CN102829644B - Electrode lifting and rotary stirring device in electromagnetic-induction mineral slag smelting furnace - Google Patents
Electrode lifting and rotary stirring device in electromagnetic-induction mineral slag smelting furnace Download PDFInfo
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- CN102829644B CN102829644B CN201210317884.4A CN201210317884A CN102829644B CN 102829644 B CN102829644 B CN 102829644B CN 201210317884 A CN201210317884 A CN 201210317884A CN 102829644 B CN102829644 B CN 102829644B
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Abstract
The invention relates to an electrode lifting and rotary stirring device in electromagnetic-induction mineral slag smelting furnace. A plurality of induction heating electrodes are fixed on an electrode fixing plate; the electrode fixing plate is fixed on the outer circle of an electrode rotary support, wherein the outer circle of the electrode rotary support is provided with a gear; the inner circle of the electrode rotary support is fixed on the arm of the cover of the furnace; two ends of a ball screw are respectively fixed on an electrode lifting and fixing column through bearings with bases; the but of the ball screw is fixed on the arm of the cover of the furnace; and a lifting arm is sleeved on the electrode lifting and fixing column through eight front and rear rolling wheels. The electrode lifting and rotary stirring device is simple in structure and reasonable in design, ensures that the electromagnetic-induction mineral slag smelting furnace can be used for the shortened process of producing mineral wool and effectively solves the problems in the prior art that the hot blast furnace slag is difficult to increase temperature and temper so that the thermal efficiency and the short-process production flexibility of the smelting furnace are improved, the production efficiency is improved, the energy consumption is reduced by 40% and the product cost is lowered by 15%.
Description
Technical field
What the present invention relates to is a kind of in order to meet rise fall of electrodes and the revolution agitating device in the electromagnetic induction slag smelting furnace of short flow process slag wool production.Belong to electromagnetic induction slag smelting furnace slag wool production technical field.
Background technology
Steel industry is faced with opportunities and challenges equally as the main force in process of industrialization.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 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 are used titanomagnetite ironmaking in some areas, discharge 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.More than 2,000 ten thousand tons of China's annual discharges at present.Slag is thrown meeting land occupation aside, waste resource, contaminated environment.Within 1589, Germany start to utilize blast furnace slag.After mid-term in 20th century, blast furnace slag comprehensive utilization develops rapidly.Many countries such as the current U.S., Britain, Canada, France, the Federal Republic of Germany, Sweden, Belgium have all accomplished deslagging then, 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 while smelting the pig iron, when furnace temperature reaches 1400-1600 ℃, furnace charge melting, the gangue in ore, the ash content in coke and cosolvent and other can not enter impurity in the pig iron and form and take silicate and aluminate and float over the slag above molten iron as main.In blast-furnace cinder, main chemical composition is SiO
2, Al
2o
3, CaO, MgO, MnO, FeO, S etc.In addition, some slag also contains micro-TiO
2, V
2o
5, Na
2o, BaO, P
2o
5, Cr
2o
3deng.CaO in blast-furnace cinder, SiO
2, Al
2o
3account for the more than 90% of weight.
Slag that mineral wool is jetted very thin with compressed air or high steam stream, can produce mineral wool, and the method for operating mine slag wool has two kinds of blowing process and centrifugal process.Raw material flows out after melt in furnace, with steam or compressed air spraying, becomes the method for mineral wool to be called blowing process.Raw material drops on rotating disk after melt in furnace, and the method for making mineral wool with centrifugal force is called centrifugal process.Directly winding-up blast furnace cinder, though technique is simple, invest less, slag wool difficult quality guarantee.
Summary of the invention
The present invention proposes is a kind of in order to meet rise fall of electrodes and the revolution agitating device in the electromagnetic induction slag smelting furnace of short flow process slag wool production, its object is intended to make electromagnetic induction slag smelting furnace for short flow process slag wool production technique, can effectively solve the existing hot blast furnace slag of the prior art modified difficulty that heats up, thereby improve the thermal efficiency of smelting furnace and the flexibility that short flow process is produced, enhance productivity, reduce energy consumption 40%, product cost can reduce by 15%.
Technical solution of the present invention: it is characterized in that comprising ball screw, rise fall of electrodes vertical columns, rise fall of electrodes reducing motor, lifting arm, rotary decelerating motor, electrode revolution support and electrode fixed head; Wherein many eddy-current heating electrodes are fixed on electrode fixed head, and electrode fixed head is fixed on the band gear outer ring of electrode revolution support, and the inner ring that electrode revolution is supported is fixed on bell arm; The screw mandrel two ends of ball screw, by rolling bearing units, are fixed on rise fall of electrodes vertical columns respectively, and the nut of ball screw is fixed on lifting arm; Lifting arm, by eight of front and back roller, is enclosed within on rise fall of electrodes vertical columns, and rise fall of electrodes reducing motor connects ball screw, and ball screw connects lifting arm by nut, and lifting arm, rotary decelerating motor, electrode revolution are supported and electrode fixed head serial connection; During work, after the energising of rise fall of electrodes reducing motor, by driving the rotation of ball screw screw mandrel, and then by the nut of ball screw, drive lifting arm, rotary decelerating motor, electrode revolution support and electrode fixed head to do the elevating movement along rise fall of electrodes vertical columns.
Advantage of the present invention: rise fall of electrodes and revolution agitating device have simple in structure, reasonable in design: make electromagnetic induction slag smelting furnace for short flow process slag wool production technique, can effectively solve the existing hot blast furnace slag of the prior art modified difficulty that heats up, thereby improve the thermal efficiency of smelting furnace and the flexibility that short flow process is produced, enhance productivity, reduce energy consumption 40%, product cost can reduce by 15%.
Accompanying drawing explanation
Accompanying drawing 1 is that the structural representation of electromagnetic induction slag smelting furnace is always schemed.
Accompanying drawing 2 is vehicle structure schematic diagrames of electromagnetic induction slag smelting furnace.
Accompanying drawing 3 is electromagnetic induction furnace construction schematic diagrames of electromagnetic induction slag smelting furnace.
Accompanying drawing 4 is rotation bell structural representations of electromagnetic induction slag smelting furnace.
Accompanying drawing 5 is rise fall of electrodes and revolution agitating device structural representations of electromagnetic induction slag smelting furnace.
In figure 1 is dolly, the 2nd, electromagnetic induction smelting furnace, the 3rd, rotation bell, the 4th, rise fall of electrodes and revolution agitating device, the 5th, many eddy-current heating electrodes, the 6th, wheel, the 7th, little car body, the 8th, decelerator, the 9th, brake, the 10th, motor, the 11st, converter nose, the 12nd, oil cylinder verts, the 13rd, induction coil, the 14th, furnace shell, the 15th, grate, the 16th, hoist cylinder, the 17th, column, the 18th, revolution is supported, the 19th, reducing motor, the 20th, base, the 21st, bell, the 22nd, bell arm, the 23rd, ball screw, the 24th, rise fall of electrodes vertical columns, the 25th, rise fall of electrodes reducing motor, the 26th, lifting arm, the 27th, rotary decelerating motor, the 28th, electrode revolution is supported, the 29th, electrode fixed head.
The specific embodiment
Contrast accompanying drawing 5, rise fall of electrodes and revolution agitating device, its structure comprises ball screw 23, rise fall of electrodes vertical columns 24, rise fall of electrodes reducing motor 25, lifting arm 26, rotary decelerating motor 27, electrode revolution support 28 and electrode fixed head 29; Wherein many eddy-current heating electrodes are fixed on electrode fixed head 29, and electrode fixed head 29 is fixed on the band gear outer ring of electrode revolution support 28, and the inner ring of electrode revolution support 28 is fixed on bell arm; The screw mandrel two ends of ball screw 23, by rolling bearing units, are fixed on rise fall of electrodes vertical columns 24 respectively, and the nut of ball screw 23 is fixed on lifting arm 26; Lifting arm 26 is by eight of front and back roller, be enclosed within on rise fall of electrodes vertical columns 24, rise fall of electrodes reducing motor 25 connects ball screw 23, and ball screw 23 connects lifting arm 26 by nut, lifting arm 26, rotary decelerating motor 27, electrode revolution support 28 and electrode fixed head 29 serial connections; During work, after 25 energisings of rise fall of electrodes reducing motor, by driving the rotation of ball screw 23 screw mandrels, and then by the nut of ball screw 23, the elevating movement that drives lifting arm 26, rotary decelerating motor 27, electrode revolution support 28 and electrode fixed head 29 to do along rise fall of electrodes vertical columns 24.
Contrast accompanying drawing 1, electromagnetic induction slag smelting furnace, its structure comprises dolly 1, electromagnetic induction smelting furnace 2, rotation bell 3, rise fall of electrodes and revolution agitating device 4 and Duo Gen eddy-current heating electrode 5; Wherein electromagnetic induction smelting furnace 2 is used screw to be fixed on dolly 1, on 3 pre-embedded steel slabs that are fixed on ground foundation of rotation bell, rise fall of electrodes and revolution agitating device 4 use screw to be fixed on rotation bell 3, can be with 3 rotations of rotation bell, eddy-current heating electrode 5 is fixed on rise fall of electrodes and revolution agitating device 4, therefore, rise fall of electrodes and revolution agitating device 4 rotate with rotation bell 3 jointly with eddy-current heating electrode 5; During work, the motor energising on dolly 1, slows down by reductor, and power is passed to line shaft, and line shaft drives two driving wheels to roll in orbit, to meet electromagnetic induction smelting furnace 2 the moving horizontally between each station being fixed thereon; Be fixed on after the reducing motor energising on rotation bell 3 bases, by driving, turn round and support outer ring gear, drive rotation bell 3, be fixed on rise fall of electrodes and revolution agitating device 4 and 5 revolutions of eddy-current heating electrode on bell; Be fixed on after the reducing motor energising on rise fall of electrodes and revolution agitating device 4, the rotation of driving ball screw, and then by being fixed on the ball screw nut on rise fall of electrodes and revolution agitating device 4 arms, drive rise fall of electrodes and the 4 arm liftings of revolution agitating device, finally complete the lifting of eddy-current heating electrode 5; Be fixed on after the reducing motor energising on rise fall of electrodes and revolution agitating device 4 arms, by driving, turn round and support outer ring gear, drive the fixedly fixed head of eddy-current heating electrode 5, realize the Stirring action of eddy-current heating electrode 5, many eddy-current heating electrodes 5 are arranged on rise fall of electrodes and revolution agitating device 4.
Contrast accompanying drawing 2, dolly, its structure comprises wheel 6, dolly body 7, decelerator 8, brake 9, motor 10; Wherein four wheels 6 are respectively fixed on dolly body 7 by two rolling bearing units, and motor 10 is given one group of two driving wheel in 6, four wheels 6 of four wheels by decelerator 8 by power transmission, drive dolly body 7 to move on guide rail, 8 braking actions of decelerator; During work, the energising of motor on dolly, the connection of slowing down with shaft coupling by reductor, passes to line shaft by power, line shaft drives two driving wheels to roll in orbit, finally completes and meets electromagnetic induction smelting furnace the moving horizontally between each station being fixed thereon.
Contrast accompanying drawing 3, electromagnetic induction smelting furnace, its structure comprises converter nose 11, the oil cylinder 12 that verts, induction coil 13, furnace shell 14 and grate 15; Wherein induction coil 13 is fixed on furnace shell 14 by nut, 14 of furnace shells fix on grate 15 by hinges fixing, vert one end of oil cylinder 12 fixes on grate 15 by hinges fixing, the other end of oil cylinder 12 of verting also fixes on furnace shell 14 by hinges fixing, oil cylinder 12 piston rods that vert connect furnace shell 14, during work, stretching of oil cylinder 12 piston rods that vert, drives verting of furnace shell 14; After adding furnace charge, induction coil 13 energising water flowings, start melting, treat that melting finishes, eddy-current heating electrode rises and departs from rotation bell, after the rotation of rotation bell is left, oil cylinder 12 piston rods that vert stretch out, and drive furnace shell 14, centered by grate 15 and furnace shell 14 hinge pin, overturn, the furnace charge that finally makes melting complete, waters out by converter nose 11.
Contrast accompanying drawing 4, rotation bell, its structure comprises hoist cylinder 16, column 17, revolution support 18, reducing motor 19, base 20, bell 21 and bell arm 22, and its central post 17 supports 18 by revolution and is fixed on base 20, and bell 21 is fixed on column 17 by bell arm 22; Reducing motor 19 supports 18 by revolution and joins with bell 21, and during work, reducing motor 19 supports 18 by revolution and drives bell 21 rotations; The steel cylinder of hoist cylinder 16 is fixed on column 17, and the piston rod of hoist cylinder 16 is fixing with bell arm 22; During work, be fixed on after the reducing motor energising on rotation bell 3 bases, by driving, turn round and support 18 outer ring gear drive Rotary cloumns 17, hoist cylinder 16 and bell 21 realization revolutions; The piston rod of hoist cylinder 16 is flexible, drives bell arm 22 and bell 21 to realize lifting.
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.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.
The method of short flow process slag wool production, its technique comprises:
1) by blast furnace warm sludge directly or transhipment warm sludge hired car pack electromagnetic induction smelting furnace into, with warm sludge, pack energy-saving effect into remarkable, warm sludge temperature is spent in 1400 degree-1500, can cool to 1100-1200 degree after packing Melting and adjustment warm sludge smelting furnace into; 2) electromagnetic induction by Melting and adjustment warm sludge smelting furnace is warmed up to 1450-1550 degree; 3) in 80%～90% blast furnace warm sludge, add the quartz account for blast furnace warm sludge weight 10%～20% and carry out the modified 1450-1550 of being warmed up to degree, the object that adds quartz is the grade of modified raising slag wool, and blast furnace slag wool is become to the mineral wool that quality is high;
The described modified melted gangue that is warmed up to 1450-1550 degree, to pack hot slag stream into slag constant temperature holding furnace by chute, slag constant temperature holding furnace has the melt cinder stem bar of two controllable flow rates, and the slag that warm sludge stem bar flows out flows to down to be made together cotton equipment and make mineral wool.
Operating process: beginning → dolly 1 is with electromagnetic induction smelting furnace 2, move to station before blast furnace → add warm sludge → dolly 1 with electromagnetic induction smelting furnace 2, after moving back to melting station → dolly 1 and putting in place, rotation bell 3 rotates to fire door top, and decline cover → rise fall of electrodes and revolution agitating device 4 dynamics answer heating electrode 5 to decline, insert in melt cinder → prepare melting → serve variable-frequency power sources, slag starts to heat in modified → fusion process, rise fall of electrodes and revolution agitating device 4 drive heating electrode 5 revolutions, carrying out technique stirring → melting finishes, rise fall of electrodes and revolution agitating device 4 dynamics answer heating electrode 5 to rise, from melt cinder, extracting → rotate bell 3 rises and rotates, being turned back to cast dodges position → electromagnetic induction smelting furnace 2 and verts, melted slag stream is passed through to chute, flow into slag constant temperature smelting furnace, for subordinate's operation prepare → so, electromagnetic induction slag smelting furnace completes a do action.
Large capacity warm sludge smelting furnace (15t-25t warm sludge); The temperature that the blast furnace slag of cooling is warmed up to technological requirement also can more easily be adjusted the chemical composition of slag; By heating up, modified good warm sludge dress people constant temperature smelting furnace flows for subordinate's operation provides the slag of steady temperature, flow-controllable; Long-life furnace lining; The anti-oxidation heater of ultra high power.Graphite electrode diameter 200mm-1000mm(comprise common power, high power anti-oxidation, etc. graphite electrode and graphite induction heating product, graphite electrode is comprised of 3-12 root.Variable-frequency power sources, 1000-20000kW.By stove, with car, intensification smelting furnace is transported to blast furnace, blast furnace warm sludge is directly filled to people's smelting furnace, then intensification smelting furnace is returned to mineral wool and prepare workshop.Smelting furnace adopts variable-frequency power sources, can utilize the high-temperature fusion slag of the generations such as high-temperature metal rod in smelting furnace, graphite crucible, graphite hollow, real core graphite rod.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, adjust slag composition warm sludge is done to intensification modifier treatment, by stream grain, flow into slag constant temperature smelting furnace afterwards, and flow for subordinate's operation provides the slag of steady temperature, flow-controllable.
Claims (1)
1. the rise fall of electrodes in short flow process slag wool production electromagnetic induction slag smelting furnace and revolution agitating device, is characterized in that comprising ball screw, rise fall of electrodes vertical columns, rise fall of electrodes reducing motor, lifting arm, rotary decelerating motor, electrode revolution support and electrode fixed head; Wherein many eddy-current heating electrodes are fixed on electrode fixed head, and electrode fixed head is fixed on the band gear outer ring of electrode revolution support, and the inner ring that electrode revolution is supported is fixed on bell arm; The screw mandrel two ends of ball screw, by rolling bearing units, are fixed on rise fall of electrodes vertical columns respectively, and the nut of ball screw is fixed on lifting arm; Lifting arm, by eight of front and back roller, is enclosed within on rise fall of electrodes vertical columns, and rise fall of electrodes reducing motor connects ball screw, and ball screw connects lifting arm by nut, and lifting arm, rotary decelerating motor, electrode revolution are supported and electrode fixed head serial connection; During work, after the energising of rise fall of electrodes reducing motor, by driving the screw mandrel of ball screw to rotate, and then by the nut of ball screw, drive lifting arm, rotary decelerating motor, electrode revolution support and electrode fixed head to do the elevating movement along rise fall of electrodes vertical columns.
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| CN1202272C (en) * | 2003-03-11 | 2005-05-18 | 朱兴发 | Apparatus for producing low-carbon ferromanganese iron using manganese-rich slay |
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