CN102698634B - Device and method for homogenizing high-temperature melt - Google Patents
Device and method for homogenizing high-temperature melt Download PDFInfo
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- CN102698634B CN102698634B CN201210165579.8A CN201210165579A CN102698634B CN 102698634 B CN102698634 B CN 102698634B CN 201210165579 A CN201210165579 A CN 201210165579A CN 102698634 B CN102698634 B CN 102698634B
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Abstract
The invention provides a device and a method for homogenizing high-temperature melt and belongs to the technical field of melt homogenization. The device provided by the invention consists of three parts, namely a melting tank, a stirring system and a heating system. The detailed steps for homogenizing high-temperature melt carried out by the device provided by the invention are as follows: adding hot silicate slag and quenching-tempering material into the melting tank; after heating to melt the raw material, turning off the power supply; enabling the stirring part of the cooled stirring system to fall into the high-temperature melt, and finishing fall-rise-fall operating actions for stirring the melt in order, wherein the stirring process and the heating process are carried out alternatively; and under the condition that the test result of the samples shows that the composition uniformity and viscosity of the melt are suitable for the process conditions that the fiber is formed or the glass ceramics is prepared, opening a choke plug of the melting tank and making the melt flow out via the flow hole by the gravity of the melt to finish the homogenization process. The homogenizing device and the homogenizing method, provided by the invention, have the advantages of good homogenizing effect, good high-temperature strength and long service life of the stirring part.
Description
Technical field
The invention belongs to melt homogenization technical field, be specifically related to a kind of apparatus and method of high-temperature fusant homogenizing, these apparatus and method are for carrying out high-efficiency stirring mixing to silicate melt and solid-state adjusting material.
Background technology
The homogenizing of high-temperature fusant is the important step in some industrial process always, as metallurgy, and glass production, mineral wool processing etc., want to obtain high-quality above-mentioned industrial products, must be in the molten states of high temperature, make each uniform component distribution.The difficulty that realizes high-temperature stirring process is larger, current existing method has strength to stir, magnetic agitation, mechanical agitation etc., all have some limitations, as strength stirring can only be effective in the time that viscosity is lower to melt, and overflowing of whipping process gas can be taken away a large amount of heats, whipping process energy consumption is increased, magnetic agitation is only effective to magnetic melt, and churned mechanically stirring wing in the time of high temperature because intensity reduces and by melt high temperature corrosion, therefore its high temperature life shortens greatly, adopt in addition the agitator of noble metal can only stir a small amount of glass melt.In addition, if material homogenizer process time completes in batching, so when high temperature because batching particle is larger, make to drive the bath component homogenization process of diffusion slow by concentration gradient, energy consumption increases, and for example adopting at present furnace cupola slag wool production is exactly a great process of energy consumption.Mineral wool is a kind of thermal insulation, acoustic material of high-quality, can be widely used in fire prevention, insulation, the heat insulation and sound absorption in the field such as building industry and industry.Raw material in mineral wool production is at present founded, mostly adopt furnace cupola to remove melting cold conditions slag and cold conditions adjusting material, its shortcoming is that energy consumption is large, coke consumption amount is more than 350kg/t, and furnace cupola is batch (-type) fusing, process is discontinuous, and production cost is higher, and current annual production is far away from the annual requirement of construction market, therefore limited the extensive use of mineral wool and goods thereof.If direct and solid-state hot blast furnace slag adjusting material is carried out to mix and blend, one can save cold conditions raw materials of slag becomes melt institute calorific requirement, two can be distributed to adjusting material in melt equably, significantly promote insulation, sound insulation, the weatherability of mineral wool, make the processing cost of mineral wool significantly reduce simultaneously.Difficulty when current stirring means uses above-mentioned technique and gets on is larger, therefore the present invention will provide a kind of new high-temperature fusant homogenizing stirring means and device, to improve the high temperature homogenization speed of melt and to reduce and stir cost, increase the reliability of high-temperature fusant whipping process, this stirring means and device also can use the high-temperature fusant homogenizing whipping process of other process requirements simultaneously.
Summary of the invention
The present invention is directed to the technical problem that prior art exists, a kind of apparatus and method that can strengthen high-temperature fusant homogenization process are provided, is exactly specifically the method that the modified agitating device of a kind of high-temperature fusant and high-temperature fusant are reinforced stirring.
The device of a kind of homogenizing high-temperature fusant proposed by the invention is made up of melting tank 1, stirring system and heating system three parts:
Described melting tank 1 comprises metal furnace shell 9, insulation furnace lining 10, aeroge coating 11, work furnace lining 12, and bell 4 is arranged at melting tank 1 top, and melting tank 1 bottom also has head piece 5, and resistance in head piece 56; Described melting tank 1 ecto-entad is followed successively by metal furnace shell 9, insulation furnace lining 10, aeroge coating 11, work furnace lining 12, and wherein aeroge coating 11 is attached to the back side of work furnace lining 12; Described bell 4 is positioned at the top of melting tank 1, and bell 4 is made up of metal shell 13, insulation bell lining 14, the avris of bell 4 leave add raw material window 15, connect the window 16 of heating electrode, the window 17 by puddler is left at the middle part of bell 4; The centre position, bottom of described melting tank 1 is provided with head piece 5 and resistance 6.
Described stirring system comprises stirring connecting rod 3, running part 18, hollow puddler 19, hollow stirring vane 20; Described hollow puddler 19 is positioned at the middle part of melting tank 1, and described running part 18 is connected with hollow puddler 19 by stirring connecting rod 3; Hollow stirring vane 20 on described hollow puddler 19 and puddler is integrated connection, the hollow parts of hollow puddler 19 and hollow stirring vane 20 holds together, described hollow parts is provided with the admission line 21 that carries out air cooling, admission line 21 is made up of main pipeline 22 and branch pipe(tube) 23, and the outlet nozzle 24 of wherein said branch pipe(tube) 23 is near the end of stirring vane; The top of described hollow puddler 19 is provided with discharges the gas outlet 25 of gas after heat exchange and the outlet pipe 26 that gas outlet 25 connects, and described outlet pipe 26 places are provided with safety valve 27; The molybdenum electrode 7 that the melt resistance heated of the distribution of described hollow stirring vane 20 and heating system is used staggers in the horizontal direction, concrete staggered positions does not affect the molybdenum electrode of heating system 7 with hollow stirring vane 20 moving up and down in vertical direction and is as the criterion, described hollow stirring vane 20 is helix and distributes on hollow puddler, in the time that hollow stirring vane 20 moves up and down, can make mixed object, in circumferential, axial and footpath, strong convection motion upwards occur, accelerate mixed process; The outer surface of described hollow puddler 19 and hollow stirring vane 20 scribbles intumescent coating 28 before homogenization operation.
Described heating system comprises heating power supply 8, wire 2, molybdenum electrode 7, and described heating power supply 8 is connected with molybdenum electrode 7 by wire 2.
Apparatus of the present invention are as follows for the concrete steps of homogenizing high-temperature fusant:
(1) in melting tank, add hot silicate slag, as hot slag or hot steel slag, and then add modified raw material, gases at high pressure are passed into the gas pipeline in hollow puddler and the hollow stirring vane of stirring system simultaneously, refrigerating gas from the outlet nozzle discharging jet at hollow stirring vane top through whole hollow stirring vane interior zone and hollow puddler interior zone, carry out cooling to hollow stirring vane and hollow puddler inside, cooling rear gas flows out from the top outlet of puddler, the flow velocity of whole refrigerating gas raises and automatically increases with hollow stirring vane and hollow puddler temperature outside, the gas that hollow stirring vane and hollow puddler internal cooling are used is pressure-air, high pressure nitrogen, high-pressure water vapor, high-pressure carbon dioxide, high pressure argon gas, any in high-pressure helium,
(2) be heated to after the whole fusings of the interior slag of melting tank and modified raw material, heating power supply is closed, land in high-temperature fusant in the mixing part of cooled stirring system, melt around intumescent coating in landing process outside hollow stirring vane outside and hollow puddler is entered by a large amount of foams of the rear generation of high-temperature fusant heating, after melt is cooled, form the cured foam layer shell in hollow stirring vane and hollow puddler outside, the cured foam layer shell forming plays insulation and structural re-enforcement to hollow stirring vane and hollow puddler, the heat that simultaneously sees through cured foam layer shell by hollow stirring vane and hollow puddler inside endlessly refrigerating gas take away, make hollow stirring vane and hollow puddler have the temperature province of sufficient mechanical strength in metal material, there is very high high-temperature machinery intensity with their cured foam layer shell one,
(3) after hollow stirring vane drops to minimum spacing in high-temperature fusant, then be lifted to certain altitude, complete successively the operational motion that melt is stirred of landing-lifting-landing, being wherein operating as of whipping process and heating process hocketed;
(4) when sampling inspection results demonstrates the bath component uniformity and viscosity is applicable to fibroblast or prepares after the process conditions of devitrified glass, open the plug of melting tank head piece, melt flows out from head piece by Action of Gravity Field, completes homogenization process.
Advantage of the present invention is:
1 compares with current rotary high temp Melt Stirring device, and it is little that agitator of the present invention stirs power, and stirring region increases, and can stir any one position in whole molten bath, does not stir dead angle, and homo-effect is good;
2 compare with current rotary high temp Melt Stirring device, and the elevated temperature strength of high-temperature fusant agitator of the present invention mixing part is high, and the life-span is long;
3 stir and compare with magnetic agitation with current strength, can stir the wider melt of range of viscosities, can stir non-magnetic melt, and stirring capacity is strong and mixed capacity is large;
4 compare with current mechanical agitation mode, the working lining back side, furnace wall, molten bath of the present invention has adopted aeroge coating, and there is heat barrier foam layer on surface, mixing part, and air cooling part area is little, and heat insulation furnace cover is arranged at top, molten bath, therefore the heat loss of Melt Stirring process is little;
5 compare with current mechanical agitation mode, in agitating mode of the present invention, agitator part is hollow, adopt air cooling and silicate foam insulating, make metal part be cooled to safety operation temperature, mechanical strength is high, and passing into the outlet of refrigerating gas pipeline has safety valve, and agitating mode is simple, safe and reliable while therefore use;
6 compare with current high-temperature fusant agitating mode, and the stirring region of Melt Stirring device of the present invention is large, and it is strong convection that melt is stirred process, and the Leaf positional distribution of agitator, after adjusting, can change the type of flow of melt, makes dispersed with stirring speed fast.
Brief description of the drawings
Fig. 1 apparatus of the present invention structural representation.
The mixing part structural representation of Fig. 2 apparatus of the present invention.
In figure: 1: melting tank; 2: wire; 3: stir connecting rod; 4: bell; 5: head piece: 6: resistance head: 7: molybdenum electrode: 8: heating power supply; 9: metal furnace shell: 10: insulation furnace lining: 11: aeroge coating; 12: work furnace lining; 13: metal shell; 14: insulation bell lining; 15: add raw material window; 16: the window that connects molybdenum electrode; 17: by the window of puddler; 18: running part; 19: hollow puddler; 20: hollow stirring vane; 21: admission line; 22: main pipeline; 23: branch pipe(tube); 24: outlet nozzle; 25: the gas outlet of hollow puddler cold junction; 26: outlet pipe; 27: safety valve; 28: intumescent coating.
Detailed description of the invention
Homogenizer provided by the present invention is made up of melting tank 1, stirring system and heating system three parts.
The insulation furnace lining material of apparatus of the present invention melting tank is fire-resistant light-weight aggregate castable or refractory fibre particle castable or fire-retardant foam concrete, their material is mainly High-Alumina or mullite or corundum or aluminosilicate property, working furnace lining material is that compact alumina refractory brick or fine and close zirconia-corundum refractory brick are built by laying bricks or stones and formed, the material of aeroge coating is aluminium oxide or mullite or zirconia or silica, and bell lining is for fire-resistant light-weight aggregate castable or refractory fibre particle castable or fire-retardant foam concrete is integrated poured forms.
Stirring system comprises the hollow stirring vane 20 on running part 18, hollow puddler 19 and puddler, the distribution of hollow stirring vane 20 and melt resistance heated stagger in the horizontal direction by molybdenum electrode 7, and concrete staggered positions standard does not affect heating molybdenum electric pole 7 with hollow stirring vane 20 moving up and down in vertical direction and is as the criterion.Hollow stirring vane 20 is helix and distributes on hollow puddler 19, in the time that hollow stirring vane 20 moves up and down, can make mixed object that the strong convection motion of turbulent form upwards occurs in circumferential, axial and footpath, accelerates mixed process.
Hollow stirring vane 20 on hollow puddler 19 and puddler is integrated connection, the hollow parts of hollow puddler 19 and hollow stirring vane 20 holds together, hollow parts is provided with the admission line 21 that carries out air cooling, admission line 21 is made up of main pipeline 22 and branch pipe(tube) 23, the outlet nozzle 24 of branch pipe(tube) 23 is wherein near the end of hollow stirring vane 20, cold gas can be sprayed onto behind the end of hollow stirring vane 20 and be folded to whole blade inner surface and hollow puddler 19 inner surfaces are carried out to efficient air cooling, then the outlet pipe 26 connecing from the gas outlet 25 of hollow puddler 19 cold junctions that confluxes flows out, complete the inside air cooling to hollow stirring vane 20 and hollow puddler 19, there is safety valve 27 at outlet pipe 26 places.
The outer surface of hollow puddler 19 and hollow stirring vane 20 scribbles intumescent coating 28 before coming into operation, this coating and high-temperature fusant Contact can produce a large amount of bubbles and be centered around around hollow puddler 19 and hollow stirring vane 20, bubble can form the heat-insulated solidified layer of one deck porous silicate after by the gas cooled of hollow puddler 19 and hollow stirring vane 20 inside, constantly lose fluidity and be formed with the hollow puddler 19 of heat-blocking action and the protecting sheathing of hollow stirring vane 20 together with curing melt with follow-up, make hollow puddler 19 and hollow stirring vane 20 have enough applied at elevated temperature mechanical strength and rigidity.
On hollow puddler 19 and puddler, hollow stirring vane 20, for moving up and down, wherein upwards for lifting acting, is downwards the movement of falling object.
Heating system adopts melt resistance heated, and connecting the rear realization of heating power supply 8 by molybdenum electrode 7 is heat energy by electric energy conversion.
Apparatus of the present invention are as follows for the concrete steps of high temperature homogenization process:
1, in molten bath 1, add hot slag, and then add modified raw material, gases at high pressure are passed into the admission line 21 in hollow puddler 19 and hollow stirring vane 20 simultaneously, refrigerating gas from outlet nozzle 24 discharging jets at hollow stirring vane 20 tops through whole hollow stirring vane 20 interior zones and hollow puddler 19 interior zones, carry out cooling to hollow stirring vane 20 and hollow puddler 19 inside, cooling rear gas flows out from the top outlet 25 of puddler, the flow velocity of whole refrigerating gas raises and automatically increases with hollow stirring vane 20 and hollow puddler 19 temperature outside, the gas that hollow stirring vane 20 and hollow puddler 19 internal coolings are used is high-pressure water vapor,
2, be heated to after the whole fusings of the interior slag of melting tank and modified raw material, heating power supply is closed, land in high-temperature fusant in the mixing part of cooled stirring system, in landing process the intumescent coating 28 in hollow stirring vane 20 and hollow puddler 19 outsides after high-temperature fusant heating, produced a large amount of foams enter around melt, after being cooled, melt forms the cured foam layer protecting sheathing in hollow stirring vane 20 and hollow puddler 19 outsides, hollow stirring vane 20 and hollow puddler 19 are played to insulation and structural re-enforcement, the heat that simultaneously sees through cured foam layer protecting sheathing by hollow stirring vane 20 and hollow puddler 19 inside endlessly refrigerating gas take away, make hollow stirring vane 20 and hollow puddler 19 have the temperature province of sufficient mechanical strength in metal material, there is very high high-temperature machinery intensity with their cured foam layer protecting sheathing one,
3, after hollow stirring vane drops to minimum spacing in high-temperature fusant, then be lifted to certain altitude, complete successively the operational motion that melt is stirred of landing-lifting-landing, being wherein operating as of whipping process and heating process hocketed;
4, when composition in melt stirs and viscosity is applicable to after fibroblast, open the plug 6 in the head piece 5 in molten bath 1, melt flows out from head piece 5 by Action of Gravity Field, completes homogenization process.Mineral wool is got rid of in melt process high speed centrifugation effect after homogenizing.
Claims (2)
1.
a device for homogenizing high-temperature fusant, is characterized in that described device is made up of melting tank (1), heating system and stirring system three parts:
described melting tank (1) comprises metal furnace shell (9), insulation furnace lining (10), aeroge coating (11), work furnace lining (12), bell (4) is arranged at melting tank (1) top, melting tank (1) bottom also has head piece (5), and resistance head (6) in head piece (5); Described melting tank (1) ecto-entad is followed successively by metal furnace shell (9), insulation furnace lining (10), aeroge coating (11), work furnace lining (12), and wherein aeroge coating (11) is attached to the back side of work furnace lining (12); Described bell (4) is positioned at the top of melting tank (1), bell (4) is made up of metal shell (13), insulation bell lining (14), the avris of bell (4) leave add raw material window (15), connect the window (16) of heating electrode, the window (17) by puddler is left at the middle part of bell (4); The centre position, bottom of described melting tank (1) is provided with head piece (5) and resistance head (6);
described stirring system comprises: stir connecting rod (3), running part (18), hollow puddler (19), hollow stirring vane (20); Described hollow puddler (19) is positioned at the middle part of melting tank (1), and described running part (18) is connected with hollow puddler (19) by stirring connecting rod (3); Hollow stirring vane (20) on described hollow puddler (19) and puddler is integrated connection, the hollow parts of hollow puddler (19) and hollow stirring vane (20) holds together, described hollow parts is provided with the admission line (21) that carries out air cooling, admission line (21) is made up of main pipeline (22) and branch pipe(tube) (23), and the outlet nozzle (24) of wherein said branch pipe(tube) (23) is near the end of stirring vane; The top of described hollow puddler (19) is provided with discharges the gas outlet (25) of gas after heat exchange and the outlet pipe (26) that gas outlet (25) connect, and described outlet pipe (26) locates to be provided with safety valve (27); The molybdenum electrode (7) that the distribution of described hollow stirring vane (20) and the melt resistance heated of heating system are used staggers in the horizontal direction, concrete staggered positions does not affect the molybdenum electrode of heating system (7) with hollow stirring vane (20) moving up and down in vertical direction and is as the criterion, and described hollow stirring vane (20) is helix and distributes on hollow puddler (19); The outer surface of described hollow puddler (19) and hollow stirring vane (20) scribbles intumescent coating (28) before homogenization operation;
described heating system comprises: heating power supply (8), wire (2), molybdenum electrode (7), described heating power supply (8) is connected with molybdenum electrode (7) by wire (2).
2.
described in claim 1, device, for the method for homogenizing high-temperature fusant, is characterized in that the method concrete steps are as follows:
(1) in melting tank, add hot silicate slag, and then add modified raw material, gases at high pressure are passed into the gas pipeline in hollow puddler and the hollow stirring vane of stirring system simultaneously, refrigerating gas from the outlet nozzle discharging jet at hollow stirring vane top through whole hollow stirring vane interior zone and hollow puddler interior zone, carry out cooling to hollow stirring vane and hollow puddler inside, cooling rear gas flows out from the top outlet of puddler, the flow velocity of whole refrigerating gas raises and automatically increases with hollow stirring vane and hollow puddler temperature outside, the gas that hollow stirring vane and hollow puddler internal cooling are used is pressure-air, high pressure nitrogen, high-pressure water vapor, high-pressure carbon dioxide, high pressure argon gas, any in high-pressure helium,
(2) be heated to after the whole fusings of the interior slag of melting tank and modified raw material, heating power supply is closed, land in high-temperature fusant in the mixing part of cooled stirring system, melt around intumescent coating in landing process outside hollow stirring vane outside and hollow puddler is entered by a large amount of foams of the rear generation of high-temperature fusant heating, after melt is cooled, form the cured foam layer shell in hollow stirring vane and hollow puddler outside, the cured foam layer shell forming plays insulation and structural re-enforcement to hollow stirring vane and hollow puddler, the heat that simultaneously sees through cured foam layer shell by hollow stirring vane and hollow puddler inside endlessly refrigerating gas take away, make hollow stirring vane and hollow puddler have the temperature province of sufficient mechanical strength in metal material, there is very high high-temperature machinery intensity with their cured foam layer shell one,
(3) after hollow stirring vane drops to minimum spacing in high-temperature fusant, then be lifted to certain altitude, complete successively the operational motion that melt is stirred of landing-lifting-landing, being wherein operating as of whipping process and heating process hocketed;
(4) when sampling inspection results demonstrates the bath component uniformity and viscosity is applicable to fibroblast or prepares after the process conditions of devitrified glass, open the resistance head of melting tank head piece, melt flows out from head piece by Action of Gravity Field, completes homogenization process.
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| CN201210165579.8A CN102698634B (en) | 2012-05-25 | 2012-05-25 | Device and method for homogenizing high-temperature melt |
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| CN102698634B true CN102698634B (en) | 2014-06-18 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103508653A (en) * | 2013-09-25 | 2014-01-15 | 马钢(集团)控股有限公司 | Device and method for homogenizing high-temperature melt |
| CN103553297A (en) * | 2013-11-18 | 2014-02-05 | 成都光明光电股份有限公司 | Manufacturing device and manufacturing method of glass raw material coarse melt |
| CN104109771A (en) * | 2014-07-14 | 2014-10-22 | 河南科技大学第一附属医院 | Molten aluminium refining furnace |
| CN104496153B (en) * | 2014-11-28 | 2017-04-12 | 湖北新华光信息材料有限公司 | Device and method for preventing crystallization at leakage hole |
| CN106045301B (en) * | 2016-05-25 | 2018-10-12 | 安徽工业大学 | A method of producing mineral wool using converter molten state early period slag |
| CN108069578B (en) * | 2017-12-26 | 2023-12-19 | 中建材玻璃新材料研究院集团有限公司 | Stirring rod structure of electronic display glass platinum channel and manufacturing method |
| CN108465403A (en) * | 2018-05-22 | 2018-08-31 | 中国原子能科学研究院 | A kind of lift air cooling mechanical stirring device |
| CN109001019A (en) * | 2018-08-01 | 2018-12-14 | 彩虹显示器件股份有限公司 | It is a kind of for the heating device of glass specimen to be melted |
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| CN2936413Y (en) * | 2006-08-15 | 2007-08-22 | 何光宇 | High efficiency stirrer of high tower prilling smelting slurry mixing bath |
| CN101591433A (en) * | 2008-05-29 | 2009-12-02 | 三菱瓦斯化学株式会社 | The manufacture method of polymeric amide |
| CN102203020A (en) * | 2008-09-29 | 2011-09-28 | 康宁股份有限公司 | Method and apparatus for homogenizing a glass melt |
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Patent Citations (4)
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| CN1793765A (en) * | 2004-12-22 | 2006-06-28 | 高桥谦三 | Agitator, agitating method, and melting furnace with agitator |
| CN2936413Y (en) * | 2006-08-15 | 2007-08-22 | 何光宇 | High efficiency stirrer of high tower prilling smelting slurry mixing bath |
| CN101591433A (en) * | 2008-05-29 | 2009-12-02 | 三菱瓦斯化学株式会社 | The manufacture method of polymeric amide |
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