CN201176454Y - Smelting furnace - Google Patents
Smelting furnace Download PDFInfo
- Publication number
- CN201176454Y CN201176454Y CNU2008200119449U CN200820011944U CN201176454Y CN 201176454 Y CN201176454 Y CN 201176454Y CN U2008200119449 U CNU2008200119449 U CN U2008200119449U CN 200820011944 U CN200820011944 U CN 200820011944U CN 201176454 Y CN201176454 Y CN 201176454Y
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- smelting
- furnace
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- vision slit
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Abstract
The utility model relates to a smelting furnace, which belongs to the field of an metallurgical equipment, wherein the smelting furnace comprises an upper furnace body, a lower furnace body, a furnace cover lifting device, a vacuum system, a feeding device, a temperature measuring device, a casting inspection hole, a smelting inspection hole, an induction coil, an electrode rotation shaft, a water-cooled copper bar and an intermediate frequency power source, wherein an air-operated change-over valve which is used for pumping vacuum and changing over the inflating and the pressurizing working states is arranged in an air passage of the vacuum system, air dust removing devices are arranged on perspective windows on the casting inspection hole and the smelting inspection hole, an explosion-proof safety valve is arranged on the lower furnace body, two arcuate clamping rings which are used for tightly clamping are arranged between the upper furnace and the lower furnace, and a draw rod which is used for adjusting the clamping force of the arcuate clamping rings is arranged between the two arcuate clamping rings, a rotation shaft first sealing device and a rotation shaft second sealing device are arranged between an electrode rotation shaft and a furnace body rotation shaft seat, an interface which is connected with an air supplying system is arranged on one side of the air-operated change-over valve, and the induction coil in the furnace is a water-cooling round tubular wire. The furnace of the utility model has the advantages that special type alloy can be smelted under the vacuum pressurizing condition, and the furnace is particularly suitable for steel with high-nitrogen and steel with volatile elements.
Description
Technical field
The utility model belongs to field of metallurgical equipment, particularly relates to the smelting furnace that can smelt special alloy under vacuum and pressurized conditions.
Background technology
The metallurgical furnace that special alloy is carried out vacuum metling often adopts vacuum induction furnace at present, and this stove comprises vacuum system, body of heater, feeding device, temperature measuring equipment, casting system etc.But,, can't satisfy the smelting technology requirement as high nitrogen steel to smelting the steel grade that some contains Volatile Elements and elemental gas.
Summary of the invention
The utility model can't be smelted the disadvantage that some contains Volatile Elements and elemental gas steel grade at prior art, and a kind of smelting furnace is provided.This stove is intended to change the metallurgical reaction thermodynamic condition by improving the metallurgical reaction system pressure, and the pace of change by pressure, changes the dynamic conditions of metallurgical reaction, obtains the exotic materials that normal pressure can't prepare down.This stove can improve easy volatile element (Ca, Mg, Na, K...) and Gas Solubility (N, H), and changes metallurgical reaction direction and trend, simultaneously to the behavior of the solidifying generation material impact of alloy.The metallurgical metallurgy fundamental research of pressurizeing of available this stove as rules such as dissolving, react, solidify, especially can prepare special novel materials such as high nitrogen steel, foamed metal under pressurized conditions.
The utility model solves its technical problem, and the technical scheme that is adopted is: comprise upper furnace body, upper furnace body, furnace cover lifting device, vacuum system, feeding device, temperature measuring equipment, casting vision slit, smelt vision slit, ruhmkorff coil, electrode rotating shaft, water-cooled copper bar and intermediate frequency power supply.It is characterized in that: be provided with the air operated reversing valve door that vacuumizes and inflate pressurized operation state conversion usefulness in the vacuum system gas circuit; Casting vision slit and the perspective window of smelting on the vision slit are provided with the dedusting device; Lower furnace body is provided with the anti-riot safety valve of using; Be provided with between upper furnace body and the lower furnace body in order to connect at least two arc snap rings of tight lock, be provided with the pull bar of regulating arc snap ring locking force between the arc snap ring; Be provided with rotating shaft first tightness system and rotating shaft second tightness system between electrode rotating shaft and the body of heater axle bed; Air operated reversing valve door one side is provided with the interface that links to each other with airing system; The lead of the ruhmkorff coil in the stove is a water-cooled tubular type lead.Vacuum system includes sliding vane rotary pump, lobe pump, air operated reversing valve door and furnace shell inner chamber pipe coupling successively.Airing system includes gas cylinder at least, two groups of sources of the gas that needle-valve is formed airing system in parallel, be connected to first inflation valve on its source of the gas delivery trunk, second inflation valve, the 3rd inflation valve, the 3rd inflation valve outlet is connected with mouth-piece on the air operated reversing valve door, be the smelting furnace air feed, the outlet of second inflation valve is connected with smelting vision slit air feed mouth-piece, purge its perspective window dust, the outlet of first inflation valve is connected with casting vision slit air feed mouth-piece, purge its perspective window dust, before the air operated reversing valve door interface, be provided with pressure transmitter on the airing system pipeline, purging valve, the superpressure purging valve, sound damper pipe coupling is successively formed superpressure noise elimination blow-off system, and pressure transmitter is connected with superpressure purging valve signal.Casting vision slit, smelting vision slit are equipped with camera, monitoring casting or smelting process.Ruhmkorff coil, electrode rotating shaft, water-cooled copper bar, intermediate frequency power supply are electrically connected successively.Working pressure range 3Pa～the 6MPa of smelting furnace.
Wherein the air operated reversing valve door is a pneumatic baffle formula structure, and body of heater adopts double-deck water-cooled structure, and internal layer is the stainless steel manufacturing, and the pressing force container requires preparation, and safe maximum working pressure is 6MPa, and skin is the carbon steel manufacturing.Fire door is sealed into self-tightening compression seal formula, and arranges the tooth locking mechanism by the hydraulic pressure on the last bell, makes the fire door sealing can be in vacuum and direct draught work; Body of heater is provided with feeding device, there are four to add feed bin, can be at vacuum and direct draught, add the different-alloy material by outer surface motor and step-down gear transmission gradation, the temperature measuring equipment pressing force Vessel Design that body of heater is provided with designs it, the inner rack and pinion drive mechanism that adopts, and in the rise and fall of the continuous drive of motor transmission thermopair, show the thermopair travel position by encoder feedback, realize thermometric.Thermopair adopts the double platinum rhodium thermocouple wire, and the sintering metal protective tube is adopted in the thermocouple wire outside, is furnished with the secondary instrument that numeral shows simultaneously.
Be provided with ruhmkorff coil in the stove and adopt the manufacturing of circle copper tube, inductor block can fill under the barotropic state in vacuum and stove works.Pouring device adopts the hydraulic pressure mode of verting, and can realize that casting rate is adjustable continuously.
Airing system: the gas omnibus bar is set, can connects six gas cylinders.A pressure display table is set on the omnibus bar, and configuration needle-valve and inflation valve are communicated with stove is interior, satisfy the requirement of pressurization melting atmosphere.
Safety system: three kinds of protected modes are set: electronic purging valve is set, can be used for pressure transmitter safe pressure is set, control venting superpressure automatic deflation; The imitative sudden and violent system of safety is set, wherein is provided with safety valve, surpass the safe pressure automatic deflation, and rupture disk is set when pressure raises suddenly, exits.
The beneficial effect that the utility model has compared to existing technology is, can realize under vacuum and the pressurized conditions smelting to special alloy, particularly by improving the pressure of metallurgical reaction system, change the thermodynamic condition of metallurgical reaction system, and change the dynamic conditions of metallurgical reaction system by the pace of change of pressure, with the exotic materials that obtains under normal pressure, can't prepare.This stove can improve easy volatile element and the solubleness of gas in alloy, and changes the direction and the trend of reaction, simultaneously to the behavior of the solidifying generation material impact of alloy.Can utilize this stove metallurgical theoretical basis research of pressurizeing,, especially under pressurized conditions, can prepare special novel materials such as high nitrogen steel, foamed metal as rules such as dissolving, react, solidify.This equipment is suitable for the smelting of vacuum and pressurized conditions special alloy, be particularly suited for smelting high-nitrogen steel, contain the special steel of Volatile Elements, be suitable for the metallurgy theoretical basis research that large-scale iron and steel enterprise and technique center, colleges and universities and scientific research institutions' developing new product variety and special alloy are smelted.
Description of drawings
Fig. 1 is the front view of the utility model smelting furnace.
Fig. 2 is an electrolysis rotating shaft sealing structure synoptic diagram among Fig. 1.
Fig. 3 is the left view of the utility model smelting furnace.
Fig. 4 is the vertical view of the utility model smelting furnace.
Fig. 5 is the vacuum and the airing system figure of the utility model smelting furnace.
1 intermediate frequency power supply among the figure, 2 water-cooled copper bars, 3 electrode rotating shafts, 4 ruhmkorff coils, 5 sliding vane rotary pumps, 6 lobe pumps, 7 interfaces, 8 air operated reversing valve doors, 9 upper furnace bodies, 10 feeding devices, 11 temperature measuring equipments, 12 casting vision slit air feed interfaces, 13 cameras, 14 casting vision slits, 15 arc snap rings, the imitative sudden and violent valve of 16 safety, 17 lower furnace bodies, 18 water mold, 19 bleed-outs connect dish, 20 furnace cover lifting mechanisms, 21 pull bars, 22 smelt vision slit, 23 smelt vision slit air feed interface, 24 gas cylinders, 25 needle-valves, 26 first inflation valves, 27 second inflation valves, 28 the 3rd inflation valves, 29 pressure transmitters, 30 purging valves, 31 superpressure purging valves, 32 sound dampers, 33 first extraction valves, 34 vacuum breaker purging valves, 35 second extraction valves, 36 rotating shafts, first tightness system, 37 rotating shafts, second tightness system.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is done following explanation, by Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 as can be known, this stove comprises upper furnace body 9, lower furnace body 17, furnace cover lifting device 20, vacuum system, feeding device 10, temperature measuring equipment 11, casting vision slit 14, smelts vision slit 22, ruhmkorff coil 4, electrode rotating shaft 3, water-cooled copper bar 2 and intermediate frequency power supply 1.Be provided with the air operated reversing valve door 8 that vacuumizes and inflate pressurized operation state conversion usefulness in the vacuum system gas circuit; Casting vision slit 14 and the perspective window of smelting on the vision slit 22 are provided with the dedusting device; Lower furnace body 17 is provided with the anti-riot valve 16 of safety; Be provided with between upper furnace body 9 and the lower furnace body 17 in order to connect at least two arc snap rings 15 of tight lock, 15 of arc snap rings are provided with the pull bar 21 of regulating arc snap ring locking force; Be provided with rotating shaft first tightness system 36 and rotating shaft second tightness system 37 between electrode rotating shaft 3 and the body of heater axle bed; Air operated reversing valve door 8 one sides are provided with the interface 7 that links to each other with airing system; The lead of the ruhmkorff coil 4 in the stove is water-cooled tubular type leads.Vacuum system includes sliding vane rotary pump 5, lobe pump 6, air operated reversing valve door 8 and furnace shell inner chamber pipe coupling successively.Airing system includes gas cylinder 24 at least, two groups of sources of the gas that needle-valve 25 is formed airing system in parallel, be connected to first inflation valve 26 on its source of the gas delivery trunk, second inflation valve 27, the 3rd inflation valve 28, interface 7 pipe coupling on 28 outlets of the 3rd inflation valve and the air operated reversing valve door 8, be the smelting furnace air feed, 27 outlets of second inflation valve and smelting vision slit air feed interface 23 pipe coupling, purge its perspective window dust, 26 outlets of first inflation valve and casting vision slit air feed interface 12 pipe coupling, purge its perspective window dust, before air operated reversing valve door 8 interfaces, be provided with pressure transmitter 29 on the airing system pipeline, purging valve 30, superpressure purging valve 31, sound damper 32 pipe coupling is successively formed superpressure noise elimination blow-off system, and pressure transmitter 29 is connected with superpressure purging valve 31 signals.Casting vision slit 14, smelting vision slit 22 are equipped with camera 13, monitoring casting or smelting process.Ruhmkorff coil 4, electrode rotating shaft 3, water-cooled copper bar 2, intermediate frequency power supply 1 are electrically connected successively.
Wherein air operated reversing valve door 8 is a pneumatic baffle formula structure, and body of heater adopts double-deck water-cooled structure, and internal layer is the stainless steel manufacturing, and the pressing force container requires preparation, and safe maximum working pressure is 6MPa, and skin is the carbon steel manufacturing.Fire door is sealed into self-tightening compression seal formula, and arranges the tooth locking mechanism by the hydraulic pressure on the last bell, makes the fire door sealing can be in vacuum and direct draught work; Body of heater is provided with feeding device 10, there are four to add feed bin, can be at vacuum and direct draught, add the different-alloy material by outer surface motor and step-down gear transmission gradation, the temperature measuring equipment 11 pressing force Vessel Design that body of heater is provided with design it, the inner rack and pinion drive mechanism that adopts, and in the rise and fall of the continuous drive of motor transmission thermopair, show the thermopair travel position by encoder feedback, realize thermometric.Thermopair adopts the double platinum rhodium thermocouple wire, and the sintering metal protective tube is adopted in the thermocouple wire outside, is furnished with the secondary instrument that numeral shows simultaneously.
Be provided with ruhmkorff coil 4 in the stove and adopt the manufacturing of circle copper tube, inductor block can fill under the barotropic state in vacuum and stove works.Pouring device adopts the hydraulic pressure mode of verting, and can realize that casting rate is adjustable continuously.
Airing system: the gas omnibus bar is set, can connects six gas cylinders 24.A pressure display table is set on the omnibus bar, and configuration needle-valve 25 and inflation valve are communicated with stove is interior, satisfy the requirement of pressurization melting atmosphere.
Safety system: three kinds of protected modes are set: the superpressure purging valve is set, can be used for pressure transmitter safe pressure is set, control venting superpressure automatic deflation; The imitative sudden and violent system of safety is set, wherein is provided with safety valve, surpass the safe pressure automatic deflation, and rupture disk is set when pressure raises suddenly, exits.
Claims (6)
1. smelting furnace, comprise upper furnace body, upper furnace body, furnace cover lifting device, vacuum system, feeding device, temperature measuring equipment, casting vision slit, smelt vision slit, ruhmkorff coil, electrode rotating shaft, water-cooled copper bar and intermediate frequency power supply, it is characterized in that: be provided with the air operated reversing valve door that vacuumizes and inflate pressurized operation state conversion usefulness in the vacuum system gas circuit; Casting vision slit and the perspective window of smelting on the vision slit are provided with the dedusting device; Lower furnace body is provided with the anti-riot safety valve of using; Be provided with between upper furnace body and the lower furnace body in order to connect at least two arc snap rings of tight lock, be provided with the pull bar of regulating arc snap ring locking force between the arc snap ring; Be provided with rotating shaft first tightness system and rotating shaft second tightness system between electrode rotating shaft and the body of heater axle bed; Air operated reversing valve door one side is provided with the interface that links to each other with airing system; The lead of the ruhmkorff coil in the stove is a water-cooled tubular type lead.
2. smelting furnace according to claim 1 is characterized in that: vacuum system includes sliding vane rotary pump, lobe pump, air operated reversing valve door and furnace shell inner chamber pipe coupling successively.
3. according to claim 1 and 2 described smelting furnaces, it is characterized in that: airing system includes gas cylinder at least, two groups of sources of the gas that needle-valve is formed airing system in parallel, be connected to first inflation valve on its source of the gas delivery trunk, second inflation valve, the 3rd inflation valve, the 3rd inflation valve outlet is connected with mouth-piece on the air operated reversing valve door, be the smelting furnace air feed, the outlet of second inflation valve is connected with smelting vision slit air feed mouth-piece, purge its perspective window dust, the outlet of first inflation valve is connected with casting vision slit air feed mouth-piece, purge its perspective window dust, before the air operated reversing valve door interface, be provided with pressure transmitter on the airing system pipeline, purging valve, the superpressure purging valve, sound damper pipe coupling is successively formed superpressure noise elimination blow-off system, and pressure transmitter is connected with superpressure purging valve signal.
4. smelting furnace according to claim 1 is characterized in that said casting vision slit, smelting vision slit are equipped with camera, monitoring casting or smelting process.
5. smelting furnace according to claim 1 is characterized in that said ruhmkorff coil, electrode rotating shaft, water-cooled copper bar, intermediate frequency power supply are electrically connected successively.
6. smelting furnace according to claim 1 is characterized in that the working pressure range 3Pa～6MPa of smelting furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200119449U CN201176454Y (en) | 2008-04-03 | 2008-04-03 | Smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200119449U CN201176454Y (en) | 2008-04-03 | 2008-04-03 | Smelting furnace |
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| CN201176454Y true CN201176454Y (en) | 2009-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200119449U Expired - Fee Related CN201176454Y (en) | 2008-04-03 | 2008-04-03 | Smelting furnace |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644107A (en) * | 2012-04-20 | 2012-08-22 | 上海汉虹精密机械有限公司 | Polycrystal furnace chamber buckling device |
| CN102679728A (en) * | 2012-05-18 | 2012-09-19 | 株洲金鼎高端装备有限公司 | Energy-saving environment-friendly type smelting furnace |
| CN104197708A (en) * | 2014-08-14 | 2014-12-10 | 辽宁永动力能源材料有限公司 | Vacuum-high pressure smelting furnace for smelting hydrogen storage alloy and A2B7 hydrogen storage alloy preparation method |
| CN104451355A (en) * | 2014-11-05 | 2015-03-25 | 武汉钢铁(集团)公司 | High phosphorous cast iron inoculating treatment method device in vacuum induction furnace |
| CN104567401A (en) * | 2015-01-09 | 2015-04-29 | 上海交通大学 | Melt medium-frequency induction and high-temperature heating device |
| CN105057641A (en) * | 2015-08-10 | 2015-11-18 | 航天海鹰(哈尔滨)钛业有限公司 | Novel smelting furnace |
| CN106786619A (en) * | 2016-12-26 | 2017-05-31 | 东北大学 | A kind of induction furnace iron bathes the peak load regulation network system and method for coal gasification |
| CN110282975A (en) * | 2019-07-08 | 2019-09-27 | 先导薄膜材料（广东）有限公司 | A kind of Germanium selenide target and preparation method thereof |
| CN113324409A (en) * | 2021-06-07 | 2021-08-31 | 南京国重新金属材料研究院有限公司 | High-nitrogen pressure smelting system |
-
2008
- 2008-04-03 CN CNU2008200119449U patent/CN201176454Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644107A (en) * | 2012-04-20 | 2012-08-22 | 上海汉虹精密机械有限公司 | Polycrystal furnace chamber buckling device |
| CN102679728A (en) * | 2012-05-18 | 2012-09-19 | 株洲金鼎高端装备有限公司 | Energy-saving environment-friendly type smelting furnace |
| CN102679728B (en) * | 2012-05-18 | 2014-03-26 | 株洲金鼎高端装备有限公司 | Energy-saving environment-friendly type smelting furnace |
| CN104197708A (en) * | 2014-08-14 | 2014-12-10 | 辽宁永动力能源材料有限公司 | Vacuum-high pressure smelting furnace for smelting hydrogen storage alloy and A2B7 hydrogen storage alloy preparation method |
| CN104451355A (en) * | 2014-11-05 | 2015-03-25 | 武汉钢铁(集团)公司 | High phosphorous cast iron inoculating treatment method device in vacuum induction furnace |
| CN104451355B (en) * | 2014-11-05 | 2017-03-08 | 武汉钢铁(集团)公司 | High-phosphorous iron inoculation treating method and device in a kind of vaccum sensitive stove |
| CN104567401A (en) * | 2015-01-09 | 2015-04-29 | 上海交通大学 | Melt medium-frequency induction and high-temperature heating device |
| CN105057641A (en) * | 2015-08-10 | 2015-11-18 | 航天海鹰(哈尔滨)钛业有限公司 | Novel smelting furnace |
| CN106786619A (en) * | 2016-12-26 | 2017-05-31 | 东北大学 | A kind of induction furnace iron bathes the peak load regulation network system and method for coal gasification |
| CN106786619B (en) * | 2016-12-26 | 2019-04-26 | 东北大学 | A kind of peak load regulation network system and method for induction furnace iron bath coal gasification |
| CN110282975A (en) * | 2019-07-08 | 2019-09-27 | 先导薄膜材料（广东）有限公司 | A kind of Germanium selenide target and preparation method thereof |
| CN113324409A (en) * | 2021-06-07 | 2021-08-31 | 南京国重新金属材料研究院有限公司 | High-nitrogen pressure smelting system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090107 Termination date: 20110403 |