CN106040365A - Hot air cyclic powder selecting device with reverse air blowing sealing structure - Google Patents
Hot air cyclic powder selecting device with reverse air blowing sealing structure Download PDFInfo
- Publication number
- CN106040365A CN106040365A CN201610533276.5A CN201610533276A CN106040365A CN 106040365 A CN106040365 A CN 106040365A CN 201610533276 A CN201610533276 A CN 201610533276A CN 106040365 A CN106040365 A CN 106040365A
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- China
- Prior art keywords
- cage
- roller mill
- blower
- hot air
- hot
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/007—Mills with rollers pressed against a rotary horizontal disc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/24—Passing gas through crushing or disintegrating zone
- B02C23/34—Passing gas through crushing or disintegrating zone gas being recirculated to crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C2015/002—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a hot air cyclic powder selecting device with a reverse air blowing sealing structure. The hot air cyclic powder selecting device with the reverse air blowing sealing structure comprises a hot air cyclic powder selecting device body and the reverse air blowing sealing structure of the powder selecting device body. According to the hot air cyclic powder selecting device with the reverse air blowing sealing structure, after dust collection of a dust collector, hot air is transferred into a hot air pipe again through a draught fan to be cyclically utilized, and therefore the heat energy utilizing rate can be increased; meanwhile, it can be prevented that direct emission of the hot air affects the surrounding environment, sealing is performed through an air blowing pipe with an air blowing port, and accordingly materials below the powder selecting device body cannot pass through a gap between a rotating cage and the inner wall of a roller mill; and due to the sealing manner, the sealing effect is good, and the rotation of the rotating cage is not affected at all.
Description
Technical field
The present invention relates to a kind of hot air circulation powder selection device with back-blowing sealing structure.
Background technology
Vertical roll grinder is called for short Vertical Mill, a kind of for cement slurry, clinker, slag and the processing of cinder grinding, has
The feature that simple in construction, manufacturing cost and use cost are low.Including body, millstone device and actuating device, body and millstone device it
Between be provided with the adjective-centre structure determining the centre of gyration, the bottom of millstone device is fixedly installed circular guideway, and millstone device passes through
Circular guideway is rotatable to be supported on body, and millstone device is connected with drive.Owing to actuating device is not subject to mill
Weight and the contour axial load of pressure of milling, therefore actuating device can use general reductor, thus it is tight to have structure configuration
Gather, the advantage of reliable operation, can shorten stop time consuming, reduce equipment operation and maintenance cost.
Vertical roll grinder operation principle: motor by reductor band movable grinding disc rotate, material through lock feeding device from entering
Material mouth falls in mill central authorities, and hot blast enters in mill from air inlet simultaneously.Along with mill rotate, material under centrifugal action, to
Mill edge moves, and on mill, cannelure is rolled by grinding roller and pulverizes, crushing rear material at mill edge by vane
High velocity air takes up, and bulky grain falls directly on mill grinding again, and in air-flow, material is through Upper separator, turns rotating
Under son effect, coarse powder falls mill grinding again from cone bucket, and qualified fine powder is tripped out mill with air-flow one, collected by dust arrester installation,
It is product, is being oven-dried in thermal current contact process containing moisture material, by regulation hot blast temperature, DIFFERENT WET can be met
Degree material requirement, reaches required product moisture.By adjusting separator, can reach fineness degree needed for different product.
After material is ground by roller mill, need to select the product of suitable thickness to enter hot-blast outlet by powder selection device and go out
Material, owing to the inwall rotating cage top outer and roller mill of powder selection device exists certain gap all the time, material is at hot blast
Hot-blast outlet can be entered by this gap under Dai Donging, thus avoided rotate cage select powder step, and then the matter selecting powder can be affected
Amount.
Absorb through selecting the material of powder to need by dust-precipitator, after dust-precipitator absorbs, by the heat discharged in roller mill
Wind also has bigger heat, if this heat is directly discharged in air, not only wastes a part of heat energy, also can pollute simultaneously
Air, long-time discharge affects the environment of periphery.
Summary of the invention
For the problems referred to above, the invention provides a kind of hot air circulation powder selection device with back-blowing sealing structure, logical
Cross and back-blowing structure is set on the gap rotating cage and roller mill inwall, thus prevent material to be directly entered hot blast by this gap
Outlet discharging, be effectively increased rotation cage selects opaque amount, by the hot blast after dust-precipitator gathers dust is circulated utilization, from
And improve heat utilization rate, prevent heat energy from environment being had adverse effect on.
The technical solution used in the present invention is:
A kind of hot air circulation powder selection device with back-blowing sealing structure, fills including the powder that selects being arranged in roller mill
Put, warm-air pipe outside mill bottom roller mill, roller mill top hot-blast outlet above powder selection device, described hot blast
Outlet is connected with a dust-precipitator, and the gas outlet of described dust-precipitator is connected with warm-air pipe by pipeline, described dust-precipitator and hot blast
Being provided with a blower fan that hot blast blows to warm-air pipe from dust-precipitator between pipe, described powder selection device includes rotating cage, and
Fixing rotates inner cone coaxial with rotating cage below cage, and the diameter of one end that described inner cone is thicker is more than rotating the straight of cage
Footpath, and the thicker one end of inner cone upward, thinner one end down, the rotary shaft in the vertical direction of described rotation cage, described
Roller mill rotate cage top outer and the inwall of roller mill between interstitial site on be fixed with a circle blower, described in blow
Down, the air inlet of described blower and an air pump are connected the blowing mouth of airduct.
After dust-precipitator gathers dust, hot blast again proceeds to warm-air pipe by blower fan and is circulated utilization such that it is able to improve
The utilization rate of heat energy, be prevented from its direct discharge affects surrounding enviroment simultaneously, carries out close by the blower with blowing mouth
Envelope so that the material below powder selection device cannot pass from the gap rotated between cage and roller mill inwall, such sealing side
Formula not only good sealing effect, and do not interfere with the rotation rotating cage completely.
As preferably, described rotation cage includes upper ring and a lower ring, and supports the multiple supports connecting upper ring with lower ring
Bar, the middle part of described rotation cage is up/down perforation, and described inner cone is the hollow round table waiting wall thickness, described hollow round table upper
Under through, the bottom of described inner cone is fixedly and coaxially connected the torus of a up/down perforation, and described blower is positioned at
The top of ring, described blower is fixed together with the inwall of roller mill, and the external diameter of described blower is more than upper ring and roller mill
Spacing between machine inwall, the diameter of described blowing eye is not more than the spacing rotated between cage top outer and roller mill inwall.
Material is after grinding, and qualified product relies on hot blast to be blown to rotate the cambered surface of cage along the outer wall of inner cone
Outward, when rotating cage and rotating, product is upwardly into hot-blast outlet, and enters in dust-precipitator through the gap support bar, logical
Crossing the rotating speed controlling to rotate cage, can select the product of different thicknesses degree, rotating speed is the fastest, and the product of selection is the thinnest, and rotating speed is the slowest,
The product selected is the thickest.
Rotating cage when rotated, the material of suitable size is entered by the gap between support bar and rotates cage, and is blown to
Hot-blast outlet, the underproof material of some of them fineness degree is due to the effect of self gravitation.Inner cone is fallen into from the lower section rotating cage
In body, and dropped by torus and proceed grinding, blower external diameter more than the spacing between upper ring and roller mill inwall, from
And ensure that the gap between top outer and the inwall of roller mill of rotation cage can be fully sealed by blower, thus promote close
Envelope effect, uniform blowing eye uniform blow gas can seal downwards, improve the stability of sealing, reach without dead angle
Purpose.
As preferably, the top of described roller mill is installed with one and drives the rotation cage motor rotating cage rotation.
Beneficial effect of the present invention has:
After dust-precipitator gathers dust, hot blast again proceeds to warm-air pipe by blower fan and is circulated utilization such that it is able to improve
The utilization rate of heat energy, be prevented from its direct discharge affects surrounding enviroment simultaneously, carries out close by the blower with blowing mouth
Envelope so that the material below powder selection device cannot pass from the gap rotated between cage and roller mill inwall, such sealing side
Formula not only good sealing effect, and do not interfere with the rotation rotating cage completely.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the side structure schematic diagram of Fig. 1；
Fig. 3 is the structural representation of clamping rings；
In figure: 1. roller mill, 2. mill, 3. warm-air pipe, 4. hot-blast outlet, 5. rotate cage, 6. inner cone, 7. blower,
8. clamping rings, 9. vent, 10. adjustable plate, 11. grinding rollers, 12. cranks, 13. oil hydraulic cylinders, 14. knock-pins, 15. oil inlet pipes
Road, 16. nitrogen pipelines, 17. elevated pressure nitrogen air bag groups, 18. low pressure nitrogen air bag groups, 19. low pressure oil inlet valves, 20. high pressure inlet valves
Door, 21. nitrogen valves, 22. rotating shafts, ring on 23., 24. times rings, 25. support bars, 26. torus, 27. pins, 28. pin holes,
29. latch body, 30. compression springs, 31. rotate cage motor.
Detailed description of the invention
Below by specific embodiment and combine accompanying drawing the present invention is described in further detail.
Embodiment 1
As shown in Figure 1, 2, a kind of hot air circulation powder selection device with back-blowing sealing structure, including being arranged on roller mill
Powder selection device in 1, warm-air pipe 3 outside mill 2 bottom roller mill 1, roller mill 1 top hot blast above powder selection device
Outlet 4, described hot-blast outlet 4 is connected with a dust-precipitator, and the gas outlet of described dust-precipitator is connected with warm-air pipe 3 by pipeline,
Being provided with a blower fan that hot blast blows to warm-air pipe 3 from dust-precipitator between described dust-precipitator and warm-air pipe 3, described selects powder
Device includes rotating inner cone 6 coaxial with rotating cage 5 below cage 5, and fixing rotation cage 5, and described inner cone 6 is thicker
The diameter of one end more than rotating the diameter of cage 5, and the thicker one end of inner cone upward, thinner one end down, described rotation cage 5
Rotary shaft in the vertical direction, described roller mill 1 rotate cage 5 top outer and the inwall of roller mill 1 between gap
Be fixed with a circle blower 7 on position, the blowing mouth of described blower 7 down, the air inlet of described blower 7 and an air pump phase
Even.
Described rotation cage 5 includes ring 23 and lower ring 24, and supports the multiple supports connecting upper ring 23 with lower ring 24
Bar 25, the middle part of described rotation cage 5 is up/down perforation, and described inner cone 6 is the hollow round table waiting wall thickness, described hollow round table
Up/down perforation, the bottom of described inner cone 6 is fixedly and coaxially connected the torus 26 of a up/down perforation, described blower
7 tops being positioned at ring 23, described blower 7 is fixed together with the inwall of roller mill 1, and the external diameter of described blower 7 is big
Spacing between upper ring 23 and roller mill 1 inwall, described blowing mouth is to be distributed on the circle blowing eye bottom blower 7,
The diameter of described blowing eye is not more than the spacing rotated between cage 5 top outer and roller mill 1 inwall.
The top of described roller mill 1 is installed with one and drives the rotation cage motor 31 rotating cage 5 rotation.
Embodiment 2
As shown in Figure 1, 2, 3, the grinding roller pressure adjustable hot air circulation roll mill apparatus that a kind of back-blowing seals, its feature
Being, including the powder selection device being arranged in roller mill 1, warm-air pipe 3 outside mill 2 bottom roller mill 1, roller mill 1 pushes up
Portion's hot-blast outlet 4 above powder selection device, described hot-blast outlet 4 is connected with a dust-precipitator, the gas outlet of described dust-precipitator
It is connected with warm-air pipe 3 by pipeline, is provided with one between described dust-precipitator and warm-air pipe 3 and hot blast is blowed to heat from dust-precipitator
The blower fan of airduct 3, described powder selection device includes rotating cage 5, and fixing rotate below cage 5 with rotate coaxial interior of cage 5
Cone 6, the diameter of one end that described inner cone 6 is thicker is more than rotating the diameter of cage 5, and the thicker one end of inner cone 6 is upward, relatively
Thin one end down, the rotary shaft in the vertical direction of described rotation cage 5, described roller mill 1 rotate cage 5 top outer with
Be fixed with a circle blower 7 in interstitial site between the inwall of roller mill 1, the blowing mouth of described blower 7 down, described in blow
The air inlet of airduct 7 and an air pump are connected, and in roller mill 1, circle fixed by the circle that is provided with between mill 2 and roller mill 1 inwall
Ring 8, the warm-air pipe 4 of described roller mill 1 is positioned at the lower section of clamping rings 8, the outside cambered surface of described clamping rings 8 and roller mill 1
Inwall fit fixing, leave gap between inner side cambered surface and the outside cambered surface of mill 2 of described clamping rings 8, described
Offer the most uniform multiple vent 9 on clamping rings 8, described vent 9 is fixed with and rotates with clamping rings 8
The adjustable plate 10 connected；Also including grinding roller 11 and the crank 12 driving grinding roller 11 to rotate, described crank 12 is relative to powder
The other end of grinding roller 11 and the knock-pin 14 of oil hydraulic cylinder 13 front end are connected, and described oil hydraulic cylinder 13 is by two inflow pipelines 15
Gas outlet with two groups of nitrogen capsules is connected respectively, and the gas outlet of described two groups of nitrogen capsules is connected by nitrogen pipeline 16, institute
The two groups of nitrogen capsules stated are the different elevated pressure nitrogen air bag group 17 of pressure and low pressure nitrogen air bag group 18, described with elevated pressure nitrogen air bag group 17
A high pressure oil inlet valve 20, the described oil-feed being connected with low pressure nitrogen air bag group 18 it is in series with on the inflow pipeline 15 being connected
Being in series with a low pressure oil inlet valve 19 on pipeline 15, described nitrogen pipeline 16 is in series with a nitrogen valve 21.
Described vent 9 body ringwise, the radian of described annular solid is 10-100 °, the shape of described adjustable plate 10 with
Vent 9 matches, and described adjustable plate 10 is radially fixed with a rotating shaft 22, on described clamping rings 8 at clamping rings 8
Offering the shaft hole matched with rotating shaft 22 a pair, described blowing mouth is to be distributed on the circle blowing eye bottom blower 7,
The diameter of described blowing eye is not more than the spacing rotated between cage 5 top outer and roller mill 1 inwall, described elevated pressure nitrogen air bag
Group 17 includes that the elevated pressure nitrogen air bag that two gas outlets are connected, described low pressure nitrogen air bag group 18 include that two gas outlets are connected
Low pressure nitrogen air bag.
Described rotation cage 5 includes ring 23 and lower ring 24, and supports the multiple supports connecting upper ring 23 with lower ring 24
Bar 25, the middle part of described rotation cage 5 is up/down perforation, and described inner cone 6 is the hollow round table waiting wall thickness, described hollow round table
Up/down perforation, the bottom of described inner cone 6 is fixedly and coaxially connected the torus 26 of a up/down perforation, described vent
One end of 9 inherent regulation plates 10 is fixed with a pin 27, described pin 27 at clamping rings 8 radially, described pin 27
Minimum point is less than the peak of rotating shaft 22, and described clamping rings 8 has multiple pin hole 28 in rotating shaft 22 opened above, described
Pin hole 28 matches with a latch, and described elevated pressure nitrogen air bag and the gas outlet of low pressure nitrogen air bag are the most down.
Described latch includes latch body 29, and is fixed on the compression spring 30 of latch body 29 one end, described pressure
One end of contracting spring 30 is fixing with latch body 29 to be connected, and the other end is towards the end being close with latch body 29, described slotting
The length of pin body 29 is less than clamping rings 8 length diametrically, more than vent 9 length diametrically, and described blows
Airduct 7 is positioned at the top of ring 23, and described blower 7 is fixed together with the inwall of roller mill 1, outside described blower 7
Footpath is more than the spacing between upper ring 23 and roller mill 1 inwall, and the top of described roller mill 1 is installed with one and drives rotation cage
The 5 rotation cage motors 31 rotated.
Claims (3)
1. a hot air circulation powder selection device with back-blowing sealing structure, it is characterised in that include being arranged on roller mill (1)
Interior powder selection device, roller mill (1) bottom warm-air pipe (3) in mill (2) outside, roller mill (1) top is on powder selection device
The hot-blast outlet (4) of side, described hot-blast outlet (4) is connected with a dust-precipitator, the gas outlet of described dust-precipitator by pipeline and
Warm-air pipe (3) is connected, and is provided with one from dust-precipitator, hot blast is blowed to warm-air pipe between described dust-precipitator and warm-air pipe (3)
(3) blower fan, described powder selection device includes rotating below cage (5), and fixing rotation cage (5) coaxial with rotation cage (5)
Inner cone (6), the diameter of one end that described inner cone (6) is thicker more than rotate cage (5) diameter, and inner cone thicker one
End upward, thinner one end down, the rotary shaft in the vertical direction of described rotation cage (5), described roller mill (1) is rotating cage
(5) it is fixed with a circle blower (7), described blower in the interstitial site between top outer and the inwall of roller mill (1)
(7) down, the air inlet of described blower (7) and an air pump are connected blowing mouth.
A kind of hot air circulation powder selection device with back-blowing sealing structure the most according to claim 1, it is characterised in that
Described rotation cage (5) includes ring (23) and lower ring (24), and supports multiple of the upper ring (23) of connection and lower ring (24)
Strut (25), the middle part of described rotation cage (5) is up/down perforation, and described inner cone (6) is the hollow round table waiting wall thickness, described
The up/down perforation of hollow round table, the bottom of described inner cone (6) is fixedly and coaxially connected the torus (26) of a up/down perforation,
Described blower (7) is positioned at the top of ring (23), and described blower (7) is fixed together with the inwall of roller mill (1),
The external diameter of described blower (7) is more than the spacing between upper ring (23) and roller mill (1) inwall, and described blowing mouth is for being distributed on
One circle blowing eye of blower (7) bottom, the diameter of described blowing eye no more than rotates cage (5) top outer and roller mill (1)
Spacing between inwall.
A kind of hot air circulation powder selection device with back-blowing sealing structure the most according to claim 1 and 2, its feature exists
In, the top of described roller mill (1) is installed with rotation cage motor (31) driving rotation cage (5) to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610533276.5A CN106040365A (en) | 2016-06-30 | 2016-06-30 | Hot air cyclic powder selecting device with reverse air blowing sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610533276.5A CN106040365A (en) | 2016-06-30 | 2016-06-30 | Hot air cyclic powder selecting device with reverse air blowing sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106040365A true CN106040365A (en) | 2016-10-26 |
Family
ID=57185661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610533276.5A Pending CN106040365A (en) | 2016-06-30 | 2016-06-30 | Hot air cyclic powder selecting device with reverse air blowing sealing structure |
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| Country | Link |
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| CN (1) | CN106040365A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1747819A4 (en) * | 2004-05-13 | 2010-07-28 | Babcock Hitachi Kk | Classifier, vertical crusher having the classifier, and coal fired boiler apparatus having the vertical crusher |
| CN201543468U (en) * | 2009-06-26 | 2010-08-11 | 丁明明 | Circulating enclosed vertical pulverizing device |
| CN103406186A (en) * | 2013-08-09 | 2013-11-27 | 成都建筑材料工业设计研究院有限公司 | Technology and device for baking and grinding high-moisture chalk through vertical mill |
| CN203853154U (en) * | 2014-04-03 | 2014-10-01 | 绵阳西金科技发展有限公司 | Efficient energy-saving vertical mill classifier |
| CN204933651U (en) * | 2015-08-21 | 2016-01-06 | 南京凯盛国际工程有限公司 | Novel vertical mill device |
| CN206008868U (en) * | 2016-06-30 | 2017-03-15 | 湖州丰盛新材料有限公司 | A kind of hot air circulation powder selection device with back-blowing sealing structure |
-
2016
- 2016-06-30 CN CN201610533276.5A patent/CN106040365A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1747819A4 (en) * | 2004-05-13 | 2010-07-28 | Babcock Hitachi Kk | Classifier, vertical crusher having the classifier, and coal fired boiler apparatus having the vertical crusher |
| CN201543468U (en) * | 2009-06-26 | 2010-08-11 | 丁明明 | Circulating enclosed vertical pulverizing device |
| CN103406186A (en) * | 2013-08-09 | 2013-11-27 | 成都建筑材料工业设计研究院有限公司 | Technology and device for baking and grinding high-moisture chalk through vertical mill |
| CN203853154U (en) * | 2014-04-03 | 2014-10-01 | 绵阳西金科技发展有限公司 | Efficient energy-saving vertical mill classifier |
| CN204933651U (en) * | 2015-08-21 | 2016-01-06 | 南京凯盛国际工程有限公司 | Novel vertical mill device |
| CN206008868U (en) * | 2016-06-30 | 2017-03-15 | 湖州丰盛新材料有限公司 | A kind of hot air circulation powder selection device with back-blowing sealing structure |
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Application publication date: 20161026 |
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| RJ01 | Rejection of invention patent application after publication |