CN106929694B - A kind of copper coil magnesium reduction jar electromagnetic induction heater of high temperature - Google Patents
A kind of copper coil magnesium reduction jar electromagnetic induction heater of high temperature Download PDFInfo
- Publication number
- CN106929694B CN106929694B CN201710313148.4A CN201710313148A CN106929694B CN 106929694 B CN106929694 B CN 106929694B CN 201710313148 A CN201710313148 A CN 201710313148A CN 106929694 B CN106929694 B CN 106929694B
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- CN
- China
- Prior art keywords
- insulating layer
- induction coil
- coil
- electromagnetic induction
- high temperature
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/20—Obtaining alkaline earth metals or magnesium
- C22B26/22—Obtaining magnesium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
Abstract
The present invention relates to vacuum metallurgy equipment technical fields, specially a kind of copper coil magnesium reduction jar electromagnetic induction heater of high temperature, including reductive jar (1), the first insulating layer (2), induction coil (3) and the second insulating layer (4).It is provided with insulating layer outside the reductive jar (1)；The induction coil (3) is positioned between the first insulating layer (2) and the second insulating layer (4), and operating temperature is 900~1000 DEG C.Reasonable design of the present invention can effectively reduce the total losses of magnesium-reduced system, improve energy transfer efficiency；It is mainly used for the production of the high-vapor-pressure metals thermal reduction such as magnesium, lithium, strontium, calcium.
Description
Technical field
The invention belongs to vacuum metallurgy equipment technical fields, and in particular to a kind of copper coil magnesium reduction jar electromagnetism sense of high temperature
Heating device is answered, the equipment that thermal reduction prepares the high-vapor-pressure metals such as magnesium, lithium, strontium, calcium is can be used for.
Background technology
The high-vapor-pressure metals such as magnesium, lithium, strontium, calcium can under vacuum be prepared using thermal reduction.At present in metal
In magnesium production field, widely used reduction apparatus is to directly heat the reductive jar made of heat-resisting alloy using combustion gas etc..This
Method is limited by reduction jar structure and material property, and reaction temperature is low, heat transfer is slow, high energy consumption, and due to the oxidation of reductive jar
Equal loss largely consumes expensive nichrome.
A kind of sensing heating reduction magnesium smelting device is disclosed in utility model patent number ZL 96247592.0, wherein disclosing
One technical characterstic makes to be heated workpiece self-heating using sensing heating in heating process, and induction coil and power supply are located
In cold conditions, thermal losses is small, and low energy consumption, and the thermal efficiency significantly improves.But in the technical scheme, it restores and is laid on tank wall
Lightweight thermal insulation layer is arranged with the induction coil with tank body phase insulation on tank wall, and description is clear in its claims
The relationship of Chu's induction coil and insulating layer so that the technology cannot achieve, if by cold conditions at induction coil described in its specification,
Reductive jar is the condition of high temperature when work, and there are heat dissipation for insulating layer.Insulating layer thickeies, and heat conduction losses are small, at induction coil
In outside insulating layer, diameter increases, and coil resistance loss increases.Consider the heat conduction losses and coil electricity of induction heating apparatus
Resistance loss, the induction coil in cold conditions are located at except insulating layer, and total losses are not optimal.
Invention content
There are contradictions to lead to nothing in order to solve to disclose in sensing heating reduction magnesium apparatus existing in the prior art by the present invention
The problem of method is realized, provides a kind of copper coil magnesium reduction jar electromagnetic induction heater of high temperature.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of copper coil magnesium reduction jar electromagnetic induction heater of high temperature, including reductive jar, the first insulating layer, the line of induction
Circle and the second insulating layer are laid with the first insulating layer on the reduction tank wall；The induction coil is positioned over the first insulating layer
Outside；It is laid with the second insulating layer outside the induction coil；It is 900~1000 DEG C that the induction coil, which uses copper wire, operating temperature,；
The electromagnetic induction heater is placed in vacuum environment or filled with the protective gas environment for mitigating copper induction coil oxidation
In.Fig. 2 gives the magnesium smelting reducing system total losses (perunit value) under different heat conduction losses with temperature residing for induction coil
Variation relation, in the case where ensureing that transimission power, copper wire quality are certain, it is seen that under different insulation layer thicknesses, i.e., any
Under heat conduction losses, with the reduction of induction coil diameter, the temperature residing for insulating layer increases, and total losses are smaller.Incuding
When coil is in insulating layer outermost, i.e. cold conditions, total losses reach maximum, and energy utilization efficiency is minimum.Copper wire fusing point is 1083
DEG C, when the maximum temperature for allowing induction coil to work reaches 1000 DEG C, Fig. 3 gives variation of the total losses with heat conduction losses
Relationship.As it can be seen that in 1000 DEG C of high temperature, there are total losses minimum values, and energy transmission efficiency to be made to reach maximum.
First insulating layer and the second insulating layer are by the lower ceramic alumina fiber of thermal coefficient and hard carbon felt structure
At, according to the first insulating layer of Temperature Distribution pair and second heat preservation layer material be arranged, temperature be not higher than 500 DEG C when, using oxygen
Change aluminium ceramic fibre as heat preservation layer material, when being higher than 500 DEG C, using hard carbon felt as heat preservation layer material.
The present invention uses above technical scheme, compared with prior art, present invention advantage specific as follows：
1, induction coil is positioned in insulating layer, and operating temperature reaches 900~1000 DEG C rather than cold conditions, in this way can be with
Reduce the total losses of reduction process, improves energy transfer efficiency；
2, the protective gas for mitigating copper induction coil oxidation is vacuumized or filled outside reductive jar, can effectively prevent incuding
Coil copper wire high-temperature oxydation.In the case of being vacuumized outside tank, tank body pressure-bearing greatly reduces, and material calorific intensity demand reduces, because
This, reductive jar need to only use common heat-resisting steel making；
When 3, working, the magnetic that the high-frequency alternating current on induction coil generates alternation in reductive jar is applied to by supply unit
.Thus induced current is generated in reductive jar.The heat that the electric current inducted in reductive jar generates is by conducting and radiating two
Kind mode heats furnace charge.By this electromagnetic induction process, electric energy contactlessly passes to reductive jar to heat reaction
Furnace charge；
4, reasonable design of the present invention can reduce the total losses of reduction process, improve energy transfer efficiency；It is mainly used for
The high-vapor-pressure metals thermal reduction such as magnesium, lithium, strontium, calcium produces.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is that present invention total losses (perunit value) under different heat conduction losses are closed with the variation of temperature residing for induction coil
System's figure；
Fig. 3 is variation relation of the total losses of the present invention with heat conduction losses；
Data referenced by insulating layer thermal coefficient when Fig. 4 is emulation.
Specific implementation mode
As shown in Figure 1, the copper coil magnesium reduction jar electromagnetic induction heater of a kind of high temperature in the present embodiment, including also
Former tank 1, the first insulating layer 2, induction coil 3 and the second insulating layer 4 are laid with the first insulating layer 2 on 1 outer wall of the reductive jar；
The induction coil 3 is positioned over outside the first insulating layer 2；It is laid with the second insulating layer 4 outside the induction coil 3；The line of induction
It is 900~1000 DEG C that circle 3, which uses copper wire, operating temperature,；The electromagnetic induction heater is placed in vacuum environment or filled with subtracting
In the protective gas environment that light copper induction coil 3 aoxidizes.
First insulating layer, 2 and second insulating layer 4 is by the lower ceramic alumina fiber of thermal coefficient and hard carbon felt
It constitutes, 1 outside wall temperature of reductive jar is 1200 DEG C, and 4 outermost of the second insulating layer is stablized by cooling device at 60 DEG C.According to
Temperature Distribution pair the first insulating layer 2 and 4 material of the second insulating layer are arranged, and when temperature is not higher than 500 DEG C, are made pottery using aluminium oxide
Porcelain fiber is as heat preservation layer material, when being higher than 500 DEG C, using hard carbon felt as heat preservation layer material.Insulating layer heat conduction when emulation
It is shown in solid in data such as Fig. 4 referenced by coefficient.
Under different insulation layer thicknesses, ensures that transimission power, copper wire quality are certain, induction coil 3 is positioned over insulating layer
Under middle different temperatures, by the changing rule of simulation analysis copper loss as shown in Fig. 2, showing that induction coil 3 is in insulating layer high
Total losses are small when warm, and when induction coil 3 allows 1000 DEG C of the maximum temperature of work, there are total losses minimum values to make energy
Utilization ratio reaches maximum, as shown in Figure 3.
Above-mentioned vacuum high-vapor-pressure metal reduction apparatus is mainly used for the high-vapor-pressure metals thermal reduction such as magnesium, lithium, strontium, calcium
Production.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although being carried out with reference to the embodiment of the present invention
It is described in detail, it will be understood by those of ordinary skill in the art that, it modifies to technical scheme of the present invention or equally replaces
It changes, without departure from the spirit and scope of technical scheme of the present invention, in the claims that the present invention should all be covered.
Claims (2)
1. a kind of copper coil magnesium reduction jar electromagnetic induction heater of high temperature, it is characterised in that：Including reductive jar (1), first
Insulating layer (2), induction coil (3) and the second insulating layer (4) are laid with the first insulating layer (2) on reductive jar (1) outer wall；
The induction coil (3) is positioned over the first insulating layer (2) outside；It is laid with the second insulating layer (4) outside the induction coil (3)；Institute
It is 900~1000 DEG C to state induction coil (3) and use copper wire, operating temperature；The electromagnetic induction heater is placed in vacuum environment
Or filled in the protective gas environment for mitigating copper induction coil (3) oxidation.
2. the copper coil magnesium reduction jar electromagnetic induction heater of high temperature according to claim 1, it is characterised in that：It is described
First insulating layer (2) and the second insulating layer (4) are made of the lower ceramic alumina fiber of thermal coefficient and hard carbon felt, according to
The first insulating layer of Temperature Distribution pair (2) and the second insulating layer (4) material are arranged, when temperature is not higher than 500 DEG C, using oxidation
Aluminium ceramic fibre is as heat preservation layer material, when being higher than 500 DEG C, using hard carbon felt as heat preservation layer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710313148.4A CN106929694B (en) | 2017-05-05 | 2017-05-05 | A kind of copper coil magnesium reduction jar electromagnetic induction heater of high temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710313148.4A CN106929694B (en) | 2017-05-05 | 2017-05-05 | A kind of copper coil magnesium reduction jar electromagnetic induction heater of high temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106929694A CN106929694A (en) | 2017-07-07 |
| CN106929694B true CN106929694B (en) | 2018-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710313148.4A Expired - Fee Related CN106929694B (en) | 2017-05-05 | 2017-05-05 | A kind of copper coil magnesium reduction jar electromagnetic induction heater of high temperature |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107937735A (en) * | 2017-12-29 | 2018-04-20 | 山西大学 | A kind of efficient magnesium reduction jar of electromagnetic induction heating |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2265379Y (en) * | 1996-12-21 | 1997-10-22 | 蒋黎民 | Device for obtaining mangesium by induction heating reduction |
| US6179897B1 (en) * | 1999-03-18 | 2001-01-30 | Brookhaven Science Associates | Method for the generation of variable density metal vapors which bypasses the liquidus phase |
| WO2005103309A1 (en) * | 2004-04-26 | 2005-11-03 | Fos International S.A. | Metallothermic process for magnesium production and vacuum-induction furnace thereto |
| CN201942729U (en) * | 2010-12-13 | 2011-08-24 | 昆明理工大学 | Semi-continuous vacuum induction heating magnesium reduction furnace |
| CN102564125A (en) * | 2011-04-20 | 2012-07-11 | 泰州杰利瑞节能科技发展有限公司 | Ultrasonic-frequency induction heating smelting furnace |
| CN104567369A (en) * | 2014-12-17 | 2015-04-29 | 泰州杰利瑞节能科技发展有限公司 | Supersonic frequency electromagnetic induction heating smelting furnace |
| CN206814830U (en) * | 2017-05-05 | 2017-12-29 | 山西大学 | A kind of copper coil magnesium reduction jar electromagnetic induction heater of high temperature |
-
2017
- 2017-05-05 CN CN201710313148.4A patent/CN106929694B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2265379Y (en) * | 1996-12-21 | 1997-10-22 | 蒋黎民 | Device for obtaining mangesium by induction heating reduction |
| US6179897B1 (en) * | 1999-03-18 | 2001-01-30 | Brookhaven Science Associates | Method for the generation of variable density metal vapors which bypasses the liquidus phase |
| WO2005103309A1 (en) * | 2004-04-26 | 2005-11-03 | Fos International S.A. | Metallothermic process for magnesium production and vacuum-induction furnace thereto |
| CN201942729U (en) * | 2010-12-13 | 2011-08-24 | 昆明理工大学 | Semi-continuous vacuum induction heating magnesium reduction furnace |
| CN102564125A (en) * | 2011-04-20 | 2012-07-11 | 泰州杰利瑞节能科技发展有限公司 | Ultrasonic-frequency induction heating smelting furnace |
| CN104567369A (en) * | 2014-12-17 | 2015-04-29 | 泰州杰利瑞节能科技发展有限公司 | Supersonic frequency electromagnetic induction heating smelting furnace |
| CN206814830U (en) * | 2017-05-05 | 2017-12-29 | 山西大学 | A kind of copper coil magnesium reduction jar electromagnetic induction heater of high temperature |
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| CN106929694A (en) | 2017-07-07 |
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| CB03 | Change of inventor or designer information |
Inventor after: Yu Jian Inventor after: Zhang Yabin Inventor after: Yang Yongxing Inventor after: Bai Jianyun Inventor after: Wang Qi Inventor after: Yin Jiang Inventor after: Zhang Jing Inventor before: Zhang Jing Inventor before: Yu Jian Inventor before: Zhang Yabin Inventor before: Bai Jianyun Inventor before: Yin Jiang Inventor before: Wang Qi |
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