CN102633426A - Method for producing microcrystal foam heat-insulation plate by aid of industrial red mud - Google Patents

Method for producing microcrystal foam heat-insulation plate by aid of industrial red mud Download PDF

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Publication number
CN102633426A
CN102633426A CN201110412714XA CN201110412714A CN102633426A CN 102633426 A CN102633426 A CN 102633426A CN 201110412714X A CN201110412714X A CN 201110412714XA CN 201110412714 A CN201110412714 A CN 201110412714A CN 102633426 A CN102633426 A CN 102633426A
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foam heat
heat
insulating board
crystallization
crystallite
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赵保华
邹辞阳
赵玉岭
梁东成
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ZIBO YUJING NEW MATERIALS TECHNOLOGY CO LTD
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ZIBO YUJING NEW MATERIALS TECHNOLOGY CO LTD
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/50Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57Improving the yield, e-g- reduction of reject rates

Abstract

The invention discloses a method for producing microcrystal foam heat-insulation plate by the aid of industrial red mud. According to the method for producing the microcrystal foam heat-insulation plate, the resourceful industrial red mud is used as a main raw material, and auxiliary raw materials mainly include quartz sand, calcium stone powder, industrial barium carbonate, industrial soda, industrial sodium borate, industrial aluminum oxide, zinc oxide, a clarifying agent and the like. The method has the advantages that the microcrystal foam heat-insulation plate has excellent physical and chemical performances and is environment-friendly, a production technical process of the microcrystal foam heat-insulation plate is applicable to the technical process of an assembly line, the raw materials are abundant, cost is low, crystallization time and foaming time are short, production efficiency is high, energy is saved, resources are comprehensively and effectively utilized, and the like.

Description

A kind of method of utilizing industrial red mud to produce the crystallite foam heat-insulating board
Technical field:
The crystallite foam heat-insulating board is a kind of silicate product among the present invention, belongs to the building materials industry product, particularly relates to a kind of method of utilizing industrial red mud to produce the crystallite foam heat-insulating board.
Background technology:
1, China's industry red mud present situation
Red mud is produced sorrel, the powder mud shape strong basicity industrial solid wastes material of discharging behind the aluminum oxide from bauxite.It is big generally to contain the red stone amount; Outward appearance is similar with redness of the skin or complexion earth; Thereby gain the name, be requisite by product in the aluminum oxide production process, 1 ton of aluminum oxide of every production is 1.0 ~ 1.8 tons of red muds of output simultaneously; And the red mud of discharging is mainly taked to build a dam in the open and is stored up processing, not only wastes the soil but also very easily cause " reentrainment of dust " contaminate environment.In producing alumina process, product per ton needs 2.3 tons in bauxite, caustic soda 60-100 kilogram, lime 30-50 kilogram, produces 1.5 tons in waste residue.Long-term production can accumulate the above abandoned mine slag of tens million of tons.A large amount of abandoned mine slags have occupied hundreds of hectares of soils, havoc ecotope.These abandoned mine slags, promptly red mud has strong basicity (р Н>10), and every cubic metre of alkalinity can reach 6 kilograms.As mud because of Externality such as rainwater to all round the diffusion, will cause serious harm to environment.Expect 2010, China's red mud quantum of output will reach more than 4,000 ten thousand tons/year, add aggregate value method of weighting storage over the years, and its quantity surpasses 100,000,000 tons, and utilization ratio is merely about 15%.Red mud is stored up and is not only taken a large amount of soils, also is prone to cause soil alkalization and the attached liquid thereof will severe contamination downstream underground water and surface water, because a large amount of red muds is underutilized; Take a large amount of soils for a long time; Cause the soil alkalization, underground water is polluted, harm people's health.Also be the waste of resource simultaneously, seriously hindered the Sustainable development of aluminium industry.Comprehensive utilization, minimizing land seizure, the protection environment of accelerating red mud are extremely urgent.Therefore, the antiseepage of red mud dump is studied, had important practical significance solving aluminium industrial production environmental issue.
, multicellular glass and crystallite foam heat-insulating board
Multicellular glass is also claimed sintered glass; Be to be rich in the base-material of glassy phase material with cullet, mica, flyash, perlite etc.; Add an amount of whipping agent, properties-correcting agent and pulverize mixing, in particular mold, have a large amount of evenly porous materials of pores through a kind of inside that preheating, fusion, foaming, cooling, annealing etc. are processed.The multicellular glass production application; Part has solved domestic refuse such as cullet, flyash and industrial residue rationally utilizes problem; A kind of light material of excellent performance is provided for the construction work industry simultaneously; Slow down environmental pollution to a certain extent, played the effect of environmental protection, had the environmental protection building material of good social effect and economic benefit.
The development of China's multicellular glass is than later, and up to the 80's, more domestic scientific and technical personnel bring into use cullet Development and Production multicellular glass; And obtain certain achievement; In this 30 years development process, Chinese development with developed multiple foam glass product, but the multicellular glass ubiquity quality problems such as physical strength is low, thermal-shock resistance difference on the whole; Big limitations its widespread use on building decoration and heat insulating; Cause domestic Foam Glass Industry Development slow, strengthen the scientific research investment dynamics, further improve the physicochemical property of foam glass product; Expanding its range of application, is to demand urgently at present dealing with problems and the trend of researching and developing from now on.
Multicellular glass is widely used abroad already, and has brought into play positive effect in a lot of fields, especially on construction industry.In Europe, area such as U.S.A, day and national multicellular glass is by mass production and widespread use; Wherein glass industry developed countries such as the U.S., Russia, Britain, Hungary, France, Czech, Japan, Germany have become the main production of multicellular glass, consumption, big export country; These countries have accumulated many experiences and technological achievement in the multicellular glass research and development are produced, and production technique is also constantly being improved and development.In recent decades, countries in the world have been developed colored acoustic foams glass, lamination multicellular glass, heat resistanceheat resistant radiation multicellular glass, building heat preservation multicellular glass or the like again.Though domestic production multicellular glass is main raw material with industrial cullet generally; Cost is lower; Be beneficial to environment protection; But because the shortcoming of low, the thermal-shock resistance difference of physical strength is limited to it as multifunctional material and materials for wall popularization and application, simultaneously also for the scientific and technical personnel that will be correlated with from now on clear and definite direction.
Multicellular glass and sytull have premium properties separately; A kind of New Building Materials of both advantages are the crystallite foam heat-insulating boards, and the crystallite foam heat-insulating board is that a kind of its inside has glassy phase, crystal mutually and be uniformly distributed with complex phase solid material such as a large amount of micro-bubble bodies.
The crystallite foam heat-insulating board is a kind of new green environment protection type materials for wall; It is a kind of countless small even connections or sealing pore and have ad hoc structure shape crystal lightweight, HS complex phase solid material mutually of in vitreum, being covered with; Its characteristic density is little, intensity is high, thermal conductivity is little, fire prevention, nontoxic, do not have radioactivity, corrosion-resistant, can process etc., have premium propertiess such as insulation, heat insulation, sound absorption, protection against the tide, fire prevention.Relatively tradition has character such as in light weight, HS, heat-insulation and heat-preservation, sound-absorbing noise control with brick, belongs to the environmental protection and energy saving material, improves structural quality greatly, alleviates deadweight, reduces the building foundation cost, is a kind of present ideal equivalent material of knowing.
The crystallite foam heat-insulating board is a kind of insulation of superior performance, heat insulation, sound absorption, protection against the tide, fire prevention, the high-strength novel environmental-friendly construction material of light weight; Good physicochemical properties such as it has the physical strength height, thermal conductivity is little, thermal property is stable, anti-combustion, indeformable, durable, heatproof, anti-rotten, anti-oxidant, acid and alkali-resistance, nontoxic, "dead", easy processing; With its weather resistance, security, safety, good chemicalstability; In the fields such as, high temperature insulating moistureproof, heat-resisting, freeze proof, low temperature insulation, moistureproof engineering, sound-absorbing engineering at energy-saving heat preserving, sound absorption noise control, corrosion resistant in occupation of more and more important position; And it is as a kind of new construction material; With multi-functionals such as energy-saving and environmental protection, safety, decorations simultaneously and deposit; Belong to country and advocate the industry of encouraging and supporting, have the vast market development prospect.
The crystallite foam heat-insulating board adopts the production technology of cleaning, does not produce pollutent in the production process, and firing temperature is low; Energy consumption is low; Production efficiency is high, and can utilize the broken waste material of mineral products as producing desired raw material in a large number, turns waste into wealth; Save natural resources, believe that the crystallite foam glass plate will can be widely used in all respects in people's daily life with the ecological, environmental protective theory of its unique superior physicochemical property and " safety, healthy, health ".
Pass through unremitting effort for many years, overcome all difficulties, invented and utilized industrial red mud to produce micro crystal material---crystallite foam heat-insulating board, crystallite brick or the like series product.Explore a resource-effective permanent mechanism for industrial red mud Ecological Industrial industrialized development recycling economy, realized the road of the win-win of corporate environment, social environment, economic benefit.The problem of complex utilization of red mud is one of difficult problem of world today's industrial solid castoff comprehensive utilization; This invention is that alumina industry is built resource-conserving, environmentally friendly enterprise lays a good foundation, and the comprehensive utilization of aluminium industrial residue is had important demonstration meaning.
Summary of the invention:
A kind of purpose of utilizing industrial red mud to produce the method for crystallite foam heat-insulating board of the present invention provides a kind of method of utilizing industrial red mud to produce the crystallite foam heat-insulating board to the problems referred to above exactly, utilizes industrial red mud to be main raw material, utilizes Al 2O 3-CaO-SiO 2Crystalline phase figure according to specific prescription, mixes several kinds of raw material weighing; Drop into equably continuously after stirring in the fusing kiln, flow out the glass metal stock column from fusing kiln discharge port and directly become particle frit material with the cold water shrend, utilize drying line to dry particle frit material after; Be ground into the material powder of 30~200 order fineness with disintegrating apparatus; Add quantitative whipping agent then, in mixing machine, mix, utilize the compression moulding in mould of easy pressing device; Together put into the crystallization kiln together with mould and carry out the processing of rapid crystallization foaming heat by certain temperature schedule; The product that comes out after the demoulding is crystallite foam heat-insulating board blank flat, carries out the grinding and polishing cutting process then, is the crystallite foam heat-insulating board.It selects industrial red mud for use is main raw material, can use no or little MOX, and its product colour can add tinting material adjustment as required; This kind suitability for industrialized production reduces temperature of fusion greatly; Reduce crystallization and blowing temperature, shorten crystallization and foamed heat insulating time, raise labour productivity; Save the energy, and then reduce product cost significantly.
A kind of method of utilizing industrial red mud to produce the crystallite foam heat-insulating board of the present invention; The physical properties of the industrial red mud of selecting for use: 0.088~0.25 millimeter of particle diameter; Proportion 2.7~2.9, unit weight 0.8~1.0,1200~1250 ℃ of fusing points; Main chemical compositions is inorganic nonmetal silico-aluminate, the oxide compound of iron, the oxide compound of calcium, comprising SiO 2, Fe 2O 3, FeO, CaO, Na 2O, k 2O, MgO etc., its Chemical Composition are SiO 219%, Al 2O 38.53%, Fe 2O 316.61%, CaO 43%, Na 2O 2.45%, etc., it is low silicon, high calcium, high ferro, and is more favourable to crystallite foam heat-insulating board ratio of components
A kind of method of utilizing industrial red mud to produce the crystallite foam heat-insulating board of the present invention, its prescription and production technique comprise the following steps:
1. mixing raw material: raw material is mixed by special formulation with suitable granularity, weight percent, puddle evenly:
Industry red mud granularity 0.08~0.5mm 25~60%
Calcite in powder granularity 0.1~0.7mm 0~8%
Quartz sand size 0.1~0.3mm 30~50%
Yellow soda ash 0~5.5%
Borax 0~3%
Aluminum oxide 0~5%
Barium carbonate 1~5%
Zinc oxide 0~5%
Finings 0~1%
Annotate: red stone that itself is contained in the industrial red mud and iron protoxide generally need not add tinting material than higher, and the oxide compound that so just makes full use of the iron that itself is contained in the industrial red mud is as tinting material;
2. high temperature melting: above-mentioned mixing raw material is put into glass furnace be fused into glass metal, 1380~1500 ℃ of temperature of fusion;
3. shrend: glass metal is flowed in the tank, and shrend becomes the particulate material of diameter 0~6 mm;
4. oven dry is pulverized: above-mentioned particulate material is dried with drying plant, be ground into fineness 30~200 powder materials with disintegrating apparatus then;
5. mix: above-mentioned powder is directly sent in the mixing equipment and added certain amount of foaming agent, mix, for use;
6. crystallization and foaming heat are handled: will the above-mentioned powder that mixes pack in the mould, put into crystallization foaming kiln and carry out crystallization and foaming heat processing, 750~1050 ℃ of crystallization and blowing temperatures, crystallization and foamed heat insulating time 10~60 minutes;
7. annealing kiln discharge: directly annealing in the crystallization foaming kiln is annealed to 150~200 ℃ of temperature, 3~10 hours time, kiln discharge cooling;
8. the demoulding: is the work in-process in the mould that crystallite foam heat-insulating board blank takes out, and places crystallite foam heat-insulating board blank zone, to be processed;
9. process and packing: crystallite foam heat-insulating board blank is cut mill, thrown and cut processing treatment, be packaged as finished product, for sale.
A kind of method of utilizing industrial red mud to produce the crystallite foam heat-insulating board of the present invention, its production technique divide four to go on foot greatly: the first step is produced qualified crystallite frit material; Add quantitative whipping agent in the powder after the second step oven dry is pulverized and mix; The 3rd step crystallization foaming kiln is pressed the specified temp system, the controlled crystallization and the crystallite foam heat-insulating board that foams out; The 4th step was mill cutting process and packing.The first step is exactly after mixing the raw material stirring of specific composition, through handling equipment and feeding equipment, continuously evenly to drop in the melt tank furnace, and the glass metal stock column that comes out is quenched into particulate material with cold water; Second step was exactly to utilize disintegrating apparatus these particulate material oven dry and having dried the microcrystal grain material, processed fineness 30~200 purpose crystallite material powder, directly sent into then to add quantitative whipping agent in the mixing machine and mix; The 3rd step was put into mould and compacting evenly according to after producing the product thickness weighing, put into crystallization foaming kiln and handled by specified temp system crystallization foaming heat, and thermal treatment finishes, and the demoulding obtains crystallite foam heat-insulating board blank; The 4th step was carried out processing treatment such as mechanical grinding and polishing, cutting to crystallite foam heat-insulating board blank, through the product that is up to the standards, was crystallite foam heat-insulating board finished product after the packing.This production technology characteristic is: the one, and the production of crystallite frit; The 2nd, flouring technology; The 3rd, add whipping agent and mix and adorn mould, this step has determined quality product and specification, influences product percent of pass, requires the powder of dress mould necessarily even; The 4th, controlled crystallization and foaming heat are handled; Promptly through specific temperature schedule control microcrystal size, gas release and size thereof; And then determined crystallite foam heat-insulating board performance; Be a most key step, adopt rapid sintering technique, very different with common entire body micro-crystal board material and regular foam glass; The 5th, the grinding and polishing cutting process because product weight is low weight, is convenient to transportation, relatively is suitable for the robotization production-lines.
Description of drawings:Fig. 1 utilizes industrial red mud to produce the method flow diagram of crystallite foam heat-insulating board for the present invention is a kind of.By raw material 1, mix to carry 2, fusing 3, shrend 4, oven dry 5, grinding 6, whipping agent 7, mix 8, weighing goes into that mould 9, crystallization and foaming heat handle 10, annealing 11, demoulding blank 12, cut mill 13, check 14, packing 15, finished product 16 and form.
Crystallite foam heat-insulating board with the inventive method production; Its internal structure is made up of glassy phase, crystal and pore three parts, and the structure principal crystalline phase is mainly β-wollastonite, and principal crystalline phase content accounts for 15~50%; Glassy phase, crystal phase and a large amount of small pore weave in; Improved the physical strength of material greatly, expanded regular foam glass applications limitation, the physical and chemical index of this kind crystallite foam heat-insulating board:
Unit weight: 820~1350 kg/m 3Water-intake rate: 3~22 vol%
Ultimate compression strength: 7~42 MPa folding strengths: 5~38 MPa
Heat resisting temperature: 450~820 ℃ of thermal conductivitys: 0.1~0.5 W/mk
The present invention is a kind of to utilize industrial red mud to produce the method for crystallite foam heat-insulating board, utilizes resourceful industrial red mud to be main raw material, can with use MOX less; Reduce raw materials cost greatly, micritization and foaming process carry out simultaneously, directly get into annealing process then; But continuous production, thus enhance productivity, and output improves; Save the energy, improve the business economic benefit.
Embodiment
are done below in conjunction with embodiment and are further described.
Embodiment one
Industry red mud powder 44% calcite in powder 5% silica sand 40%
Barium carbonate 3% yellow soda ash 3.5% borax 1.8%
Zinc oxide 1.2% aluminum oxide 1.2% finings 0.3%
Above-mentioned raw materials mixed puddle evenly, put into 1480 ℃ of temperature of smelting furnace warp and be fused into glass metal, become the particulate material below 6 mm through shrend again; After the drying plant oven dry, directly be ground into fineness 40 order crystallite powders, send in the mixing equipment then; And the adding certain amount of foaming agent, mix the dress mould of weighing; Put into crystallization foaming kiln internal heating to 980 and ℃ carry out controlled micritization and handle with foaming heat, 20 minutes crystallization foamed heat insulating time, directly annealing is slow then cools off; Be cooled to 150 ℃, 8 hours time, kiln discharge is after the demoulding, grinding and polishing, cutting obtain black crystallite foam heat-insulating board.
Embodiment two
Industry red mud powder 46% calcite in powder 5% silica sand 42%
Barium carbonate 3% yellow soda ash 1.0% borax 2.2%
Aluminum oxide 0.5% finings 0.3%
Above-mentioned raw materials mixed puddle evenly, put into 1500 ℃ of temperature of smelting furnace warp and be fused into glass metal, become the particulate material below 6 mm through shrend again; After the drying plant oven dry, directly be ground into fineness 80 order crystallite powders, send in the mixing equipment then; And the adding certain amount of foaming agent, mix the dress mould of weighing; Put into crystallization foaming kiln internal heating to 950 and ℃ carry out controlled micritization and handle with foaming heat, 20 minutes crystallization foamed heat insulating time, directly annealing is slow then cools off; Be cooled to 180 ℃, 7 hours time, kiln discharge is after the demoulding, grinding and polishing, cutting obtain chocolate crystallite foam heat-insulating board.
Embodiment three
Industry red mud powder 51.5% silica sand 39% barium carbonate 3.2%
Yellow soda ash 2.8% borax 2.3% aluminum oxide 1.2%
Above-mentioned raw materials mixed puddle evenly, put into 1450 ℃ of temperature of smelting furnace warp and be fused into glass metal, become the particulate material below 6 mm through shrend again; After the drying plant oven dry, directly be ground into fineness 150 order crystallite powders, send in the mixing equipment then; And the adding certain amount of foaming agent, mix the dress mould of weighing; Put into crystallization foaming kiln internal heating to 900 and ℃ carry out controlled micritization and handle with foaming heat, 20 minutes crystallization foamed heat insulating time, directly annealing is slow then cools off; Be cooled to 160 ℃, 6.5 hours time, kiln discharge is after the demoulding, grinding and polishing, cutting obtain pitch black brown crystallite foam heat-insulating board.

Claims (4)

1. a method of utilizing industrial red mud to produce the crystallite foam heat-insulating board is characterized in that comprising the following steps:
Mixing raw material: raw material is mixed by special formulation with suitable granularity, weight percent, puddle evenly:
Industry red mud granularity 0.08~0.5mm 25~60%
Calcite in powder granularity 0.1~0.7mm 0~8%
Quartz sand size 0.1~0.3mm 30~50%
Yellow soda ash 0~5.5%
Borax 0~3%
Aluminum oxide 0~5%
Barium carbonate 1~5%
Zinc oxide 0~5%
Finings 0~1%
Annotate: red stone that itself is contained in the industrial red mud and iron protoxide generally need not add tinting material than higher, and the oxide compound that so just makes full use of the iron that itself is contained in the industrial red mud is as tinting material;
(2). high temperature melting: above-mentioned mixing raw material is put into smelting furnace be fused into glass metal, 1380~1500 ℃ of temperature of fusion;
(3). shrend: glass metal is flowed in the tank, and shrend becomes the particulate material of diameter 0~6 mm;
Oven dry is pulverized: above-mentioned particulate material is dried with drying plant, be ground into fineness 30~200 powder materials with disintegrating apparatus then;
Mix: above-mentioned powder is directly sent in the mixing equipment and added certain amount of foaming agent, mix, for use;
(6). crystallization and foaming heat are handled: will the above-mentioned powder that mixes pack in the mould, put into crystallization foaming kiln and carry out crystallization and foaming heat processing, 750~1050 ℃ of crystallization and blowing temperatures, crystallization and foamed heat insulating time 10~60 minutes;
(7). the annealing kiln discharge: directly annealing in the crystallization foaming kiln is annealed to 150~200 ℃ of temperature, 3~10 hours time, kiln discharge cooling;
(8). the demoulding: is the work in-process in the mould that crystallite foam heat-insulating board blank takes out, and places crystallite foam heat-insulating board blank zone, to be processed;
(9). processing, check and packing: crystallite foam heat-insulating board blank is cut mill, thrown and cut processing treatment,, be packaged as finished product through after the assay was approved, for sale.
2. a kind of method of utilizing industrial red mud to produce the crystallite foam heat-insulating board according to claim 1; It is characterized in that the selection of whipping agent; The blowing temperature of whipping agent is consistent with the micritization heat treatment process of crystallite powder with gas release, when forming a large amount of microcrystals, also is that whipping agent forms the ideal suitable condition that enriches small even bubble.
3. a kind of method of utilizing industrial red mud to produce the crystallite foam heat-insulating board according to claim 1, it is characterized in that its production technique divided for four steps greatly: the first step is produced qualified crystallite frit material; Add quantitative whipping agent in the powder after the second step oven dry is pulverized and mix; The 3rd step crystallization foaming kiln is pressed the specified temp system, the controlled crystallization and the crystallite foam heat-insulating board that foams out; The 4th step was mill cutting process and packing; The first step is exactly after mixing the raw material stirring of specific composition, through handling equipment and feeding equipment, continuously evenly to drop in the melt tank furnace, and the glass metal stock column that comes out is quenched into particulate material with cold water; Second step was exactly to utilize disintegrating apparatus these particulate material oven dry and having dried the microcrystal grain material, processed fineness 30~200 purpose crystallite material powder, directly sent into then to add quantitative whipping agent in the mixing machine and mix; The 3rd step was put into mould and compacting evenly according to after producing the product thickness weighing, put into crystallization foaming kiln and handled by specified temp system crystallization foaming heat, and thermal treatment finishes, and the demoulding obtains crystallite foam heat-insulating board blank; The 4th step was carried out processing treatment such as mechanical grinding and polishing, cutting to crystallite foam heat-insulating board blank, through the product that is up to the standards, was crystallite foam heat-insulating board finished product after the packing; This production technology characteristic is: the one, and the production of crystallite frit; The 2nd, flouring technology; The 3rd, add whipping agent and mix and adorn mould, this step has determined quality product and specification, influences product percent of pass, requires the powder of dress mould necessarily even; The 4th, controlled crystallization and foaming heat are handled; Promptly through specific temperature schedule control microcrystal size, gas release and size thereof; And then determined crystallite foam heat-insulating board performance; Be a most key step, adopt rapid sintering technique, very different with common entire body micro-crystal board material and regular foam glass; The 5th, the grinding and polishing cutting process because product weight is low weight, is convenient to transportation, relatively is suitable for the robotization production-lines.
4. a kind of method of utilizing industrial red mud to produce the crystallite foam heat-insulating board according to claim 1, it is characterized in that its Production Flow Chart by raw material 1, mix carry 2, fusing 3, shrend 4, oven dry 5, grinding 6, whipping agent 7, mix 8, weighing goes into that mould 9, crystallization and foaming heat handle 10, annealing 11, demoulding blank 12, cut mill 13, check 14, packing 15, finished product 16 and form; With the crystallite foam heat-insulating board that the inventive method is produced, its internal structure is made up of glassy phase, crystal and pore three parts, and the structure principal crystalline phase is mainly β-wollastonite, its physical and chemical index:
Unit weight: 820~1350 kg/m 3Water-intake rate: 3~22 vol%
Ultimate compression strength: 7~42 MPa folding strengths: 5~38 MPa
Heat resisting temperature: 450~820 ℃ of thermal conductivitys: 0.1~0.5 W/mk.
CN201110412714XA 2011-12-13 2011-12-13 Method for producing microcrystal foam heat-insulation plate by aid of industrial red mud Pending CN102633426A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102838282A (en) * 2012-09-28 2012-12-26 刘立强 Method for preparing high-strength foam glass by utilizing red mud and waste glass
CN102838280A (en) * 2012-09-28 2012-12-26 山东建筑大学 Method for preparing foam glass ceramics by utilizing red mud and waste glass
CN103373815A (en) * 2012-12-31 2013-10-30 河南理工大学 Bayer process red mud porous glass ceramic and preparation method thereof
CN103922792A (en) * 2014-04-23 2014-07-16 袁利民 Method of producing light honeycomb material by melting and foaming red mud at high temperature
CN104230170A (en) * 2013-06-07 2014-12-24 北京中伦基业科技发展有限公司 Manufacturing method of sintering-process foamed microcrystalline material product
CN105967539A (en) * 2016-05-04 2016-09-28 淄博万方窑炉工程有限责任公司 Light-weight and high-strength red mud heat insulation material and preparation method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102838282A (en) * 2012-09-28 2012-12-26 刘立强 Method for preparing high-strength foam glass by utilizing red mud and waste glass
CN102838280A (en) * 2012-09-28 2012-12-26 山东建筑大学 Method for preparing foam glass ceramics by utilizing red mud and waste glass
CN102838282B (en) * 2012-09-28 2015-02-25 刘立强 Method for preparing high-strength foam glass by utilizing red mud and waste glass
CN103373815A (en) * 2012-12-31 2013-10-30 河南理工大学 Bayer process red mud porous glass ceramic and preparation method thereof
CN104230170A (en) * 2013-06-07 2014-12-24 北京中伦基业科技发展有限公司 Manufacturing method of sintering-process foamed microcrystalline material product
CN104230170B (en) * 2013-06-07 2017-06-16 北京中伦基业科技发展有限公司 A kind of preparation method of sintering process foaming micro crystal material product
CN103922792A (en) * 2014-04-23 2014-07-16 袁利民 Method of producing light honeycomb material by melting and foaming red mud at high temperature
CN103922792B (en) * 2014-04-23 2016-03-16 袁利民 A kind of method utilizing red mud high-temperature fusion foam production light weight cellular material
CN105967539A (en) * 2016-05-04 2016-09-28 淄博万方窑炉工程有限责任公司 Light-weight and high-strength red mud heat insulation material and preparation method thereof

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Application publication date: 20120815