CN102399055A - Method for preparing super-fine inorganic fiber by using nickel-iron smelting waste residue - Google Patents
Method for preparing super-fine inorganic fiber by using nickel-iron smelting waste residue Download PDFInfo
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- CN102399055A CN102399055A CN2011101289265A CN201110128926A CN102399055A CN 102399055 A CN102399055 A CN 102399055A CN 2011101289265 A CN2011101289265 A CN 2011101289265A CN 201110128926 A CN201110128926 A CN 201110128926A CN 102399055 A CN102399055 A CN 102399055A
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Abstract
The invention discloses a method for preparing super-fine inorganic fiber by using a nickel-iron smelting waste residue. The method comprises the following steps of: rationally proportioning the nickel-iron smelting waste residue and basalt; then grinding and granulating; smelting and converting through a high-temperature furnace to prepare the super-fine inorganic fiber; performing surface modification treatment on the prepared super-fine inorganic fiber by using a softening enhancement modifying agent to improve the softness and the strength of the fiber. Thus, the fiber can be used as a novel heat-insulating, cold storage, sound absorption, fire-proof and light building material and the like. In the method, industrial solid waste is fully utilized, and environmental pollution is reduced.
Description
Technical field
The present invention relates to a kind of preparation method of ultra-fine inorganic fibre, be specifically related to a kind of method of utilizing the nickel-iron smelting waste residue to produce ultra-fine inorganic fibre.
Background technology
Nickel is to produce stainless essential alloying element, is the important strategic metal.Along with the exploitation day by day of nickel ore resource, smelting nickel with red soil nickel ore becomes new development trend.Mostly adopt the hot stove retailoring in ore deposit with laterite nickel ore and producing ferronickel, slag amount accounts for 80%～90% of raw material, enormous amount.Because this slag can not cause chemical pollution to environment, is mainly used in the marine reclamation land in the coastland in the world.If the factory depths is landlocked, it is stored up taking increasing soil in a large number, becomes day by day to hinder the subject matter that factory develops and the ferronickel novel process is applied.
Metallurgical slag has had a large amount of successful cases at the recycling of building material field; China's metallurgical slag utilization ratio is about 72%; Utilize approach to be mainly building products such as cement mixture, concrete admixture, pavement material, backfilling material, brick and building block, and as the fertile improvement of farming acid soil.External metallurgical slag main utilizes approach to comprise that preparation portland cement, the equivalent material, the replace lime stone that gather materials as high-strength concrete gather materials as roadbed material, are used to prepare anti-skid surface brick and hydraulicity road surface gelling material etc.The hot slag in Rhometal ore deposit is because CaO content is less, and its utilization ratio is relatively low.Abroad mainly as concrete fine aggregate, with Wingdale and alumina produced with combination high-alumina cement, with alkali-activator produced with combination composite inorganic polymkeric substance etc.; Domestic utilization research to the hot slag in Rhometal ore deposit still rarely has report.It is reported that japanese water island Iron And Steel Company and building materials enterprise set up river amosite asbestos company jointly,, adopt the technology of chilling after the modification of ferronickel blast furnace molten slag is made asbestos since 1989.The said firm produces two kinds of products, and a kind of is the tabular adiabatic sound absorbent material of insulation; A kind of be granular silk floss be used for refractory paint and building material is used material.
Chinese patent CN101293731 has also disclosed a kind of method of utilizing ferronickel dross sensible heat to produce mineral wool; Be be basic material with the red soil nickel ore, be that 1450～1500 ℃, the ferronickel dross injection capacity of acidity quotient >=1.25 are in 15 tons the electric power holding furnace with temperature; Need not add any flux; With melt temperature adjustment and remain in 1350～1400 ℃ the scope; Through the controlled head piece of water-cooled and the diversion trench melt after with temperature adjustment, accurately guide to four roller whizzers then, make ferronickel dross directly convert mineral wool fibre into.
But use ferronickel dross directly to convert mineral fibre into merely, because it becomes fine component proportions suitable not to the utmost, so fibre strength performance and kind not to the utmost.
Annual about 1,000 ten thousand tons of the ferroalloy slag that produces of China, and also continue to increase with about 8,000,000 tons speed every year.Therefore, seek the technological approaches of economical rationality as early as possible, correctly dispose and fully utilize the hot slag in Rhometal ore deposit, sustainable and healthy development and the applying of technology that keeps the nickel industry had the important strategic meaning.
Summary of the invention
The object of the present invention is to provide a kind of nickel-iron smelting waste residue that makes full use of, reduce environmental pollution, turn waste into wealth and produce the method for ultra-fine inorganic fibre.
For achieving the above object; The technical scheme that the present invention adopts is: at first with nickel-iron smelting waste residue and Irish touchstone by mass ratio 45%～65%: 55%～35% allocates; The O/Si ratio that makes silica compound ion in the raw material is 4.0～4.6; Make then it is crushed in the particle adding high melt receiver that particle diameter is 5～20 μ m; In～1600 degree fusions of 1500 degree, raw material melted is separated through rapid-result fine equipment of centrifugal height and slag ball, processing diameter is that 0.01～0.05mm, length are the ultra-fine inorganic fibre of 0.8～8mm; The softening reinforced modifier that in the ultra-fine inorganic fibre that makes, adds fiber quality 0.8%～1.5% is carried out surface modification treatment through dry method or wet method to ultra-fine inorganic fibre and is got final product.
The ultra-fine inorganic fibre that the present invention makes can be used as novel heat insulation, cold-storage, sound-absorbing, fire-proof light material of construction etc.The present invention makes full use of industrial solid castoff, has reduced environmental pollution.
Embodiment
The present invention passes through ferronickel slag assay of the prior art, result such as following table:
Table laterite ferronickel electric furnace reduction slag total analysis MV (%)
| Sequence number | Ni | Fe | C | S | Co | SiO 2 | MgO | Al 2O 3 | Cr 2O 3 |
| 1# | 0.083 | 2.48 | 0.15 | 0.07 | 0.007 | 59.88 | 26.25 | 2.92 | 0.56 |
| 2# | 0.13 | 5.44 | 0.087 | 0.032 | 0.002 | 59.04 | 28.9 | 2.40 | 2.28 |
| 3# | 0.111 | 6.47 | 0.085 | 0.052 | 0.005 | 57.49 | 7.93 | 3.50 | 1.66 |
Analytical results shows that nickel-iron smelting slag major ingredient is SiO
2, all the other are MgO and a spot of Al
2O
3, CaO content is not enough.Most of metallurgical slag is to be cement raw material with pyrometallurgy slag processing and utilizing, but ferronickel slag and blast furnace slag, slag are different, and generally the content of CaO is less in the ferronickel slag, so it is little slag to be utilized as the possibility of main raw material of cement.But it is not superior producing its performance of mineral fibre with the ferronickel slag purely as stated yet.
Irish touchstone is a kind of base property extrusive rock, the magma that is gone out by the volcanic eruption a kind of compact shape that the cooling after coagulation forms on the face of land or the rock of pumiceous texture.Its main chemical compositions is silicon-dioxide, aluminium sesquioxide, red stone, quicklime, Natural manganese dioxide (also having a spot of potassium oxide, sodium oxide).The Irish touchstone volume density is 2.8～3.3g/cm
3, its compressive strength of compact structure is very big, can reach 300MPa, even higher.Irish touchstone is one of good material of construction, and it has, and ultimate compression strength is big, crush values is low, wear-resisting, characteristics such as water-intake rate is low, electroconductibility is weak, erosion resistance is strong.
Through to after ferronickel slag and the composition of basalts analysis, different with prior art, the present invention suitably allocates the typical multicomponent silicate melt of mixing formation with ferronickel slag and Irish touchstone usage ratio, and making wherein, O/Si ratio is 4.0～4.6.Being shaped as of silica compound ion this moment single tetrahedral (SiO4)
4-, the simplest in all mineral oxide compound ion structures.Allocate suitable CaO in the slag into, can reduce the high temperature viscosity of slag, it is dissociated into Ca in high-temperature fusant simultaneously
2+And O
2-, the O after dissociating
2-Get in the silica compound ion, the ratio of O/Si is increased, weaken siliconoxygen bond, the silica compound ion will be become single silicon-oxy tetrahedron by huge STRUCTURE DECOMPOSITION, so interionic frictional force is smaller, viscosity is low in the melt, good fluidity.This is fit to the requirement of blast-furnace smelting to slag fluidity and fibre-forming performance just.Describing the present invention below in detail utilizes the nickel-iron smelting waste residue to produce the method for ultra-fine inorganic fibre.
1) at first nickel-iron smelting waste residue and Irish touchstone are carried out rational proportion, regulate the ratio of silica compound ion in the raw material, then it is crushed to the particle that particle diameter is 5～20 μ m;
2) particle after will pulverizing adds in the high melt receiver, in～1600 degree fusions of 1500 degree, separates through rapid-result fine equipment of centrifugal height and slag ball, and processing diameter is that 0.01～0.05mm, length are the ultra-fine inorganic fibre of 0.8～8mm;
3) the softening reinforced modifier that in the ultra-fine inorganic fibre that makes, adds fiber quality 0.8%～1.5% is through carrying out surface modification treatment in method or wet method to ultra-fine inorganic fibre.
Through the present invention preparation inorganic fibre, have advantages such as heat insulation, sound insulation, high thermal stability, excellent dielectric properties and resistance to acids and bases.The process method that the present invention relates to is simple, has reduced environmental pollution, turns waste into wealth, and very is fit to large-scale production.
Embodiment 1: at first nickel-iron smelting waste residue and Irish touchstone ore deposit are allocated by mass ratio at 45%: 55%, the O/Si ratio that makes silica compound ion in the raw material is 4.0～4.2, then it is crushed to the particle that particle diameter is 5～20 μ m; Particle after pulverizing is added in the high melt receiver, in～1600 degree fusions of 1500 degree, raw material melted is separated through rapid-result fine equipment of centrifugal height and slag ball, processing diameter is that 0.02mm, length are the ultra-fine inorganic fibre of 5mm; The softening reinforced modifier that in the ultra-fine inorganic fibre that makes, adds fiber quality 0.8% is carried out surface modification treatment through dry method or wet method to ultra-fine inorganic fibre; Improving the flexibility and the intensity of fiber, as the substitute of various fields material therefor the time, good consistency and dispersiveness are arranged with the substrate material of getting along to guarantee this inorganic fibre.
Embodiment 2: at first nickel-iron smelting waste residue and Irish touchstone ore deposit are allocated by mass ratio at 50%: 50%, the O/Si ratio that makes silica compound ion in the raw material is 4.1～4.3, then it is crushed to the particle that particle diameter is 5～20 μ m; Particle after pulverizing is added in the high melt receiver, in～1600 degree fusions of 1500 degree, raw material melted is separated through rapid-result fine equipment of centrifugal height and slag ball, processing diameter is that 0.04mm, length are the ultra-fine inorganic fibre of 8mm; The softening reinforced modifier that in the ultra-fine inorganic fibre that makes, adds fiber quality 1.2% is carried out surface modification treatment through dry method or wet method to ultra-fine inorganic fibre and is got final product.
Embodiment 3: at first nickel-iron smelting waste residue and Irish touchstone ore deposit are allocated by mass ratio at 55%: 45%, the O/Si ratio that makes silica compound ion in the raw material is 4.2～4.4, then it is crushed to the particle that particle diameter is 5～20 μ m; Particle after pulverizing is added in the high melt receiver, in～1600 degree fusions of 1500 degree, raw material melted is separated through rapid-result fine equipment of centrifugal height and slag ball, processing diameter is that 0.01mm, length are the ultra-fine inorganic fibre of 2mm; The softening reinforced modifier that in the ultra-fine inorganic fibre that makes, adds fiber quality 1.0% is carried out surface modification treatment through dry method or wet method to ultra-fine inorganic fibre and is got final product.
Embodiment 4: at first nickel-iron smelting waste residue and Irish touchstone ore deposit are allocated by mass ratio at 60%: 40%, the O/Si ratio that makes silica compound ion in the raw material is 4.3～4.5, then it is crushed to the particle that particle diameter is 5～20 μ m; Particle after pulverizing is added in the high melt receiver, in～1600 degree fusions of 1500 degree, raw material melted is separated through rapid-result fine equipment of centrifugal height and slag ball, processing diameter is that 0.05mm, length are the ultra-fine inorganic fibre of 0.8mm; The softening reinforced modifier that in the ultra-fine inorganic fibre that makes, adds fiber quality 1.5% is carried out surface modification treatment through dry method or wet method to ultra-fine inorganic fibre and is got final product.
Embodiment 5: at first nickel-iron smelting waste residue and Irish touchstone ore deposit are allocated by mass ratio at 65%: 35%, the O/Si ratio that makes silica compound ion in the raw material is 4.4～4.6, then it is crushed to the particle that particle diameter is 5～20 μ m; Particle after pulverizing is added in the high melt receiver, in～1600 degree fusions of 1500 degree, raw material melted is separated through rapid-result fine equipment of centrifugal height and slag ball, processing diameter is that 0.03mm, length are the ultra-fine inorganic fibre of 3mm; The softening reinforced modifier that in the ultra-fine inorganic fibre that makes, adds fiber quality 1.3% is carried out surface modification treatment through dry method or wet method to ultra-fine inorganic fibre and is got final product.
Employed softening reinforced modifier adopts the disclosed a kind of inorfil softening intensifier of Chinese patent CN101503280A in the embodiment of the invention.
The ultra-fine inorganic fibre that makes according to preparation method of the present invention can be used as novel heat insulation, cold-storage, sound-absorbing, fire-proof light material of construction etc.
More than be merely the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. method of utilizing the nickel-iron smelting waste residue to produce ultra-fine inorganic fibre is characterized in that:
1) at first nickel-iron smelting waste residue and Irish touchstone are carried out rational proportion, regulate the ratio of silica compound ion in the raw material, then it is crushed to the particle that particle diameter is 5～20 μ m;
2) particle after will pulverizing adds in the high melt receiver, in～1600 degree fusions of 1500 degree, separates through rapid-result fine equipment of centrifugal height and slag ball, and processing diameter is that 0.01～0.05mm, length are the ultra-fine inorganic fibre of 0.8～8mm;
3) the softening reinforced modifier that in the ultra-fine inorganic fibre that makes, adds fiber quality 0.8%～1.5% is carried out surface modification treatment through dry method or wet method to ultra-fine inorganic fibre.
2. the method for utilizing the nickel-iron smelting waste residue to produce ultra-fine inorganic fibre according to claim 1; It is characterized in that: at first with nickel-iron smelting waste residue and Irish touchstone by mass ratio 45%～65%: 55%～35% allocates, and the O/Si ratio that makes silica compound ion in the raw material is 4.0～4.6.
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|---|---|---|---|
| CN2011101289265A CN102399055A (en) | 2011-05-18 | 2011-05-18 | Method for preparing super-fine inorganic fiber by using nickel-iron smelting waste residue |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043896A (en) * | 2012-07-13 | 2013-04-17 | 中国恩菲工程技术有限公司 | Method for preparing mineral wool |
| CN104003613A (en) * | 2012-08-06 | 2014-08-27 | 上海榕新实业有限公司 | Method for manufacturing inorganic fiber by means of municipal sludge and smelt slag |
| CN109517418A (en) * | 2018-11-09 | 2019-03-26 | 宿迁德特材料科技有限公司 | A kind of preparation method of high mating type heat preservation putty material |
| CN110922044A (en) * | 2019-12-19 | 2020-03-27 | 沈阳有色金属研究院有限公司 | Ferronickel slag fiber stabilizer and preparation method and application thereof |
| CN111675487A (en) * | 2020-05-26 | 2020-09-18 | 上海大学 | Method for preparing slag glass ceramics by using natural raw materials and slag glass ceramics prepared by same |
| CN113636787A (en) * | 2021-07-21 | 2021-11-12 | 石家庄三顺保温材料有限公司 | Hard inorganic fiber spraying cotton for building and preparation method thereof |
-
2011
- 2011-05-18 CN CN2011101289265A patent/CN102399055A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 何其捷: "用镍铁渣制作矿物棉", 《玻璃纤维》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043896A (en) * | 2012-07-13 | 2013-04-17 | 中国恩菲工程技术有限公司 | Method for preparing mineral wool |
| CN103043896B (en) * | 2012-07-13 | 2015-04-01 | 中国恩菲工程技术有限公司 | Method for preparing mineral wool |
| CN104003613A (en) * | 2012-08-06 | 2014-08-27 | 上海榕新实业有限公司 | Method for manufacturing inorganic fiber by means of municipal sludge and smelt slag |
| CN109517418A (en) * | 2018-11-09 | 2019-03-26 | 宿迁德特材料科技有限公司 | A kind of preparation method of high mating type heat preservation putty material |
| CN110922044A (en) * | 2019-12-19 | 2020-03-27 | 沈阳有色金属研究院有限公司 | Ferronickel slag fiber stabilizer and preparation method and application thereof |
| CN111675487A (en) * | 2020-05-26 | 2020-09-18 | 上海大学 | Method for preparing slag glass ceramics by using natural raw materials and slag glass ceramics prepared by same |
| CN113636787A (en) * | 2021-07-21 | 2021-11-12 | 石家庄三顺保温材料有限公司 | Hard inorganic fiber spraying cotton for building and preparation method thereof |
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| CB03 | Change of inventor or designer information |
Inventor after: Yin Wenxin Inventor after: Chen Junzhi Inventor after: Zheng Xiaopeng Inventor after: Sun Zhen Inventor after: Zhao Jingfu Inventor before: Yi Wenxin Inventor before: Chen Junzhi Inventor before: Zheng Xiaopeng Inventor before: Sun Zhen Inventor before: Zhao Jingfu |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YI WENXIN CHEN JUNZHI ZHENG XIAOPENG SUN ZHEN ZHAO JINGFU TO: YIN WENXIN CHEN JUNZHI ZHENG XIAOPENG SUN ZHEN ZHAO JINGFU |
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Application publication date: 20120404 |
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