CN104841535A - Jet mill according with crushing zone flow field - Google Patents
Jet mill according with crushing zone flow field Download PDFInfo
- Publication number
- CN104841535A CN104841535A CN201410054594.4A CN201410054594A CN104841535A CN 104841535 A CN104841535 A CN 104841535A CN 201410054594 A CN201410054594 A CN 201410054594A CN 104841535 A CN104841535 A CN 104841535A
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- China
- Prior art keywords
- section
- boss
- crushing
- annular groove
- flow field
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/06—Jet mills
Abstract
The invention discloses a jet mill according with a crushing zone flow field. The jet mill comprises a crushing cylinder body, and a crushing zone is arranged on the lower portion of the crushing cylinder body. An air distribution plate is arranged outside the crushing zone, and the air distribution plate is communicated with an external compressed air source through an air inlet tube. Compressed air is distributed through the air distribution plate and then is supplied to a plurality of spray nozzles in the crushing cylinder body. The middle of the bottom of the crushing cylinder body retracts towards the crushing zone by a preset height to form a boss, and an annular groove is formed in the periphery of the boss. According to the jet mill, a conical cylinder structure of a traditional crushing cylinder body is improved to be a streamline boss type cylinder bottom structure, and the bottom shape of the crushing cylinder body can be matched with the crushing zone flow field formed by the spray nozzles; accordingly, materials at the bottom of the crushing cylinder body can be fully crushed, and the purposes of improving the crushing efficiency and the yield of the entire jet mill, reducing the material residual quantity in the crushing cylinder body after crushing, reducing the height of the entire jet mill and reducing the occupied space are achieved.
Description
Technical field
The invention belongs to airslide disintegrating mill construction applications, be specifically related to a kind of airslide disintegrating mill meeting flow field, disintegrating area.
Background technology
All by by compressed air during airslide disintegrating mill work, the disintegrating area of pulverizing cavity is spurted into through nozzle at high speeds, at the joint place material of multiply high pressure draught by impact several times, friction, shearing and pulverizing, material after pulverizing moves to graded region with ascending air, under the air-flow centripetal force effect that powerful centrifugal force and the blower negative pressure of the generation of grading wheel High Rotation Speed produce, thickness material realizes being separated, the fine grained meeting granularity requirements passes through grading wheel, collected discharging by rear road whirlwind wind from device, pulse dust collector, coarse granule returns to disintegrating area to be continued to pulverize.
But, the bottom of the pulverizing cylindrical shell of airslide disintegrating mill as shown in Figure 1, general is all conically shaped 7 structure, conically shaped bottom lock, the shortcoming of this conically shaped structure is that the flow field that multiple nozzle is formed in disintegrating area is misfitted with pulverizing cylindrical shell bottom shape, thus have impact on crush efficiency and the output of whole airslide disintegrating mill, and it is larger to have pulverized rear conically shaped bottoms material residual quantity.In addition, conically shaped is longitudinally arranged usually, has elongated the height of whole airslide disintegrating mill, needs to occupy larger space.
Summary of the invention
In order to solve the problem, the invention provides a kind of airslide disintegrating mill meeting flow field, disintegrating area, by being streamline projective table type cylinder bottom structure by the conically shaped structural improvement of conventional size reduction cylindrical shell, the flow field, disintegrating area that the bottom shape of pulverizing cylindrical shell and multiple nozzle can be made to be formed matches, thus the material pulverizing cylinder body bottom is fully pulverized, reach the crush efficiency and output that improve whole airslide disintegrating mill, reduce the material residual quantity after pulverizing in pulverizing cylindrical shell and the height reducing whole airslide disintegrating mill, reduce the object taken up space.
The present invention in order to the technical scheme solving its technical problem and adopt is:
A kind of airslide disintegrating mill meeting flow field, disintegrating area, comprise pulverizing cylindrical shell, described pulverizing cylindrical shell bottom is disintegrating area, outside described disintegrating area, there is gas distribution plate, described gas distribution plate is communicated with external compressed air source by air inlet pipe, compressed air supplies by described gas distribution plate distribution several nozzles be located in described pulverizing cylindrical shell afterwards, and the middle part of the bottom of described pulverizing cylindrical shell forms a boss after described disintegrating area indentation one preset height, and the periphery of described boss forms an annular groove.
As a further improvement on the present invention, along the indentation direction of described boss, have at least in the section of described boss and the section of described annular groove one curved.
As a further improvement on the present invention, the section of described boss is curved, and the section of described boss is in axially symmetric shape, and the section of described annular groove is in axially symmetric shape.
As a further improvement on the present invention, the section of described annular groove is curved, and the section of described boss is in axially symmetric shape, and the section of described annular groove is in axially symmetric shape.
As a further improvement on the present invention, the section of described boss and the section of described annular groove all curved, and the section of described boss is in axially symmetric shape, and the section of described annular groove is in axially symmetric shape, is formed at the bottom of a streamline projective table type cylinder.
The invention has the beneficial effects as follows: the airslide disintegrating mill that the present invention meets flow field, disintegrating area has following advantage:
Present invention improves over the polycrystalline substance of the pulverizing cylindrical shell of airslide disintegrating mill: be improved to bottom traditional conically shaped: middle part forms a boss after disintegrating area indentation one preset height, the periphery of boss forms an annular groove, preferably, along the indentation direction of boss, have at least in the section of boss and the section of annular groove one curved.During concrete enforcement, can be designed as: 1, the section of boss is curved and the cross sectional portion of annular groove is non-arc; 2, the section of boss is non-arc and the section of annular groove is curved; 3, the section of boss and the section of annular groove all curved.In above-mentioned three kinds of embodiments, the third is preferred forms.Better, the section of boss is in axially symmetric shape, and the section of annular groove is in axially symmetric shape, is formed at the bottom of a streamline projective table type cylinder.Make it to meet flow field, disintegrating area by improving the polycrystalline substance pulverizing cylindrical shell in said structure of the present invention, the flow field, disintegrating area that the bottom shape of pulverizing cylindrical shell and multiple nozzle are formed matches, thus reach and fully pulverize pulverizing the material of cylinder body bottom, improve the crush efficiency of whole airslide disintegrating mill and the object of output; In addition, the polycrystalline substance that the present invention pulverizes cylindrical shell is at the bottom of streamline projective table type cylinder, relatively traditional conically shaped, can reduce after pulverizing and pulverize the material residual quantity in cylindrical shell and the height of the whole airslide disintegrating mill of reduction, reach the object reducing and take up space.
Accompanying drawing explanation
Fig. 1 is the structural representation in flow field, disintegrating area in prior art;
Fig. 2 is structural representation of the present invention.
By reference to the accompanying drawings, make the following instructions:
1---pulverizing cylindrical shell 2---disintegrating area
3---gas distribution plate 4---nozzle
5---boss 6---annular groove
7---conically shaped
Detailed description of the invention
As shown in Figure 2, a kind of airslide disintegrating mill meeting flow field, disintegrating area, comprise and pulverize cylindrical shell 1, described pulverizing cylindrical shell bottom is disintegrating area 2, there is outside described disintegrating area gas distribution plate 3, described gas distribution plate is communicated with external compressed air source by air inlet pipe, compressed air supplies by described gas distribution plate distribution several nozzles 4 be located in described pulverizing cylindrical shell afterwards, it is characterized in that: the middle part of the bottom of described pulverizing cylindrical shell forms a boss 5 after described disintegrating area indentation one preset height, and the periphery of described boss forms an annular groove 6.
Preferably, along the indentation direction of described boss, have at least in the section of described boss and the section of described annular groove one curved.
Preferably, the section of described boss is curved, and the section of described boss is in axially symmetric shape, and the section of described annular groove is in axially symmetric shape.
Preferably, the section of described annular groove is curved, and the section of described boss is in axially symmetric shape, and the section of described annular groove is in axially symmetric shape.
Preferably, the section of described boss and the section of described annular groove all curved, and the section of described boss is in axially symmetric shape, and the section of described annular groove is in axially symmetric shape, is formed at the bottom of a streamline projective table type cylinder.
In sum, present invention improves over the polycrystalline substance of the pulverizing cylindrical shell of airslide disintegrating mill: be improved to bottom traditional conically shaped: middle part forms a boss after disintegrating area indentation one preset height, the periphery of boss forms an annular groove, preferably, along the indentation direction of boss, have at least in the section of boss and the section of annular groove one curved.During concrete enforcement, can be designed as: 1, the section of boss is curved and the cross sectional portion of annular groove is non-arc; 2, the section of boss is non-arc and the section of annular groove is curved; 3, the section of boss and the section of annular groove all curved.In above-mentioned three kinds of embodiments, the third is preferred forms.Better, the section of boss is in axially symmetric shape, and the section of annular groove is in axially symmetric shape, is formed at the bottom of a streamline projective table type cylinder.Make it to meet flow field, disintegrating area by improving the polycrystalline substance pulverizing cylindrical shell in said structure of the present invention, the flow field, disintegrating area that the bottom shape of pulverizing cylindrical shell and multiple nozzle are formed matches, thus reach and fully pulverize pulverizing the material of cylinder body bottom, improve the crush efficiency of whole airslide disintegrating mill and the object of output; In addition, the polycrystalline substance that the present invention pulverizes cylindrical shell is at the bottom of streamline projective table type cylinder, relatively traditional conically shaped, can reduce after pulverizing and pulverize the material residual quantity in cylindrical shell and the height of the whole airslide disintegrating mill of reduction, reach the object reducing and take up space.
Above embodiment is with reference to accompanying drawing, to a preferred embodiment of the present invention will be described in detail.Those skilled in the art by carrying out amendment on various forms or change to above-described embodiment, but when not deviating from essence of the present invention, drops within protection scope of the present invention.
Claims (5)
1. one kind meets the airslide disintegrating mill in flow field, disintegrating area, comprise and pulverize cylindrical shell (1), described pulverizing cylindrical shell bottom is disintegrating area (2), there is outside described disintegrating area gas distribution plate (3), described gas distribution plate is communicated with external compressed air source by air inlet pipe, compressed air supplies by described gas distribution plate distribution several nozzles (4) be located in described pulverizing cylindrical shell afterwards, it is characterized in that: the middle part of the bottom of described pulverizing cylindrical shell forms a boss (5) after described disintegrating area indentation one preset height, and the periphery of described boss forms an annular groove (6).
2. the airslide disintegrating mill meeting flow field, disintegrating area according to claim 1, is characterized in that: along the indentation direction of described boss, have at least in the section of described boss and the section of described annular groove one curved.
3. the airslide disintegrating mill meeting flow field, disintegrating area according to claim 2, it is characterized in that: the section of described boss is curved, and the section of described boss is in axially symmetric shape, the section of described annular groove is in axially symmetric shape.
4. the airslide disintegrating mill meeting flow field, disintegrating area according to claim 2, it is characterized in that: the section of described annular groove is curved, and the section of described boss is in axially symmetric shape, the section of described annular groove is in axially symmetric shape.
5. the airslide disintegrating mill meeting flow field, disintegrating area according to claim 2, it is characterized in that: the section of described boss and the section of described annular groove all curved, and the section of described boss is in axially symmetric shape, the section of described annular groove is in axially symmetric shape, is formed at the bottom of a streamline projective table type cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410054594.4A CN104841535A (en) | 2014-02-18 | 2014-02-18 | Jet mill according with crushing zone flow field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410054594.4A CN104841535A (en) | 2014-02-18 | 2014-02-18 | Jet mill according with crushing zone flow field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104841535A true CN104841535A (en) | 2015-08-19 |
Family
ID=53841743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410054594.4A Pending CN104841535A (en) | 2014-02-18 | 2014-02-18 | Jet mill according with crushing zone flow field |
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| Country | Link |
|---|---|
| CN (1) | CN104841535A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4100338A1 (en) * | 1991-01-08 | 1992-07-09 | Nied Roland | Measuring level of granular material in container - evaluating vibration properties of container, container wall or section of wall |
| EP1618959A1 (en) * | 2004-07-23 | 2006-01-25 | STM di Marcon Francesco & C. S.a.s. | Pressurized air counter-jet micronizing mill |
| CN201519597U (en) * | 2009-10-23 | 2010-07-07 | 山东青州微粉有限公司 | Nozzle protector device for air mill |
| CN203281381U (en) * | 2013-06-08 | 2013-11-13 | 昆山市密友装备制造有限责任公司 | Efficient energy-saving jet mill |
| CN203725221U (en) * | 2014-02-18 | 2014-07-23 | 昆山市密友装备制造有限责任公司 | Airflow crusher matched with crushing zone flow field |
-
2014
- 2014-02-18 CN CN201410054594.4A patent/CN104841535A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4100338A1 (en) * | 1991-01-08 | 1992-07-09 | Nied Roland | Measuring level of granular material in container - evaluating vibration properties of container, container wall or section of wall |
| EP1618959A1 (en) * | 2004-07-23 | 2006-01-25 | STM di Marcon Francesco & C. S.a.s. | Pressurized air counter-jet micronizing mill |
| CN201519597U (en) * | 2009-10-23 | 2010-07-07 | 山东青州微粉有限公司 | Nozzle protector device for air mill |
| CN203281381U (en) * | 2013-06-08 | 2013-11-13 | 昆山市密友装备制造有限责任公司 | Efficient energy-saving jet mill |
| CN203725221U (en) * | 2014-02-18 | 2014-07-23 | 昆山市密友装备制造有限责任公司 | Airflow crusher matched with crushing zone flow field |
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| C06 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150819 |
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| RJ01 | Rejection of invention patent application after publication |