CN112718221A - Axial separation type medium speed coal mill coarse powder separator - Google Patents
Axial separation type medium speed coal mill coarse powder separator Download PDFInfo
- Publication number
- CN112718221A CN112718221A CN202011501287.8A CN202011501287A CN112718221A CN 112718221 A CN112718221 A CN 112718221A CN 202011501287 A CN202011501287 A CN 202011501287A CN 112718221 A CN112718221 A CN 112718221A
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- China
- Prior art keywords
- powder
- medium speed
- separation type
- axial separation
- type medium
- Prior art date
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- Pending
Links
- 239000000843 powder Substances 0.000 title claims abstract description 61
- 239000003245 coal Substances 0.000 title claims abstract description 35
- 238000000926 separation method Methods 0.000 title claims abstract description 23
- 238000004140 cleaning Methods 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims description 13
- 239000006260 foam Substances 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 8
- 239000002817 coal dust Substances 0.000 abstract description 13
- 238000009825 accumulation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/24—Passing gas through crushing or disintegrating zone
- B02C23/32—Passing gas through crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C2015/002—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses an axial separation type medium speed coal mill coarse powder separator, which belongs to the technical field of coarse powder separators and comprises a coal dropping pipe, a powder returning inner cone and a working cylinder body, wherein the powder returning inner cone is arranged inside the working cylinder body; according to the invention, the dredging and anti-blocking component is arranged, so that coal dust accumulation caused by long-time use is prevented, the powder return efficiency is improved, the working quality is ensured, the working stability is ensured, the side wall cleaning component is arranged, the working quality is ensured, the cleaning convenience is improved, and the working cost is saved.
Description
Technical Field
The invention belongs to the technical field of coarse powder separators, and particularly relates to an axial separation type medium-speed coal mill coarse powder separator.
Background
The coarse powder separator and the working principle are as follows: the dust-containing gas enters the volute of the cyclone from the inlet to form a rotating airflow, dust particles are thrown to the wall of the cyclone due to large centrifugal force and fall into the cone along the wall because of different qualities of dust and gas, the gas of the clean body is discharged into the atmosphere through the exhaust pipe along the inner wall of the cyclone, the outlet of the ash bucket is connected with the airlock valve, and a rotary feeder or a single-layer and double-layer flap valve can be adopted.
The prior art has the following problems: in the middle speed coal pulverizer middlings that china patent application number is CN201922101413.X disclosed, it can't dredge the buggy in returning the powder awl when using, easily appear the condition of blockking up when a large amount of thick buggy fall into wherein, influences the service quality of separator, reduces work efficiency, and can't clear up the inner wall surface of work barrel when using, easily causes the material extravagant, increases use cost.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides an axial separation type medium speed coal mill coarse powder separator which has the characteristics of blockage prevention and cleaning of the side wall.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an axial separation type medium speed pulverizer middlings separator, includes the coal breakage pipe, returns interior awl and the work barrel of powder, the inside of work barrel is provided with back the powder in, the inside of returning the powder in is provided with the coal breakage pipe, the coal breakage pipe with return and be provided with the mediation between the powder in and prevent stifled subassembly, the mediation is prevented stifled subassembly and is included step motor, driven gear, puddler and drive belt, wherein, the surface of coal breakage pipe is provided with step motor, step motor's output is provided with driven gear, driven gear's bottom is provided with the puddler, driven gear's surface is provided with the drive belt.
Preferably, the surface of the coal dropping pipe is provided with a dust cover corresponding to the stepping motor.
Preferably, the bottom end surface of the stirring rod is provided with stirring blades at even intervals.
Preferably, the bottom of the working cylinder body is provided with an air door, the bottom of the inner part of the working cylinder body is provided with a grinding roller, and the upper end of the working cylinder body is symmetrically provided with powder outlet pipes.
Preferably, the upper end of the inside of the working cylinder body is symmetrically provided with axial separating devices corresponding to the powder returning inner cone.
Preferably, be provided with the lateral wall clearance subassembly between interior awl and the work barrel of returning the powder, the lateral wall clearance subassembly includes cleaning brush, cystosepiment and hinge, wherein, the surperficial symmetry of the interior awl of returning the powder is provided with the hinge, one side of hinge is provided with the cystosepiment, one side of cystosepiment is provided with cleaning brush.
Preferably, the cleaning brush is connected with the foam board through a limiting spring.
Preferably, the surface of the powder returning inner cone is provided with a limiting block corresponding to the bottom end of the foam board.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the dredging and anti-blocking component is arranged, and the stepping motor drives the stirring rod and the stirring sheet to rotate to dredge the coal dust in the powder return inner cone, so that the coal dust accumulation caused by long-time use is prevented, the powder return efficiency is improved, the working quality is ensured, the separation quality of coarse powder and fine powder is ensured, the dredging difficulty is reduced, and the working stability is ensured.
2. According to the invention, by arranging the side wall cleaning assembly, the foam board drives the cleaning brush to slide along the inner wall of the working cylinder under the action of wind power, so that coal dust attached to the surface of the inner wall can be scraped, the working quality is ensured, the cleaning convenience is improved, and the working cost is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the dredging and anti-blocking component of the present invention;
FIG. 3 is a top view of the structure of the dredging and anti-blocking component of the invention;
FIG. 4 is a schematic view of a sidewall cleaning assembly according to the present invention;
FIG. 5 is a top view of the sidewall cleaning assembly of the present invention.
In the figure: 1. a powder outlet pipe; 2. a coal dropping pipe; 3. an axial separation device; 4. dredging and anti-blocking components; 41. a dust cover; 42. a stepping motor; 43. a driven gear; 44. a stirring rod; 45. stirring blades; 46. a transmission belt; 5. returning powder to an inner cone; 6. a sidewall cleaning assembly; 61. cleaning the brush; 62. a limiting spring; 63. a foam board; 64. a hinge; 65. a limiting block; 7. a working cylinder; 8. grinding the roller; 9. a damper.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides the following technical solutions: the utility model provides an axial separation type medium speed coal pulverizer middlings separator, including coal breakage pipe 2, return interior 5 of powder and work barrel 7, the inside of work barrel 7 is provided with back interior 5 of powder, the inside of returning interior 5 of powder is provided with coal breakage pipe 2, be provided with the mediation between coal breakage pipe 2 and the interior 5 of powder and prevent stifled subassembly 4, the mediation prevents stifled subassembly 4 and includes step motor 42, driven gear 43, puddler 44 and drive belt 46, wherein, the surface of coal breakage pipe 2 is provided with step motor 42, step motor 42's output is provided with driven gear 43, driven gear 43's bottom is provided with puddler 44, driven gear 43's surface is provided with drive belt 46, it is rotatory to drive driven gear 43 by step motor 42, make puddler 44 rotate and dredge the inside buggy in the powder returns, prevent that the buggy from blockking up, separation efficiency is improved, guarantee work quality.
Specifically, the dust cover 41 is disposed on the surface of the coal dropping pipe 2 corresponding to the stepping motor 42.
Through adopting above-mentioned technical scheme, be provided with dust cover 41 and protect step motor 42, improve equipment's life reduces the probability of damaging.
Specifically, the bottom end surface of the stirring rod 44 is provided with stirring blades 45 at uniform intervals.
Through adopting above-mentioned technical scheme, be provided with stirring leaf 45 auxiliary mixing, improve working effect, guarantee the mediation efficiency.
Specifically, the bottom end of the working cylinder 7 is provided with an air door 9, the bottom end inside the working cylinder 7 is provided with a grinding roller 8, and the upper end of the working cylinder 7 is symmetrically provided with the powder outlet pipes 1.
By adopting the technical scheme, pulverized coal falling from the coal dropping pipe 2 is ground by the grinding roller 8, and then the pulverized coal flies up by the air blown out from the air door 9 to separate coarse powder from fine powder, so that the working quality is ensured.
Specifically, the axial separating devices 3 are symmetrically arranged at the upper end inside the working cylinder 7 corresponding to the powder returning inner cone 5.
Through adopting above-mentioned technical scheme, sieve the buggy by axial separator 3, guarantee the separation effect, improve use quality.
Specifically, be provided with lateral wall clearance subassembly 6 between interior cone 5 of returning the powder and the work barrel 7, lateral wall clearance subassembly 6 includes cleaning brush 61, cystosepiment 63 and hinge 64, and wherein, the surperficial symmetry of interior cone 5 of returning the powder is provided with hinge 64, and one side of hinge 64 is provided with cystosepiment 63, and one side of cystosepiment 63 is provided with cleaning brush 61.
Through adopting above-mentioned technical scheme, at the in-process that air door 9 was bloied, cystosepiment 63 slides along hinge 64, drives clean brush 61 and removes along the inner wall surface of work barrel 7 when gliding, guarantees to clear up the buggy that adheres to on work barrel 7 surface, improves the result of use.
Specifically, the cleaning brush 61 and the foam plate 63 are connected by a limit spring 62.
Through adopting above-mentioned technical scheme, connect clean brush 61 and cystosepiment 63 through spacing spring 62, guarantee can ensure that clean brush 61 laminates at the inner wall surface of work barrel 7 when cystosepiment 63 removes, improve the clearance effect.
Specifically, the surface of the returned powder inner cone 5 is provided with a limiting block 65 corresponding to the bottom end of the foam plate 63.
Through adopting above-mentioned technical scheme, support cystosepiment 63 by stopper 65, prevent that it from causing the condition of flagging because of gravity, improve the convenience of using.
The structure and the use principle of the axial separation device 3, the flour returning inner cone 5, the grinding roller 8 and the air door 9 are disclosed in the coarse powder of a medium-speed coal mill adopting the axial separation device, which is disclosed in China patent application No. CN201922101413.
The working principle and the using process of the invention are as follows: when the coal dust recycling device is used, air blown out of the air door 9 drives coal dust to rise in the working cylinder 7, coarse coal dust particles fall back to the grinding roller 8 to be ground again under the action of gravity, fine coal dust is screened by the axial separation device 3 and then is discharged from the powder outlet pipe 1, the coal dust screened by the axial separation device 3 falls into the powder return inner cone 5, after the coal dust recycling device is used for a long time, the situation that the coal dust is accumulated in the powder return inner cone 5 is easy to occur, at the moment, the stepping motor 42 is started to drive the driven gear 43 and the transmission belt 46 to rotate, so that the stirring rod 44 and the stirring blade 45 rotate, the powder return inner cone 5 can be dredged, the powder return efficiency is improved, and the working quality is ensured;
in the process of blowing the coal dust to rise by wind power, the foam plate 63 is stressed to rotate along the hinge 64, the cleaning brush 61 slides along the surface of the inner wall of the working cylinder 7, the coal dust attached to the surface of the inner wall of the working cylinder 7 can be scraped, the working quality is improved, and the working cost is reduced.
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 (8)
1. The utility model provides an axial separation type medium speed pulverizer middlings separator, includes coal breakage pipe (2), returns interior cone (5) of powder and work barrel (7), its characterized in that: the inside of work barrel (7) is provided with back powder interior (5), the inside of returning powder interior (5) is provided with coal breakage pipe (2), coal breakage pipe (2) and return are provided with the mediation between powder interior (5) and prevent stifled subassembly (4), the mediation is prevented stifled subassembly (4) and is included step motor (42), driven gear (43), puddler (44) and drive belt (46), wherein, the surface of coal breakage pipe (2) is provided with step motor (42), the output of step motor (42) is provided with driven gear (43), the bottom of driven gear (43) is provided with puddler (44), the surface of driven gear (43) is provided with drive belt (46).
2. The axial separation type medium speed coal mill coarse powder separator according to claim 1, wherein: the surface of the coal dropping pipe (2) is provided with a dust cover (41) corresponding to the stepping motor (42).
3. The axial separation type medium speed coal mill coarse powder separator according to claim 1, wherein: and stirring blades (45) are uniformly arranged on the bottom end surface of the stirring rod (44) at intervals.
4. The axial separation type medium speed coal mill coarse powder separator according to claim 1, wherein: the bottom of the working cylinder body (7) is provided with an air door (9), the bottom of the inner part of the working cylinder body (7) is provided with a grinding roller (8), and the upper end of the working cylinder body (7) is symmetrically provided with a powder outlet pipe (1).
5. The axial separation type medium speed coal mill coarse powder separator according to claim 1, wherein: the upper end in the working cylinder body (7) is symmetrically provided with axial separating devices (3) corresponding to the powder returning inner cone (5).
6. The axial separation type medium speed coal mill coarse powder separator according to claim 1, wherein: it clears up subassembly (6) to return to be provided with between powder awl (5) and work barrel (7), lateral wall clearance subassembly (6) are including cleaning brush (61), cystosepiment (63) and hinge (64), wherein, the surperficial symmetry of returning powder awl (5) is provided with hinge (64), one side of hinge (64) is provided with cystosepiment (63), one side of cystosepiment (63) is provided with cleaning brush (61).
7. The axial separation type medium speed coal pulverizer coarse powder separator of claim 6, wherein: the cleaning brush (61) and the foam plate (63) are connected through a limiting spring (62).
8. The axial separation type medium speed coal pulverizer coarse powder separator of claim 6, wherein: the surface of the powder returning inner cone (5) is provided with a limiting block (65) corresponding to the bottom end of the foam plate (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011501287.8A CN112718221A (en) | 2020-12-18 | 2020-12-18 | Axial separation type medium speed coal mill coarse powder separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011501287.8A CN112718221A (en) | 2020-12-18 | 2020-12-18 | Axial separation type medium speed coal mill coarse powder separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112718221A true CN112718221A (en) | 2021-04-30 |
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ID=75603114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011501287.8A Pending CN112718221A (en) | 2020-12-18 | 2020-12-18 | Axial separation type medium speed coal mill coarse powder separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112718221A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976288A (en) * | 2021-11-19 | 2022-01-28 | 江苏吉达粉体工程设计研究院有限公司 | Multistage internal circulation system for realizing semi-finished powder grinding |
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|---|---|---|---|---|
| JPH04145958A (en) * | 1990-10-09 | 1992-05-19 | Ube Ind Ltd | Vertical crusher |
| CN201020467Y (en) * | 2007-04-06 | 2008-02-13 | 天津市新业船务工程有限公司 | Descaling and antiscaling device for water pipe with dust-collecting, desulfurizing and slag-removing functions for boiler |
| CN106694480A (en) * | 2016-12-01 | 2017-05-24 | 浙江兰博生物科技股份有限公司 | Improved nicotinamide conveying pipeline cleaning structure and action method thereof |
| CN208082824U (en) * | 2018-01-22 | 2018-11-13 | 南京邦康生物技术有限公司 | A kind of automation seed-coating machine charging gear |
| CN210206694U (en) * | 2019-05-16 | 2020-03-31 | 江西红星变性淀粉有限公司 | Raw material pretreatment device based on modified starch processing |
| CN210752989U (en) * | 2019-10-12 | 2020-06-16 | 江西群鑫强磁新材料股份有限公司 | Rare earth ore crushing and blanking anti-blocking device |
| CN211275001U (en) * | 2019-11-28 | 2020-08-18 | 西安热工研究院有限公司 | A medium-speed coal mill coarse powder separator using an axial separation device |
| CN212092540U (en) * | 2020-03-26 | 2020-12-08 | 四川蓝鼎新材料有限公司 | Building gesso roll-type desiccator |
-
2020
- 2020-12-18 CN CN202011501287.8A patent/CN112718221A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04145958A (en) * | 1990-10-09 | 1992-05-19 | Ube Ind Ltd | Vertical crusher |
| CN201020467Y (en) * | 2007-04-06 | 2008-02-13 | 天津市新业船务工程有限公司 | Descaling and antiscaling device for water pipe with dust-collecting, desulfurizing and slag-removing functions for boiler |
| CN106694480A (en) * | 2016-12-01 | 2017-05-24 | 浙江兰博生物科技股份有限公司 | Improved nicotinamide conveying pipeline cleaning structure and action method thereof |
| CN208082824U (en) * | 2018-01-22 | 2018-11-13 | 南京邦康生物技术有限公司 | A kind of automation seed-coating machine charging gear |
| CN210206694U (en) * | 2019-05-16 | 2020-03-31 | 江西红星变性淀粉有限公司 | Raw material pretreatment device based on modified starch processing |
| CN210752989U (en) * | 2019-10-12 | 2020-06-16 | 江西群鑫强磁新材料股份有限公司 | Rare earth ore crushing and blanking anti-blocking device |
| CN211275001U (en) * | 2019-11-28 | 2020-08-18 | 西安热工研究院有限公司 | A medium-speed coal mill coarse powder separator using an axial separation device |
| CN212092540U (en) * | 2020-03-26 | 2020-12-08 | 四川蓝鼎新材料有限公司 | Building gesso roll-type desiccator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976288A (en) * | 2021-11-19 | 2022-01-28 | 江苏吉达粉体工程设计研究院有限公司 | Multistage internal circulation system for realizing semi-finished powder grinding |
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Application publication date: 20210430 |