CN220277143U - Medium speed pulverizer draws out force device convenient to maintain - Google Patents
Medium speed pulverizer draws out force device convenient to maintain Download PDFInfo
- Publication number
- CN220277143U CN220277143U CN202321808118.8U CN202321808118U CN220277143U CN 220277143 U CN220277143 U CN 220277143U CN 202321808118 U CN202321808118 U CN 202321808118U CN 220277143 U CN220277143 U CN 220277143U
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- medium
- speed coal
- ring
- mill
- grinding
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- 239000003245 coal Substances 0.000 claims abstract description 69
- 238000000605 extraction Methods 0.000 claims abstract description 11
- 239000002817 coal dust Substances 0.000 claims abstract description 6
- 238000007664 blowing Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000008602 contraction Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The utility model relates to the technical field of coal mills, in particular to a medium-speed coal mill extraction force device convenient to maintain, which comprises a medium-speed coal mill for grinding coal dust; the grinding disc is rotatably arranged in the medium-speed coal mill; the air inlet is arranged on the right side of the medium-speed coal mill; the wind collecting assembly is fixedly arranged in the medium-speed coal mill and is positioned at the lower side of the grinding disc. According to the utility model, the hot air entering the medium-speed coal mill is intensively blown through the air pipe and the nozzle, so that the air force contraction can be intensively blown on the lower side of the blades of the annular sleeve, the maximization of the concentrated blowing of the hot air to the annular sleeve and the blades is improved, the dissipation in the hot air flowing process is reduced, the hot air entering the medium-speed coal mill is pressurized through the rotation of the annular sleeve and the blades, the maximum force of the hot air is blown upwards, and the pulverized coal after grinding is discharged.
Description
Technical Field
The utility model relates to the technical field of coal mills, in particular to a medium-speed coal mill extraction force device convenient to maintain.
Background
The working principle of the existing coal mill is that a grinding disc is driven to rotate by a speed reducer, materials fall at the center of the grinding disc from a feed inlet through a wind locking feeder, and meanwhile hot air enters the mill from an air inlet. Along with the rotation of the millstone, the materials move towards the edge of the millstone under the action of centrifugal force, the materials are crushed by the grinding roller when passing through the annular groove on the millstone, the crushed materials are carried up by the high-speed airflow of the air ring at the edge of the millstone, large particles directly fall onto the millstone for re-grinding, when the materials in the airflow pass through the upper separator, under the action of the rotating rotor, coarse powder falls onto the millstone from the cone hopper for re-grinding, qualified fine powder is taken out of the millstone along with the airflow, and the qualified fine powder is collected by the dust collecting device, thus obtaining the product. In the grinding process, the materials containing moisture are dried in the contact process with hot air flow, the requirements of materials with different humidity can be met by adjusting the temperature of hot air, the required product moisture is achieved, however, when the pulverized coal is discharged, the pulverized coal after grinding is discharged through wind power, but the wind power is easy to escape when entering a coal mill, the pulverized coal is not intensively blown up, and the output of the coal mill is reduced.
Disclosure of Invention
The utility model aims to provide a medium-speed coal mill extraction force device convenient to maintain, which is used for solving the problems that during coal powder discharging, coal powder after grinding is discharged through wind power, but wind power is easy to escape when entering a coal mill, coal powder is not intensively blown up, and the force of the coal mill is reduced.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the extraction force device of the medium speed coal mill convenient to maintain comprises the medium speed coal mill for grinding coal dust;
the grinding disc is rotatably arranged in the medium-speed coal mill;
the air inlet is arranged on the right side of the medium-speed coal mill;
the air collecting assembly is fixedly arranged in the medium-speed coal mill, is positioned at the lower side of the millstone and is used for providing a discharging effect for pulverized coal blowing after the medium-speed coal mill grinds the pulverized coal;
the output assembly is movably arranged on the grinding disc and is attached to the outer wall of the upper end of the grinding disc.
Preferably, the wind collecting assembly comprises an air pipe and a plurality of groups of nozzles, the air pipe is movably arranged in the medium-speed coal mill, the air pipe is positioned at the lower side of the grinding disc, the plurality of groups of nozzles are fixedly arranged on the air pipe, the openings of the nozzles are upward, a plurality of groups of mounting rings are movably sleeved on the air pipe, and the plurality of groups of mounting rings are fixedly connected with the inner wall of the medium-speed coal mill.
Preferably, the output assembly comprises a bottom ring, a ring sleeve and a plurality of groups of blades, the bottom ring is fixedly arranged on the outer wall of the lower end of the grinding disc, the ring sleeve is sleeved on the outer wall of the upper end of the grinding disc, the plurality of groups of blades are fixedly arranged on the outer surface of the ring sleeve, the plurality of groups of blades and the ring sleeve are integrally formed, the ring sleeve and the lower side of the grinding disc are all provided with a plurality of groups of through holes in a ring shape, the upper side of the grinding disc is movably provided with a grinding plate, the lower side of the grinding plate is provided with a plurality of groups of bolts in a ring shape, and the bolts are movably inserted in the through holes in a plurality of groups, and nuts are sleeved on the lower ends of the bolts through threads.
Preferably, a filter ring is fixedly arranged at the upper end of the grinding plate, and the filter ring is positioned at the upper ends of the ring sleeve and the blades.
Preferably, a plurality of groups of blades are obliquely arranged on the ring sleeve, and the plurality of groups of blades and the ring sleeve are integrally formed.
Preferably, the bottom ring on the lower end of the grinding disc is consistent with the diameters of the ring sleeve and the grinding plate, and the grinding plate and the bottom ring on the lower end of the grinding disc are attached to the upper side and the lower side of the ring sleeve.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the hot air entering the medium-speed coal mill is intensively blown through the air pipe and the nozzle, so that the air force contraction can be intensively blown on the lower side of the blades of the annular sleeve, the maximization of the concentrated blowing of the hot air to the annular sleeve and the blades is improved, the dissipation in the hot air flowing process is reduced, the hot air entering the medium-speed coal mill is pressurized through the rotation of the annular sleeve and the blades, the maximum force of the hot air is blown upwards, and the pulverized coal after grinding is discharged.
Description of the drawings:
in order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic elevational view of the structure of the present utility model;
FIG. 2 is a schematic diagram of the front view of the structure of the present utility model;
FIG. 3 is a schematic cross-sectional elevation view of the structure of the present utility model;
fig. 4 is an enlarged partial schematic view of fig. 3 a according to the present utility model.
In the figure: 1. a medium speed coal mill; 2. an air inlet; 3. an air duct; 4. a nozzle; 5. a mounting ring; 6. grinding disc; 7. a bottom ring; 8. a ring sleeve; 9. a blade; 10. a through hole; 11. a grinding plate; 12. a bolt; 13. a screw cap; 14. a filter ring.
The specific embodiment is as follows:
the following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, an embodiment of the present utility model is provided: the extraction force device of the medium speed coal mill convenient to maintain comprises a medium speed coal mill 1 for grinding coal dust;
the grinding disc 6, the rotation of the grinding disc 6 is installed in the medium-speed coal mill 1;
the air inlet 2 is arranged on the right side of the medium-speed coal mill 1;
the air collecting assembly is fixedly arranged in the medium-speed coal mill 1, is positioned at the lower side of the millstone 6 and is used for providing a discharging effect for coal dust blowing after the medium-speed coal mill 1 grinds the coal dust;
the device comprises an output assembly, wherein the output assembly is movably arranged on a millstone 6, and is attached to the outer wall of the upper end of the millstone 6;
further, receive wind subassembly includes tuber pipe 3 and multiunit nozzle 4, tuber pipe 3 movable mounting is in medium speed coal pulverizer 1, tuber pipe 3 is in the downside of mill 6, multiunit nozzle 4 fixed mounting is on tuber pipe 3, nozzle 4's opening is upwards, multiunit collar 5 has been cup jointed in the activity on the tuber pipe 3, multiunit collar 5 and medium speed coal pulverizer 1's inner wall fixed connection, this structure is through tuber pipe 3 and nozzle 4 to hot-blast concentrated flow blow in medium speed coal pulverizer 1 in, the buggy of grinding in the medium speed coal pulverizer 1 blows.
Further, the output assembly comprises a bottom ring 7, a ring sleeve 8 and a plurality of groups of blades 9, wherein the bottom ring 7 is fixedly arranged on the outer wall of the lower end of the grinding disc 6, the ring sleeve 8 is sleeved on the outer wall of the upper end of the grinding disc 6, the plurality of groups of blades 9 are fixedly arranged on the outer surface of the ring sleeve 8, the plurality of groups of blades 9 and the ring sleeve 8 are integrally formed, a plurality of groups of through holes 10 are formed in the lower sides of the ring sleeve 8 and the grinding disc 6 in a ring mode, a grinding plate 11 is movably arranged on the upper side of the grinding disc 6, the lower side of the grinding plate 11 is annularly arranged on a plurality of groups of bolts 12, the plurality of groups of bolts 12 are movably inserted in the through holes 10, nuts 13 are sleeved on the lower ends of the plurality of bolts 12 through threads, the ring sleeve 8 and the blades 9 are fixed on the grinding disc 6 through the grinding plate 11, the rotating of the grinding disc 6 drives the ring sleeve 8 and the blades 9 to rotate to boost hot air, and accordingly the maximized utilization of the hot air is improved, the ring sleeve 8 and the blades 9 can be replaced, and the maintenance of the ring sleeve 8 and the blades 9 is facilitated.
Further, the upper end fixed mounting filter ring 14 of lapping plate 11, filter ring 14 are in the upper end of ring cover 8 and blade 9, and this structure filters through the filter ring 14 on lapping plate 11 and shelters from the buggy that blows through the hot-blast of ring cover 8 and blade 9 pressure boost, avoids too big coal cinder to blow.
Further, the plurality of groups of blades 9 are installed on the annular sleeve 8 in an inclined mode, the plurality of groups of blades 9 and the annular sleeve 8 are integrally formed, and the structure enables the annular sleeve 8 to drive the blades 9 to rotate to blow hot air upwards according to the shape of the blades 9 on the annular sleeve 8.
Further, the bottom ring 7 on the lower end of the grinding disc 6 is consistent with the diameters of the annular sleeve 8 and the grinding plate 11, the grinding plate 11 and the bottom ring 7 on the lower end of the grinding disc 6 are attached to the upper side and the lower side of the annular sleeve 8, the structure is installed between the grinding disc 6 and the grinding plate 11 through the annular sleeve 8, and the annular sleeve 8 is prevented from being separated upwards under the rotation action of the grinding disc 6 after being installed on the grinding disc 6.
Working principle: when the coal mine is ground, as shown in fig. 2 and 4, the ring sleeve 8 is sleeved at the upper end of the grinding disc 6, the ring sleeve 8 and the blades 9 are sleeved at the upper end of the grinding disc 6, then the lower side of the ring sleeve 8 is attached to the upper side of the bottom ring 7, the grinding plate 11 is inserted into the through holes 10 of the ring sleeve 8 and the lower end of the grinding disc 6 through the bolts 12, after the bolts 12 are inserted into the through holes 10, the grinding plate 11 is attached to the upper side of the ring sleeve 8, the nuts 13 are rotatably arranged at the lower ends of the bolts 12, the grinding plate 11 and the bolts 12 are fixed on the grinding disc 6, the ring sleeve 8 and the blades 9 can be fixed between the bottom ring 7 and the grinding plate 11, when external hot air enters the medium-speed coal mill 1, the hot air entering from the air inlet 2 is concentrated in through the air pipe 3, then the hot air flowing in the air pipe 3 is sprayed into the blades 9 through the nozzles 4, then the hot air is rotatably driven by the grinding disc 6 to rotate the ring sleeve 8 and the blades 9, the hot air is pressurized, the hot air is downwards blown up after the blades 9 are rotatably pressurized, the coal mine is shielded after the grinding, and the coal mine is completely filtered through the ring 14, and the coal mine is greatly filtered, and the coal mine is prevented from being blown out.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A medium speed coal pulverizer extraction force device convenient to maintain, comprising: a medium speed coal mill (1) for coal dust grinding;
the grinding disc (6) is rotatably arranged in the medium-speed coal mill (1);
the method is characterized in that:
the air inlet (2) is formed in the right side of the medium-speed coal mill (1);
the air collecting assembly is fixedly arranged in the medium-speed coal mill (1), is positioned at the lower side of the millstone (6), and is used for providing a discharging effect on pulverized coal blowing after the medium-speed coal mill (1) grinds the pulverized coal;
the output assembly is movably arranged on the grinding disc (6), and is attached to the outer wall of the upper end of the grinding disc (6).
2. The easy maintenance medium speed coal pulverizer extraction force device of claim 1, wherein: the wind collecting assembly comprises an air pipe (3) and a plurality of groups of nozzles (4), wherein the air pipe (3) is movably installed in a medium-speed coal mill (1), the air pipe (3) is located at the lower side of a grinding disc (6), the nozzles (4) are fixedly installed on the air pipe (3), the openings of the nozzles (4) are upward, a plurality of groups of mounting rings (5) are movably sleeved on the air pipe (3), and the mounting rings (5) are fixedly connected with the inner wall of the medium-speed coal mill (1).
3. The easy maintenance medium speed coal pulverizer extraction force device of claim 1, wherein: the utility model provides a grinding disc, including grinding disc (6), including the subassembly that outputs, including end ring (7), ring cover (8) and multiunit blade (9), end ring (7) fixed mounting is on the lower extreme outer wall of mill (6), ring cover (8) cup joint on the upper end outer wall of mill (6), multiunit blade (9) fixed mounting is on the outward appearance of ring cover (8), multiunit blade (9) and ring cover (8) are integrated into one piece, multiunit through-hole (10) are all offered to the ring on the downside of ring cover (8) and mill (6), the upside movable mounting of mill (6) has lapping plate (11), the annular sets up in multiunit bolt (12) on the downside of lapping plate (11), multiunit bolt (12) movable insertion is established in through-hole (10), and all cup joint nut (13) through the screw thread on the lower extreme of multiunit bolt (12).
4. The medium speed coal pulverizer extraction force device of convenient to maintain of claim 3, wherein: the upper end of the grinding plate (11) is fixedly provided with a filter ring (14), and the filter ring (14) is positioned at the upper ends of the ring sleeve (8) and the blades (9).
5. The medium speed coal pulverizer extraction force device of convenient to maintain of claim 3, wherein: the plurality of groups of blades (9) are obliquely arranged on the annular sleeve (8), and the plurality of groups of blades (9) and the annular sleeve (8) are integrally formed.
6. The medium speed coal pulverizer extraction force device of convenient to maintain of claim 3, wherein: the diameter of a bottom ring (7) on the lower end of the grinding disc (6) is consistent with that of the annular sleeve (8) and that of the grinding plate (11), and the bottom rings (7) on the lower end of the grinding plate (11) and the lower end of the grinding disc (6) are attached to the upper side and the lower side of the annular sleeve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321808118.8U CN220277143U (en) | 2023-07-11 | 2023-07-11 | Medium speed pulverizer draws out force device convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321808118.8U CN220277143U (en) | 2023-07-11 | 2023-07-11 | Medium speed pulverizer draws out force device convenient to maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220277143U true CN220277143U (en) | 2024-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321808118.8U Active CN220277143U (en) | 2023-07-11 | 2023-07-11 | Medium speed pulverizer draws out force device convenient to maintain |
Country Status (1)
| Country | Link |
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| CN (1) | CN220277143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118304969A (en) * | 2024-06-07 | 2024-07-09 | 杭州博越自动化工程有限公司 | Internal flow field distribution optimization system and method for coal mill based on supercharging regulation and control |
-
2023
- 2023-07-11 CN CN202321808118.8U patent/CN220277143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118304969A (en) * | 2024-06-07 | 2024-07-09 | 杭州博越自动化工程有限公司 | Internal flow field distribution optimization system and method for coal mill based on supercharging regulation and control |
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