CN103398586A - Underflow-type anti-vortex central stopper and nozzle lifting mechanism of electromagnetic induction slag smelter - Google Patents
Underflow-type anti-vortex central stopper and nozzle lifting mechanism of electromagnetic induction slag smelter Download PDFInfo
- Publication number
- CN103398586A CN103398586A CN2013103186366A CN201310318636A CN103398586A CN 103398586 A CN103398586 A CN 103398586A CN 2013103186366 A CN2013103186366 A CN 2013103186366A CN 201310318636 A CN201310318636 A CN 201310318636A CN 103398586 A CN103398586 A CN 103398586A
- Authority
- CN
- China
- Prior art keywords
- stopper
- river
- fixed
- mouth
- oil motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention relates to an underflow-type anti-vortex central stopper and nozzle lifting mechanism of an electromagnetic induction slag smelter. The mechanism is characterized in that supports are fixed on fixed beams, a cross beam is fixed on the supports through springs, a drive nut is fixed on the cross beam, a threaded part of a lifting sleeve is connected with the drive nut in a screwed manner, an oil motor is fixed on an oil motor support, a gear is connected with an output shaft of the oil motor and meshes with a gear of the lifting sleeve, a stopper is fixed at the top of the lifting sleeve, and the stopper locates at an upper opening of a nozzle. The mechanism has the advantages that the process using the mechanism compared to the cupolas rock wool process can save more than 60% of energy consumption per ton; secondary environment pollution is avoided; the bottom-leak deslagging nozzle guarantees accurate flow; the furnace burden structure is wider in adaptation range; a slag bath with the upper temperature limit of 1700 DEG C is satisfactory to melts of various qualities, with no need for coke; magnetic stirring and mechanical stirring guarantee even melt ingredients; energy consumption is low, heat efficiency is high, waste residue is little, and fiber forming rate is evidently advantageous as well as cost.
Description
Technical field
What the present invention proposed is the stopper mouth of a river, the anti-whirlpool center of a kind of electromagnetic induction slag smelting furnace underflow type rotary lifting mechanism, belongs to slag melting equipment technology field.
Background technology
The process energy consumption of blast furnace ironmaking accounts for 60% of steel and iron industry total energy consumption, is the energy consumption rich and influential family of steel and iron industry, and its energy-saving and emission-reduction have a high potential.Blast furnace slag is a kind of solid waste that blast furnace ironmaking gives off, and in its processing procedure, not only consumes a large amount of energy, also discharges a large amount of harmful substances simultaneously.Therefore, the research of carrying out blast furnace slag recycling aspect is very necessary, a kind of industrial solid wastes of blast furnace slag.The slag of discharging in the blast furnace ironmaking process, claim again blast-furnace cinder, can be divided into conversion pig slag, foundry iron slag, ferromanganese ore slag etc.The states such as China and the Soviet Union use titanomagnetite ironmaking in some areas, discharge the vanadium titanium blast furnace slag.According to grade of ore difference, 1 ton of iron of every refining is discharged 0.3～1 ton of slag, and the grade of ore is lower, and bed drain purge is larger.China approximately discharges more than 2,000 ten thousand tons at present every year.Slag is thrown the meeting land occupation aside, waste resource, contaminated environment.Germany namely started to utilize blast furnace slag in 1589.After mid-term in 20th century, the blast furnace slag comprehensive utilization develops rapidly.Many countries such as the U.S., Britain, Canada, France, the Federal Republic of Germany, Sweden, Belgium have all accomplished deslagging then at present, are finished then, have all realized resource.Japan's utilization rate in 1980 is 85%, and Soviet Union's utilization rate in 1979 is more than 70%, and China's utilization rate in 1981 is 83%.
Blast furnace slag is the refuse from discharging blast furnace while smelting the pig iron, when furnace temperature reaches 1400-1600 ℃, the furnace charge melting, the gangue in ore, the ash content in coke and cosolvent and other impurity formation that can not enter in the pig iron float over the slag above molten iron take silicate and aluminate as leading.In blast-furnace cinder, main chemical composition is SiO2, Al2O3, CaO, MgO, MnO, FeO, S etc.In addition, some slag also contains the TiO2 of trace, V2O5, Na2O, BaO, P2O5, Cr2O3 etc.CaO in blast-furnace cinder, SiO2, Al2O3 account for more than 90% of weight.
Mineral wool flows with compressed air or the very thin slag of high steam winding-up, can produce mineral wool, mineral wool can be used as insulation material, sound-absorbing material and fire proofing material etc., and the finished product of being processed by its has warming plate, insulation quilt, heat-preservation cylinder, insulation belt, abatvoix, narrow felt rug, sound-absorbing band, refractory slab and heat resistance fiber etc.Mineral wool is widely used in the departments such as metallurgy, machinery, building, chemical industry and traffic.
Direct winding-up blast furnace cinder, technique is simple, invest less, but slag wool difficult quality guarantee.Take slag as primary raw material, add silica, basalt, andesite, sometimes also can add the adjustment compositions such as lime, then blowing after fusing, can obtain the high-quality mineral wool.Many countries are all at the operating mine slag wool.In addition, blast furnace slag also can be used as the raw material of cast stone, devitrified glass, fertilizer, enamel, pottery etc.
The method of operating mine slag wool has two kinds of blowing process and centrifugal process.Raw material flows out after melt in furnace, namely with steam or compressed air spraying, become the method for mineral wool to be called blowing process.Raw material is dropping on after melt in furnace on rotating disk, and the method for making mineral wool with centrifugal force is called centrifugal process.
The primary raw material of mineral wool is blast-furnace cinder, accounts for 80%～90%, also has 10%～20% dolomite, fluorite or other as common brick head, cobble etc., and the fuel of operating mine slag wool is coke.Produce a minute batching, fusing winding-up, 3 operations of packing.
Usually the technological process of blowing process operating mine slag wool as shown in Figure 1.
The mineral wool melting equipment is comprised of smelting furnace (furnace cupola or combustion gas tank furnace etc.), feeder, four roller centrifuges etc. usually.
Usually the technique of operating mine slag wool is dried slag to be melt into its method of liquid slag as follows:
1, pulverized fuel and raw material are burnt in the helical form turbulent gases, generate silicate melt, and then silicate melt is configured as to mineral wool fiber.Raw meal ash or slag are spurted into the burning gases highest temperature zone.The raw material proportioning is: every 100 parts of fine coal, 50-300 parts of mineral wool raw materials, remove mineral wool raw materials in addition and also added 3-9% fine-powdered acidity.
2, coke smelting furnace (furnace cupola).
3, combustion gas tank furnace, the tank furnace refractory material laying, enter in pond to melt slag charge by spray gun by right gas blowout.
4, metal electrode arc-melting slag charge (small-sized).
The blast furnace warm sludge that accounts for 80%～90% is directly filled to people's electromagnetic induction slag smelting furnace (15t-20t slag), also have 10%～20% dolomite, fluorite or other as ore charges such as common brick head, cobbles as additive, heating to 1550 degree left and right adjusts slag composition and in skull melting furnace, guarantees melt constant temperature, the slag stream of high-temperature liquid state flow-controllable is provided for subordinate's operation, is the key technology of producing the high-quality mineral wool.
The slag stream of controlled constant flow is the key that subordinate's blowing process and centrifugal process are produced the high-quality mineral wool, and the holding furnace bottom is thicker, and the factors such as a long section mouth of a river temperature is lower are arranged, and melted gangue meeting blocking channel, more can not control the flow that the high temperature slag flows.
High-temperature slag will coagulate pasty state, mobility and poor characteristics cooling to 1300 about degree.
Summary of the invention
The present invention proposes the stopper mouth of a river, the anti-whirlpool center of a kind of electromagnetic induction slag smelting furnace underflow type rotary lifting mechanism, and its purpose is intended to solve the difficult problem of high temperature slag constant temperature flow-control, for producing the high-quality mineral wool, gets through bottleneck.It is solidifying stifled that stream is opened in the flow-control of high-temperature liquid state slag, quantifies smoothly melt cinder.Meet the technology requirement that rock wool produces.
of the present invention
technical solution: the stopper mouth of a river, the anti-whirlpool center of a kind of electromagnetic induction slag smelting furnace underflow type rotary lifting mechanism, it is characterized in that comprising gear, oil motor, support, built-in beam, stopper rod, the stopper circular cone single hole mouth of a river that graphite material forms, lifting cover and spring, crossbeam, transmission nut, the oil motor support, its medium-height trestle is fixed on built-in beam, crossbeam is fixed on support by spring, transmission nut is fixed on crossbeam, the threaded portion that lifting puts screws and is connected with transmission nut, oil motor is fixed on the oil motor support, gear is connected with the oil motor output shaft, the gear engagement of gear and lifting cover, stopper rod is fixed on lifting cover top, it is suitable for reading that stopper rod is positioned at the mouth of a river, the stopper circular cone single hole mouth of a river is embedded in the furnace bottom of anti-material typing seat,
During work, drive oil motor, the rotation of oil motor driven gear, when gear rotarily drives the rotation of lifting cover, rise or descend together with stopper rod fixed thereon, realizes that stopper rod cuts out or open the mouth of a river suitable for reading.
Of the present invention
Advantage: (the electromagnetic induction slag smelting furnace of being furnished with the stopper mouth of a river, the anti-whirlpool center of underflow type rotary lifting mechanism)
1) with furnace cupola rock wool technique, compare, the energy consumption of saving per ton is more than 60%; 2) belong to pure cleaner production, environment is not had to secondary pollution; 3) electromagnetic induction blast furnace slag smelting furnace power factor is high, and energy consumption is low, and programming rate is fast; 4) end, spill the peculiar design of pulp water mouth, guarantees that flow is accurate, and arbitrarily switch, do not waste melt; 5) the burden structure adaptive surface is larger, and charge composition can be regulated arbitrarily; 6) the slag bath temperature upper limit reaches requirement that 1700 degree can adapt to various quality melts without coke, without entering the ashes contaminating impurity that grades; 7) magnetic agitation adds mechanical agitation and guarantees that bath composition is even; 8) energy consumption is low, and the thermal efficiency is high, and the waste residue amount is little, and the fibroblast rate is expensive with the obvious advantage.
The accompanying drawing explanation
Fig. 1 is the process chart of common blowing process operating mine slag wool.
Fig. 2 is the process chart of short flow process operating mine slag wool.
Fig. 3 is the main TV structure schematic diagram of the stopper mouth of a river, the anti-whirlpool center of a kind of electromagnetic induction slag smelting furnace underflow type rotary lifting mechanism.
Fig. 4 is the plan structure schematic diagram of the stopper mouth of a river, the anti-whirlpool center of a kind of electromagnetic induction slag smelting furnace underflow type rotary lifting mechanism.
In figure 1 is gear, the 2nd, oil motor, the 3rd, support, the 4th, built-in beam, the 5th, stopper rod, the 6th, the mouth of a river, the 7th, lifting cover, the 8th, spring, the 9th, crossbeam, the 10th, transmission nut, the 11st, oil motor support.
The specific embodiment
During work, drive oil motor 2, oil motor 2 driven gears 1 rotations, when gear 1 rotarily drives 7 rotation of lifting cover, rise or descend together with stopper rod 5 fixed thereon, realizes that stopper rod 5 cuts out or open the mouth of a river 6 suitable for reading.
The described graphite material stopper circular cone single hole mouth of a river 6 interior bore 10mm-30mm, the perforate footpath 60mm below hole, the graphite material stopper circular cone single hole mouth of a river 6 length 400mm, inlay sizing graphite mouth of a river part, exceeds the furnace bottom Plane Installation.
The course of work: drive oil motor 2, driven gear 1 rotation, when gear 1 rotarily drives 7 rotation of lifting cover, rise or descend together with stopper rod 5 fixed thereon, by stopper rod 5, closes or open the mouth of a river 6 suitable for reading.
Short flow process slag wool production, by the blast furnace warm sludge directly or the transhipment warm sludge hired car Melting and adjustment warm sludge smelting furnace of packing into.Smelting furnace adopts variable-frequency power sources, the high-temperature fusion slag that can utilize the special graphite heater electrode in smelting furnace to produce.The blast furnace warm sludge is accounted for to 80%～90%, also have 10%～20% dolomite, fluorite or other are as ore charges such as common brick head, cobbles, heat to 1550 degree left and right, adjust slag composition warm sludge is done to the intensification modifier treatment, rear by the poor person who lives in exile's slag constant temperature smelting furnace of stream, and flow for subordinate's operation provides the slag of steady temperature, flow-controllable.
Air-cored axis is rotated in the middle driving of hanging of electromagnetic induction slag smelting furnace bell, is the lowering or hoisting gear of anti-whirlpool center stopper.The spiral lift device of anti-whirlpool center stopper is arranged on the lifting frame SMIS under the smelting furnace cantilever.By two hydraulic drive motors and tooth case, drive rotation and lifting, the about 150mm of lifting distance.Anti-whirlpool central plug club head diameter more than two times, has anti-eddy-currents effect greater than mouth of a river internal diameter on chock plug, before using, stopper clogs the special graphite of the furnace bottom mouth of a river.
It includes the stopper circular cone single hole mouth of a river 6 that a graphite material forms this device.The stopper circular cone single hole mouth of a river 6 is embedded in the furnace bottom of anti-material typing seat, is convenient to transposing.The about 60mm macropore in perforate footpath below bore (10mm-30mm) in cone, hole, avoid flowing the slag dross and stop up.The about 400mm of cone mouth of a river length, can inlay sizing graphite mouth of a river part, can exceed the furnace bottom Plane Installation.
Melting and adjustment warm sludge smelting furnace, by fortune stove dolly, electromagnetic induction body of heater (3t---60t), variable-frequency power sources (1000---20000kw), the compositions such as the induction electrode of the bell of liftable, rotation, liftable, rotation, calculating meter, plc control system.
as shown in Figure 2, the technique of short flow process slag wool production is by the blast furnace warm sludge directly or the transhipment warm sludge hired car Melting and adjustment warm sludge smelting furnace of packing into, (warm sludge pack into energy-saving effect remarkable), the blast furnace warm sludge is 1500 degree left and right approximately, pack into after Melting and adjustment warm sludge smelting furnace and can cool to about 1200 degree left and right, electromagnetic induction by Melting and adjustment warm sludge smelting furnace is warmed up to about 1500 degree left and right, in 80%～90% blast furnace warm sludge, adding 10%～20% quartz etc. carries out modifiedly being warmed up to about 1500 degree left and right (purpose that adds quartz being the grade of modified raising slag wool again, the blast furnace slag wool is become to the mineral wool that quality is high, ).
The modified melted gangue that is warmed up to about 1500 degree left and right, by chute by the hot slag stream slag constant temperature holding furnace of packing into, slag constant temperature holding furnace has the melt cinder stem bar of two controllable flow rates, and the slag that the warm sludge stem bar flows out flows to down to be made together cotton equipment and make mineral wool.(two kinds of cotton method blowing processes of system and centrifugal process are arranged).
The composition of blast furnace warm sludge comprises chemical composition and mineral composition.
In the chemical composition blast furnace slag, usually contain the chemical composition more than 15 kinds.The project of blast furnace slag complete analysis is SiO2, Al2O3, CaO, MgO, MnO, Fe2O3, S.Some special slags are also analyzed TiO2, V2O5, P2O5, Na2O, BaO, Cr2O3, Ni2O3 etc.In all these chemical compositions, CaO, SiO2, Al2O3, tetra-kinds of compositions of MgO are main, and they account for 95% of gross weight.SiO2 and Al2O3 are from the gangue in ore and the ash content in coke, and CaO and MgO are mainly from flux, and blast furnace slag is exactly mainly silicate and the aluminate that is comprised of these four kinds of oxides.
This device solves the difficult problem of high temperature slag constant temperature flow-control, for producing the high-quality mineral wool, get through bottleneck.It is solidifying stifled that stream is opened in the flow-control of high-temperature liquid state slag, quantifies smoothly melt cinder.Meet the technology requirement that rock wool produces.
Not only intensification of smelting furnace, temperature adjustment, insulation, modified superior performance, and struck capacity is large, for good basis has been established in large-scale production.Not only intensification of smelting furnace, temperature adjustment, insulation, modified superior performance, and struck capacity is large, for good basis has been established in large-scale production.Hot charging blast furnace slag smelting process more is conducive to adapt to the market demand of mineral wool and goods great development distant view thereof.
Claims (2)
1. an electromagnetic induction slag smelting furnace underflow type is prevented the stopper mouth of a river, whirlpool center rotary lifting mechanism, it is characterized in that comprising gear, oil motor, support, built-in beam, stopper rod, the graphite material stopper circular cone single hole mouth of a river, lifting cover and spring, crossbeam, transmission nut, the oil motor support, its medium-height trestle is fixed on built-in beam, crossbeam is fixed on support by spring, transmission nut is fixed on crossbeam, the threaded portion that lifting puts screws and is connected with transmission nut, oil motor is fixed on the oil motor support, gear is connected with the oil motor output shaft, the gear engagement of gear and lifting cover, stopper rod is fixed on lifting cover top, it is suitable for reading that stopper rod is positioned at the mouth of a river, the graphite material stopper circular cone single hole mouth of a river is embedded in the furnace bottom of anti-material typing seat,
During work, drive oil motor, the rotation of oil motor driven gear, when gear rotarily drives the rotation of lifting cover, rise or descend together with stopper rod fixed thereon, realizes that stopper rod cuts out or open the mouth of a river suitable for reading.
2. a kind of electromagnetic induction slag smelting furnace underflow type according to claim 1 is prevented the stopper mouth of a river, whirlpool center rotary lifting mechanism, it is characterized in that bore 10mm-30mm in the described graphite material stopper circular cone single hole mouth of a river, perforate footpath 60mm below hole, graphite material stopper circular cone single hole mouth of a river length 400mm, inlay sizing graphite mouth of a river part, exceed the furnace bottom Plane Installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310318636.6A CN103398586B (en) | 2013-07-26 | 2013-07-26 | Underflow-type anti-vortex central stopper and nozzle lifting mechanism of electromagnetic induction slag smelter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310318636.6A CN103398586B (en) | 2013-07-26 | 2013-07-26 | Underflow-type anti-vortex central stopper and nozzle lifting mechanism of electromagnetic induction slag smelter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103398586A true CN103398586A (en) | 2013-11-20 |
| CN103398586B CN103398586B (en) | 2014-10-22 |
Family
ID=49562261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310318636.6A Active CN103398586B (en) | 2013-07-26 | 2013-07-26 | Underflow-type anti-vortex central stopper and nozzle lifting mechanism of electromagnetic induction slag smelter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103398586B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112266164A (en) * | 2020-09-29 | 2021-01-26 | 西安建筑科技大学 | Device and method for preparing mineral wool fibers |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5948351A (en) * | 1996-12-27 | 1999-09-07 | Shouzui Yasui | Outlet device for a melting crucible |
| CN1228725A (en) * | 1996-07-02 | 1999-09-15 | 福塞科国际有限公司 | Stopper rod |
| CN201735786U (en) * | 2010-08-26 | 2011-02-09 | 西安秦翔科技有限责任公司 | Leading screw-motor servo automatic control stopper adjusting actuator |
| CN201988695U (en) * | 2011-02-09 | 2011-09-28 | 河北钢铁股份有限公司邯郸分公司 | Tundish stopper-connector of billet continuous casting machine |
| CN102826748A (en) * | 2012-08-31 | 2012-12-19 | 朱兴发 | Electromagnetic induction slag smelting furnace meeting requirement on mineral wool production with short process and production method thereof |
| CN202655619U (en) * | 2012-06-05 | 2013-01-09 | 宁国市宏新电炉厂 | Casting stopper mechanism of bottom-casting medium frequency holding furnace |
| CN202684068U (en) * | 2012-06-29 | 2013-01-23 | 北京秉航科技有限公司 | Stopper guiding device of tundish |
| CN202770246U (en) * | 2012-08-31 | 2013-03-06 | 朱兴发 | Electric pole fluctuation and rotation stirring device of electro-magnetic sensing slag smelter |
| CN202992094U (en) * | 2012-12-28 | 2013-06-12 | 浙江工贸职业技术学院 | Gear drive lifting device |
| CN203550601U (en) * | 2013-07-26 | 2014-04-16 | 朱兴发 | Electro-magnetic induction slag smelting furnace bottom flow type vortex-preventing central stopper rod water gap lifting mechanism |
-
2013
- 2013-07-26 CN CN201310318636.6A patent/CN103398586B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228725A (en) * | 1996-07-02 | 1999-09-15 | 福塞科国际有限公司 | Stopper rod |
| US5948351A (en) * | 1996-12-27 | 1999-09-07 | Shouzui Yasui | Outlet device for a melting crucible |
| CN201735786U (en) * | 2010-08-26 | 2011-02-09 | 西安秦翔科技有限责任公司 | Leading screw-motor servo automatic control stopper adjusting actuator |
| CN201988695U (en) * | 2011-02-09 | 2011-09-28 | 河北钢铁股份有限公司邯郸分公司 | Tundish stopper-connector of billet continuous casting machine |
| CN202655619U (en) * | 2012-06-05 | 2013-01-09 | 宁国市宏新电炉厂 | Casting stopper mechanism of bottom-casting medium frequency holding furnace |
| CN202684068U (en) * | 2012-06-29 | 2013-01-23 | 北京秉航科技有限公司 | Stopper guiding device of tundish |
| CN102826748A (en) * | 2012-08-31 | 2012-12-19 | 朱兴发 | Electromagnetic induction slag smelting furnace meeting requirement on mineral wool production with short process and production method thereof |
| CN202770246U (en) * | 2012-08-31 | 2013-03-06 | 朱兴发 | Electric pole fluctuation and rotation stirring device of electro-magnetic sensing slag smelter |
| CN202992094U (en) * | 2012-12-28 | 2013-06-12 | 浙江工贸职业技术学院 | Gear drive lifting device |
| CN203550601U (en) * | 2013-07-26 | 2014-04-16 | 朱兴发 | Electro-magnetic induction slag smelting furnace bottom flow type vortex-preventing central stopper rod water gap lifting mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112266164A (en) * | 2020-09-29 | 2021-01-26 | 西安建筑科技大学 | Device and method for preparing mineral wool fibers |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103398586B (en) | 2014-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102433450B (en) | Oxygen-enriched side-blown reduction molten pool smelting furnace and method for smelting tin by using tin-enriched complex material in smelting furnace | |
| CN105177314B (en) | A kind of bath smelting of material containing antimony oxide produces the device of needle antimony | |
| CN109913662A (en) | The method for improving high-titanium blast furnace slag carbonization electric furnace liner service life | |
| CN103353232B (en) | Left wheel popup box type porous pull-down plug graphite water gap device of electromagnetic slag smelter | |
| CN203550601U (en) | Electro-magnetic induction slag smelting furnace bottom flow type vortex-preventing central stopper rod water gap lifting mechanism | |
| CN103834752B (en) | Thermal-state slag online modification device | |
| CN203478998U (en) | Underflow type anti-swirl central stopper rod nozzle for electro-magnetic induction slag smelting furnace | |
| CN202770212U (en) | Revolving furnace cover of electromagnetic induction slag smelting furnace meeting short process production of mineral wool | |
| CN203550604U (en) | Electro-magnetic induction slag smelting furnace bottom flow type flow-controllable electric heating graphite water gap device | |
| CN103398586B (en) | Underflow-type anti-vortex central stopper and nozzle lifting mechanism of electromagnetic induction slag smelter | |
| CN203478987U (en) | Suspended driven rotating device for furnace lid of electro-magnetic induction slag smelting furnace | |
| CN204461095U (en) | The three hole even distribution type head pieces that high-temperature liquid state slag flow is controlled | |
| CN103353234B (en) | Bottom flowing type coaxial electric heating core graphite water gap device of electromagnetic induction slag smelting furnace | |
| CN104232826B (en) | With method and the equipment thereof of Low-grade and hard-to-separate iron ore ironmaking | |
| CN203478985U (en) | Dynamic sealing device for suspended driven rotating furnace lid of electro-magnetic induction slag smelting furnace | |
| CN203478999U (en) | Left-wheel elastic box type porous pull-down plug graphite nozzle device of electromagnetic slag smelting furnace | |
| CN203479000U (en) | Sizing and inlaid conical graphite nozzle device for electro-magnetic induction slag smelting furnace | |
| CN203479002U (en) | Underflow type electro-magnetic induction graphite pipe launder for electro-magnetic induction slag smelting furnace | |
| CN203479012U (en) | Underflow type coaxial electric heating core graphite nozzle device for electro-magnetic induction slag smelting furnace | |
| CN102826748B (en) | Electromagnetic induction slag smelting furnace meeting requirement on mineral wool production with short process and production method thereof | |
| CN203479013U (en) | Structure for burying heater electrodes into electro-magnetic induction slag smelting furnace for slag smelting | |
| CN210656993U (en) | Device for continuously producing molten iron | |
| CN202063976U (en) | Equipment for producing high manganese-silicon by low-grade ferromanganese ore | |
| CN203478986U (en) | Suspended driven rotating furnace lid of electro-magnetic induction slag smelting furnace | |
| CN203479003U (en) | Double-round-pipe nozzle adopting graphite material and having different electrical resistivity of electromagnetic-induction slag smelting furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |