CN203342912U - Air ring sealing device for vertical roller mill - Google Patents
Air ring sealing device for vertical roller mill Download PDFInfo
- Publication number
- CN203342912U CN203342912U CN 201320289300 CN201320289300U CN203342912U CN 203342912 U CN203342912 U CN 203342912U CN 201320289300 CN201320289300 CN 201320289300 CN 201320289300 U CN201320289300 U CN 201320289300U CN 203342912 U CN203342912 U CN 203342912U
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- Prior art keywords
- air
- arc plate
- vane
- sealing device
- air ring
- 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 - Lifetime
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Abstract
The utility model relates to an air ring sealing device for a vertical roller mill, which comprises plane arc plates and a vertical arc plate which are vertically and fixedly connected together, and an air ring cover plate, wherein the bottom end of the vertical arc plate is connected and fixed with the upper surface of an air ring inner ring; the plane arc plates and the vertical arc plate are circular ring structures formed by assembling a plurality of fan-shaped units respectively; each fan-shaped unit comprises a fan-shaped plane arc plate and a fan-shaped vertical arc plate; and the air ring cover plate is arranged above a gap between an air ring and a millstone. The air ring sealing device is simple in structure and convenient in field construction; air locking between the millstone and the air ring can be achieved to the greatest extent; transverse cutting of hot air penetrating through a gap between the air ring cover plate and the upper surface of the air ring inner ring on main air is avoided, so that the main air passes through the air ring smoothly; and the air quantity and the air speed are reduced.
Description
Technical field
The utility model relates to gas-tight sealing, especially a kind of vertical roll grinder vane sealing device.
Background technology
Come the hot blast of autogenous tumbling mill lower house by after vane, variation in various degree all can occur in its throughput direction, angle and size.The material (hereinafter to be referred as finished product) that suffered buoyancy is greater than self gravitation after the hot blast changed will grind brings to the powder concentrator place and is selected powder; The material (hereinafter to be referred as semi-finished product) that suffered buoyancy is less than self gravitation drops down onto the feed back storehouse by vane under the mill centrifugal action, carries out regrind.Can provide enough hot blasts that the finished product on mill is fully selected away, closely related with vane device.
Traditional vane is arranged between lower house and mill, owing to still there being gap between vane inner ring and mill, parts for the vane sealing are the vane cover plate at present, this vane cover plate is horizontally set on the top, gap between vane inner ring and mill, only the sealing of vertical direction has been carried out in gap between vane and mill, ignored the factor to main air amount transverse cuts by the horizontal direction hot blast entered below the vane cover plate, cause the inner actual hot blast input quantity of grinding machine and wind speed and theoretical numerical value to produce deviation, thereby suppress the normal performance of grinding machine production capacity.
The utility model content
The utility model is to produce the defect of beam wind cutting Mount Everest for existing vane seal member, and a kind of vertical roll grinder vane sealing device that can eliminate the wind cutting phenomenon is provided.
For achieving the above object, the technical solution adopted in the utility model is: a kind of vertical roll grinder vane sealing device, comprise the plane arc plate and the vertical arc plate that vertically are fixed together, and the bottom of described vertical arc plate and vane inner ring upper surface are connected and fixed.
Plane arc plate and vertical arc plate are to fit together by a plurality of sector elements the cirque structure formed respectively.
Each sector element includes a fan-shaped plan arc plate and a fan-shaped vertical arc plate.
The vane cover plate that the sealing device will be arranged on vane and top, mill gap comprises wherein.
Compared with prior art, the utility model is simple in structure, site operation is convenient, can at utmost realize the lock wind between mill and vane, avoid the hot blast in the gap by vane cover plate and vane inner ring upper surface to produce transverse cuts to main air, make main air pass through the vane path smooth and easy, air quantity and wind speed damage to subtract and are reduced.
The accompanying drawing explanation
Fig. 1 is the utility model installation site schematic diagram.
The partial enlarged drawing that Fig. 2 is Fig. 1.
In figure: vane 1, lower house 2, mill 3, vane cover plate 4, plane arc plate 5, vertical arc plate 6.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Referring to accompanying drawing 2, this vane sealing device is the cirque structure assembled by a plurality of fan-shaped plane arc plates 5 and vertical arc plate 6.A fan-shaped plane arc plate 5 and a fan-shaped vertical arc plate 6 are welded to each other sector element of rear formation, and a plurality of sector elements are assembled into whole sealing device, and the angle of each sector element is determined according to actual needs.
As shown in Figure 1, vane 1 is arranged between lower house 2 and mill 3, between the inner ring of vane 1 and mill, gap is arranged, this gap windward is provided with the vane cover plate 4 be fixedly connected with mill 3, and lower end and the vane inner ring upper surface of the vertical arc plate 6 in this novel disclosed this sealing device are welded and fixed.A plurality of sector elements are along the circumferential directions of vane inner ring upper surface.Plane arc plate, vertical arc plate and vane inner ring form semi-enclosed cell body, and the vane cover plate is comprised wherein, form maze-type structure, realize lock wind, and in figure, the direction of arrow is the hot blast flow direction, and under labyrinth seal function, the transverse cuts of hot blast disappears.
Claims (4)
1. a vertical roll grinder vane sealing device, is characterized in that, comprises the plane arc plate and the vertical arc plate that vertically are fixed together, and the bottom of described vertical arc plate and vane inner ring upper surface are connected and fixed.
2. vertical roll grinder vane sealing device according to claim 1, is characterized in that, described plane arc plate and vertical arc plate are to fit together by a plurality of sector elements the cirque structure formed respectively.
3. vertical roll grinder vane sealing device according to claim 2, is characterized in that, each sector element includes a fan-shaped plan arc plate and a fan-shaped vertical arc plate.
4. vertical roll grinder vane sealing device according to claim 1, is characterized in that, the vane cover plate that the sealing device will be arranged on vane and top, mill gap comprises wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320289300 CN203342912U (en) | 2013-05-24 | 2013-05-24 | Air ring sealing device for vertical roller mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320289300 CN203342912U (en) | 2013-05-24 | 2013-05-24 | Air ring sealing device for vertical roller mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203342912U true CN203342912U (en) | 2013-12-18 |
Family
ID=49742852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320289300 Expired - Lifetime CN203342912U (en) | 2013-05-24 | 2013-05-24 | Air ring sealing device for vertical roller mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203342912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776224A (en) * | 2015-02-02 | 2015-07-15 | 浙江大学 | Medium-speed coal mill air ring dynamic and static clearance sealing device |
| CN109675682A (en) * | 2019-01-21 | 2019-04-26 | 唐山冀东装备工程股份有限公司 | A kind of vane device for slag vertical-mill |
-
2013
- 2013-05-24 CN CN 201320289300 patent/CN203342912U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776224A (en) * | 2015-02-02 | 2015-07-15 | 浙江大学 | Medium-speed coal mill air ring dynamic and static clearance sealing device |
| CN109675682A (en) * | 2019-01-21 | 2019-04-26 | 唐山冀东装备工程股份有限公司 | A kind of vane device for slag vertical-mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |