CN102728440B - Efficient upright ball mill - Google Patents
Efficient upright ball mill Download PDFInfo
- Publication number
- CN102728440B CN102728440B CN201210237571.8A CN201210237571A CN102728440B CN 102728440 B CN102728440 B CN 102728440B CN 201210237571 A CN201210237571 A CN 201210237571A CN 102728440 B CN102728440 B CN 102728440B
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- Prior art keywords
- ball
- ball mill
- abrading
- milling
- abrasive material
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- 238000000498 ball milling Methods 0.000 claims abstract description 33
- 239000003082 abrasive agent Substances 0.000 claims description 49
- 238000000227 grinding Methods 0.000 claims description 35
- 230000001141 propulsive effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 238000003801 milling Methods 0.000 abstract 18
- 238000005516 engineering process Methods 0.000 description 6
- 230000008014 freezing Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The invention discloses an efficient upright ball mill, which comprises a milling bucket, a ball mill unit and a control unit, wherein the milling bucket is fixedly arranged at the middle lower part inside a shell; the milling bucket is used for holding milling balls and milling materials to be processed; the ball mill unit is used for ball milling of the milling balls and the milling materials to be processed and comprises a motor, a milling shaft and rotary vanes; the milling shaft is connected with an output shaft of the motor; the rotary vanes are arranged on the milling shaft; the control unit is used for controlling the rotation of the ball mill unit; before the ball mill unit is stopped, the ball mill unit is controlled by the control unit to turn inversely; the rotary vanes rotate along a reverse helix direction so as to generate reverse thrust to the milling balls and the milling materials inside the milling bucket, then the rotary vanes are disassociated from the area of the milling balls and the milling materials inside the milling bucket and are suspended at the area above the milling balls and the milling materials, and consequently, starting current of the motor is safe starting current while the upright ball mill is started again.
Description
Technical field
The present invention relates to a kind of high-efficiency vertical ball mill, especially a kind of Wet vertical ball mill.
Background technology
Chinese patent 20112020205.5 discloses a kind of ball mill, include cylindrical shell, surperficial axial, the footpath of cylindrical shell are upwards provided with a plurality of bolts hole, cylindrical shell is provided with barrel cover outward, between barrel cover and cylindrical shell, there is space, and be bolted and be connected as one, described cylinder inner surface is provided with a plurality of blades.This utility model patent can reduce to 30～40 decibels by the ball mill noise in running, therefore need not coordinate and build sound insulation house when ball mill is installed, has reduced cost and floor space, and operating environment is also greatly improved, and is particularly suitable for horizontal ball mill.
In addition, Chinese patent 20101011104.8 discloses the ball mill that a kind of running noise reduces, ball mill body comprises cylindrical shell, on cylindrical shell, along it, be vertically arranged with multi-turn bolt hole, at cylindrical shell, be outside equipped with the blimp suitable with cylindrical shell rotary surface profile, sound insulation chamber for vacuumizing between blimp and cylindrical shell, blimp outside arranges manhole outer cover and the annular outer cover with vacuum lumen structure again, ball mill noise in running can be reduced to 30～40 decibels, therefore need not coordinate and build sound insulation house when ball mill is installed, cost and floor space have been reduced, operating environment is also greatly improved, be particularly suitable for horizontal ball mill.
Yet except horizontal ball mill, the application of vertical ball mill is very extensive, is mainly used in the pulverizing to various ores.Vertical ball mill is also the energy saving and environment friendly New Mine plant equipment of very paying close attention to both at home and abroad in recent years.It and conventional horizontal ball mill compare, and have the features such as safety, the little power consumption of use, abrasive particle is thin, noise is little, environmental protection.But because the technology of vertical ball mill is in the market difficult to start after shutdown, can not reach the problems such as full-load operation efficiency, this makes the promotion and application of large-scale vertical ball mill run into very large technology barrier.
Existing attritor mill machine technology in the market, in order to guarantee normally to work after it starts, be mostly the startup maximum current that meets motor be main.When electric motor starting reaches after normal operating conditions, current of electric can be reduced to full-power 2/3 left and right, due to the load reduction of output, causes operating efficiency to reduce.Especially hesitation surpasses the regular hour; together with the abrading-ball of vertical ball mill grinding barrel inside and abrasive material will precipitate and be agglomerated to; cause and while again starting, do not start or start very difficulty, situation that then cause the starting current overload of motor even to burn out motor, to damage the parts such as reductor occurs.
Current existing solution is exactly when vertical ball mill is shut down, and the abrading-ball in grinding barrel and abrasive material are cleared out of to a part.And at the icing weather of cold; in order to prevent that abrading-ball in grinding barrel, abrasive material from freezing together, cause next difficulty in starting; generally abrading-ball and abrasive material all will be cleared out from grinding barrel after vertical ball mill is shut down; by the time after the normal startup of next vertical ball mill; again the abrading-ball clearing out and abrasive material are relay and get back to grinding barrel; the work after shutting down of so not only giving brings inconvenience, also greatly reduces the operating efficiency of vertical grinder simultaneously.
Therefore, be necessary to study a kind of high-efficiency vertical ball mill, to solve problems of the prior art.
Summary of the invention
Consider at least one the problems referred to above and completed the present invention, and one object of the present invention is to provide a kind of high-efficiency vertical ball mill, it is characterized in that comprising: shell; Grinding barrel, it is arranged on regularly in shell and is positioned at the middle and lower part of shell, in this grinding barrel for placing pending abrading-ball and abrasive material; For abrading-ball pending described in ball milling and the ball milling unit of abrasive material, it comprises motor, mill axle and vane, and this mill axle is connected with the output shaft of motor, and vane is arranged on mill axle; And control module, for controlling the running of described ball milling unit, wherein, before stopping described ball milling unit, this control module is controlled the reversion of described ball milling unit, and described vane produces the propulsive thrust to abrading-ball in grinding barrel and abrasive material with antispin direction rotation, makes described vane depart from abrading-ball and abrasive material region in grinding barrel, and be suspended in abrading-ball and the region above abrasive material, while again starting described vertical ball mill to meet described in the starting current of motor in clean boot electric current.
Present invention can be implemented in the full-load operation of complex condition effectively start ball mill; especially because of cold snap or because of long-time, shut down; the in the situation that in grinding barrel, abrading-ball abrasive material freezing, condenses; vertical ball mill of the present invention still can normally start, and can automatically reach full-power efficient operation state.
According to a further aspect of the invention, described vane is spirality.Unique screw type blade has loose space at the downside of vane and the region between abrading-ball and abrasive material in the time of can making ball milling cell operation, is convenient to the reversion of ball milling unit and is suspended in abrading-ball and abrasive material top.
According to a further aspect of the invention, described ball milling unit also comprises reductor, and it is connected between motor and mill axle.
According to a further aspect of the invention, make during described ball milling cell operation (upper side rolls abrading-ball and produces the object of the abrasive) downside of vane and the region between abrading-ball and abrasive material have loose space (be beneficial to upper side abrading-ball freely rotate there is reliable abrasive action).
According to a further aspect of the invention, also provide a kind of and adopted described high-efficiency vertical ball mill to carry out the method for ball milling, it is characterized in that comprising the following steps:
Start described ball mill so that it enters duty;
Before stopping described ball milling unit, control the reversion of described ball milling unit, described vane produces the propulsive thrust to abrading-ball in grinding barrel and abrasive material with antispin direction rotation, make described vane depart from abrading-ball and abrasive material region in grinding barrel, and be suspended in abrading-ball and the region above abrasive material, while again starting described vertical ball mill to meet described in the starting current of motor in clean boot electric current;
Stop described ball mill.
Compared with prior art, beneficial effect of the present invention is: high-efficiency vertical ball mill of the present invention will not be subject to the impact of the factors such as environment and downtime, after normal startup, can automatically reach Full-load high-efficiency work; Also solve the interior abrading-ball of grinding barrel and abrasive material because freezing, or shut down for a long time can not normally starting of condensing and cause, caused current of electric overload, burnt out the problem of the parts such as motor or damage reductor, the service life of guaranteeing ball mill; This vertical ball mill increases nearly 1/3 than the operating efficiency of market prior art vertical ball mill.This ball mill has solved current vertical ball mill can not be to the bottleneck of large-scale vertical ball mill development; its bottleneck reason is exactly; large-size ball mill will clear out a large amount of abrading-ball in the inside after shutting down, and this waits just to maintenance and brings a lot of troubles, causes to promote to widely apply to be subject to obstacle.
Accompanying drawing explanation
Fig. 1 is the structural representation of high-efficiency vertical ball mill (stopped status) according to the preferred embodiment of the invention.
Fig. 2 is the sectional schematic diagram along the high-efficiency vertical ball mill of the I-I direction of Fig. 1.
Fig. 3 is the structural representation of high-efficiency vertical ball mill (duty) according to the preferred embodiment of the invention.
Fig. 4 is the sectional schematic diagram along the high-efficiency vertical ball mill of the II-II direction of Fig. 3.
Fig. 5 is a part of structural representation of high-efficiency vertical ball mill according to the preferred embodiment of the invention.
In accompanying drawing, 1. motor, 2. reductor, 3. mill axle, 4. vane, 5. grinding barrel, 6. abrading-ball, 7. abrasive material, 8. space
The specific embodiment
Below in conjunction with accompanying drawing; by preferred embodiment, preferred forms of the present invention is described; the specific embodiment is here to explain the present invention; and should not be construed as limitation of the present invention; in the situation that not departing from spirit of the present invention and essential scope; can make various changes and modifications, within these all should be included in protection scope of the present invention.
Referring to Fig. 1, wherein show the high-efficiency vertical ball mill of the preferred embodiment of the present invention.This high-efficiency vertical ball mill comprises: shell; Grinding barrel 5, it is arranged on regularly in shell and is positioned at the middle and lower part of shell, in this grinding barrel 5 for placing pending abrading-ball 6 and abrasive material 7; For abrading-ball 6 pending described in ball milling and the ball milling unit of abrasive material 7, it comprises motor 1, mill axle 3 and vane 4, and this mill axle 3 is connected with the output shaft of motor 1, and vane 4 is arranged on mill axle 3; And control module, for controlling the running of described ball milling unit, wherein, before stopping described ball milling unit, this control module is controlled the reversion of described ball milling unit, and described vane 4 produces the propulsive thrust to the interior abrading-ball 6 of grinding barrel 5 and abrasive material 7 with antispin direction rotation, makes described vane 4 depart from the interior abrading-ball 6 of grinding barrel 5 and abrasive material 7 regions, and be suspended in abrading-ball 6 and abrasive material 7 region above, while again starting described vertical ball mill to meet described in the starting current of motor 1 in clean boot electric current.
High-efficiency vertical ball mill of the present invention will not be subject to the impact of the factors such as environment and downtime, after normal startup, can automatically reach Full-load high-efficiency work; Also solve the interior abrading-ball of grinding barrel and abrasive material because freezing, or shut down for a long time can not normally starting of condensing and cause, caused current of electric overload, burnt out the problem of the parts such as motor or damage reductor.
Preferably, described vane 4 is spirality.Preferably, described ball milling unit also comprises reductor 2, and it is connected between motor 1 and mill axle 3.
Preferably, make during described ball milling cell operation the region of 7, the downside of vane 4 and abrading-ball 6 and abrasive material have loose gap 8.
Preferably, a kind of method that adopts described high-efficiency vertical ball mill to carry out ball milling, comprises the following steps: start described ball mill so that it enters duty; Before stopping described ball milling unit, control the reversion of described ball milling unit, described vane 4 produces the propulsive thrust to the interior abrading-ball 6 of grinding barrel 5 and abrasive material 7 with antispin direction rotation, make described vane 4 depart from the interior abrading-ball 6 of grinding barrel 5 and abrasive material 7 regions, and be suspended in abrading-ball 6 and abrasive material 7 region above, while again starting described vertical ball mill to meet described in the starting current of motor 1 in clean boot electric current; Stop described ball mill.
Preferably, motor 1 output on vertical ball mill, is directly connected with the mill axle 3 of being furnished with vane 4 by gearbox.Motor 1 in Fig. 2, reductor 2 have formed assembly by mill axle 3 and the vane 4 of configuration.This assembly is suspended in abrading-ball 6, the upper area of abrasive material 7, after motor 1 starts with normal starting current, vane 4 is from the suspension stay state of abrading-ball 6 and abrasive material 7 upper areas, screw in and enter abrading-ball 6 and abrasive material 7 regions in grinding barrel 5 gradually, while motor 1 electric current is increased to gradually normal operating conditions FLC full load current and carries out work.
During shutdown; because there is loose space 8 at the downside of vane 4 and abrading-ball 6 and abrasive material 7 places; thereby guaranteed motor 1 normal starting current under can start in time reversion operation; the vane 4 that makes to grind on axle 3 is contrary with operative orientation; it is antispin direction rotation; the propulsive thrust motion that generation makes progress to the abrading-ball 6 in grinding barrel 5 and abrasive material 7, departs from and is suspended in the upper area of abrading-ball 6 and abrasive material 7, meets under the condition starting in the starting current of motor 1 in safety while again starting and shuts down.
Like this, when start start next time, the starting current that motor can be realized with safety starts with interior enforcement, vane 4 screws in gradually into the abrading-ball 6 of grinding barrel and abrasive material 7 regions, ascending increase is loaded gradually, FLC full load current while making motor 1 intensifying current to normal work, has realized the automatic full-load operation of grinding machine.In addition; this technology has also thoroughly solved the interior abrading-ball of grinding barrel and abrasive material freezes under cold snap or shut down for a long time condensing of causing; make vertical ball mill difficulty in starting, cause in startup current of electric serious because transshipping, burn out motor or damage the problems such as reductor parts and be solved.Avoided original Technology Need after shutdown that the abrasive material in grinding barrel 6 and abrading-ball 7 are first cleared out, after the normal startup of motor 1, then abrading-ball 6 and abrasive material 7 have been put back into the working link that the consumption people in grinding barrel takes time and effort, thereby production efficiency is significantly promoted.
In sum, beneficial effect of the present invention is: high-efficiency vertical ball mill of the present invention will not be subject to the impact of the factors such as environment and downtime, after normal startup, can automatically reach Full-load high-efficiency work; Also solve the interior abrading-ball of grinding barrel and abrasive material because freezing, or shut down for a long time can not normally starting of condensing and cause, caused current of electric overload, burnt out the problem of the parts such as motor or damage reductor, the service life of guaranteeing ball mill; This vertical ball mill increases nearly 1/3 than the operating efficiency of market prior art vertical ball mill.
The invention is not restricted to above-mentioned specific embodiment.These are understandable that, in the situation that not departing from spirit of the present invention and essential scope, can make various changes and modifications, within all should be included in protection scope of the present invention.
Claims (5)
1. a high-efficiency vertical ball mill, is characterized in that comprising: shell; Grinding barrel, it is arranged on regularly in shell and is positioned at the middle and lower part of shell, in this grinding barrel for placing pending abrading-ball and abrasive material; For abrading-ball pending described in ball milling and the ball milling unit of abrasive material, it comprises motor, mill axle and vane, and this mill axle is connected with the output shaft of motor, and vane is arranged on mill axle; And control module, for controlling the running of described ball milling unit, wherein, before stopping described ball milling unit, this control module is controlled the reversion of described ball milling unit, and described vane produces the propulsive thrust to abrading-ball in grinding barrel and abrasive material with antispin direction rotation, makes described vane depart from abrading-ball and abrasive material region in grinding barrel, and be suspended in abrading-ball and the region above abrasive material, while again starting described vertical ball mill to meet described in the starting current of motor in clean boot electric current.
2. a high-efficiency vertical ball mill according to claim 1, is characterized in that described vane is spirality.
3. a high-efficiency vertical ball mill according to claim 1 and 2, is characterized in that described ball milling unit also comprises reductor, and it is connected between motor and mill axle.
4. a high-efficiency vertical ball mill according to claim 1 and 2, makes the downside of vane and the region between abrading-ball and abrasive material have loose space while it is characterized in that described ball milling cell operation.
5. adopt the high-efficiency vertical ball mill described in any one in claim 1-4 to carry out a method for ball milling, it is characterized in that comprising the following steps:
Start described ball mill so that it enters duty;
Before stopping described ball milling unit, control the reversion of described ball milling unit, described vane produces the propulsive thrust to abrading-ball in grinding barrel and abrasive material with antispin direction rotation, make described vane depart from abrading-ball and abrasive material region in grinding barrel, and be suspended in abrading-ball and the region above abrasive material, while again starting described vertical ball mill to meet described in the starting current of motor in clean boot electric current;
Stop described ball mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210237571.8A CN102728440B (en) | 2012-07-11 | 2012-07-11 | Efficient upright ball mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210237571.8A CN102728440B (en) | 2012-07-11 | 2012-07-11 | Efficient upright ball mill |
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| Publication Number | Publication Date |
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| CN102728440A CN102728440A (en) | 2012-10-17 |
| CN102728440B true CN102728440B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210237571.8A Expired - Fee Related CN102728440B (en) | 2012-07-11 | 2012-07-11 | Efficient upright ball mill |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013111564B3 (en) * | 2013-10-21 | 2015-02-12 | Netzsch-Feinmahltechnik Gmbh | DEVICE AND METHOD FOR STARTING AN ORIENTED BALL MILL |
| CN103537360B (en) * | 2013-11-06 | 2016-06-29 | 北京萃宝重工科技有限公司 | Attritor mill normal pressure is without blocking feeding system and method for feeding thereof |
| FR3033864B1 (en) * | 2015-03-17 | 2017-04-21 | Cie Engrenages Et Reducteurs Messian Durand | REDUCER FOR AGITATOR SHREDDER, GRINDER AND USE THEREOF |
| CN114653437A (en) * | 2022-02-28 | 2022-06-24 | 寿县中能新材料科技有限公司 | Double-layer ball-milling equipment for processing high-purity quartz sand |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4566640A (en) * | 1984-01-18 | 1986-01-28 | Beehive Machinery, Inc. | Separating machine having overlapping screw pump |
| CN2076449U (en) * | 1990-01-10 | 1991-05-08 | 冶金工业部长沙矿冶研究院 | Vertical spiral stirring ore mill |
| DE4425906A1 (en) * | 1994-07-21 | 1996-01-25 | Netzsch Erich Holding | Wet grinding of suspensions |
| CN101600504A (en) * | 2007-02-02 | 2009-12-09 | 古斯塔夫斯埃瑞希机械制造工厂有限及两合公司 | The method and the vertical grinding mill that are used for the continuous dry grinding operation of vertical grinding mill |
| CN201862462U (en) * | 2010-06-13 | 2011-06-15 | 中国铝业股份有限公司 | Vertical screw-stirring ore-grinding and floating integrated device |
| CN201862446U (en) * | 2010-11-06 | 2011-06-15 | 衡阳市益林环保能源有限公司 | Coal water slurry ball mill |
| CN201871399U (en) * | 2010-11-25 | 2011-06-22 | 长沙矿冶研究院 | Large vertical tower mill |
-
2012
- 2012-07-11 CN CN201210237571.8A patent/CN102728440B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4566640A (en) * | 1984-01-18 | 1986-01-28 | Beehive Machinery, Inc. | Separating machine having overlapping screw pump |
| CN2076449U (en) * | 1990-01-10 | 1991-05-08 | 冶金工业部长沙矿冶研究院 | Vertical spiral stirring ore mill |
| DE4425906A1 (en) * | 1994-07-21 | 1996-01-25 | Netzsch Erich Holding | Wet grinding of suspensions |
| CN101600504A (en) * | 2007-02-02 | 2009-12-09 | 古斯塔夫斯埃瑞希机械制造工厂有限及两合公司 | The method and the vertical grinding mill that are used for the continuous dry grinding operation of vertical grinding mill |
| CN201862462U (en) * | 2010-06-13 | 2011-06-15 | 中国铝业股份有限公司 | Vertical screw-stirring ore-grinding and floating integrated device |
| CN201862446U (en) * | 2010-11-06 | 2011-06-15 | 衡阳市益林环保能源有限公司 | Coal water slurry ball mill |
| CN201871399U (en) * | 2010-11-25 | 2011-06-22 | 长沙矿冶研究院 | Large vertical tower mill |
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| CN102728440A (en) | 2012-10-17 |
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Denomination of invention: Efficient upright ball mill Effective date of registration: 20150331 Granted publication date: 20140416 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: M-E HEAVY INDUSTRY Co.,Ltd. Registration number: 2015990000244 |
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