CN204007078U - A kind of vacuum drying oven - Google Patents
A kind of vacuum drying oven Download PDFInfo
- Publication number
- CN204007078U CN204007078U CN201420428360.7U CN201420428360U CN204007078U CN 204007078 U CN204007078 U CN 204007078U CN 201420428360 U CN201420428360 U CN 201420428360U CN 204007078 U CN204007078 U CN 204007078U
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- inner bag
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- drying oven
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Abstract
The utility model belongs to diamond process equipment field, be specially a kind of for by the vacuum drying oven of feedstock purification, comprise the vacuum unit and the body of heater that are connected by vacuum tube, described body of heater comprises inner bag and outer wall, it between inner bag and outer wall, is heat insulation cavity, this heat insulation cavity arranges the valvular air inlet of tool and exhaust outlet, air inlet place is provided with air blast, outer wall inner side arranges insulation material, inner bag outside is uniformly distributed some heating components, each heating component connects the temp controlled meter for displays temperature, inner bag inside arranges some pallets, each pallet is uniformly distributed some through holes, the opening part setting of inner bag has the cover plate of sealing ring, vacuum unit is by vacuum tube and inner bag internal communication.The utility model refining effect is good, can fast cooling after having purified, and duty cycle is short, and secondary pollution can not occur, simple in structure, long service life.
Description
Technical field
The utility model belongs to diamond process equipment field, is specially a kind of for by the vacuum drying oven of feedstock purification.
Background technology
Diamond not only can be processed into priceless jewelry, in industry, is also well worth doing.Its hardness is high, wearability good, can be widely used in cutting, grinding, probing; Because thermal conductivity is high, electrical insulating property is good, can be used as the heat sink of semiconductor device; It has good light transmission and corrosion resistance, in electronics industry, is also used widely.
Mainly that graphite is prepared diamond at present, before preparation, generally need to such as, improve the conversion ratio of graphite to the certain catalyst (Fe, Ni etc.) of graphite powder the inside interpolation, but catalyst under conventional environment often easily by environmental oxidation, cause the purity of catalyst to reduce, affect the preparation of diamond.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of vacuum drying oven is provided, and can realize the feedstock purification before diamond preparation, ensures efficiently normally carrying out of production.
For realizing above-mentioned technical purpose, the scheme that the utility model provides is: a kind of vacuum drying oven, comprise the vacuum unit and the body of heater that are connected by vacuum tube, described body of heater comprises inner bag and outer wall, it between inner bag and outer wall, is heat insulation cavity, this heat insulation cavity arranges the valvular air inlet of tool and exhaust outlet, air inlet place is provided with air blast, outer wall inner side arranges insulation material, inner bag outside is uniformly distributed some heating components, each heating component connects the temp controlled meter for displays temperature, inner bag inside arranges some pallets, each pallet is uniformly distributed some through holes, the opening part setting of inner bag has the cover plate of sealing ring, vacuum unit is by vacuum tube and inner bag internal communication.
And described heating component comprises the resistance wire coiling in the shape of a spiral in inner bag outside, and inner bag arranged outside is held this resistance wire groove.
And described resistance wire is containing molybdenum resistance wire.
And the sealing ring place on described cover plate arranges water-cooling circular tube.
The utility model refining effect is good, can fast cooling after having purified, and duty cycle is short, and secondary pollution can not occur, simple in structure, long service life.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is inner bag outboard structure schematic diagram.
Fig. 3 is the A-A face structural representation of Fig. 1.
Wherein, 1, body of heater, 2, inner bag, 3, outer wall, 4, vacuum unit, 5, vacuum tube, 6, heat insulation cavity, 7, air inlet, 8, exhaust outlet, 9, air blast, 10, insulation material, 11, temp controlled meter, 12, pallet, 13, through hole, 14, cover plate, 15, sealing ring, 16, water-cooling circular tube, 17, resistance wire.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The present embodiment provides a kind of vacuum drying oven, as shown in Fig. 1 ~ Fig. 3, comprise the vacuum unit 4 and the body of heater 1 that are connected by vacuum tube 5, described body of heater 1 comprises inner bag 2 and outer wall 3, between inner bag 2 and outer wall 3, it is heat insulation cavity 6, this heat insulation cavity 6 arranges the valvular air inlet 7 of tool and exhaust outlet 8, air inlet 7 places are provided with air blast 9, outer wall 3 inner sides arrange insulation material 10, inner bag 2 outsides are uniformly distributed some heating components, each heating component connects the temp controlled meter 11 for displays temperature, inner bag 2 inside arrange some pallets 12, each pallet 12 is uniformly distributed some through holes 13, can ensure the heat exchange effect of inner bag 2 inside.The opening part setting of inner bag 2 has the cover plate 14 of sealing ring 15, and vacuum unit 4 is by vacuum tube 5 and inner bag 2 internal communication.
Further, described heating component comprises the resistance wire 17 coiling in the shape of a spiral in inner bag 2 outsides, and inner bag 2 arranged outside are held this resistance wire 17 grooves.Can provide support power for resistance wire 17, abandon the design that resistance wire 17 drops naturally in the past, can effectively avoid the resistance wire 17 pendants phenomenon of disconnection for a long time, greatly extend the service life of resistance wire 17.
Further, described resistance wire 17 is containing molybdenum resistance wire, can reach higher heating-up temperature, and longer service life.
Further, sealing ring 15 places on described cover plate 14 arrange water-cooling circular tube 16, can slow down the aging of sealing ring 15, extend its service life.
When the utility model uses, the mixture of graphite and catalyst is inserted on some pallets 12 of inner bag 2, cover cover plate 14 inner bag 2 is sealed, start vacuum unit 4 inner bag 2 is reduced pressure, until expection pressure keep this pressure.The valve of closing heat insulation cavity 6 two ends air inlets 7 and exhaust outlet 8, heating component heats inner bag 2, until desired temperature, can be by temp controlled meter 11 readings.Oxidized catalyst is in the environment of such high temperature, low pressure, more easily be reduced agent---graphite reduction, and reduce more fully, and after completing, operation can obtain the mixture of highly purified catalyst and graphite, for changing into diamond, next step carries out adequate preparation.After operation, for accelerating the cooling of body of heater 1, can open the valve of heat insulation cavity 6 two ends air inlets 7 and exhaust outlet 8, form cross-ventilation cooling, and accelerate air-cooled speed by air blast 9.This air blast 9 can be arranged at air inlet 7 places, also can be arranged at exhaust outlet 8 places, or air inlet 7 and exhaust outlet 8 respectively arrange one.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvement or distortion, these improvement or distortion also should be considered as protection domain of the present utility model.
Claims (4)
1. a vacuum drying oven, comprise the vacuum unit and the body of heater that are connected by vacuum tube, it is characterized in that: described body of heater comprises inner bag and outer wall, it between inner bag and outer wall, is heat insulation cavity, this heat insulation cavity arranges the valvular air inlet of tool and exhaust outlet, air inlet place is provided with air blast, outer wall inner side arranges insulation material, inner bag outside is uniformly distributed some heating components, each heating component connects the temp controlled meter for displays temperature, inner bag inside arranges some pallets, each pallet is uniformly distributed some through holes, the opening part setting of inner bag has the cover plate of sealing ring, vacuum unit is by vacuum tube and inner bag internal communication.
2. a kind of vacuum drying oven according to claim 1, is characterized in that: described heating component comprises the resistance wire coiling in the shape of a spiral in inner bag outside, and inner bag arranged outside is held this resistance wire groove.
3. a kind of vacuum drying oven according to claim 2, is characterized in that: described resistance wire is containing molybdenum resistance wire.
4. a kind of vacuum drying oven according to claim 1, is characterized in that: the sealing ring place on described cover plate arranges water-cooling circular tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420428360.7U CN204007078U (en) | 2014-07-31 | 2014-07-31 | A kind of vacuum drying oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420428360.7U CN204007078U (en) | 2014-07-31 | 2014-07-31 | A kind of vacuum drying oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204007078U true CN204007078U (en) | 2014-12-10 |
Family
ID=52047067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420428360.7U Expired - Fee Related CN204007078U (en) | 2014-07-31 | 2014-07-31 | A kind of vacuum drying oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204007078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197695A (en) * | 2014-07-31 | 2014-12-10 | 红安安达新材料有限责任公司 | Vacuum furnace |
-
2014
- 2014-07-31 CN CN201420428360.7U patent/CN204007078U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197695A (en) * | 2014-07-31 | 2014-12-10 | 红安安达新材料有限责任公司 | Vacuum furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150731 |
|
| EXPY | Termination of patent right or utility model |