CN202143851U - Vertical mill with mutually standby main and auxiliary roller sets - Google Patents

Vertical mill with mutually standby main and auxiliary roller sets Download PDF

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Publication number
CN202143851U
CN202143851U CN201120213790U CN201120213790U CN202143851U CN 202143851 U CN202143851 U CN 202143851U CN 201120213790 U CN201120213790 U CN 201120213790U CN 201120213790 U CN201120213790 U CN 201120213790U CN 202143851 U CN202143851 U CN 202143851U
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CN
China
Prior art keywords
roller group
grinding roller
vertical mill
drive device
fluid pressure
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Expired - Lifetime
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CN201120213790U
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Chinese (zh)
Inventor
贾建文
崔龙啸
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Co., Ltd of Beijing Electrical Equipment Factory
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BEIJING ELECTRIC POWER EQUIPMENT GENERAL FACTORY
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Priority to CN201120213790U priority Critical patent/CN202143851U/en
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Publication of CN202143851U publication Critical patent/CN202143851U/en
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Abstract

The utility model provides a vertical mill with mutually standby main and auxiliary roller sets. The vertical mill with the mutually standby main and auxiliary roller sets comprises a millstone, the milling roller sets in extrusion contact with the surface of the millstone, and a driving device for driving the milling roller sets to operate, wherein the milling roller sets include a first milling roller set and a second milling roller set; the milling rollers in the first milling roller set are the same as those in the second milling roller set in quantity, shape and material; the driving device comprises a hydraulic driving device for driving the first milling roller set and a second hydraulic driving device for driving the second milling roller set; and the first hydraulic driving device is the same as the second hydraulic driving device. In the vertical mill with the mutually standby main and auxiliary roller sets, the milling rollers in the main milling roller set are exactly the same as those in the auxiliary milling roller set in quantity, material, size and loading mode, when the main roller set is abraded during the operation to approach the service life, the main and the auxiliary roller sets can achieve functional interchange, so that the running time of the vertical mill is doubled, the maintenance frequency is lowered, the maintenance cost is reduced, and the productivity effect is improved.

Description

The subsequent use each other Vertical Mill of a kind of major-minor roller group
Technical field
The utility model relates to the Vertical Mill field, the subsequent use each other Vertical Mill of particularly a kind of major-minor roller group.
Background technology
Vertical Mill is a kind of desirable large-scale milling equipment, is widely used in industries such as cement, electric power, metallurgy, chemical industry, nonmetallic ore.It integrates fragmentation, drying, grinding, classification carries, and production efficiency is high, can block, graininess and powder raw material be worn into desired granular material.
Grinding roller is the vitals of slag Vertical Mill, and its roller shell directly influences the time between overhauls(TBO) and the operating rate of slag Vertical Mill service life.The service life of roller shell and materials used, appearance and size, slag material characteristic, the mill pressure and the method for operation etc. are relevant.
Fig. 1 is the structural representation of present employed slag Vertical Mill.As shown in Figure 1, this slag Vertical Mill comprises mill 101, the grinding roller group that contacts with mill 101 surface extruding and the drive unit that is used to drive the running of grinding roller group.Wherein, the grinding roller group comprises home roll group 111 and auxilliary roller group 112, and home roll group 111 is mainly used in grinding material, and auxilliary roller group 112 is mainly used in stone, is about to material and paves compacting, grinds for home roll group 111.Drive unit comprises the hydraulic loading device 113 and the oil cylinder 114 that is used to drive auxilliary roller group 112 runnings that is used to drive 111 runnings of home roll group.
Because home roll group 111 is different with the job specification of auxilliary roller group 112, auxilliary roller group 112 not responsible grinding materials, so its size is much smaller than the size of home roll group 111; Usually process by rich chromium cast iron; Its wearability and resistance to impact are far smaller than the material of home roll group 111, and its load mode also adopts oil cylinder to load, but the oil cylinder cylinder diameter is less; Its loading force is less relatively, so its wearing and tearing hardly in running.
Therefore, in present employed slag Vertical Mill, because the design of main and auxiliary roller group is different, no matter auxilliary roller group all is worse than the home roll group from size, material and loading system aspect.Then at home roll group service wear to service life, auxilliary roller group can't switch to the effect that the home roll group is born grinding material.Therefore,, must stop the work of slag Vertical Mill, the home roll group is carried out repair and maintenance when home roll group fault or after wearing up to service life.Thereby cause the time between overhauls(TBO) of slag Vertical Mill shorter, influence the operating rate of Vertical Mill,, can produce bigger influence the benefit of slag micropowder enterprise especially in the busy season of slag micropowder production and sales.
The utility model content
The utility model provides a kind of major-minor roller group subsequent use each other Vertical Mill, and quantity, material, size and the load mode of the grinding roller of its home roll group and auxilliary roller group are identical, and after service life, major-minor roller group can realize exchange function at home roll group service wear.
The technical scheme that its technical problem of solution of the utility model is adopted is:
The subsequent use each other Vertical Mill of a kind of major-minor roller group comprises:
Mill, the grinding roller group that contacts with the extruding of mill surface and the drive unit that is used to drive this grinding roller group running,
Said grinding roller group comprises the first grinding roller group and the second grinding roller group, and quantity, shape, the material of this first grinding roller group and the grinding roller of the second grinding roller group are all identical,
Said drive unit comprises first fluid pressure drive device and second fluid pressure drive device that is used to drive the second grinding roller group that is used to drive the first grinding roller group, and this first and second fluid pressure drive device is identical.
Preferably, the on-load pressure of said first fluid pressure drive device is 10-14MPa, and the on-load pressure of second fluid pressure drive device is 2-4MPa.
Preferably, the on-load pressure of said first fluid pressure drive device is 2-4MPa, and the on-load pressure of second fluid pressure drive device is 10-14MPa.
Preferably, said first fluid pressure drive device further comprises first accumulator, and said second fluid pressure drive device further comprises second accumulator,
The pressure of said first accumulator is the 50%-60% of the on-load pressure of first fluid pressure drive device,
The pressure of said second accumulator is the 50%-60% of the on-load pressure of second fluid pressure drive device.
Preferably, the said first grinding roller group and the second grinding roller group comprise by the castiron roller tire of ZG20SiMn with attached to the surperficial overlay cladding of this roller tire.
Preferably, the said first grinding roller group and the second grinding roller group further comprise forced circulation oil lubrication device.
The subsequent use each other Vertical Mill of major-minor roller group of the utility model, quantity, material, size and the load mode of the grinding roller of its home roll group and auxilliary roller group are identical, when home roll group service wear arrives near service life; Because auxilliary roller group pressure is less, can wear and tear hardly, though can't carrying out material again, the home roll group after wearing and tearing this moment mills; But can be used for carrying out stone, and former auxilliary roller group is because not wearing and tearing basically can be carried out improved grinding as home roll; Again corresponding on-load pressure and energy storage pressure are adjusted; Thereby realize the mutual switching of major-minor roller group function, make prolong one times the running time of this Vertical Mill, thereby reduce the maintenance number of times; Reduce recondition expense, increase productivity effect.
Description of drawings
Fig. 1 is the structural representation of existing slag Vertical Mill.
Fig. 2 is the structural representation of the subsequent use each other Vertical Mill of the major-minor roller group of the utility model.
The specific embodiment
The utility model provides a kind of major-minor roller group subsequent use each other Vertical Mill; Quantity, material, size and the load mode of the grinding roller of its home roll group and auxilliary roller group are identical; When home roll group service wear arrived near service life, major-minor roller group can realize exchange function.
Fig. 2 is the structural representation of the subsequent use each other Vertical Mill of the major-minor roller group of the utility model.As shown in Figure 2, the Vertical Mill of the utility model comprises mill 201, the grinding roller group that contacts with mill 201 surface extruding and the drive unit that is used to drive this grinding roller group running.
Wherein, the grinding roller group comprises that the first grinding roller group 211 and the second grinding roller group, 212, the first grinding roller groups 211 comprise two or more grinding rollers, and same, the second grinding roller group 212 also can comprise two or more grinding rollers.In the utility model, quantity, shape, the material of the grinding roller of this first grinding roller group 211 and the second grinding roller group 212 are identical, the grinding roller separation that two grinding roller groups are contained, be distributed on mill 201 around.
Drive unit comprises first fluid pressure drive device 213 and second fluid pressure drive device 214 that is used to drive the second grinding roller group 212 that is used to drive the first grinding roller group 211, and this first and second fluid pressure drive device 213,214 is identical.
Can be responsible for improved grinding, and another be as auxilliary roller group, is responsible for stone with one of them of the first grinding roller group 211 and the second grinding roller group 212 as the home roll group.For example, at first with the first grinding roller group 211 as the home roll group, the second grinding roller group 212 is the auxilliary roller group of conduct then.When home roll group service wear to service life; Because quantity, shape, the material of the grinding roller of the first grinding roller group 211 and the second grinding roller group 212 are identical; And first fluid pressure drive device 213 and second fluid pressure drive device 214 as its type of drive are also identical, therefore, and can be with the exchange function of main and auxiliary roller group; Be about to the first grinding roller group 211 and carry out stone, and the second grinding roller group 212 is carried out improved grinding as the home roll group as auxilliary roller group.Then Vertical Mill can be because of wearing and tearing as the first grinding roller group 211 of home roll group and stopping immediately producing; Overhaul but after the second grinding roller group 212 that switches to the home roll group also wears up to service life, just quit work, can make prolong one times the running time of Vertical Mill like this.Thereby reduce the maintenance number of times, reduce recondition expense, increase productivity effect.
Further, when the first grinding roller group 211 during as the home roll group, the on-load pressure of first fluid pressure drive device 213 is 10-14MPa, and the on-load pressure of second fluid pressure drive device 214 is 2-4MPa.After main and auxiliary roller group was switched, the on-load pressure of first fluid pressure drive device 213 and second fluid pressure drive device 214 also switched accordingly.
Preferably; First fluid pressure drive device 213 further comprises the first accumulator (not shown); Second fluid pressure drive device 214 further comprises the second accumulator (not shown), and the pressure of first accumulator and second accumulator is respectively the 50%-60% of the on-load pressure of first fluid pressure drive device 213 and second fluid pressure drive device 214.
Generally, the grinding roller roller shell of the first grinding roller group 211 and the second grinding roller group 212 comprises by the castiron roller tire of ZG20SiMn with attached to the surperficial wearable overlay of this roller tire, with further raising wearability.
Preferably, the first grinding roller group 211 and the second grinding roller group 212 further comprise forced circulation oil lubrication device, and it is used for adopting the lubricating system of forced circulation oil to be lubricated cooling to grinding roller.
In the subsequent use each other Vertical Mill of the major-minor roller group of the utility model, quantity, material, size and the load mode of the grinding roller of its home roll group and auxilliary roller group are identical, when home roll group service wear arrives near service life; Because auxilliary roller group pressure is less; Can wear and tear hardly, mill, can be used for carrying out stone though the home roll group after wearing and tearing this moment can't be carried out material again; And former auxilliary roller group is because not wearing and tearing basically; Can carry out improved grinding as home roll, more corresponding on-load pressure and energy storage pressure adjusted, thereby realize the mutual switching of major-minor roller group function.
Can find out from above technical scheme, the slag Vertical Mill method of operation of the utility model, the Vertical Mill continuous operating time prolonged one times from present 1500~2000 hours; Can reach more than 3000~4000 hours, with respect to the present slag Vertical Mill method of operation, the time between overhauls(TBO) prolongs 1 times; The maintenance number of times reduces half the; Especially in the production and sales busy season of slag micropowder, the user can arrange the repair time of oneself easily according to the production schedule of oneself, reduces recondition expense; Improve operating rate, increase the performance of enterprises.
The method of operation of the slag Vertical Mill that the major-minor roller group of the utility model is exchanged can reach more than 3000 hours the grinding roller group of slag Vertical Mill service life, and the former relatively method of operation has improved 2 times, and; Because two groups of grinding roller groups have interchange reaction, one group when breaking down, can let another group replacement work; Do not influence production, successfully manage potential equipment fault, reduce the overhaul of the equipments number of times; Improve the operating rate of equipment greatly, reduced recondition expense, improved enterprise profit.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.

Claims (6)

1. the subsequent use each other Vertical Mill of major-minor roller group is characterized in that, comprising:
Mill, the grinding roller group that contacts with the extruding of mill surface and the drive unit that is used to drive this grinding roller group running,
Said grinding roller group comprises the first grinding roller group and the second grinding roller group, and quantity, shape, the material of this first grinding roller group and the grinding roller of the second grinding roller group are all identical,
Said drive unit comprises first fluid pressure drive device and second fluid pressure drive device that is used to drive the second grinding roller group that is used to drive the first grinding roller group, and this first and second fluid pressure drive device is identical.
2. the subsequent use each other Vertical Mill of major-minor roller group according to claim 1 is characterized in that the on-load pressure of said first fluid pressure drive device is 10-14MPa, and the on-load pressure of second fluid pressure drive device is 2-4MPa.
3. the subsequent use each other Vertical Mill of major-minor roller group according to claim 1 is characterized in that the on-load pressure of said first fluid pressure drive device is 2-4MPa, and the on-load pressure of second fluid pressure drive device is 10-14MPa.
4. according to claim 2 or the subsequent use each other Vertical Mill of 3 described major-minor roller groups, it is characterized in that said first fluid pressure drive device further comprises first accumulator, said second fluid pressure drive device further comprises second accumulator,
The pressure of said first accumulator is the 50%-60% of the on-load pressure of first fluid pressure drive device,
The pressure of said second accumulator is the 50%-60% of the on-load pressure of second fluid pressure drive device.
5. the subsequent use each other Vertical Mill of major-minor roller group according to claim 4 is characterized in that, the said first grinding roller group and the second grinding roller group comprise the roller tire processed by ZG20SiMn cast steel and attached to the build-up wear-resistant layer on this roller tire surface.
6. the subsequent use each other Vertical Mill of major-minor roller group according to claim 4 is characterized in that the said first grinding roller group and the second grinding roller group further comprise forced circulation oil lubrication device.
CN201120213790U 2011-06-22 2011-06-22 Vertical mill with mutually standby main and auxiliary roller sets Expired - Lifetime CN202143851U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120213790U CN202143851U (en) 2011-06-22 2011-06-22 Vertical mill with mutually standby main and auxiliary roller sets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120213790U CN202143851U (en) 2011-06-22 2011-06-22 Vertical mill with mutually standby main and auxiliary roller sets

Publications (1)

Publication Number Publication Date
CN202143851U true CN202143851U (en) 2012-02-15

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CN201120213790U Expired - Lifetime CN202143851U (en) 2011-06-22 2011-06-22 Vertical mill with mutually standby main and auxiliary roller sets

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103394395A (en) * 2013-08-21 2013-11-20 中国能建集团装备有限公司北京技术中心 Slag vertical grinder
CN109127005A (en) * 2018-08-31 2019-01-04 江苏鹏飞集团股份有限公司 Spare multiple roll cement vertical roll grinder mutually
CN114653436A (en) * 2022-03-31 2022-06-24 中材(天津)粉体技术装备有限公司 Grinding device driven by auxiliary grinding roller

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103394395A (en) * 2013-08-21 2013-11-20 中国能建集团装备有限公司北京技术中心 Slag vertical grinder
CN103394395B (en) * 2013-08-21 2015-08-12 中国能建集团装备有限公司北京技术中心 Slag vertical-mill
CN109127005A (en) * 2018-08-31 2019-01-04 江苏鹏飞集团股份有限公司 Spare multiple roll cement vertical roll grinder mutually
CN109127005B (en) * 2018-08-31 2021-06-29 江苏鹏飞集团股份有限公司 Mutual standby multi-roll cement vertical roller mill
CN114653436A (en) * 2022-03-31 2022-06-24 中材(天津)粉体技术装备有限公司 Grinding device driven by auxiliary grinding roller

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 102401 Beijing City, Fangshan District Liangxiang Haotian Street No. 12

Patentee after: Co., Ltd of Beijing Electrical Equipment Factory

Address before: 102401 Beijing City, Fangshan District Liangxiang Haotian Street No. 12

Patentee before: Beijing Electric Power Equipment General Factory

CX01 Expiry of patent term

Granted publication date: 20120215

CX01 Expiry of patent term