CN101748295A - Device for smelting magnesium by silicothermic process - Google Patents
Device for smelting magnesium by silicothermic process Download PDFInfo
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- CN101748295A CN101748295A CN200810306320A CN200810306320A CN101748295A CN 101748295 A CN101748295 A CN 101748295A CN 200810306320 A CN200810306320 A CN 200810306320A CN 200810306320 A CN200810306320 A CN 200810306320A CN 101748295 A CN101748295 A CN 101748295A
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- magnesium
- retort
- reaction tank
- flange
- silicothermic process
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Abstract
The invention discloses a device for smelting magnesium by a silicothermic process, which comprises a lower part (1) of a reaction tank and an upper part (13) of a reaction tank, wherein a condensing magnesium sleeve (4) is arranged in the upper part (13) of the reaction tank; a magnesium vapor condenser (11) is arranged in the condensing magnesium sleeve (4); a reaction tank cooling device (6) is arranged outside the upper part (13) of the reaction tank; a reaction tank flange (8) is arranged on the upper part of the upper part (13) of the reaction tank; and a blind flange (10) is arranged on the upper part of the reaction tank flange (8). The device has the advantages that: the magnesium is produced by using a rich dolomite resource in China; the production process is short, the investment is small and the plant building is quick; and the environmental pollution caused by using an electrolytic process and magnesite or carnallite to produce magnesium is avoided.
Description
Technical field
The present invention relates to a kind of magnesium smelting device, particularly a kind of device for smelting magnesium by silicothermic process.
Background technology
China's magnesium industry adopts electrolytic process production MAGNESIUM METAL for a long time, and the raw material that uses is magnesite (MgCO
3), or carnallitite (MgCL
2.KCL.6H
2O).
When adopting magnesite is that raw material is, with magnesite fragmentation, abrasive dust, joins a certain proportion of petroleum coke as reducing agent, is pressed into agglomerate, in chlorination furnace under 800～1000 degree celsius temperature, feeds chlorine and makes fusion MgCL
2, then with MgCL
2Send into and carry out electrolysis in the electrolyzer, produce MAGNESIUM METAL and byproduct chlorine.
When adopting carnallitite to be raw material,, go out to add after these water and carry out electrolysis in the electrolyzer because carnallitite contains crystal water and a small amount of attached water of 6 molecules.Production process is to adopt fluidizing furnace to dewater earlier, and then adopts chlorinator to dewater, at last with anhydrous MgCL
2Send into electrolyzer production MAGNESIUM METAL.
Utilize electrolyzer to carry out the electrolysis of magnesium, electrical efficiency lower (66%～75%, most of working time is less than 70%), power consumption is than higher (14390～16350kw.h/T, be 16000kw.h/T most of working time); Simultaneously, adopt electrolytic process, Production Flow Chart is long, and investment is big, chlorine is arranged, contaminate environment in the production.
Another kind of magnesium ore deposit--rhombspar (MgCO
3.CaCO
3) abundant in china natural resources, best in quality, the place of production spreads all over the each province, adopt silicothermic process with rhombspar production MAGNESIUM METAL: rhombspar after will calcining and ferrosilicon are worn into powder and are mixed in proportion and are pressed into agglomerate, issue biochemical reaction at the high-temperature vacuum state and generate magnesium steam, obtain MAGNESIUM METAL through condensation-crystallization.Silicon reduction refining magnesium method is compared with electrolytic process, and flow process is short, investment is low, electricity consumption is few, pollution is little.But silicon reduction refining magnesium method seldom adopts in China, lacks corresponding production equipment.
Summary of the invention
Technical problem to be solved by this invention is, a kind of device for smelting magnesium by silicothermic process is provided, utilizes the rhombspar resource production MAGNESIUM METAL of China's abundant, avoid using electrolytic process, utilize magnesite or carnallitite production MAGNESIUM METAL, to producing environmental pollution, overcome deficiency of the prior art.
Technical scheme of the present invention: it comprises retort bottom and retort top, the retort upper interior portion is provided with the condensed magnesium sleeve, the condensed magnesium sleeve inner is provided with the magnesium steam condenser, the retort upper external is provided with the retort refrigerating unit, top, retort top is provided with the retort flange, and retort flange top is provided with blind flange.
Top, described retort bottom is provided with insulation board.
Described magnesium steam condenser is a condenser box.
Described retort refrigerating unit is the water jacket cooler that is arranged on the retort upper external.
Be provided with O-ring seal in the middle of described retort flange and the blind flange.
Top, described retort top is provided with vacuum-pumping tube.
The material of described retort bottom is a nickel-chrome alloy steel.
Described retort top material is a boiler steel.
Compared with prior art, the present invention utilizes the rhombspar resource production MAGNESIUM METAL of China's abundant, Production Flow Chart weak point, reduced investment, founds the factory soon, avoids using electrolytic process, utilizes magnesite or carnallitite production MAGNESIUM METAL, to producing environmental pollution.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention.
Embodiment
Embodiments of the invention: with reference to accompanying drawing, utilize resistance to oxidation, heat-stable nickel-chrome alloy steel casting retort bottom 1, the use boiler sheet is produced insulation board 3 and is installed in the inside on 1 top, retort bottom; Use boiler sheet to make retort top 13, retort top 13 is welded on the top of retort bottom 1; External apertures on retort top 13 is installed vacuum-pumping tube 7, and the outside weldings on retort top 13 is used for the refrigerative water jacket cooler as retort refrigerating unit 6; At 13 tops, retort top welding retort flange 8, retort flange 8 top mounting flange lids 10 have circular groove on retort flange 8, be used to place O-ring seal 9; In 13 inside, retort top condensed magnesium sleeve 4 is installed, is installed in the top of condensed magnesium sleeve 4 as magnesium steam condenser 11, the inhalent siphon 12 that goes out of magnesium steam condenser 11 is passed blind flange 10 and reaches outside water receiving pipe of the present invention with condenser box.
During use, the present invention is put into process furnace, and the inhalent siphon and the rising pipe of magnesium steam condenser 11 and retort refrigerating unit 6 connected water pipe respectively, and vacuum pump is connected on the vacuum-pumping tube 7, packed group material 2 is packed in the retort bottom 1, heating gets final product.
Process furnace can adopt Sweet natural gas, heavy oil or coal gas heating.After having reacted, the crystallization magnesium in the present invention 5 is taken out, melt refining, cast magnesium ingot.Remaining white residue can be used for producing the adulterant of cement.
Claims (8)
1. device for smelting magnesium by silicothermic process, it is characterized in that: it comprises retort bottom (1) and retort top (13), inside, retort top (13) is provided with condensed magnesium sleeve (4), condensed magnesium sleeve (4) inside is provided with magnesium steam condenser (11), retort top (13) the outer setting jar refrigerating unit (6) that responds, top, retort top (13) is provided with retort flange (8), and retort flange (8) top is provided with blind flange (10).
2. device for smelting magnesium by silicothermic process according to claim 1 is characterized in that: top, described retort bottom (1) is provided with insulation board (3).
3. device for smelting magnesium by silicothermic process according to claim 1 is characterized in that: described magnesium steam condenser (11) is a condenser box.
4. device for smelting magnesium by silicothermic process according to claim 1 is characterized in that: described retort refrigerating unit (6) is for being arranged on the outside water jacket cooler in retort top (13).
5. device for smelting magnesium by silicothermic process according to claim 1 is characterized in that: described retort flange (8) and the middle O-ring seal (9) that is provided with of blind flange (10).
6. device for smelting magnesium by silicothermic process according to claim 1 is characterized in that: top, described retort top (13) is provided with vacuum-pumping tube (7).
7. device for smelting magnesium by silicothermic process according to claim 1 is characterized in that: the material of described retort bottom (1) is a nickel-chrome alloy steel.
8. device for smelting magnesium by silicothermic process according to claim 1 is characterized in that: described retort top (13) material is a boiler steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810306320A CN101748295A (en) | 2008-12-17 | 2008-12-17 | Device for smelting magnesium by silicothermic process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810306320A CN101748295A (en) | 2008-12-17 | 2008-12-17 | Device for smelting magnesium by silicothermic process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101748295A true CN101748295A (en) | 2010-06-23 |
Family
ID=42475906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810306320A Pending CN101748295A (en) | 2008-12-17 | 2008-12-17 | Device for smelting magnesium by silicothermic process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101748295A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906544A (en) * | 2010-08-17 | 2010-12-08 | 牛强 | Double-dip pipe ferrosilicon bath vacuum circular flow magnesium-smelting device and method thereof |
| CN101914692A (en) * | 2010-08-17 | 2010-12-15 | 牛强 | Single-dip pipe silicon iron bath vacuum circulated magnesium-smelting device and method |
| CN104154760A (en) * | 2014-07-04 | 2014-11-19 | 江苏泰瑞耐火有限公司 | Shuttle kiln car tool |
| CN108165768A (en) * | 2018-01-15 | 2018-06-15 | 东北大学 | The apparatus and method of lithium are produced in a kind of vacuum metal thermal reduction |
-
2008
- 2008-12-17 CN CN200810306320A patent/CN101748295A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906544A (en) * | 2010-08-17 | 2010-12-08 | 牛强 | Double-dip pipe ferrosilicon bath vacuum circular flow magnesium-smelting device and method thereof |
| CN101914692A (en) * | 2010-08-17 | 2010-12-15 | 牛强 | Single-dip pipe silicon iron bath vacuum circulated magnesium-smelting device and method |
| CN101914692B (en) * | 2010-08-17 | 2012-10-03 | 牛强 | Single-dip pipe silicon iron bath vacuum circulated magnesium-smelting device and method |
| CN101906544B (en) * | 2010-08-17 | 2013-02-13 | 牛强 | Double-dip pipe ferrosilicon bath vacuum circular flow magnesium-smelting device and method thereof |
| CN104154760A (en) * | 2014-07-04 | 2014-11-19 | 江苏泰瑞耐火有限公司 | Shuttle kiln car tool |
| CN108165768A (en) * | 2018-01-15 | 2018-06-15 | 东北大学 | The apparatus and method of lithium are produced in a kind of vacuum metal thermal reduction |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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Application publication date: 20100623 |