CN201292397Y - Vacuum metallurgy furnace suitable for producing magnesium metal with carbon thermoreduction of magnesium oxide - Google Patents
Vacuum metallurgy furnace suitable for producing magnesium metal with carbon thermoreduction of magnesium oxide Download PDFInfo
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- CN201292397Y CN201292397Y CNU2008200817690U CN200820081769U CN201292397Y CN 201292397 Y CN201292397 Y CN 201292397Y CN U2008200817690 U CNU2008200817690 U CN U2008200817690U CN 200820081769 U CN200820081769 U CN 200820081769U CN 201292397 Y CN201292397 Y CN 201292397Y
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- graphite
- stove
- vacuum
- magnesium metal
- carbon felt
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 83
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 26
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000000395 magnesium oxide Substances 0.000 title claims abstract description 13
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 title claims description 11
- 238000005272 metallurgy Methods 0.000 title claims description 8
- 239000010439 graphite Substances 0.000 claims abstract description 57
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 51
- 238000009413 insulation Methods 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- 239000003575 carbonaceous material Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000013461 design Methods 0.000 claims description 15
- 239000007770 graphite material Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 229920001971 elastomer Polymers 0.000 claims description 10
- 239000011449 brick Substances 0.000 claims description 9
- 229920001342 Bakelite® Polymers 0.000 claims description 7
- 239000004637 bakelite Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 240000003936 Plumbago auriculata Species 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 3
- 239000011777 magnesium Substances 0.000 description 17
- 229910052749 magnesium Inorganic materials 0.000 description 16
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 241000209456 Plumbago Species 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 239000000571 coke Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 235000014380 magnesium carbonate Nutrition 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- ZBQLSHTXSSTFEW-UHFFFAOYSA-N [C+4].[O-2].[Mg+2].[O-2].[O-2] Chemical compound [C+4].[O-2].[Mg+2].[O-2].[O-2] ZBQLSHTXSSTFEW-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
- -1 this Chemical compound 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model relates to a vacuum metallurgical furnace which is suitable for the carbon thermal reduction of magnesia for producing magnesium metal and comprises a furnace top cover, a water-cool sleeve, a carbon felt maintaining furnace lining, a graphite heat insulation reflecting screen, a furnace shell, a furnace base, a graphite heating unit, a graphite heating unit base, a water-cool copper electrode, a graphite copple, a carbon material filter sieve, a graphite sleeve pipe condenser, and the like. The vacuum metallurgical furnace is provided with an independent vacuum reduction system and a magnesium metal condensing system, the independent vacuum reduction system is connected with the magnesium metal condensing system through a vacuum sealing pipeline, and the temperature of the magnesium metal condensing system can reach about 650 DEG C. The vacuum metallurgical furnace takes electricity as a heat source, adopts the cylinder vertical type notch-shaped graphite heating unit, is provided with the graphite copple with larger volume so as to contain reaction masses of a kilogram stage and is matched and provided with a corresponding electric control system and a corresponding vacuum-pumping system. The vacuum degree of the vacuum metallurgical furnace can be stabilized at about 30 Pa in a cold state, and the temperature of the vacuum metallurgical furnace can reach 1400 DEG C after about two-hour temperature rise.
Description
One, technical field
The utility model relates to a kind of carbothermic reduction magnesium oxide that is applicable to and produces the vacuum metallurgy stove of MAGNESIUM METAL, belongs to the vacuum metallurgy equipment technical field.
Two, background technology
In US 2582119 and US 2582120, disclose F. Ha Shiji (Hansgirg) reduction with carbon magnesium oxide under normal pressure and produced the smelting equipment of MAGNESIUM METAL, this complete equipment mainly comprises electric reduction furnace and metal magnesium powder condenser two portions, electric reduction furnace is vertical structure, mixture joins from vertical tube in the crucible of electric furnace and carries out carbothermic reduction, reduction temperature need remain on about 2000 ℃, magnesium vapor that produces and the mixed gas of CO enter in the lateral condenser, condenser belongs to horizontal conical structure, condenser is provided with gas jet, spraying in the condenser rapidly after the compression of a large amount of natural gas via gas compressor makes the magnesium vapor rapid condensation get off to become metal magnesium powder.This cover smelting equipment reduction temperature is than higher, and it is bigger to consume energy.This cover smelting equipment gets off the magnesium vapor rapid condensation by injecting a large amount of Sweet natural gases rapidly, and what obtain is the meal of magnesium basically, the easy spontaneous combustion blast of magnesium powder, and the security of operation of equipment is poor.Whole plant is not provided with filtration unit, contains carbon black in the metal magnesium powder that reduction obtains, and can not fuse ingot casting, needs further distillation to purify.
R. winner moral (Winand) has been carried out independent design to vacuum reducing system and MAGNESIUM METAL condenser system, and sealing and connecting device is arranged therebetween, and other have comprised devices such as vacuum-pumping system, continuous feeding and discharging system, dust-precipitator, strainer, CO burner, warehouse.The hot spots of stove is a rectangle, square section 0.23m * 0.46m, and high 1.5m, the pure magnesia brick of liner, light fire brick is heat insulation.Graphite heater is processed by tabular material, and each root power when 1800K is 12kW, be contained in the material with 4, the 5th on charge level, condense and reversed reaction at the condenser inlet place preventing.Series combination with lobe pump and rotopiston pump vacuumizes, and in lobe pump ingress and MAGNESIUM METAL condenser the vacuumometer pressure measurement is installed respectively.The operate continuously mode is carried out in experiment, and scale is pressed 20kg/h charging (wherein Mg 3kg/h), deslagging 10kg/h.During with the reaction of general magnesite and metallurgical coke, the obstruction of strainer when reacting with metallurgical coke with purer magnesite the sintering obstructing problem not taking place because of sintering causes, tried with calcined dolomite yet.
Doctor Zhong Sheng of Kunming University of Science and Technology's vacuum metallurgy and Materials Research Laboratories has carried out preliminary study to the vacuum thermolysis and the magnesian vacuum carbothermal reduction of rhombspar, though experiment has obtained MAGNESIUM METAL, because there are some defectives in reduction apparatus and condenser, the MAGNESIUM METAL amount that the result obtains is fewer, be Powdered, easily spontaneous combustion blast can not effectively be collected.Doctor Li Zhihua of this institute is afterwards by the new equipment of development, vacuum carbothermal reduction magnesium oxide has been carried out more work (patent No. of China: ZL 200510011049.8): vacuum reducing system and the system design of condensation MAGNESIUM METAL are in same device, plumbago crucible can be adorned material 100 grams, graphite heater adopts the cross sections form, the mode that the insulation furnace lining adopts the cotton heavy wall of high alumina fiber to combine with graphite heat insulating reflecting screen, adopt the W-3Re/W-25Re thermopair to carry out thermometric, adopt 2X-8 type rotary-vane vaccum pump to vacuumize, (0～650Pa) measures pressure in the stove with rotary Mcleod vacuum gauge.It is raw material that magnesium oxide or rhombspar etc. are adopted in experiment, coal is made reductive agent, under 5～45Pa vacuum condition, finish close-burning, reduction, condensation process, control the close-burning temperature at 500 ℃～800 ℃, time 30～60min, reduction temperature is at 1300 ℃～1600 ℃, 600 ℃～800 ℃ of condensing temperatures obtain purity and reach 94% crystal metal MAG block.Though doctor Li Zhihua has obtained some progress, the type of furnace is less, and material that adds and the product that obtains are all fewer, and its condenser is owing to some defectives on the structure design, and magnesium steam can not all enter condensation in the condenser, has influenced the collection rate of MAGNESIUM METAL.
Three, summary of the invention
The purpose of this utility model is that a kind of carbothermic reduction magnesium oxide that is applicable to of design is produced the vacuum metallurgy stove of MAGNESIUM METAL.This stove has independently vacuum reducing system and MAGNESIUM METAL condenser system, vacuum-packed pipe connection is arranged between two systems, the temperature of vacuum reducing system can reach 1400 ℃, the temperature of MAGNESIUM METAL condenser system can reach 650 ℃, this stove makes electricity consumption as thermal source, adopt the graphite heater of the vertical notch geometry of cylinder, this stove design has bigger volumetrical plumbago crucible, reaction mass that can the splendid attire feather weight.This stove is furnished with corresponding electric control system and vacuum-pumping system, and under cold conditions, the vacuum tightness of this stove can be stabilized in about 30Pa, the intensification through about 2 hours, and furnace temperature can reach 1400 ℃.
Fig. 1 is a composition structure iron of the present utility model, and it comprises stove top cover 1, water jacket 2, carbon felt insulation furnace lining 3, graphite heat insulating reflecting screen 4, stove shell 5, insulating fire brick 6, stove base 7, graphite heater and heating element base 8, rubber gasket 9, water-cooled copper electrode 10, bakelite insulation covering 11, graphite bolt 12, plumbago crucible 13, carbon material filter sieve 14, graphite sleeve condenser 15, vacuum suction connecting tube 16, carbon felt strainer 17, thermopair combination 18.Stove top cover 1, stove shell 5 and stove base 7 all use stainless material to make, all design has independently water jacket 2, its outer wall thickness is 5mm, the internal layer wall thickness is 8mm, connect with bolt by flange, the junction has rubber seal to carry out vacuum-sealing, the insulation furnace lining of people's stove divides top, the side, three parts in bottom, the thick carbon felt of 30mm 3 insulation furnace linings are used on top, lateral insulation furnace lining adopts carbon felt heavy wall pipe graphite heat insulating reflecting screen 4 modes that combine, the bottom is incubated the furnace lining except the thick carbon felt of place mat 20mm, on carbon felt insulation furnace lining, also placed the insulating fire brick 6 of 30mm thickness, stove heating element and base 8 use graphite material to make, heating element is designed to the shape of the perpendicular otch of cartridge type, water-cooled copper electrode 10 is connected with heating element base 8 by graphite bolt 12, the junction of water-cooled copper electrode 10 and stove base 7 is provided with rubber gasket 9 and uses bakelite insulation covering 11, crucible 13 top design have a graphite cover in the stove, the hole of a diameter 50mm has been opened in the side, this hole links to each other with graphite sleeve 15 as the MAGNESIUM METAL condenser, designed a filter sieve 14 of making of graphite material at crucible 13 and graphite sleeve 15 junctions, the aperture of this filter sieve is 2mm, has placed the thick carbon felt 17 of 10mm at the tail end of graphite sleeve 15.
Running condition from stove, the heat insulation effect of stove is good, heat leakage is fewer, stove heating element and base use graphite material to make, have and conduct electricity very well, long service life, characteristics such as high temperature resistant, the electric current of power supply system input conducts base to heating element by the water-cooled copper electrode earlier, conduct again to graphite heater through the heating element base then, electric energy changes into heat energy on graphite heater at last, make furnace temperature obtain raising, in order to guarantee the vacuum tightness in the stove, the crucible top design has a graphite cover, the hole of a diameter 50mm has been opened in the side, this hole links to each other with graphite sleeve 15 as the MAGNESIUM METAL condenser, the magnesium steam of carbothermic reduction magnesium oxide (or magnesium ore) generation can not run about like this, only can all enter in the graphite sleeve 15 and be condensed into the block magnesium of crystallization group along aperture, improved the collection rate of MAGNESIUM METAL like this, graphite sleeve is the good conductor of heat, do not need indirect heating just can guarantee that the magnesium vapor condensation becomes the block magnesium of crystallization, when condensing temperature during 650 ℃ of left and right sides, magnesium steam just may be condensed into the crystallization bulk, rather than the magnesium powder, thereby effectively prevent the spontaneous combustion and the blast of magnesium powder, improve the security of operation.
Advantage that compared with prior art has and positively effect
(1) the utility model vacuum tightness and working temperature can reach the requirement of carbothermic reduction magnesium oxide (or magnesium ore), and the stove vacuum degree of cold state is stabilized in about 30Pa, heat up through about 2 hours, and furnace temperature can reach 1400 ℃.
(2) the utility model crucible uses the common graphite material, and the stove shell uses general stainless material, the stove low cost of manufacture.
(3) the utility model can reduce the temperature of reaction of carbothermic reduction magnesium oxide (or magnesium ore) greatly, has not only reduced energy consumption, and can prolong the work-ing life of stove.It belongs to vacuum airtight container, and the uncontrollable discharge of the gas that can not react in the use (mainly being CO2, magnesium steam, CO) is very little to the influence of atmospheric environment.The magnesium steam that reaction produces enters in the condenser, and finally generates the block magnesium of crystallization group, rather than the magnesium powder, the security that has improved operating environment.
Four, description of drawings:
Fig. 1 is a composition structure iron of the present utility model, wherein 1 is the stove top cover, 2 is water jacket, and 3 are carbon felt insulation furnace lining, and 4 are graphite heat insulating reflecting screen, 5 is the stove shell, 6 is insulating fire brick, and 7 is the stove base, and 8 is graphite heater and heating element base, 9 is rubber gasket, 10 is the water-cooled copper electrode, and 11 is the bakelite insulation covering, and 12 is the graphite bolt, 13 is plumbago crucible, 14 is the carbon material filter sieve, and 15 is the graphite sleeve condenser, and 16 is the vacuum suction connecting tube, 17 is carbon felt strainer, and 18 are the thermopair combination.
Five, embodiment
Embodiment: structure as shown in Figure 1, it comprises stove top cover 1, water jacket 2, carbon felt insulation furnace lining 3, graphite heat insulating reflecting screen 4, stove shell 5, insulating fire brick 6, stove base 7, graphite heater and heating element base 8, rubber gasket 9, water-cooled copper electrode 10, bakelite insulation covering 11, graphite bolt 12, plumbago crucible 13, carbon material filter sieve 14, graphite sleeve condenser 15, vacuum suction connecting tube 16, carbon felt strainer 17, thermopair combination 18.Stove top cover 1, stove shell 5, stove base 7 all uses stainless material to make, all water jacket 2 is arranged independently is 5mm for outer wall thickness in design, the internal layer wall thickness is 8mm, connect with bolt by flange, the junction has rubber seal to carry out vacuum-sealing, the insulation furnace lining of people's stove divides top, the side, three parts in bottom, the thick carbon felt of 30mm 3 insulation furnace linings are used on top, lateral insulation furnace lining adopts carbon felt heavy wall pipe graphite heat insulating reflecting screen 4 modes that combine, the bottom is incubated the furnace lining except the thick carbon felt of place mat 20mm, on carbon felt insulation furnace lining, also placed the insulating fire brick 6 of 30mm thickness, stove heating element and base 8 use graphite material to make, heating element is designed to the shape of the perpendicular otch of cartridge type, water-cooled copper electrode 10 is connected with heating element base 8 by graphite bolt 12, the junction of water-cooled copper electrode 10 and stove base 7 is provided with rubber gasket 9 and uses bakelite insulation covering 11, crucible 13 top design have a graphite cover in the stove, the hole of a diameter 50mm has been opened in the side, this hole links to each other with graphite sleeve 15 as the MAGNESIUM METAL condenser, designed a filter sieve 14 of making of graphite material at crucible 13 and graphite sleeve 15 junctions, the aperture of this filter sieve is 2mm, has placed the thick carbon felt 17 of 10mm at the tail end of graphite sleeve 15.
The specific design parameter:
1, stove overall texture size: Φ 432 * 448mm, shell use the common stainless steel material to make;
2, crucible scantlings of the structure: Φ 180 * 215mm, use the common graphite material to make, once can adorn material 2kg at most;
3, heating element: resistance is 0.072 Ω, and structure design is the shape of the perpendicular otch of cartridge type, uses the superpower graphite material to make, and resistivity is not more than 7 μ Ω m;
4, MAGNESIUM METAL condenser: cylindric, inner diameter of steel flue 30mm, urceolus diameter 50mm, long 380mm uses the common graphite material to manufacture;
5, maximum electric power: 22KW;
6, stove vacuum tightness: vacuum degree of cold state is 30Pa;
7, stove normal working temperature: 1400 ℃.
Claims (2)
1, a kind of carbothermic reduction magnesium oxide that is applicable to is produced the vacuum metallurgy stove of MAGNESIUM METAL, it is characterized in that: it comprises stove top cover (1), water jacket (2), carbon felt insulation furnace lining (3), graphite heat insulating reflecting screen (4), stove shell (5), insulating fire brick (6), stove base (7), graphite heater and heating element base (8), rubber gasket (9), water-cooled copper electrode (10), bakelite insulation covering (11), graphite bolt (12), plumbago crucible (13), carbon material filter sieve (14), graphite sleeve condenser (15), vacuum suction connecting tube (16), carbon felt strainer (17), thermopair combination (18), stove top cover (1), stove shell (5) and stove base (7) all use stainless material to make, all design has independently water jacket (2), its outer wall thickness is 5mm, the internal layer wall thickness is 8mm, connect with bolt by flange, the junction has rubber seal to carry out vacuum-sealing, the insulation furnace lining of people's stove divides top, three parts in side and bottom, thick carbon felt (3) the insulation furnace lining of 30mm is used on top, the mode that lateral insulation furnace lining adopts carbon felt heavy wall pipe graphite heat insulating reflecting screen (4) to combine, the bottom is incubated the furnace lining except the thick carbon felt of place mat 20mm, on carbon felt insulation furnace lining, also placed the insulating fire brick (6) of 30mm thickness, stove heating element and base (8) use graphite material to make, heating element is designed to the shape of the perpendicular otch of cartridge type, water-cooled copper electrode (10) is connected with heating element base (8) by graphite bolt (12), the junction of water-cooled copper electrode (10) and stove base (7) is provided with rubber gasket (9) and uses bakelite insulation covering (11), crucible (13) top design has a graphite cover in the stove, the hole of a diameter 50mm has been opened in the side, this hole links to each other with graphite sleeve (15) as the MAGNESIUM METAL condenser, designed a filter sieve (14) of making of graphite material at crucible (13) and graphite sleeve (15) junction, the aperture of this filter sieve is 2mm, has placed the thick carbon felt (17) of 10mm at the tail end of graphite sleeve (15).
2, the carbothermic reduction magnesium oxide that is applicable to according to claim 1 is produced the vacuum metallurgy stove of MAGNESIUM METAL, it is characterized in that: the stove overall texture is of a size of Φ 432 * 448mm, shell uses the common stainless steel material to make, the crucible scantlings of the structure is Φ 180 * 215mm, the use graphite material is made, heating element is resistance 0.072 Ω, structure design is the shape of the perpendicular otch of cartridge type, uses graphite material to make, and resistivity is not more than 7 μ Ω m, the MAGNESIUM METAL condenser is cylindric, inner diameter of steel flue 30mm, urceolus diameter 50mm, long 380mm, the use graphite material is manufactured, and maximum electric power is 22KW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200817690U CN201292397Y (en) | 2008-10-16 | 2008-10-16 | Vacuum metallurgy furnace suitable for producing magnesium metal with carbon thermoreduction of magnesium oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200817690U CN201292397Y (en) | 2008-10-16 | 2008-10-16 | Vacuum metallurgy furnace suitable for producing magnesium metal with carbon thermoreduction of magnesium oxide |
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| Publication Number | Publication Date |
|---|---|
| CN201292397Y true CN201292397Y (en) | 2009-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200817690U Expired - Fee Related CN201292397Y (en) | 2008-10-16 | 2008-10-16 | Vacuum metallurgy furnace suitable for producing magnesium metal with carbon thermoreduction of magnesium oxide |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425938A (en) * | 2011-10-19 | 2012-04-25 | 昆明鼎邦科技有限公司 | Non-ferrous metal multi-element alloy vacuum refining furnace |
| CN102605434A (en) * | 2012-04-06 | 2012-07-25 | 湖南金博复合材料科技有限公司 | Foot pad for heating body support foot |
| CN102676828A (en) * | 2012-06-04 | 2012-09-19 | 昆明理工大学 | Equipment for extracting gold and silver from lead/bismuth base alloy |
| CN102878796A (en) * | 2012-09-18 | 2013-01-16 | 西安康本材料有限公司 | Well type high-temperature resistance furnace for heat treatment of PAN (polyacrylonitrile) based carbon felt |
| CN103233133A (en) * | 2013-05-06 | 2013-08-07 | 重庆大学 | Device and method for preparing magnesium by carbothermic reduction |
| CN117287976A (en) * | 2023-11-24 | 2023-12-26 | 杭州嘉悦智能设备有限公司 | Graphitizing furnace |
-
2008
- 2008-10-16 CN CNU2008200817690U patent/CN201292397Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425938A (en) * | 2011-10-19 | 2012-04-25 | 昆明鼎邦科技有限公司 | Non-ferrous metal multi-element alloy vacuum refining furnace |
| CN102605434A (en) * | 2012-04-06 | 2012-07-25 | 湖南金博复合材料科技有限公司 | Foot pad for heating body support foot |
| CN102605434B (en) * | 2012-04-06 | 2015-03-25 | 湖南金博复合材料科技有限公司 | Foot pad for heating body support foot |
| CN102676828A (en) * | 2012-06-04 | 2012-09-19 | 昆明理工大学 | Equipment for extracting gold and silver from lead/bismuth base alloy |
| CN102878796A (en) * | 2012-09-18 | 2013-01-16 | 西安康本材料有限公司 | Well type high-temperature resistance furnace for heat treatment of PAN (polyacrylonitrile) based carbon felt |
| CN103233133A (en) * | 2013-05-06 | 2013-08-07 | 重庆大学 | Device and method for preparing magnesium by carbothermic reduction |
| CN103233133B (en) * | 2013-05-06 | 2014-04-09 | 重庆大学 | Device and method for preparing magnesium by carbothermic reduction |
| CN117287976A (en) * | 2023-11-24 | 2023-12-26 | 杭州嘉悦智能设备有限公司 | Graphitizing furnace |
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