CN218690271U

CN218690271U - Coal grinding equipment for power plant boiler

Info

Publication number: CN218690271U
Application number: CN202223008720.1U
Authority: CN
Inventors: 张凯; 曹迎军; 王涛; 刘乐; 王思远
Original assignee: Huaneng Qinbei Power Generation Co Ltd
Current assignee: Huaneng Qinbei Power Generation Co Ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-03-24
Anticipated expiration: 2032-11-11

Abstract

The utility model relates to a thermal power field discloses a power boiler coal grinding equipment, including the broken jar, the top fixedly connected with driving motor of broken jar, driving motor's output fixedly connected with pivot, the equal fixedly connected with crushing roller in outer wall both sides of pivot, the equal fixedly connected with fixed roll in inner wall both sides of broken jar. The utility model discloses in, it rotates to drive the pivot through starting driving motor, thereby it rotates to drive the crushing roller, tentatively smash the coal cinder, get into and pulverize the incasement, it rotates to start double-end motor drive connecting rod, thereby make the gear move on the rack, and then drive and pulverize the coal cinder of roller on to the filter and carry out careful rolling, it makes the filter vibrations to start shock dynamo, thereby the messenger is less than and filters the quick fall of diaphragm orifice purpose, it continues to roll until being less than filter diaphragm orifice to be greater than filter diaphragm orifice purpose, thereby the efficiency that the coal cinder ground has been improved, the inhomogeneous problem of coal cinder grinding has also been solved.

Description

Coal grinding equipment for power plant boiler

Technical Field

The utility model relates to a thermal power field especially relates to a power boiler coal grinding equipment.

Background

The power boiler of power plant is the boiler that is used for the electricity generation, and is capacious, mainly be divided into buggy stove and circulating fluidized bed boiler, wherein the fuel that the buggy stove used is the buggy, and the coal of exploiting out at present is the cubic, consequently need grind cubic coal into likepowder, just can be used for the fuel of power boiler, thereby generate electricity and use, the fragile and fragile of coal matter, the process of the mill coal commonly used on the market at present is through the crusher to coal crushing earlier, grind again, coal is when being crushed, often can break and scatter, it is inhomogeneous not to be difficult for collecting the grinding.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a coal grinding device for a boiler in a power plant.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a power plant boiler coal grinding equipment, includes broken jar, the top fixedly connected with driving motor of broken jar, driving motor's output fixedly connected with pivot, the equal fixedly connected with crushing roller in outer wall both sides of pivot, the equal fixedly connected with fixed roll in inner wall both sides of broken jar, the fixed roll meshes with the crushing roller mutually, the hopper is gone up to the bottom fixedly connected with of broken jar, the bottom fixed connection who goes up the hopper is on the top that pulverizes the case, pulverize the inner wall both sides of case and all set up flutedly, one side fixedly connected with rack of recess, the rack meshes with the gear mutually, the equal fixed connection in one side of gear is in the one end of connecting rod, the one end fixed connection of connecting rod is at double-end motor's output, one side fixed connection of double-end motor is at the inner wall middle part of crushing roller, the outer wall of connecting rod rotates and connects at the inner wall both ends of crushing roller, the upper surface at the filter of outer wall connection, the bottom fixed connection of filter is at the output of double-end motor, one side fixed connection of vibrations is at the inner wall of pulverizing case.

As a further description of the above technical solution:

the utility model discloses a special fox-cleaning device, including pulverize the upper surface of case, pulverize upper surface one side fixedly connected with collecting box of case, threo search the top fixedly connected with air-out pipe of fox collecting box, the bottom of air-out pipe runs through the top of collecting box and extends to inside, the top fixed connection of air-out pipe is at the output of fan, the input fixedly connected with air-supply line of fan.

As a further description of the above technical solution:

the dust collector is characterized in that a hose is fixedly connected to the top end of the air inlet pipe, a connecting pipe is fixedly connected to the top end of the hose, and a dust collecting head is fixedly connected to the top end of the connecting pipe.

As a further description of the above technical solution:

the equal fixedly connected with fixture block in bottom both ends of dust absorption head, the outer wall sliding connection of fixture block is at the outer wall of draw-in groove, the draw-in groove is seted up in upper surface one side of broken jar.

As a further description of the above technical solution:

the dust absorption head corresponds to the feed inlet, and the feed inlet is formed in one side of the upper surface of the crushing tank.

As a further description of the above technical solution:

the middle part of the outer wall of the crushing tank is fixedly connected with a support frame, and the bottom end of the support frame is fixedly connected to the upper surface of the crushing box.

As a further description of the above technical solution:

the bottom middle part fixedly connected with of grinding the case goes out the hopper down, grind the equal fixedly connected with supporting leg in bottom four corners of case.

The utility model discloses following beneficial effect has:

the utility model discloses in, it rotates to drive the pivot through starting driving motor, thereby it rotates to drive the crushing roller, tentatively smash the coal cinder, get into and pulverize the incasement, it rotates to start double-end motor drive connecting rod, thereby make the gear move on the rack, and then drive and pulverize the coal cinder of roller on to the filter and carry out careful rolling, it makes the filter vibrations to start shock dynamo, thereby the messenger is less than and filters the quick fall of diaphragm orifice purpose, it continues to roll until being less than filter diaphragm orifice to be greater than filter diaphragm orifice purpose, thereby the efficiency that the coal cinder ground has been improved, the inhomogeneous problem of coal cinder grinding has also been solved.

Drawings

FIG. 1 is a front view of a power plant boiler coal grinding apparatus according to the present invention;

FIG. 2 is a schematic view of the inside of a crushing tank of a coal grinding device of a boiler in a power plant according to the present invention;

FIG. 3 is a schematic view of the inside of a grinding box of a coal grinding device for a power plant boiler according to the present invention;

fig. 4 is a schematic view of the components of a coal grinding device for a boiler in a power plant according to the present invention.

Illustration of the drawings:

1. a crushing tank; 2. a drive motor; 3. a rotating shaft; 4. a crushing roller; 5. a fixed roller; 6. feeding a discharge hopper; 7. a grinding box; 8. a discharging hopper is arranged; 9. a groove; 10. a rack; 11. a gear; 12. a connecting rod; 13. a crushing roller; 14. a double-headed motor; 15. a filter plate; 16. vibrating a motor; 17. a collection box; 18. an air outlet pipe; 19. a fan; 20. an air inlet pipe; 21. a hose; 22. a connecting pipe; 23. a dust collection head; 24. a clamping block; 25. a card slot; 26. a feed inlet; 27. a support frame; 28. and (5) supporting legs.

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. 1-4, the present invention provides an embodiment: a power plant boiler coal grinding device comprises a crushing tank 1, a driving motor 2 is fixedly connected to the top end of the crushing tank 1, a rotating shaft 3 is fixedly connected to the output end of the driving motor 2, crushing rollers 4 are fixedly connected to both sides of the outer wall of the rotating shaft 3, fixing rollers 5 are fixedly connected to both sides of the inner wall of the crushing tank 1, the fixing rollers 5 are meshed with the crushing rollers 4, an upper hopper 6 is fixedly connected to the bottom end of the crushing tank 1, the bottom end of the upper hopper 6 is fixedly connected to the top end of a crushing box 7, grooves 9 are formed in both sides of the inner wall of the crushing box 7, a rack 10 is fixedly connected to one side of each groove 9, the rack 10 is meshed with a gear 11, one side of each gear 11 is fixedly connected to one end of a connecting rod 12, one end of each connecting rod 12 is fixedly connected to the output end of a double-head motor 14, one side of the double-head motor 14 is fixedly connected to the middle portion of the inner wall of a crushing roller 13, the outer wall of each connecting rod 12 is rotatably connected to both ends of the inner wall of the crushing roller 13, the outer wall of the grinding roller 13 is connected on the upper surface of the filter plate 15, the bottom end of the filter plate 15 is fixedly connected at the output end of the vibration motor 16, one side of the vibration motor 16 is fixedly connected on the inner wall of the grinding box 7, the driving motor 2 is started to drive the rotating shaft 3 to rotate, so that the rotating shaft 3 drives the grinding roller 4 to rotate, as the grinding roller 4 is meshed with the fixed roller 5, preliminary grinding can be carried out on the coal briquette, then the upper discharge hopper 6 enters the grinding box 7, the double-end motor 14 is started to drive the connecting rod 12 to rotate, so that the gear 11 moves on the rack 10, and further the grinding roller 13 is driven to finely grind the coal briquette on the filter plate 15, the vibration motor 16 is started to vibrate the filter plate 15, so that the coal briquette smaller than 15 meshes can quickly fall down, the coal briquette larger than 15 meshes can be continuously ground until the coal briquette is smaller than 15 meshes of the filter plate, thereby improving the efficiency of coal block grinding and solving the problem of uneven grinding of the coal block.

One side of the upper surface of the crushing box 7 is fixedly connected with a collecting box 17, the top end of the threo fox collecting box 17 is fixedly connected with an air outlet pipe 18, the bottom end of the air outlet pipe 18 penetrates through the top end of the collecting box 17 and extends to the inside, the top end of the air outlet pipe 18 is fixedly connected with the output end of a fan 19, the input end of the fan 19 is fixedly connected with an air inlet pipe 20, the top end of the air inlet pipe 20 is fixedly connected with a hose 21, the top end of the hose 21 is fixedly connected with a connecting pipe 22, the top end of the connecting pipe 22 is fixedly connected with a dust suction head 23, both ends of the bottom of the dust suction head 23 are fixedly connected with clamping blocks 24, the outer walls of the clamping blocks 24 are slidably connected with the outer walls of clamping grooves 25, the clamping grooves 25 are arranged on one side of the upper surface of the crushing tank 1, and the dust suction head 23 corresponds to a feeding port 26, feed inlet 26 is seted up in upper surface one side of broken jar 1, the outer wall middle part fixedly connected with support frame 27 of broken jar 1, the bottom fixed connection of support frame 27 is at the upper surface that pulverizes case 7, pulverize the equal fixedly connected with in bottom middle part fixedly connected with of case 7 and go out hopper 8 down, pulverize the equal fixedly connected with supporting leg 28 in bottom four corners of case 7, when carrying out crushing processing to the coal cinder, showy granule can appear, through covering dust absorption head 23 on feed inlet 26, make fixture block 24 block go into in the draw-in groove 25, thereby make dust absorption head 23 fix on feed inlet 26, then start fan 19, make air-supply line 20 carry out the dust absorption, thereby make the internal upwards floating granule of jar pass through dust absorption head 23 in hose 21 follow air-out pipe 18 row collecting box 17, thereby carry out centralized processing.

The working principle is as follows: when the device is needed to be used, the coal is thrown into the crushing tank 1 from the feed port 26, the driving motor 2 is started to drive the rotating shaft 3 to rotate, so that the rotating shaft 3 drives the crushing roller 4 to rotate, the crushing roller 4 is meshed with the fixed roller 5, so that the coal can be primarily crushed, then the coal enters the crushing tank 7 from the upper discharge hopper 6, the double-head motor 14 is started to drive the connecting rod 12 to rotate, so that the gear 11 moves on the rack 10, the crushing roller 13 is further driven to finely crush the coal on the filter plate 15, the vibrating motor 16 is started to vibrate the filter plate 15, so that the coal which is smaller than 15 holes of the filter plate falls down quickly, the coal which is larger than 15 holes of the filter plate continues to be crushed until the coal is smaller than 15 holes of the filter plate, so that the efficiency of grinding the coal is improved, the problem of uneven grinding of the coal is solved, the coal can be crushed, particles can appear, the dust collection head 23 is covered on the feed port 26, the clamping block 24 is clamped into the clamping groove 25, so that the dust collection head 23 is fixed on the feed port 26, and then the fan 19 is started, so that the floating particles in the dust collection tank 20 can float to the dust collection tank from the dust collection tank through the dust collection hose 21, and then the dust collection tank, and the dust collection hose 17.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a power plant boiler coal grinding equipment, includes crushing jar (1), its characterized in that: the top end of the crushing tank (1) is fixedly connected with a driving motor (2), the output end of the driving motor (2) is fixedly connected with a rotating shaft (3), the outer wall of the rotating shaft (3) is fixedly connected with a crushing roller (4), the inner wall of the crushing tank (1) is fixedly connected with a fixing roller (5), the fixing roller (5) is meshed with the crushing roller (4), the bottom end of the crushing tank (1) is fixedly connected with an upper discharging hopper (6), the bottom end of the upper discharging hopper (6) is fixedly connected with the top end of a crushing box (7), grooves (9) are formed in the two sides of the inner wall of the crushing box (7), a rack (10) is fixedly connected with one side of each groove (9), the rack (10) is meshed with a gear (11), one side of the gear (11) is fixedly connected with one end of a connecting rod (12), one end of the connecting rod (12) is fixedly connected with the output end of a double-head motor (14), one side of the double-head motor (14) is fixedly connected with the middle part of the inner wall of a crushing roller (13), the outer wall of the connecting rod (12) is connected with the output end of a filtering plate (15) which is connected with the outer wall of the grinding roller (13), and the upper end of the filtering plate (15) is connected with the upper end of the filtering plate (15) of the grinding roller (15), one side of the vibration motor (16) is fixedly connected with the inner wall of the grinding box (7).

2. The power plant boiler coal grinding apparatus of claim 1, wherein: one side of the upper surface of the crushing box (7) is fixedly connected with a collecting box (17), the top end of the threo fox collecting box (17) is fixedly connected with an air outlet pipe (18), the bottom end of the air outlet pipe (18) penetrates through the top end of the collecting box (17) and extends to the inside, the top end of the air outlet pipe (18) is fixedly connected with the output end of a fan (19), and the input end of the fan (19) is fixedly connected with an air inlet pipe (20).

3. The power plant boiler coal grinding apparatus of claim 2, wherein: the top fixedly connected with hose (21) of air-supply line (20), the top fixedly connected with connecting pipe (22) of hose (21), the top fixedly connected with dust absorption head (23) of connecting pipe (22).

4. The power plant boiler coal grinding equipment according to claim 3, wherein: the equal fixedly connected with fixture block (24) in bottom both ends of dust absorption head (23), the outer wall sliding connection of fixture block (24) is in the outer wall of draw-in groove (25), draw-in groove (25) are seted up in upper surface one side of broken jar (1).

5. The power plant boiler coal grinding apparatus of claim 3, wherein: the dust collection head (23) corresponds to the feed inlet (26), and the feed inlet (26) is formed in one side of the upper surface of the crushing tank (1).

6. The power plant boiler coal grinding apparatus of claim 1, wherein: the crushing tank is characterized in that a support frame (27) is fixedly connected to the middle of the outer wall of the crushing tank (1), and the bottom end of the support frame (27) is fixedly connected to the upper surface of the crushing box (7).

7. The power plant boiler coal grinding apparatus of claim 1, wherein: the bottom middle part of the crushing box (7) is fixedly connected with a lower discharge hopper (8), and four corners of the bottom end of the crushing box (7) are fixedly connected with supporting legs (28).