CN204461058U - immersion heating magnesium smelting furnace - Google Patents
immersion heating magnesium smelting furnace Download PDFInfo
- Publication number
- CN204461058U CN204461058U CN201420815578.8U CN201420815578U CN204461058U CN 204461058 U CN204461058 U CN 204461058U CN 201420815578 U CN201420815578 U CN 201420815578U CN 204461058 U CN204461058 U CN 204461058U
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- separate type
- melting kettle
- type bell
- magnesium
- feeding device
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Abstract
The utility model discloses a kind of immersion heating magnesium smelting furnace; comprise furnace shell, separate type bell, feeding device, protective gas input unit and melting kettle; melting kettle is embedded in furnace shell inside; separate type bell is placed on above furnace shell, and feeding device and protective gas input unit are all fixed on separate type bell.Be characterized in separately being provided with immersion heater and transmitting device of releasing, be fixedly connected with in removably between the former with separate type bell, its upper end exceeds separate type bell, and the melting kettle that lower end is positioned at below separate type bell is inner; The latter runs through furnace shell and melting kettle, and is positioned at the bottom of melting kettle side, and its one end is positioned at melting kettle inside, and the other end is positioned at furnace shell outside.The utility model can increase the capacity of magnesium or liquid magnesium alloy, increases work efficiency, and the efficiency of heating surface greatly improves; In addition, when set feeding device can ensure reinforced, cut off air, improve the quality of magnesium or liquid magnesium alloy.
Description
Technical field
The utility model relates to magnesium smelting furnace, and especially a kind of immersion heating magnesium smelting furnace, belongs to magnesium alloy metallurgical technology field.
Background technology
Mg-based hydrogen storage is the very important raw material of society.Although China is magnesium resource big country, its resource accounts for 60% of world's total amount, but the price of China's export magnesium ingot and magnesium alloy ingot is very cheap, one of them main cause is China's Magnesium and magnesium alloys ingot inferior quality, added value is low, can not meet the technical requirement abroad to high-quality magnesium ingot and magnesium alloy ingot.
Magnesium smelting furnace is the special equipment of magnesium or magnesium alloy fusing, and current China magnesium industry is mostly carry out in open or semi-open magnesium smelting furnace when Melting Magnesium or magnesium alloy, and adopts and pass into continuously containing SF6 or similar gas as protective gas.A large amount of use protective gas, not only wastes energy, and has very large harm to environment, equipment and human body.And; the crucible of magnesium or magnesium alloy smelting mostly is mild steel; when passing into protective gas Melting Magnesium or magnesium alloy in open or semi-open magnesium smelting furnace; oxygen in air can enter crucible and react with high-temperature crucibles furnace wall; sidewall of crucible is caused to be oxidized; not only reduce pot life, and easily pollute magnesium liquid or liquid magnesium alloy, be unfavorable for the magnesium liquid or the liquid magnesium alloy that obtain high-quality.Current, in order to reduce the corrosion to mild steel melting kettle, the method adopting spray paint more, but coating has but become new pollution sources, effect is unsatisfactory.
In addition, the magnesium smelting furnace of current use great majority adopt external-heat heating, and namely by the crucible of external heat source, electricity or the melting of gas heating Mg-based hydrogen storage, crucible transfers heat to magnesium or magnesium alloy again.This mode of heating thermal efficiency is extremely low, and its thermal efficiency, lower than 20%, causes energy waste, and cost is also corresponding larger.In addition, external-heat heating also limits for the tonnage of magnesium smelting furnace, its inner magnesium liquid of magnesium smelting furnace or the liquid magnesium alloy capacity of general employing external-heat heating can not more than 3 tons, because magnesium smelting furnace tonnage is too small, disposable can the amount of Melting Magnesium or magnesium alloy corresponding limited, thus cause operating efficiency low.
Therefore, for improving the quality of Mg-based hydrogen storage in crucible, to adapt to expensive goods quality requirement, simultaneously in order to improve tonnage and the efficiency of heating surface of magnesium smelting furnace, must improve existing magnesium smelting furnace.
Summary of the invention
The utility model proposes a kind of immersion heating magnesium smelting furnace, the series of problems such as be intended to solve the thermal efficiency that magnesium smelting furnace exists is low, melting tonnage is little, melt out magnesium or magnesium alloy quality is low.
Technical solution of the present utility model is: immersion heating magnesium smelting furnace, comprise furnace shell, separate type bell, feeding device, protective gas input unit and melting kettle, described melting kettle is embedded in furnace shell inside, described separate type bell is placed on above furnace shell, described feeding device and protective gas input unit are all fixed on separate type bell, and the upper end of feeding device and protective gas input unit exceeds separate type bell, the lower end of feeding device and protective gas input unit is positioned at the melting kettle inside of below separate type bell, separately be provided with immersion heater and transmitting device of releasing, be fixedly connected with in removably between described immersion heater with separate type bell, and the upper end of immersion heater exceeds separate type bell, the lower end of immersion heater is positioned at the melting kettle inside of below separate type bell, described transmitting device of releasing runs through furnace shell and melting kettle, and is positioned at the bottom of melting kettle side, and its one end is positioned at melting kettle inside, and the other end is positioned at furnace shell outside.
Further, above-mentioned immersion heating magnesium smelting furnace, wherein: described separate type bell is separately provided with a circulating pump, the upper end of this circulating pump exceeds separate type bell, and the melting kettle that lower end is positioned at below separate type bell is inner.
Further, above-mentioned immersion heating magnesium smelting furnace, wherein: described immersion heater comprises tubular quill housing and heating resistance wire, described heating resistance wire is placed on tubular quill housing inside.
Further, above-mentioned immersion heating magnesium smelting furnace, wherein: the cross section of described melting kettle is " U " type.
Further, above-mentioned immersion heating magnesium smelting furnace, wherein: described feeding device is provided with the first baffle plate, second baffle and air-breather, described first baffle plate and the equal telescopically of second baffle are inserted in the inside of feeding device, and the two is in different height, one end of described air-breather is positioned at feeding device inside, and between the first baffle plate and second baffle, the other end is positioned at the outside of feeding device.
Again further, above-mentioned annealing furnace for aluminum nitrogen gas supply and control device, wherein: described in transmitting device of releasing comprise stainless steel tube and power supply, described stainless steel tube is connected with power supply, and one end of stainless steel tube is positioned at melting kettle inside, the other end is positioned at the outside of furnace shell.
Again further, above-mentioned annealing furnace for aluminum nitrogen gas supply and control device, wherein: described protective gas input unit is integrated with Pressure gauge, superpressure vent valve and gas analyzer.
The utility model technique effect is mainly reflected in:
(1) tonnage of the utility model immersion heating magnesium smelting furnace to melting kettle no longer includes restriction, large-tonnage melting kettle can be used, increase the capacity of magnesium liquid or liquid magnesium alloy, can the more magnesium liquid of disposable melting or magnesium alloy solution, improve operating efficiency; And melting kettle adopts stainless steel and carbon steel composite to make, in structure, the cross section of melting kettle is " U " type, efficiently solves thermal expansion deformation problem;
(2) immersion heater immerses in magnesium liquid or magnesium alloy solution completely, and the heat of generation is directly passed to magnesium liquid, and its thermal efficiency, up to 70%, compared with external-heat mode of heating, substantially increases heat transfer efficiency, and the effect of " cost efficiency " clearly;
(3) circulating pump makes magnesium liquid or liquid magnesium alloy circulation in crucible, heater heat is spread rapidly, ensure that the melting rate of magnesium or magnesium alloy, ensures the temperature homogeneity of magnesium liquid magnesium alloy alive in whole burner hearth, improves the quality of magnesium liquid or liquid magnesium alloy;
(4) protective gas input unit input protection gas, utilizes gas analyzer to detect pressure and atmosphere in crucible in real time simultaneously, supplements protective gas as required in crucible, and when ensureing safety in production, protective gas use amount is minimum;
(5) cut off air when feeding device can ensure reinforced, between its first baffle plate and second baffle, be connected with protective gas, improve the quality of magnesium liquid or liquid magnesium alloy;
(6) transmitting device of releasing utilizes magnesium liquid or liquid magnesium alloy deadweight that it is transferred to subordinate's casting platform from melting kettle by stainless steel tube, stainless steel tube is connected with power supply, directly can pass into big current and make stainless steel tube self-heating, prevent stainless steel tube lower the temperature thus affect magnesium liquid or liquid magnesium alloy flowing situation generation.
Accompanying drawing explanation
Fig. 1 is the structural representation of immersion heating magnesium smelting furnace.
In figure, the implication of each Reference numeral is: 1-feeding device, the 11-the first baffle plate, 12-second baffle; 13-air-breather, 2-protective gas input unit, 3-immersion heater, 4-circulating pump; 5-melting kettle, 6-separate type bell, 7-transmitting device of releasing, 8-furnace shell.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail, is easier to make technical solutions of the utility model understand and grasp.
A kind of immersion heating magnesium smelting furnace; as shown in Figure 1; comprise furnace shell 8, separate type bell 6, melting kettle 5, feeding device 1, protective gas input unit 2, immersion heater 3 and transmitting device 7 of releasing; it is inner that melting kettle 5 is embedded in furnace shell 8; separate type bell 6 is placed on above furnace shell 8; feeding device 1, circulating pump 4 and protective gas input unit 2 are all fixed on separate type bell 6, are fixedly connected with between immersion heater 3 with separate type bell 6 in removably.When separate type bell 6 is placed on furnace shell 8, closed seamless gap between separate type bell 6 and furnace shell 8, and make the bottom of feeding device 1, protective gas input unit 2, circulating pump 4 and immersion heater 3 all be positioned at melting kettle 5 inside of separate type bell less than 6; After separate type bell 6 is sling, can dismantle and change immersion heater 3.Transmitting device 7 of releasing runs through furnace shell 8 and melting kettle 5, and is installed on the bottom of melting kettle 5 side, and it is inner that its one end is positioned at melting kettle 5, and it is outside that the other end is positioned at furnace shell 8.
Immersion heater 3 comprises tubular quill housing and heating resistance wire, tubular quill housing adopts low-carbon steel material, tubular quill housing and magnesium liquid or liquid magnesium alloy is avoided to react, heating resistance wire is placed on tubular quill housing inside, magnesia powder is filled with between tubular quill housing and resistance wire, magnesia not only good insulating also possesses high thermal conductivity simultaneously, solve the unsuitable problems of too of single immersion heater 3 power, improve the surperficial power of immersion heater 3, and at immersion heater 3 built with overtemperature prote thermocouple, the service life of immersion heater 3 is increased.Melting kettle 5 is preferably the large-tonnage melting kettle of at least 10 tons, and adopts stainless steel and carbon steel composite to make, and in structure, the cross section of melting kettle 5 is " U " type, efficiently solves thermal expansion deformation problem, adds the service life of crucible.Protective gas input unit 2 is integrated with Pressure gauge, superpressure vent valve and gas analyzer, reduces the safety that protective gas use amount also can ensure fusion process.Transmitting device 7 of releasing comprises stainless steel tube and power supply, and described stainless steel tube is connected with power supply, and one end of stainless steel tube is positioned at melting kettle 5 inside, and the other end is positioned at furnace shell 8 outside and is connected with the casting platform of subordinate.After magnesium liquid or liquid magnesium alloy melting complete, magnesium liquid or liquid magnesium alloy deadweight is utilized to make it be transferred to subordinate's casting platform from melting kettle 5 by stainless steel tube, lower the temperature to prevent stainless steel tube thus affect magnesium liquid or liquid magnesium alloy flowing, directly can pass into big current and make stainless steel tube self-heating.Feeding device 1 is provided with the first baffle plate 11, second baffle 12 and air-breather 13; first baffle plate 11 and second baffle 12 all telescopically insert feeding device 1 inside; and the two is in different height; the confined space that first baffle plate 11, second baffle 12 and feeding device 1 are formed must be enough to put into magnesium ingot or magnesium alloy ingot; one end of air-breather 13 is positioned at feeding device 1 inside; and between the first baffle plate 11 and second baffle 12; it is outside that the other end is positioned at feeding device 1, for passing into protective gas.
The utility model scheme implementation flow process is as follows: first time opens stokehold, and need to pour magnesium liquid or liquid magnesium alloy into large-tonnage melting kettle 5, addition demand fulfillment covers the immersion heater 3 of the bottom; Then need to start slowly to drop into magnesium ingot or magnesium alloy ingot to feeding device 1, when putting into magnesium ingot or magnesium alloy ingot, first the first baffle plate 11 of feeding device 1 is pulled out, then magnesium ingot or magnesium alloy ingot are dropped in feeding device 1, now magnesium ingot or magnesium alloy ingot are positioned at above second baffle 12, first baffle plate indentation 11 afterwards and second baffle 12 pull out, and magnesium ingot or magnesium alloy ingot then can fall into melting kettle 5, and in the whole course of work, air-breather 13 keeps passing into protective gas always; Start circulating pump 4 simultaneously, treat that immersion heater 3 is covered completely by magnesium liquid or liquid magnesium alloy, then total power opens whole immersion heater 3, protective gas input unit 2 whole process is opened, for cutting off air.After magnesium liquid to be done or process for smelting magnesium alloy, magnesium liquid or liquid magnesium alloy can be transported to the casting platform of subordinate by transmitting device 7 of releasing.
By describing above and can finding out: the tonnage of (1) the utility model immersion heating magnesium smelting furnace to melting kettle no longer includes restriction, large-tonnage melting kettle can be used, increase the capacity of magnesium liquid or liquid magnesium alloy, can the more magnesium liquid of disposable melting or magnesium alloy solution, improve operating efficiency; And melting kettle adopts stainless steel and carbon steel composite to make, in structure, the cross section of melting kettle is " U " type, efficiently solves thermal expansion deformation problem; (2) immersion heater immerses in magnesium liquid or magnesium alloy solution completely, and the heat of generation is directly passed to magnesium liquid or liquid magnesium alloy, and its thermal efficiency, up to 70%, compared with external-heat mode of heating, substantially increases heat transfer efficiency; (3) circulating pump makes magnesium liquid or liquid magnesium alloy circulation in crucible, heater heat is spread rapidly, ensure that the melting rate of magnesium or magnesium alloy, ensure the temperature homogeneity of magnesium liquid or liquid magnesium alloy in whole burner hearth; (4) protective gas input unit input protection gas, utilizes gas analyzer to detect pressure and atmosphere in crucible in real time simultaneously, supplements protective gas as required in crucible, and when ensureing safety in production, protective gas use amount is minimum; (5) cut off air when feeding device can ensure reinforced, be connected with protective gas between its first baffle plate and second baffle, when filling with substance ensures that outside air does not enter; (6) transmitting device of releasing utilizes magnesium liquid or liquid magnesium alloy deadweight that it is transferred to subordinate's casting platform from melting kettle by stainless steel tube, stainless steel tube is connected with power supply, directly can pass into big current and make stainless steel tube self-heating, prevent stainless steel tube lower the temperature thus affect magnesium liquid or liquid magnesium alloy flowing situation generation.
Certainly, be more than representative instance of the present utility model, in addition, the utility model can also have other multiple detailed description of the invention, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the claimed scope of the utility model.
Claims (7)
1. an immersion heating magnesium smelting furnace, comprise furnace shell, separate type bell, feeding device, protective gas input unit and melting kettle, described melting kettle is embedded in furnace shell inside, described separate type bell is placed on above furnace shell, described feeding device and protective gas input unit are all fixed on separate type bell, and the upper end of feeding device and protective gas input unit exceeds separate type bell, the lower end of feeding device and protective gas input unit is positioned at the melting kettle inside of below separate type bell, it is characterized in that: be separately provided with immersion heater and transmitting device of releasing, be fixedly connected with in removably between described immersion heater with separate type bell, and the upper end of immersion heater exceeds separate type bell, the lower end of immersion heater is positioned at the melting kettle inside of below separate type bell, described transmitting device of releasing runs through furnace shell and melting kettle, and is positioned at the bottom of melting kettle side, and its one end is positioned at melting kettle inside, and the other end is positioned at furnace shell outside.
2. immersion heating magnesium smelting furnace according to claim 1, it is characterized in that: described separate type bell is separately provided with a circulating pump, the upper end of this circulating pump exceeds separate type bell, and the melting kettle that lower end is positioned at below separate type bell is inner.
3. immersion heating magnesium smelting furnace according to claim 1, it is characterized in that: described immersion heater comprises tubular quill housing and heating resistance wire, described heating resistance wire is placed on tubular quill housing inside.
4. immersion heating magnesium smelting furnace according to claim 1, is characterized in that: the cross section of described melting kettle is " U " type.
5. immersion heating magnesium smelting furnace according to claim 1, it is characterized in that: described feeding device is provided with the first baffle plate, second baffle and air-breather, described first baffle plate and the equal telescopically of second baffle are inserted in the inside of feeding device, and the two is in different height, one end of described air-breather is positioned at feeding device inside, and between the first baffle plate and second baffle, the other end is positioned at the outside of feeding device.
6. immersion heating magnesium smelting furnace according to claim 1, it is characterized in that: described in transmitting device of releasing comprise stainless steel tube and power supply, described stainless steel tube is connected with power supply, and one end of stainless steel tube is positioned at melting kettle inside, and the other end is positioned at the outside of furnace shell.
7. immersion heating magnesium smelting furnace according to claim 1, is characterized in that: described protective gas input unit is integrated with Pressure gauge, superpressure vent valve and gas analyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815578.8U CN204461058U (en) | 2014-12-19 | 2014-12-19 | immersion heating magnesium smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815578.8U CN204461058U (en) | 2014-12-19 | 2014-12-19 | immersion heating magnesium smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204461058U true CN204461058U (en) | 2015-07-08 |
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ID=53667931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420815578.8U Expired - Fee Related CN204461058U (en) | 2014-12-19 | 2014-12-19 | immersion heating magnesium smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204461058U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613759A (en) * | 2014-12-19 | 2015-05-13 | 苏州新长光热能科技有限公司 | Immersed type heating magnesium smelting furnace |
| CN106225479A (en) * | 2016-08-26 | 2016-12-14 | 陈学红 | A kind of heating rate has the smelting equipment of waste gas purification function soon |
-
2014
- 2014-12-19 CN CN201420815578.8U patent/CN204461058U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613759A (en) * | 2014-12-19 | 2015-05-13 | 苏州新长光热能科技有限公司 | Immersed type heating magnesium smelting furnace |
| CN106225479A (en) * | 2016-08-26 | 2016-12-14 | 陈学红 | A kind of heating rate has the smelting equipment of waste gas purification function soon |
| CN106225479B (en) * | 2016-08-26 | 2018-03-23 | 越研环境工程盐城有限公司 | A kind of heating rate has the smelting equipment of waste gas purification function soon |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20161219 |