CN106000566A - Novel ball-milling method used for magnetic material industry - Google Patents
Novel ball-milling method used for magnetic material industry Download PDFInfo
- Publication number
- CN106000566A CN106000566A CN201610356429.3A CN201610356429A CN106000566A CN 106000566 A CN106000566 A CN 106000566A CN 201610356429 A CN201610356429 A CN 201610356429A CN 106000566 A CN106000566 A CN 106000566A
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- Prior art keywords
- magnetic material
- grinding body
- ceramic grinding
- milling
- ball
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Classifications
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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
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/20—Disintegrating members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to a novel ball-milling method used for the magnetic material industry. According to the method, a milling medium and materials to be milled are added into ball-milling equipment, and the materials to be milled are milled to the designated particle size through the action of the milling medium. The materials to be milled are magnetic materials, and a ceramic milling body with the Mohs hardness being 7-9 and the density being 3.0-6.0 g/cm<3> is adopted as the milling medium. The defects of high energy consumption and high loss of milling media in the production process of the magnetic materials are overcome, the ceramic milling body is used as the milling medium in the production process, and parameters such as the hardness and the density of the ceramic milling body are optimized, so that compared with past high-chrome steel ball milling media, energy consumption and ball consumption can be reduced, materials with narrower particle size distribution can be obtained, and the milling efficiency is greatly improved.
Description
Technical field
The present invention relates to ball mill ball milling field, especially relate to a kind of novel ball milling side for magnetic material industry
Method.
Background technology
The equipment that magnetic material ball-milling technology uses at present is bedroom ball mill, and abrasive media is high chrome ball, selected
The specification of high chrome ball is 6mm-8mm, and drum's speed of rotation is 25rpm, and from 6 μm, magnetic material is ground to 0.8 μm, and production capacity is
2.5T/ (16-18h), i.e. about 150Kg/h, owing to the density of high chrome ball is relatively big, generally 7.8g/cm3Left and right, ball mill
Need the energy consumed very big in process of production, about 480 degree electricity/ton powder, and owing to ball hardness is relatively low, process of lapping
The loss of middle ball is relatively big, and for 15Kg/ ton powder, and when steel ball is ground to about 4mm from 6-8mm, steel ball surface is due to abrasion and hits
Hit, uneven phenomenon can be produced, have a strong impact on the granularity (or claiming fineness) of final material, thus affect grinding efficiency.
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art, it is an object of the invention to provide a kind of for magnetic material industry
Novel ball grinding method, it is intended to reduce the electric energy energy consumption of grinding, save mill ball ball consumption and improve grinding efficiency etc..
The purpose of the present invention is achieved by the following technical programs:
A kind of novel ball grinding method for magnetic material industry, it is that abrasive media and material to be ground are added ball milling
In equipment, by the effect of abrasive media, material to be ground is ground to designated size.Described material to be ground is magnetic material,
Described abrasive media selects Mohs' hardness to be 7-9, density is 3.0-6.0g/cm3Ceramic grinding body.
Preferably, described abrasive media select Mohs' hardness for more than 8 and less than or equal to 9, density be 3.0-4.5g/
cm3Ceramic grinding body.
As further preferred, described abrasive media select Mohs' hardness be more than 8 and be less than or equal to 9, density
For 3.5-4.0g/cm3Ceramic grinding body.
As a kind of embodiment, described ceramic grinding body can be spherical.
As another embodiment, described ceramic grinding body can also be cylindricality.
Further, 100-2000 times of material material size a diameter of to be ground of described ceramic grinding body, discharging grain
1000-20000 times of degree.
Further, described ceramic grinding body has four kinds of different specifications, and wherein, the ceramic grinding body of all size is straight
The percentage ratio that the ceramic grinding body consumption of footpath and all size accounts for whole ceramic grinding body gross weight is as follows:
The ceramic grinding body 15-25% of a diameter of 1.5-2.5mm；
The ceramic grinding body 20-35% of a diameter of 3.0-4.0mm；
The ceramic grinding body 20-30% of a diameter of 5.0-6.0mm；
The ceramic grinding body 20-25% of a diameter of 6.0-8.0mm.
Further, described ceramic grinding body is 2:1-5:1 with the weight ratio of material to be ground.
Preferably, described ceramic grinding body is 3:1-4:1 with the weight ratio of material to be ground.
Further, the 40%-70% that addition is ball-grinding machine volume of described ceramic grinding body.
Compared with prior art, present invention have the advantage that
First, in the present invention, the density of ceramic grinding body is far below the density of high chrome ball, therefore at equal admission space
In the case of, the charge weitght of ceramic grinding body of the present invention is less, it is thus possible to reduce the electric energy energy consumption of grinding, after tested,
This energy consumption can be reduced to about 350-400 KWh/ton of powder.
Secondly, in the present invention, the hardness higher chromium steel ball of ceramic grinding body is higher, and in process of lapping, its wear extent is very
Little, the mill ball consumption of conventional high chrome ball is 15Kg high chrome ball/ton powder, and the grinding of ceramic grinding body of the present invention loss is only
2-4Kg ceramic grinding body/ton powder.Meanwhile, when grinding material of the same race, the difference of hardness of ceramic grinding body of the present invention and material is than height
Chromium steel ball is bigger with the difference of hardness of material, thus grinding efficiency is the highest.
Furthermore, Ceramics abrasive body of the present invention substitutes high chrome ball and grinds magnetic material, is possible not only to reduce producing
The noise that process produces, and owing to ceramic grinding body belongs to inert material, the iron tramp dirt to material therefore can also be reduced
Dye.
Finally, the present invention selects sphere diameter specification and consumption proportion more reasonably ceramic grinding body to grind magnetic material
Mill, it is possible to obtain the material that particle size distribution is narrower when grinding than high chrome ball, also can be further ensured that ball milling power consumption and ball simultaneously
Consumption is in low-level.
Detailed description of the invention
A kind of novel ball grinding method for magnetic material industry provided according to the present invention, it is by abrasive media and to treat
Grinding material adds in ball-grinding machine, by the effect of abrasive media, material to be ground is ground to designated size and (or claims thin
Degree).Described material to be ground is magnetic material, such as ferroalloy, nickel alloy, cobalt alloy etc..Described abrasive media selects Mohs
Hardness is 7-9, density is 3.0-6.0g/cm3Ceramic grinding body.
Preferably, described abrasive media can select Mohs' hardness be more than 8 and less than or equal to 9, density be 3.0-
4.5g/cm3Ceramic grinding body.
As further preferred, described abrasive media can also select Mohs' hardness to be more than 8 and to be less than or equal to
9, density is 3.5-4.0g/cm3Ceramic grinding body.
Described ceramic grinding body can be single material, it is also possible to be the mixture of two or more material, such as
It can be the mixture of any one or any two in aluminium oxide ceramics, Zirconium silicate ceramic, zirconia ceramics.Described pottery
The shape of abrasive body can be spherical or cylindricality, and the present embodiment is preferably spherical.
Further, dimensions and the proportioning of ceramic grinding body according to the type of material to be ground and can pass in and out accordingly
Material granularity determines.Feed size is the thickest, corresponding selection large scale ball.When feed size is thick and discharging-material size is thick (broken
Ratio is little), corresponding large scale ball proportioning is many, and the thin and broken ratio of feed size, time big, selects small size ball and small size ball proportioning
Many.The present invention is raising grinding efficiency and energy-conservation amplitude, on the one hand entering with material to be ground with bulb diameter ceramic grinding body
The ratio of discharging-material size is optimized improvement, particularly as follows: ceramic grinding body is material material size to be ground with bulb diameter
100-2000 times (preferably 250-1400 times), 1000-20000 times (preferably 1800-10000 times) of discharging-material size.Separately
On the one hand the selection of ceramic grinding body dimensions and the proportioning of different size size ceramic abrasive body are optimized and change
Good, particularly as follows: described ceramic grinding body has four kinds of different specifications, wherein, the ceramic grinding body diameter of all size and
The percentage ratio that the ceramic grinding body consumption of all size accounts for whole ceramic grinding body gross weight is as follows:
The ceramic grinding body 15-25% of a diameter of 1.5-2.5mm；
The ceramic grinding body 20-35% of a diameter of 3.0-4.0mm；
The ceramic grinding body 20-30% of a diameter of 5.0-6.0mm；
The ceramic grinding body 20-25% of a diameter of 6.0-8.0mm.
Preferably, described ceramic grinding body is 2:1-5:1 with the weight ratio of material to be ground, as the most excellent
Choosing, described ceramic grinding body is 3:1-4:1 with the weight ratio of material to be ground.This ratio is that ceramic grinding body adds first and grinds
With the weight ratio of material to be ground time in mill equipment, also it is because loss occurs in ceramic grinding body during follow-up grinding material
Needing to carry out supplementing reference value during filling to it, according to this reference value, user can draw the active loss amount of ceramic grinding body
And supplement accordingly.During additionally, supplement filling ceramic grinding body, the pottery that only need to proportionally supplement sphere diameter specification maximum grinds
Mill body, the ceramic grinding body of other sphere diameter specification can not supplement.
Further, the 40%-70% that addition is ball-grinding machine volume of described ceramic grinding body, preferred value is
45%-60%.
As described above, only presently preferred embodiments of the present invention, when not limiting, with this, the scope that the present invention implements,
The most generally the simple equivalence change made according to scope of the present invention patent and invention description content and modification, the most still belong to this
In the range of bright patent contains.
Claims (10)
1., for a novel ball grinding method for magnetic material industry, it is abrasive media and material to be ground to be added ball milling set
In Bei, by the effect of abrasive media, material to be ground is ground to designated size, it is characterised in that: described material to be ground is
Magnetic material, described abrasive media selects Mohs' hardness to be 7-9, density is 3.0-6.0g/cm3Ceramic grinding body.
The most according to claim 1 for the novel ball grinding method of magnetic material industry, it is characterised in that: described abrasive media
Select Mohs' hardness for more than 8 and less than or equal to 9, density be 3.0-4.5g/cm3Ceramic grinding body.
The most according to claim 2 for the novel ball grinding method of magnetic material industry, it is characterised in that: described abrasive media
Select Mohs' hardness for more than 8 and less than or equal to 9, density be 3.5-4.0g/cm3Ceramic grinding body.
The most according to claim 1 for the novel ball grinding method of magnetic material industry, it is characterised in that: described ceramic grinding
Body is spherical.
The most according to claim 1 for the novel ball grinding method of magnetic material industry, it is characterised in that: described ceramic grinding
Body is cylindricality.
The most according to claim 4 for the novel ball grinding method of magnetic material industry, it is characterised in that: described ceramic grinding
100-2000 times of material material size a diameter of to be ground, 1000-20000 times of discharging-material size of body.
The most according to claim 4 for the novel ball grinding method of magnetic material industry, it is characterised in that described ceramic grinding
Body has four kinds of different specifications, and wherein, the ceramic grinding body diameter of all size and the ceramic grinding body of all size are used
The percentage ratio that amount accounts for whole ceramic grinding body gross weight is as follows:
8. according to described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 for the novel ball grinding method of magnetic material industry, it is special
Levy and be: described ceramic grinding body is 2:1-5:1 with the weight ratio of material to be ground.
The most according to claim 8 for the novel ball grinding method of magnetic material industry, it is characterised in that: described ceramic grinding
Body is 3:1-4:1 with the weight ratio of material to be ground.
10. according to described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 for the novel ball grinding method of magnetic material industry, it is special
Levy and be: the 40%-70% that addition is ball-grinding machine volume of described ceramic grinding body.
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| CN201610356429.3A CN106000566A (en) | 2016-05-26 | 2016-05-26 | Novel ball-milling method used for magnetic material industry |
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| CN201610356429.3A CN106000566A (en) | 2016-05-26 | 2016-05-26 | Novel ball-milling method used for magnetic material industry |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051659A (en) * | 2017-06-12 | 2017-08-18 | 东北大学 | A kind of new milling method for being used to optimize molybdenite flotation behavior |
| CN107159398A (en) * | 2017-06-12 | 2017-09-15 | 东北大学 | A kind of new milling method for being used to optimize copper mine flotation behavior |
| CN107175152A (en) * | 2017-06-12 | 2017-09-19 | 东北大学 | A kind of new milling method for being used to optimize Sphalerite flotation behavior |
| CN107185658A (en) * | 2017-06-12 | 2017-09-22 | 东北大学 | A kind of mineral fine grinding and Ultrafine Grinding milling method using Ceramic Balls as medium |
| CN107185657A (en) * | 2017-06-12 | 2017-09-22 | 东北大学 | A kind of new milling method for being used to optimize galena flotation behavior |
| CN107262217A (en) * | 2017-06-12 | 2017-10-20 | 东北大学 | A kind of new milling method for being used to optimize gold ore flotation behavior |
| CN109675686A (en) * | 2018-11-29 | 2019-04-26 | 刘永 | A kind of material filling method improving ball mill grinding efficiency |
| CN111013747A (en) * | 2019-12-19 | 2020-04-17 | 上海大学 | Method for preparing nano-scale powder by ball milling |
| CN112844649A (en) * | 2020-12-23 | 2021-05-28 | 中建材蚌埠玻璃工业设计研究院有限公司 | Fine-particle quartz sandstone mineral grinding method |
| CN112958258A (en) * | 2021-04-27 | 2021-06-15 | 江西理工大学 | Steel ball-free ore grinding method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107185658B (en) * | 2017-06-12 | 2019-05-21 | 东北大学 | It is a kind of using Ceramic Balls as the mineral fine grinding of medium and Ultrafine Grinding milling method |
| CN107159398A (en) * | 2017-06-12 | 2017-09-15 | 东北大学 | A kind of new milling method for being used to optimize copper mine flotation behavior |
| CN107175152A (en) * | 2017-06-12 | 2017-09-19 | 东北大学 | A kind of new milling method for being used to optimize Sphalerite flotation behavior |
| CN107185658A (en) * | 2017-06-12 | 2017-09-22 | 东北大学 | A kind of mineral fine grinding and Ultrafine Grinding milling method using Ceramic Balls as medium |
| CN107185657A (en) * | 2017-06-12 | 2017-09-22 | 东北大学 | A kind of new milling method for being used to optimize galena flotation behavior |
| CN107262217A (en) * | 2017-06-12 | 2017-10-20 | 东北大学 | A kind of new milling method for being used to optimize gold ore flotation behavior |
| CN107051659A (en) * | 2017-06-12 | 2017-08-18 | 东北大学 | A kind of new milling method for being used to optimize molybdenite flotation behavior |
| CN109675686A (en) * | 2018-11-29 | 2019-04-26 | 刘永 | A kind of material filling method improving ball mill grinding efficiency |
| CN109675686B (en) * | 2018-11-29 | 2021-01-26 | 刘永 | Material filling method for improving grinding efficiency of ball mill |
| CN111013747A (en) * | 2019-12-19 | 2020-04-17 | 上海大学 | Method for preparing nano-scale powder by ball milling |
| CN112844649A (en) * | 2020-12-23 | 2021-05-28 | 中建材蚌埠玻璃工业设计研究院有限公司 | Fine-particle quartz sandstone mineral grinding method |
| CN112844649B (en) * | 2020-12-23 | 2022-12-23 | 中建材玻璃新材料研究院集团有限公司 | Fine-particle quartz sandstone mineral grinding method |
| CN112958258A (en) * | 2021-04-27 | 2021-06-15 | 江西理工大学 | Steel ball-free ore grinding method |
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Application publication date: 20161012 |