CN102430453B - Polygonal adjustable air ring for roll mill - Google Patents
Polygonal adjustable air ring for roll mill Download PDFInfo
- Publication number
- CN102430453B CN102430453B CN201010298691.XA CN201010298691A CN102430453B CN 102430453 B CN102430453 B CN 102430453B CN 201010298691 A CN201010298691 A CN 201010298691A CN 102430453 B CN102430453 B CN 102430453B
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- ring
- vane
- lower blinds
- mill
- adjustable air
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- 238000000227 grinding Methods 0.000 claims description 55
- 239000003082 abrasive agent Substances 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000003801 milling Methods 0.000 abstract description 4
- 239000000843 powder Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- 239000002994 raw material Substances 0.000 description 7
- 239000008187 granular material Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004503 fine granule Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to a polygonal adjustable air ring for a roll mill. The polygonal adjustable air ring is arranged in an annular space formed between a mill shell and a milling disc, and comprises a lower shutter air ring and an upper guide ring, wherein the lower shutter air ring surrounds the milling disc and is welded with the mill shell; the lower shutter air ring is equally divided into 36-48 same parts; each part is an independent air outlet; the air outlet mainly comprises a lower shutter air ring outer panel and a pair of lower shutter air ring oblique guide plates; and the upper guide ring is arranged above the lower shutter air ring. Compared with the prior art, the air ring has the advantages of simple structure, convenience in mounting and replacement, capability of stably controlling and adjusting air speed and air direction in the roll mill and the like.
Description
Technical field
The present invention relates to a kind of Polygonal adjustable air ring, especially relate to a kind of Polygonal adjustable air ring for ring-roller mill.
Background technology
Current, the raw material that roller mill is used for pulverizing cement industry in a large number, grog, raw coal, the slag of the raw coal that thermoelectricity industry is used and steel plant's blast furnace etc.Grinding is the part process in roller mill work with selecting powder, and the raw material that grinding is about to certain particle diameter grinds to form more tiny powdered granule, and the satisfactory finished product that selects powder to be about in the powdered granule after grinding is separated.In these two processes, the place that hot blast is called vane from milling zone peripheral side enters space and powder-separating area in mill, completes the powder process of selecting after the powdered granule after grinding is risen to certain altitude by powder selection device.Hot blast has important impact by the wind speed and direction of vane to grinding and grinding efficiency.
There is the roller mill that plurality of specifications is different from structure in the current whole world, and the vane structure comprising is all different.Related documents also discloses the Structure and characteristics of the vane of various roller mills outfits, but this class vane all can not well be controlled and regulate wind speed and direction.Some vane regulatory functions are too simple, and the air quantity that causes grinding system to be equipped with is excessive and cause the waste of the energy, and grinding and grinding efficiency not high; Some vane structures are too heavy, and it is all very inconvenient to manufacture and install.
Summary of the invention
Object of the present invention be exactly in order to overcome the defect that above-mentioned prior art exists, provide a kind of simple in structure, install and change the Polygonal adjustable air ring for ring-roller mill that wind speed and direction convenient, in can pair roller type grinding machine carries out stable control and adjusting.
Object of the present invention can be achieved through the following technical solutions: a kind of Polygonal adjustable air ring for ring-roller mill, this Polygonal adjustable air ring is arranged in the annular space forming between grinding machine shell and mill, it is characterized in that, described Polygonal adjustable air ring comprises lower blinds vane, upper guide ring, described lower blinds vane is around mill, and weld with grinding machine shell, this lower blinds vane is divided into 36～48 identical parts, each part is an independently air outlet, described air outlet is mainly comprised of lower blinds vane outer side panel and a pair of lower blinds vane oriented plate, described lower blinds vane outer side panel is connected with grinding machine shell, and with air outlet end face with the angle of 70 °～85 ° towards mill axioversion, described a pair of lower blinds vane oriented plate is parallel to be connected on lower blinds vane outer side panel, and tilt with the angle tide mill disc radial of air outlet end face with 55 °～70 °, described upper guide ring is looped around mill surrounding, on this, minute quantity such as guide ring and lower blinds vane etc. divide quantity identical, the each several part of upper guide ring decile is connected by bolt one by one with the part after lower blinds vane decile.
Described lower blinds vane outer side panel is connected with grinding machine shell, and with air outlet end face with the optimized angle of 75 °～80 ° towards mill axioversion.
Described parallel being connected on lower blinds vane outer side panel of lower blinds vane oriented plate, and tilt with the optimized angle tide mill disc radial of air outlet end face with 60 °～63 °.
This vane also comprises insertion plate, and described insertion plate is arranged in a plurality of air outlets, and is connected with two lower blinds oriented plates.
This vane also comprises cover plate, and described cover plate is arranged on the upper end of a plurality of air outlets, and air outlet is sealed.
Described cover plate is polygon plane plate.
Described lower blinds vane and upper guide ring adopt high-abrasive material.
Described high-abrasive material is industrial build-up wear-resistant plate.
Compared with prior art, the present invention has the following advantages:
1, vane is simple in structure, makes easily, and pure rivet welding structure, does not need machine tooling equipment to carry out processing and fabricating, and whole vane is divided into a plurality of identical parts, easy for installation, time and labour saving.Install into the i.e. approximate circular ring structure of a just polygon structure.
2, whether vane regulates wind speed and direction stable, be not subject to the restriction of situation such as of mill feeding amount and grinding machine working stability, so just can better control the grinding of grinding machine and select powder process.
3, change conveniently, due to the annular space of vane between mill and grinding machine shell, it does not all have and its miscellaneous part being associated up and down, and dismounting and change is just easily quick like this, can not cause the long-time shutdown of equipment.
Accompanying drawing explanation
Fig. 1 is ring-roller mill structural representation;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the A-A view of Fig. 2;
Fig. 4 is that the B of Fig. 2 is to structural representation.
In Fig. 1,1 is that mill, 2 is that grinding machine shell, 3 is that Polygonal adjustable air ring, 4 is that rotor, 5 is that grinding roller, 6 is that reductor, 7 is that system hot blast import, 8 is that product outlet, 9 is raw material feeding mouth;
In Fig. 2,21 is that lower blinds vane, 22 is that lower blinds vane oriented plate, 23 is that lower blinds vane outer side panel, 24 is that upper guide ring, 25 is cover plate for inserting plate, 26;
The 10 independent air intake mouths that are vane in Fig. 4.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in Figure 1, raw material enters the milling zone being formed by mill 1 and grinding roller 5 after being entered to grind by raw material feeding mouth 9 and grinds, mill 1 is done certain speed by reductor 6 drives and is rotated around center, 1 space that has an annular of mill of static grinding machine shell 2 and rotation, the hot blast that the system hot blast import 7 bottom grinding machine enters enters in mill by this annular space.Polygonal adjustable air ring 3 is arranged in this annular space, and annular space is separated into a plurality of independently air inlets 10, hot blast just enters with corresponding speed and direction the rotor 4 that drives polished thin feed particles to enter powder selection device behind grinding district by Polygonal adjustable air ring 3 and carries out the separated of large or fine granule like this, and finished product is derived grinding machines by product outlet 8.
For a Polygonal adjustable air ring for ring-roller mill, it comprises:
The radially wind direction of lower blinds vane 21 regulates, and adopts 80 lower blinds vane oriented plates 22 that distribute in lower blinds vane 21 piecemeals such as grade.Axially wind direction regulates, and adopts, at lower blinds vane 21 piecemeals such as grade, 40 lower blinds outer side panels 23 is set.Lower blinds vane 21 is stereoeffects.
The single aliquot of upper guide ring 24 is planar structures, and it has a certain degree on same or with it with lower blinds vane outer side panel 23 after installing, and continues to play and axially leads wind action.Insert plate 25 and be not mounted in each lower blinds vane 21, but reasonably arrange according to the position of abrasive areas.Inserting plate 25 is stereoeffects.Cover plate 26 is polygon plane plates, is also to carry out reasonable Arrangement according to the position of abrasive areas.Lower blinds vane 21 and upper guide ring 24 will have anti-wear performance, because hot blast can drive particle dress material to cause and directly wash away and produce wearing and tearing it.For this reason, can consider high-abrasive material making in material type selecting, as industrial build-up wear-resistant plate, can guarantee that like this it can continuous operation regular hour and need not frequently change and cause shutdown.
Polygonal adjustable air ring 3 is scattered in a plurality of independent air outlets by the annular space of 1, grinding machine shell 2 and mill, lower blinds vane oriented plate 22 and air outlet end face in each air outlet are angled, it is radial skew, after deliberation with practice, angle is ideal at 60 °～63 °, each air port can allow form high-speed rotational wind and have certain upstroke slope from the hot blast wherein passing through and form eddy flow like this, after raw material grinding, by mill 1 rotary centrifugal force, thrown away and rotate in mill with this eddy flow wind, thick material can enter feed system with fresh feed and enters in mill grinding again because gravity each air port by Polygonal adjustable air ring 3 falls into after dreg removing system again, wherein thin material rises to powder-separating area with swirling eddy and is selected powder.The arc surface of mill 1 side is vertical, and grinding machine shell 2 is also vertical, and hot blast will be along certain angle deflection mill 1 pivot after by vane 3, and axioversion, so just better drives material to rise to territory, powder-separating area.By lower blinds vane outer side panel 23 is imported and exported to the end face effects that also shape has a certain degree and can reach such near a side of grinding machine shell 2 and vane 3, angle be generally be 75 °～80 ° the most desirable.Upper guide ring 24 is positioned on lower blinds vane outer side panel 23, and according to the grinding machine of different size, upper guide ring 24 and lower blinds vane outer side panel 23 are at same plane or have a certain degree.Upper guide ring 24 continues to play the guide effect of the ascending air to passing through from lower blinds vane 21 outlets, and airflow direction selects powder along certain angle deflection mill 1 pivot with the rotary area that drives material better to enter rotor 4.The size of the end face outlet area of lower blinds vane 21 can be controlled the speed of hot blast, because the air quantity of grinding system is certain, the effective area that calculates air port during design is just easy to control the speed of air outlet.The speed that hot blast drive granule materials rises is to grinding and select powder all can have a huge impact, suitable speed can take away rapidly the fine granular materials on mill 1 and allow mill enter the operation of follow-up grinding, and the speed that enters powder selection device rotor 4 rotary areas also can have influence on grinding efficiency, insert plate 25 for regulating the speed of each air outlet.Insert plate 25 and be arranged between each lower blinds vane oriented plate 22, by changing every installation location dimension of inserting plate 25, just can control the size of each air outlet area.Because roller mill carries out grinding work by mill 1 and grinding roller 5, according to grinding machine, grind the kind of raw material and the size of grinding machine size, the quantity of grinding roller is divided into 2,3,4,6 equal-specifications.Mounting arrangements and each grinding roller 5 of inserting plate 25 are associated.Insert plate 25 and can regulate the wind speed of each grinding roller 5 vane 3 outlet around to reach the Rational Arrangement of the speed of whole annular vane outlet, with corresponding with the abrasive areas of grinding roller 5 on mill 1, be beneficial to grinding and select powder.Cover plate 26 be arranged on 21 outlets of lower blinds vane just above, be about to some air outlet of vane and shut completely, envelope residence does not allow hot blast pass through from it, the installation site of cover plate 26 is also associated with grinding roller 5.Desirable two effects of cover plate 26, because hot blast drives powdered granule material high-speed rising meeting to cause and wash away and cause improper wearing and tearing some position of grinding roller 5, the correct position installation cover plate 26 of the vane 3 grinding roller 5 below just can avoid causing the wearing and tearing to grinding roller 5 parts such as grade.In addition, the installation of cover plate 26 also can affect the gross area of whole vane 3 outlets and play the effect that regulates wind speed.
Claims (8)
1. the Polygonal adjustable air ring for ring-roller mill, this Polygonal adjustable air ring is arranged in the annular space forming between grinding machine shell and mill, it is characterized in that, described Polygonal adjustable air ring comprises lower blinds vane, upper guide ring, described lower blinds vane is around mill, and weld with grinding machine shell, this lower blinds vane is divided into 36～48 identical parts, each part is an independently air outlet, described air outlet is mainly comprised of lower blinds vane outer side panel and a pair of lower blinds vane oriented plate, described lower blinds vane outer side panel is connected with grinding machine shell, and with air outlet end face with the angle of 70 °～85 ° towards mill axioversion, described a pair of lower blinds vane oriented plate is parallel to be connected on lower blinds vane outer side panel, and tilt with the angle tide mill disc radial of air outlet end face with 55 °～70 °, described upper guide ring is looped around mill surrounding, and be divided into a plurality of same sections, on this, minute quantity such as guide ring and lower blinds vane etc. divide quantity identical, the each several part of upper guide ring decile is connected by bolt one by one with the part after lower blinds vane decile.
2. a kind of Polygonal adjustable air ring for ring-roller mill according to claim 1, is characterized in that, described lower blinds vane outer side panel is connected with grinding machine shell, and with air outlet end face with the angle of 75 °～80 ° towards mill axioversion.
3. a kind of Polygonal adjustable air ring for ring-roller mill according to claim 1, it is characterized in that, described parallel being connected on lower blinds vane outer side panel of lower blinds vane oriented plate, and tilt with the angle tide mill disc radial of air outlet end face with 60 °～63 °.
4. a kind of Polygonal adjustable air ring for ring-roller mill according to claim 1, is characterized in that, this vane also comprises insertion plate, and described insertion plate is arranged in a plurality of air outlets, and is connected with two lower blinds oriented plates.
5. a kind of Polygonal adjustable air ring for ring-roller mill according to claim 1, is characterized in that, this vane also comprises cover plate, and described cover plate is arranged on the upper end of a plurality of air outlets, and air outlet is sealed.
6. a kind of Polygonal adjustable air ring for ring-roller mill according to claim 5, is characterized in that, described cover plate is polygon plane plate.
7. a kind of Polygonal adjustable air ring for ring-roller mill according to claim 1, is characterized in that, described lower blinds vane and upper guide ring adopt high-abrasive material.
8. a kind of Polygonal adjustable air ring for ring-roller mill according to claim 7, is characterized in that, described high-abrasive material is industrial build-up wear-resistant plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010298691.XA CN102430453B (en) | 2010-09-29 | 2010-09-29 | Polygonal adjustable air ring for roll mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010298691.XA CN102430453B (en) | 2010-09-29 | 2010-09-29 | Polygonal adjustable air ring for roll mill |
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| Publication Number | Publication Date |
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| CN102430453A CN102430453A (en) | 2012-05-02 |
| CN102430453B true CN102430453B (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010298691.XA Active CN102430453B (en) | 2010-09-29 | 2010-09-29 | Polygonal adjustable air ring for roll mill |
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| CN103203264B (en) * | 2013-02-07 | 2015-07-01 | 洛阳矿山机械工程设计研究院有限责任公司 | Airflow transportation method for vertical roller mill airflow device of cement raw material slag |
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| CN106000615A (en) * | 2016-06-30 | 2016-10-12 | 湖州丰盛新材料有限公司 | Hot air circulation powder selecting device with adjustable wind speed |
| CN106216032B (en) * | 2016-08-25 | 2024-02-09 | 莱歇研磨机械制造(上海)有限公司 | Improved structure of roller mill wind ring screening material |
| CN108940558A (en) * | 2018-01-30 | 2018-12-07 | 上海意丰机电科技开发有限公司 | A kind of dynamic and static vane |
| CN109012888A (en) * | 2018-10-26 | 2018-12-18 | 南京中材粉体工程科技有限公司 | A kind of roller type vertical mill |
| CN114192240A (en) * | 2021-12-03 | 2022-03-18 | 江苏羚羊建材科技有限公司 | Adjustable angle jetting ring and superfine steel slag mill |
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| CN201040259Y (en) * | 2007-05-09 | 2008-03-26 | 唐山冀东水泥股份有限公司 | Adjustable vane for cement vertical mill |
| CN201534101U (en) * | 2009-10-28 | 2010-07-28 | 石福军 | Bowel-type medium speed coal mill |
| CN201807409U (en) * | 2010-09-29 | 2011-04-27 | 莱歇研磨机械制造(上海)有限公司 | Polygonal adjustable air ring for roller type mill |
-
2010
- 2010-09-29 CN CN201010298691.XA patent/CN102430453B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87216030U (en) * | 1987-12-01 | 1988-10-12 | 曲靖地区机械厂 | New-type vertical mill |
| CN1036341A (en) * | 1988-12-29 | 1989-10-18 | 昆明工学院 | The volume increase method of vertical grinder system |
| CN201002030Y (en) * | 2007-02-03 | 2008-01-09 | 郑义 | Thermo-power generating plant middle-speed grinding dynamic air ring |
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| CN102430453A (en) | 2012-05-02 |
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