CN217699415U - Coal grinding device for thermal power generation - Google Patents
Coal grinding device for thermal power generation Download PDFInfo
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- CN217699415U CN217699415U CN202221160907.0U CN202221160907U CN217699415U CN 217699415 U CN217699415 U CN 217699415U CN 202221160907 U CN202221160907 U CN 202221160907U CN 217699415 U CN217699415 U CN 217699415U
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- Prior art keywords
- coal
- grinding
- air pump
- thermal power
- exhaust tube
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- 238000000227 grinding Methods 0.000 title claims abstract description 101
- 239000003245 coal Substances 0.000 title claims abstract description 99
- 238000010248 power generation Methods 0.000 title claims description 11
- 239000000463 material Substances 0.000 claims abstract description 21
- 235000004237 Crocus Nutrition 0.000 claims abstract description 6
- 241000596148 Crocus Species 0.000 claims abstract description 6
- 239000012634 fragment Substances 0.000 claims description 11
- 230000006835 compression Effects 0.000 abstract description 21
- 238000007906 compression Methods 0.000 abstract description 21
- 239000003818 cinder Substances 0.000 abstract description 11
- 238000000926 separation method Methods 0.000 abstract description 5
- 239000002817 coal dust Substances 0.000 description 16
- 239000002245 particle Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model discloses a coal grinding device for thermal power relates to the coal pulverizer field, including the coal grinding jar, the coal grinding jar inner wall is provided with a set of frame that gathers materials, and coal grinding jar internally mounted have with frame complex crocus mechanism that gathers materials, compressed air pump is all installed to coal grinding jar both sides. The utility model discloses an all install compression air pump in coal grinding tank both sides, connect the other end and be connected and the exhaust tube of high difference with coal grinding tank at two compression air pump inputs, connect the side pipe in exhaust tube one side, and be located the side pipe and set up the filter screen below the exhaust tube junction inside the exhaust tube, crocus mechanism is with the coal cinder grinding back, compression air pump blows the buggy to aloft, the pulverized coal separation of different thickness is taken out by the exhaust tube that is located not co-altitude, the buggy passes through the separation of filter screen and gets into the buggy collecting box from the side pipe, the air gets into in the coal grinding tank through the compression air pump after once more, and it is more convenient to use, and work efficiency is higher.
Description
Technical Field
The utility model relates to a coal pulverizer field specifically is a coal grinding device for thermal power.
Background
Coal mills are machines for breaking up and grinding coal briquettes into coal dust, which are important auxiliary equipment for coal dust furnaces. The grinding machine comprises a vertical type flour mill, a high-pressure suspension roller mill, a medium-speed micro-powder mill, an overpressure trapezoidal mill, a Raymond mill and the like.
The conventional coal grinding device for thermal power generation generally grinds coal briquettes by a grinding mechanism and then separates coal dust from coal briquette particles which are not completely ground by a screen.
But the screen mesh screens the coal dust and the coal particles, the screening efficiency is slow because the speed of the coal dust passing through the screen mesh is slow, and the edges and corners of the coal particles can block the mesh holes of the screen mesh, so that the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at providing a coal grinding device for thermal power to it is slower to solve current coal grinding device for thermal power efficiency, awkward technical problem.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a coal grinding device for thermal power, includes the coal grinding jar, the coal grinding jar inner wall is provided with a set of frame that gathers materials, and coal grinding jar internally mounted have with frame complex crocus mechanism that gathers materials, the compression air pump is all installed to coal grinding jar both sides, and two compression air pump outputs all are connected with the outlet duct of being connected with two frames that gather materials respectively, two the compression air pump output all is connected with the exhaust tube of being connected with the coal grinding jar, and the difference in height that two exhaust tubes and coal grinding jar are connected, two exhaust tube one side all is connected with the side pipe, and the intraductal side pipe below that is located of exhaust tube all is provided with the filter screen.
Through adopting above-mentioned technical scheme, the milling mechanism will be ground the coal cinder back, and the compression air pump will be ground likepowder coal through the outlet duct and blow to in the air, and granular coal falls into in the outlet duct through the collection frame, and the not pulverized coal of the same granule size in the air is blown in the suction tube absorption of compression air pump accessible difference height simultaneously, makes the pulverized coal get into the side pipe through the filter screen, and the air admission compression air pump.
The utility model discloses further set up to, milling mechanism is the grinding fragment that motor, motor output are connected, grind the grinding ring gear that sets up on the fragment and a plurality of coal grinding jar inner wall connection and with the grinding gear of grinding ring gear meshing, and the grinding piece closely laminates with two frames that gather materials.
Through adopting above-mentioned technical scheme, the motor control grinding piece rotates, and the grinding piece is accessible grinding ring gear drive grinding gear rotation promptly, and the coal cinder can be ground when the juncture through grinding gear and grinding piece, and grinding piece and the close laminating of frame that gathers materials can prevent that buggy etc. from falling to damage the motor on the motor.
The utility model discloses further set up to, the minimum punishment department of outlet duct all is connected with the debris collecting box, the side pipe exit end all is connected with the buggy collecting box.
By adopting the technical scheme, the sundries collecting box can collect coal blocks which are not ground into powder, and the coal dust collecting box can collect coal dust.
The utility model discloses further set up to, debris collecting box top surface all is provided with the first slide rail with outlet duct sliding connection, side pipe exit end both sides all are provided with the second slide rail with buggy collecting box sliding connection.
Through adopting above-mentioned technical scheme, debris collecting box accessible first slide rail and outlet duct sealing connection, side pipe accessible second slide rail and buggy collecting box sealing connection prevent that compression air pump during operation from leaking gas.
The utility model discloses further set up to, be provided with into the hopper in the middle of the coal grinding tank top surface, and go into hopper bottom surface exit end and be connected with the pan feeding pipe that extends to grind fragment top.
Through adopting above-mentioned technical scheme, going into the hopper and can holding the coal cinder, the pan feeding pipe can lead the coal cinder to the grinding piece top, prevents that the coal cinder from dropping highly too high and leading to splashing.
The utility model discloses further set up to, grinding piece top surface intermediate junction has the mediation post that is located pan feeding intraduct, and mediation post outer wall connection has a plurality of mediation pieces that are the heliciform and arrange, go into inside being provided with of hopper and mediation post complex support.
Through adopting above-mentioned technical scheme, the grinding piece rotates with the mediation piece through transferring the mediation post, can prevent that the coal cinder from supporting each other in pan feeding pipe inside and leading to blocking, and the support can carry on spacingly to the mediation post.
The utility model discloses further set up to, filter screen top surface and the inside bottom surface of side pipe are located the coplanar.
By adopting the technical scheme, the filter screen and the side pipe are positioned on the same plane, so that pulverized coal can better enter the side pipe, and the pulverized coal is prevented from being accumulated at the filter screen.
The utility model discloses it is further set up to, two the combination of collection frame is just circular.
Through adopting above-mentioned technical scheme, the aggregate frame combination is just circular, and the parcel that can be better grinds the fragment, prevents to produce the space.
The utility model discloses further set up to, the diameter of exhaust tube is greater than the diameter of outlet duct.
Through adopting above-mentioned technical scheme, the diameter of exhaust tube is greater than the diameter of outlet duct, can make the compressed air pump flow velocity when blowing faster, better with buggy and coal cinder separation.
To sum up, the utility model discloses mainly have following beneficial effect:
the utility model discloses an all install compression air pump in coal grinding tank both sides, connect the other end and be connected and the exhaust tube of high difference with coal grinding tank at two compression air pump inputs, connect the side tube in exhaust tube one side, and it sets up the filter screen to be located side tube and exhaust tube junction below inside the exhaust tube, crocus mechanism is with the coal cinder grinding back, compression air pump blows the buggy to aloft, the buggy separation of different thicknesses is taken out by the exhaust tube that is located not co-altitude, the buggy passes through the separation of filter screen and gets into the buggy collecting box from the side tube, the air gets into in the coal grinding tank after passing through compression air pump once more, high convenience is used, and the work efficiency is higher.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of A in FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of B in FIG. 2 according to the present invention;
fig. 5 is an enlarged view of C in fig. 2 according to the present invention.
In the figure: 1. a coal grinding tank; 2. feeding into a hopper; 3. a feeding pipe; 4. a motor; 5. grinding the fragments; 6. grinding the toothed ring; 7. grinding the gear; 8. compressing the air pump; 9. an air outlet pipe; 10. a material collecting frame; 11. a sundries collecting box; 12. an air exhaust pipe; 13. a side tube; 14. a filter screen; 15. a pulverized coal collecting box; 16. a first slide rail; 17. a second slide rail; 18. dredging the column; 19. dredging blocks; 20. a support; 21. and (3) supporting the ring.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
The following describes an embodiment of the present invention according to its overall structure.
The utility model provides a coal grinding device for thermal power generation, as shown in fig. 1-5, including coal grinding tank 1, coal grinding tank 1 inner wall is provided with a set of material collection frame 10, and coal grinding tank 1 internally mounted have with material collection frame 10 complex crocus mechanism, can be with the coal cinder grinding, coal grinding tank 1 both sides all install compression air pump 8, and two 8 output of compression air pump all are connected with the outlet duct 9 of being connected with two material collection frames 10 respectively, and outlet duct 9 minimum point department all is connected with debris collecting box 11, and compression air pump 8 blows the buggy aloft through outlet duct 9, and the coal cinder that is not ground falls into debris collecting box 11 through material collection frame 10 and outlet duct 9 in, two 8 output of compression air pump all is connected with exhaust tube 12 of being connected with coal grinding tank 1, and the height difference that two exhaust tube 12 and coal grinding tank 1 are connected, two exhaust tube 12 one side all are connected with side tube 13, and lie in the exhaust tube 12 and all be provided with filter screen 14 below side tube 13, the exit end of side tube 13 all is connected with buggy 15, and compression air pump 8 accessible high different size of air pump 12 gets into the filter screen through the air pump intake tube of the air intake particle.
Referring to fig. 2, the grinding mechanism includes a motor 4, a grinding block 5 connected to an output end of the motor 4, a grinding ring gear 6 provided on the grinding block 5, and a grinding gear 7 connected to an inner wall of the plurality of coal grinding tanks 1 and engaged with the grinding ring gear 6, the motor 4 controls the rotation of the grinding block 5, the grinding block 5 can drive the grinding gear 7 to rotate through the grinding ring gear 6, the coal block can be ground when passing through a junction between the grinding gear 7 and the grinding block 5, and the grinding block 5 is tightly attached to the two material collecting frames 10, so that the coal powder and the like can be prevented from falling on the motor 4 and damaging the motor 4.
Referring to fig. 2, the two collecting frames 10 are combined to form a regular circle, so as to better wrap the grinding block 5 and prevent a gap from being generated.
Referring to fig. 3 and 4, the top surface of the sundries collecting box 11 is provided with a first slide rail 16 slidably connected with the air outlet pipe 9, two sides of the outlet end of the side pipe 13 are provided with a second slide rail 17 slidably connected with the pulverized coal collecting box 15, the sundries collecting box 11 can be hermetically connected with the air outlet pipe 9 through the first slide rail 16, and the side pipe 13 can be hermetically connected with the pulverized coal collecting box 15 through the second slide rail 17 to prevent air leakage when the compression air pump 8 works.
Referring to fig. 2 and 5, a feeding hopper 2 is disposed in the middle of the top surface of the coal grinding tank 1 and can hold coal briquettes, and an outlet end of the bottom surface of the feeding hopper 2 is connected with a feeding pipe 3 extending above the ground coal briquettes 5 and can guide the coal briquettes above the ground coal briquettes 5 to prevent the coal briquettes from splashing due to too high falling height.
Referring to fig. 2 and 5, a dredging column 18 located inside the feeding pipe 3 is connected to the middle of the top surface of the grinding block 5, the outer wall of the dredging column 18 is connected with a plurality of dredging blocks 19 arranged in a spiral shape, the grinding block 5 can be prevented from being clamped due to mutual supporting of coal blocks inside the feeding pipe 3 by moving the dredging column 18 and the dredging block 19, a support 20 matched with the dredging column 18 is arranged inside the feeding hopper 2 and can limit the dredging column 18, and a support ring 21 rotationally connected with the grinding block 5 is arranged on the top surface of the motor 4, so that the grinding block 5 can rotate more stably.
Referring to fig. 3, the top surface of the filter screen 14 and the bottom surface of the inside of the side pipe 13 are located on the same plane, so that the pulverized coal can better enter the side pipe 13, and the pulverized coal is prevented from being accumulated at the filter screen 14.
Referring to fig. 1 and 2, the diameter of the air exhaust pipe 12 is larger than that of the air outlet pipe 9, so that the flow rate of the compressed air pump 8 is faster during air blowing, and the pulverized coal is better separated from the coal briquettes.
The utility model discloses a theory of operation does: when the coal dust collecting device is used, the motor 4 and the compressed air pump 8 are started, coal blocks are poured into the feeding hopper 2, the motor 4 drives the ground fragments 5 and the dredging column 18 to rotate, the ground fragments 5 drive the grinding gear 7 to rotate through the grinding toothed ring 6, when the dredging column 18 rotates, the feeding pipe 3 is dredged through the dredging block 19, the coal blocks fall onto the ground fragments 5, the coal blocks move outside the inclined plane of the ground fragments 5 and are ground through the junction of the grinding block 5 and the grinding gear 7, the coal dust flows into the material collecting frame 10 through each time the coal dust passes through the grinding gear 7, the air flow sprayed by the compressed air pump 8 flies to the upper portion of the coal dust collecting tank 1, the non-ground coal dust falls into the material collecting tank 11 through the air outlet pipe 9 to be ground again, the coal dust flying to the air does not fly to different heights due to particle sizes, the compressed air pump 8 can suck the coal dust with different particle sizes through the two air suction pipes 12, the coal dust is filtered by the filter screen 14 after entering the air suction pipe 12, and enters the coal dust collecting tank 15 through the side pipe 13, and the air is blown into the filter screen 1 again through the compressed air pump 8.
Although embodiments of the present invention have been shown and described, it is intended that the present embodiments be illustrative only and not limiting to the invention, and that the particular features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples, and that modifications, substitutions, variations, and the like, which are not inventive in light of the above teachings, may be made to the embodiments by those skilled in the art without departing from the principles and spirit of the present invention, but are to be construed as broadly as the following claims.
Claims (8)
1. The utility model provides a coal grinding device for thermal power, includes coal grinding tank (1), its characterized in that: grind coal jar (1) inner wall and be provided with a set of frame (10) of gathering materials, and grind coal jar (1) internally mounted have with frame (10) complex crocus mechanism of gathering materials, compress air pump (8) are all installed to grind coal jar (1) both sides, and two compress air pump (8) outputs all are connected with outlet duct (9) of being connected with two frame (10) of gathering materials respectively, two compress air pump (8) output all is connected with exhaust tube (12) of being connected with grind coal jar (1), and two exhaust tube (12) and the height of being connected of grind coal jar (1) are different, two exhaust tube (12) one side all is connected with side tube (13), and is located side tube (13) below in exhaust tube (12) and all is provided with filter screen (14).
2. The coal grinding device for thermal power generation according to claim 1, characterized in that: grinding mechanism is grinding block (5) that motor (4), motor (4) output are connected, grinding ring gear (6) and a plurality of grinding coal jar (1) inner wall connection seted up on grinding block (5) and grinding gear (7) with grinding ring gear (6) meshing, and grinding block (5) and two material collection frames (10) are closely laminated.
3. The coal grinding device for thermal power generation according to claim 1, characterized in that: the lowest point of the air outlet pipe (9) is connected with a sundry collecting box (11), and the outlet ends of the side pipes (13) are connected with a pulverized coal collecting box (15).
4. The coal grinding device for thermal power generation according to claim 3, characterized in that: the top surface of the sundries collecting box (11) is provided with a first sliding rail (16) which is connected with the air outlet pipe (9) in a sliding way, and the two sides of the outlet end of the side pipe (13) are provided with a second sliding rail (17) which is connected with the pulverized coal collecting box (15) in a sliding way.
5. The coal grinding device for thermal power generation according to claim 2, characterized in that: a feeding hopper (2) is arranged in the middle of the top surface of the coal grinding tank (1), and the outlet end of the bottom surface of the feeding hopper (2) is connected with a feeding pipe (3) extending to the upper part of the ground fragments (5).
6. The coal grinding device for thermal power generation according to claim 5, characterized in that: grind fragment (5) top surface intermediate junction have be located pan feeding pipe (3) inside mediation post (18), and mediation post (18) outer wall connection has a plurality of mediation pieces (19) that are the heliciform and arrange, go into hopper (2) inside be provided with mediation post (18) complex support (20).
7. The coal grinding device for thermal power generation according to claim 1, characterized in that: the top surface of the filter screen (14) and the bottom surface inside the side pipe (13) are positioned on the same plane.
8. The coal grinding device for thermal power generation according to claim 1, characterized in that: the two material collecting frames (10) are combined into a perfect circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221160907.0U CN217699415U (en) | 2022-05-16 | 2022-05-16 | Coal grinding device for thermal power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221160907.0U CN217699415U (en) | 2022-05-16 | 2022-05-16 | Coal grinding device for thermal power generation |
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| Publication Number | Publication Date |
|---|---|
| CN217699415U true CN217699415U (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221160907.0U Active CN217699415U (en) | 2022-05-16 | 2022-05-16 | Coal grinding device for thermal power generation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950647A (en) * | 2022-05-16 | 2022-08-30 | 华能国际电力股份有限公司营口电厂 | Coal grinding device for thermal power generation |
-
2022
- 2022-05-16 CN CN202221160907.0U patent/CN217699415U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950647A (en) * | 2022-05-16 | 2022-08-30 | 华能国际电力股份有限公司营口电厂 | Coal grinding device for thermal power generation |
| CN114950647B (en) * | 2022-05-16 | 2024-11-26 | 华能国际电力股份有限公司营口电厂 | A coal grinding device for thermal power generation |
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