CN103353235A - Embedded slag type structure of heating element electrodes of electromagnetic induction slag smelting furnace - Google Patents
Embedded slag type structure of heating element electrodes of electromagnetic induction slag smelting furnace Download PDFInfo
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- CN103353235A CN103353235A CN2013103185679A CN201310318567A CN103353235A CN 103353235 A CN103353235 A CN 103353235A CN 2013103185679 A CN2013103185679 A CN 2013103185679A CN 201310318567 A CN201310318567 A CN 201310318567A CN 103353235 A CN103353235 A CN 103353235A
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Abstract
The invention relates to an embedded slag type structure of heating element electrodes of an electromagnetic induction slag smelting furnace. The embedded slag type structure of the heating element electrodes of the electromagnetic induction slag smelting furnace is characterized by comprising four graphite heating element electrodes, four fixing plates and sixteen fixing bolts, wherein the graphite heating element electrodes are inserted into a furnace bottom lining and are firmly fixed in the furnace bottom lining through the fixing plates and the fixing bolts. In the working process, an induction coil is electrified, the graphite heating element electrodes induce heat and enable slag to be melt, and due to the fact that the positions of the graphite heating element electrodes are located under the slag liquid level all the time in the whole course of heating and melting the slag, the graphite heating element electrodes are oxidized but are small in loss. The embedded slag type structure of the heating element electrodes of the electromagnetic induction slag smelting furnace has the advantages that the problems of oxidization and burning loss of the electromagnetic induction graphite electrodes are effectively solved; the electromagnetic induction slag smelting furnace is high in power factor, low in energy consumption, and high in temperature rise speed; the energy consumption is low, the heat efficiency is high, the waste slag amount is small, the fiber forming rate is high, and the cost advantage is obvious; the smelting furnace has the advantages of saving energy, lowering cost, and being short in flowing path, high in quality and efficient.
Description
Technical field
The present invention relates to be a kind of electromagnetic induction slag smelting furnace heater electrode imbed the molten slag type structure, belong 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 not only consumes a large amount of energy in its processing procedure, 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 claims 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.Different according to the grade of ore, 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 began 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 then deslagging 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 of discharging from blast furnace when smelting the pig iron, when furnace temperature reaches 1400-1600 ℃, furnace charge melting, the gangue in the ore, the ash content in the coke and cosolvent and other can not enter impurity in the pig iron and form take silicate and aluminate as the main slag that floats over above the molten iron.Main chemical composition is SiO2 in the blast-furnace cinder, 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, again blowing after the 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 behind melt in furnace, namely becomes the method for mineral wool to be called blowing process with steam or compressed air spraying.Raw material is dropping on behind the melt in furnace on the 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 such 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 mineral wool fiber.Raw meal ash or slag are spurted into the burning gases highest temperature zone.The raw material proportioning is: per 100 parts of fine coal, 50-300 parts of mineral wool raw materials are except in addition mineral wool raw materials has also been added 3-9% fine-powdered acidity.
2, coke smelting furnace (furnace cupola).
3, combustion gas tank furnace, the tank furnace refractory material laying is entered right gas blowout to melt slag charge in the pond by spray gun.
4, metal electrode arc-melting slag charge (small-sized).
The blast furnace warm sludge that accounts for 80%～90% is directly filled people's electromagnetic induction slag smelting furnace (7t/h), also have 10%～20% dolomite, fluorite or other such as ore charges such as common brick head, cobbles as additive, heat to and adjust slag composition about 1550 degree and guarantee that slag constant temperature provides the slag stream of constant flow rate for subordinate's operation.
Electromagnetic induction slag smelting furnace heater electrode is the crucial thermal source of electromagnetic induction slag smelting furnace melting melt.Centrifugal process is produced the crucial smelting furnace of high-quality rock wool, and the loss of effectively controlling electromagnetic induction heater electrode is the key that reduces operating cost, and the loss of heater graphite electrode mainly is the high-temperature oxydation scaling loss.It is the difficult problem that electric furnace reduces the graphite electrode loss.
Summary of the invention
What the present invention proposed a kind of electromagnetic induction slag smelting furnace heater electrode imbeds the molten slag type structure, and its purpose is intended to solve the high-temperature oxydation burning problems of electromagnetic induction slag smelting furnace heater electrode, effectively reduces the operating cost of asbestos product.
Of the present invention
Technical solution: electromagnetic induction slag smelting furnace heater electrode imbed the molten slag type structure, it is characterized in that comprising graphite matter heater electrode, fixed head, set bolt, wherein graphite matter heater electrode is inserted in the furnace bottom lining, and is securely fixed in the furnace bottom lining by fixed head, set bolt.
Described graphite matter heater electrode 1 has four;
Described fixed head 2 has four;
Described set bolt 3 has 16;
During work: graphite matter heater electrode 1 is inserted in furnace bottom lining → by fixed head 2 and set bolt 3, graphite matter heater electrode 1 is securely fixed in furnace bottom lining → induction coil energising → graphite matter heater electrode 1 induction heating → slag melts.Because graphite matter heater electrode 1 is in omnidistance heat fused slag process, its position is in below the slag liquid level always, therefore oxidized loss is little.
Of the present invention
Advantage: the oxidization burning loss problem that effectively solves the electromagnetic induction graphite electrode; Electromagnetic induction blast furnace slag smelting furnace power factor is high, and energy consumption is low, and programming rate is fast; 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; That this smelting furnace has is energy-conservation, fall basis, short flow process, high-quality and efficient characteristics.
Description of drawings
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 a kind of main TV structure schematic diagram of imbedding the molten slag type structure of electromagnetic induction slag smelting furnace heater electrode.
Fig. 4 is a kind of plan structure schematic diagram of imbedding the molten slag type structure of electromagnetic induction slag smelting furnace heater electrode.
Among the figure 1 is graphite matter heater electrode, the 2nd, fixed head, the 3rd, and set bolt, the 4th, burner hearth, the 5th,
Furnace lining, the 6th, the furnace bottom lining.
The specific embodiment
Contrast accompanying drawing 3,4, electromagnetic induction slag smelting furnace heater electrode imbed the molten slag type structure, comprise graphite matter heater electrode 1, fixed head 2, set bolt 3, wherein graphite matter heater electrode 1 is inserted in the furnace bottom lining, by fixed head 2, set bolt 3 graphite matter heater electrode 1 is securely fixed in the furnace bottom lining.
Described graphite matter heater electrode 1 has four;
Described fixed head 2 has four;
Described set bolt 3 has 16;
Its course of work: graphite matter heater electrode 1 is inserted in furnace bottom lining → by fixed head 2 and set bolt 3, graphite matter heater electrode 1 is securely fixed in furnace bottom lining → induction coil energising → graphite matter heater electrode 1 induction heating → slag melts.Because graphite matter heater electrode 1 is in omnidistance heat fused slag process, its position is in below the slag liquid level always, therefore oxidized loss is little.
As shown in Figure 2, the technique of short flow process slag wool production is 1) with the blast furnace warm sludge directly or the transhipment warm sludge hired car Melting and adjustment warm sludge smelting furnace of packing into; 2) smelting furnace adopts variable-frequency power sources, utilizes the special electromagnetic induction graphite electrode in the smelting furnace to produce the high-temperature fusion slag; 3) the blast furnace warm sludge is accounted for 80%～90%, also have 10%～20% dolomite, fluorite or other such as ore charges such as common brick head, cobbles, heat to about 1550 degree; 4) adjust slag composition warm sludge done intensification modifier treatment, 5) pass through the poor person who lives in exile's slag constant temperature smelting furnace of stream, and the slag stream of steady temperature, flow-controllable is provided for subordinate's operation.
Utilize at the bottom of the secondary of electromagnetic induction slag furnace bottom at the bottom of the temperature slag hearth, the characteristics that bottom low temperature and the electromagnetic induction magnetic line of force are weak, special electromagnetic induction graphite electrode is imbedded in the typing seat of anti-material of furnace bottom, make the long-time running of special electromagnetic induction graphite electrode in liquid slag, normal operating condition electromagnetic induction graphite electrode and air are isolated, effectively solve the oxidization burning loss problem of electromagnetic induction graphite electrode.Reduce operating cost with the obvious advantage.
Embodiment, 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;
Short flow process slag wool production comprises
1) be with 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 approximately about 1500 degree;
2) pack into and can cool to behind the Melting and adjustment warm sludge smelting furnace about about 1200 degree;
3) electromagnetic induction by Melting and adjustment warm sludge smelting furnace is warmed up to about about 1500 degree;
4) in 80%～90% blast furnace warm sludge, add again 10%～20% quartz etc. and carry out modified be warmed up to (purpose that adds quartz is the grade of modified raising slag wool, and the blast furnace slag wool is become the high mineral wool of quality) about about 1500 degree;
5) the modified melted gangue that is warmed up to about about 1500 degree, by chute with 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 into making together cotton equipment makes mineral wool (two kinds of cotton method blowing processes of existing system and centrifugal process are arranged) down.
The composition of blast furnace slag comprises chemical composition and mineral composition.
Usually contain the chemical composition more than 15 kinds in the chemical composition blast furnace slag.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, four kinds of compositions of MgO are main, and they account for 95% of gross weight.SiO2 and Al2O3 are from the gangue in the ore and the ash content in the coke, and CaO and MgO are mainly from flux, and blast furnace slag mainly is exactly silicate and the aluminate that is comprised of these four kinds of oxides.
Claims (1)
1. electromagnetic induction slag smelting furnace heater electrode imbeds the molten slag type structure, it is characterized in that comprising graphite matter heater electrode, fixed head, set bolt, wherein graphite matter heater electrode is inserted in the furnace bottom lining, and is securely fixed in the furnace bottom lining by fixed head, set bolt;
Described graphite matter heater electrode has four;
Described fixed head has four;
Described set bolt has 16;
During work: the induction coil energising, graphite matter heater electrode induction heating makes the slag fusing; Because graphite matter heater electrode is in omnidistance heat fused slag process, its position is in below the slag liquid level always, therefore oxidized but loss is little.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482514A (en) * | 2016-12-09 | 2017-03-08 | 永平县泰达废渣开发利用有限公司 | A kind of induction furnace based on electron beam gun melts silicon and plays furnace apparatus and technique |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1610377A (en) * | 1925-08-20 | 1926-12-14 | Pittsburgh Plate Glass Co | Apparatus for making glass |
| EP0269735A1 (en) * | 1986-05-29 | 1988-06-08 | Vsesojuzny Nauchno-Issledovatelsky Proektno-Konstruktorsky I Tekhnologichesky Inst. Elektrotermicheskogo Oborudovania Vniieto | Induction plasma furnace |
| US5142650A (en) * | 1989-11-14 | 1992-08-25 | Asahi Glass Company Ltd. | Bottom electrode for a direct current arc furnace |
| CN2150508Y (en) * | 1992-08-29 | 1993-12-22 | 冶金部鞍山热能研究院 | Cooper-steel composite water-cooling AC electric-arc furnace floor positive electrode |
| CN1293529A (en) * | 1999-10-18 | 2001-05-02 | 东和钢铁企业股份有限公司 | Bottom electrode structure of DC are furnace |
| CN2613123Y (en) * | 2003-04-03 | 2004-04-21 | 宝山钢铁股份有限公司 | DC arc hearth electrode |
| US20040131103A1 (en) * | 2003-01-06 | 2004-07-08 | Green Daniel K. | Precast one piece upper castable ring for induction furnaces |
| CN102478357A (en) * | 2010-11-29 | 2012-05-30 | 沈阳铝镁设计研究院有限公司 | Cathode fixing device |
| CN102575305A (en) * | 2009-10-08 | 2012-07-11 | 株式会社神户制钢所 | Molten metal producing device |
| CN202770189U (en) * | 2012-08-31 | 2013-03-06 | 朱兴发 | Electromagnetic induction smelting furnace in electromagnetic induction slag smelting furnace for short process mineral wool production |
| CN203479013U (en) * | 2013-07-26 | 2014-03-12 | 朱兴发 | Structure for burying heater electrodes into electro-magnetic induction slag smelting furnace for slag smelting |
-
2013
- 2013-07-26 CN CN2013103185679A patent/CN103353235A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1610377A (en) * | 1925-08-20 | 1926-12-14 | Pittsburgh Plate Glass Co | Apparatus for making glass |
| EP0269735A1 (en) * | 1986-05-29 | 1988-06-08 | Vsesojuzny Nauchno-Issledovatelsky Proektno-Konstruktorsky I Tekhnologichesky Inst. Elektrotermicheskogo Oborudovania Vniieto | Induction plasma furnace |
| US5142650A (en) * | 1989-11-14 | 1992-08-25 | Asahi Glass Company Ltd. | Bottom electrode for a direct current arc furnace |
| CN2150508Y (en) * | 1992-08-29 | 1993-12-22 | 冶金部鞍山热能研究院 | Cooper-steel composite water-cooling AC electric-arc furnace floor positive electrode |
| CN1293529A (en) * | 1999-10-18 | 2001-05-02 | 东和钢铁企业股份有限公司 | Bottom electrode structure of DC are furnace |
| US20040131103A1 (en) * | 2003-01-06 | 2004-07-08 | Green Daniel K. | Precast one piece upper castable ring for induction furnaces |
| CN2613123Y (en) * | 2003-04-03 | 2004-04-21 | 宝山钢铁股份有限公司 | DC arc hearth electrode |
| CN102575305A (en) * | 2009-10-08 | 2012-07-11 | 株式会社神户制钢所 | Molten metal producing device |
| CN102478357A (en) * | 2010-11-29 | 2012-05-30 | 沈阳铝镁设计研究院有限公司 | Cathode fixing device |
| CN202770189U (en) * | 2012-08-31 | 2013-03-06 | 朱兴发 | Electromagnetic induction smelting furnace in electromagnetic induction slag smelting furnace for short process mineral wool production |
| CN203479013U (en) * | 2013-07-26 | 2014-03-12 | 朱兴发 | Structure for burying heater electrodes into electro-magnetic induction slag smelting furnace for slag smelting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482514A (en) * | 2016-12-09 | 2017-03-08 | 永平县泰达废渣开发利用有限公司 | A kind of induction furnace based on electron beam gun melts silicon and plays furnace apparatus and technique |
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Application publication date: 20131016 |