CN102515801A - Silica brick for glass furnace - Google Patents
Silica brick for glass furnace Download PDFInfo
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- CN102515801A CN102515801A CN2011104293296A CN201110429329A CN102515801A CN 102515801 A CN102515801 A CN 102515801A CN 2011104293296 A CN2011104293296 A CN 2011104293296A CN 201110429329 A CN201110429329 A CN 201110429329A CN 102515801 A CN102515801 A CN 102515801A
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- silica
- content
- brick
- glass furnace
- silica brick
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
- C03B5/43—Use of materials for furnace walls, e.g. fire-bricks
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a silica brick for a glass furnace, and belongs to the technical field of refractory materials. The silica brick for a glass furnace comprises: by weight, 30 to 45% of silica having particle sizes of 3 to 1.0mm, 5 to 25% of silica having particle sizes of 1.0 to 0.5mm, 30 to 50% of silica having particle sizes less than 0.5mm, an additive and a composite additive, wherein the weight of the additive is 5 to 15% of the total weight of the silica and the weight of the composite additive is 2 to 10% of the total weight of the silica. SiO2 content of the silica is great than or equal to 99%. Al2O3 content of the silica is less than or equal to 0.25%. Fe2O3 content of the silica is less than or equal to 0.45%. The additive is a waste silica material having SiO2 content great than or equal to 96%. The composite additive is a mixture of lime milk, mill scales and calcium lignosulphonate. The silica brick for a glass furnace has high SiO2 content, a high yield, low impurity content, low apparent porosity, good high-temperature performances and a long service life. A preparation technology of the silica brick for a glass furnace is simple and is suitable for large-scale production.
Description
Technical field
The present invention relates to technical field of refractory materials, be specifically related to glass furnace and use silica brick.
Background technology
Glass furnace be the glass manufacturing a kind of melting appartus that must have, constitute with refractory materials usually, its investment is bigger, accounts for about 1/3 of gross investment, its importance is well imagined.Silica brick is a kind of with SiO
2Acid refractory for staple; Have characteristics such as high volume stability, antiacid erosion performance are good, refractoriness under load height; Be mainly used in coke oven, glass furnace and the non-ferrous metal metallurgy, be used for its arch top, hanging screen top and front-back wall as long as wherein be used in the silica brick of glass furnace.
The technical indicator of present domestic silica brick manufacturer maintains on the state of the art of rower YB/T 147-2007, JC/T 616-2003 basically.Along with the strict demand of large glass melting furnaces to the life-span in furnace life, glass production producer has not satisfied among rower YB/T 147-2007, the JC/T 616-2003 the index request of silica brick, silica brick is had higher requirement: SiO
2Content>=96%, detrimental impurity (Al
2O
3+ 2R
2O) total amount≤0.48%, Fe
2O
3(reduction refractoriness) content≤0.6%, residual quartz content≤1%, apparent porosity≤20%.Premium grade silica brick in the market is because of its residual quartz content higher (3%), apparent porosity high (21%), the big (2.34g/cm of true density
3) etc., thereby limited its work-ing life under the long term high temperature environment, the particularly use on large glass melting furnaces, float glass process kiln.
Chinese patent CN102126866A discloses the HIGH-PURITY SILICON fire resistant materials and the production technique thereof of a kind of superstructure that is suitable for building by laying bricks or stones the full-oxygen combustion glass furnace etc., and its described refractory materials is SiO
2Content is high-purity silica brick of 97 ~ 98%, with SiO
2Content is aggregate, SiO greater than 98% crystalline silica
2Content is greater than 99% vein quartz or SiO
2Content is matrix greater than 98% crystalline silica; The calcareous mineralizer of admixture massfraction 0.3 ~ 1.5%, 0.1 ~ 0.6% red stone or the agent of manganese oxide mineralising; 0.03 ~ 1.0% polycarboxylic acid series chemical admixture and an amount of wooden calcium sulfonate's wedding agent are formed; Through cooperating, mix, processing after the moulding, drying, sintering, this refractory materials has excellent high temperature resistant, erosion-resisting characteristics, its He Chongruanhuawendu>1690 ℃, apparent porosity≤21.5%, true density≤2.332g/cm
3Cold crushing strength>=47.6MPa, mainly there is following deficiency in it: 1) mainly stress the dissemination of dispersion agent to mineralizer in the pug, according to general refractory materials production technique; It belongs to casting forming method; Forming method is maintenance, the demoulding, and the production cycle is long than the pressing machine moulding, and technology is comparatively loaded down with trivial details; 2) problems such as not mentioned ratio defective product, work-ing life and foreign matter content in this patent; 3) its prescription is complicated, complex production process, and production cost is corresponding higher.
Chinese patent CN102167606A provide a kind of silica brick and preparation method thereof; Be that 55 ~ 75% silica aggregate, 17 ~ 32% silica fine powder, 2 ~ 8% silicon powder and 2 ~ 6% mineralizer are mixed; Add the lignosulfite of above-mentioned compound 0.5 ~ 4%, mix, burn till after compression moulding, the drying; This silica brick has the load softening point height; Good compactness, the advantage that intensity is high are not used the silica brick requirement but its foreign matter content and dioxide-containing silica all reach the glass kiln, so it mainly is suitable for coke oven usefulness.
Summary of the invention
The object of the present invention is to provide a kind of SiO
2Content is high, yield rate is high, and foreign matter content is low, apparent porosity is low, high-temperature behavior is good, the glass furnace of long service life is used silica brick.
Above-mentioned technical purpose of the present invention is achieved through following technical scheme: glass furnace is used silica brick; The weight percentage of contained component is: granularity is the silica 30 ~ 45% of 3 ~ 1.0mm; Granularity is the silica 5 ~ 25% of 1.0 ~ 0.5mm; Granularity is less than the silica 30 ~ 50% of 0.5mm, and accounts for the admixture of said components gross weight 5 ~ 15% and 2 ~ 10% composite additive;
SiO in the said silica
2Content is not less than 99%, Al
2O
3Content is not higher than 0.25% and Fe
2O
3Content is not higher than 0.45%;
Said admixture is SiO
2Content is not less than 96% useless silicon-dioxide material, and the adding of useless silicon-dioxide material can effectively reduce the volumetric expansion that quartzy crystal formation transforms, and reduces the silica brick crackle, improves yield rate; Effectively improved waste utilization ratio again, save energy.
Said composite additive is the mixture of milk of lime, iron scale and calcium lignin sulphonate; This composite additive helps to improve the adhesive property at pug initial stage; Be beneficial to moulding; Also help the crystal formation of stable silicon stone to transform, play the stress because of expanding and producing when suppressing adobe and burning till, prevent the loose or cracking of goods.
Preferred as such scheme, the percetage by weight of each component is in the said compound additive: milk of lime 75 ~ 90%, iron scale 3 ~ 15%, calcium lignosulfonate 3 ~ 10%.
Preferred as such scheme, the granularity of said admixture is 3 ~ 0.5mm.
Preferred as such scheme, said useless silicon-dioxide material is useless silica brick and/or useless silica tube, can effectively reduce the volumetric expansion that quartzy crystal formation transforms, and can reduce cost.
The present invention also provides the preparation method of a kind of glass furnace with silica brick, comprises the steps:
(1) becomes pug (A) after taking by weighing the 5 ~ 10min that in edge runner-wet mill, mixes behind silica and the admixture by the composition proportioning of aforesaid right requirement; Composition proportioning by the aforesaid right requirement takes by weighing composite additive pre-dispersed one-tenth slurry (B) in a certain amount of water;
(2) (A) mixed 20 ~ 40min with (B) spreading in edge runner-wet mill and become (C);
(3) with (C) in the moulding of 260-500 ton nominal pressure pressed;
(4) brick bat drying to the residual water-content of step (3) moulding is not more than 0.5% after, in hyperthermia tunnel Kiln, be incubated 35 ~ 45 hours and burn till.
As of the present invention preferred, in the said step (1) amount of water be in the composite additive milk of lime weight 0.6 ~ 1.5.
As of the present invention preferred, the high temp tunnel kiln temperature is 1400 ℃ ~ 1430 ℃ in the said step (4).
Silica brick of the present invention is made up of silica, admixture and composite additive; Meet particle closestpacking principle on the proportioning; Through batching, the operation of mixing, behind special firing process, has excellent high-temperature behavior again; Be a kind of siliceous refractory [material of building glass melting pond, cooling end and regenerator crown and superstructure by laying bricks or stones that is applicable to, comprise " L " type hanging screen brick, card neck hanging screen brick, cellular silica brick.
Use the prepared glass furnace of prescription according to the invention and preparation method relatively to see the following form with the physical and chemical index and the standard YB/T 147-2007 of silica brick,
In sum, the present invention compared with prior art has following outstanding advantage and beneficial effect:
1, can know that by last table the present invention has SiO
2Content is high, and foreign matter content is low, and apparent porosity is low, true density is little, and high-temperature behavior is good, and its each item index all quite even be superior to the highest requirement in the YB/T 147-2007 standard;
2, residual quartz content of the present invention is low; The existence of residual quartz can cause the volumetric expansion of brick body in the silica brick; Be prone to cause that brick laying structure is loose; Therefore residual quartz is few more good more in the silica brick, residual quartz content of the present invention≤1.0%, can effectively reduce silica brick because of volumetric expansion cause loosely organized, fall kiln such as brick and build problem by laying bricks or stones;
3, the useless SiO of the present invention
2Material and the adding of composite additive effectively reduce silica brick firing temperature, be beneficial to moulding, help to stablize silica the crystal formation conversion, reduced goods crackle or cracking, increased the density of silica brick, make the yield rate of silica brick reach more than 95%;
4, the present invention is through elder generation's thin reinforced program in thick back, and elder generation adds composite additive wet mixing 20 ~ 40min after doing mixed raw material and admixture 5 ~ 10min again; Can reach mechanical pressing, pug mixes, mineral agent is evenly wrapped up pug requirement, can adopt the forming press mechanical pressing, not need like Chinese patent CN102126866A maintenance, the demoulding; Direct mechanical pressing after pug mixes, moulding is fast, and size is accurate; Can produce in batches, YO can reach at least 3 ten thousand tons;
5, the leading domestic related prods of product performance of the present invention, long service life and yield rate are high; Can be widely used in daily, the big arch of float glass smelting kiln different shape; Work-ing life was in 8 ~ 10 years; And be generally 4 ~ 5 years the work-ing life of existing silica brick, at chemical industry, produce on the kiln such as high white material even have only 2 ~ 3 years.
Embodiment
Below in conjunction with embodiment the present invention is done further explain.This specific embodiment only is to explanation of the present invention; It is not the restriction to invention; Those skilled in the art can make any modification to present embodiment as required after reading this specification sheets, but as long as in claim scope of the present invention, all receive the protection of patent law.
Embodiment 1
Glass furnace is used silica brick; The weight percentage of its contained component is: granularity is the silica 30% of 3 ~ 1.0mm, and granularity is the silica 20% of 1.0 ~ 0.5mm, and granularity is less than the silica 50% of 0.5mm; And account for the admixture of said components gross weight 5% and 2% composite additive, wherein SiO in the silica
2Content is not less than 99%, Al
2O
3Content is not higher than 0.25% and Fe
2O
3Content is not higher than 0.45%; Admixture is SiO
2Content is not less than 96% useless silicon-dioxide material; Composite additive is the mixture of milk of lime, iron scale and calcium lignin sulphonate.
Embodiment 2
Glass furnace is used silica brick; The weight percentage of its contained component is: granularity is the silica 45% of 3 ~ 1.0mm, and granularity is the silica 5% of 1.0 ~ 0.5mm, and granularity is less than the silica 50% of 0.5mm; And account for the admixture of said components gross weight 15% and 10% composite additive, wherein SiO in the silica
2Content is not less than 99%, Al
2O
3Content is not higher than 0.25% and Fe
2O
3Content is not higher than 0.45%; Admixture is SiO
2Content is not less than 96% useless silica brick; Composite additive is the mixture of 75% milk of lime, 15% iron scale and 10% calcium lignin sulphonate.
Embodiment 3
Glass furnace is used silica brick; The weight percentage of its contained component is: granularity is the silica 45% of 3 ~ 1.0mm, and granularity is the silica 25% of 1.0 ~ 0.5mm, and granularity is less than the silica 30% of 0.5mm; And account for the admixture of said components gross weight 10% and 8% composite additive, wherein SiO in the silica
2Content is not less than 99%, Al
2O
3Content is not higher than 0.25% and Fe
2O
3Content is not higher than 0.45%; Admixture is SiO
2Content is not less than 96% useless silicon-dioxide material, the useless silica tube of granularity 3 ~ 0.5mm; Composite additive is the mixture of 90% milk of lime, 3% iron scale and 7% calcium lignin sulphonate.
Embodiment 4
Glass furnace is used silica brick; The weight percentage of its contained component is: granularity is the silica 38% of 3 ~ 1.0mm, and granularity is the silica 15% of 1.0 ~ 0.5mm, and granularity is less than the silica 47% of 0.5mm; And account for the admixture of said components gross weight 10% and 5% composite additive, wherein SiO in the silica
2Content is not less than 99%, Al
2O
3Content is not higher than 0.25% and Fe
2O
3Content is not higher than 0.45%; Admixture is SiO
2Content is not less than 96%, useless silica brick and the useless silica tube of granularity 3 ~ 0.5mm; Composite additive is the mixture of 83% milk of lime, 9% iron scale and 8% calcium lignin sulphonate.
Embodiment 5
Glass furnace is used silica brick; The weight percentage of its contained component is: granularity is the silica 40% of 3 ~ 1.0mm, and granularity is the silica 15% of 1.0 ~ 0.5mm, and granularity is less than the silica 45% of 0.5mm; And account for the admixture of said components gross weight 8% and 6% composite additive, wherein SiO in the silica
2Content is not less than 99%, Al
2O
3Content is not higher than 0.25% and Fe
2O
3Content is not higher than 0.45%; Admixture is SiO
2Content is not less than 96%, useless silica brick and the useless silica tube of granularity 3 ~ 0.5mm; Composite additive is the mixture of 85% milk of lime, 12% iron scale and 3% calcium lignin sulphonate.
Embodiment 6
Glass furnace is used silica brick; The weight percentage of its contained component is: granularity is the silica 35% of 3 ~ 1.0mm, and granularity is the silica 18% of 1.0 ~ 0.5mm, and granularity is less than the silica 47% of 0.5mm; And account for the admixture of said components gross weight 12% and 5% composite additive, wherein SiO in the silica
2Content is not less than 99%, Al
2O
3Content is not higher than 0.25% and Fe
2O
3Content is not higher than 0.45%; Admixture is SiO
2Content is not less than 96%, useless silica brick and the useless silica tube of granularity 3 ~ 0.5mm; Composite additive is the mixture of 80% milk of lime, 12% iron scale and 8% calcium lignin sulphonate.
The foregoing description 1 ~ 6 glass furnace adopts following method preparation with silica brick:
(1) becomes pug (A) after taking by weighing the 5 ~ 10min that in edge runner-wet mill, mixes behind silica and the admixture by proportioning; Take by weighing composite additive pre-dispersed one-tenth slurry (B) in water by proportioning;
(2) (A) and (B) are mixed 20 ~ 40min in edge runner-wet mill and become (C);
(3) with (C) in the moulding of 260-500 ton pressure pressed;
(4) brick bat drying to the residual water-content of step (3) moulding is not more than 0.5% after, insulation was burnt till in 35 hours in hyperthermia tunnel Kiln.
In the above-mentioned steps (1) amount of water be in the composite additive milk of lime weight 0.6 ~ 1.5.
The high temp tunnel kiln temperature is 1400 ℃ ~ 1430 ℃ in the above-mentioned steps (4).
Comparative Examples
Most preferred embodiment 3 among the Chinese patent CN102167606A: 98.5% silica, 98.5% silica of 15% granularity, 1.0 ~ 0.09mm, 34% granularity that adopt massfraction 50% granularity 2.5 ~ 1.0mm<0.09mm 99.5% silica, 0.7% C
2S cement, 0.3% brown iron oxide, add 0.15% polycarboxylate water-reducer, add 2% spent pulping liquor, through mix and stir, cast, maintenance, the demoulding, drying, again through 1420 ~ 1440
oHour burn till C * 10.The foregoing description 1 ~ 6 relatively sees the following form with the physical and chemical index of Comparative Examples:
Claims (7)
1. glass furnace is used silica brick; It is characterized in that; The weight percentage of its contained component is: granularity is the silica 30 ~ 45% of 3 ~ 1.0mm; Granularity is the silica 5 ~ 25% of 1.0 ~ 0.5mm, and granularity is less than the silica 30 ~ 50% of 0.5mm, and accounts for the admixture of said components gross weight 5 ~ 15% and 2 ~ 10% composite additive;
SiO in the said silica
2Content is not less than 99%, Al
2O
3Content is not higher than 0.25% and Fe
2O
3Content is not higher than 0.45%;
Said admixture is SiO
2Content is not less than 96% useless silicon-dioxide material;
Said composite additive is the mixture of milk of lime, iron scale and calcium lignin sulphonate.
2. according to the said glass furnace silica brick of claim 1, it is characterized in that the percetage by weight of each component is in the said compound additive: milk of lime 75 ~ 90%, iron scale 3 ~ 15%, calcium lignosulfonate 3 ~ 10%.
3. use silica brick according to claim 1 or 2 said glass furnaces, it is characterized in that, the granularity of said admixture is 3 ~ 0.5mm.
4. use silica brick according to the said glass furnace of claim 3, it is characterized in that, said useless silicon-dioxide material is useless silica brick and/or useless silica tube.
5. glass furnace is characterized in that with the preparation method of silica brick, comprises the steps:
(1) becomes pug (A) after taking by weighing the 5 ~ 10min that in edge runner-wet mill, mixes behind silica and the admixture by the composition proportioning of aforesaid right requirement; Composition proportioning by the aforesaid right requirement takes by weighing composite additive pre-dispersed one-tenth slurry (B) in a certain amount of water;
(2) (A) mixed 20 ~ 40min with (B) spreading in edge runner-wet mill and become (C);
(3) with (C) in the moulding of 260 ~ 500 tons of nominal pressure pressed;
(4) brick bat drying to the residual water-content of step (3) moulding is not more than 0.5% after, in hyperthermia tunnel Kiln, be incubated 35 ~ 45 hours and burn till.
6. glass furnace according to claim 5 is characterized in that with the preparation method of silica brick, and the amount of water is 0.6 ~ 1.5 times of milk of lime weight in the composite additive in the said step (1).
According to claim 5 or 6 described glass furnaces with the preparation method of silica brick, it is characterized in that the high temp tunnel kiln temperature is 1400 ℃ ~ 1430 ℃ in the said step (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104293296A CN102515801B (en) | 2011-12-20 | 2011-12-20 | Silica brick for glass furnace |
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|---|---|---|---|
| CN2011104293296A CN102515801B (en) | 2011-12-20 | 2011-12-20 | Silica brick for glass furnace |
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|---|---|
| CN102515801A true CN102515801A (en) | 2012-06-27 |
| CN102515801B CN102515801B (en) | 2013-08-07 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036779A (en) * | 2015-09-10 | 2015-11-11 | 中钢集团耐火材料有限公司 | Preparation method of silica bricks for hot blast stove |
| CN105152661A (en) * | 2015-09-10 | 2015-12-16 | 中钢集团耐火材料有限公司 | Silica brick for hot blast stove |
| CN105272289A (en) * | 2015-10-13 | 2016-01-27 | 中钢集团耐火材料有限公司 | Anti-erosion silica brick for carbon calcination furnace |
| CN105272290A (en) * | 2015-10-13 | 2016-01-27 | 中钢集团耐火材料有限公司 | Preparation method of anti-erosion silica brick for carbon calcination furnace |
| CN106495736A (en) * | 2016-10-26 | 2017-03-15 | 郑州寰升耐材有限公司 | A kind of low body density high-strength degree light silicious brick and preparation method thereof |
| CN107867868A (en) * | 2017-12-02 | 2018-04-03 | 山东鲁桥新材料股份有限公司 | A kind of super fine and close high heat conduction silica brick and preparation method thereof |
| CN107986801A (en) * | 2017-11-29 | 2018-05-04 | 山西盂县西小坪耐火材料有限公司 | 7.65M silica brick for coke oven |
| CN108395261A (en) * | 2018-04-12 | 2018-08-14 | 深圳市凯盛科技工程有限公司 | A kind of glass melter high temperature high radiant rate silica brick and preparation method thereof |
| CN110002886A (en) * | 2019-04-30 | 2019-07-12 | 郑州昌联耐火材料有限公司 | A kind of anti-adhesive silica brick |
| CN110981509A (en) * | 2019-12-16 | 2020-04-10 | 江苏诺明高温材料股份有限公司 | Preparation method of low-cost low-water-demand siliceous heat supplementing material |
| CN111995427A (en) * | 2020-08-20 | 2020-11-27 | 郑州东豫新材料科技有限公司 | Thermal shock resistant special-shaped bulk silica brick and preparation method thereof |
| CN113292228A (en) * | 2021-06-09 | 2021-08-24 | 洛阳欧斯特建材有限公司 | Heat insulation material for arch top of float glass kiln |
| CN113651626A (en) * | 2021-09-26 | 2021-11-16 | 中钢洛耐科技股份有限公司 | High-quality silica brick for hot blast stove and preparation method thereof |
| CN114031381A (en) * | 2021-10-22 | 2022-02-11 | 北京科技大学 | Silicon brick added with silicon iron nitride and preparation method thereof |
| CN115894055A (en) * | 2022-12-22 | 2023-04-04 | 郑州通达耐材有限责任公司 | High wear-resistant coke oven silica brick and manufacturing process thereof |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036779A (en) * | 2015-09-10 | 2015-11-11 | 中钢集团耐火材料有限公司 | Preparation method of silica bricks for hot blast stove |
| CN105152661A (en) * | 2015-09-10 | 2015-12-16 | 中钢集团耐火材料有限公司 | Silica brick for hot blast stove |
| CN105036779B (en) * | 2015-09-10 | 2017-08-25 | 中钢集团耐火材料有限公司 | A kind of preparation method of hot-blast stove silica brick |
| CN105272289A (en) * | 2015-10-13 | 2016-01-27 | 中钢集团耐火材料有限公司 | Anti-erosion silica brick for carbon calcination furnace |
| CN105272290A (en) * | 2015-10-13 | 2016-01-27 | 中钢集团耐火材料有限公司 | Preparation method of anti-erosion silica brick for carbon calcination furnace |
| CN105272289B (en) * | 2015-10-13 | 2018-03-20 | 中钢集团耐火材料有限公司 | A kind of carbon calciner anti-erosion silica brick |
| CN105272290B (en) * | 2015-10-13 | 2018-03-20 | 中钢集团耐火材料有限公司 | A kind of preparation method of carbon calciner anti-erosion silica brick |
| CN106495736A (en) * | 2016-10-26 | 2017-03-15 | 郑州寰升耐材有限公司 | A kind of low body density high-strength degree light silicious brick and preparation method thereof |
| CN107986801A (en) * | 2017-11-29 | 2018-05-04 | 山西盂县西小坪耐火材料有限公司 | 7.65M silica brick for coke oven |
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| CN110981509B (en) * | 2019-12-16 | 2022-04-15 | 江苏诺明高温材料股份有限公司 | Preparation method of low-cost low-water-demand siliceous heat supplementing material |
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| CN102515801B (en) | 2013-08-07 |
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