CN1431072A - Vertical type agitation ball grinding mill of low temp - Google Patents
Vertical type agitation ball grinding mill of low temp Download PDFInfo
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- CN1431072A CN1431072A CN 03115113 CN03115113A CN1431072A CN 1431072 A CN1431072 A CN 1431072A CN 03115113 CN03115113 CN 03115113 CN 03115113 A CN03115113 A CN 03115113A CN 1431072 A CN1431072 A CN 1431072A
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- ball grinder
- thermal insulating
- insulating layer
- inner core
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Abstract
A vertical low-temp stirring ball grinder features that there are a cooling sandwith layer containing liquid nitrogen and a thermal insulating vacuum layer with multiople layers of insulating material between casing and ball grinding drum and a vertical stirring arm is istalled to the center of detachable top cover.
Description
Technical field:
The present invention relates to a kind of vertical low-temp stirring ball grinder, can realize the low temperature ball milling, be used for the efficient pulverizing of material and the production preparation of nano material by liquid cooled working medium.
Background technology:
Mechanical alloying/mechanical lapping is a kind of PM technique, not only can refinement material particles and microstructure thereof, can also prepare new material by alloying process and mechanico-chemical reaction.Belong to non-equilibrium treatment technology in essence, mechanical alloying/mechanical lapping has become the important means of metastable materials such as preparation nano material, non-crystalline material, supersaturated solid solution.Ball milling is the process implementation method of mechanical alloying/mechanical lapping, and temperature is a significant effects factor in the mechanical milling process.The exothermic heat of reaction of dashing ground kinetic energy and material self of abrading-ball causes that all temperature raises.Studies show that lower ball milling temperature more helps the refinement of material particles and microstructure, help strengthening the nonequilibrium effect in the mechanical milling process.Vertical stirring mill is simple in structure, efficient is high, is suitable for the amplification step by step from the laboratory to the suitability for industrialized production.Existing various agitated ball mill or allow temperature to raise perhaps adopts Forced water cooling.Also have human liquid nitrogen or other liquid cooled working medium to replace cooling water, but the design of original ball mill causes the liquid nitrogen vaporization loss serious, cooling effectiveness can not be given full play to.
Summary of the invention:
The objective of the invention is at existing agitated ball mill adopting the inadaptability of low temperature liquid working medium such as liquid nitrogen, a kind of new vertical low-temp stirring ball grinder is provided, make it have low liquid refrigerant loss speed and high cooling effectiveness, realize high-energy ball milling under the low temperature, relative normal temperature ball milling not only production efficiency significantly improves, and can prepare the material that the normal temperature ball milling is difficult to prepare.
For realizing such purpose, in the technical scheme of the present invention, the ball mill of design has hierarchy, is followed successively by cooling sandwith layer and thermal insulating layer between ball grinder and shell, fill in the cooling sandwith layer with liquid nitrogen as cooling working medium, thermal insulating layer is high vacuum and is full of multilayer insulant.Each layer all and the flange of upper end fuse and between each layer, form independently space.
During ball mill work, mixing arm rotates, and the temperature that collision between the abrading-ball, between abrading-ball and mixing arm and the ball grinder and friction make ball grinder raises, thus the evaporation of promotion liquid nitrogen, the nitrogen that is produced can be discharged by full liquid pipe and air valve, and can regulate nitrogen pressure by air valve.---can be concentric wound multi insulation quilt, metal forming etc.---can reduce liquid nitrogen loss to greatest extent for high vacuum in the thermal insulating layer and the multilayer insulant of being filled, and improves cooling effectiveness, realizes the low temperature high-energy ball milling.
The present invention adopts thermal insulating layer in the outside of ball mill cooling sandwith layer, contacts with the direct of environment with isolated liquid nitrogen.High vacuum is in addition with concentric wound multi insulation material, makes the liquid nitrogen loss that is caused by convection heat transfer' heat-transfer by convection and radiant heat transfer low to can ignoring, and heat is conducted the loss that causes and also reduced to greatest extent.Liquid nitrogen or other cooling working medium are pumped into cooling sandwith layer through supercharging or cryogenic liquid, by liquid level sensor control liquid nitrogen height, regulate nitrogen pressure by air valve.Keep certain nitrogen pressure to help to suppress liquid nitrogen vaporization in the cooling sandwith layer.When reaching, mechanical milling process causes when stablizing, the low temperature that the material in the ball grinder is maintained fixed, and the loss speed of liquid nitrogen is lower and keep constant.
The present invention realizes the low temperature high-energy ball milling with less liquid nitrogen loss, has significantly improved the refinement speed and the refinement level of abrasive grain and microstructure thereof, and has improved the productivity effect of ball mill.The present invention can also be used to prepare the material that the normal temperature ball milling is difficult to prepare, and is particularly useful for the exploitation and the production of nano material.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
1. loam cakes among the figure, 2. flange, 3. ball grinder, 4. inner core, 5. urceolus, 6. shell, 7. liquid nitrogen, 8. insulation material, 9. feed tube, 10. valve, 11. mouths of finding time, 12. abrading-balls, 13. full liquid pipes, 14. mixing arms.
The specific embodiment:
Below in conjunction with drawings and Examples technical scheme of the present invention is described further.
Structure of the present invention as shown in Figure 1.Ball mill is a hierarchical design, and inner core 4 and urceolus 5 are arranged between ball grinder 3 and the shell 6.Being cooling sandwith layer between ball grinder 3 and the inner core 4, is thermal insulating layer between inner core 4 and the urceolus 5, is air layer between urceolus 5 and the shell 6.Fill in the cooling sandwith layer with liquid nitrogen 7 as cooling working medium, feed tube 9 and full liquid pipe 13 pass thermal insulating layer and feed cooling sandwith layer from the bottom, and full liquid pipe 13 also links to each other with air valve 10, can discharge nitrogen and regulate air pressure in the cooling sandwith layer by air valve 10.Be high vacuum and be full of concentric wound multi insulation material 8 in the thermal insulating layer, the bottom finds time mouthfuls 11.
Claims (2)
1, a kind of vertical low-temp stirring ball grinder, comprise shell (6) and ball grinder (3), it is characterized in that inner core (4) and urceolus (5) are arranged between shell (6) and the ball grinder (3), between ball grinder (3) and the inner core (4) is cooling sandwith layer, between inner core (4) and the urceolus (5) is thermal insulating layer, fill in the cooling sandwith layer with liquid nitrogen (7), feed tube (9) and full liquid pipe (13) pass thermal insulating layer and feed cooling sandwith layer from the bottom, full liquid pipe (13) links to each other with air valve (10), be high vacuum and be full of insulation material (8) in the thermal insulating layer, bottom find time mouthful (11), inner core (4), urceolus (5) and shell (6) all fuse with flange (2), loam cake (1) and flange (2) are for removably connecting, and mixing arm (14) is installed at loam cake (1) center.
2, vertical low-temp stirring ball grinder according to claim 1 is characterized in that the insulation material in the thermal insulating layer is concentric wound multi insulation quilt or metal forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03115113 CN1431072A (en) | 2003-01-23 | 2003-01-23 | Vertical type agitation ball grinding mill of low temp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03115113 CN1431072A (en) | 2003-01-23 | 2003-01-23 | Vertical type agitation ball grinding mill of low temp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1431072A true CN1431072A (en) | 2003-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03115113 Pending CN1431072A (en) | 2003-01-23 | 2003-01-23 | Vertical type agitation ball grinding mill of low temp |
Country Status (1)
| Country | Link |
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| CN (1) | CN1431072A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708159B (en) * | 2009-12-04 | 2011-06-15 | 中牧实业股份有限公司 | Preparation method for heat-sensitive medicament suspension |
| CN102445050A (en) * | 2011-12-29 | 2012-05-09 | 张翔 | Cup-shaped refrigerating appliance |
| CN103831440A (en) * | 2014-03-24 | 2014-06-04 | 山东大学 | Method for smashing amorphous band Fe78Si9B13 |
| CN105483571A (en) * | 2016-01-28 | 2016-04-13 | 同济大学 | Method for preparing amorphous magnesium alloy through ball milling method |
| CN106513149A (en) * | 2016-12-09 | 2017-03-22 | 张桂菊 | Rapid grinding and crushing machine for powder pharmaceutical production |
| CN107321451A (en) * | 2017-07-04 | 2017-11-07 | 昆明理工大学 | It is a kind of that ball-grinding machine and its application method that pure shear stripping prepares graphene are provided |
| CN108371996A (en) * | 2018-05-16 | 2018-08-07 | 湖南行者环保科技有限公司 | Ball milling equipment |
| CN110369053A (en) * | 2019-08-16 | 2019-10-25 | 东华大学 | A kind of laboratory multifunctional stirring formula ball mill |
| CN110524402A (en) * | 2019-09-09 | 2019-12-03 | 常州大学 | Bitubular high energy ball milling machine and its application method for the processing of hot-galvanized steel ironware |
| CN114308283A (en) * | 2021-12-08 | 2022-04-12 | 无锡市邦鑫伟业工业技术有限公司 | High-efficient pearl mill with prevent blockking up function |
-
2003
- 2003-01-23 CN CN 03115113 patent/CN1431072A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708159B (en) * | 2009-12-04 | 2011-06-15 | 中牧实业股份有限公司 | Preparation method for heat-sensitive medicament suspension |
| CN102445050A (en) * | 2011-12-29 | 2012-05-09 | 张翔 | Cup-shaped refrigerating appliance |
| CN103831440A (en) * | 2014-03-24 | 2014-06-04 | 山东大学 | Method for smashing amorphous band Fe78Si9B13 |
| CN105483571A (en) * | 2016-01-28 | 2016-04-13 | 同济大学 | Method for preparing amorphous magnesium alloy through ball milling method |
| CN105483571B (en) * | 2016-01-28 | 2017-07-25 | 同济大学 | A kind of method that ball-milling method prepares amorphous magnesium alloy |
| CN106513149A (en) * | 2016-12-09 | 2017-03-22 | 张桂菊 | Rapid grinding and crushing machine for powder pharmaceutical production |
| CN107321451A (en) * | 2017-07-04 | 2017-11-07 | 昆明理工大学 | It is a kind of that ball-grinding machine and its application method that pure shear stripping prepares graphene are provided |
| CN107321451B (en) * | 2017-07-04 | 2019-02-19 | 昆明理工大学 | A kind of ball-grinding machine and its application method that pure shear removing is provided and prepares graphene |
| CN108371996A (en) * | 2018-05-16 | 2018-08-07 | 湖南行者环保科技有限公司 | Ball milling equipment |
| CN110369053A (en) * | 2019-08-16 | 2019-10-25 | 东华大学 | A kind of laboratory multifunctional stirring formula ball mill |
| CN110524402A (en) * | 2019-09-09 | 2019-12-03 | 常州大学 | Bitubular high energy ball milling machine and its application method for the processing of hot-galvanized steel ironware |
| CN114308283A (en) * | 2021-12-08 | 2022-04-12 | 无锡市邦鑫伟业工业技术有限公司 | High-efficient pearl mill with prevent blockking up function |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |