CN102847586A - Air-swept efficient vertical roller mill - Google Patents
Air-swept efficient vertical roller mill Download PDFInfo
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- CN102847586A CN102847586A CN 201210300247 CN201210300247A CN102847586A CN 102847586 A CN102847586 A CN 102847586A CN 201210300247 CN201210300247 CN 201210300247 CN 201210300247 A CN201210300247 A CN 201210300247A CN 102847586 A CN102847586 A CN 102847586A
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Abstract
The invention relates to the field of air-swept efficient vertical roller mill. The air-swept efficient vertical roller mill comprises a mill body; a powder selecting mechanism comprising a stator and a rotor is arranged on the upper part of the mill body; the powder selecting mechanism is connected with a discharge port; the side of the mill body is provided with a feeding pipe at the lower part of the powder selecting mechanism; the lower part of the mill body is provided with a discharge pipe corresponding to the powder selecting mechanism; the lower part of the discharge pipe is provided with a roller mechanism corresponding to the feeding pipe; and the roller mechanism is provided with a blowing device, which is a wind ring arranged on the lateral part of the roller mechanism. The wind ring arranged in the present invention enables the materials entering the feeding tube to be blown upward; and then vortex flow is formed through disturbance on the airflow by the rotor; solid particles with large granularity gather into the center of the airflow and fall down continuously; at the same time, the air bumps against an inner wall of the powder selecting mechanism shell and a guide vane to settle down the solid particles with large granularity. Therefore, the present invention has advantages of high powder selecting efficiency, easily adjustable the particle granularity and small granularity range.
Description
Technical field
The present invention relates to a kind of wind and sweep formula high-efficiency vertical roller mill field.
Background technology
Vertical roll grinder integrates grinding, oven dry, classification (selecting powder) and conveying function, have that efficient is high, 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 the remarkable advantages such as adjusting, be used for more and more widely grinding and the superfine grinding of the industry materials such as cement (raw material, coal, grog), metallurgical slag, material, chemical industry.
Domestic present Vertical Mill exists that the grinding mechanism life-span is short, mill efficiency is low, is difficult to maximize, the feed system poor air-tightness, select the powder system grinding efficiency low, granularity is difficult to regulate, the shortcomings such as the low maintenance difficulty of running rate, have a long way to go so that domestic Vertical Mill performance is compared with external advanced product, particularly for the clinker of high rigidity, the grinding of slag, domestic Vertical Mill is difficult to adapt to.Along with in recent years high thin and tall popularization of mixing technology, 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 affected service life and the running rate of grinding machine to the grinding mechanism serious wear of grinding machine.
Summary of the invention
The present invention is directed to defects, purpose is to provide a kind of installation, maintenance simple and convenient, a kind of mill outer circulation type vertical roller mill for slag that mill efficiency, service life and running rate improve greatly.
The technical solution used in the present invention is for this reason: the present invention includes body, body upper is provided with the powder concentrator structure that is comprised 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, is provided with blowing device on the roller mill structure, and described blowing device is the vane that is arranged on roller mill structure sidepiece.
Described rotor is the cylindrical rotors that is driven by actuating unit that is arranged on the body internal upper part, by some adjacent between the gapped grid of tool form; Described stator is arranged on the body of described rotor correspondence position inboard, comprises the guide vane that some intervals arrange.
Described guide vane deflection angle is adjustable.
Described discharging opening arranges obliquely.
Described feed pipe and discharge nozzle are communicated with setting.
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 large grinding roller, little grinding roller to be crisscross arranged at mill circumferential edge place; Be higher than the mill setting above the described vane.
Described large grinding roller, the paired interval of little grinding roller are installed in mill circumferential edge place.
Described mill upper surface is the plane, mill surface and grinding roller peripheral hardware compound wear-resisting steel plates.
Described grinding roller is pyramidal structure, and is inner small and outside big.
Advantage of the present invention is: the present invention is by the setting of vane, make the material that enters in the feed pipe by to blowing up, then by the disturbance formation eddy airstream of rotor to air-flow, the solid particle that granularity is large is concentrated to the air-flow center and is constantly descended, and has simultaneously by air impingement powder concentrator inwall and guide vane to make the large solid particles sediment of granularity.The advantages such as therefore grinding efficiency of the present invention is high, raw meal particle size is easy to regulate, particle size range is little.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the B-B view of Fig. 1.
1 is that motor one, 2 is that reductor one, 3 is that column, 4 is that spring, 5 is that vane, 6 is that mill, 7 is that toroidal shell, 8 is that gyroaxis, 9 is that shaft of grinding roller, 10 is that aggregate pipe, 11 is that housing, 12 is that feed pipe, 13 is that feeding machine, 14 is that rotor, 15 is that motor two, 16 is that reductor two, 17 is that lower house, 18 is that aggregate bin, 19 is that upper shell, 20 is that discharging opening, 21 is that guide vane, 22 is that little grinding roller, 23 is large grinding roller among the figure.
The specific embodiment
Such as accompanying drawing, motor 1 drives reductor one 2 runnings, does simultaneously gyration with the mill 6 that reductor one 2 output shafts link to each other.Material enters the central authorities that aggregate pipe 10 is fallen mill 6 from revolution airlock feeding machine 13 by the feed pipe 12 that is installed on the grinding machine shell 11, along the surface of mill 6 to border movement, forms the bed of material at the outer rim place on mill 6 surfaces under the effect of centrifugal force.Be installed on gyroaxis 8 and the shaft of grinding roller 9 common rocking arms that form in the column 3 upper shaft bearings, hydraulic pressure (pneumatic) spring 4 applies grinding pressure by gyroaxis 8 and the rocking arm that shaft of grinding roller 9 forms to large grinding roller 23 and little grinding roller 22, mill 6 drives grinding roller by the bed of material and does gyration along shaft of grinding roller 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 successively the sound attitude powder concentrator that is comprised of grinding machine shell 11, powder concentrator lower house 18, powder concentrator upper shell 19, the guide vane 21 that is positioned at the powder concentrator upper shell and rotor of powder separator 14 and selects powder, the particle that granularity is large sinks under the effect of guide vane 21 and rotor 14, enters aggregate pipe 12 by the aggregate bin 18 that is positioned at powder concentrator lower house 17 and again falls and continue grinding on the mill.The fine powder that meets the demands that particle is little is discharged from powder concentrator discharging opening 20 with compressed air, carries out gas solid separation by dust-precipitator, reclaims product.Powder concentrator when work, to take reductor 2 16 to by motor 2 15 and make and be installed on the rotor of powder separator 14 that subtracts on the machine output shaft and do gyration, the guide vane angle that is installed in the powder concentrator upper shell 19 is adjustable.By regulating the angle of compressed-air actuated pressure and guide vane, can obtain varigrained product.
Large grinding roller 23 and little grinding roller 22 are taper and inner small and outside big, and install at large grinding roller 23 and little grinding roller 22 paired intervals.
Roller mill structure of the present invention: mill 6 surfaces are a plane, processing is simple, simultaneously, mill 6 surfaces particularly grinding zone wear-resisting can adopt card install cheap and compound wear-resisting steel plates that anti-wear performance is superior as liner plate, mill of the present invention gets final product as the mill material with spheroidal graphite cast-iron even casting pig.
Grinding roller of the present invention 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 invention has improved mill efficiency greatly with more refinement of grinding process.The present invention separately carries out in small, broken bits, compacting, grinding and the process of grinding process under the prerequisite of conscientiously studying grinding process, and 22 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 23 pairs of large 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 larger, spherical grinding roller rolls when loose lump material, the larger 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 invention is in the situation that the mill diameter is identical, grinding roller quantity is identical, than the vertical roll grinder output increased 15-20% of traditional whole large roll structures.
The present invention is combined into a module to hydraulic pressure (pneumatic) spring 4 of passive column 3, the gyroaxis 8 that plays the connection intermal force, the little grinding roller 22 that plays the grinding effect, large grinding roller 23, a grinding pressurization.Can utilize as required module combinations of the present invention to become the vertical roll grinder of the different sizes such as 2 rollers, 3 rollers, 4 rollers, 5 rollers, 6 rollers, different output, realize modularized design, manufacturing, and install simple.
Utilize the vertical roll grinder of module combinations of the present invention, 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 a large amount of materials and manufacturing expense.Simultaneously, modular design, manufacturing technology can make cost significantly reduce, and also can make to install to simplify.
Claims (9)
1. a wind is swept the formula high-efficiency vertical roller mill, it is characterized in that, comprise body, body upper is provided with the powder concentrator structure that is comprised of stator, rotor, and the powder concentrator structure is connected with discharging opening, and 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, is provided with blowing device on the roller mill structure, and described blowing device is the vane that is arranged on roller mill structure sidepiece.
2. a kind of wind according to claim 1 is swept the formula high-efficiency vertical roller mill, it 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, by some adjacent between the gapped grid of tool form; Described stator is arranged on the body of described rotor correspondence position inboard, comprises the guide vane that some intervals arrange.
3. a kind of wind according to claim 1 is swept the formula high-efficiency vertical roller mill, it is characterized in that, described guide vane deflection angle is adjustable.
4. a kind of wind according to claim 1 is swept the formula high-efficiency vertical roller mill, it is characterized in that, described discharging opening arranges obliquely.
5. a kind of wind according to claim 1 is swept the formula high-efficiency vertical roller mill, it is characterized in that, described feed pipe and discharge nozzle are communicated with setting.
6. a kind of wind according to claim 1 is swept the formula high-efficiency vertical roller mill, it 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 large grinding roller, little grinding roller to be crisscross arranged at mill circumferential edge place; Be higher than the mill setting above the described vane.
7. a kind of wind according to claim 6 is swept the formula high-efficiency vertical roller mill, it is characterized in that, described large grinding roller, the paired interval of little grinding roller are installed in mill circumferential edge place.
8. a kind of wind according to claim 6 is swept the formula high-efficiency vertical roller mill, it is characterized in that, described mill upper surface is the plane, mill surface and grinding roller peripheral hardware compound wear-resisting steel plates.
9. a kind of wind according to claim 6 is swept the formula high-efficiency vertical roller mill, it 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 201210300247 CN102847586A (en) | 2012-08-22 | 2012-08-22 | Air-swept efficient vertical roller mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210300247 CN102847586A (en) | 2012-08-22 | 2012-08-22 | Air-swept efficient vertical roller mill |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639018A (en) * | 2013-12-17 | 2014-03-19 | 临沂市博信机械有限公司 | Self-adaptive vibration accumulation and energy supply high-efficiency vertical roller mill |
| CN103977863A (en) * | 2014-05-19 | 2014-08-13 | 江苏新业重工股份有限公司 | Novel millstone lining plate device of vertical mill |
| CN104727173A (en) * | 2015-03-23 | 2015-06-24 | 济南大学 | Pulping device capable of achieving solid-liquid separation and secondary air vortex breakdown |
| CN106378236A (en) * | 2016-08-29 | 2017-02-08 | 山东玻纤集团股份有限公司 | Vertical grinding machine for glass fiber |
| CN109475878A (en) * | 2016-07-21 | 2019-03-15 | 株式会社Ihi | Vertical roll grinder |
| CN110614145A (en) * | 2018-06-20 | 2019-12-27 | 尧柏特种水泥技术研发有限公司 | Vertical mill system and method for producing oil well cement |
| CN111841767A (en) * | 2019-04-24 | 2020-10-30 | 合肥中亚建材装备有限责任公司 | Novel vertical mill selection powder machine device |
-
2012
- 2012-08-22 CN CN 201210300247 patent/CN102847586A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639018A (en) * | 2013-12-17 | 2014-03-19 | 临沂市博信机械有限公司 | Self-adaptive vibration accumulation and energy supply high-efficiency vertical roller mill |
| CN103977863A (en) * | 2014-05-19 | 2014-08-13 | 江苏新业重工股份有限公司 | Novel millstone lining plate device of vertical mill |
| CN104727173A (en) * | 2015-03-23 | 2015-06-24 | 济南大学 | Pulping device capable of achieving solid-liquid separation and secondary air vortex breakdown |
| CN109475878A (en) * | 2016-07-21 | 2019-03-15 | 株式会社Ihi | Vertical roll grinder |
| US10967382B2 (en) | 2016-07-21 | 2021-04-06 | Ihi Corporation | Vertical roller mill |
| CN106378236A (en) * | 2016-08-29 | 2017-02-08 | 山东玻纤集团股份有限公司 | Vertical grinding machine for glass fiber |
| CN110614145A (en) * | 2018-06-20 | 2019-12-27 | 尧柏特种水泥技术研发有限公司 | Vertical mill system and method for producing oil well cement |
| CN111841767A (en) * | 2019-04-24 | 2020-10-30 | 合肥中亚建材装备有限责任公司 | Novel vertical mill selection powder machine device |
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Application publication date: 20130102 |