CN214863933U

CN214863933U - Coal grinding equipment for power plant boiler

Info

Publication number: CN214863933U
Application number: CN202120430434.0U
Authority: CN
Inventors: 邹永; 王立坤
Original assignee: Hohhot Jinqiao Thermal Power Plant Of North United Electric Power Co Ltd
Current assignee: Hohhot Jinqiao Thermal Power Plant Of North United Electric Power Co Ltd
Priority date: 2021-02-28
Filing date: 2021-02-28
Publication date: 2021-11-26
Anticipated expiration: 2031-02-28

Abstract

The utility model discloses a power plant is coal grinding equipment for boiler relates to coal processing technology field, including broken case, the first motor of one side bottom fixedly connected with of broken case, the front end swing joint of first motor has the action wheel, one side swing joint of action wheel has the drive belt, the other end swing joint of drive belt has from the driving wheel, the opposite side from the driving wheel runs through broken case and fixedly connected with gear, the broken wheelset of opposite side fixedly connected with of gear. This power plant boiler is with coal grinding equipment can drive the action wheel through first motor and rotate to can drive from the driving wheel via the drive belt and rotate, with this can realize driving the gear rotation from the driving wheel, through a plurality of gear intermeshing, thereby can drive a plurality of broken wheelsets and rotate with two adjacent opposite direction's mode, can realize carrying out the breakage to the inside bold coal of broken case with this, and then make the process at back go on more easily.

Description

Coal grinding equipment for power plant boiler

Technical Field

The utility model relates to a coal processing technology field specifically is a power plant is coal grinding equipment for boiler.

Background

The coal grinding process is a process in which coal is crushed and its surface area is increased continuously. To increase the new surface area, the binding force between solid molecules must be overcome, and thus energy is consumed. The coal is ground into coal powder in a coal mill mainly by three modes of crushing, smashing and grinding. Wherein the energy consumed by the crushing process is the least. The grinding process is most energy intensive. The two or three modes of the various coal mills are combined in the pulverizing process, but the main mode is determined by the type of the coal mill.

The coal mill has many types, can be divided into three types according to the rotating speed of a coal grinding working part, namely a low-speed coal mill, a medium-speed coal mill and a high-speed coal mill, and the existing coal grinding equipment has the defects of complex structure and difficulty in maintenance once problems occur, has poor crushing effect, needs to be manually crushed before large coal blocks are encountered to be thrown into the equipment for processing, and has the defect of very trouble in use.

Therefore, it is necessary to provide a coal grinding apparatus for a power plant boiler to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide a power plant is coal grinding equipment for boiler to current coal grinding equipment who proposes in solving above-mentioned background art still has the comparatively complicated shortcoming of structure in case the problem is difficult to carry out the maintenance, and current coal grinding equipment crushing effect is not good, need the manual work to carry out the broken back in advance and just can throw into the equipment and process when meetting great coal cinder, uses very troublesome problem.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a power plant is coal-grinding equipment for boiler, includes broken case, the first motor of one side bottom fixedly connected with of broken case, the front end swing joint of first motor has the action wheel, one side swing joint of action wheel has the drive belt, the other end swing joint of drive belt has from the driving wheel, the opposite side from the driving wheel runs through broken case and fixedly connected with gear, the broken wheelset of opposite side fixedly connected with of gear, the fixed mill of the bottom fixedly connected with of broken case, the bottom fixedly connected with top arch of fixed mill, the unloading hole has been seted up to the inside of fixed mill.

Preferably, the bottom edge fixedly connected with bracing piece of broken case, the bottom fixedly connected with of bracing piece grinds the case, grind the inboard fixedly connected with motor mount of case, the other end fixedly connected with second motor of motor mount, the inside swing joint of second motor has the bull stick, the top fixedly connected with of bull stick rotates the mill, it is protruding to rotate the last fixed surface of mill connected with bottom, the relief hole has been seted up to the bottom of grinding the case, grind one side fixedly connected with stabilizer blade of case.

Preferably, the number of the gears and the number of the crushing wheel sets are multiple, the gears are meshed with each other, and the crushing wheel sets are distributed in a staggered mode.

Preferably, the fixed grinding disc and the rotating grinding disc are parallel to each other and equal in size.

Preferably, the number of the top bulges and the number of the bottom bulges are multiple, and the top bulges and the bottom bulges are distributed in an annular array.

Preferably, the transmission belt is tightly attached to the driving wheel and the driven wheel.

Preferably, the number of the supporting feet is multiple, and the multiple supporting feet are distributed in an annular array.

(III) advantageous effects

Compared with the prior art, the utility model provides a power plant is coal grinding equipment for boiler possesses following beneficial effect:

1. this power plant boiler is with coal grinding equipment can drive the action wheel through first motor and rotate to can drive from the driving wheel via the drive belt and rotate, with this can realize driving the gear rotation from the driving wheel, through a plurality of gear intermeshing, thereby can drive a plurality of broken wheelsets and rotate with two adjacent opposite direction's mode, can realize carrying out the breakage to the inside bold coal of broken case with this, and then make the process at back go on more easily.

2. This power plant is coal grinding equipment for boiler, the bull stick through the second motor inside can drive and rotate the mill and rotate, protruding mutual adaptation in top with fixed mill lower surface of bottom through rotating the mill upper surface, thereby can grind the coal that the upper end breakage was accomplished once more, make its granule more even tiny, so that its combustion effect is better, can discharge the coal granule that finishes processing through the relief hole, simple structure convenient operation, and it damages still is difficult to take place.

Drawings

Fig. 1 is a schematic perspective view of the structure of the present invention;

fig. 2 is a first schematic perspective cross-sectional view of the structure of the present invention;

fig. 3 is a second schematic perspective cross-sectional view of the structure of the present invention;

FIG. 4 is a schematic view of the structure of the present invention in a partial perspective cross-section;

fig. 5 is an enlarged schematic view of the structure of the area a in fig. 4 according to the present invention.

In the figure: 1. a crushing box; 2. a first motor; 3. a driving wheel; 4. a transmission belt; 5. a driven wheel; 6. a gear; 7. a crushing wheel set; 8. fixing the grinding disc; 9. a blanking hole; 10. the top is convex; 11. a support bar; 12. grinding a box; 13. a motor fixing frame; 14. a second motor; 15. a rotating rod; 16. rotating the grinding disc; 17. the bottom is convex; 18. a discharge hole; 19. and (3) a support leg.

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.

Referring to fig. 1-5, a coal grinding device for a boiler of a power plant comprises a crushing box 1, a support rod 11 is fixedly connected to the bottom edge of the crushing box 1, a grinding box 12 is fixedly connected to the bottom end of the support rod 11, a motor fixing frame 13 is fixedly connected to the inner side of the grinding box 12, a second motor 14 is fixedly connected to the other end of the motor fixing frame 13, a rotating rod 15 inside the second motor 14 can drive a rotating grinding disc 16 to rotate, a bottom bulge 17 on the upper surface of the rotating grinding disc 16 is matched with a top bulge 10 on the lower surface of the fixed grinding disc 8, so that coal crushed at the upper end can be ground again, particles of the coal are more uniform and fine, the combustion effect of the coal is better, the processed coal particles can be discharged through a discharge hole 18, the structure is simple and convenient to operate, the coal grinding device is not easy to damage, a rotating rod 15 is movably connected inside the second motor 14, the top end of the rotating rod 15 is fixedly connected with a rotating grinding disc 16, the upper surface of the rotating grinding disc 16 is fixedly connected with a bottom bulge 17, the bottom end of the grinding box 12 is provided with a discharge hole 18, one side of the grinding box 12 is fixedly connected with a plurality of support legs 19, the number of the support legs 19 is a plurality, the plurality of support legs 19 are distributed in an annular array, the product can be supported by the plurality of support legs 19, so that the product can be operated more stably, meanwhile, coal which is processed more conveniently is discharged from the discharge hole 18, one side of the crushing box 1 is fixedly connected with a first motor 2, the first motor 2 can drive a driving wheel 3 to rotate, so that the driven wheel 5 can be driven by a driving belt 4 to rotate, so that the driven wheel 5 can drive a gear 6 to rotate, the gears 6 are meshed with each other, so that a plurality of crushing wheel groups 7 can be driven to rotate in two adjacent opposite directions, therefore, the large coal inside the crushing box 1 can be crushed, and further the following processes are easier to carry out, the front end of the first motor 2 is movably connected with the driving wheel 3, one side of the driving wheel 3 is movably connected with the transmission belt 4, the driving wheel 3 and the driven wheel 5 are tightly attached, the transmission of power can be realized only by the tight attachment, the other end of the transmission belt 4 is movably connected with the driven wheel 5, the other side of the driven wheel 5 penetrates through the crushing box 1 and is fixedly connected with the gear 6, the number of the gear 6 and the crushing wheel set 7 is multiple, the gears 6 are mutually meshed, the crushing wheel sets 7 are mutually and alternately distributed, so that the large coal can be crushed more uniformly, the other side of the gear 6 is fixedly connected with the crushing wheel set 7, the bottom end of the crushing box 1 is fixedly connected with the fixed grinding disc 8, the fixed grinding disc 8 and the rotary grinding disc 16 are mutually parallel and have the same size, the protruding 10 in bottom fixedly connected with top of fixed mill 8, the protruding 10 in top is a plurality ofly with the protruding 17 quantity in bottom, and the protruding 10 in a plurality of tops all is annular array distribution with the protruding 17 in bottom, and unloading hole 9 has been seted up to fixed mill 8's inside.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

The working principle is as follows: when the coal crusher is used, the top of the crushing box 1 is placed on coal to be processed, then the driving wheel 3 can be driven to rotate through the first motor 2, so that the driven wheel 5 can be driven to rotate through the driving belt 4, the rotation of the gear 6 driven by the driven wheel 5 can be realized, the plurality of crushing wheel sets 7 can be driven to rotate in two adjacent opposite directions through the mutual meshing of the plurality of gears 6, the crushing of large coal inside the crushing box 1 can be realized, the crushed coal falls below the crushing box and falls between the fixed grinding disc 8 and the rotating grinding disc 16 through the discharging hole 9, the rotating rod 15 inside the second motor 14 can drive the rotating grinding disc 16 to rotate, the bottom bulge 17 on the upper surface of the rotating grinding disc 16 is matched with the top bulge 10 on the lower surface of the fixed grinding disc 8, and the coal crushed at the upper end can be ground again, make its granule more even tiny, so that its combustion effect is better, can bridge broken case 1 and mill case 12 through many spinal branchs vaulting pole 11, mill case 12 inside is fixed with motor mount 13 and can support second motor 14, thereby can make this product normal operating, can support this product through a plurality of stabilizer blades 19, thereby make this product can be more stable move, coal after also making things convenient for processing more simultaneously is discharged from relief hole 18, this product simple structure convenient operation, and still be difficult to take place to damage, it is more convenient to use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a power plant is coal grinding equipment for boiler, includes broken case (1), its characterized in that: the utility model discloses a grinding wheel, including broken case (1), one side bottom fixedly connected with first motor (2) of broken case (1), the front end swing joint of first motor (2) has action wheel (3), one side swing joint of action wheel (3) has drive belt (4), the other end swing joint of drive belt (4) has from driving wheel (5), run through broken case (1) and fixedly connected with gear (6) from the opposite side of driving wheel (5), broken wheelset (7) of opposite side fixedly connected with of gear (6), the fixed mill (8) of bottom fixedly connected with of broken case (1), the protruding (10) in bottom fixedly connected with top of fixed mill (8), unloading hole (9) have been seted up to the inside of fixed mill (8).

2. The coal grinding equipment for the power plant boiler according to claim 1, characterized in that: the utility model discloses a grinding machine, including grinding box (12), inboard fixedly connected with motor mount (13) of grinding box (12), the other end fixedly connected with second motor (14) of motor mount (13), the inside swing joint of second motor (14) has bull stick (15), the top fixedly connected with of bull stick (15) rotates mill (16), it is protruding (17) in fixed surface connection bottom to rotate the last fixedly connected with of mill (16), relief hole (18) have been seted up to the bottom of grinding box (12), one side fixedly connected with stabilizer blade (19) of grinding box (12).

3. The coal grinding equipment for the power plant boiler according to claim 1, characterized in that: the number of the gears (6) and the number of the crushing wheel sets (7) are both multiple, the gears (6) are meshed with each other, and the crushing wheel sets (7) are distributed in a staggered mode.

4. The coal grinding equipment for the power plant boiler according to claim 1, characterized in that: the fixed grinding disc (8) and the rotating grinding disc (16) are parallel to each other and have the same size.

5. The coal grinding equipment for the power plant boiler according to claim 1, characterized in that: the number of the top bulges (10) and the number of the bottom bulges (17) are multiple, and the top bulges (10) and the bottom bulges (17) are distributed in an annular array.

6. The coal grinding equipment for the power plant boiler according to claim 1, characterized in that: the transmission belt (4) is tightly attached to the driving wheel (3) and the driven wheel (5).

7. The coal grinding equipment for the power plant boiler according to claim 2, characterized in that: the number of the supporting feet (19) is multiple, and the supporting feet (19) are distributed in an annular array.