CN100475989C - Sealed vacuum electrically heated furnace as internally heating continuous magnesium producing apparatus - Google Patents
Sealed vacuum electrically heated furnace as internally heating continuous magnesium producing apparatus Download PDFInfo
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- CN100475989C CN100475989C CNB2007100554303A CN200710055430A CN100475989C CN 100475989 C CN100475989 C CN 100475989C CN B2007100554303 A CNB2007100554303 A CN B2007100554303A CN 200710055430 A CN200710055430 A CN 200710055430A CN 100475989 C CN100475989 C CN 100475989C
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Abstract
The present invention is one kind of continuous magnesium producing apparatus with internally heating sealed vacuum electrically heating furnace. The continuous magnesium producing apparatus consists of a sealed vacuum electrically heating furnace and a solid magnesium cooling condensator connected to the sealed vacuum electrically heating furnace directly or through a liquid magnesium cooling condensator. The sealed vacuum electrically heating furnace is provided with refractory heat insulating layer, inside heating element, etc. The present invention has high heat efficiency, high heating speed, low power consumption, continuous production, low cost and other advantages.
Description
Technical field
The present invention relates to mechanically, particularly a kind of metal melting equipment refers to a kind of sealed vacuum electrically heated furnace as internally heating continuous magnesium producing apparatus especially.
Background technology
At present, traditional smelting equipment mainly is reduction jar, about its internal diameter 300mm, about long 2m, adds thermal reduction jar and built-in thing section thereof with coal or gas-fired, is called " external heating ".For homogeneous heating, because of tank body volume limitation, thermo-efficiency is low, and the recovery time is generally at 8～12 hours.Traditional smelting equipment is batch production, yields poorly, and tank body is yielding under high temperature, vacuum condition, consume is big, cost is high, labour intensity is big and influence environment, need be improved.
Summary of the invention
The object of the present invention is to provide a kind of sealed vacuum electrically heated furnace as internally heating continuous magnesium producing apparatus, solved yielding poorly of traditional smelting equipment existence, tank body is yielding under high temperature, vacuum condition, consume is big, cost is high, labour intensity reaches problems such as influencing environment greatly.
Technical scheme of the present invention: the one, replace coal or gas-fired heating with electrically heated; The 2nd, replace with the synthesis by internal resistance electric melting of heating element direct heating material and to add the thermal reduction jar, again the external heating of indirect heating material in it with fuel combustion; The 3rd, replace little volumetrical reduction jar with jumbo electrothermal oven.The purpose of the magnesium vapor rapid condensation that displacement restores when smelting destructive distillation for realization adopts refrigated cooling, is that continous way is given birth to for changing batch production, and employing refrigated cooling condenser and cooler condenser two cover alternately operatings reach the purpose that goes out magnesium continuously; Adopt sealed vacuum continuous-feeding device, continuous discharging slag device, reach the purpose of continuous-feeding, continuous discharging slag under vacuum state.
Structure of the present invention is to be linked to each other in regular turn by sealed vacuum electrothermal oven, liquid magnesium refrigated cooling condenser and solid-state magnesium cooler condenser, perhaps by sealed vacuum electrothermal oven and solid-state magnesium cooler condenser directly link to each other the institute constitute, wherein, be provided with heat-resisting thermal insulation layer in the furnace shell of sealed vacuum electrothermal oven, heating element is established in the inside of sealed vacuum electrothermal oven; The top of sealed vacuum electrothermal oven is provided with material inlet, vision slit, vacuum degassing mouth and protective gas pipe, and the bottom is provided with slag-drip opening; Material inlet, vacuum degassing mouth and slag-drip opening are respectively equipped with vacuum valve;
Wherein, heating element can be made as ring wall formula tube cage shape heating element or center type pipe cage shape/column heating element, and it is fixed on the heating element seat; Can also be provided with center type pipe cage shape/column heating element in this ring wall formula tube cage shape heating element; This heating element also can be made as blade/plate turning type heating element, and this blade/plate turning type heating element is fixed by the groove on center pole and the furnace wall, and this center pole is fixed on the heating element seat, and this center pole is a tubulose, and tube wall is vesicular; This heating element also can be made as riser/riser shape heating element, or tiltedly sheet/swash plate shape heat is sent out body, or S matrix/S template shape heating element;
Be provided with thermal insulation layer in the shell of liquid magnesium refrigated cooling condenser, its housing is provided with protective gas pipe, vacuum evapn inlet, and this vacuum evapn inlet links to each other with the vacuum degassing mouth of sealed vacuum electrothermal oven; It is indoor that the liquid magnesium collection funnel is positioned at the high temperature magnesium vapor, the bottom is the liquid magnesium storage tank, and this liquid magnesium collection funnel is corresponding with strong refrigated cooling tube, and the outside of strong refrigated cooling tube is provided with water jacket and freezing cold air cover, the top is provided with baffle plate, and water jacket is provided with water inlet and water outlet; One end of strong refrigated cooling tube links to each other with the vacuum evapn inlet of solid-state magnesium cooler condenser for the outlet of vacuum gas;
Solid-state magnesium cooler condenser is connected with the sealed vacuum electrothermal oven by liquid magnesium refrigated cooling condenser, perhaps directly is connected with sealing vacuum electric heating stove; This solid-state magnesium cooler condenser is one or more series connection; When going out magnesium continuously, need to be equipped with two cover liquid magnesium refrigated cooling condensers and solid-state magnesium cooler condenser, the solid-state magnesium cooler condenser of perhaps two covers; Alternately operating.
The material inlet of sealed vacuum electrothermal oven and slag-drip opening are connected with continuous-feeding device, continuous discharging slag device respectively, this continuous-feeding device, continuous discharging slag device are composed in series by two chargings or deslagging jar, be provided with thermal insulation layer in the ladle bowl of this charging or deslagging jar, top is provided with feed or slag-drip opening and the outlet of vacuum gas, and the bottom is provided with feed or slag-drip opening; Feed or slag-drip opening are provided with feed or the valve of slagging tap; Be provided with preheater in the slag district of sealed vacuum electrothermal oven bottom, the pre-thermal material of installing in this preheater.
The present invention can be applied to produce calcium metal, Preparation of Metallic Strontium simultaneously.
The invention has the advantages that: the equipment advanced person, with high content of technology, adopt electrically heated, material in the direct heat oven, the body of heater volume is big, the thermo-efficiency height, heating is quick, stable, accurate, even, has reduced energy consumption, realized continous way production, especially smelt the critical process of crude magnesium at electrothermal oven, its heat temperature raising temperature and time, holding temperature and time all can be set the different curve programming of many groups by actual needs, accomplish automatization control; Improve output, reduced cost, reliable product quality, the equipment usage period is longer, and is easy to maintenance, improved labor condition, alleviated labour intensity, is particularly conducive to environment protection, has outstanding substantive distinguishing features and practicality.
Description of drawings:
Fig. 1 is the structural representation of sealed vacuum electrothermal oven of the present invention;
Fig. 2 is another structural representation of sealed vacuum electrothermal oven of the present invention;
Fig. 3 is the another structural representation of sealed vacuum electrothermal oven of the present invention;
Fig. 4 is a liquid magnesium refrigated cooling structure of condenser synoptic diagram of the present invention;
Fig. 5 is the structural representation of the solid-state magnesium cooler condenser of the present invention;
Fig. 6 is the structural representation of continuous-feeding of the present invention, continuous discharging slag device;
Fig. 7 is the structural representation of high temperature furnace slag waste heat preheater of the present invention.
Embodiment:
As accompanying drawing 1 to shown in the accompanying drawing 7, the present invention both can be applicable to the liquid magnesium production technique, can be applicable to solid-state magnesium production technique again, it is to be linked to each other in regular turn by sealed vacuum electrothermal oven 1, liquid magnesium refrigated cooling condenser 2 and solid-state magnesium cooler condenser 3, perhaps by sealed vacuum electrothermal oven 1 and solid-state magnesium cooler condenser 3 directly link to each other the institute constitute, wherein, it is vertical etc. that the shape of sealed vacuum electrothermal oven 1 can be made as cylindric vertical, square vertical or rectangle; Furnace shell 11 is welded by charcoal steel or stainless steel plate, and thickness is double-deck water-cooling structure at 20～30mm, be provided with heat-resisting thermal insulation layer 12 in the furnace shell 11, this thermal insulation layer is made up of high temperature resistant flame-proof thermal insulation material more than 1600 ℃, and certain thickness is arranged, and reaches heat preservation effect; Heating element 13 is established in the inside of sealed vacuum electrothermal oven 1; The top of sealed vacuum electrothermal oven 1 is provided with material inlet 14, vision slit 15, vacuum degassing mouth 16 and protective gas pipe 17, and the bottom is provided with slag-drip opening 18; Material inlet 14, vacuum degassing mouth 16 and slag-drip opening 18 are respectively equipped with vacuum valve 10;
Wherein, the material of heating element 13 can be metal, alloy and nonmetallic graphite, carbonaceous, pottery, C-C ' matrix material and high temperature, high-intensity novel material; This heating element 13 can be made as ring wall formula tube cage shape heating element 131 or center type pipe cage shape/column heating element 133, and as shown in Figure 1, it is fixed on the heating element seat 132; Can also be provided with center type pipe cage shape/column heating element 133 in this ring wall formula tube cage shape heating element 131; Ring wall formula tube cage shape heating element 131 direct heating material in sealed vacuum electrothermal oven 1 carries out vacuum distilling;
This heating element 13 also can be made as blade/plate turning type heating element 134, as shown in Figure 2, this blade/plate turning type heating element 134 is fixing by the groove on center pole 135 and the furnace wall 136, this center pole 135 is fixed on the heating element seat 132, this center pole 135 is a tubulose, tube wall is vesicular, for resistant to elevated temperatures refractory materials is formed, so that pyrogenous steam overflow; Blade/plate turning type heating element 134 is body in the shape of a spiral from top to bottom, and the gradient of blade/rotating plate should be greater than the natural repose angle degree, and heating object can fall naturally; Spacing between blade/rotating plate increases even fast for good, unsuitable excessive with the heating material temperature; During use, under the situation of condition permission, the diameter and the length of blade/rotating plate be can enlarge as possible, the South Mountain scale and the output of electrothermal oven 1 enlarged with this;
This heating element 13 also can be made as riser/riser shape heating element 137, or tiltedly sheet/swash plate shape heat is sent out body, or S matrix/S template shape heating element, as shown in Figure 3; The spacing of sheet/tabular heating element can not be excessive with to the material heat temperature raising fast, evenly be advisable; If enlarge the scale and the output of electrothermal oven 1, can adopt large-scale heating element and the suitable quantity that increases heating element;
Be equipped with vacuum unit and vacuum pipe, smelt vacuum tightness more than 10pa in the sealing sealed vacuum electrothermal oven 1.
As shown in Figure 4, the temperature of liquid magnesium refrigated cooling condenser 2 generally is controlled at 650～700 ℃, be provided with thermal insulation layer 22 in its shell 21, its housing is provided with protective gas pipe 23, vacuum evapn inlet 24, and this vacuum evapn inlet 24 links to each other with the vacuum degassing mouth 16 of sealed vacuum electrothermal oven 1; Liquid magnesium collection funnel 25 is positioned at high temperature magnesium vapor chamber 26, the bottom is a liquid magnesium storage tank 27, this liquid magnesium collection funnel 25 is corresponding with strong refrigated cooling tube 20, and the outside of strong refrigated cooling tube 20 is provided with water jacket 201 and freezing cold air cover 202, but the quick adjustment temperature; The top is provided with baffle plate 203, and water jacket 201 is provided with water inlet 2011 and water outlet 2012; One end of strong refrigated cooling tube 20 is that vacuum outlet 204 links to each other with the vacuum evapn inlet 31 of solid-state magnesium cooler condenser 3.
As shown in Figure 5, solid-state magnesium cooler condenser 3 is connected with sealed vacuum electrothermal oven 1 by liquid magnesium refrigated cooling condenser 2, perhaps directly is connected with sealing vacuum electric heating stove 1; This solid-state magnesium cooler condenser 3 is one or more series connection; When going out magnesium continuously, need to be equipped with two cover liquid magnesium refrigated cooling condensers 2 and solid-state magnesium cooler condenser 3, the solid-state magnesium cooler condenser 3 of perhaps two covers; Alternately operating.
The material inlet 14 of sealed vacuum electrothermal oven 1 and slag-drip opening 18 are connected with continuous-feeding, continuous discharging slag device 4 respectively, as shown in Figure 6, this continuous-feeding, continuous discharging slag device 4 are composed in series by two chargings or deslagging jar 41, be provided with thermal insulation layer 43 in the ladle bowl 42 of this charging or deslagging jar 41, top is provided with feed or slag-drip opening 44 and vacuum gas outlet 45, and the bottom is provided with feed or slag-drip opening 46; Feed or slag-drip opening 44 are provided with feed or slag tap valve 47.
As shown in Figure 7, be provided with preheater 51 in the slag district 5 of sealed vacuum electrothermal oven 1 bottom, install pre-thermal material 52 in this preheater, reach the purpose of save energy.
The present invention can be applied to produce calcium metal, Preparation of Metallic Strontium simultaneously.
Claims (1)
1, a kind of sealed vacuum electrically heated furnace as internally heating continuous magnesium producing apparatus, be to link to each other in regular turn by sealed vacuum electrothermal oven (1), liquid magnesium refrigated cooling condenser (2) and solid-state magnesium cooler condenser (3), perhaps by sealed vacuum electrothermal oven (1) and solid-state magnesium cooler condenser (3) directly link to each other constitute, wherein, be provided with heat-resisting thermal insulation layer (12) in the furnace shell (11) of sealed vacuum electrothermal oven (1), heating element (13) is established in the inside of sealed vacuum electrothermal oven (1); The top of sealed vacuum electrothermal oven (1) is provided with material inlet (14), vision slit (15), vacuum degassing mouth (16) and protective gas pipe (17), and the bottom is provided with slag-drip opening (18); Material inlet (14), vacuum degassing mouth (16) and slag-drip opening (18) are respectively equipped with vacuum valve (10), it is characterized in that:
Said heating element (13) is blade/plate turning type heating element (134), this blade/plate turning type heating element (134) is fixing by the groove (136) on center pole (135) and the furnace wall, this center pole (135) is fixed on the heating element seat (132), this center pole (135) is a tubulose, and tube wall is vesicular;
Or said heating element (13) is riser/riser shape heating element (137), or tiltedly sheet/swash plate shape heat is sent out body, or S matrix/S template shape heating element;
Be provided with thermal insulation layer (22) in the shell (21) of said liquid magnesium refrigated cooling condenser (2), its housing is provided with protective gas pipe (23), vacuum evapn inlet (24), and this vacuum evapn inlet (24) links to each other with the vacuum degassing mouth (16) of sealed vacuum electrothermal oven (1); Liquid magnesium collection funnel (25) is positioned at high temperature magnesium vapor chamber (26), the bottom is liquid magnesium storage tank (27), this liquid magnesium collection funnel (25) is corresponding with strong refrigated cooling tube (20), the outside of strong refrigated cooling tube (20) does not have water jacket (201) and freezing cold air cover (202), the top is provided with baffle plate (203), and water jacket (201) is provided with water inlet (2011) and water outlet (2012); One end of strong refrigated cooling tube (20) is that vacuum outlet (204) links to each other with the vacuum evapn inlet (31) of solid-state magnesium cooler condenser (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100554303A CN100475989C (en) | 2007-03-20 | 2007-03-20 | Sealed vacuum electrically heated furnace as internally heating continuous magnesium producing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100554303A CN100475989C (en) | 2007-03-20 | 2007-03-20 | Sealed vacuum electrically heated furnace as internally heating continuous magnesium producing apparatus |
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| CN101020969A CN101020969A (en) | 2007-08-22 |
| CN100475989C true CN100475989C (en) | 2009-04-08 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906544B (en) * | 2010-08-17 | 2013-02-13 | 牛强 | Double-dip pipe ferrosilicon bath vacuum circular flow magnesium-smelting device and method thereof |
| CN101914692B (en) * | 2010-08-17 | 2012-10-03 | 牛强 | Single-dip pipe silicon iron bath vacuum circulated magnesium-smelting device and method |
| CN102767970A (en) * | 2012-08-09 | 2012-11-07 | 山东盛华电子新材料有限公司 | Cooling device in high-vacuum distillation system |
| CN105238928B (en) * | 2015-11-18 | 2017-05-24 | 东北大学 | Internal-heating light metal extracting device with automatic material lifting function and internal-heating light metal extracting method |
| CN107267729A (en) * | 2017-05-04 | 2017-10-20 | 北京中科科美科技股份有限公司 | A kind of multistation vacuum drying oven is uniformly heated and temperature control system |
| CN114774716B (en) * | 2022-06-06 | 2024-05-03 | 陕西秦龙电力股份有限公司 | Pidgeon method magnesium metal reduction device |
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2007
- 2007-03-20 CN CNB2007100554303A patent/CN100475989C/en active Active
Non-Patent Citations (4)
| Title |
|---|
| 提高我国镁冶金技术增强镁工业的竞争力. 冯乃祥，彭建平，吴秀铭.轻金属，第9期. 2002 |
| 提高我国镁冶金技术增强镁工业的竞争力. 冯乃祥，彭建平，吴秀铭.轻金属，第9期. 2002 * |
| 炼镁与真空蒸馏还原罐生产技术的发展. 朱家琛，李德臣.铸造设备研究，第1期. 2006 |
| 炼镁与真空蒸馏还原罐生产技术的发展. 朱家琛，李德臣.铸造设备研究，第1期. 2006 * |
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