CN102557452A - Formula and production process for producing microcrystalline board with feldspar - Google Patents
Formula and production process for producing microcrystalline board with feldspar Download PDFInfo
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- CN102557452A CN102557452A CN2011104385391A CN201110438539A CN102557452A CN 102557452 A CN102557452 A CN 102557452A CN 2011104385391 A CN2011104385391 A CN 2011104385391A CN 201110438539 A CN201110438539 A CN 201110438539A CN 102557452 A CN102557452 A CN 102557452A
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Abstract
The invention relates to a formula and a production process for producing a microcrystalline board with feldspar. The formula comprises rich feldspar in the earth as a main raw material, proper amounts of quartz sand and heavy calcium carbonate as well as auxiliary raw materials, which mainly comprise industrial barium carbonate, industrial sodium carbonate, industrial borax, industrial zinc oxide, a colorant, an oxidant and a clarifier. The production process mainly comprises the steps of: uniformly mixing the raw materials, placing in a melting kiln, melting at 1400-1550 DEG C to obtain vitreous body, quenching with water to obtain particles of 0-6mm, adding to a mold, entering a crystallization kiln, crystallizing and firing at 850-1180 DEG C, maintaining the crystallization heat-insulation time for 10-100min, annealing and discharging out of the kiln, demolding, grinding, polishing, cutting and packaging to obtain a microcrystalline board finished product. The production process has the characteristics of wide and easily available product raw materials, low cost, low crystallization temperature, short crystallization time, high production efficiency, high product percent of pass, energy saving and the like.
Description
Technical field:
The invention belongs to a kind of building materials industry, particularly utilize a large amount of feldspars to produce the prescription and the production technique of micro-crystal board material.
Background technology:
The felspathic present situation of China, application and purposes
Feldspar is the general name that feldspar family rock draws, and it is the aluminum silicate mineral of a type of calcic, sodium and potassium, and it has a variety of, like albite, lime feldspar, celsian-felspar, hyalophane, microline, potash feldspar, sanidine etc.Modal mineral are exactly feldspar in the earth's crust, even also common to them with meteoritic abundance on the moon.In the scope of underground 15 km deep, the shared earth's crust gross weight of feldspar reaches 60% unexpectedly.Feldspar is the staple that constitutes volcanic rock, and is also very common in rock and the sedimentogeneous rock on the turn.The common oyster white of feldspar is dyed Huang, brown, pale red, dark-grey isochrome but Chang Yin contains impurity, and between the proportion 2.56～2.76, Mohs' hardness is 6～6.5, has vitreous luster, and property is crisp, and high compression strength is arranged, and acid is had stronger chemicalstability.Mostly the potassium felspar sand color is flesh pink, and ash, white brown are also arranged.Albite is white, ash and light yellow, and lime feldspar is a white or light grey.The feldspar that is rich in potassium or sodium is mainly used in ceramic industry, glass industry and porcelain enamel industry; The feldspar that contains rare elements such as rubidium and caesium can be used as the raw mineral materials that extracts these elements; The feldspar that color and luster is beautiful can be used as decorates building stones and semiprecious stone.
The feldspar Chemical Composition is silicon-dioxide (SiO2), aluminum oxide (Al2O3), red stone (Fe2O3), potassium oxide (K2O), sodium oxide (Na2O), quicklime (CaO), barium oxide (BaO) etc., and wherein staple is silicon-dioxide (SiO2) content 60～75% and aluminum oxide (Al2O3) content 14～23%.Albite is felspathic a kind of, is common feldspar mineral, is the aluminosilicate (NaAlSi3O8) of sodium.Albite is generally glassy crystal, can be colourless, also white, yellow, red, green or black can be arranged, and albite is mainly used in makes pottery, soap, ceramic tile, floor, glass, grinding materials and grinding tool etc., on pottery, is mainly used in glaze.
The present invention makes full use of feldspar abundant on the earth, promotes its industrial value a practicable method is provided.
The micro-crystal board material state of the art
Micro-crystal board material is claimed glass-ceramic again, has good physicochemical property, and its Mohs' hardness is 5.5～8, and ultimate compression strength is 360～680MPa, and folding strength is 30～70MPa, and resistance to impact shock is 2.0～4.8Kg/cm
2, glossiness is 80～110 gloss unit, the coefficient of expansion is (10～80) * 10
-7/
0C, water-intake rate<0.05%; Has good acid-proof alkaline; Therefore be widely used as building and ornament materials, table sheet, tubing, foundry goods, sealing member etc.; Plate product surface after polishing has magnificent, graceful texture and the sparkling and crystal-clear soft gloss of sense organ, more receives architectural design circle and owner's favor.Exactly because have that these color and lusters are attractive in appearance, appearance is magnificent, wear-resistant, do not fade, corrosion-resistant, safety, environmental protection, health, property such as self-cleaning; Make micro-crystal board material become 21st century lithotome and the best substitute products of ceramic veneer; Become the environment-friendly architecture ornament novel material of international popular; Be widely used in the buildingss such as medium-to-high grade level hotel, restaurant, market, office building, station, airport, dwelling house, be used on decoration and the market of inner, external wall, ground, table top public places such as other numerous medium-to-high grade building such as hotel, market, post office, telecommunication authority, hospital, bank, electric power, urban construction.
In Europe, the United States, Russia, day country, the research of micro-crystal board material starting early, micro-crystal board material the seventies comes into vogue, and has only the more advanced country of minority industry such as the U.S., the FSU and a day instinct to organize suitability for industrialized production at present, they are with pure chemistry raw material SiO
2, Al
2O
3, CaO etc. are formulated, and its working method mainly contains two kinds, and a kind of is rolling process, earlier with micro-crystal board material raw material mechanical pressing, and then carries out crystallization; Another kind is a water quenching, earlier the micro-crystal board material raw material is fused into the glass slag charge, and mechanical pressing or utilize the saggar moulding carries out crystallization at last again.At initial period, after product mainly uses slag and other frit mixed melting, adopt the rolling process explained hereafter to process dull and stereotyped sintered glass ceramics, behind rubbing down, make it to have the sheet material of beautiful decorative pattern again, be used for building decoration.
Micro-crystal board material adopts the production technology of cleaning; Do not produce pollutent in the production process, and can utilize the broken waste material of mineral products in a large number, turn waste into wealth as producing desired raw material; Save natural resources, so just regarded as " green building material of Sustainable development " as far back as 1987 by international environmental protection organization.Two during the last ten years; Micro-crystal board material is admitted by the building trade of countries in the world with the environmental-protecting performance of the aesthetic feeling of its unique superior, high-grade texture, physical and chemical index and " safety, healthy, health ", and is widely used in all kinds of senior venues such as subway, hotel, restaurant, airport, commercial mansion.
Summary of the invention:
The present invention utilizes feldspar to produce the prescription and the production technique of micro-crystal board material, utilizes a large amount of feldspars, after simple coarse crushing processing; Being used for producing the prescription and corresponding production technique of micro-crystal board material, is exactly to be directed against the abundant feldspar resource of the earth as main raw material, is equipped with appropriate amount of quartz sand, coarse whiting; Add the part auxiliary material, can use no or little MOX, produce micro-crystal board material; And color can adjust according to adding tinting material, reduces production costs greatly, reduces crystallization temperature; Shorten the crystallization soaking time, raise labour productivity, save the energy.
The present invention utilizes feldspar to produce the prescription and the production technique of micro-crystal board material, utilizes resourceful feldspar, after simple the pulverizing, is main raw material, and the feldspar Chemical Composition is silicon-dioxide (SiO
2), aluminum oxide (Al
2O
3), red stone (Fe
2O
3), potassium oxide (K
2O), sodium oxide (Na
2O), quicklime (CaO), barium oxide (BaO) etc., wherein staple is silicon-dioxide (SiO
2) content 60～75% and aluminum oxide (Al
2O
3) content 14～23%; Be equipped with appropriate amount of quartz sand, coarse whiting; Produce the prescription and the production technique of micro-crystal board material; Auxiliary material mainly contains industrial potassium titanate, calcined soda for industry, industrial borax, industrial zinc oxide, tinting material, oxygenant, finings etc.; These auxiliary materials are reasonably arranged in pairs or groups and are used for producing micro-crystal board material very favourablely, and especially the selection of tinting material is used with an amount of, can produce the serial color micro-crystal board material of white, beautiful cyan, green, blueness, grey, yellow, black or the like.
The present invention utilizes feldspar to produce the prescription and the production technique of micro-crystal board material, utilizes feldspar to comprise the following steps: for the prescription and the production technique of main material production micro-crystal board material
1. mixing raw material: raw material is mixed by following granularity, weight percent, puddle evenly:
Feldspar granularity 0.1～1.2mm 25～46%
Quartz sand size 0.1～0.7mm 18～35%
Coarse whiting granularity 0.1～2.2mm 16～33%
Calcined soda for industry 0～5%
Industrial borax 0～5.5%
Industrial potassium titanate 0～6.5%
Industry zinc oxide 0～6.5%
Finings 0～1%
Oxygenant 0～2.5%
Tinting material 0～6%
Wherein said tinting material comprises Cr
2O
3, CoO, CuO, nickel oxide, nickel protoxide, red stone, manganese oxide, cadmium red, cadmium yellow, selenium powder etc. have the raw material of coloring effect to micro-crystal board material;
2. high temperature melting: above-mentioned mixing raw material is put into glass furnace be fused into glass metal, 1400～1550 ℃ 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. dress mould: above-mentioned pellet is packed in the mould;
5. heating crystallization: the mould of the good pellet of above-mentioned cloth is put into crystallization kiln internal heating crystallization, 850～1180 ℃ of crystallization temperatures, crystallization soaking time 10～100 minutes;
6. kiln discharge: in crystallization kiln, anneal, be annealed to 100～250 ℃ of temperature, 3～10 hours time, kiln discharge cooling;
7. the demoulding: the kiln discharge cooling is the work in-process in the mould that the crystallite hair plates takes out, and places crystallite hair plates zone, and is to be processed;
8. processing treatment: the crystallite hair plates is ground, polishes, cuts, be packaged as finished product, for sale.
This product processes adopts shrend sintering crystallization method, and shrend sintering crystallization method is specific cooperation raw material to be fused into glass metal flow out, behind the shrend compressing tablet; Become the small-particle of specified range fineness, drying is laid on the special refractory-material dies then, gets into the crystallization kiln; Accomplish the thermal treatment dominated crystallization process and become the crystallite hair plates; After the kiln discharge cooling, carry out grinding and polishing again and handle, cutting is packaged as finished product.This production technique distinctive feature is to have used the controlled crystallization and thermal treatment technology new technology of Watch glass pellet pretreatment technology and multistage operation; And use the thermal technology interface flexible adjustment system of domestic and international advanced level technological; Dwindled each the interim temperature difference in the kiln combustion process to greatest extent; Guarantee to form the minimum may command roughness index of product; And make product surface crystallized and stereoeffect reach optimum regime, thereby product each item integrated performance index is greatly improved.
Description of drawings:Fig. 1 produces the prescription and the technological process of production figure of micro-crystal board material for the present invention utilizes feldspar.By raw material 1, mix 2, fusing 3, shrend 4, go into that mould 5, crystallization handle 6, kiln discharge 7, check 8, grinding and polishing 9, cutting 10, check 11, packing 12, finished product 13 form.
Utilize feldspar to produce the prescription and the production technique of micro-crystal board material with the present invention, the micro-crystal board material of production, structure principal crystalline phase are β-wollastonite, and the mechanical property of this kind micro-crystal board material and physical and chemical index are:
Proportion 2.6～2.75 acidproof rates>98%
Morse hardness 6.0～8.5 glossiness>90 gloss unit
Tensile strength 320～420mpa water-intake rate < 0.05%
The alkaline-resisting rate of folding strength 38～62 mpa>96%
The present invention utilizes feldspar to produce the prescription and the production technique of micro-crystal board material, utilizes cheap feldspar abundant on the earth to be main raw material, need not or trace use commercial alumina and calcined soda for industry; Production high-quality micro-crystal board material reduces raw materials cost greatly, reduces crystallization temperature and shortens crystallization time; But continuous production, thus enhance productivity, and output improves; Save the energy, significantly improve business economic benefit and social benefit.
Do below in conjunction with embodiment and to further describe:
Embodiment one
Feldspar 42.31% silica sand 20.81% coarse whiting 25.39%
Industrial potassium titanate 4.19% calcined soda for industry 0.51% industrial zinc oxide 3.4%
Industrial borax 2.19% oxygenant 1% finings 0.2%
Tinting material 0%
Above-mentioned raw materials mixed puddle evenly, put into 1420 ℃ of temperature of smelting furnace warp and be fused into glass metal, become the particulate material below 6 mm through shrend again; Pack in the mould, put into crystallization kiln internal heating to 1120 and ℃ carry out crystallization, crystallization soaking time 80 minutes; Annealing cooling then; Be cooled to 200 ℃, 5 hours time, kiln discharge is after the demoulding, grinding, polishing, cutting obtain white micro-crystals sheet material finished product.
Embodiment two
Feldspar 28.53% silica sand 30.57% coarse whiting 27.27%
Industrial potassium titanate 5.55% calcined soda for industry 1.03% industrial zinc oxide 3.24%
Industrial borax 2.21% oxygenant 0.5% finings 0.1%
Tinting material 1%
Above-mentioned raw materials mixed puddle evenly, put into 1520 ℃ of temperature of smelting furnace warp and be fused into glass metal, become the particulate material below 6 mm through shrend again; Pack in the mould, put into crystallization kiln internal heating to 1180 and ℃ carry out crystallization, crystallization soaking time 40 minutes; Annealing cooling then; Be cooled to 200 ℃, 5 hours time, kiln discharge is after the demoulding, grinding, polishing, cutting obtain light yellow micro-crystal board material finished product.
Embodiment three
Feldspar 32.68% silica sand 27.46% coarse whiting 27.66%
Industrial potassium titanate 5.45% calcined soda for industry 1.10% industrial zinc oxide 3.08%
Industrial borax 2.17% oxygenant 0% finings 0.3%
Tinting material 0.1%
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; Pack in the mould, put into crystallization kiln internal heating to 1150 and ℃ carry out crystallization, crystallization soaking time 60 minutes; Annealing cooling then; Be cooled to 200 ℃, 5 hours time, kiln discharge is after the demoulding, grinding, polishing, cutting obtain light grey micro-crystal board material finished product.
Claims (4)
1. utilize feldspar to produce the prescription and the production technique of micro-crystal board material, it is characterized in that comprising the following steps:
(1) spice: raw material is mixed by following granularity, weight percent, puddle evenly:
Feldspar granularity 0.1～1.2mm 25～46%
Quartz sand size 0.1～0.7mm 18～35%
Coarse whiting granularity 0.1～2.2mm 16～33%
Calcined soda for industry 0～5%
Industrial borax 0～5.5%
Industrial potassium titanate 0～6.5%
Industry zinc oxide 0～6.5%
Finings 0～1%
Oxygenant 0～2.5%
Tinting material 0～6%
Wherein said tinting material comprises Cr
2O
3, CoO, CuO, nickel oxide, nickel protoxide, red stone, manganese oxide, cadmium red, cadmium yellow, selenium powder etc. have the raw material of coloring effect to micro-crystal board material;
(2) high temperature melting: above-mentioned mixing raw material is put into glass furnace be fused into glass metal, 1400～1550 ℃ 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) dress mould: above-mentioned pellet is packed in the mould of putting;
(5) heating crystallization: the mould of the good pellet of above-mentioned cloth is put into crystallization kiln internal heating crystallization, 850～1180 ℃ of crystallization temperatures, crystallization soaking time 10～100 minutes;
(6) annealing kiln discharge: in crystallization kiln, anneal, be annealed to 100～250 ℃ of temperature, 3～10 hours time, kiln discharge cooling;
(7) demoulding: the kiln discharge cooling is the work in-process in the mould that the crystallite hair plates takes out, and places crystallite hair plates zone, and is to be processed;
(8) processing treatment: the crystallite hair plates is ground, polishes, cuts, be packaged as finished product, for sale.
2. prescription and the production technique of utilizing feldspar to produce micro-crystal board material according to claim 1 is characterized in that the feldspar requirement is following:
Felspathic granularity is the most suitable at 0.1～1.2mm;
Its staple silicon-dioxide of feldspar (SiO
2) content 60～75% and aluminum oxide (Al
2O
3) content 14～23%.
3. prescription and the production technique of utilizing feldspar to produce micro-crystal board material according to claim 1 is characterized in that shrend sintering crystallization method is specific cooperation raw material to be fused into glass metal flow out, behind the shrend compressing tablet; Become the small-particle of specified range fineness, drying is laid on the special refractory-material dies then, gets into the crystallization kiln; Accomplish the thermal treatment dominated crystallization process and become the crystallite hair plates; After the kiln discharge cooling, carry out grinding and polishing again and handle, cutting is packaged as finished product; This production technique distinctive feature is to have used the controlled crystallization and thermal treatment technology new technology of Watch glass pellet pretreatment technology and multistage operation; And use the thermal technology interface flexible adjustment system of domestic and international advanced level technological; Dwindled each the interim temperature difference in the kiln combustion process to greatest extent; Guarantee to form the minimum may command roughness index of product; And make product surface crystallized and stereoeffect reach optimum regime, thereby product each item integrated performance index is greatly improved.
4. prescription and the production technique of utilizing feldspar to produce micro-crystal board material according to claim 1, it is characterized in that its technological process of production by raw material 1, mix 2, fusing 3, shrend 4, go into that mould 5, crystallization handle 6, kiln discharge 7, check 8, grinding and polishing 9, cutting 10, check 11, packing 12, finished product 13 form; With the micro-crystal board material that production technique of the present invention is produced, the structure principal crystalline phase is β-wollastonite, and the mechanical property of this kind micro-crystal board material and physical and chemical index are:
Proportion 2.6～2.75 acidproof rates>98%
Morse hardness 6.0～8.5 glossiness>90 gloss unit
Tensile strength 320～620mpa water-intake rate < 0.05%
The alkaline-resisting rate of folding strength 38～72 mpa>96%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104385391A CN102557452A (en) | 2011-12-25 | 2011-12-25 | Formula and production process for producing microcrystalline board with feldspar |
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|---|---|---|---|
| CN2011104385391A CN102557452A (en) | 2011-12-25 | 2011-12-25 | Formula and production process for producing microcrystalline board with feldspar |
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| CN102557452A true CN102557452A (en) | 2012-07-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111470773A (en) * | 2019-12-20 | 2020-07-31 | 吉林省梓楗新型建材股份有限公司 | Method for one-time sintering of microcrystalline jade |
| CN113620607A (en) * | 2020-05-07 | 2021-11-09 | 柳晶（长春）环保科技有限公司 | Method for manufacturing microcrystalline stone plate by utilizing casting dust removal ash and prepared microcrystalline stone plate |
-
2011
- 2011-12-25 CN CN2011104385391A patent/CN102557452A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111470773A (en) * | 2019-12-20 | 2020-07-31 | 吉林省梓楗新型建材股份有限公司 | Method for one-time sintering of microcrystalline jade |
| CN113620607A (en) * | 2020-05-07 | 2021-11-09 | 柳晶（长春）环保科技有限公司 | Method for manufacturing microcrystalline stone plate by utilizing casting dust removal ash and prepared microcrystalline stone plate |
| CN113620607B (en) * | 2020-05-07 | 2023-06-13 | 柳晶（长春）环保科技有限公司 | Method for manufacturing microcrystal stone plate by using casting dust and microcrystal stone plate manufactured by method |
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Application publication date: 20120711 |