CN110354959A - A kind of anaerobic ball grinding method and device - Google Patents
A kind of anaerobic ball grinding method and device Download PDFInfo
- Publication number
- CN110354959A CN110354959A CN201910725016.1A CN201910725016A CN110354959A CN 110354959 A CN110354959 A CN 110354959A CN 201910725016 A CN201910725016 A CN 201910725016A CN 110354959 A CN110354959 A CN 110354959A
- Authority
- CN
- China
- Prior art keywords
- ball
- packaging bag
- vacuum
- ball grinder
- vacuum packaging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000000227 grinding Methods 0.000 title claims abstract description 19
- 238000009461 vacuum packaging Methods 0.000 claims abstract description 48
- 238000000498 ball milling Methods 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000005030 aluminium foil Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 13
- 239000010959 steel Substances 0.000 abstract description 13
- 239000000843 powder Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 description 3
- 239000007769 metal material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Packages (AREA)
- Vacuum Packaging (AREA)
- Crushing And Grinding (AREA)
Abstract
Ball grinder is packed into vacuum packaging bag by a kind of anaerobic ball grinding method and device, the method, is evacuated and hermetically sealed to vacuum packaging bag；The ball grinder that vacuum bag seals is placed on ball mill, anaerobic ball milling can be carried out with clamp.Described device includes ball mill, ball grinder (1), glove box, vacuum packaging bag (2) and vacuum sealer.The ball grinder is evacuated and hermetically sealed in vacuum packaging bag by vacuum sealer；Vacuum packaging bag equipped with ball grinder carries out anaerobic ball milling under the clamping of fixture (4).One layer of bubble chamber film plastic paper (3) is padded between the fixture and the vacuum packaging bag (2) for wrapping up ball grinder.The ball mill is vertical structure, including steel cylinder frame (9), fixture, screw rod (6), takes off bridge (5), fastening nut (8), screw rod spanner (7) and live spindle (10).The present invention can fast implement for the ball grinder of various material and size and carry out ball milling under anaerobic.
Description
Technical field
The present invention relates to a kind of anaerobic ball grinding method and devices, belong to material grinding technique field.
Background technique
Ball milling is a kind of traditional and widely applied powder preparation method, with the extension and nanometer skill of power applications range
The development of art has become one of the key method of powder preparation.Ball-milling method is although simple to operation, but suitable in order to obtain
The powder of partial size or structure but needed to select suitable ball grinder in the experimental stage, and by repeatedly regulating and controlling ratio of grinding media to material, ball milling speed
The conditions such as degree and ball-milling additive.For metal powder, need to carry out ball milling under anaerobic, to prevent sample
It aoxidizes and influences grinding efficiency and sample quality.
The method of anaerobic ball milling mainly carries out in vacuum ball grinder at present.
Vacuum ball grinder is generally mostly metal material can be by close because metal material is conducive to that sealing system is made
Capping is sealed.For the ball grinder of the materials such as the ball grinder that other can not directly be sealed, such as zirconium oxide, nylon, agate,
Corresponding hermetically sealed case can only be generally prepared according to its material and size, and ball grinder is sealed again as in hermetically sealed case.
The preparation of both the above sealing ball grinder requires to carry out special preparation according to its material and size, therefore complex process and valence
Lattice are expensive.With the extension of use time, sealing cover or seal there is also abrasion or deformation, cause sealing effect bad.
In the laboratory exploratory stage, the case where for selecting the ball grinder of which type of material and size to be also not sure
Under, the vacuum ball grinder for selecting any one expensive is all likely to result in the waste of resource and funds.
Summary of the invention
The object of the present invention is to disclose one for some limitations and problem existing for existing vacuum ball grinder ball-milling technology
Kind anaerobic ball grinding method and device.
The technical solution that the present invention realizes is as follows, and ball grinder is packed into vacuum packet by a kind of anaerobic ball grinding method, the method
Pack, is evacuated and hermetically sealed vacuum packaging bag；The ball grinder that vacuum bag seals is placed on ball mill, with clamp
Carry out anaerobic ball milling.
A kind of anaerobic ball grinding method, steps are as follows:
(1) selection can load the vacuum packaging bag of ball grinder and the vacuum sealer suitable for the packaging bag；
(2) ball grinder, vacuum packaging bag and vacuum sealer are put into glove box；
(3) after ball grinder installs sample in glove box, ball grinder is placed in vacuum packaging bag；
(4) vacuum bag is evacuated and hermetically sealed；
(5) ball grinder that vacuum packaging bag seals is placed on ball mill, ball milling can be carried out with clamp.
The vacuum packaging bag is polybag or aluminium foil bag.
One layer of bubble chamber film plastic paper is padded between the fixture and the vacuum packaging bag for wrapping up ball grinder, prevents fixture from damaging
Vacuum packaging bag.
A kind of device for realizing anaerobic ball milling, including ball mill, ball grinder, glove box, vacuum packaging bag and vacuum seal
Machine；The ball grinder is evacuated and hermetically sealed in vacuum packaging bag by vacuum sealer；Vacuum packaging bag equipped with ball grinder
Vacuum-pumping density is honored as a queen to install and is placed on the fixture of ball mill；Vacuum packaging bag equipped with ball grinder carries out under the clamping of fixture
Anaerobic ball milling.
One layer of bubble chamber film plastic paper is padded between the fixture and the vacuum packaging bag for wrapping up ball grinder.
The ball grinder be it is columnar structured, it is open at one end to be provided with cover；Be lined between cover and ball grinder rubber or
The material of plastic seal ring cover is identical as ball grinder material.
The glove box is placed in it to grind materials and stainless steel ball for ball grinder, and is packed into vacuum packaging bag, is taken out
Vacuum sealing.
The vacuum sealer is used to that the vacuum packaging bag equipped with ball grinder to be vacuumized and be sealed.
The ball mill be vertical structure, including steel cylinder frame, fixture, screw rod, take off bridge, fastening nut, screw rod spanner and
Live spindle；The steel cylinder frame is columnar structured, upper end opening, and lower end base is mounted on the live spindle of vertical level
On, the top of two sides has gin pole framework slot；Fixture is made of upper fixture and lower fixture, in vertical direction opposite fortune
It is dynamic；The lower fixture of fixture is mounted on steel cylinder frame bottom, and the axis of live spindle is overlapped with steel cylinder frame axis；The upper fixture of fixture
One end is mounted on one end of screw rod；The top of screw rod is mounted in the screw hole in the middle part of gin pole frame；Gin pole frame both ends hook, can
It is respectively protruding into the gin pole framework slot of steel cylinder frame two sides；The screw rod other end is equipped with screw rod spanner；It screw rod spanner and takes off between bridge
Screw rod on, be equipped with fastening nut；It, will be upper by adjusting screw rod spanner when being equipped with ball grinder between fixture under upper fixture
Lower clamp, then by adjusting fastening nut, bridge will be taken off and screw rod fastening is locked.
The ball mill is rotated by power drive live spindle, so that ball grinder be driven to carry out anaerobic grinding.
The ball grinder material is agate or zirconium oxide.
The invention has the advantages that ball grinder of the present invention for various material and size, can fast implement
Ball milling is carried out under oxygen free condition；Because being not necessarily to expensive vacuum ball grinder or additional hermetically sealed case, call for bids lattice are low
Honest and clean vacuum sealer and vacuum bag, therefore the cost that the present invention is implemented substantially reduces.Operation of the present invention is easy, simultaneously without design
Manufacture complicated vacuum seal container or hermetically sealed case.
Detailed description of the invention
Fig. 1 is a kind of anaerobic ball grinding method flow chart of the present invention；
Fig. 2 is a kind of anaerobic ball-milling device structural schematic diagram of the present invention;
In figure: 1 is ball grinder；2 be vacuum packaging bag；3 be bubble chamber film plastic paper；4 be fixture；5 be to take off bridge；6 be screw rod；7
It is screw rod spanner；8 be fastening nut；9 be steel cylinder frame；10 be live spindle.
Specific embodiment
A specific embodiment of the invention is as depicted in figs. 1 and 2.
Embodiment 1
A kind of anaerobic ball grinding method of the present embodiment, as shown in Figure 1, implementation steps are as follows:
(1) 150 milliliters of stainless steel jar mills, vacuum packaging bag and vacuum sealer are put into glove box；
(2) 10 grams of metal powders and 200 grams of stainless steel balls are fitted into stainless steel jar mill in glove box, and ball milling is canned
Enter vacuum packaging bag；
(3) vacuum packaging bag is evacuated and hermetically sealed with vacuum sealer；
(4) upper one layer of bubble chamber film plastic paper is padded on the ball milling tank bracket of Nanjing University's planetary ball mill (model QM-3SP2),
After vacuum bag equipped with ball grinder is put, then covers and carry clamp with ball mill after one layer of bubble chamber film plastic paper；
(5) ball milling under the revolving speed of 400 revolutions per minute, every ball milling two are shut down ten minutes ten minutes later, altogether ball milling 48 hours;
(6) it checks that vacuum bag still keeps vacuum packaging state after ball milling, and cuts off sack in glove box and open ball milling
Find that oxygen content is without rising in glove box after lid, it was demonstrated that not into oxygen, i.e. ball milling carries out jar under anaerobic.
Embodiment 2
A kind of anaerobic ball grinding method of the present embodiment, as shown in Figure 1, implementation steps are as follows:
(1) 250 milliliters of agate jars, vacuum packaging bag and vacuum sealer are put into glove box；
(2) 5 grams of metal powders and 150 grams of steel balls are fitted into agate jar in glove box, and ball grinder is packed into vacuum
Packaging bag；
(3) vacuum packaging bag is evacuated and hermetically sealed with vacuum sealer；
(4) upper one layer of bubble chamber film plastic paper is padded on the ball milling tank bracket of Nanjing University's planetary ball mill (model QM-3SP2),
After vacuum bag equipped with ball grinder is put, then covers and carry clamp with ball mill after one layer of bubble chamber film plastic paper；
(5) ball milling under the revolving speed of 400 revolutions per minute, every ball milling two are shut down ten minutes ten minutes later, altogether ball milling 48 hours;
(6) it checks that vacuum bag still keeps vacuum packaging state after ball milling, and cuts off sack in glove box and open ball milling
Find that oxygen content is without rising in glove box after lid, it was demonstrated that not into oxygen, i.e. ball milling carries out jar under anaerobic.
Embodiment 3
As shown in Fig. 2, a kind of anaerobic ball-milling device, including ball mill, ball grinder 1, glove box, vacuum packaging bag 2 and vacuum seal
Mouth machine.The ball grinder 1 is evacuated and hermetically sealed in vacuum packaging bag 2 by vacuum sealer；Vacuum equipped with ball grinder 1
Packaging bag vacuum-pumping density is honored as a queen to install and is placed on the fixture 4 of ball mill；Vacuum packaging bag 2 equipped with ball grinder 1 is in fixture 4
Clamping is lower to carry out anaerobic ball milling.
One layer of bubble chamber film plastic paper 3 is padded between the fixture 4 and the vacuum packaging bag 2 for wrapping up ball grinder.
The ball grinder 1 is provided with cover；The material of rubber or plastic seal ring cover is lined between cover and ball grinder
It is identical as ball grinder material；Ball grinder material is agate or zirconium oxide, is selected as needed.
The glove box is placed in it to grind materials and stainless steel ball for ball grinder, and is packed into vacuum packaging bag, is taken out
Vacuum sealing.
Ball mill is vertical structure, including steel cylinder frame 9, fixture 4, screw rod 6, gin pole frame 5, fastening nut 8, screw rod spanner 7
With live spindle 10.The steel cylinder frame 9 is columnar structured, upper end opening, and lower end base is mounted on the rotation of vertical level
On main shaft, the top of two sides has gin pole framework slot；Fixture 4 is made of upper fixture and lower fixture, in vertical direction phase
To movement；The lower fixture of fixture is mounted on steel cylinder frame bottom, and the axis of live spindle is overlapped with steel cylinder frame axis；The upper folder of fixture
One end of tool is mounted on one end of screw rod 6；The top of screw rod is mounted in the screw hole at 5 middle part of gin pole frame；Gin pole frame both ends curve
It is hook-shaped, the gin pole framework slot of 9 two sides of steel cylinder frame can be respectively protruding into；The screw rod other end is equipped with screw rod spanner；Screw rod spanner 7 with take off
On screw rod between bridge 5, it is equipped with fastening nut 8；When being equipped with ball grinder between fixture under upper fixture, pass through adjusting screw rod
Spanner by upper and lower clamp, then by adjusting fastening nut, will take off bridge and screw rod fastening is locked.
Claims (6)
1. a kind of anaerobic ball grinding method, which is characterized in that ball grinder is packed into vacuum packaging bag by the method, to vacuum packaging bag
It is evacuated and hermetically sealed；The ball grinder that vacuum bag seals is placed on ball mill, anaerobic ball milling can be carried out with clamp.
2. a kind of anaerobic ball grinding method according to claim 1, which is characterized in that the method comprises the following steps:
(1) selection can load the vacuum packaging bag of ball grinder and the vacuum sealer suitable for the packaging bag；
(2) ball grinder, vacuum packaging bag and vacuum sealer are put into glove box；
(3) after ball grinder installs sample in glove box, ball grinder is placed in vacuum packaging bag；
(4) vacuum bag is evacuated and hermetically sealed；
(5) ball grinder that vacuum packaging bag seals is placed on ball mill, ball milling can be carried out with clamp.
3. a kind of anaerobic ball grinding method according to claim 2, which is characterized in that the vacuum packaging bag be polybag or
Aluminium foil bag.
4. a kind of anaerobic ball grinding method according to claim 2, which is characterized in that the fixture is true with package ball grinder
One layer of bubble chamber film plastic paper is padded between empty package bag, prevents fixture from damaging vacuum packaging bag.
5. a kind of anaerobic ball-milling device realized such as Claims 1-4 the method, which is characterized in that described device includes ball
Grinding machine, ball grinder, glove box, vacuum packaging bag and vacuum sealer；The ball grinder is in vacuum packaging bag, by vacuum seal
Mouth machine is evacuated and hermetically sealed；Vacuum packaging bag vacuum-pumping density equipped with ball grinder is honored as a queen on the fixture for being placed on ball mill；It is described
One layer of bubble chamber film plastic paper is padded between fixture and the vacuum packaging bag for wrapping up ball grinder；The glove box is for ball grinder at it
Interior placement is packed into vacuum packaging bag to grind materials and stainless steel ball, vacuumizes sealing.
6. a kind of anaerobic ball-milling device according to claim 5, which is characterized in that the ball grinder be it is columnar structured,
It is open at one end to be provided with cover；The material and ball grinder material of rubber or plastic seal ring cover are lined between cover and ball grinder
It is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910725016.1A CN110354959A (en) | 2019-08-07 | 2019-08-07 | A kind of anaerobic ball grinding method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910725016.1A CN110354959A (en) | 2019-08-07 | 2019-08-07 | A kind of anaerobic ball grinding method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110354959A true CN110354959A (en) | 2019-10-22 |
Family
ID=68223259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910725016.1A Pending CN110354959A (en) | 2019-08-07 | 2019-08-07 | A kind of anaerobic ball grinding method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110354959A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200945443Y (en) * | 2006-05-24 | 2007-09-12 | 中国科学院上海微系统与信息技术研究所 | Ball-milling pot capable of bearing high pressure and vacuum |
| CN102199191A (en) * | 2010-03-24 | 2011-09-28 | 中国科学院大连化学物理研究所 | Sealing system composed of small anaerobic operation bags and chromatography column in series |
| CN202527229U (en) * | 2012-04-30 | 2012-11-14 | 长沙天创粉末技术有限公司 | High-temperature planetary ball mill |
| KR101253525B1 (en) * | 2012-10-11 | 2013-04-11 | 이창훈 | Plenary ballmill apparatus |
| CN103394689A (en) * | 2013-07-31 | 2013-11-20 | 西安交通大学 | Atmosphere protection glove bag |
| CN104492552A (en) * | 2014-11-25 | 2015-04-08 | 广西大学 | Low-temperature planetary high-energy bowl mill |
| CN205236085U (en) * | 2015-12-21 | 2016-05-18 | 刘丹 | Wear -resisting ball -milling jar of carbide at no dead angle |
| CN205280437U (en) * | 2015-11-03 | 2016-06-01 | 幸罗平 | Exempt from to seal by fusing, exempt from overcoat of glass sampling pipe of cutting |
| CN106116587A (en) * | 2016-06-22 | 2016-11-16 | 福州大学 | A kind of Emission in Cubic Ca2si thermoelectric material and preparation method thereof |
-
2019
- 2019-08-07 CN CN201910725016.1A patent/CN110354959A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200945443Y (en) * | 2006-05-24 | 2007-09-12 | 中国科学院上海微系统与信息技术研究所 | Ball-milling pot capable of bearing high pressure and vacuum |
| CN102199191A (en) * | 2010-03-24 | 2011-09-28 | 中国科学院大连化学物理研究所 | Sealing system composed of small anaerobic operation bags and chromatography column in series |
| CN202527229U (en) * | 2012-04-30 | 2012-11-14 | 长沙天创粉末技术有限公司 | High-temperature planetary ball mill |
| KR101253525B1 (en) * | 2012-10-11 | 2013-04-11 | 이창훈 | Plenary ballmill apparatus |
| CN103394689A (en) * | 2013-07-31 | 2013-11-20 | 西安交通大学 | Atmosphere protection glove bag |
| CN104492552A (en) * | 2014-11-25 | 2015-04-08 | 广西大学 | Low-temperature planetary high-energy bowl mill |
| CN205280437U (en) * | 2015-11-03 | 2016-06-01 | 幸罗平 | Exempt from to seal by fusing, exempt from overcoat of glass sampling pipe of cutting |
| CN205236085U (en) * | 2015-12-21 | 2016-05-18 | 刘丹 | Wear -resisting ball -milling jar of carbide at no dead angle |
| CN106116587A (en) * | 2016-06-22 | 2016-11-16 | 福州大学 | A kind of Emission in Cubic Ca2si thermoelectric material and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 李国凯: "医用可降解Zn-Mg/HAp生物复合材料的制备及其组织性能表征", 中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑, no. 09, pages 10 - 11 * |
| 李国凯: "医用可降解Zn-Mg/HAp生物复合材料的制备及其组织性能表征", 中国优秀硕士学位论文全文数据库工程科技I辑, no. 09, pages 10 - 11 * |
| 杨凯: "长周期堆垛有序结构增强Mg-Zn-Y-Mn-(B)合金的研究", 中国优秀硕士学位论文全文数据库工程科技I辑, no. 01, pages 16 * |
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