbing shaft is provided with tooth grooves and cutting teeth, and the tooth grooves and the cutting teeth are alternately arranged along the outer edge of the hobbing shaft.

2. The coal and gangue multidimensional crushing and screening all-in-one machine as claimed in claim 1, wherein the upper layer hobbing in the box body comprises a first hobbing shaft, a second hobbing shaft and a third hobbing shaft, the first hobbing shaft and the second hobbing shaft rotate along the same direction, and the third hobbing shaft and the second hobbing shaft rotate in opposite directions; the lower layer of hobbing in the box body comprises a fourth hobbing shaft and a fifth hobbing shaft, and the rotation directions of the fourth hobbing shaft and the fifth hobbing shaft are opposite.

3. The coal and gangue multidimensional crushing and screening all-in-one machine as claimed in claim 1 or 2, wherein the distance between the picks on the hobbing shaft of the upper layer hobbing is the minimum designed coal gangue particle size, and the distance between the tooth grooves on the hobbing shaft of the upper layer hobbing is the maximum designed coal gangue particle size; the vertical distance between the cutting teeth on the gear shaft of the upper layer of hobbing and the cutting teeth on the gear shaft of the lower layer of hobbing is the minimum design coal gangue particle size.

4. The coal and gangue multidimensional crushing and screening integrated machine as claimed in claim 1 or 2, wherein the hobbing shaft is cylindrical as a whole, a plurality of tooth grooves which are centrosymmetric are formed in the hobbing shaft, the parts among the tooth grooves are used as cutting teeth, and the circle center of the arc of the section of each tooth groove is positioned on the radius extension line of the section of the hobbing shaft.

5. The coal and gangue multi-dimensional crushing and screening integrated machine as claimed in claim 4, wherein a plurality of bulges or insections are axially arranged on the cutting tooth edge of the hobbing shaft.

6. The coal gangue multidimensional crushing and screening all-in-one machine as claimed in claim 1 or 2, wherein an opening is arranged at the upper part of the box body, a hopper is arranged above the opening, and a baffle is further arranged at the opening of the box body.

7. The coal gangue multidimensional crushing and screening all-in-one machine as claimed in claim 1 or 2, wherein a screen is arranged below the box body, a coal outlet is arranged in front of the box body, and a conveying screw is further arranged at the bottom of the box body.

8. The coal and gangue multidimensional crushing and screening all-in-one machine as claimed in claim 1 or 2, wherein the bottom of the box body is further provided with a traveling wheel or a crawler traveling mechanism.

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