CN201516416U - Inverted airflow seal device used for airflow classer - Google Patents
Inverted airflow seal device used for airflow classer Download PDFInfo
- Publication number
- CN201516416U CN201516416U CN2009202401203U CN200920240120U CN201516416U CN 201516416 U CN201516416 U CN 201516416U CN 2009202401203 U CN2009202401203 U CN 2009202401203U CN 200920240120 U CN200920240120 U CN 200920240120U CN 201516416 U CN201516416 U CN 201516416U
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- CN
- China
- Prior art keywords
- airflow
- grading wheel
- baffle ring
- classer
- gas flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an inverted airflow seal device used for an airflow classer, belonging to seal devices and including a classifying wheel fixed on a rotary shaft of the airflow classer and located on an upper end cover of the airflow classer; a baffle ring, fixed on the upper end cover and surrounding the peripheral surface of the end of the classer, a ring-shaped clearance between the ends of the baffle ring and the classifying wheel forms an airflow chunnel, and the inverted airflow is formed in the airflow chunnel when the classifying wheel is rotated. The utility model solves the technical problems that usage performance is not reliable, sealing is not tight after wear abrasion, and the product quality is affected. The utility model has a simple structure and is used for airflow classers widely.
Description
Technical field
The utility model relates to sealing device, relates in particular to a kind of back draught sealing device that is used for gas flow sizing machine.
Background technology
Gas flow sizing machine is for preventing that large granular materials from entering product region and all being provided with the grading wheel sealing device between grading wheel and upper end cover at present, and the grading wheel sealing device generally adopts labyrinth sealing or two kinds of structures of mechanical sealing.
In actual use, because there is negative pressure in the grading wheel inner chamber, the material major part enters inner chamber by the separation of grading wheel blade from exocoel, collect finished product by air-introduced machine again, use through long-time, have the maze trough that material enters labyrinth-type excluder, stuck rotor when causing start; Or mechanical sealing device uses back wearing and tearing for a long time and causes poorly sealedly, and large granular materials enters into the finished product district easily, directly influences product quality.
The utility model content
Technical problem to be solved in the utility model is: a kind of back draught sealing device that is used for gas flow sizing machine is provided, and unreliable to solve gas flow sizing machine sealing device serviceability, the wearing and tearing back is poorly sealed, influences the technical problem of product quality.
For solving the problems of the technologies described above, the technical solution of the utility model is: the back draught sealing device that is used for gas flow sizing machine, comprise grading wheel, described grading wheel is fixedly installed in the rotating shaft of gas flow sizing machine, and described grading wheel is positioned at the cylindrical shell of gas flow sizing machine and the upper end cover of close gas flow sizing machine; Baffle ring, described baffle ring is fixedly installed on the described upper end cover and around the end outer peripheral face of described grading wheel, annular gap between the end of described baffle ring and described grading wheel forms gas channel, forms back draught in the described gas channel when described grading wheel rotates.
As a kind of improvement, described back draught sealing device also comprises the secondary rotor that is provided with blade, and described secondary rotor is fixedly installed in the described rotating shaft and between described grading wheel and upper cover plate, described blade is along the radial arrangement of described baffle ring.
Owing to adopted technique scheme, the beneficial effects of the utility model are: owing to be positioned at the outer peripheral face of grading wheel end around being provided with baffle ring on upper end cover, make when grading wheel rotates, form the malleation air-flow in the annular gap between grading wheel and baffle ring, stop that effectively material enters inner chamber by the gap between described grading wheel and the upper end cover, has guaranteed product quality.Owing to be provided with secondary rotor between grading wheel and the upper cover plate, secondary rotor is provided with along described baffle ring radial distribution blade, strengthened the positive air pressure between grading wheel and the baffle ring more, make that the sealing device performance is more reliable, stop that material by the better effects if that the gap between grading wheel and the upper end cover enters inner chamber, has improved the operating efficiency of grader.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is a structural representation of using gas flow sizing machine of the present utility model;
Among the figure: 1, rotating shaft, 2, secondary rotor, 3, baffle ring, 4, upper end cover, 5, grading wheel, 6, cylindrical shell, 7, discharge valve, 8, feed pipe, 9, discharging opening.
The specific embodiment
Accompanying drawing shows a kind of gas flow sizing machine, has adopted concrete structure of the present utility model on it, and it comprises the grading room that cylindrical shell 6 and upper end cover 4 are formed; Grading wheel 5, described grading wheel 5 are fixedly installed in by on the rotary shaft driven 1 and be positioned at described grading room, and described grading wheel 5 is divided into inner chamber and exocoel with described grading room, and described inner chamber is grading wheel 5 inner spaces; Described upper end cover 4 is provided with baffle ring 3, described baffle ring 3 is around the outer peripheral face of described grading wheel 5 ends, annular gap between the end of described baffle ring 3 and described grading wheel 5 forms gas channel, when described grading wheel 5 rotates, form back draught in the described gas channel, be used to stop that material enters described inner chamber by the gap between described grading wheel 5 and the upper end cover 4.
Described back draught sealing device also comprises the secondary rotor 2 that is provided with blade, and described secondary rotor 2 is fixedly installed in the described rotating shaft 1, and described secondary rotor 2 is between described grading wheel 5 and upper cover plate 4, and described blade is along the radial arrangement of described baffle ring 3.
Its course of work is as follows:
The discharging opening 9 of grader connects air-introduced machine, make and form negative pressure in the grading room, power set drive rotating shaft 1 rotation at a high speed, driving grading wheel 5 and secondary rotor 2 rotates together, periphery at secondary rotor 2 is provided with baffle ring 3, baffle ring 3 is fixedly installed on the upper end cover 4 of grader, when secondary rotor 2 rotates with rotating shaft 1, forms the malleation air-flow in the annular gap between the blade of secondary rotor 2 and the baffle ring 3.Material enters grading room from feed pipe 8, upwards operation under the effect of air-introduced machine air-flow, when flowing through grading wheel 5, because centrifugal action, large granular materials is thrown away by grading wheel 5, the granule micro mist then enters the inner chamber of grading wheel 5, discharges the back draught sealing device that is used for gas flow sizing machine along the air inducing air-flow, is collected as finished product.Owing to form the malleation air-flow in the blade of secondary rotor 2 and the annular gap between the baffle ring 3, stop that effectively material enters inner chamber by the gap between described grading wheel 5 and the upper end cover 4, has guaranteed product quality.Large granular materials is discharged by the discharge valve 7 of cylindrical shell 6 bottoms, collects.
The utility model is not limited to above-mentioned concrete embodiment; for example: secondary rotor is fixedly installed on the upper surface of grading wheel or with grading wheel and secondary rotor and is made into one; those of ordinary skill in the art is from above-mentioned design; without performing creative labour; all conversion of having done all drop within the protection domain of the present utility model.
Claims (2)
1. be used for the back draught sealing device of gas flow sizing machine, it is characterized in that: comprise
Grading wheel, described grading wheel are fixedly installed in the rotating shaft of gas flow sizing machine, and described grading wheel is positioned at the cylindrical shell of gas flow sizing machine and the upper end cover of close gas flow sizing machine;
Baffle ring, described baffle ring is fixedly installed on the described upper end cover and around the end outer peripheral face of described grading wheel, annular gap between the end of described baffle ring and described grading wheel forms gas channel, forms back draught in the described gas channel when described grading wheel rotates.
2. the back draught sealing device that is used for gas flow sizing machine as claimed in claim 1 is characterized in that: described back draught sealing device also comprises
Be provided with the secondary rotor of blade, described secondary rotor is fixedly installed in the described rotating shaft and between described grading wheel and upper end cover, described blade is along the radial arrangement of described baffle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202401203U CN201516416U (en) | 2009-10-23 | 2009-10-23 | Inverted airflow seal device used for airflow classer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202401203U CN201516416U (en) | 2009-10-23 | 2009-10-23 | Inverted airflow seal device used for airflow classer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201516416U true CN201516416U (en) | 2010-06-30 |
Family
ID=42497129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202401203U Expired - Fee Related CN201516416U (en) | 2009-10-23 | 2009-10-23 | Inverted airflow seal device used for airflow classer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201516416U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806699A (en) * | 2010-03-19 | 2010-08-18 | 常州精钢机械有限公司 | Air flow sealing single-turn analyzer |
| CN105057125A (en) * | 2015-08-21 | 2015-11-18 | 胡建军 | Hu's cyclone separation device |
| CN106731400A (en) * | 2016-12-31 | 2017-05-31 | 西安交通大学青岛研究院 | A kind of electric device space environment purifier and purification method |
| CN106799106A (en) * | 2016-12-31 | 2017-06-06 | 西安交通大学青岛研究院 | A kind of side entering type electric device space environment purifier and purification method |
| CN106823645A (en) * | 2016-12-31 | 2017-06-13 | 西安交通大学青岛研究院 | A kind of side entering type power equipment environmental purification device and purification method |
| CN106839144A (en) * | 2016-12-31 | 2017-06-13 | 西安交通大学青岛研究院 | A kind of power equipment environmental purification device and purification method |
| CN111085436A (en) * | 2019-12-31 | 2020-05-01 | 河北科技大学 | Air flow sealing powder concentrator with pre-grading function |
| CN112246631A (en) * | 2020-09-05 | 2021-01-22 | 江苏吉能达环境能源科技有限公司 | Safe and environment-friendly sealing device for powder concentrator |
| CN114011715A (en) * | 2021-12-14 | 2022-02-08 | 昆山强威粉体设备有限公司 | Grading wheel negative pressure discharging device of fluidized bed collision type jet mill |
-
2009
- 2009-10-23 CN CN2009202401203U patent/CN201516416U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806699A (en) * | 2010-03-19 | 2010-08-18 | 常州精钢机械有限公司 | Air flow sealing single-turn analyzer |
| CN105057125A (en) * | 2015-08-21 | 2015-11-18 | 胡建军 | Hu's cyclone separation device |
| CN106731400A (en) * | 2016-12-31 | 2017-05-31 | 西安交通大学青岛研究院 | A kind of electric device space environment purifier and purification method |
| CN106799106A (en) * | 2016-12-31 | 2017-06-06 | 西安交通大学青岛研究院 | A kind of side entering type electric device space environment purifier and purification method |
| CN106823645A (en) * | 2016-12-31 | 2017-06-13 | 西安交通大学青岛研究院 | A kind of side entering type power equipment environmental purification device and purification method |
| CN106839144A (en) * | 2016-12-31 | 2017-06-13 | 西安交通大学青岛研究院 | A kind of power equipment environmental purification device and purification method |
| CN111085436A (en) * | 2019-12-31 | 2020-05-01 | 河北科技大学 | Air flow sealing powder concentrator with pre-grading function |
| CN111085436B (en) * | 2019-12-31 | 2021-11-19 | 河北科技大学 | Air flow sealing powder concentrator with pre-grading function |
| CN112246631A (en) * | 2020-09-05 | 2021-01-22 | 江苏吉能达环境能源科技有限公司 | Safe and environment-friendly sealing device for powder concentrator |
| CN112246631B (en) * | 2020-09-05 | 2022-02-08 | 江苏吉能达环境能源科技有限公司 | Safe and environment-friendly sealing device for powder concentrator |
| CN114011715A (en) * | 2021-12-14 | 2022-02-08 | 昆山强威粉体设备有限公司 | Grading wheel negative pressure discharging device of fluidized bed collision type jet mill |
| CN114011715B (en) * | 2021-12-14 | 2022-12-06 | 昆山强威粉体设备有限公司 | Grading wheel negative pressure discharging device of fluidized bed collision type jet mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20131023 |