CN1528524A - Low-temperature vertical agitated ball mill with multi cooling modes - Google Patents
Low-temperature vertical agitated ball mill with multi cooling modes Download PDFInfo
- Publication number
- CN1528524A CN1528524A CNA2003101079421A CN200310107942A CN1528524A CN 1528524 A CN1528524 A CN 1528524A CN A2003101079421 A CNA2003101079421 A CN A2003101079421A CN 200310107942 A CN200310107942 A CN 200310107942A CN 1528524 A CN1528524 A CN 1528524A
- Authority
- CN
- China
- Prior art keywords
- type container
- dewar type
- ball grinder
- dewar
- liquid
- 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.)
- Granted
Links
Images
Landscapes
- Disintegrating Or Milling (AREA)
Abstract
The invention provides a multiple cooling-mode low-temperature vertical agitated ball mill, mainly composed of Duwar container and ball milling tank, where the Duwar container has a concentric layered structure, the sealed space between the inner and outer tubes of the Duwar container forms vacuum adiabatic interlayer and is full of thermal insulation material, the liquid and gas closed circuits are linked with each other between the ball milling tank and the Duwar container. It can pour low temperature liquid into the Duwar container and the ball milling tank, respectively or synchronously, and also guide the low temperature liquid or gas in the Duwar container into the ball milling tank, and freely changes between various cooling modes through the control valve in the communicating pipeline and adjust liquid flux and gas pressure in each link, thus heightening the ball milling efficiency.
Description
Technical field:
The present invention relates to the vertical low-temp stirring ball grinder of one kind of multiple types of cooling, realize the low temperature ball milling by the cryogenic liquid cooling working medium, and can under the multiple type of cooling, freely switch, be mainly used in the efficient pulverizing of material and the production preparation of nano material.
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, and the reaction heating of the impact kinetic energy of abrading-ball and material self will cause that 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.Agitated ball mill is simple in structure, and the efficient height is suitable for the amplification step by step from the laboratory to the suitability for industrialized production.Existing various agitated ball mill generally adopts the method for Forced water cooling or forced draft cooling.In order to obtain lower ball milling temperature, can adopt cryogenic liquids such as liquid nitrogen as cooling working medium, as Chinese invention patent " vertical low-temp stirring ball grinder " (publication number: CN 1431072A) designed cooling sandwith layer and thermal insulating layer in the ball grinder outside, fill with liquid nitrogen in the cooling sandwith layer as cooling working medium, thermal insulating layer is high vacuum and is full of multilayer insulant, realize the low temperature high-energy ball milling with less liquid nitrogen loss, significantly improved the refinement speed and the refinement level of abrasive grain and microstructure thereof.But cold passes to abrasive material and mill Jie of ball grinder inside in this design with heat-conducting mode from the ball grinder outside, the low temperature nitrogen that liquid nitrogen vaporization produces in the cooling sandwith layer directly is discharged in the environment in addition, in fact influenced utilization ratio, and can not effectively regulate control the ball milling temperature to cold.
Summary of the invention:
The objective of the invention is at the situation that adopts the cryogenic liquid cooling working medium, the vertical low-temp stirring ball grinder of one kind of multiple types of cooling is provided, obtain alap ball milling temperature with the least possible loss of working substance, improve the utilization ratio of cold, and can realize adjusting control temperature.
For realizing such purpose, the technical solution adopted in the present invention is: the ball mill of design mainly is made up of Dewar type container and ball grinder two parts, Dewar type container is concentric hierarchy, enclosure space between Dewar type container inner core and the Dewar type container urceolus forms the vacuum insulation interlayer and is full of insulation material, is interconnected with fluid path and gas passage between ball grinder and the Dewar type container.When ball mill is worked, can distinguish or simultaneously in Dewar type container and ball grinder, inject cryogenic liquid, also cryogenic liquid in the Dewar type container or cryogenic gas can be imported in the ball grinder, between the various types of cooling, freely change and regulate the fluid flow and the gas pressure of each link by the by-pass valve control in the connecting pipeline, thereby realize operating temperature control ball mill.
The vertical low-temp stirring ball grinder concrete structure of the multiple type of cooling of the present invention is: the concentric hierarchy that Dewar type container adopts Dewar type container inner core, Dewar type container urceolus and Dewar type container shell to form, the three fuses by the Dewar type container flange, enclosure space formation thermal insulating layer between Dewar type container inner core and the Dewar type container urceolus wherein is a high vacuum and be full of insulation material.Insulation material can be with concentric wound multi insulation quilt or metal forming.Dewar type container inlet, liquid outlet and gas outlet form by the conduit along continuous straight runs passes Dewar type container inner core, urceolus and Dewar type container shell successively, wherein liquid outlet links to each other with catheter, the other end of catheter is immersed in the cryogenic liquid all the time near the bottom of Dewar type container inner core.The Dewar type container inlet is positioned at the Dewar type container bottom, links to each other with cryogenic liquid storage tank with Dewar type container feed liquor flowmeter by Dewar type container feed liquor valve; Dewar type container liquid outlet and Dewar type container gas outlet are positioned at Dewar type container top.Be static seal between ball grinder and Dewar type container flange and the ball grinder lid and be connected, mixing arm links together by rotation axis seal and ball grinder lid, and is connected with electric machine main shaft by shaft joint.The ball grinder import both can link to each other with cryogenic liquid storage tank with ball grinder feed liquor flowmeter by ball grinder feed liquor valve, also can be connected with Dewar type container liquid outlet and Dewar type container gas outlet by fluid path and gas passage respectively; The ball grinder outlet then links to each other with the ball grinder air outlet valve with the ball grinder air gauge.
Cryogenic liquid cooling working medium of the present invention comprises liquid nitrogen, liquid argon, liquid helium, liquid hydrogen, liquid oxygen etc.
Dewar type container of the present invention and ball grinder both can have been taked separately independently liquid road and gas circuit work, also can take the liquid road or the gas circuit work that are interconnected, therefore can select the following different type of cooling to carry out the regulation and control of ball mill operating temperature.
First kind of type of cooling, only in Dewar type container, inject cryogenic liquid, this moment, cold passed to abrasive material and mill Jie of ball grinder inside with heat-conducting mode from the ball grinder outside, the cryogenic gas that the liquid working substance evaporation produces in the Dewar type container directly is discharged in the environment, and cryogenic energy utilization efficient is minimum under this mode.
Second kind of type of cooling, simultaneously in Dewar type container and ball grinder, inject cryogenic liquid, this moment, the liquid working substance of ball grinder inside can directly pass to abrasive material and mill Jie to cold with heat-conducting mode, cryogenic energy utilization efficient is increased, but the cryogenic gas that the liquid working substance evaporation produces in Dewar type container and the ball grinder still directly is discharged in the environment, causes the waste of cold.
The third type of cooling, earlier cryogenic liquid is injected in the Dewar type container, then by the liquid working substance in the Dewar type container being injected in the ball grinder from supercharging, and the cryogenic gas that liquid working substance evaporation in the ball grinder is produced is discharged in the environment, and this type of cooling has reduced loss of refrigeration capacity in the cryogenic liquid course of conveying.
The 4th kind of type of cooling, earlier cryogenic liquid is injected in the Dewar type container, the cryogenic gas that the evaporation of liquid working substance in the Dewar type container is produced is injected in the ball grinder then, in the heat convection mode a part of cold is passed to and to be discharged into after abrasive material and mill are situated between in the middle of the environment again, therefore cryogenic energy utilization is most effective under this mode.
The present invention can the on off state by connecting pipeline selects the type of cooling of ball mill, and overall input that can be by the gentle valve regulation cold of liquid valve in the path and in the distribution of each link, thus the operating temperature of control ball mill.The present invention realizes the low temperature high-energy ball milling with less cryogenic liquid loss, the refinement speed and the refinement level of abrasive grain and microstructure thereof have been significantly improved, and significantly improved the production efficiency of ball mill, and can prepare the material that conventional ball mill is difficult to prepare.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
1. motors among the figure, 2. shaft joint, 3. rotation axis seal, 4. ball grinder air gauge, 5 ball grinder air outlet valves, 6. ball grinder outlet, 7. ball grinder lid, 8 Dewar type container flanges, 9. Dewar type container inner core, 10. Dewar type container urceolus, 11. Dewar type container shells, 12. insulation materials, 13. ball grinder, 14. mixing arms, 15. cryogenic liquids, 16. catheter, 17. Dewar type container feed liquor valves, 18. Dewar type container feed liquor flowmeters, 19. Dewar type container inlet, 20. the Dewar type container liquid outlet, 21. Dewar type container gas outlets, 22. Dewar type container air gauges, 23. ball grinder intake valve, 24. the Dewar type container air outlet valve, 25. Dewar type container liquid valves, 26. Dewar type container fluid flowmeters, 27. ball grinder feed liquor flowmeter, 28. ball grinder feed liquor valve, 29. ball grinder imports, 30. cryogenic liquid storage tank.
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 made up of ball grinder 13 and Dewar type container two parts, wherein Dewar type container is concentric hierarchy, therefrom mind-set is followed successively by Dewar type container inner core 9, Dewar type container urceolus 10 and Dewar type container shell 11 outward, the three fuses by the Dewar type container flange 8 of upper end, enclosure space formation thermal insulating layer between Dewar type container inner core 9 and the Dewar type container urceolus 10 wherein is a high vacuum and be full of insulation material 12.The Dewar type container bottom has Dewar type container inlet 19, top that Dewar type container liquid outlet 20 and Dewar type container gas outlet 21 are arranged, three openings form by the conduit along continuous straight runs passes Dewar type container inner core 9, Dewar type container urceolus 10 and Dewar type container shell 11 successively, wherein Dewar type container liquid outlet 20 links to each other with catheter 16, the other end of catheter 16 is immersed in the cryogenic liquid 15 all the time near the bottom of Dewar type container inner core 9.Be static seal between ball grinder 13 and Dewar type container flange 8 and the ball grinder lid 7 and be connected, mixing arm 14 links together by rotation axis seal and ball grinder lid 7, and mixing arm 14 is connected with motor 1 main shaft by shaft joint 2.Ball grinder import 29 and ball grinder outlet 6 is arranged on the ball grinder lid 7.Comprise with gas circuit with the liquid road that ball grinder 13 links to each other with Dewar type container: Dewar type container inlet 19 links to each other with cryogenic liquid storage tank 30 with Dewar type container feed liquor flowmeter 18 by Dewar type container feed liquor valve 17; Ball grinder import 29 links to each other with cryogenic liquid storage tank 30 with ball grinder feed liquor flowmeter 27 by ball grinder feed liquor valve 28; Dewar type container liquid outlet 20 links to each other with ball grinder import 29 with Dewar type container liquid valve 25 by Dewar type container fluid flowmeter 26; Dewar type container gas outlet 21 links to each other with ball grinder import 29 by ball grinder intake valve 23.Gas pressure in ball grinder 13 and the Dewar type container is measured by ball grinder air gauge 4 and Dewar type container air gauge 22 respectively, and is discharged in the environment by ball grinder air outlet valve 5 and Dewar type container air outlet valve 24 respectively.
Dewar type container of the present invention and ball grinder 13 both can have been taked separately independently liquid road and gas circuit work, also can take the liquid road or the gas circuit work that are interconnected, and can between the various types of cooling, freely change and regulate the fluid flow and the gas pressure of each link by the by-pass valve control in the connecting pipeline, thereby realize regulation and control the ball milling temperature.
Embodiment 1 has only Dewar type container feed liquor valve 17 and Dewar type container air outlet valve 24 to be in open mode, cryogenic liquid 15 from cryogenic liquid storage tank 30, flow through Dewar type container feed liquor flowmeter 18 and Dewar type container feed liquor valve 17, inject Dewar type container inner core 9 from Dewar type container inlet 19, ball grinder 13 is flooded certain altitude, this moment, cold passed to abrasive material and mill Jie by ball grinder 13 with heat-conducting mode, the cryogenic gas that is produced in the Dewar type container inner core 9 Dewar type container air outlet valve 24 of flowing through from Dewar type container gas outlet 21 directly is discharged into the environment, cryogenic gas pressure can be shown by Dewar type container air gauge 22 in the Dewar type container inner core 9, and is regulated by Dewar type container air outlet valve 24.
More than among each embodiment, cryogenic liquid total amount from cryogenic liquid storage tank 30 input ball mills, cryogenic liquid between Dewar type container inner core 9 and the ball grinder 13 or cryogenic gas flow, the cryogenic gas pressure of Dewar type container inner core 9 and ball grinder 13 inside and the velocity of discharge etc., can control by liquid valve and air valve in the connecting pipeline, thereby regulate the distribution of cold, make the injection of cryogenic liquid working medium and loss, form metastable ball milling temperature near balance in each link.
The adoptable cryogenic liquid cooling working medium of the present invention comprises liquid nitrogen, liquid argon, liquid helium, liquid hydrogen, liquid oxygen etc., for effectively reducing cold damage to environment, in the thermal insulating layer between Dewar type container inner core 9 and the Dewar type container urceolus 10, be designed to high vacuum and filled heat insulating material 12, for example concentric wound multi insulation quilt, metal forming etc.
Claims (2)
1, the vertical low-temp stirring ball grinder of one kind of multiple types of cooling, comprise (13) two parts of Dewar type container and ball grinder, it is characterized in that Dewar type container is by Dewar type container inner core (9), Dewar type container urceolus (10) and Dewar type container shell (11) are formed concentric hierarchy, fuse by Dewar type container flange (8), enclosure space between Dewar type container inner core (9) and the Dewar type container urceolus (10) forms thermal insulating layer, wherein be high vacuum and be full of insulation material (12), Dewar type container inlet (19) is arranged at the Dewar type container bottom, Dewar type container liquid outlet (20) and Dewar type container gas outlet (21) are arranged at top, wherein Dewar type container liquid outlet (20) links to each other with catheter (16), the other end of catheter (16) is near the bottom of Dewar type container inner core (9), be immersed in the cryogenic liquid (15), being static seal between ball grinder (13) and Dewar type container flange (8) and the ball grinder lid (7) is connected, mixing arm (14) links together by rotation axis seal (3) and ball grinder lid (7), mixing arm (14) is connected with motor (1) main shaft by shaft joint (2), Dewar type container inlet (19) links to each other with cryogenic liquid storage tank (30) with Dewar type container feed liquor flowmeter (18) by Dewar type container feed liquor valve (17), ball grinder import (29) links to each other with cryogenic liquid storage tank (30) with ball grinder feed liquor flowmeter (27) by ball grinder feed liquor valve (28), Dewar type container liquid outlet (20) links to each other with ball grinder import (29) with Dewar type container liquid valve (25) by Dewar type container fluid flowmeter (26), Dewar type container gas outlet (21) links to each other with ball grinder import (29) by ball grinder intake valve (23), ball grinder outlet (6) links to each other with ball grinder air outlet valve (5) with ball grinder air gauge (4) respectively, and Dewar type container gas outlet (21) link to each other with Dewar type container air outlet valve (24) with Dewar type container air gauge (22) respectively.
2, the vertical low-temp stirring ball grinder of the multiple type of cooling as claimed in claim 1 is characterized in that described insulation material (12) is concentric wound multi insulation quilt or metal forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310107942 CN1265888C (en) | 2003-10-16 | 2003-10-16 | Low-temperature vertical agitated ball mill with multi cooling modes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310107942 CN1265888C (en) | 2003-10-16 | 2003-10-16 | Low-temperature vertical agitated ball mill with multi cooling modes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1528524A true CN1528524A (en) | 2004-09-15 |
| CN1265888C CN1265888C (en) | 2006-07-26 |
Family
ID=34304545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310107942 Expired - Fee Related CN1265888C (en) | 2003-10-16 | 2003-10-16 | Low-temperature vertical agitated ball mill with multi cooling modes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1265888C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108371996A (en) * | 2018-05-16 | 2018-08-07 | 湖南行者环保科技有限公司 | Ball milling equipment |
| CN109238489A (en) * | 2018-10-31 | 2019-01-18 | 浙江联诚氨基材料有限公司 | A kind of temperature monitoring device of ball mill |
| CN110369053A (en) * | 2019-08-16 | 2019-10-25 | 东华大学 | A kind of laboratory multifunctional stirring formula ball mill |
| CN111289378A (en) * | 2020-03-31 | 2020-06-16 | 西安工程大学 | Low-temperature wire material tensile test device and method |
| CN111804212A (en) * | 2020-07-08 | 2020-10-23 | 北京中科富海低温科技有限公司 | Dewar device with magnetic stirring |
-
2003
- 2003-10-16 CN CN 200310107942 patent/CN1265888C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108371996A (en) * | 2018-05-16 | 2018-08-07 | 湖南行者环保科技有限公司 | Ball milling equipment |
| CN109238489A (en) * | 2018-10-31 | 2019-01-18 | 浙江联诚氨基材料有限公司 | A kind of temperature monitoring device of ball mill |
| CN110369053A (en) * | 2019-08-16 | 2019-10-25 | 东华大学 | A kind of laboratory multifunctional stirring formula ball mill |
| CN111289378A (en) * | 2020-03-31 | 2020-06-16 | 西安工程大学 | Low-temperature wire material tensile test device and method |
| CN111804212A (en) * | 2020-07-08 | 2020-10-23 | 北京中科富海低温科技有限公司 | Dewar device with magnetic stirring |
| CN111804212B (en) * | 2020-07-08 | 2021-10-26 | 北京中科富海低温科技有限公司 | Dewar device with magnetic stirring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1265888C (en) | 2006-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101847899B (en) | Internal evaporating, cooling and circulating system of motor stator winding | |
| CN1265888C (en) | Low-temperature vertical agitated ball mill with multi cooling modes | |
| US7591138B2 (en) | Process for producing slush fluid and apparatus therefor | |
| CN113566470B (en) | Hydrogen slurry generator, system and method for continuously preparing hydrogen slurry in batches | |
| CN103285781B (en) | Supergravity hydrate synthesis device | |
| WO2016035105A1 (en) | Refrigeration, or thermal, energy storage system by phase change materials | |
| CN112410572A (en) | Melting and purifying device for liquid metal loop | |
| CN101096010A (en) | Method for continuously preparing spray strengthened aqua compound and device thereof | |
| CN110853832A (en) | Superconducting cable cooling system | |
| Isselhorst et al. | Two-stage metal hydride heat transformer laboratory model | |
| CN2497861Y (en) | Low-temperature reactor device | |
| CN107202245A (en) | A kind of hydrogen storing apparatus of metal hydrides and method of work | |
| CN115691842B (en) | Pressure vessel external enhanced heat transfer system and reactor system | |
| CN109637328A (en) | Temperature-adjusting high-pressure water supply system for three-dimensional simulation test of pressure reduction and trial production of deepwater combustible ice | |
| CN212069066U (en) | Plasma power supply cooling system for producing superfine carbon powder | |
| CN109115020B (en) | Method for enhancing convection heat transfer of phase interface | |
| CN2814264Y (en) | Modular cooling water machine set | |
| CN102313396A (en) | YXY type vacuum pressurized injection and vacuum evaporation refrigerating device | |
| CN220707828U (en) | Supercooled liquid nitrogen circulating device for cooling superconducting cable | |
| CN217465005U (en) | Pressurizing cold storage device | |
| CN113686767B (en) | Multi-flow-velocity dynamic corrosion experimental device and experimental method in liquid environment | |
| CN218422825U (en) | Tubular reactor unit and system | |
| CN220707830U (en) | Supercooled liquid nitrogen circulating device convenient to overhaul | |
| CN213601631U (en) | Passive natural circulation lead bismuth air-entrapping device for experiment | |
| CN218452164U (en) | Device for reducing temperature of process gas inlet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060726 Termination date: 20091116 |