CN108129031A - Slag wool produced by utilizing metallurgical waste and blast furnace slag and production method thereof - Google Patents
Slag wool produced by utilizing metallurgical waste and blast furnace slag and production method thereof Download PDFInfo
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- CN108129031A CN108129031A CN201711307428.0A CN201711307428A CN108129031A CN 108129031 A CN108129031 A CN 108129031A CN 201711307428 A CN201711307428 A CN 201711307428A CN 108129031 A CN108129031 A CN 108129031A
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- metallurgical waste
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- mineral wool
- furnace cinder
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- 239000002699 waste material Substances 0.000 title claims abstract description 55
- 239000011490 mineral wool Substances 0.000 title claims abstract description 54
- 239000002893 slag Substances 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000000654 additive Substances 0.000 claims abstract description 33
- 229910052742 iron Inorganic materials 0.000 claims abstract description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 7
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 7
- 239000003818 cinder Substances 0.000 claims description 58
- 238000000034 method Methods 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 14
- 229920000742 Cotton Polymers 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910052681 coesite Inorganic materials 0.000 claims description 6
- 229910052906 cristobalite Inorganic materials 0.000 claims description 6
- 229910052682 stishovite Inorganic materials 0.000 claims description 6
- 229910052905 tridymite Inorganic materials 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 5
- 238000000265 homogenisation Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000005352 clarification Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000005491 wire drawing Methods 0.000 claims description 3
- 238000005188 flotation Methods 0.000 abstract description 7
- 238000007885 magnetic separation Methods 0.000 abstract description 7
- 239000000571 coke Substances 0.000 abstract description 6
- 230000000996 additive effect Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 238000004321 preservation Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000000365 skull melting Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 239000008041 oiling agent Substances 0.000 description 2
- 238000010583 slow cooling Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/04—Manufacture of glass fibres or filaments by using centrifugal force, e.g. spinning through radial orifices; Construction of the spinner cups therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Glass Compositions (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention provides a slag wool produced by utilizing metallurgical waste and blast furnace slag and a production method thereof, wherein the slag wool is prepared by the following components in percentage by weight: 80-100% of blast furnace slag and 0-20% of metallurgical waste additive, wherein the acidity coefficient of the mixed slag of the blast furnace slag and the metallurgical waste additive is 0.94-1.5. The metallurgical waste additive adopts magnetic separation iron tailings or flotation iron tailings, SiO of the magnetic separation iron tailings or the flotation iron tailings2+Al2O3Not less than 70 wt%. The invention relates to slag wool produced by utilizing metallurgical waste and blast furnace slag and a production method thereof, which overcome the defects in the prior art, avoid using resources such as coke, silica and the like, fundamentally solve the problems of large pollution, high energy consumption and the like in the production process of the slag wool, comprehensively utilize the existing waste resources of metallurgical enterprises, obviously reduce the production cost of the slag wool, and simultaneously reduce the treatment and disposal cost of the waste resources such as iron tailings and the like.
Description
Technical field
The present invention relates to mineral wool technical fields, and in particular to a kind of slag produced using metallurgical waste and blast furnace cinder
Cotton and its production method.
Background technology
Molten blast furnace slag is one of principal by product of blast furnace.In general, molten blast furnace slag per ton contain (126~188) ×
The sensible heat of 104kJ is equivalent to the energy of 30~40kg heavy oil, and it has higher temperature, about 1450~1600 DEG C, belongs to
There is the residual heat resources of high-quality very high recycling to be worth.
Domestic at present mainly to produce mineral wool using soaring oven process, this method is adopted using cold conditions blast furnace slag as raw material after fusing
The staple shape inorfil made of the techniques such as supercentrifugal process or blowing process, it has, and light, thermal conductivity factor is small, do not burn,
Mothproof, inexpensive, corrosion-resistant, the features such as chemical stability is good, sound absorbing performance is good, thus filling in building is adiabatic, sound absorption, every
The a large amount of application of sound, oxygenerator and freezer cold insulation and the filling thermal insulation of various heat power equipments etc..
Existing mineral wool production technology majority is equipped with silica, dolomite, profound using slow cooling bulk blast-furnace cinder as raw material
Wu Yan etc. adjusts acidity coefficient as auxiliary material, then with addition of melting, mixing well in furnace cupola after a certain amount of coke, then using four
Roller centrifuge system produces mineral wool.The major defect of the technique is：1) energy such as a large amount of coke, coal must be consumed, it is per ton
Mineral wool about needs the fuel such as 0.6~0.7 ton of coke, and dust pollution is serious after burning, and cost is bright if smoke processing system is equipped with
Aobvious raising；2) must be using slow cooling blast-furnace cinder as raw material, and existing large iron and steel enterprise blast furnace is Water ramjet+, blast furnace slag
All becoming being granulated Water Quenching Slag, it is impossible to be used in cupola system, long-run development so that soaring furnace process blast furnace slag raw material is in short supply,
And a large amount of consumption of the natural resources such as silica, environmental disruption is also resulted in, increases production cost；It 3) must be by cold conditions blast furnace slag
Remelting consumes mass energy, and a large amount of sensible heats of blast furnace cinder are not utilized, and energy waste is serious.
There are also special with metallurgical waste and the relevant patent of blast furnace cinder production mineral wool and document, such as China both at home and abroad
Profit application No. is 201410663284.2, it is entitled《The method and device of mill tailings production mineral wool is equipped with melt blast-furnace cinder》
Patent of invention, particular content is：Using melt blast-furnace cinder as raw material, using mill tailings as adjusting material, using two-stage electric furnace
Heating, and nitrogen injection system is set in furnace bottom, through be finely homogenized it is quenched after molten slurry got rid of by centrifuge 3~5 microns of ore deposit
Cotton filament obtains mineral wool product after cotton collecting machine is collected.The invention has the following problems：First, it only states using mill tailings to be attached
Add agent, raw water physicochemical property of grading is not known, will be to life if tailing granularity is excessively thick, moisture is excessively high, chemical composition is unreasonable
The blast furnace slag smelting process of production mineral wool has a significant effect, and product quality will be caused to reduce, and production cost rises or even causes quick-fried
Fried accident；Second is that melt temperature rapid decrease will be made to melt nitrogen-blow in melting furnace, heated by electrodes is required supplementation with, waste is big
Measure the energy.
For another example Chinese Patent Application No. for 201310055394.6, it is entitled《A kind of Steel hot molten slag mineral wool and its preparation
Method》, particular content is：Thermal-state blast furnace slag is introduced directly into the fritting zone of skull melting furnace by slag chute, quenched material with it is hot
Blast furnace slag is synchronized together in the fritting zone for entering skull melting furnace, and the melt temperature in fritting zone is maintained at 1400~1500 DEG C, is protected
The warm time is 4~6h, and later into main molten area, the melt temperature in main molten area is maintained at 1420~1450 DEG C, soaking time for 6~
9h later into discharge zone, is then flowed on the idler wheel of centrifuge, forms raw cotton.The invention has the following problems：Skull melting furnace includes
Fritting zone and main molten area, and do not detach, if the cutout of long period occurs in blast furnace cinder, whole production procedure need to all stop
Only, energy waste is serious, and production efficiency is relatively low.And fritting zone charging heating process is changeable, and main molten area heat preservation method is stablized, will
It has mutually interference when being placed in same electric furnace, and power consumption is caused to increase, and production cost is higher, and actual production is using less, practicality
Property is poor.Control system
Therefore, there are expense of raw materials is high, energy consumption is big, seriously polluted, power consumption for mineral wool production technology in the prior art
The problems such as high urgent need to resolve.
Invention content
The purpose of the present invention is to provide a kind of mineral wools and its producer produced using metallurgical waste and blast furnace cinder
Method overcomes the shortcomings of the prior art, avoids, using resources such as coke, silicas, fundamentally solving mineral wool production process
The problems such as pollution is big, high energy consumption comprehensively utilizes the existing waste material of smelter, hence it is evident that reduces mineral wool production cost, together
When reduce iron tailings the like waste resource processing disposal costs.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of mineral wool produced using metallurgical waste and blast furnace cinder, the mineral wool is given up by blast furnace cinder and metallurgy
Material additives are formulated by following weight percent：Blast furnace cinder 80%~100%, metallurgical waste additives 0~20% are high
The acidity coefficient of the mixing slag of stove slag and metallurgical waste additives is 0.94~1.5.
The metallurgical waste additives use magnetic separation iron tailings or flotation iron tailings, SiO2+Al2O3>=70wt%.
The weight percent content of TFe is less than 22% in the magnetic separation iron tailings or flotation iron tailings.
Weight percentage >=95% of the metallurgical waste additives granularity below 100 mesh.
The weight percent content of S is less than 1.2% in the metallurgical waste additives.
Weight percent≤0.5% of water content in the metallurgical waste additives.
A kind of production method of mineral wool produced using metallurgical waste and blast furnace cinder, is included the following steps：
1) extraction of blast furnace cinder：It is drawn from blast furnace platform slag runner by blast furnace cinder, ensures blast furnace cinder in spill process
Temperature and mobility, it is made to flow directly out in the electric furnace to outside platform, receives blast furnace cinder temperature >=1250 DEG C in electric furnace；
2) melt preheats：Blast furnace cinder is heated to 1340~1480 DEG C using electric furnace heating system, makes viscosity≤1Pa
S, to ensure the mobility of blast furnace cinder；
3) preparation of blend melt：Metallurgical waste additives are added in blast furnace cinder, continue to heat, and pass through electromagnetic force
Effect realize blend melt temperature promoted and mixing；Then blend melt is sent to heat preservation by electric furnace lower part head piece
Stove makes blend melt complete homogenization and clarification in holding furnace；Blend melt final temperature is 1320~1400 DEG C, and viscosity is
1~3PaS；
4) mineral wool wire drawing：Blend melt in holding furnace is drained to cotton system processed, fiber is made by four-roller centrifuge
The mineral wool of average diameter≤7 μm.
Compared with prior art, the beneficial effects of the invention are as follows：
1) using blast furnace cinder as base stock, and electric furnace is directly entered after being drained by blast furnace residue channel, high temperature
Heat-energy losses are few, and the thermal energy is made full use of to produce mineral wool, blast furnace cinder waste heat can be utilized to greatest extent, physical thermal is converted into
Chemical heat has saved the energy such as a large amount of coke compared with prior art；
2) using iron tailings as additives source, the pretreating process such as processing crushing are not required to, fully utilize a variety of wastes moneys
Mineral wool product is all produced in source with iron and steel enterprise's waste, and production cost is substantially reduced, and it is discarded to have saved a large amount of iron tailings etc.
The processing disposal costs of object.Therefore, the present invention has significant economic benefit and environmental benefit, in industry especially metallurgical enterprise
Industry directly has apparent economic benefit using blast furnace cinder production mineral wool field and promotes practical value.
Specific embodiment
The specific embodiment of the present invention is described further below：
A kind of mineral wool produced using metallurgical waste and blast furnace cinder, the mineral wool is given up by blast furnace cinder and metallurgy
Material additives are formulated by following weight percent：Blast furnace cinder 80%~100%, metallurgical waste additives 0~20% are high
The acidity coefficient of the mixing slag of stove slag and metallurgical waste additives is 0.94~1.5.
The metallurgical waste additives use magnetic separation iron tailings or flotation iron tailings, SiO2+Al2O3>=70wt%.
The weight percent content of TFe is less than 22% in the magnetic separation iron tailings or flotation iron tailings.General iron tailings
Itself granularity can be met the requirements, and be processed without processes such as mechanical grindings.
Weight percentage >=95% of the metallurgical waste additives granularity below 100 mesh.When iron content is higher
Rock wool product quality is not only influenced, while a large amount of molten iron will be generated to need to discharge, influence production process arrangement, production efficiency drop
It is low.
The weight percent content of S is less than 1.2% in the metallurgical waste additives.S too high levels will seriously affect
The stability of rock wool.
Weight percent≤0.5% of water content in the metallurgical waste additives.Water content is excessively high to easily lead to explosion thing
Therefore occur, and easily increase [H] of rock wool product, influence product quality.
According to blast furnace cinder, adjunct ingredients and acidity coefficient Mk=(WSiO2+WAl2O3)/(WCaO+WMgO), (wherein W is matter
Amount) component ratio for mixing slag is adjusted, it is 0.94~1.5 to make its acidity coefficient.When additives additive amount is higher, power consumption rises
Significantly, production cost will be made significantly to increase.
A kind of production method of mineral wool produced using metallurgical waste and blast furnace cinder, is included the following steps：
1) extraction of blast furnace cinder：It is drawn from blast furnace platform slag runner by blast furnace cinder, ensures blast furnace cinder in spill process
Temperature and mobility, it is made to flow directly out in the electric furnace to outside platform, receives blast furnace cinder temperature >=1250 DEG C in electric furnace.
2) melt preheats：Blast furnace cinder is heated to 1340~1480 DEG C using electric furnace heating system, makes viscosity≤1Pa
S, to ensure the mobility of blast furnace cinder.It is made to have the condition of the quick fusion and homogenization for realizing melt and additives.
3) preparation of blend melt：Metallurgical waste additives are added in blast furnace cinder, continue to heat, and pass through electromagnetic force
Effect realize blend melt temperature promoted and mixing；Then blend melt is sent to heat preservation by electric furnace lower part head piece
Stove makes blend melt complete homogenization and clarification in holding furnace；Blend melt final temperature is 1320~1400 DEG C, and viscosity is
1~3PaS.
It is primary by outlet at bottom discharge molten iron every 1~2 month in electric furnace production process.Molten iron is derived from additives
Iron oxide and the iron after the carbon reduction in electrode, if not discharging it, will cause to corrode and wash away to slag fire resisting material of furnace body,
Influence the electric furnace service life.
4) mineral wool wire drawing：Blend melt in holding furnace is drained to cotton system processed, fiber is made by four-roller centrifuge
The mineral wool of average diameter≤7 μm.
Rock can be sprayed on during into cotton using misty dust laying oil and as the Water-soluble thermosetting phenolic resin of binding agent
On staple.The products such as mineral wool board, mineral wool felt, mineral wool pipe are obtained after mineral wool machine-shaping.
Embodiment 1：
Granularity is accounted for 96% by a kind of method using metallurgical waste and blast furnace cinder production mineral wool for 80 mesh of ＜ first
Flotation iron tailings be dried to moisture as 0.40% spare, SiO2+Al2O3=73wt%；Then by blast furnace cinder from blast furnace
It draws, is kept the temperature by electric heating system, it is made to flow directly into hot plate, 1260 DEG C of blast furnace cinder during inflow, Ran Houtong
It crosses after arc heating system is warming up to 1460 DEG C and promotes electrode, then ready iron tailings is disposably added in, blast furnace melts
Slag is 92 with iron tailings proportioning:8, acidity coefficient 1.1 then proceedes to that mixing slag is carried out to be warming up to 1460 DEG C, and heat preservation is equal
After changing 2.5h, mixing slag is discharged by lower part slag tap in holding furnace, continues uniform depth and clear in holding furnace
Clear 4h, temperature are 1330 DEG C, viscosity 2.3PaS, and mixing slag then is drained to four-roller centrifuge treating by head piece carries out
Cotton processed, while dust laying oil and binding agent are incorporated, then be collected by equipment such as cotton collecting machines by spraying colloid system, obtain mineral wool
Finished product, finished fiber average diameter are 5.1 μm.Periodically the remaining molten iron in electric furnace is discharged simultaneously.
Embodiment 2：
Granularity is accounted for 95% by a kind of method using metallurgical waste and blast furnace cinder production mineral wool for 100 mesh of ＜ first
Magnetic separation iron tailings be dried to moisture as 0.45% spare, SiO2+Al2O3=71wt%；Then by blast furnace cinder from height
Stove is drawn, and is kept the temperature by electric heating system, it is made to flow directly into hot plate, 1255 DEG C of blast furnace cinder during inflow, then
It is warming up to after 1450 DEG C by arc heating system and promotes electrode, then ready iron tailings is disposably added in, blast furnace
Slag is 85 with iron tailings proportioning:15, acidity coefficient 1.20 then proceedes to that mixing slag is carried out to be warming up to 1450 DEG C, heat preservation
Be homogenized 2.3h after, will mixing slag be discharged into holding furnace by lower part slag tap, holding furnace continue uniform depthization and
4.6h is clarified, temperature is 1350 DEG C, viscosity 2.0PaS, and mixing slag then is drained to four-roller centrifuge treating by head piece
Cotton processed is carried out, while dust laying oil and binding agent are incorporated, then be collected by equipment such as cotton collecting machines by spraying colloid system, obtains ore deposit
Slag wool finished product, finished fiber average diameter are 4.5 μm.Periodically the remaining molten iron in electric furnace is discharged simultaneously.
Claims (7)
1. a kind of mineral wool produced using metallurgical waste and blast furnace cinder, which is characterized in that the mineral wool is melted by blast furnace
Slag and metallurgical waste additives are formulated by following weight percent：Blast furnace cinder 80%~100%, metallurgical waste additives
0~20%, the acidity coefficient of the mixing slag of blast furnace cinder and metallurgical waste additives is 0.94~1.5.
A kind of 2. mineral wool produced using metallurgical waste and blast furnace cinder according to claim 1, which is characterized in that institute
Metallurgical waste additives are stated using iron selection tailings, SiO2+Al2O3>=70wt%.
3. a kind of mineral wool produced using metallurgical waste and blast furnace cinder according to claim 1 or 2, feature are existed
In the weight percent content of TFe is less than 22% in the metallurgical waste additives.
4. a kind of mineral wool produced using metallurgical waste and blast furnace cinder according to claim 1 or 2, feature are existed
In weight percentage >=95% of the metallurgical waste additives granularity below 100 mesh.
5. a kind of mineral wool produced using metallurgical waste and blast furnace cinder according to claim 1 or 2, feature are existed
In the weight percent content of S is less than 1.2% in the metallurgical waste additives.
6. a kind of mineral wool produced using metallurgical waste and blast furnace cinder according to claim 1 or 2, feature are existed
In weight percent≤0.5% of water content in the metallurgical waste additives.
7. a kind of production method of mineral wool as described in claim 1 produced using metallurgical waste and blast furnace cinder, special
Sign is, includes the following steps：
1) extraction of blast furnace cinder：It is drawn from blast furnace platform slag runner by blast furnace cinder, ensures the temperature of blast furnace cinder in spill process
Degree and mobility, make it flow directly out in the electric furnace to outside platform, receive blast furnace cinder temperature >=1250 DEG C in electric furnace；
2) melt preheats：Blast furnace cinder is heated to 1340~1480 DEG C using electric furnace heating system, makes viscosity≤1PaS, with
Ensure the mobility of blast furnace cinder；
3) preparation of blend melt：Metallurgical waste additives are added in blast furnace cinder, continue to heat, and pass through the work of electromagnetic force
With the temperature promotion and mixing for realizing blend melt；Then blend melt is sent to holding furnace by electric furnace lower part head piece,
Blend melt is made to complete homogenization and clarification in holding furnace；Blend melt final temperature is 1320~1400 DEG C, viscosity for 1~
3Pa·S；
4) mineral wool wire drawing：Blend melt in holding furnace is drained to cotton system processed, fiber, which is made, by four-roller centrifuge is averaged
The mineral wool of diameter≤7 μm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711307428.0A CN108129031A (en) | 2017-12-11 | 2017-12-11 | Slag wool produced by utilizing metallurgical waste and blast furnace slag and production method thereof |
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| CN201711307428.0A CN108129031A (en) | 2017-12-11 | 2017-12-11 | Slag wool produced by utilizing metallurgical waste and blast furnace slag and production method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110746118A (en) * | 2019-10-18 | 2020-02-04 | 酒泉钢铁(集团)有限责任公司 | Comprehensive utilization method of fly ash based on mineral wool tempering |
| CN112941324A (en) * | 2021-01-28 | 2021-06-11 | 赵江晨 | Novel process for comprehensively utilizing resources containing heavy metal hazardous wastes |
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| CN102276142A (en) * | 2011-06-30 | 2011-12-14 | 北京大学 | Equipment and method for preparing inorganic ore slag fiber by utilizing thermal-state blast furnace slag |
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