CN102348509A - Hydraulic array for roller mills - Google Patents
Hydraulic array for roller mills Download PDFInfo
- Publication number
- CN102348509A CN102348509A CN2010800120215A CN201080012021A CN102348509A CN 102348509 A CN102348509 A CN 102348509A CN 2010800120215 A CN2010800120215 A CN 2010800120215A CN 201080012021 A CN201080012021 A CN 201080012021A CN 102348509 A CN102348509 A CN 102348509A
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- hydraulic
- milling
- roller
- spring
- unit
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- 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
- B02C15/04—Mills with pressed pendularly-mounted rollers, e.g. spring pressed
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The invention relates to a hydraulic array for roller mills, having a spring unit (11) for each grinding roll, a gas/oil reservoir (16, 17) and hydraulic supply systems for changing the operation states of the spring units or grinding rolls. In order to ensure an almost constant crushing power and a uniform contact pressure of the grinding rolls and at the same time reduce the production and assembly costs and the risk of failure of the components of the hydraulic system and to improve the exchange of components or the entire system, each spring unit of a grinding roll is associated, in its proximity, with its proper hydraulic supply unit (20) as a compact hydraulic system and a reservoir station (22) so that the necessary connections can be realized by means of relatively short conduits (23) and high-pressure lines (24). Every hydraulic supply unit can be pre-assembled under dust-free ambient conditions and accommodated for example in a hydraulic cabinet (25) and only needs to be connected on site.
Description
Technical field
What the present invention relates to is the hydraulic system that is used for roll mill according to the preamble of claim 1.
Background technology
The present invention is used to roll mill; Wherein, Pulverize the thing of milling between the roller mill band and the milling of rolling of fixed-site of the cyclical level of the pan mill or the dish of milling, and this roll mill is constructed such that the thing of milling that pulverized is from the pan mill edge or the Overruning grinding mill that drops of the dish edge of milling or be formed at the integrated sifter air-flow roll mill machine of carrying the thing of milling that is pulverized along air stream or gas stream downwards.
What especially have advantage is, the present invention for example is applicable to large-scale roll mill, has 2m and bigger pan mill diameter and has the large-scale roll mill of three, four or six rollers of milling.For example, known the pan mill diameter is arranged is 4.1 and 4.3m, the roll mill of four or six rollers of milling that rolling thereon.
Have advantage ground and construct the LOESCHE type air-flow roll mill that has two, three, four or six rollers of milling and DE 31 00 341 A1, DE 10 2,004 062 400 B4, USPS 6 with the module structure mode; 021,968 and WO 2005/028112 A1 known this air-flow roll mill.
Member in the module structure has: the roller of milling, therein be supported with the swing arm of the roll shaft of milling, be fixed with the stand of swing arm and be used to the pneumohydraulic spring device that produces extruding force or mill pressure pivotly thereon.
This pneumohydraulic spring device has the spring assembly that is used for each roller of milling; This spring assembly has the size of looking roller and fixed one or two hydraulic cylinder, gas/oil memory and hydraulic feed system, and this hydraulic feed system is connected with spring unit with high-pressure hose through pipeline.The control device of pump, valve, turn-off apparatus, hydraulic feed system and executive component make hydraulic cylinder can realize the different working state; And can utilize the bed of milling that is built on the pan mill to lift the roller of milling thus; Fall and (for example mill roller; In the bed depression of milling) and when the drive unit of milling starts, the roller of milling is with to lift from milling; Wherein, improve or reduce operating pressure or counter-pressure respectively.
Be well known that all rollers of three roller grinding mills all are connected (DD-PS 106 953) with hydraulic system.These two the roller hydraulic pressure connections each other of milling respect to one another are disclosed in the roll mill that has two rollers of milling respect to one another.
Shown in Fig. 6 is the hydraulic system that has four roller grinding mills of 1 to 4 and two hydraulic tank 5,6 of roller of milling.At this; The right spring cylinder (not shown) of roller that has the roller 1,3 of milling is connected with hydraulic tank 6; And right spring cylinder (not shown) and the hydraulic tank 5 of the roller that has the roller 2,4 of milling, and these rollers pair are connected with gas/oil memory (not shown) under each its.
This connection needs high-pressure hose and pipeline.Usually the circulating line 7,8 that lays round the grinding mill base plate is connected to each other each roller 1,3 or 2,4 of milling, and respectively with the hydraulic tank 5,6 under lateral 9 guiding.
The known defective that has the system that is used for the right hydraulic tank of each roller is: be used for making and the expense of assembling pipeline (in particular for pipeline laying) too high, the parts of hydraulic system since at the scene the pollution that can't avoid fully down of assembled condition and the risk of accidental damage is higher relatively and when damaging the maintenance possibility of hydraulic system or single parts with to change possibility relatively low.
Productivity based on the pair roller type grinding mill requires to improve constantly, and the size expansion of roll mill causes connecting pipeline/circulating line and becomes longer, and this can produce in the work of milling and disturb.Through roller the travelling forward and motion backward in the work of milling of milling; The hydraulic oil of extrusion or sucking-off at first flow in the gas/oil memory owing to the less resistance of ducting from spring cylinder, yet also partly through in the spring cylinder that connects the relative placement of pipeline flow-direction difference.Because can't enough promptly flowing into, its inertia and resistance, hydraulic oil connect in the pipeline.Cause unallowed high pressure peak value or cavitation pitting phenomenon thus, this can cause the oil pressure shakiness in the cylinder chamber and the power of pulverizing of the roller below that also causes thus milling constantly changes.The operation stability of pair roller type grinding mill and production efficiency cause negative effect thus.
When pump be activated and below cylinder chamber in oil pressure when being raised, when the undulating value that allows is exceeded, milling, roller hydraulically lifts and throw off engagement with the thing of milling.Based on different resistances, the roller of milling one after the other lifts, and that is to say, second roller of milling thrown off engagement with the thing of milling after the time of about one minute half, and wherein, first roller of milling has arrived the mechanical stop of top subsequently.The roller of milling then just recovers even running again.Produce lifting the time of about one minute half by volume to be filled in the pump power of selected hydraulic pressure supply unit and spring cylinder and the gas/oil memory.Yet; As far as generic function " operating pressure raising "; Big pump power is disadvantageous; Because in the of short duration connection process of big pump, had too many oil to be transported in the system; Cause pressure to raise rapidly, this elevated pressure has surpassed standard value and has caused appearance to make the order of " operating pressure decline " in the hydraulic system again then.Frequent hysteresis phenomenon appears in this transfer process thus.
Summary of the invention
The objective of the invention is to, overcome above-mentioned negative effect and assurance to stable operation and productivity mill almost constant power of pulverizing of roller or identical extruding force through hydraulic system.Also reduced (in particular for pipeline) manufacturing expense and assembly fee usefulness simultaneously, and reduced the damage risk of hydraulic system parts and improved maintenance work and parts or whole system are changed.
According to the present invention, this purpose realizes through the characteristic of claim 1.Have in dependent claims and the accompanying drawing according to purpose and make with advantage.
Dominant ideas of the present invention are; In order to substitute the existing connection pipeline of the spring unit that is used for the right hydraulic tank of each roller and required for this reason, as to be used to have one or two hydraulic cylinder roller of milling and the system of high-pressure hose of having; For the spring unit of the roller of milling is equipped with the hydraulic pressure supply unit as the compact unit, integrated all supply part and control assemblies that need in this compact unit.
The accumulator support can be integrated in the hydraulic pressure supply unit equally, this accumulator support has advantage ground and has hydraulic bladder formula accumulator and the hydraulic piston type accumulator as compact unit.
According to the present invention, be each spring unit each hydraulic pressure supply unit of outfit and the accumulator support and close setting of the roller of milling of roll mill as the compact hydraulic system, thereby by the relatively pipeline and necessary being connected of high-pressure hose realization of weak point.
What have advantage is that each hydraulic pressure supply unit all is configured to the compact hydraulic unit and can under dustless environmental condition, carries out pre-assembled, thereby only needs at the scene to connect this preassembled compact unit, preferably is contained in the hydraulic tank.Avoided polluting and having reduced the risk of damaging thus as far as possible.
At this; Especially tool advantageously; Each hydraulic tank that has preassembled compact hydraulic system all is arranged on the fuel tank, and like needs, this compact hydraulic system can lift and can simple especially mode apace it be changed thus from fuel tank.
Pipeline or high-voltage tube be soft be in spring unit and pump unit, control element, valve are housed therein and the hydraulic tank of the turn-off apparatus of the duty that is used to switch spring unit or mill roller and operating unit between; The length that this pipeline or high-voltage tube are soft is obviously reduced, and has avoided required channel bend in having the hydraulic system that is used for the right hydraulic tank of each roller and circulating line as far as possible.
Especially be configured to according to hydraulic system of the present invention: direct spring cylinder suspender or the spring cylinder with the roller of milling of hydraulic tank that has the compact hydraulic system is arranged together; Therefore almost there is not commute under the rotating situation of elbow in hydraulic oil, and non-resistance ground commute thus.
For the sliding bearing of the transmission output flange of pair roller type grinding mill almost evenly loads; Abolished the hydraulic pressure circulating line according to the destination after (this hydraulic pressure ring pipe has the pressure balance that is in the hydraulic pressure between the roller spring cylinder of milling respect to one another) electrical control gear or adjusting device be set; This electric apparatus control apparatus or adjusting device detect each oil pressure in relative spring system by sensor, and remain near the tolerance less relatively rated value.When overrate, start each hydraulic system or open each relief valve momently.
Advantage according to hydraulic means of the present invention is; Improve operation stability, improved the almost constant power of pulverizing of the roller below of milling of production capacity and roll mill; And except having reduced (especially relevant) manufacturing expense and the assembly fee, also having reduced the damage risk of hydraulic pressure supply unit parts based on pre-assembled and the hydraulic pressure supply unit of changing easily with roughing-in.Except by being in the milling the pressure regulating system of sensor in the relative spring unit; What have advantage in addition is; Be subjected under the disturbed condition, all rollers of milling can lift simultaneously, and no longer since flowed friction one after the other with time delay lift.
Description of drawings
Further the present invention is set forth by accompanying drawing below; Wherein,
Fig. 1 illustrates the schematic diagram according to pneumohydraulic spring of the present invention system;
Fig. 2 illustrates the zoomed-in view according to the hydraulic cylinder of pneumohydraulic spring of the present invention system;
Fig. 3 illustrates the zoomed-in view according to the hydraulic piston type accumulator of pneumohydraulic spring of the present invention system;
Fig. 4 illustrates the zoomed-in view according to the hydraulic bladder formula accumulator of pneumohydraulic spring of the present invention system;
Fig. 5 illustrates the strong explanatory view that is used for the hydraulic means of six roller grinding mills according to the present invention.
The specific embodiment
Shown in Fig. 1 is the pneumohydraulic spring system 10 that is used for the LOESCHE type air-flow roll mill of modular construction.Set a spring unit 11 according to the present invention for each roller (not shown) of milling.
The spring unit 11 of each roller of milling all has the size (and the size of especially looking the roller of milling thus) of looking the roller die piece and one or two fixed hydraulic cylinder 12, and this hydraulic cylinder is connected with the roller (not shown) of milling through swing arm 13.Hydraulic cylinder 12 is fixed together and is fixed together through connecting rod head 15 and swing arm 13 through hinge hole 14 and support 21 or grinding mill bottom respectively.
Each spring unit 11 of roller of milling all is furnished with hydraulic pressure supply unit 20 separately.This hydraulic pressure supply unit 20 comprises pump, valve and turn-off apparatus that motor drives, the pressure regulating system or be used to of milling switches the different operating state of roller spring electronic control and executive component.
Easy access hydraulic pressure supply unit 20 is arranged in the hydraulic tank 25, wherein, what especially have advantage is that pump, valve and turn-off apparatus (not shown) that pre-assembled is required all are the compact hydraulic systems thereby make each hydraulic pressure supply unit 20.
The whole hydraulic tank 25 that has the compact hydraulic system directly is arranged in fuel tank 26 tops, so as (for example, when overhaul) can simply save time the compact hydraulic system is lifted and substitutes this compact hydraulic system with the identical unit of structure from fuel tank 26.
Accumulator support 22 has four hydraulic piston type accumulators 16 and four hydraulic bladder formulas of 2x accumulator 17; In the side view of Fig. 1, can only see one of them hydraulic piston type accumulator 16, and in Fig. 1, can only see wherein two hydraulic bladder formula accumulators 17.
In the accumulator support, hydraulic piston type accumulator 16 and hydraulic bladder formula accumulator 17 can be assembled into compact unit and be connected with corresponding hydraulic tank 25 through pipeline 23.Fig. 1 also has Fig. 5 to illustrate, and (relevant with the roller die piece that has support 21) accumulator support 22, spring unit 11 and the roller (not shown) of milling are disposed in hydraulic tank (25) and are connected with spring unit 11 with hydraulic tank before and directly.
Hydraulic piston type accumulator 16 and hydraulic bladder formula accumulator 17 with direct connection of hydraulic cylinder 12 realize and have advantage ground not having disadvantageous elbow basically by high-pressure hose 24.
Fig. 2 illustrates hydraulic cylinder 12, in this hydraulic cylinder, guides piston 18 hydraulic cylinders with piston rod 19.At piston rod side 28, each hydraulic cylinder 12 is connected with hydraulic bladder formula accumulator 17 with the A of operating pressure system under assembled state, and in piston side 29, each hydraulic cylinder is connected (see figure 1) with back pressure system G with hydraulic piston type accumulator 16 through hydraulic hose 24.
Fig. 3 illustrates the hydraulic piston type accumulator 16 that has piston 31, and this piston was opened gas volume in the upper zone 32 and the hydraulic oil in the following zone in 33 minutes.
Have rubber pneumatic bag 35 and hydraulic oil 36 at the hydraulic bladder formula accumulator 17 shown in Fig. 4, the same working method by hydropneumatic spring assembly of horizontal plane of the piston in the horizontal plane of the piston 31 in the horizontal plane of this hydraulic oil and the hydraulic piston type accumulator 16 shown in Figure 3 and the hydraulic cylinder 12 of Fig. 2 is confirmed and in Fig. 2 to Fig. 4, is only schematically described.
In the course of work of milling, be placed on the thing of milling on the pan mill roller of to mill and lift.Swing arm 13 deflections this moment.The piston 18 of hydraulic cylinder 13 moves up and oil is expressed among the A of operating pressure system, enters into the hydraulic bladder formula accumulator 17 of corresponding accumulator support 22 (see figure 1)s.Being full of the oil pressure that accumulator air bag 35 (see figure 4)s of nitrogen are then poured in is reduced in the bladder accumulator 17.
Simultaneously, back pressure system G (see figure 1) is in piston side 29 work of hydraulic cylinder 12.Thus, hydraulic oil 33 is pushed back the piston side 29 of hydraulic cylinder simultaneously from hydraulic piston type accumulator 16 by nitrogen pressure 32 (see figure 3)s.
When in the roller of milling is being milled the bed depression, rolling, this process is reversed.In the operating pressure system, hydraulic oil is pressed into the piston rod side 28 of hydraulic cylinder 12 (Fig. 2) from hydraulic bladder formula accumulator 17.At this moment, hydraulic oil is expressed to the hydraulic piston type accumulator 16 by the piston side 29 from hydraulic cylinder 12 simultaneously.The inhomogeneities of bed owing to mill, the roller of milling continues to be in vertical motion, and said process is constantly hocketed.
Can hydraulically the roller of milling be lifted from the bed of milling in order to start and stop roll mill.Utilization can simultaneously or almost simultaneously realize above-mentioned startup according to pneumohydraulic spring of the present invention system and stop.
In Fig. 5, very schematically show the hydraulic means that is used for the modular construction of six roller grinding mills according to the present invention.Wherein only show the spring unit 11 of six supports 21 and six hydraulic pressure supply units 20, accumulator support 22 and six pneumohydraulic spring unit 10.
Fig. 5 illustrates; The high-pressure hose 24 that is in the pipeline 23 (also visible Fig. 1) between accumulator support 22 and the affiliated hydraulic feed system 20 and is between the hydraulic cylinder 12 of accumulator support 22 and each pneumohydraulic spring system 10 is shorter relatively, and can not use channel bend thus.The hydraulic tank 25 of the hydraulic pressure supply unit 20 of each pneumohydraulic spring system 10 can make hydraulic oil non-resistance ground commute thus directly towards hydraulic cylinder 12.
Be loaded on the transmission device simultaneously through electrical control gear/adjusting device (not shown) roller of milling that each is relative under the situation that does not have the hydraulic pressure circulating line, thereby avoided possible arch support to damage.In this electric apparatus control apparatus/adjusting device, detect the oil pressure in the relative spring unit and in less relatively tolerance, hold it near the rated value by the sensor (not shown).When overrate, the pump that is in each hydraulic tank is activated and opens momently each bleed valve.Realize the efficient pressure balance through this behavior and mode.
Claims (8)
1. the hydraulic means that is used for roll mill, wherein, the roller of milling rolls on pan mill that rotates and the bed of milling that is formed by the thing of milling thereon, and flexibly is pressed on the said thing of milling by hydropneumatic spring system,
Wherein, the said hydropneumatic spring system that is used for each roller of milling has spring unit, and this spring unit has at least one double acting hydraulic cylinder, and
Gas/oily memory and hydraulic feed system be provided with pump, valve, turn-off apparatus, be used to switch the control and the operating unit of the duty of the said spring unit or the roller of milling, and be connected with the hydraulic cylinder of high-pressure hose with the said roller of milling by pipeline,
It is characterized in that,
Each roller of milling all be furnished with a pneumohydraulic spring system (10) and
Each pneumohydraulic spring system (10) also has hydraulic pressure supply unit (20) and accumulator support (22) separately separately except said spring unit (11); Said hydraulic pressure supply unit and said accumulator support are closer to each other and near arranging on said spring unit ground, and are connected to each other with high-pressure hose (24) or are connected with said spring unit (11) through the pipeline (23) of lacking.
2. hydraulic means according to claim 1 is characterized in that, each hydraulic pressure supply unit (20) is configured to the close-coupled hydraulic system and it is carried out pre-assembled and it is contained in the hydraulic tank (25) to maintenance easily.
3. hydraulic means according to claim 2 is characterized in that, each hydraulic tank (25) all is disposed on the fuel tank (26) and can lifts also replaceable from fuel tank (26).
4. hydraulic means according to claim 1 and 2 is characterized in that, each hydraulic tank (25) that has corresponding accumulator support (22) all directly is arranged together with the said spring unit (11) of the roller of milling and is connected with it.
5. hydraulic means according to claim 4; It is characterized in that; The described spring system (11) that each accumulator support (22) with hydraulic piston type accumulator (16) and hydraulic bladder formula accumulator (17) all is configured to compact unit and direct and the roller of milling is arranged together; And directly be arranged in hydraulic tank (25) front, and be connected with it through short pipeline (23) through short hydraulic hose (24).
6. according to above-mentioned any described hydraulic means of claim, it is characterized in that, be provided with the pressure regulating system of milling, utilizing this system can be that the extruding force of the roller of milling respect to one another is adjusted to much at one with the roller of milling of roll mill at least.
7. hydraulic means according to claim 6 is characterized in that, the said pressure regulating system of milling has the sensor that is used to detect oil pressure in the zone of said spring unit (11).
8. according to above-mentioned any described hydraulic means of claim; It is characterized in that; Each hydraulic cylinder (12) of spring unit (11) is connected with the corresponding roller of milling through the roller-swing arm of milling (13); Wherein, The piston rod (19) of piston (18) hingedly is fixed on the swing arm (13) through connecting rod head (15) in hydraulic cylinder (12), and said hydraulic cylinder (12) is fixed on the support (21) of grinding mill bottom or roller die piece through hinge hole (14).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202009004025U DE202009004025U1 (en) | 2009-03-19 | 2009-03-19 | Hydraulic arrangement for roller mill |
| DE202009004025.9 | 2009-03-19 | ||
| PCT/EP2010/001592 WO2010105783A1 (en) | 2009-03-19 | 2010-03-12 | Hydraulic array for roller mills |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102348509A true CN102348509A (en) | 2012-02-08 |
| CN102348509B CN102348509B (en) | 2014-07-02 |
Family
ID=42342592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080012021.5A Expired - Fee Related CN102348509B (en) | 2009-03-19 | 2010-03-12 | Hydraulic array for roller mills |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP2408565B1 (en) |
| JP (1) | JP5417526B2 (en) |
| CN (1) | CN102348509B (en) |
| BR (1) | BRPI1009903A2 (en) |
| DE (1) | DE202009004025U1 (en) |
| DK (1) | DK2408565T3 (en) |
| EA (1) | EA022509B1 (en) |
| ES (1) | ES2388598T3 (en) |
| PL (1) | PL2408565T3 (en) |
| WO (1) | WO2010105783A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104703703A (en) * | 2012-08-22 | 2015-06-10 | Gbf设计研究有限责任公司 | Grinding device |
| CN105102132A (en) * | 2014-03-21 | 2015-11-25 | 德国莱歇公司 | Method and device for preparing and separating a material from a combined multicomponent system |
| WO2020042679A1 (en) * | 2018-08-31 | 2020-03-05 | 江苏鹏飞集团股份有限公司 | Multi-roller vertical cement roller mill having alternately standby grinding rollers |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010012893A1 (en) * | 2010-03-26 | 2011-09-29 | Loesche Gmbh | roller mill |
| DE102010031442A1 (en) * | 2010-07-16 | 2012-01-19 | Hitachi Power Europe Gmbh | Clamping system i.e. hydropneumatic clamping system, for coal mill utilized for grinding coal to be burned in combustion chamber of steam generator in coal power station, has storage devices attached to hydraulic apparatuses |
| JP7279641B2 (en) * | 2017-11-16 | 2023-05-23 | Ｕｂｅマシナリー株式会社 | VERTICAL CRUSHER AND METHOD OF CONTROLLING GRINDING ROLLER PRESSURE OF VERTICAL CRUSHER |
| DE102018123508A1 (en) | 2018-09-25 | 2020-03-26 | Mitsubishi Hitachi Power Systems Europe Gmbh | Clamping system of a roller mill with a modular hydraulic storage unit |
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- 2009-03-19 DE DE202009004025U patent/DE202009004025U1/en not_active Expired - Lifetime
-
2010
- 2010-03-12 WO PCT/EP2010/001592 patent/WO2010105783A1/en active Application Filing
- 2010-03-12 EA EA201101289A patent/EA022509B1/en not_active IP Right Cessation
- 2010-03-12 JP JP2012500128A patent/JP5417526B2/en not_active Expired - Fee Related
- 2010-03-12 CN CN201080012021.5A patent/CN102348509B/en not_active Expired - Fee Related
- 2010-03-12 PL PL10713306T patent/PL2408565T3/en unknown
- 2010-03-12 EP EP10713306A patent/EP2408565B1/en active Active
- 2010-03-12 DK DK10713306.8T patent/DK2408565T3/en active
- 2010-03-12 ES ES10713306T patent/ES2388598T3/en active Active
- 2010-03-12 BR BRPI1009903A patent/BRPI1009903A2/en not_active IP Right Cessation
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| EP0048787A2 (en) * | 1980-10-01 | 1982-04-07 | Combustion Engineering, Inc. | Electronic controller of hydraulic pressure for journal loading of bowl mill |
| US4485974A (en) * | 1980-12-17 | 1984-12-04 | F. L. Smidth & Co. | Vertical roller mill and method of use thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104703703A (en) * | 2012-08-22 | 2015-06-10 | Gbf设计研究有限责任公司 | Grinding device |
| CN104703703B (en) * | 2012-08-22 | 2017-02-22 | Gbf设计研究有限责任公司 | grinding device |
| CN105102132A (en) * | 2014-03-21 | 2015-11-25 | 德国莱歇公司 | Method and device for preparing and separating a material from a combined multicomponent system |
| WO2020042679A1 (en) * | 2018-08-31 | 2020-03-05 | 江苏鹏飞集团股份有限公司 | Multi-roller vertical cement roller mill having alternately standby grinding rollers |
Also Published As
| Publication number | Publication date |
|---|---|
| EA022509B1 (en) | 2016-01-29 |
| PL2408565T3 (en) | 2012-09-28 |
| DE202009004025U1 (en) | 2010-08-12 |
| DK2408565T3 (en) | 2012-08-13 |
| WO2010105783A1 (en) | 2010-09-23 |
| ES2388598T3 (en) | 2012-10-16 |
| EP2408565B1 (en) | 2012-05-23 |
| EA201101289A1 (en) | 2012-02-28 |
| CN102348509B (en) | 2014-07-02 |
| EP2408565A1 (en) | 2012-01-25 |
| JP5417526B2 (en) | 2014-02-19 |
| BRPI1009903A2 (en) | 2016-03-15 |
| JP2012520976A (en) | 2012-09-10 |
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