CN104226594B - Jet mill grading wheel dust seals structure - Google Patents
Jet mill grading wheel dust seals structure Download PDFInfo
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- CN104226594B CN104226594B CN201310226917.9A CN201310226917A CN104226594B CN 104226594 B CN104226594 B CN 104226594B CN 201310226917 A CN201310226917 A CN 201310226917A CN 104226594 B CN104226594 B CN 104226594B
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- grading wheel
- annular tooth
- discharger
- gap
- impeller disk
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Abstract
The invention discloses a kind of jet mill grading wheel dust and seal structure, grading wheel front has discharger, and between described discharger and described grading wheel, there is gap, gap location between described discharger and described grading wheel is provided with labyrinth seal, a series of labyrinth gap in labyrinth seal, dust granules can be stoped to pass through, thus playing dustproof effect；Additionally, in the outside of labyrinth seal, be additionally provided with several whirlwind sheets, rotate, by rotor, the centrifugal force produced and reach dust-proof purpose；Compared to prior art, the present invention can increase substantially effectiveness of classification, and without external gas source, has saved energy consumption。<!--1-->
Description
Technical field
The invention belongs to jet mill grading wheel construction applications, be specifically related to the dustproof construction of grading wheel discharge end。
Background technology
Jet mill grading wheel by the forward and backward impeller disk at two ends and be fixedly connected between the impeller disk one circle blade constitute, there is between adjacent blade charging seam, the inner side of one circle blade forms cavity, and the impeller disk is to close afterwards, the centre of the front impeller disk has discharging opening, namely material is that the periphery from grading wheel enters and the centre of the in the past impeller disk goes out, shown in the direction of arrow in Fig. 1, material from grading wheel out after enter immediately in the discharger in grading wheel front。Owing to grading wheel is affixed to rotating shaft and follows rotating shaft rotation, discharger is then affixed on cylinder static, therefore must have minim gap between grading wheel and discharger to ensure the normal rotation of grading wheel, but the coarse granule material that the minim gap between grading wheel and discharger is easily caused outside grading wheel inwardly leaks, thus affecting effectiveness of classification。
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of jet mill grading wheel dust and seal structure, the jet mill grading wheel dust of the present invention seals structure and utilizes own structural characteristics to produce throttle effect and centrifugal force to play the dustproof effect of grading wheel discharge end, without external gas source, reduce energy consumption, again and simple in construction, easy to implement。
The present invention is to solve that its technical problem be the technical scheme is that
A kind of jet mill grading wheel dust seals structure, and grading wheel front has discharger, and has gap between described discharger and described grading wheel, and the gap location between described discharger and described grading wheel is provided with labyrinth seal。
The present invention is to solve that the further technical scheme that its technical problem adopts is:
Say further, the structure of described labyrinth seal is: the discharge end of described grading wheel is provided with the first annular tooth of some circles, described discharger is provided with some circle the second annular tooth towards the face of described grading wheel, the described first annular tooth of some circles and described some circles the second annular tooth are all concentric, and described first annular tooth and the described second interlaced arrangement of annular tooth, described first annular tooth does not contact with described second annular tooth and is formed with gap each other。
It is preferably, the discharge end of described grading wheel is additionally provided with a circle whirlwind sheet, a described circle whirlwind sheet is positioned at the periphery of the second annular tooth of outmost turns, between described whirlwind sheet and the second annular tooth of described outmost turns contactless and be formed with gap, contactless and be formed with gap between described whirlwind sheet and described discharger。
Preferably, the cross section of described first annular tooth and the second annular tooth is all rectangle。
Say further, described grading wheel has the forward and backward impeller disk at two ends and the circle blade being fixedly connected between the impeller disk, there is between adjacent blade charging seam, the inner side of one circle blade forms cavity, and the impeller disk is to close afterwards, the centre of the front impeller disk has discharging opening, and described first annular tooth is positioned on the front impeller disk。
Say further, described grading wheel has the forward and backward impeller disk at two ends and the circle blade being fixedly connected between the impeller disk, there is between adjacent blade charging seam, the inner side of one circle blade forms cavity, and the impeller disk is to close afterwards, the centre of the front impeller disk has discharging opening, and described whirlwind sheet is positioned on the front impeller disk。
The invention has the beneficial effects as follows: it is be provided with labyrinth seal between the two at discharger and grading wheel that the jet mill grading wheel dust of the present invention seals structure, a series of labyrinth gap in labyrinth seal, it is possible to stop dust granules to pass through, thus playing dustproof effect；Additionally, in the outside of labyrinth seal, be additionally provided with several whirlwind sheets, rotate, by rotor, the centrifugal force produced and reach dust-proof purpose；Compared to prior art, the present invention can increase substantially effectiveness of classification, and without external gas source, has saved energy consumption。
Accompanying drawing explanation
Fig. 1 be the present invention partly cut open structural representation。
Detailed description of the invention
Embodiment: a kind of jet mill grading wheel dust seals structure, and grading wheel 1 front has discharger 2, and has gap between described discharger 2 and described grading wheel 1, and the gap location between described discharger and described grading wheel is provided with labyrinth seal 3。
The structure of described labyrinth seal 3 is: the discharge end of described grading wheel 1 is provided with the first annular tooth 13 of some circles, described discharger is provided with some circle the second annular tooth 23 towards 2 to the face of described grading wheel, the described first annular tooth of some circles 13 and described some circles the second annular tooth 23 are all concentric, and described first annular tooth 13 and the described second interlaced arrangement of annular tooth 23, described first annular tooth 13 does not contact with described second annular tooth 23 and is formed with gap each other。
The discharge end of described grading wheel 1 is additionally provided with a circle whirlwind sheet 4, a described circle whirlwind sheet 4 is positioned at the periphery of the second annular tooth 23 of outmost turns, between described whirlwind sheet and the second annular tooth of described outmost turns contactless and be formed with gap, contactless and be formed with gap between described whirlwind sheet and described discharger。
The cross section of described first annular tooth 13 and the second annular tooth 23 is all rectangle。
Described grading wheel 1 has the forward and backward impeller disk at two ends and the circle blade being fixedly connected between the impeller disk, there is between adjacent blade charging seam, the inner side of one circle blade forms cavity, and the impeller disk is to close afterwards, the centre of the front impeller disk has discharging opening, and described first annular tooth 13 and described whirlwind sheet 4 are positioned on the front impeller disk。
Claims (2)
1. a jet mill grading wheel dust seals structure, grading wheel (1) front has discharger (2), and between described discharger (2) and described grading wheel (1), there is gap, it is characterised in that: the gap location between described discharger and described grading wheel is provided with labyrinth seal (3)；
The structure of described labyrinth seal (3) is: the discharge end of described grading wheel (1) is provided with the first annular tooth of some circles (13), described discharger (2) is provided with some circles the second annular tooth (23) towards the face of described grading wheel, the first annular tooth of described some circles (13) and described some circles the second annular tooth (23) are all concentric, and described first annular tooth (13) and the interlaced arrangement of described second annular tooth (23), described first annular tooth (13) does not contact with described second annular tooth (23) and is formed with gap each other；
The discharge end of described grading wheel (1) is additionally provided with a circle whirlwind sheet (4), described circle whirlwind sheet (4) is positioned at the periphery of second annular tooth (23) of outmost turns, between described whirlwind sheet and the second annular tooth of described outmost turns contactless and be formed with gap, contactless and be formed with gap between described whirlwind sheet and described discharger；
Described grading wheel (1) has the forward and backward impeller disk at two ends and the circle blade being fixedly connected between the impeller disk, there is between adjacent blade charging seam, the inner side of one circle blade forms cavity, and the impeller disk is to close afterwards, the centre of the front impeller disk has discharging opening, described first annular tooth (13) is positioned on the front impeller disk, and described whirlwind sheet (4) is positioned on the front impeller disk。
2. jet mill grading wheel dust as claimed in claim 1 seals structure, it is characterised in that: the cross section of described first annular tooth (13) and the second annular tooth (23) is all rectangle。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310226917.9A CN104226594B (en) | 2013-06-08 | 2013-06-08 | Jet mill grading wheel dust seals structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310226917.9A CN104226594B (en) | 2013-06-08 | 2013-06-08 | Jet mill grading wheel dust seals structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104226594A CN104226594A (en) | 2014-12-24 |
| CN104226594B true CN104226594B (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310226917.9A Active CN104226594B (en) | 2013-06-08 | 2013-06-08 | Jet mill grading wheel dust seals structure |
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| Country | Link |
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| CN (1) | CN104226594B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653804A (en) * | 2021-08-05 | 2021-11-16 | 华能通辽风力发电有限公司 | Oil seal structure and generator set |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5301812A (en) * | 1993-04-02 | 1994-04-12 | Ecc International Inc. | Air classifying apparatus with wear reducing deflector |
| CN102274826A (en) * | 2011-05-06 | 2011-12-14 | 桂林恒达矿山机械有限公司 | Superfine turbine classifier |
| CN202377193U (en) * | 2011-12-28 | 2012-08-15 | 潍坊正远粉体工程设备有限公司 | Multi-level classifying machine |
| CN203281509U (en) * | 2013-06-08 | 2013-11-13 | 昆山市密友装备制造有限责任公司 | Grading gear dust leakproof structure of jet mill |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01184084A (en) * | 1988-01-18 | 1989-07-21 | Onoda Cement Co Ltd | Preventing device for leaking inside in classifier |
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2013
- 2013-06-08 CN CN201310226917.9A patent/CN104226594B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5301812A (en) * | 1993-04-02 | 1994-04-12 | Ecc International Inc. | Air classifying apparatus with wear reducing deflector |
| CN102274826A (en) * | 2011-05-06 | 2011-12-14 | 桂林恒达矿山机械有限公司 | Superfine turbine classifier |
| CN202377193U (en) * | 2011-12-28 | 2012-08-15 | 潍坊正远粉体工程设备有限公司 | Multi-level classifying machine |
| CN203281509U (en) * | 2013-06-08 | 2013-11-13 | 昆山市密友装备制造有限责任公司 | Grading gear dust leakproof structure of jet mill |
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| CN104226594A (en) | 2014-12-24 |
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| C14 | Grant of patent or utility model | ||
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Jianming Inventor before: Wu Jianming Inventor before: Yuan Xinlei |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215316 Kunshan, Suzhou City, Yushan city town of Jade Road, No. 1 Patentee after: JiangSu Miyou Powder New Equipment Manufacturing Co., Ltd. Address before: 215300, No. 16 South hope road, Yushan Town, Kunshan City, Jiangsu, Suzhou Patentee before: KUNSHAN MIYOU EQUIPMENT MANUFACTURING CO., LTD. |