CN101759357A - Method for manufacturing inorganic fibers - Google Patents
Method for manufacturing inorganic fibers Download PDFInfo
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- CN101759357A CN101759357A CN201010033400A CN201010033400A CN101759357A CN 101759357 A CN101759357 A CN 101759357A CN 201010033400 A CN201010033400 A CN 201010033400A CN 201010033400 A CN201010033400 A CN 201010033400A CN 101759357 A CN101759357 A CN 101759357A
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- slag
- inorganic fibre
- raw material
- manufacturing inorganic
- flyash
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Abstract
The invention relates to a method for manufacturing inorganic fibers by using slag such as steel slag, scoria, foundry slag and the like, fly ash and metallic magnesium slag as raw materials, which is characterized in comprising the steps of: mixing, stirring and processing the powdered raw materials of the mixed slag, the fly ash and the metallic magnesium slag into granules with the grain parameter of 30 to 120 mm; loading coke and the raw materials into a stock bin according to a certain proportioning; uniformly mixing in the stock bin; heating and melting in a high-temperature closed melting furnace; leading melt flowing out of the melting furnace to flow into a four-roller centrifuge; dispersing the melted fluid into micro liquid drops by the four-roller centrifuge through high-speed rotation; enabling the liquid drops to fly out at high speed, wherein the liquid drops rub with air in a flying process for filamentization; spraying a surface modifying agent at the same time; and drafting by blast for obtaining inorganic fibers with a diameter of 3 to 5 mu m and a length of about 7 to 20 cm. The invention belongs to the comprehensive utilization of solid waste resources, the produced inorganic fibers can be used for industrial energy saving and building insulation and can simultaneously replace partial wood pulp for making paper for saving lumbers and protecting ecological environment, and the invention is suitable for industrial scale production.
Description
Technical field
The present invention relates to a kind of is the method that raw material is made inorganic fibre with slag such as slag, scum, foundry slag etc., flyash and metal magnesium slag, belongs to solid waste comprehensive utilization of resources technical field.
Background technology
Inorganic fibre and goods thereof are a kind of lightweight, efficient, inexpensive energy-conserving product, have that heat-conduction coefficient is low, thermal and insulating performance good, the sound absorption sound insulation, do not burn, fire does not produce toxic smog when taking place, be stale-proof and do not eat into, scrap advantages such as the back is nuisanceless, it is one of high-quality lagging material that generally uses both at home and abroad at present, be mainly used in body of wall, roofing, the partition insulation of buildings, also be used for freezer, equipment, vehicle shell heat insulating.Utilize inorganic fibre to produce various paper products simultaneously as filler, have fire prevention, high temperature resistant, rate of moisture absorption is little, advantage such as anticorrosion, durable, mothproof, surface propertys such as the snappiness of paper, fold resistance, bursting strength, photo sensitivity are stable, and do not have the harm of material radiating.Compare with traditional paper-making technique; inorganic fibre papermaking can replace about wood pulp 10-40%, has saved forest tree resource when turning waste into wealth, and has protected ecotope; manufacture craft can overcome the big drawback of traditional paper industry water consumption, reduces consumption and pollution to water resources.Recently utilize inorganic fibre and goods thereof agriculture growth matrix as a new generation, compare traditional matrix soil, have nontoxic, stable, bibulous characteristics, has good penetration power simultaneously, be specially adapted to the growth of vegetables, flowers and other farm crop, in China, this brand-new matrix is widely adopted, even in South East Asia, this product also has certain market share.
A large amount of flyash and the various industrial slags of the annual discharging of China covers the soil, and contaminate environment and increase investment make full use of these wastes for improving the level of resources utilization, develop a circular economy, and building a conservation-minded society has crucial meaning.At present, utilize flyash to spray silk usually under high-temperature fusion and make inorganic fibre, the main chemical of flyash is SiO
2, Al
2O
3, CaO, MgO, TiO
2, sulfide etc., in fact, need slag making in order to make metal include the non-ferrous metal separation in the metallurgical process, the scope that the composition of a variety of metallurgical slags all requires near fibrosis, Lian Tie waste residue particularly, can directly be used for producing inorganic fibre,, realize the comprehensive utilization of solid waste so fully utilize various industrial slags and flyash is made inorganic fibre in the present invention.Because slag fusion, uniform ingredients and structure mostly are vitreum, and the energy that consumes when melting once more is less, are the modes of production of relatively saving energy consumption so adopt industrial slag in the starting material of the present invention.Suitably increase snappiness, intensity and heat insulating coefficient that the content of MgO in the raw material helps improving fiber in addition, carry out formula adjustment to improve the performance of fiber so increase metal magnesium slag in the raw material of the present invention.
Summary of the invention
It is the method that raw material is made inorganic fibre with slag such as slag, scum, foundry slag etc., flyash and metal magnesium slag that technical problem to be solved by this invention provides a kind of.
The preparation method who adopts among the present invention: at first will mix slag, flyash, it is the particle of 30-120mm that metal magnesium slag powder raw material mixing stirring and processing becomes particle diameter, with coke and the raw material feed bin of packing into according to a certain ratio, and in feed bin, mix, heat fused in high temperature closure formula smelting furnace, the effusive melt of smelting furnace flows into four roller whizzers, four roller whizzers are dispersed into fine droplet with the fused fluid and give drop by high speed rotating and fly out with high speed, drop rubs into silk with air in the process of flight, spray surface-modifying agent simultaneously, the air blast drawing-off obtains diameter 3-5 μ m, the inorganic fibre about length 7-20cm.
In the preparation process, whether feed composition is rationally, melt temperature, the speed of whizzer running roller, the performance of surface-modifying agent etc. will determine length, diameter and the fiber rate of formation of fiber.Among the present invention:
The weight percent of described raw material mixing slag, flyash, metal magnesium slag consists of: mix slag: 30-60%, flyash: 20-40%, metal magnesium slag: 20-30%
The weight ratio of described coke and raw material is 1: 5
The effusive melt temperature of described smelting furnace is 1250-1450 ℃
The speed of rotation of described four roller whizzer running rollers is 2900-5500 rev/min
Described surface-modifying agent is silicone oil, emulsifying agent, D1821, consistent lubricant essence, fatty aqueous acid.Its making method is: water is heated to 50-80 ℃, silicone oil, emulsifying agent, D1821, consistent lubricant essence, lipid acid are joined in the hot water, stirring is dissolved it fully, is cooled to 0 ℃ subsequently, makes surface-modifying agent.
The testing method of sample thermal conductivity, slag ball content is carried out with reference to GB/T11835-1998.Through sample testing, assay shows the inorganic fibre thermal conductivity 0.028-0.042 of the present invention's preparation, slag ball content 4.2-5.9.
Embodiment
Example one
By weight percentage, to mix 40 parts in slag, 35 parts in flyash, 25 parts of metal magnesium slags, it is the particle of 30-120mm that powder raw material mixing stirring and processing becomes particle diameter, with 20 parts in coke and 100 parts of feed bins of packing into of raw material, and in feed bin, mix heat fused in high temperature closure formula smelting furnace, 1350 ℃ of temperature of smelting furnace, the effusive melt of smelting furnace flows into four roller whizzers, and roller speed is respectively 1
#2900 rev/mins of running rollers, 2
#3500 rev/mins of running rollers, 3
#4500 rev/mins of running rollers, 4
#5500 rev/mins of running rollers, the fused fluid is dispersed into fine droplet and gives drop fly out with high speed, drop rubs into silk with air in the process of flight, spray surface-modifying agent simultaneously, the air blast drawing-off obtains diameter 3.6 μ m, the inorganic fibre of length 7-20cm.Yield 95%.Thermal conductivity: 0.038; Slag ball content: 4.0.
Example two
By weight percentage, to mix 55 parts in slag, 25 parts in flyash, 20 parts of metal magnesium slags, it is the particle of 30-120mm that powder raw material mixing stirring and processing becomes particle diameter, with 20 parts in coke and 100 parts of feed bins of packing into of raw material, and in feed bin, mix heat fused in high temperature closure formula smelting furnace, 1250 ℃ of temperature of smelting furnace, the effusive melt of smelting furnace flows into four roller whizzers, and roller speed is respectively 1
#2900 rev/mins of running rollers, 2
#3300 rev/mins of running rollers, 3
#4200 rev/mins of running rollers, 4
#5300 rev/mins of running rollers, the fused fluid is dispersed into fine droplet and gives drop fly out with high speed, drop rubs into silk with air in the process of flight, spray surface-modifying agent simultaneously, the air blast drawing-off obtains diameter 4.2 μ m, the inorganic fibre of length 7-20cm.Yield 93%.Thermal conductivity: 0.042; Slag ball content: 6.0.
Claims (8)
1. method of making inorganic fibre, it is characterized in that at first will mixing slag, flyash, it is the particle of 30-120mm that metal magnesium slag powder raw material mixing stirring and processing becomes particle diameter, with coke and the raw material feed bin of packing into according to a certain ratio, and in feed bin, mix, heat fused in high temperature closure formula smelting furnace, the effusive melt of smelting furnace flows into four roller whizzers, four roller whizzers are dispersed into fine droplet with the fused fluid and give drop by high speed rotating and fly out with high speed, drop rubs into silk with air in the process of flight, spray surface-modifying agent simultaneously, the air blast drawing-off obtains diameter 3-5 μ m, the inorganic fibre about length 7-20cm.
2. according to the method for the manufacturing inorganic fibre described in the claim 1, it is characterized in that adding in the raw material metal magnesium slag and carry out formula adjustment, improve the content of MgO in the raw material, help improving snappiness, intensity and the heat insulating coefficient of fiber, thereby improve the performance of fiber.
3. according to the method for the manufacturing inorganic fibre described in the claim 1, it is characterized in that the weight percent of raw material mixing slag, flyash, metal magnesium slag is: mix slag: 30-60%, flyash: 20-40%, metal magnesium slag: 20-30%.
4. according to the method for the manufacturing inorganic fibre described in the claim 1, the weight percent that it is characterized in that coke and raw material is 1: 5.
5. according to the method for the manufacturing inorganic fibre described in the claim 1, it is characterized in that the effusive melt temperature of described smelting furnace is 1250-1450 ℃.
6. according to the method for the manufacturing inorganic fibre described in the claim 1, the speed of rotation that it is characterized in that four roller whizzer running rollers is 2900-5500 rev/min.
7. according to the method for the manufacturing inorganic fibre described in the claim 1, it is characterized in that surface-modifying agent is silicone oil, emulsifying agent, D1821, consistent lubricant essence, fatty aqueous acid.
8. be silicone oil, emulsifying agent, D1821, consistent lubricant essence, fatty aqueous acid according to the properties-correcting agent described in the claim 7, it is characterized in that water is heated to 50-80 ℃, silicone oil, emulsifying agent, D1821, consistent lubricant essence, lipid acid are joined in the hot water, stirring is dissolved it fully, be cooled to 0 ℃ subsequently, make surface-modifying agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010033400A CN101759357A (en) | 2010-01-15 | 2010-01-15 | Method for manufacturing inorganic fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010033400A CN101759357A (en) | 2010-01-15 | 2010-01-15 | Method for manufacturing inorganic fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101759357A true CN101759357A (en) | 2010-06-30 |
Family
ID=42490762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010033400A Pending CN101759357A (en) | 2010-01-15 | 2010-01-15 | Method for manufacturing inorganic fibers |
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|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941896A (en) * | 2010-08-30 | 2011-01-12 | 天津市化学试剂研究所 | Method for recovering solvent acetone in production of N-(1-naphthyl) ethylenediamine dihydrochloride |
| CN102886812A (en) * | 2012-07-09 | 2013-01-23 | 江苏富星新材料科技有限公司 | System for producing coal ash insulation board |
| CN105544089A (en) * | 2015-12-18 | 2016-05-04 | 安东波 | Production process of inorganic fiber heat preservation material |
| CN112893402A (en) * | 2021-01-18 | 2021-06-04 | 朱广东 | Treatment process of magnesium oxide reducing slag |
| CN113727950A (en) * | 2019-04-25 | 2021-11-30 | 新日本繊维株式会社 | Radiation-resistant inorganic material and fiber thereof |
| CN115196868A (en) * | 2022-07-30 | 2022-10-18 | 苏州大乘环保新材有限公司 | Carbon fiber rainwater collection module core material and preparation method thereof |
-
2010
- 2010-01-15 CN CN201010033400A patent/CN101759357A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941896A (en) * | 2010-08-30 | 2011-01-12 | 天津市化学试剂研究所 | Method for recovering solvent acetone in production of N-(1-naphthyl) ethylenediamine dihydrochloride |
| CN101941896B (en) * | 2010-08-30 | 2013-06-19 | 天津市化学试剂研究所 | Method for recovering solvent acetone in production of N-(1-naphthyl) ethylenediamine dihydrochloride |
| CN102886812A (en) * | 2012-07-09 | 2013-01-23 | 江苏富星新材料科技有限公司 | System for producing coal ash insulation board |
| CN102886812B (en) * | 2012-07-09 | 2014-11-19 | 江苏富祥新材料科技有限公司 | System for producing coal ash insulation board |
| CN105544089A (en) * | 2015-12-18 | 2016-05-04 | 安东波 | Production process of inorganic fiber heat preservation material |
| CN105544089B (en) * | 2015-12-18 | 2018-08-03 | 安东波 | Inorganic heat insulating fiber material producing process |
| CN113727950A (en) * | 2019-04-25 | 2021-11-30 | 新日本繊维株式会社 | Radiation-resistant inorganic material and fiber thereof |
| CN112893402A (en) * | 2021-01-18 | 2021-06-04 | 朱广东 | Treatment process of magnesium oxide reducing slag |
| CN115196868A (en) * | 2022-07-30 | 2022-10-18 | 苏州大乘环保新材有限公司 | Carbon fiber rainwater collection module core material and preparation method thereof |
| CN115196868B (en) * | 2022-07-30 | 2023-07-14 | 苏州大乘环保新材有限公司 | Carbon fiber rainwater collection module core material and preparation method thereof |
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Open date: 20100630 |