CN104613759B - Immersed type heating magnesium smelting furnace - Google Patents
Immersed type heating magnesium smelting furnace Download PDFInfo
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- CN104613759B CN104613759B CN201410797500.2A CN201410797500A CN104613759B CN 104613759 B CN104613759 B CN 104613759B CN 201410797500 A CN201410797500 A CN 201410797500A CN 104613759 B CN104613759 B CN 104613759B
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- magnesium
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- melting kettle
- separate type
- feeding device
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Abstract
The invention discloses an immersed type heating magnesium smelting furnace. The immersed type heating magnesium smelting furnace comprises a furnace shell, a separated type furnace cover, a feeding device, a protective gas input device and a smelting crucible. The smelting crucible is embedded in the furnace shell. The separated type furnace cover covers the furnace shell. The feeding device and the protective gas input device are both fixed to the separated type furnace cover. The immersed type heating magnesium smelting furnace is characterized in that an immersed type heater and a discharge transmitting device are additionally arranged, the immersed type heater is detachably and fixedly connected with the separated type furnace cover, the upper end of the immersed type heater extends out of the separated type furnace cover, and the lower end of the immersed type heater is located in the smelting crucible and arranged below the separated type furnace cover; the discharge transmitting device penetrates through the furnace shell and the smelting crucible and is located at the bottom of the side face of the smelting crucible, one end of the discharge transmitting device is located in the smelting crucible, and the other end of the discharge transmitting device is located outside the furnace shell. By the adoption of the immersed type heating magnesium smelting furnace, the volume of molten magnesium or magnesium alloy can be increased, work efficiency is improved, and the heating efficiency is greatly improved; in addition, the arranged heating device can guarantee that air is isolated when feeding is conducted, and the quality of the molten magnesium or magnesium alloy is improved.
Description
Technical field
The present invention relates to magnesium smelting furnace, especially a kind of immersion heating magnesium smelting furnace, belong to magnesium alloy metallurgical technology neck
Domain.
Background technology
Magnesium and magnesium alloy are the very important raw materials of today's society.Although China is magnesium resource big country, its resource accounts for generation
The 60% of boundary's total amount, but the price of China's export magnesium ingot and magnesium alloy ingot is very cheap, and one of main cause is China's magnesium
With magnesium alloy ingot inferior quality, added value low it is impossible to meet external technical requirements to high-quality magnesium ingot and magnesium alloy ingot.
Magnesium smelting furnace is magnesium or the special equipment of magnesium alloy fusing, and current China magnesium industry is big in Melting Magnesium or magnesium alloy
It is all to carry out in open or semi-open magnesium smelting furnace, and using being continuously passed through the gas containing sf6 or similar as shielding gas
Body.Use protective gas in a large number, not only waste the energy, and there is to environment, equipment and human body very big harm.And, magnesium or
The crucible of magnesium alloy smelting mostly is mild steel, is passed through protective gas Melting Magnesium or magnesium in opening or semi-open magnesium smelting furnace
During alloy, the oxygen of in the air can enter crucible and react with high-temperature crucibles furnace wall, cause sidewall of crucible to aoxidize, not only reduce
Pot life, and easily pollution magnesium liquid or liquid magnesium alloy, are unfavorable for obtaining magnesium liquid or the liquid magnesium alloy of high-quality.When
Before, in order to reduce the corrosion to mild steel melting kettle, the method adopting spray paint, but coating has but become a new dirt more
Dye source, effect is unsatisfactory.
Additionally, currently used magnesium smelting furnace great majority using external-heat heating, that is, pass through external heat source, electricity or combustion gas
Heating magnesium and the crucible of magnesium alloy smelting, crucible transfers heat to magnesium or magnesium alloy again.This mode of heating thermal efficiency is extremely low,
Its thermal efficiency is less than 20%, causes energy waste, cost is also accordingly larger.Additionally, external-heat heating is for the ton of magnesium smelting furnace
Position also limits, and typically adopts its internal magnesium liquid of magnesium smelting furnace of external-heat heating or liquid magnesium alloy capacity not over 3 tons, due to
Magnesium smelting furnace tonnage is too small, disposably can be accordingly limited with the amount of Melting Magnesium or magnesium alloy, thus leading to work efficiency low.
Therefore, for improving the quality of magnesium and magnesium alloy in crucible, to adapt to expensive goods prescription, simultaneously in order to improve
The tonnage of magnesium smelting furnace and the efficiency of heating surface are it is necessary to improve to existing magnesium smelting furnace.
Content of the invention
The present invention proposes a kind of immersion and heats magnesium smelting furnace it is intended to the thermal efficiency solving the presence of magnesium smelting furnace is low, molten
Refining tonnage is little, melt out magnesium or the low series of problems of magnesium alloy quality.
The technical solution of the present invention is: immersion heating magnesium smelting furnace, including furnace shell, separate type bell, charging dress
Put, protective gas input equipment and melting kettle, described melting kettle is embedded in inside furnace shell, and described separate type bell is placed on stove
Above shell, described feeding device and protective gas input equipment are both secured on separate type bell, and feeding device and shielding gas
The upper end of body input equipment exceeds separate type bell, and the lower end of feeding device and protective gas input equipment is located at separate type bell
Inside following melting kettle, it is additionally provided with immersion heater and release transmitting device, described immersion heater and separate type
It is fixedly connected in removably between bell, and the upper end of immersion heater exceeds separate type bell, immersion heater
Lower end be located at separate type bell below melting kettle inside；The described transmitting device that releases runs through furnace shell and melting kettle, and
Positioned at the bottom of melting kettle side, its one end is located inside melting kettle, and the other end is located at outside furnace shell.
Further, above-mentioned immersion heats magnesium smelting furnace, wherein: it is additionally provided with a circulating pump on described separate type bell,
The upper end of this circulating pump exceeds separate type bell, and lower end is located inside the melting kettle of below separate type bell.
Further, above-mentioned immersion heats magnesium smelting furnace, wherein: described immersion heater includes tubular quill housing and sends out
Hot water radiation wire, described tubular quill housing adopts low-carbon steel material, and described heating resistance wire is placed on inside tubular quill housing, and in casing
It is filled with magnesia powder between pipe and resistance wire.
Further, above-mentioned immersion heats magnesium smelting furnace, wherein: described melting kettle is with rustless steel and carbon steel
The large-tonnage melting kettle that composite is made, and the section of melting kettle is " u " type.
Further, above-mentioned immersion heats magnesium smelting furnace, wherein: described feeding device be provided with first baffle, the
Two baffle plates and breather, described first baffle and second baffle are all telescopically inserted into the inside in feeding device, and the two
Be in different height, one end of described breather is located inside feeding device, and be located at first baffle and second baffle it
Between, the other end is located at the outside of feeding device.
Yet further, above-mentioned annealing furnace for aluminum nitrogen supply and control device, wherein: the described transmitting device that releases includes
Stainless steel tube and power supply, described stainless steel tube is connected with power supply, and one end of stainless steel tube is located inside melting kettle, the other end
Outside positioned at furnace shell.
Yet further, above-mentioned annealing furnace for aluminum nitrogen supply and control device, wherein: described protective gas input equipment
It is integrated with pressure gauge, superpressure vent valve and gas analyser.
The substantive distinguishing features that the present invention projects and significant technological progress are mainly reflected in:
(1) immersion heating magnesium smelting furnace of the present invention is no longer restricted to the tonnage of melting kettle, it is possible to use large-tonnage
Melting kettle, increase the capacity of magnesium liquid or liquid magnesium alloy, can disposably melting more magnesium liquid or magnesium alloy solution, carry
High work efficiency；And melting kettle made using rustless steel and carbon steel composite, in structure, the section of melting kettle is
" u " type, efficiently solves the problems, such as thermal expansion deformation；
(2) immersion heater is completely immersed in magnesium liquid or magnesium alloy solution, and the heat of generation is directly passed to magnesium liquid, its
The thermal efficiency is up to 70%, compared with external-heat mode of heating, substantially increases heat transfer efficiency, and the effect of " cost efficiency " is very bright
Aobvious；
(3) circulating pump makes in crucible magnesium liquid or liquid magnesium alloy circulation, heater heat is spread rapidly it is ensured that magnesium
Or magnesium alloy melting rate it is ensured that in whole burner hearth magnesium liquid live the temperature homogeneity of magnesium alloy, improve magnesium liquid or liquid magnesium alloy
Quality；
(4) protective gas input equipment input protective gas, utilizes gas analyser real-time detection crucible intrinsic pressure simultaneously
Power and atmosphere, supplement protective gas, in the case of ensureing safety in production, protective gas usage amount as needed into crucible
Minimum；
(5) feeding device can ensure that cut-off air during charging, is connected with shielding gas between its first baffle and second baffle
Body, improves the quality of magnesium liquid or liquid magnesium alloy；
(6) release transmitting device to be transferred to it by stainless steel tube from melting kettle using magnesium liquid or liquid magnesium alloy deadweight
Subordinate casts platform, and stainless steel tube is connected with power supply, and can be passed directly into high current makes stainless steel tube self-heating, prevents stainless
Steel pipe cooling is thus affect the situation generation of magnesium liquid or liquid magnesium alloy flowing.
Brief description
Fig. 1 is the structural representation that immersion heats magnesium smelting furnace.
In figure, the implication of each reference is: 1 feeding device, 11 first baffles, 12 second baffles, and 13 lead to
Device of air, 2 protective gas input equipment, 3 immersion heaters, 4 circulating pumps, 5 melting kettles, 6 separate type stoves
Lid, 7 release transmitting device, 8 furnace shells.
Specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, so that technical solution of the present invention is more
Should be readily appreciated that and grasp.
A kind of immersion heats magnesium smelting furnace, as shown in figure 1, including furnace shell 8, separate type bell 6, melting kettle 5, charging
Device 1, protective gas input equipment 2, immersion heater 3 and release transmitting device 7, melting kettle 5 is embedded in furnace shell 8
Portion, separate type bell 6 is placed on above furnace shell 8, and feeding device 1, circulating pump 4 and protective gas input equipment 2 are both secured to separate
On formula bell 6, it is fixedly connected in removably between immersion heater 3 and separate type bell 6.When separate type bell 6 covers
When on furnace shell 8, closed seamless gap between separate type bell 6 and furnace shell 8, and make feeding device 1, protective gas input equipment
2nd, the bottom of circulating pump 4 and immersion heater 3 is respectively positioned on inside melting kettle 5 below 6 for the separate type bell；When separate type stove
After lid 6 is sling, can dismantle and change immersion heater 3.Release transmitting device 7 and run through furnace shell 8 and melting kettle 5, and pacify
It is loaded on the bottom of melting kettle 5 side, its one end is located inside melting kettle 5, and the other end is located at outside furnace shell 8.
Immersion heater 3 includes tubular quill housing and heating resistance wire, and tubular quill housing adopts low-carbon steel material, it is to avoid shell
Sleeve pipe is reacted with magnesium liquid or liquid magnesium alloy, and heating resistance wire is placed on inside tubular quill housing, tubular quill housing and resistance wire it
Between be filled with magnesia powder, not only good insulating is also equipped with high thermal conductivity to magnesium oxide simultaneously, solves single immersion and adds
The unsuitable problems of too of hot device 3 power, improves the surface power of immersion heater 3, and in immersion heater 3 built with super
Temperature protection thermocouple, makes the service life of immersion heater 3 increase.Melting kettle 5 is preferably at least 10 tons of large-tonnage
Melting kettle, and made using rustless steel and carbon steel composite, in structure, the section of melting kettle 5 is " u " type, effectively
Solve the problems, such as thermal expansion deformation, increased the service life of crucible.Protective gas input equipment 2 is integrated with pressure gauge, superpressure
Vent valve and gas analyser, reduce protective gas usage amount and can ensure that the safety of fusion process.Release transmission dress
Put 7 and include stainless steel tube and power supply, described stainless steel tube is connected with power supply, one end of stainless steel tube is located inside melting kettle 5,
The other end is located at furnace shell 8 outside and is connected with the casting platform of subordinate.After the completion of magnesium liquid or liquid magnesium alloy melting, using magnesium liquid
Or liquid magnesium alloy deadweight makes it be transferred to subordinate's casting platform from melting kettle 5 by stainless steel tube, in order to prevent stainless steel tube
Cooling, thus affecting magnesium liquid or liquid magnesium alloy flowing, can be passed directly into high current and make stainless steel tube self-heating.Charging dress
Put 1 and be provided with first baffle 11, second baffle 12 and breather 13, first baffle 11 and second baffle 12 are all telescopically inserted
Enter inside feeding device 1, and the two is in different height, first baffle 11, second baffle 12 and feeding device 1 are formed
Confined space must be enough to put into magnesium ingot or magnesium alloy ingot, and one end of breather 13 is located inside feeding device 1, and is located at the
Between one baffle plate 11 and second baffle 12, the other end is located at outside feeding device 1, is used for being passed through protective gas.
The present invention program implementing procedure is as follows: opens stokehold for the first time, needs to pour magnesium liquid or magnesium into large-tonnage melting kettle 5
Aluminium alloy, addition needs to meet the immersion heater 3 covering the bottom；Then need to start slowly to feeding device 1
Put into magnesium ingot or magnesium alloy ingot, when putting into magnesium ingot or magnesium alloy ingot, first the second baffle 12 of feeding device 1 is pulled out, then will
Magnesium ingot or magnesium alloy ingot put in feeding device 1, and now magnesium ingot or magnesium alloy ingot are located above first baffle 11, second gear afterwards
Plate indentation 12 and first baffle 11 pulls out, magnesium ingot or magnesium alloy ingot then can fall in melting kettle 5, ventilate in whole work process
Device 13 is always maintained at being passed through protective gas；Start circulating pump 4 simultaneously, treat immersion heater 3 by magnesium liquid or liquid magnesium alloy
Cover completely, then total power opens whole immersion heaters 3, protective gas input equipment 2 is whole to open, for separating sky
Gas.After magnesium liquid to be done or process for smelting magnesium alloy, magnesium liquid or liquid magnesium alloy can be transported to subordinate by releasing transmitting device 7
Casting platform.
By above description it can be seen that (1) immersion of the present invention heats magnesium smelting furnace to the tonnage of melting kettle no longer
Restricted, it is possible to use large-tonnage melting kettle, increase the capacity of magnesium liquid or liquid magnesium alloy, can disposably melting more
Magnesium liquid or magnesium alloy solution, improve work efficiency；And melting kettle made using rustless steel and carbon steel composite, knot
On structure, the section of melting kettle is " u " type, efficiently solves the problems, such as thermal expansion deformation；(2) immersion heater is completely immersed in magnesium
In liquid or magnesium alloy solution, the heat of generation is directly passed to magnesium liquid or liquid magnesium alloy, and its thermal efficiency is up to 70%, with external-heat
Mode of heating is compared, and substantially increases heat transfer efficiency；(3) circulating pump makes in crucible magnesium liquid or liquid magnesium alloy circulation, adding
The rapid diffusion of hot device heat it is ensured that magnesium or magnesium alloy melting rate it is ensured that in whole burner hearth magnesium liquid or liquid magnesium alloy temperature
Uniformity；(4) protective gas input equipment input protective gas, utilizes pressure in gas analyser real-time detection crucible simultaneously
And atmosphere, supplement protective gas into crucible as needed, in the case of ensureing safety in production, protective gas usage amount is
Few；(5) feeding device can ensure that cut-off air during charging, is connected with protective gas between its first baffle and second baffle, dress
Ensure during material that outside air does not enter；(6) release transmitting device to lead to it from melting kettle using magnesium liquid or liquid magnesium alloy deadweight
Cross stainless steel tube and be transferred to subordinate's casting platform, stainless steel tube is connected with power supply, and can be passed directly into high current makes stainless steel tube
Self-heating, prevents stainless steel tube cooling thus affecting the situation generation of magnesium liquid or liquid magnesium alloy flowing.
Certainly, the representative instance of the above simply present invention, in addition, the present invention can also have other multiple be embodied as
The technical scheme that mode, all employing equivalents or equivalent transformation are formed, all falls within the scope of protection of present invention.
Claims (6)
1. a kind of immersion heats magnesium smelting furnace, including furnace shell, separate type bell, feeding device, protective gas input equipment and
Melting kettle, described melting kettle is embedded in inside furnace shell, and described separate type bell is placed on above furnace shell, described feeding device and
Protective gas input equipment is both secured on separate type bell, and the upper end of feeding device and protective gas input equipment exceed point
From formula bell, the lower end of feeding device and protective gas input equipment is located inside the melting kettle of below separate type bell, its
It is characterised by: be additionally provided with immersion heater and release transmitting device, between described immersion heater and separate type bell be in
Removably is fixedly connected, and the upper end of immersion heater exceeds separate type bell, and the lower end of immersion heater is located at
Inside melting kettle below separate type bell；The described transmitting device that releases runs through furnace shell and melting kettle, and is located at melting earthenware
The bottom of crucible side, its one end is located inside melting kettle, and the other end is located at outside furnace shell；Described feeding device is provided with first
Baffle plate, second baffle and breather, described first baffle and second baffle are all telescopically inserted into the inside in feeding device,
And the two is in different height, one end of described breather is located inside feeding device, and is located at first baffle and second
Between baffle plate, the other end is located at the outside of feeding device.
2. immersion according to claim 1 heating magnesium smelting furnace it is characterised in that: be additionally provided with described separate type bell
One circulating pump, the upper end of this circulating pump exceeds separate type bell, and lower end is located inside the melting kettle of below separate type bell.
3. immersion according to claim 1 heating magnesium smelting furnace it is characterised in that: described immersion heater includes outer
Shell sleeve and heating resistance wire, described tubular quill housing adopts low-carbon steel material, and described heating resistance wire is placed on inside tubular quill housing,
And it is filled with magnesia powder between tubular quill housing and resistance wire.
4. immersion according to claim 1 heating magnesium smelting furnace it is characterised in that: described melting kettle is to use rustless steel
The large-tonnage melting kettle made with carbon steel composite, and the section of melting kettle is " u " type.
5. immersion according to claim 1 heating magnesium smelting furnace it is characterised in that: the described transmitting device that releases is included not
Rust steel pipe and power supply, described stainless steel tube is connected with power supply, and one end of stainless steel tube is located inside melting kettle, other end position
Outside in furnace shell.
6. immersion according to claim 1 heating magnesium smelting furnace it is characterised in that: described protective gas input equipment collection
Become to have pressure gauge, superpressure vent valve and gas analyser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410797500.2A CN104613759B (en) | 2014-12-19 | 2014-12-19 | Immersed type heating magnesium smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410797500.2A CN104613759B (en) | 2014-12-19 | 2014-12-19 | Immersed type heating magnesium smelting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104613759A CN104613759A (en) | 2015-05-13 |
| CN104613759B true CN104613759B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410797500.2A Expired - Fee Related CN104613759B (en) | 2014-12-19 | 2014-12-19 | Immersed type heating magnesium smelting furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340102A (en) * | 2021-06-21 | 2021-09-03 | 宁夏金圆化工有限公司 | Automatic production device and method for high-purity silicon iron |
| CN117249678B (en) * | 2023-11-20 | 2024-03-08 | 陕西茂松科创有限公司 | Titanium alloy smelting equipment convenient to material loading |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586912B (en) * | 2009-06-18 | 2010-10-20 | 苏州新长光热能科技有限公司 | Aluminum and aluminum alloy isothermal smelting furnace |
| CN201497347U (en) * | 2009-09-16 | 2010-06-02 | 苏州新长光热能科技有限公司 | Novel aluminium scrap smelting furnace |
| CN201575697U (en) * | 2009-11-24 | 2010-09-08 | 苏州有色金属研究院有限公司 | Pressure-flow magnesium alloy smelting holding furnace |
| KR101256621B1 (en) * | 2010-12-28 | 2013-04-19 | 재단법인 포항산업과학연구원 | Magnesium melting crucible |
| CN202885496U (en) * | 2012-10-29 | 2013-04-17 | 苏州新长光热能科技有限公司 | Aluminum and aluminum alloy high-efficient isothermal smelting furnace |
| CN203501762U (en) * | 2013-07-04 | 2014-03-26 | 岳阳宇航新材料有限公司 | Magnesium alloy smelting furnace with charging device |
| CN203881131U (en) * | 2014-05-14 | 2014-10-15 | 溧阳市德力信通用设备有限公司 | Crucible used for melting magnesium alloy |
| CN204461058U (en) * | 2014-12-19 | 2015-07-08 | 苏州新长光热能科技有限公司 | immersion heating magnesium smelting furnace |
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2014
- 2014-12-19 CN CN201410797500.2A patent/CN104613759B/en not_active Expired - Fee Related
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Granted publication date: 20170125 Termination date: 20181219 |