CN203030332U - Vertical roller mill for milling outer circulation slag - Google Patents
Vertical roller mill for milling outer circulation slag Download PDFInfo
- Publication number
- CN203030332U CN203030332U CN 201220418226 CN201220418226U CN203030332U CN 203030332 U CN203030332 U CN 203030332U CN 201220418226 CN201220418226 CN 201220418226 CN 201220418226 U CN201220418226 U CN 201220418226U CN 203030332 U CN203030332 U CN 203030332U
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- Prior art keywords
- mill
- outer circulation
- roll grinder
- vertical roll
- grinding roller
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- Expired - Fee Related
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- 239000002893 slag Substances 0.000 title claims abstract description 25
- 238000003801 milling Methods 0.000 title abstract 5
- 239000000843 powder Substances 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000007664 blowing Methods 0.000 claims abstract description 3
- 238000000227 grinding Methods 0.000 claims description 86
- 238000007599 discharging Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000009183 running Effects 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000007780 powder milling Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 21
- 239000002245 particle Substances 0.000 description 6
- 235000012054 meals Nutrition 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The utility model relates to a vertical roller mill for milling outer circulation slag. The vertical roller mill comprises a body, wherein powder separation mechanism consisting of a stator and a rotor is arranged at the upper part of the body and connected with a discharge port; a feed pipe located at the lower part of the powder separation mechanism is arranged at the side part of the body; a discharge pipe corresponding to the powder separation mechanism is arranged at the lower part of the body; a roller milling mechanism corresponding to the feed pipe is arranged at the lower part of the discharge pipe; a blowing device is arranged on the roller milling mechanism; and a dump bucket pipe is arranged at the bottom of the body and connected with the feed pipe by a bucket elevator. The vertical roller mill for milling the outer circulation slag is simple, convenient and quick to mount and maintain, and greatly improves the powder milling efficiency; the service life of the vertical roller mill is greatly prolonged; and the running rate of the vertical roller mill is increased greatly.
Description
Technical field
The utility model relates to a kind of mill outer circulation slag vertical roll grinder field.
Background technology
Vertical roll grinder integrates grinding, oven dry, classification (selecting powder) and conveying function, have the efficient height, energy consumption is little, abrasion is low, running rate is high, compact conformation, occupied ground and the space is little, noise is low, product fineness is easy to remarkable advantages such as adjusting, is used for grinding and the superfine grinding of industry materials such as cement (raw material, coal, grog), metallurgical slag, material, chemical industry more and more widely.
Domestic present Vertical Mill exist the grinding mechanism life-span short, mill efficiency is low, be difficult to maximize, the feed system poor air-tightness, select the powder system grinding efficiency low, granularity is difficult to regulate, shortcomings such as the low maintenance of running rate difficulty, make homemade Vertical Mill performance compare with external advanced product and have a long way to go that particularly for the clinker of high rigidity, the grinding of slag, domestic Vertical Mill is difficult to adapt to.Along with high thin and tall popularization of mixing technology in recent years, the former blast-furnace cinder that is used as waste material adds in the cement as cement mixture behind superfine grinding, not only turn waste into wealth and realize the comprehensive utilization of resource, and improved the performance of cement, but the irony that contains in the slag has influenced service life and the running rate of grinding machine to the grinding mechanism serious wear of grinding machine.
The utility model content
The utility model is at above-mentioned defective, and purpose is to provide a kind of installation, maintenance simple and convenient, a kind of mill outer circulation slag vertical roll grinder that mill efficiency, service life and running rate improve greatly.
The technical solution adopted in the utility model is for this reason: comprise body, body upper is provided with the powder concentrator structure of being made up of stator, rotor, the powder concentrator structure is connected with discharging opening, the body sidepiece is provided with the feed pipe that is in powder concentrator structure bottom, underpart is provided with and the corresponding discharge nozzle that arranges of powder concentrator structure, the discharge nozzle bottom arranges the roller mill structure of corresponding feed pipe, the roller mill structure is provided with blowing device, and at organism bottom the dump skip pipe being set, the dump skip pipe connects feed pipe by bucket elevator.
Described rotor is the cylindrical rotors that is driven by actuating unit that is arranged on the body internal upper part, is made up of some grids that have the gap between adjacent; Described stator is arranged on the body inboard with described rotor correspondence position, comprises the guide vane that some intervals arrange.
Described guide vane deflection angle is adjustable, and discharging opening arranges obliquely.
Described feed pipe and discharge nozzle are communicated with setting.
Described dump skip canal path is provided with the magnetic deironing device.
Described roller mill structure: comprise driving mechanism, driving mechanism connects a mill, and mill circumferential edge place arranges some grinding rollers, and described grinding roller divides big grinding roller, little grinding roller to be crisscross arranged at mill circumferential edge place.
Described big grinding roller, little grinding roller are installed in mill circumferential edge place in pairs at interval.
Described mill upper surface is the plane, mill surface and grinding roller peripheral hardware complex abrasion-proof steel plate.
Described grinding roller is pyramidal structure, and is inner small and outside big.
The utility model has the advantages that: 1) the utility model is by the disturbance formation eddy airstream of rotor to air-flow, the solid particle that granularity is big is concentrated to the air-flow center and is constantly descended, and has simultaneously by air impingement powder concentrator inner walls and guide vane to make the big solid particles sediment of granularity.Therefore the utility model grinding efficiency height, raw meal particle size such as are easy to regulate, particle size range is little at advantage; 2) the outer material circulation of mill: during with Vertical Mill grinding metallurgy high furnace slag, owing to be mingled with irony in the slag, serious wear to mill liner plate and grinding roller roller shell, the vane of slag vertical roll grinder of the present utility model is littler than the height of interior circulation, after slag enters the interior grinding of mill, the compressed air of fine powder blows away, meal overflows from the vane top at mill edge, enter in the dump skip pipe, designed the magnetic deironing device at the dump skip pipe, the magnetic deironing device is removed the irony in the meal, by drag conveyor and bucket elevator meal is delivered to feeding machine again and enters in the mill grinding again; The setting of the utility model mill external circulating system reduces the internal circulating load of material in the mill, cuts down the consumption of energy, and designs suitable vane height, and too much material is overflowed from the vane top, and rational grinding thickness of feed layer is provided, and improves mill efficiency.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the B-B view of Fig. 1.
1 is motor one among the figure, 2 is reductor one, 3 is column, 4 is spring, 5 is vane, 6 is mill, 7 is toroidal shell, 8 is gyroaxis, 9 is the grinding roller axle, 10 is aggregate pipe, 11 is housing, 12 is lower house, 13 is aggregate bin, 14 is upper shell, 15 is discharging opening, 16 is reductor two, 17 is motor two, 18 is rotor, 19 is feeding machine, 20 is feed pipe, 21 is bucket elevator, 22 is drag conveyor, 23 is the magnetic deironing device, 24 is the dump skip pipe, 25 is big grinding roller, 26 is little grinding roller, 27 is guide vane.
The specific embodiment
As accompanying drawing, motor 1 drives reductor one 2 runnings, does gyration simultaneously with the mill 6 that reductor one 2 output shafts link to each other.Slag enters the central authorities that aggregate pipe 10 is fallen mill 6 from revolution lock feeding machine 19 by the feed pipe 20 that is installed on the grinding machine shell 11, to border movement, forms the bed of material at the outer rim place on mill 6 surfaces on the surface of action of centrifugal force lower edge mill 6.Be installed on gyroaxis 8 and the grinding roller axle 9 common rocking arms of forming in the column 3 upper shaft bearings, the rocking arm that hydraulic pressure (pneumatic) spring 4 is formed by gyroaxis 8 and grinding roller axle 9 applies grinding pressure to big grinding roller 25 and little grinding roller 26, mill 6 drives grinding roller by the bed of material and does gyration along grinding roller axle 9 separately, and mill and grinding roller roll grinding to the bed of material.Be installed on vane 5 on the toroidal shell 7 and be close to the outer rim of mill 7, have some nozzle bores on the vane 5, the compressed air of heat to bed of material surface winding-up, makes that the fine powder material on the bed of material upwards rises with hot compressed air behind the grinding by the nozzle bore on the vane, forms dusty gas.Dusty gas enters the sound attitude powder concentrator of being made up of grinding machine shell 11, powder concentrator lower house 12, powder concentrator upper shell 14, the guide vane 27 that is positioned at the powder concentrator upper shell and rotor of powder separator 14 successively and selects powder, particle sedimentation under the effect of guide vane 27 and rotor 18 that granularity is big enters aggregate pipe 10 by the aggregate bin 13 that is positioned at the powder concentrator lower house and falls again and continue grinding on the mill.The fine powder that meets the demands that particle is little is discharged from powder concentrator discharging opening 15 with compressed air, carries out gas solid separation by dust-precipitator, reclaims product.Powder concentrator when work, take reductor 2 16 to by motor 2 17 and make and be installed on the rotor of powder separator 18 that subtracts on the machine output shaft and do gyration, be installed on the guide vane adjustable angle in the powder concentrator upper shell 14.By regulating the angle of compressed-air actuated pressure and guide vane, can obtain varigrained product.
Roller mill structure of the present utility model: mill 6 surfaces are a plane, processing is simple, simultaneously, mill 6 surfaces particularly grinding zone wear-resisting can adopt card install cheap and complex abrasion-proof steel plate that anti-wear performance is superior as liner plate, mill of the present utility model gets final product as the mill material with spheroidal graphite cast-iron even casting pig.
Grinding roller of the present utility model is the taper grinding roller, is conducive to nipping of lump material, can not go out the phenomenon of the such lump material pressure of phenomenon pot mill roller.
The spaced apart structure of size grinding roller: the spaced apart structure of big or small grinding roller of uniqueness of the present utility model has improved mill efficiency greatly with grinding process refinement more.The utility model separately carries out in small, broken bits, compacting, grinding and the process of grinding process under the prerequisite of conscientiously studying grinding process, and 26 pairs of block bed of materials of little grinding roller carry out in small, broken bits and compacting, and in small, broken bits and material compacting of 25 pairs of big grinding rollers carries out grinding.Traditional vertical roll grinder grinding roller all is big rollers of the same size, that each grinding roller is being born is in small, broken bits, the function of compacting and grinding, because grinding roller roller footpath is bigger, spherical grinding roller rolls when loose lump material, the bigger material piece in upper strata the village can occur and turn over the phenomenon of leaving the grinding zone, grinding roller only carries out in small, broken bits, compacting and grinding to the less material of low layer, so mill efficiency is low.
Practical application proves, the spaced apart innovation structure of big or small grinding roller of the present utility model is under the situation identical at the mill diameter, that grinding roller quantity is identical, than the vertical roll grinder output raising 15-20% of traditional whole big roll structures.
The utility model is combined into a module to hydraulic pressure (pneumatic) spring 4 of passive column 3, the gyroaxis 8 that plays connection power transmission effect, the little grinding roller 26 that plays the grinding effect, big grinding roller 25, a grinding pressurization.Can utilize module combinations of the present utility model to become the vertical roll grinder of different sizes such as 2 rollers, 3 rollers, 4 rollers, 5 rollers, 6 rollers, different output as required, realize modularized design, manufacturing, and install simple.
Utilize the vertical roll grinder of module combinations of the present utility model, when maximizing, only need increase the diameter of mill 6, and increase module, do not need to increase the grinding roller diameter, also do not need to increase height and the intensity of mill platform.Increase output than traditional vertical roller mill by amplifying the grinding roller diameter like this, the increase of grinding machine weight is much smaller, therefore can save wide variety of materials and manufacturing expense.Simultaneously, modular design, manufacturing technology can make cost significantly reduce, and also can make to install to simplify.
Utilize the vertical roll grinder of module combinations of the present utility model, grinding machine does not need to increase the grinding roller diameter when maximizing, and can not bring dynamic loading to increase, and the grinding machine vibration is little, noise is low.Can rout up grinding roller when overhauling simultaneously, maintenance is convenient.
Claims (1)
1. one kind is ground outer circulation slag vertical roll grinder, it is characterized in that, comprise body, body upper is provided with the powder concentrator structure of being made up of stator, rotor, the powder concentrator structure is connected with discharging opening, the body sidepiece is provided with the feed pipe that is in powder concentrator structure bottom, underpart is provided with and the corresponding discharge nozzle that arranges of powder concentrator structure, the discharge nozzle bottom arranges the roller mill structure of corresponding feed pipe, the roller mill structure is provided with blowing device, and at organism bottom the dump skip pipe being set, the dump skip pipe connects feed pipe by bucket elevator.
2, a kind of mill outer circulation slag vertical roll grinder according to claim 1 is characterized in that, described rotor is the cylindrical rotors that is driven by actuating unit that is arranged on the body internal upper part, is made up of some grids that have the gap between adjacent; Described stator is arranged on the body inboard with described rotor correspondence position, comprises the guide vane that some intervals arrange.
3, a kind of mill outer circulation slag vertical roll grinder according to claim 2 is characterized in that described guide vane deflection angle is adjustable.
4, a kind of mill outer circulation slag vertical roll grinder according to claim 1 is characterized in that described discharging opening arranges obliquely.
5, a kind of mill outer circulation slag vertical roll grinder according to claim 1 is characterized in that, described feed pipe and discharge nozzle are communicated with setting.
6, a kind of mill outer circulation slag vertical roll grinder according to claim 1 is characterized in that described dump skip canal path is provided with the magnetic deironing device.
7, a kind of mill outer circulation slag vertical roll grinder according to claim 1 is characterized in that described roller mill structure:
Comprise driving mechanism, driving mechanism connects a mill, and mill circumferential edge place arranges some grinding rollers, and described grinding roller divides big grinding roller, little grinding roller to be crisscross arranged at mill circumferential edge place.
8, a kind of mill outer circulation slag vertical roll grinder according to claim 7 is characterized in that, described big grinding roller, little grinding roller are installed in mill circumferential edge place in pairs at interval.
9, a kind of mill outer circulation slag vertical roll grinder according to claim 7 is characterized in that described mill upper surface is the plane, mill surface and grinding roller peripheral hardware complex abrasion-proof steel plate.
10, a kind of mill outer circulation slag vertical roll grinder according to claim 7 is characterized in that described grinding roller is pyramidal structure, and is inner small and outside big.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220418226 CN203030332U (en) | 2012-08-22 | 2012-08-22 | Vertical roller mill for milling outer circulation slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220418226 CN203030332U (en) | 2012-08-22 | 2012-08-22 | Vertical roller mill for milling outer circulation slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203030332U true CN203030332U (en) | 2013-07-03 |
Family
ID=48682474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220418226 Expired - Fee Related CN203030332U (en) | 2012-08-22 | 2012-08-22 | Vertical roller mill for milling outer circulation slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203030332U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110075974A (en) * | 2019-05-10 | 2019-08-02 | 江苏吉达机械制造有限公司 | A kind of powder concentrator of milling online |
| CN110860342A (en) * | 2019-11-15 | 2020-03-06 | 南京钜力智能制造技术研究院有限公司 | External circulation roller type vertical mill |
-
2012
- 2012-08-22 CN CN 201220418226 patent/CN203030332U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110075974A (en) * | 2019-05-10 | 2019-08-02 | 江苏吉达机械制造有限公司 | A kind of powder concentrator of milling online |
| CN110860342A (en) * | 2019-11-15 | 2020-03-06 | 南京钜力智能制造技术研究院有限公司 | External circulation roller type vertical mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20140822 |
|
| EXPY | Termination of patent right or utility model |