CN102515553A - Method for producing microcrystalline foam thermal-insulation sheet material through utilizing industrial lithium tailings - Google Patents
Method for producing microcrystalline foam thermal-insulation sheet material through utilizing industrial lithium tailings Download PDFInfo
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- CN102515553A CN102515553A CN2011104127690A CN201110412769A CN102515553A CN 102515553 A CN102515553 A CN 102515553A CN 2011104127690 A CN2011104127690 A CN 2011104127690A CN 201110412769 A CN201110412769 A CN 201110412769A CN 102515553 A CN102515553 A CN 102515553A
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Abstract
The invention relates to a method for producing a microcrystalline foam thermal-insulation sheet material through utilizing industrial lithium tailings, which adopts industrial lithium tailings having abundant resources as a main raw material to produce the microcrystalline foam thermal-insulation sheet material. Auxiliary raw materials comprise quartz sand, calcium powder, industrial barium carbonate, industrial soda ash, industrial borax, zinc oxide, a clarificant, a coloring agent and the like. The microcrystalline foam thermal-insulation sheet material has the advantages of excellent physical and chemical performances, environmental protection, suitableness for an industrial streamline technology flow in the production technology process, abundant raw materials, low cost, short crystallization foaming time, high production efficiency, energy saving, comprehensive and effective utilization of resources, and the like.
Description
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 lithium mine tailing to produce the crystallite foam heat-insulating board.
Background technology:
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 ".
Summary of the invention:
A kind of purpose of utilizing industrial lithium mine tailing to produce the method for crystallite foam heat-insulating board of the present invention provides a kind of method of utilizing industrial lithium mine tailing to produce the crystallite foam heat-insulating board to the problems referred to above exactly, utilizes industrial lithium mine tailing 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 lithium mine tailing 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 lithium mine tailing to produce the crystallite foam heat-insulating board of the present invention, the lithium mine tailing main chemical compositions of selecting for use is inorganic lithium aluminosilicate.Comprising SiO
2, Fe
2O
3, K
2O, Na
2O, TiO
2, P
2O
5Deng, its Chemical Composition is SiO
270%, Al
2O
317%, Fe
2O
30.75%, P
2O
50.85%, K
2O 2%, Na
2O 4.1%, Li
2O 1.1% and multiple REE such as Ni, Ta etc., it is high silicon, high alumina, low iron, is rich in REE, the crystallite foam heat-insulating board is formed very favourable.
A kind of method of utilizing industrial lithium mine tailing 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:
Lithium mine tailing granularity 0.1～0.7mm 28～50%
Lime carbonate granularity 0.1～0.7mm 20～38%
Quartz sand size 0.1～0.5mm 15～30%
Yellow soda ash 2.0～7.5%
Borax 0～3%
Barium carbonate 0.5～6.5%
Zinc oxide 0～6.0%
Finings 0～1%
Tinting material 0～6%
Wherein said toning agent comprises Cr
2O
3, CoO, CuO, nickel oxide, nickel protoxide, red stone, manganese oxide, cadmium red, cadmium yellow, selenium powder;
2. high temperature melting: above-mentioned mixing raw material is put into glass furnace be fused into glass metal, 1420～1550 ℃ 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, 3～8 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 lithium mine tailing 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 lithium mine tailing 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 lithium mine tailing to produce the method for crystallite foam heat-insulating board, utilizes resourceful industrial lithium mine tailing 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
Lithium mine tailing 46% Paris white 27% silica sand 18%
Barium carbonate 4.5% yellow soda ash 3.5% borax 0.5%
Finings 0.5% tinting material 0%
Above-mentioned raw materials mixed puddle evenly, put into 1550 ℃ 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 50 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 960 and ℃ carry out controlled micritization and handle with foaming heat, 30 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 shallow sapphirine crystallite foam heat-insulating board.
Embodiment two
Lithium mine tailing 35% Paris white 32% silica sand 24%
Barium carbonate 4.0% yellow soda ash 4.0% borax 0.5%
Finings 0.5% tinting material 0%
Above-mentioned raw materials mixed puddle evenly, put into 1510 ℃ 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 100 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 940 and ℃ carry out controlled micritization and handle with foaming heat, 25 minutes crystallization foamed heat insulating time, directly annealing is slow then cools off; Be cooled to 180 ℃, 7.5 hours time, kiln discharge is after the demoulding, grinding and polishing, cutting obtain dark sapphirine crystallite foam heat-insulating board.
Embodiment three
Lithium mine tailing 42% Paris white 31% silica sand 19%
Barium carbonate 3.5% yellow soda ash 3.5% borax 0.5%
Finings 0.5% tinting material 0%
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 120 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 light blue jade green crystallite foam heat-insulating board.
Claims (4)
1. a method of utilizing industrial lithium mine tailing to produce the crystallite foam heat-insulating board is characterized in that comprising the following steps:
(1) mixing raw material: the following granularity of raw material, weight percent are mixed by special formulation, puddle evenly:
Lithium mine tailing granularity 0.1～0.7mm 28～50%
Lime carbonate granularity 0.1～0.7mm 20～38%
Quartz sand size 0.1～0.5mm 15～30%
Yellow soda ash 2.0～7.5%
Borax 0～3%
Barium carbonate 0.5～6.5%
Zinc oxide 0～6.0%
Finings 0～1%
Tinting material 0～6%
Wherein said toning agent comprises Cr
2O
3, CoO, CuO, nickel oxide, nickel protoxide, red stone, manganese oxide, cadmium red, cadmium yellow, selenium powder;
(2). high temperature melting: above-mentioned mixing raw material is put into smelting furnace be fused into glass metal, 1420～1550 ℃ 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 lithium mine tailing 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 lithium mine tailing 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 lithium mine tailing 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.
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|---|---|---|---|
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| CN103979795A (en) * | 2014-05-16 | 2014-08-13 | 北京璞晶科技有限公司 | Method for producing micro-crystal foamed glass plate by using molten slag of blast furnace and equipment used in method |
| CN104261677A (en) * | 2014-09-16 | 2015-01-07 | 新疆大学 | Method for preparing microcrystalline glass from lithium beryllium tailings |
| CN108191231A (en) * | 2018-01-31 | 2018-06-22 | 武汉理工大学 | A kind of method that foam thermal insulation glass ceramic material is prepared using lithium tailings |
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| CN108191230A (en) * | 2018-01-31 | 2018-06-22 | 武汉理工大学 | A kind of method that coloured foam class ceramic material is prepared using lithium tailings |
| CN109053150A (en) * | 2018-09-07 | 2018-12-21 | 江西庾岭晶硕新材料有限公司 | A kind of production method of lithium slag light ceramic plate |
| CN108840710B (en) * | 2018-09-13 | 2021-03-19 | 唐山庄信科技有限公司 | Method for producing foamed ceramic building thermal insulation material by using lithium tailings and steel slag tailings |
| CN108840710A (en) * | 2018-09-13 | 2018-11-20 | 唐山庄信科技有限公司 | Utilize the method for lithium tailing and steel slag tailing production foamed ceramic building thermal insulation material |
| CN109678553A (en) * | 2019-01-29 | 2019-04-26 | 唐山燕山钢铁有限公司 | The preparation method of lithium tailing exterior insulation |
| CN111499205A (en) * | 2020-04-14 | 2020-08-07 | 江西鼎盛新材料科技有限公司 | Microcrystalline foam heat-insulation and decoration integrated board sintered by lepidolite tailings at one time |
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| CN111960675A (en) * | 2020-08-28 | 2020-11-20 | 江西鼎盛新材料科技有限公司 | Formula and preparation method for producing microcrystalline glass by using lepidolite tailing float process |
| CN114436536A (en) * | 2020-11-02 | 2022-05-06 | 毛闻达 | Spodumene microcrystalline foam glass and preparation method thereof |
| CN116715506A (en) * | 2023-06-29 | 2023-09-08 | 江西唯美陶瓷有限公司 | Ceramic blank, ceramic brick and preparation method thereof based on lithium slag |
| CN116715506B (en) * | 2023-06-29 | 2024-04-26 | 江西唯美陶瓷有限公司 | Ceramic blank, ceramic brick and preparation method thereof based on lithium slag |
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Application publication date: 20120627 |