CN203478999U - Left-wheel elastic box type porous pull-down plug graphite nozzle device of electromagnetic slag smelting furnace - Google Patents
Left-wheel elastic box type porous pull-down plug graphite nozzle device of electromagnetic slag smelting furnace Download PDFInfo
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- CN203478999U CN203478999U CN201320450147.1U CN201320450147U CN203478999U CN 203478999 U CN203478999 U CN 203478999U CN 201320450147 U CN201320450147 U CN 201320450147U CN 203478999 U CN203478999 U CN 203478999U
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- slag
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Abstract
The utility model discloses a left-wheel elastic box type porous pull-down plug graphite nozzle device of an electromagnetic slag smelting furnace. The device structurally comprises a moving arm, a plug pulling arm, a plug pulling cylinder, a pin shaft, a fixed bracket, a rotating shaft, a top plug cylinder, a graphite nozzle, a graphite plug and a porous cone. The left-wheel elastic box type porous pull-down plug graphite nozzle device of the electromagnetic slag smelting furnace has the advantages as follows: the problems of high-temperature slag open flow condensation blockage and constant-temperature flow control of bottom flow of an electromagnetic-induction slag smelting furnace are solved; process technological requirements of rock wool production are met, and bottleneck of high-quality rock wool production is broken through; by means of a design of a bottom deslagging nozzle, the accurate flow is ensured, switching on and off can be performed randomly, and melt is not wasted; the energy consumption is low, the heat efficiency is high, the waste residue amount is small, the fiber forming rate is high, and the cost advantage is obvious; the smelting furnace is excellent in temperature rising, temperature adjustment, heat preservation and tempering performance and large in loading capacity, so that a good base is established for scale production; and the nozzle device has the characteristics of controllable high-temperature liquid slag flow, smoothness, absence of blockage, safety, reliability, convenience in use and high efficiency.
Description
Technical field
The utility model proposes the drop-down plug graphite of a kind of electromagnetic induction slag smelting furnace revolver magazine formula porous matter spout device, 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 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.China approximately discharges more than 2,000 ten thousand tons at present every year.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.The Japan utilization rate Wei85%， Soviet Union in 1980 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.
The slag stream that mineral wool is jetted very thin with compressed air or high steam, 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, high-quality mineral wool can be obtained.Many countries are all at 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, 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.
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, pack 3 operations.
Conventionally the technological process of blowing process operating mine slag wool as shown in Figure 1.
Mineral wool melting equipment is comprised of smelting furnace (furnace cupola or combustion gas tank furnace etc.), feeder, four roller centrifuges etc. conventionally.
Conventionally the technique of operating mine slag wool is dry slag to be melt into its method of liquid slag as follows:
1, pulverized fuel and raw material are burnt in 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 burning gases highest temperature zone.Raw material proportioning is: every 100 parts of fine coal, and 50-300 parts of mineral wool raw materials, mineral wool raw materials has also been added 3-9% fine-powdered acidity in addition.
2, coke smelting furnace (furnace cupola).
3, combustion gas tank furnace, tank furnace refractory material laying, is entered right gas blowout in pond, to melt slag charge 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 to people's electromagnetic induction slag smelting furnace (15t-20t slag), also have 10%～20% dolomite, fluorite or other are if the ore charges such as common brick head, cobble are as additive, heating to 1550 degree left and right adjusts slag composition and in skull melting furnace, guarantees melt constant temperature, for subordinate's operation provides the slag of high-temperature liquid state flow-controllable, flowing, is the key technology of producing high-quality mineral wool.
The slag stream of controlled constant flow is the key that subordinate's blowing process and centrifugal process are produced high-quality mineral wool, and holding furnace bottom is thicker, has the factors such as a long section mouth of a river temperature is lower, and melted gangue meeting blocking channel, more can not control the flow that high temperature slag flows.
High-temperature slag will coagulate pasty state, mobility extreme difference cooling to 1300 about degree.
Summary of the invention
The utility model proposes the drop-down plug graphite of a kind of electromagnetic induction slag smelting furnace revolver magazine formula porous matter spout device, its object is intended to solve the difficult problem that electromagnetic induction slag smelting furnace underflow high-temperature slag is opened solidifying stifled, the constant temperature flow-control of stream.Meet the technology requirement that rock wool produces, for producing high-quality rock wool, get through bottleneck.
Of the present utility model
technical solution: the drop-down plug graphite of electromagnetic induction slag smelting furnace revolver magazine formula porous matter spout device, is characterized in that comprising transfer arm, the arm of drawing the cork, the cylinder of drawing the cork, bearing pin, fixed mount, gyroaxis, top piston cylinder and the graphite matter mouth of a river, graphite matter stopper and Round Porous cone; Wherein the graphite matter mouth of a river is fixed in furnace bottom lining, graphite matter stopper is filled in the graphite matter mouth of a river, top piston cylinder is connected with graphite matter stopper, top piston cylinder is fixed on transfer arm, and transfer arm is enclosed within draws the cork on arm, can move around, the arm of drawing the cork is fixed on gyroaxis by bearing pin, bearing pin is in vertical plane gyration, and gyroaxis is fixed on fixed mount, and can be in horizontal plane gyration; Round Porous cone is embedded in the furnace bottom of resistance to material sizing seat; During work, when in-furnace slag reaches water outlet requirement, top piston cylinder stretches out, by the jelly bursting of slag bottom, the cylinders retract of drawing the cork, drives draw the cork arm, transfer arm and top piston cylinder, graphite matter stopper is extracted, slag flows out furnace bottom, and after a slag liquid has flowed, the cylinder of drawing the cork stretches out, by mobile transfer arm, adjust top piston cylinder and aim at next graphite matter stopper, and be attached thereto and connect, prepare the next one circulation of drawing the cork.
Of the present utility model
advantage:
1, solution electromagnetic induction slag smelting furnace underflow high-temperature slag is opened to flow and is coagulated a difficult problem stifled, constant temperature flow-control.Meet the technology requirement that rock wool produces, for producing high-quality rock wool, get through bottleneck; 2, the end, spills the peculiar design of pulp water mouth, guarantees that flow is accurate, and arbitrarily switch, does not waste melt; 3, energy consumption is low, and the thermal efficiency is high, and waste residue amount is little, and fibroblast rate is expensive with the obvious advantage.
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.
It is controlled that this spout device has high-temperature liquid state slag flow, smooth without stifled, safe and reliable, easy to use, efficient feature.
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 drop-down plug graphite of a kind of electromagnetic induction slag smelting furnace revolver magazine formula porous matter spout device.
Fig. 4 is the plan structure schematic diagram of the drop-down plug graphite of a kind of electromagnetic induction slag smelting furnace revolver magazine formula porous matter spout device.
In figure 1 is transfer arm, the 2nd, the arm of drawing the cork, the 3rd, the cylinder of drawing the cork, the 4th, bearing pin, the 5th, fixed mount, the 6th, gyroaxis, the 7th, top piston cylinder, the 8th, the graphite matter mouth of a river, the 9th, graphite matter stopper.
The specific embodiment
Contrast accompanying drawing 3,4, the drop-down plug graphite of electromagnetic induction slag smelting furnace revolver magazine formula porous matter spout device, its structure comprises transfer arm 1, the arm 2 of drawing the cork, the cylinder 3 of drawing the cork, bearing pin 4, fixed mount 5, gyroaxis 6, top piston cylinder 7 and the graphite matter mouth of a river 8, graphite matter stopper 9; Wherein the graphite matter mouth of a river 8 is fixed in furnace bottom lining, graphite matter stopper 9 is filled in the graphite matter mouth of a river 8, top piston cylinder 7 is connected with graphite matter stopper 9, and 7 of top piston cylinders are fixed on transfer arm 1, and transfer arm 1 is enclosed within draws the cork on arm 2, can move around, draw the cork arm 2 by bearing pin 4, be fixed on gyroaxis 6, can be around bearing pin 4 in vertical plane gyration, gyroaxis 6 is fixed on fixed mount 5, and can be in horizontal plane gyration.
The course of work: in-furnace slag reaches after water outlet requirement, top piston cylinder 7 stretches out, the slag bottom jelly bursting → cylinder 3 of drawing the cork is retracted, drive draw the cork arm 2, transfer arm 1 and top piston cylinder 7, graphite matter stopper 9 is extracted, and furnace bottom → after a slag liquid has flowed, the cylinder 3 of drawing the cork stretches out → passes through mobile transfer arm 1 in slag outflow, adjust top piston cylinder 7 and aim at next graphite matter stopper 9, and be attached thereto and connect → prepare the next one circulation of drawing the cork.
The drop-down plug graphite of electromagnetic induction slag smelting furnace revolver magazine formula porous matter spout device, length 400mm, is arranged in the furnace base of resistance to material.Bore (10mm-30mm) in porous, the about 50-80mm of stopper hole depth, the about 60mm macropore in perforate footpath below hole, avoids flowing slag dross and stops up.
It includes the uniform porous of cone that a graphite material forms this spout device, and cone is embedded in the furnace bottom of resistance to material sizing seat, just transposing.In cone porous, all inlay the graphite matter stopper under can be conveniently, hold-down nut is installed in stopper, be convenient to additional pull-rod and fix.The rotating disk of a single hole of bottom close-fitting of cone, each drop-down stopper melt by getting off from above slowly becomes slag stream, suitable for reading with sizing mouth control flow.Draw a chock plug to use once, then the rotating disk of single hole forwards second hole to, takes turns successively the porous of having converted, and changes the Round Porous cone that next standby graphite material forms.Original practicality goes round and begins again.
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, by blast furnace warm sludge directly or transhipment warm sludge hired car pack Melting and adjustment warm sludge smelting furnace into, (it is remarkable that warm sludge packs energy-saving effect into), blast furnace warm sludge approximately 1500 degree left and right, after packing Melting and adjustment warm sludge smelting furnace into, 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 being modifiedly warmed up to about 1500 degree left and right (object that adds quartz being the grade of modified raising slag wool again, 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, pack hot slag stream into slag constant temperature holding furnace, 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.(having two kinds of cotton method blowing processes of system and centrifugal process).
The composition of blast furnace slag comprises chemical composition and mineral composition.
In chemical composition blast furnace slag, conventionally contain 15 kinds of above chemical compositions.The project of blast furnace slag complete analysis is SiO
2, Al
2o
3, CaO, MgO, MnO, Fe
2o
3, S.Some special slags are also analyzed TiO
2, V
2o
5, P
2o
5, Na
2o, BaO, Cr
2o
3, Ni
2o
3deng.In all these chemical compositions, CaO, SiO
2, Al
2o
3, tetra-kinds of compositions of MgO are main, they account for 95% of gross weight.SiO
2and Al
2o
3from the gangue in ore and the ash content in coke, CaO and MgO are mainly from flux, and blast furnace slag is exactly mainly silicate and the aluminate being comprised of these four kinds of oxides.
Claims (3)
1. the drop-down plug graphite of electromagnetic induction slag smelting furnace revolver magazine formula porous matter spout device, is characterized in that comprising transfer arm, the arm of drawing the cork, the cylinder of drawing the cork, bearing pin, fixed mount, gyroaxis, top piston cylinder and the graphite matter mouth of a river, graphite matter stopper and Round Porous cone; Wherein the graphite matter mouth of a river is fixed in furnace bottom lining, and graphite matter stopper is filled in the graphite matter mouth of a river, and top piston cylinder is connected with graphite matter stopper, top piston cylinder is fixed on transfer arm, transfer arm is enclosed within draws the cork on arm, and the arm of drawing the cork is fixed on gyroaxis by bearing pin, and gyroaxis is fixed on fixed mount; Round Porous cone is embedded in the furnace bottom of resistance to material sizing seat.
2. the drop-down plug graphite of electromagnetic induction slag smelting furnace revolver magazine formula porous according to claim 1 matter spout device, is characterized in that uniform porous in described Round Porous cone, the rotating disk of a single hole of bottom close-fitting of Round Porous cone.
3. the drop-down plug graphite of electromagnetic induction slag smelting furnace revolver magazine formula porous according to claim 2 matter spout device, the interior bore that it is characterized in that porous on described cone is 10mm-30mm, stopper hole depth 50-80mm, the perforate footpath 60mm below hole, avoids flowing slag dross and stops up.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320450147.1U CN203478999U (en) | 2013-07-26 | 2013-07-26 | Left-wheel elastic box type porous pull-down plug graphite nozzle device of electromagnetic slag smelting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320450147.1U CN203478999U (en) | 2013-07-26 | 2013-07-26 | Left-wheel elastic box type porous pull-down plug graphite nozzle device of electromagnetic slag smelting furnace |
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| CN203478999U true CN203478999U (en) | 2014-03-12 |
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|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567428A (en) * | 2014-12-30 | 2015-04-29 | 朱兴发 | Flow-controllable orifice with three uniformly distributed holes for high-temperature liquid slag |
-
2013
- 2013-07-26 CN CN201320450147.1U patent/CN203478999U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567428A (en) * | 2014-12-30 | 2015-04-29 | 朱兴发 | Flow-controllable orifice with three uniformly distributed holes for high-temperature liquid slag |
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Granted publication date: 20140312 |