CN211612891U

CN211612891U - Coal mill

Info

Publication number: CN211612891U
Application number: CN201821816600.5U
Authority: CN
Inventors: 赵林宣; 赵林伍; 张宁; 赵亮
Original assignee: Jianshi Taifeng Cement Co ltd
Current assignee: Jianshi Taifeng Cement Co ltd
Priority date: 2018-11-06
Filing date: 2018-11-06
Publication date: 2020-10-02
Anticipated expiration: 2028-11-06

Abstract

The utility model discloses a coal pulverizer, relate to the colliery processingequipment field, reducing mechanism includes the runner stone and lower mill, reducing mechanism adopts the runner stone to carry out the coal cinder with lower mill and smashes, smash with adopting crushing blade and compare, crushing effect improves greatly, and be provided with on the inner wall of crushing shell and be used for restricting lower mill pivoted rectangle stopper, the second is smashed the motor and can be passed through down the mill and slide from top to bottom along the rectangle stopper through well core rod drive, lower mill slides from top to bottom along the rectangle stopper, the distance between runner stone and the lower mill changes, the coal pulverizer can be according to the distance between coal cinder size adjustment runner stone and the lower mill, the coal pulverizer crushing effect is fine, and machining efficiency improves greatly.

Description

Coal mill

Technical Field

The utility model relates to a colliery processingequipment field especially relates to a coal pulverizer.

Background

The coal pulverizer is the machinery of smashing the coal cinder and grinding into buggy, and coal pulverizer processing mode is diversified, and the most commonly used mode adopts broken rotor to carry out elementary breakage to the coal cinder, adopts the mode that crushing blade smashed the formation buggy to the coal cinder after elementary breakage afterwards, adopts above-mentioned mode coal cinder processing cost low, nevertheless adopts broken rotor and crushing blade cooperation to process the coal cinder, consuming time is long, and machining efficiency is low, and the buggy is smashed inadequately, and the processing effect is poor.

Therefore, it is an urgent problem to provide a coal mill with high processing efficiency and good processing effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a coal pulverizer to solve the problem that above-mentioned prior art exists, make coal pulverizer machining efficiency high, and process effectually.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a coal mill, which comprises a crushing device, a conveying device and a crushing device which are sequentially communicated, wherein the crushing device comprises a crushing shell, a crushing motor and a knife roll, the crushing motor is used for driving the knife roll to rotate in the crushing shell, the crushing device comprises a crushing shell, an upper millstone, a lower millstone, a central rod, a first crushing motor and a second crushing motor, the upper millstone and the lower millstone are oppositely arranged in the crushing shell from top to bottom, the upper millstone is provided with a plurality of feed through holes, the lower millstone is provided with a plurality of discharge through holes, the first crushing motor is used for driving the upper millstone to rotate, the inner wall of the crushing shell is provided with a rectangular stopper for limiting the rotation of the lower millstone, the lower millstone is provided with a limiting groove matched with the rectangular stopper, the lower millstone can be followed the rectangle stopper slides from top to bottom, well core rod with the output of second crushing motor is connected, just well core rod is provided with the external screw thread, a mounting hole has been seted up at the lower millstone center, be provided with the internal thread on the inner wall of mounting hole, well core rod with the inner wall threaded connection of mounting hole, the head stone is close to down the terminal surface of millstone and the lower millstone is close to the terminal surface of head stone all is provided with a plurality of grinding teeth, the lower extreme of crushing shell is provided with the ejection of compact lid.

Preferably, the crushing motor, the first crushing motor and the second crushing motor are all coding motors.

Preferably, the conveying device comprises a conveying shell and a scraper conveyor arranged inside the conveying shell, and the conveying shell is communicated with the crushing device and the crushing device.

Preferably, the pulverizing casing is provided at a lower end thereof with a plurality of supporting means.

Preferably, the support device is a telescopic rod.

Preferably, the grinding teeth are strip-shaped grinding teeth.

Preferably, a plurality of grinding teeth on the end surface of the upper grinding disc close to the lower grinding disc are uniformly arranged along the circumferential direction of the upper grinding disc, and a plurality of grinding teeth on the end surface of the lower grinding disc close to the upper grinding disc are uniformly arranged along the circumferential direction of the lower grinding disc.

Preferably, a plurality of grinding teeth are fixed to the end face of the upper grinding disc close to the lower grinding disc and the end face of the lower grinding disc close to the upper grinding disc through screws.

The utility model discloses for prior art gain following technological effect:

the utility model provides a coal pulverizer reducing mechanism includes the head stone and lower mill, reducing mechanism adopts the head stone and carries out the coal cinder with lower mill and smashes, smash with the adoption and compare, crushing effect improves greatly, and be provided with on crushing shell's the inner wall and be used for restricting lower mill pivoted rectangle stopper, the second is smashed the motor and can be driven down the mill through well core rod and slide from top to bottom along the rectangle stopper, lower mill slides from top to bottom along the rectangle stopper, the distance between head stone and the lower mill changes, the coal pulverizer can be according to the distance between coal cinder size adjustment head stone and the lower mill, coal pulverizer crushing effect is fine, and machining efficiency improves greatly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a coal mill provided by the present invention;

FIG. 2 is a schematic structural view of an upper millstone in the coal mill provided by the present invention;

FIG. 3 is a schematic structural view of a lower grinding disc in the coal mill provided by the present invention;

the grinding device comprises a grinding shell 1, a cutter roll 2, a crushing motor 3, a conveying shell 4, a scraper conveyor 5, a grinding shell 6, a first grinding motor 7, a second grinding motor 8, an inclined plate 9, an upper grinding disc 10, a lower grinding disc 11, grinding teeth 12, a feeding through hole 13, a discharging through hole 14, a central rod 15, a rectangular limiting block 16, a limiting groove 17, a discharging cover 18 and a supporting device 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model aims at providing a coal pulverizer to solve the problem that prior art exists, make coal pulverizer machining efficiency high, and process effectually.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Example one

As shown in fig. 1-3, this embodiment provides a coal mill, which includes a crushing device, a conveying device, and a crushing device that are sequentially connected, where the crushing device includes a crushing shell 1, a crushing motor 3, and a knife roll 2, the crushing motor 3 is used to drive the knife roll 2 to rotate in the crushing shell 1, the crushing device includes a crushing shell 6, an upper millstone 10, a lower millstone 11, a central rod 15, a first crushing motor 7, and a second crushing motor 8, the upper millstone 10 and the lower millstone 11 are oppositely disposed inside the crushing shell 6 from top to bottom, the upper millstone 10 is provided with a plurality of feed through holes 13, the lower millstone 11 is provided with a plurality of discharge through holes 14, the first crushing motor 7 is used to drive the upper millstone 10 to rotate, a rectangular limit block 16 for limiting the rotation of the lower millstone 11 is disposed on the inner wall of the crushing shell 6, the lower millstone, the lower grinding disc 11 can slide up and down along the rectangular limit block 16, the central rod 15 is connected with the output end of the second grinding motor 8, the central rod 15 is provided with an external thread, the center of the lower grinding disc 11 is provided with a mounting hole, the inner wall of the mounting hole is provided with an internal thread, the central rod 15 is in threaded connection with the inner wall of the mounting hole, the end surface of the upper grinding disc 10 close to the lower grinding disc 11 and the end surface of the lower grinding disc 11 close to the upper grinding disc 10 are both provided with a plurality of grinding teeth 12, the lower end of the grinding shell 6 is provided with a discharging cover 18, the coal grinding device provided by the utility model adopts the upper grinding disc 10 and the lower grinding disc 11 to grind coal blocks, compared with grinding by adopting a grinding blade, the grinding effect is greatly improved, the rectangular limit block 16 used for limiting the rotation of the lower grinding disc 11 is arranged on the inner wall of the grinding shell 6, the lower grinding disc 11 slides up and down along the rectangular limiting block 16, the distance between the upper grinding disc 10 and the lower grinding disc 11 changes, the coal mill can adjust the distance between the upper grinding disc 10 and the lower grinding disc 11 according to the size of coal blocks, the coal mill has a good crushing effect, and the processing efficiency is greatly improved.

In the utility model discloses in another embodiment, broken motor 3, first crushing motor 7 and second crushing motor 8 are the coding motor, and the coal pulverizer includes control system, but through the work of control system automatic control broken motor 3, first crushing motor 7 and second crushing motor 8, coal pulverizer convenient to use.

In another embodiment of the present invention, the conveying device comprises a conveying shell 4 and a scraper conveyor 5 disposed inside the conveying shell 4, and the conveying shell 4 is communicated with the crushing device and the crushing device.

In another embodiment of the present invention, the lower end of the pulverizing casing 6 is provided with 3 supporting devices 19, so that the coal mill is more stable.

In the utility model discloses another embodiment, strutting arrangement 19 is the telescopic link, and the inclination that lies in different positions strutting arrangement 19 through the adjustment can adjust reducing mechanism and the whole height of reducing mechanism, and the coal pulverizer use is more convenient.

In the utility model discloses in another embodiment, the gerar grinding 12 is strip gerar grinding 12, a plurality of gerar grinding 12 that are located on the terminal surface that the head stone grinding 10 is close to lower mill 11 evenly set up along the circumference of head stone grinding 10, a plurality of gerar grinding 12 that are located on the terminal surface that the head stone grinding 11 is close to lower mill 10 evenly set up along the circumference of lower mill 11 down, and be located and all be provided with feed through hole 13 between two adjacent gerar grinding 12 on head stone grinding 10 is close to the terminal surface of lower mill 11, it all is provided with discharging hole 14 to be located between two adjacent gerar grinding 12 on head stone grinding 11 is close to lower mill 10 down.

In another embodiment of the present invention, a plurality of grinding teeth 12 are fixed to the end surface of the upper grinding disc 10 close to the lower grinding disc 11 and the end surface of the lower grinding disc 11 close to the upper grinding disc 10 by screws, so that the grinding teeth 12 are conveniently replaced, and the coal mill has a long service life.

In the utility model discloses in another embodiment, reducing mechanism includes the feed inlet, and reducing mechanism passes through the feed inlet and is connected with conveyor, is located and is provided with an swash plate 9 in the position that is located 6 inside feed inlets under of crushing shell, and the wall connection in swash plate 9 one end and crushing shell 6, the swash plate 9 other end are located millstone 10 feed-in through hole 13 directly over, so set up, in the feed-in through hole 13 of the entering millstone 10 that the coal cinder that carries through conveyor can be steady accurate, the coal pulverizer machining efficiency is higher.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. A coal pulverizer, characterized in that: comprises a crushing device, a conveying device and a crushing device which are sequentially communicated, wherein the crushing device comprises a crushing shell, a crushing motor and a knife roll, the crushing motor is used for driving the knife roll to rotate in the crushing shell, the crushing device comprises a crushing shell, an upper grinding disc, a lower grinding disc, a central rod, a first crushing motor and a second crushing motor, the upper grinding disc and the lower grinding disc are oppositely arranged in the crushing shell from top to bottom, the upper grinding disc is provided with a plurality of feeding through holes, the lower grinding disc is provided with a plurality of discharging through holes, the first crushing motor is used for driving the upper grinding disc to rotate, a rectangular limiting block used for limiting the rotation of the lower grinding disc is arranged on the inner wall of the crushing shell, a limiting groove matched with the rectangular limiting block is arranged on the lower grinding disc, and the lower grinding disc can slide up and down along the rectangular limiting block, the utility model discloses a grinding machine, including the mill shell, well core rod, lower mill center, a plurality of mill teeth, the interior wall of mounting hole is provided with the internal thread, well core rod with the inner wall threaded connection of mounting hole, the top abrasive disc is close to the terminal surface of lower mill and the lower mill is close to the terminal surface of top abrasive disc all is provided with a plurality of mill teeth, the lower extreme of crushing shell is provided with the unloading lid.

2. The coal pulverizer of claim 1, wherein: the crushing motor, the first crushing motor and the second crushing motor are all coding motors.

3. The coal pulverizer of claim 1, wherein: the conveying device comprises a conveying shell and a scraper conveyor arranged in the conveying shell, and the conveying shell is communicated with the crushing device and the crushing device.

4. The coal pulverizer of claim 1, wherein: the lower end of the crushing shell is provided with a plurality of supporting devices.

5. The coal pulverizer of claim 4, wherein: the supporting device is a telescopic rod.

6. The coal pulverizer of claim 1, wherein: the grinding teeth are strip-shaped grinding teeth.

7. The coal pulverizer of claim 6, wherein: the grinding teeth on the end face of the lower grinding disc are uniformly arranged in the circumferential direction of the upper grinding disc, and the grinding teeth on the end face of the lower grinding disc are uniformly arranged in the circumferential direction of the lower grinding disc.

8. The coal pulverizer of claim 1, wherein: the grinding teeth are fixed to the end face, close to the lower grinding disc, of the upper grinding disc and the end face, close to the upper grinding disc, of the lower grinding disc through screws.