CN100516001C - Resintered fused silica brick and method of producing the same - Google Patents
Resintered fused silica brick and method of producing the same Download PDFInfo
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- CN100516001C CN100516001C CNB2007101634818A CN200710163481A CN100516001C CN 100516001 C CN100516001 C CN 100516001C CN B2007101634818 A CNB2007101634818 A CN B2007101634818A CN 200710163481 A CN200710163481 A CN 200710163481A CN 100516001 C CN100516001 C CN 100516001C
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Abstract
The invention discloses a re-sintering meltdown quartz brick and the manufacturing method thereof, and solves the problem that the fire resisting material of the prior microlite glass melt kiln flame space position deforms and cracks due to the expansion and the shrinking under the temperature changing condition so as to damage the glass melt kiln. The re-sintering meltdown quartz brick of the invention comprises the components according to the following weight parts: meltdown quartz of 50 to 60 parts with granularity of 3 to 1 mm, meltdown quartz of 10 to 20 parts with granularity of 1 to 0 mm, mineralized powder of 1 to 2 parts and caking agent of 4 to 7 parts. The invention is suitable for the fire resisting material of the microlite glass melt kiln flame space position.
Description
Technical field
The present invention relates to a kind of devitrified glass melting furnaces refractory materials, relate in particular to a kind of Resintered fused silica brick and manufacture method thereof.
Background technology
The main manufacturing plant of devitrified glass is a glass melter, devitrified glass is transparent glass-ceramics particularly, owing to have extraordinary resistance toheat and higher intensity, make devitrified glass in process of production, not only exigent melt temperature (1600 ℃), and melt temperature changes in 200 ℃ of-1600 ℃ of scopes of being everlasting, therefore, the capabilities of refractory materials to glasses melting furnace flame space requires very high.
At present, the manufacturing enterprise of China's devitrified glass has only high-quality silica brick a kind of in the selection of glasses melting furnace flame space refractory materials.Silica brick is acted upon by temperature changes SiO as refractory materials in the devitrified glass production process
2Crystal formation can change and make big, the also corresponding increase of volume change of the silica brick coefficient of expansion, make silica brick at short notice, will expand repeatedly because of volume, shrink and burst apart, cause the devitrified glass melting furnaces to damage and stop production, not only normal operation is produced in influence, and, had a strong impact on the devitrified glass quality, particularly the solar electrical energy generation devitrified glass because silica brick is fallen in the melting pool after peeling off.Therefore, the glass melter refractory materials has become the key factor of serious obstruction devitrified glass industry development.
Summary of the invention
Technical problem to be solved by this invention is the refractory materials at existing devitrified glass melting furnaces flame space position, under temperature variation, burst apart because of expanding repeatedly, shrink to be out of shape, damage the problem of glass melter, a kind of have thermostability and persistent Resintered fused silica brick and manufacture method thereof are provided.
For solving technical problem of the present invention, the present invention adopts following technical scheme:
On the one hand, the invention provides a kind of Resintered fused silica brick, its batching comprises the component of following weight part:
Fused quartz: granularity 3-1mm 50-60 part; Granularity 1-0mm 10-20 part; Granularity 325 order 30-40 parts;
Mineralising powder: 1-2 part; Binding agent: 4-7 part.
Preferably, described mineralizer is SiO
2〉=92% SILICA FUME.
Preferably, described binding agent is a silicon sol.
Preferably, described binding agent comprises low temperature bonding agent carboxymethyl Mierocrystalline cellulose: 1-2 part, high-temperature agglomerant aluminium dihydrogen phosphate: 3-5 part.
Resintered fused silica brick of the present invention is that raw material obtains through processing with the fused quartz, owing to fused quartz is that quartz sand comes through pyrotic smelting, and the SiO of fused quartz
2Crystal formation no longer varies with temperature and changes, so, the SiO of Resintered fused silica brick
2Crystal formation does not vary with temperature yet and changes; Therefore, with the refractory materials of Resintered fused silica brick of the present invention as the glasses melting furnace flame space position, in the devitrified glass production process, SiO
2Crystal formation does not change because of temperature variation, and therefore volume has good thermostability and heat-shock resistance also not because of temperature variation changes; Simultaneously, Resintered fused silica brick of the present invention is because SiO
2Content is high, even localized delamination is arranged, does not also influence the devitrified glass quality, thereby has guaranteed the normal operation of glass furnace, has solved the key factor of restriction industry development.
On the other hand, the invention provides a kind of Resintered fused silica brick manufacture method, it comprises the following steps:
A, the broken particle that the raw materials melt quartz is broken into granularity≤3mm;
It is 325 purpose fine powders that b, abrasive dust further are ground into granularity with part material;
D, batching take by weighing fused quartz, mineralising powder, the binding agent of each size range in the batching component in proportion, add water and mix;
E, ageing mixture will be prepared in the container that mixed raw materials is placed on sealing and seal up for safekeeping;
F, the moulding material injecting mould compression moulding after with ageing mixture;
G, drying are put into kiln with the adobe of moulding and are carried out drying and dehydrating;
H, the adobe that sintering is good with drying are placed in the high temperature kiln and burn till into brick.
Preferably, the SiO of described raw materials melt quartz
2〉=99.5%.
Further, among the described step a, raw material crushing is become following two size range: granularity 3-1mm and the granularity 1-0mm of granularity≤3mm.
Further, after the described step b, before the steps d, also comprise the steps,
The ferric oxide that occurs in described step a and the b process is removed in c, deironing.
Manufacture method of the present invention, with the fused quartz is raw material, after broken, abrasive dust processing, and grain composition reasonably, and after adding tackiness agent, mineralizer and water and mixing, be placed in the container of sealing and seal up for safekeeping, make raw material and tackiness agent, mineralizer carry out abundant chemical reaction, to increase the density and the cohesive force of raw material, improve the intensity of product, then, through mould molding, drying, sintering program, finish manufacturing.The Resintered fused silica brick that the inventive method is made, as the refractory materials at devitrified glass melting furnaces flame space position, in the devitrified glass production process, SiO
2Crystal formation does not change because of temperature variation, and volume does not change because of temperature variation, therefore has good thermostability, heat-shock resistance; Simultaneously, Resintered fused silica brick of the present invention is because SiO
2Content is high, even localized delamination is arranged, does not also influence the devitrified glass quality; Thereby guaranteed the ordinary production of devitrified glass kiln, solved the key factor of restriction industry development.
Description of drawings
Fig. 1 is the process flow sheet of Resintered fused silica brick manufacture method of the present invention.
Embodiment
Core of the present invention has provided a kind of Resintered fused silica brick and manufacture method thereof, in order to solve the refractory materials at existing devitrified glass melting furnaces flame space position, bursts apart because of expanding, shrinking to be out of shape under the temperature variation condition, damages the problem of glass melter.
In order to make those skilled in the art person understand the present invention program better, and above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with drawings and Examples.
Resintered fused silica brick of the present invention, its batching comprises the component of following weight part:
Fused quartz: granularity 3-1mm 50-60 part; Granularity 1-0mm 10-20 part; Granularity 325 order 30-40 parts;
Mineralising powder: 1-2 part; Binding agent: 4-7 part.
The physical and chemical index of Resintered fused silica brick of the present invention is as follows:
The raw materials melt quartz that the present invention adopts has following characteristic:
1, thermal expansivity is little, has volume stability and chemical stability preferably, SiO
2Crystal formation do not vary with temperature and change, therefore, fused quartz is not yielding under hot conditions, and is not yielding under the temperature variation yet.
2, viscosity is very big under the hot conditions, is 108 handkerchief seconds at 1530 ℃; During high temperature, anti-water eroding and flooding is good, and along with its plasticity increase of rising of temperature, fragility weakens, and folding strength in use also increases along with the rising of temperature greatly.
Therefore, fused quartz is under hot conditions, have not yielding, desirable viscosity, anti-water eroding and flooding, folding strength, the brick that makes the fused quartz manufacturing is under hot conditions, have good thermostability and persistence, as devitrified glass melting furnaces refractory materials, overcome the problem of bursting apart that existing glass melter refractory materials occurs, solved the bottleneck problem of restriction industry development.
Characteristics such as Resintered fused silica brick of the present invention, forms through high temperature process because fused quartz is a quartz sand for the raw material manufacturing forms with the fused quartz, has high temperature resistant, anti-erosion, and thermal expansivity is little, and thermal conductivity is low, and thermal shock resistance is good, and SiO
2Crystal formation no longer varies with temperature and changes, therefore, and with the refractory materials of the present invention, in the devitrified glass production process, because SiO as devitrified glass melting furnaces flame space position
2Crystal formation no longer changes, and volume also with regard to not because of temperature variation changes, therefore has good thermostability and heat-shock resistance; Simultaneously, Resintered fused silica brick of the present invention is because SiO
2Content is high, even localized delamination is arranged, does not also influence the devitrified glass quality; Thereby guaranteed the ordinary production of devitrified glass kiln, solved the key factor of restriction industry development.
Resintered fused silica brick of the present invention can be applied in the major equipment glasses melting furnace flame space of devitrified glass industry, is used for building by laying bricks or stones positions such as breastwork, arch top, top cover.
As shown in Figure 1, Resintered fused silica brick manufacture method of the present invention comprises the following steps:
A, the broken crusher that uses are with SiO
2〉=99.5% fused quartz raw material is broken into following two size range: granularity 3-1mm and granularity 1-0mm;
Crusher can be selected jaw crusher for use, or double-roll crusher;
It is 325 purpose fine powders that b, abrasive dust use ball mill that the raw material of granularity 1-0mm is further worn into granularity;
C, deironing use magnetic separator that the ferric oxide that occurs in described step a and the b process is removed, then can reduce the use temperature of Resintered fused silica brick of the present invention and pollute glass metal as the iron oxide content height, remove the quality that ferric oxide guarantees Resintered fused silica brick of the present invention;
D, the batching in weight part, according to following composition and particle level mix,
Fused quartz: granularity 3-1mm 50-60 part, granularity 1-0mm 10-20 part, granularity 325 order 30-40 parts;
Mineralising powder 1-2 part; Binding agent 4-7 part;
E, ageing mixture will be prepared in the container that mixed raw materials is placed on sealing and seal up for safekeeping;
F, the moulding material injecting mould compression moulding after with ageing mixture;
G, drying are put into kiln with the adobe of moulding and are carried out drying and dehydrating;
H, the adobe that sintering is good with drying are placed in the high temperature kiln and burn till into brick;
Then, will become brick to pack on request, dispatch from the factory.
Wherein, described mineralizer is the SILICA FUME of SiO2 〉=92%, and SILICA FUME has at Resintered fused silica brick gains in strength, and improves anti-folding, ultimate compression strength, increases density and cohesive force, the effect of easy-sintering.
Wherein, described binding agent can be silicon sol, and silicon sol can play the effect that strengthens the basic, normal, high temperature intensity of Resintered fused silica brick simultaneously.
Because silicon sol has following characteristic: 1, viscosity is lower, and the porous place of water can both be permeated, therefore and other materials when mixing dispersiveness and perviousness all very good; Therefore 2, colloidal particle is small, has only 10-20nm, has sizable specific surface area, and the water white transparency of particle own does not influence and is capped of thing itself; 3, when the silicon sol moisture evaporation, colloidal particle firm attached to body surface, form the silica combination between particle, have fine bond effect; 4, anti-1500-1600 ℃ high temperature; Therefore, silicon sol is applied in as binding agent in the manufacturing of Resintered fused silica brick of the present invention, can play the effect of gaining in strength.
The mode that described binding agent can also select for use low temperature bonding agent and high-temperature agglomerant to combine increases the low temperature intensity and the hot strength of brick of the present invention respectively, and carboxymethyl cellulose is selected in agent for use as low temperature bonding, and high-temperature agglomerant is selected aluminium dihydrogen phosphate for use.
Binding agent is selected aforesaid way for use, and in the batching of the inventive method, by weight, described low temperature bonding agent carboxymethyl Mierocrystalline cellulose is: 1-2 part, the high-temperature agglomerant aluminium dihydrogen phosphate is: 3-5 part.
Manufacture method of the present invention, with the fused quartz is raw material, after broken, abrasive dust processing, and grain composition reasonably, and after adding tackiness agent, mineralizer and water and mixing, be placed in the container of sealing and seal up for safekeeping, make raw material and tackiness agent, mineralizer carry out abundant chemical reaction, to increase the density and the cohesive force of raw material, improve the strong of product, then, through mould molding, drying, sintering program, finish manufacturing.The Resintered fused silica brick that uses the inventive method to make, as the refractory materials at glasses melting furnace flame space position, in the devitrified glass production process, SiO
2Crystal formation no longer changes because of temperature variation, and volume does not change because of temperature variation, therefore has good thermostability, heat-shock resistance; Simultaneously, Resintered fused silica brick of the present invention is because SiO
2Content is high, even localized delamination is arranged, does not also influence the devitrified glass quality; Thereby guaranteed the ordinary production of devitrified glass kiln, solved the key factor of restriction industry development.
Embodiment 1
Resintered fused silica brick manufacture method of the present invention comprises the following steps:
A, the broken crusher that uses are with SiO
2〉=99.5% fused quartz raw material is broken into following two size range: granularity 3-1mm and granularity 1-0mm;
It is 325 purpose fine powders that b, abrasive dust use ball mill that the raw material of granularity 1-0mm is further worn into granularity;
C, deironing use magnetic separator that the ferric oxide that occurs in described step a and the b process is removed;
D, the batching in weight part, according to following composition and particle level mix,
50 parts of fused quartz: granularity 3-1mm, 10 parts of granularity 1-0mm, 40 parts in granularity 325 orders;
1.2 parts of little breezes; 6.5 parts of silicon sol;
E, ageing mixture will be prepared in the container that mixed raw materials is placed on sealing and seal up for safekeeping;
F, the moulding material injecting mould compression moulding after with ageing mixture;
G, drying are put into kiln with the adobe of moulding and are carried out drying and dehydrating;
H, the adobe that sintering is good with drying are placed in the high temperature kiln and burn till into brick;
Then, will become brick to pack on request, dispatch from the factory.
Embodiment 2
In present embodiment and following examples with embodiment 1 in identical step, for saving space, no longer repeat chela and state, only be described below with regard to difference:
The batching of the inventive method is: fused quartz: 55 parts of size range 3-1mm, 10 parts of size range 1-0mm, 35 parts in granularity 325 orders;
1.5 parts of little breezes; 6 parts of silicon sol.
Embodiment 3
The batching of the inventive method is: fused quartz: 60 parts of granularity 3-1mm, 15 parts of granularity 1-0mm, 35 parts in granularity 325 orders;
1.7 parts of little breezes; 5.5 parts of silicon sol.
Embodiment 4
50 parts of fused quartz: granularity 3-1mm, 10 parts of granularity 1-0mm, 40 parts in granularity 325 orders;
1.2 parts of little breezes; 1 part of carboxymethyl cellulose; 4.5 parts of aluminium dihydrogen phosphates.
Embodiment 5
The batching of the inventive method is: fused quartz: 55 parts of size range 3-1mm, 10 parts of size range 1-0mm, 35 parts in granularity 325 orders;
1.5 parts of little breezes; 1.5 parts of carboxymethyl celluloses; 4 parts of aluminium dihydrogen phosphates.
Embodiment 6
The batching of the inventive method is: fused quartz: 60 parts of granularity 3-1mm, 15 parts of granularity 1-0mm, 35 parts in granularity 325 orders;
1.7 parts of little breezes; 2 parts of carboxymethyl celluloses; 3.4 parts of aluminium dihydrogen phosphates.
Application example of the present invention:
The manufacturing enterprise of Zhejiang devitrified glass, the production line of 10 tons of devitrified glasses of a daily output, because the temperature of fusion of devitrified glass is very high, reach 1600 ℃, in melting process, produce a large amount of high temperature obnoxious flavoures rapidly, the very fast refractory materials with flame space of these gases washes away and eats away, and has polluted glass metal, founds the factory to produce and is forced to stop production half a year.
Above-mentioned accident by analysis, except that the factor of power distribution system, Controlling System, major cause is that the thermal shock resistance of melting furnaces flame space position refractory materials is poor, cannot stand obnoxious flavour washes away, after changing Resintered fused silica brick of the present invention, produce and recover normal, moved the time more than 2 years now, still in ordinary production.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (4)
1, a kind of Resintered fused silica brick is characterized in that, its batching comprises the component of following weight part, fused quartz: granularity 3-1mm 50-60 part;
Granularity 1-0mm 10-20 part;
Granularity 325 order 30-40 parts;
Mineralising powder: 1-2 part; Binding agent: 4-7 part; Wherein,
Described mineralising powder is SiO
2〉=92% SILICA FUME;
Described binding agent is a silicon sol, and perhaps described binding agent comprises low temperature bonding agent carboxymethyl Mierocrystalline cellulose: 1-2 part, high-temperature agglomerant aluminium dihydrogen phosphate: 3-5 part.
2, a kind of method of making the described Resintered fused silica brick of claim 1 is characterized in that, comprises the following steps:
It is that 3-1mm and granularity are the particle in two scopes of 1-0mm that a, fragmentation are broken into granularity with the raw materials melt quartz;
It is 325 purpose fine powders that b, abrasive dust further are ground into granularity with part material;
D, batching take by weighing fused quartz, mineralising powder, the binding agent of each size range in the batching component in proportion, add water and mix;
E, ageing mixture will be prepared in the container that mixed raw materials is placed on sealing and seal up for safekeeping;
F, the moulding material injecting mould compression moulding after with ageing mixture;
G, drying are put into kiln with the adobe of moulding and are carried out drying and dehydrating;
H, the adobe that sintering is good with drying are placed in the high temperature kiln and burn till into brick.
3, method according to claim 2 is characterized in that, the SiO of described raw materials melt quartz
2〉=99.5%.
4, according to claim 2 or 3 described methods, it is characterized in that, after the described step b, before the steps d, also comprise the steps,
The ferric oxide that occurs in described step a and the b process is removed in c, deironing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101634818A CN100516001C (en) | 2007-10-26 | 2007-10-26 | Resintered fused silica brick and method of producing the same |
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|---|---|---|---|
| CNB2007101634818A CN100516001C (en) | 2007-10-26 | 2007-10-26 | Resintered fused silica brick and method of producing the same |
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| CN100516001C true CN100516001C (en) | 2009-07-22 |
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| CN101767983B (en) * | 2009-12-25 | 2014-08-06 | 河北理工大学 | Fused silica ceramic material containing ytterbium oxide and preparation method thereof |
| CN102718507B (en) * | 2012-01-01 | 2015-12-16 | 洛阳北苑特种陶瓷有限公司 | Formula of a kind of fused quartz hollow sphere light-weight brick and preparation method thereof |
| CN102898155A (en) * | 2012-09-07 | 2013-01-30 | 孙邢哲 | Calcium-free silicon-zirconium brick for glass melting furnace, manufacturing method thereof and glass melting furnace |
| CN102826865A (en) * | 2012-09-27 | 2012-12-19 | 左胜 | Fused quartz ceramic hearth roll production process |
| CN104628399B (en) * | 2015-02-11 | 2017-04-19 | 江苏中正耐火材料有限公司 | Crack-resistant and zero-expansion fused-silica brick and preparation method thereof |
| CN105036780B (en) * | 2015-08-26 | 2017-01-25 | 哈尔滨工业大学 | Preparation method of mullite-fiber-reinforced fused quartz composite material |
| CN105036802B (en) * | 2015-09-14 | 2017-05-24 | 山东耐火材料集团有限公司 | Production method for high-strength compact silica bricks |
| CN105601304A (en) * | 2015-12-30 | 2016-05-25 | 宜兴市集创新材料科技有限公司 | Fused silica kiln refractory patching material |
| CN107759239A (en) * | 2017-12-02 | 2018-03-06 | 山东鲁桥新材料股份有限公司 | A kind of preparation method for melting silica brick |
| CN109047294A (en) * | 2018-09-11 | 2018-12-21 | 福建长城华兴玻璃有限公司 | A kind of vial waste material milling process |
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| CN109694255A (en) * | 2019-01-11 | 2019-04-30 | 宜兴市恒祥耐火材料有限公司 | A kind of microdilatancy silica brick and preparation method thereof |
| CN109650860A (en) * | 2019-01-16 | 2019-04-19 | 河北炫坤耐火材料科技发展有限公司 | A kind of resistance to zero expansion silica brick and preparation method thereof of bursting apart of anti-erosion acid resistance |
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| CN113213951B (en) * | 2021-03-31 | 2023-08-01 | 江苏长城窑炉工程有限公司 | Glass kiln material channel fused quartz cover plate brick |
| CN113292346B (en) * | 2021-06-24 | 2022-11-29 | 中钢洛耐科技股份有限公司 | Sintering promoting agent for preparing silica brick, composite silica brick and preparation method of composite silica brick |
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| CN114920541B (en) * | 2022-05-28 | 2023-03-17 | 河北浩锐陶瓷制品有限公司 | High-wear-resistance ceramic material for ceramic tiles, preparation method of high-wear-resistance ceramic material and high-wear-resistance ceramic tiles |
| CN115340394A (en) * | 2022-08-10 | 2022-11-15 | 武汉科技大学 | Boron phosphate reinforced quartz material and preparation method thereof |
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Assignee: Changshu Sinofusion Solar Performance Material Co., Ltd. Assignor: Sun Xingzhe Contract record no.: 2010320000940 Denomination of invention: Resintered fused silica brick and method of producing the same Granted publication date: 20090722 License type: Exclusive License Open date: 20080507 Record date: 20100716 |
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