CN105000896A - Universal siliceous castable - Google Patents
Universal siliceous castable Download PDFInfo
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- CN105000896A CN105000896A CN201510436456.7A CN201510436456A CN105000896A CN 105000896 A CN105000896 A CN 105000896A CN 201510436456 A CN201510436456 A CN 201510436456A CN 105000896 A CN105000896 A CN 105000896A
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Abstract
The invention discloses universal siliceous castable prepared from raw materials including waste silica bricks, quartz powder, silicon dioxide micro powder, Portland cement, high-alumina cement and efficient water reducing agents according to a certain ratio. Waste silica brick particles are used as skeletal materials of the siliceous castable. Main mineral phases of a construction body where pouring is conducted include the tridymite phase and the cristobalite phase. Cracking or stripping caused by large crystal transfer can not be generated. The silicon dioxide micro powder which is used as reinforcing agents and agglomerant as well is used, and therefore the normal temperature strength is improved, and the high temperature sintering performance is improved as well. The Portland cement is adopted as a binding agent, and conversion of residual quartz into tridymite and cristobalite can be promoted under the high temperature. The castable can be directly used under the high temperature after being constructed, the use performance is close to the performance of silica bricks, the overall performance of the castable is superior to that of a construction body spliced and built by small bricks, large-size siliceous cast-in-place construction bodies or prefabricated pieces good in overall performance can be manufactured, and great breakthrough is achieved on the aspect of siliceous castable.
Description
Technical field
The present invention relates to amorphous refractory, especially relate to a kind of general siliceous mould material.
Background technology
The nineties in last century, the development of China's amorphous refractory is very fast, but the application of siliceous amorphous refractory is only limited to some special use positions, such as: the fused quartz matter mouth of a river, and induction furnace siliceous dry type ramming material etc.Because oikocryst item during mould material siliceous by silica direct production is quartz, and the volume change that quartz produces at about 700 DEG C crystal conversions is very large, easily cause construction body cracking or peel off, therefore be only applicable to temperature lower than the environment for use of 600 DEG C by the siliceous mould material that silica is produced, be difficult to use under the high temperature conditions.
Summary of the invention
The object of the present invention is to provide and a kind ofly can use the general siliceous mould material of peeling off and body of constructing can not ftracture under 1500 DEG C of high temperature.
For achieving the above object, the present invention can take following technical proposals:
General siliceous mould material of the present invention is formulated by following weight percent proportioning by give up silica brick, silica powder, fine silica powder, silicate cement, high-alumina cement and high efficiency water reducing agent of raw material:
Useless silica brick particulate material 60 ~ 70 parts, wherein: the useless silica brick particulate material 0 ~ 30 part of granularity 5 ~ 8mm, the useless silica brick particulate material 10 ~ 40 parts of 3mm < granularity < 5mm, the useless silica brick particulate material 10 ~ 20 parts of 1mm≤granularity≤3mm, the useless silica brick particulate material 10 ~ 20 parts of 0.088mm < granularity < 1mm;
The useless silica brick fine powder material 0 ~ 29 part of granularity≤0.088mm;
The quartzy fine powder material of granularity≤0.088mm 0 ~ 30 part;
Fine silica powder 3 ~ 10 parts;
Silicate cement 2 ~ 8 parts;
High-alumina cement 0 ~ 2 part;
High efficiency water reducing agent 0.1 ~ 0.2%/material gross weight.
Useless silica brick used is the useless silica brick (removing impurity) after using in the cull that produces or kiln when producing silica brick, and its index will meet SiO
2>=94%, Fe
2o
3≤ 1.5%, true density≤2.35g/cm3.
The quartzy fine powder used will meet the standard of silica used for refractory material: SiO
2>=96%, Al
2o
3≤ 1.3%, Fe
2o
3≤ 1.3%, CaO≤0.4%.
SiO in described fine silica powder
2>=90%, the higher effect of grade is better.
Described silicate cement should reach the label of 42.5 grades.
The high-alumina cement told should reach the label of 625#.
Described high efficiency water reducing agent is tripoly phosphate sodium STPP, more than at least one or two be composited in Sodium hexametaphosphate 99 or naphthalenesulfonate water reducer.
By all raw materials precise in proportion, enter stirrer mixing 5 ~ 10 minutes, the pack of finished product bulk material stores.Add water during use 5 ~ 10% stir after directly carry out cast-in-site according to furnace construction, formed globality construction body.
advantage applies of the present invention is in the following aspects:
1, adopt useless silica brick particle as aggregate in siliceous mould material of the present invention, make construct the afterwards essential mineral of body of cast be tridymite and cristobalite phase mutually, construction body can not produce larger crystal conversion and causes cracking or peel off;
2, employ fine silica powder in siliceous mould material of the present invention, both improve the normal temperature strength of mould material, too increase the coking property of mould material when high temperature, therefore fine silica powder is toughener is also agglutinant;
3, siliceous mould material of the present invention adopts silicate cement as bonding agent, and at high temperature can promote that residual quartz changes to tridymite and cristobalite, therefore silicate cement is bonding agent is also mineralizer;
4, rationally toast again after mould material construction of the present invention, can directly at high temperature use, use properties is close to the performance of silica brick, maximum operation (service) temperature can reach 1500 DEG C, the construction body being made into different shape can be needed according to furnace construction, its globality is better than the construction body tiled with bit brick, and can be made into the siliceous cast-in-place construction body of the good large volume of globality or prefabricated component, is a very large breakthrough in siliceous mould material.
the performance index of mould material of the present invention see the following form
。
Embodiment
Below by specific embodiment, further more detailed explanation is done to the present invention.
embodiment 1
General siliceous mould material of the present invention adopts following proportioning formulated, by weight raw materials used: useless silica brick particulate material 60 parts, wherein: the useless silica brick particulate material 30 parts of granularity 5 ~ 8mm, the useless silica brick particulate material 10 parts of 3mm < granularity < 5mm, the useless silica brick particulate material 10 parts of 1mm≤granularity≤3mm, the useless silica brick particulate material 10 parts of 0.088mm < granularity < 1mm;
The useless silica brick fine powder material 29 parts of granularity≤0.088mm;
Fine silica powder 3 parts;
Silicate cement 8 parts;
High efficiency water reducing agent is pressed 0.10% of material gross weight and is added, wherein: tripoly phosphate sodium STPP 0.05%, and naphthalenesulfonate water reducer 0.05%.
The siliceous mould material of this proportioning preparation is general mould material, be applicable to the kiln using silica brick at present both at home and abroad, partly can replace silica brick in other words or arrange in pairs or groups with silica brick using, during construction, add water by 5 ~ 10% of material total amount and mix, on-the-spot directly casting; Need insulation during baking when 150 DEG C and 350 DEG C, when 600 ~ 800 DEG C, need slowly baking, can quick baking when temperature exceeds 800 DEG C, dry and can use after 1000 DEG C, maximum operation (service) temperature can reach 1300 DEG C.
embodiment 2
General siliceous mould material of the present invention adopts following proportioning formulated, by weight raw materials used: useless silica brick particulate material 60 parts, wherein: the useless silica brick particulate material 30 parts of granularity 5 ~ 8mm, the useless silica brick particulate material 10 parts of 3mm < granularity < 5mm, the useless silica brick particulate material 10 parts of 1mm≤granularity≤3mm, the useless silica brick particulate material 10 parts of 00.88mm < granularity < 1mm;
The quartzy fine powder material of granularity≤0.088mm 29 parts;
Fine silica powder 3 parts;
Silicate cement 8 parts;
High efficiency water reducing agent is pressed 0.15% of material gross weight and is added, wherein: tripoly phosphate sodium STPP 0.05%, and naphthalenesulfonate water reducer 0.1%.
The siliceous mould material of this proportioning preparation is general mould material, be applicable to the kiln using silica brick at present both at home and abroad, partly can replace silica brick in other words or arrange in pairs or groups with silica brick using, during construction, add water by 5 ~ 10% of material total amount and mix, on-the-spot directly casting.Need insulation during baking when 150 DEG C and 350 DEG C, when 600 ~ 800 DEG C, need slowly baking, can quick baking when temperature exceeds 800 DEG C, dry and can use after 1000 DEG C, maximum operation (service) temperature can reach 1300 DEG C.
embodiment 3
General siliceous mould material of the present invention adopts following proportioning formulated, by weight raw materials used: useless silica brick particulate material 60 parts, wherein: the useless silica brick particulate material 40 parts of 3mm < granularity < 5mm, the useless silica brick particulate material 10 parts of 1mm≤granularity≤3mm, the useless silica brick particulate material 10 parts of 0.088mm < granularity < 1mm;
The quartzy fine powder material of granularity≤0.088mm 30 parts;
Fine silica powder 8 parts;
Silicate cement 2 parts;
High efficiency water reducing agent is pressed 0.15% of material gross weight and is added, wherein: tripoly phosphate sodium STPP 0.05%, and naphthalenesulfonate water reducer 0.1%.
The siliceous mould material of this proportioning preparation is general mould material, be applicable to the kiln using silica brick at present both at home and abroad, partly can replace silica brick in other words or arrange in pairs or groups with silica brick using, during construction, add water by 5 ~ 10% of material total amount and mix, on-the-spot directly casting, need insulation during baking when 150 DEG C and 350 DEG C, when 600 ~ 800 DEG C, need slowly baking, can quick baking when temperature exceeds 800 DEG C, dry and can use after 1000 DEG C, maximum operation (service) temperature can reach 1500 DEG C.
embodiment 4
General siliceous mould material of the present invention adopts following proportioning formulated, by weight raw materials used: useless silica brick particulate material 60 parts, wherein: the useless silica brick particulate material 40 parts of 3mm < granularity < 5mm, the useless silica brick particulate material 10 parts of 1mm≤granularity≤3mm, the useless silica brick particulate material 10 parts of 0.088mm < granularity < 1mm;
The quartzy fine powder material of granularity≤0.088mm 28 parts;
Fine silica powder 8 parts;
Silicate cement 2 parts;
High-alumina cement 2 parts;
High efficiency water reducing agent is pressed 0.2% of material gross weight and is added, wherein: Sodium hexametaphosphate 99 0.1%, and naphthalenesulfonate water reducer 0.1%.
The siliceous mould material of this proportioning preparation is general mould material, be applicable to the kiln using silica brick at present both at home and abroad, partly can replace silica brick in other words or arrange in pairs or groups with silica brick using, during construction, add water by 5 ~ 10% of material total amount and mix, on-the-spot directly casting, need insulation during baking when 150 DEG C and 350 DEG C, when 600 ~ 800 DEG C, need slowly baking, can quick baking when temperature exceeds 800 DEG C, dry and can use after 1000 DEG C, maximum operation (service) temperature can reach 1300 DEG C.
embodiment 5
General siliceous mould material of the present invention adopts following proportioning formulated, by weight raw materials used: useless silica brick particulate material 70 parts, wherein: the useless silica brick particulate material 40 parts of 3mm < granularity < 5mm, the useless silica brick particulate material 20 parts of 1mm≤granularity≤3mm, the useless silica brick particulate material 10 parts of 0.088mm < granularity < 1mm;
The quartzy fine powder material of granularity≤0.088mm 18 parts;
Fine silica powder 8 parts;
Silicate cement 3 parts;
High-alumina cement 1 part;
High efficiency water reducing agent is pressed 0.15% of material gross weight and is added, wherein: Sodium hexametaphosphate 99 0.05%, and naphthalenesulfonate water reducer 0.1%.
The siliceous mould material of this proportioning preparation is general mould material, be applicable to the kiln using silica brick at present both at home and abroad, partly can replace silica brick in other words or arrange in pairs or groups with silica brick using, during construction, add water by 5 ~ 10% of material total amount and mix, on-the-spot directly casting.Need insulation during baking when 150 DEG C and 350 DEG C, when 600 ~ 800 DEG C, need slowly baking, can quick baking when temperature exceeds 800 DEG C, dry and can use after 1000 DEG C, maximum operation (service) temperature can reach 1350 DEG C.
embodiment 6
General siliceous mould material of the present invention adopts following proportioning formulated, by weight raw materials used: useless silica brick particulate material 70 parts, wherein: the useless silica brick particulate material 40 parts of 3mm < granularity < 5mm, the useless silica brick particulate material 10 parts of 1mm≤granularity≤3mm, the useless silica brick particulate material 20 parts of 0.088mm < granularity < 1mm;
The quartzy fine powder material of granularity≤0.088mm 17 parts;
Fine silica powder 10 parts;
Silicate cement 2 parts;
High efficiency water reducing agent is pressed 0.15% of material gross weight and is added, wherein: Sodium hexametaphosphate 99 0.05%, and naphthalenesulfonate water reducer 0.1%.
The siliceous mould material of this proportioning preparation is general mould material, be applicable to the kiln using silica brick at present both at home and abroad, partly can replace silica brick in other words or arrange in pairs or groups with silica brick using, during construction, add water by 5 ~ 10% of material total amount and mix, on-the-spot directly casting, need insulation during baking when 150 DEG C and 350 DEG C, when 600 ~ 800 DEG C, need slowly baking, can quick baking when temperature exceeds 800 DEG C, dry and can use after 1000 DEG C, maximum operation (service) temperature can reach 1500 DEG C.
embodiment 7
General siliceous mould material of the present invention adopts following proportioning formulated, by weight raw materials used: useless silica brick particulate material 65 parts, wherein: the useless silica brick particulate material 30 parts of 3mm < granularity < 5mm, the useless silica brick particulate material 20 parts of 1mm≤granularity≤3mm, the useless silica brick particulate material 15 parts of 0.088mm < granularity < 1mm;
The useless silica brick fine powder material 12 parts of granularity≤0.088mm;
The quartzy fine powder material of granularity≤0.088mm 12 parts;
Fine silica powder 8 parts;
Silicate cement 3 parts;
High-alumina cement 0.5 part;
High efficiency water reducing agent is pressed 0.15% of material gross weight and is added, wherein: tripoly phosphate sodium STPP 0.05%, Sodium hexametaphosphate 99 0.05%, naphthalenesulfonate water reducer 0.05%.
The siliceous mould material of this proportioning preparation is general mould material, be applicable to the kiln using silica brick at present both at home and abroad, partly can replace silica brick in other words or arrange in pairs or groups with silica brick using, during construction, add water by 5 ~ 10% of material total amount and mix, on-the-spot directly casting.Need insulation during baking when 150 DEG C and 350 DEG C, when 600 ~ 800 DEG C, need slowly baking, can quick baking when temperature exceeds 800 DEG C, dry and can use after 1000 DEG C, maximum operation (service) temperature can reach 1500 DEG C.
Claims (5)
1. a general siliceous mould material, is characterized in that: it is formulated by following weight by give up silica brick, silica powder, fine silica powder, silicate cement, high-alumina cement and high efficiency water reducing agent of raw material:
Useless silica brick particulate material 60 ~ 70 parts, wherein: the useless silica brick particulate material 0 ~ 30 part of granularity 5 ~ 8mm, the useless silica brick particulate material 10 ~ 40 parts of 3mm < granularity < 5mm, the useless silica brick particulate material 10 ~ 20 parts of 1mm≤granularity≤3mm, the useless silica brick particulate material 10 ~ 20 parts of 0.088mm < granularity < 1mm;
The useless silica brick fine powder material 0 ~ 29 part of granularity≤0.088mm;
The quartzy fine powder material of granularity≤0.088mm 0 ~ 30 part;
Fine silica powder 3 ~ 10 parts;
Silicate cement 2 ~ 8 parts;
High-alumina cement 0 ~ 2 part;
High efficiency water reducing agent 0.1 ~ 0.2%/material gross weight.
2. general siliceous mould material according to claim 1, is characterized in that: SiO in described useless silica brick
2>=94%, Fe
2o
3≤ 1.5%, true density≤2.35g/cm3.
3. general siliceous mould material according to claim 1, is characterized in that: SiO in described quartzy fine powder
2>=96%, Al
2o
3≤ 1.3%, Fe
2o
3≤ 1.3%, CaO≤0.4%.
4. general siliceous mould material according to claim 1, is characterized in that: SiO in described fine silica powder
2>=90%.
5. general siliceous mould material according to claim 1, is characterized in that: described high efficiency water reducing agent is tripoly phosphate sodium STPP, more than at least one or two be composited in Sodium hexametaphosphate 99 or naphthalenesulfonate water reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510436456.7A CN105000896B (en) | 2015-07-23 | 2015-07-23 | General siliceous castable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510436456.7A CN105000896B (en) | 2015-07-23 | 2015-07-23 | General siliceous castable |
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|---|---|
| CN105000896A true CN105000896A (en) | 2015-10-28 |
| CN105000896B CN105000896B (en) | 2017-10-10 |
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ID=54373814
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| CN201510436456.7A Active CN105000896B (en) | 2015-07-23 | 2015-07-23 | General siliceous castable |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314994A (en) * | 2015-11-30 | 2016-02-10 | 武汉钢铁(集团)公司 | Blast furnace main runner surface mulch |
| CN108911763A (en) * | 2018-06-19 | 2018-11-30 | 佘春霞 | A kind of large size coke dry quenching furnace cooling section high abrasion indefinite form castable |
| CN110627489A (en) * | 2019-10-31 | 2019-12-31 | 郑州市科源耐火材料有限公司 | Environment-friendly refractory castable for ferronickel rotary kiln and preparation method thereof |
| CN110683851A (en) * | 2019-10-18 | 2020-01-14 | 湖北安耐捷炉衬材料有限公司 | Environment-friendly acid furnace lining dry type vibration material |
| 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 |
| CN111548171A (en) * | 2020-04-30 | 2020-08-18 | 中冶武汉冶金建筑研究院有限公司 | Silica refractory mortar with excellent high-temperature performance |
| CN112341171A (en) * | 2020-11-25 | 2021-02-09 | 辽宁科技大学 | Preparation method of silicon sintering crucible for induction furnace lining |
| KR102273124B1 (en) * | 2020-09-09 | 2021-07-05 | 대경케스팅 주식회사 | Construction method of refractory for lining of induction melting furnace and refractory for lining of induction melting furnace constructed by the same |
| CN113788692A (en) * | 2021-10-12 | 2021-12-14 | 浙江锦诚新材料股份有限公司 | Anti-skinning castable and preparation method thereof |
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| CN1537821A (en) * | 2003-04-18 | 2004-10-20 | 张东辉 | Water-proof acid resistant heat resistant light heat insulating casting material and its manufacturing method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314994A (en) * | 2015-11-30 | 2016-02-10 | 武汉钢铁(集团)公司 | Blast furnace main runner surface mulch |
| CN108911763A (en) * | 2018-06-19 | 2018-11-30 | 佘春霞 | A kind of large size coke dry quenching furnace cooling section high abrasion indefinite form castable |
| CN110683851A (en) * | 2019-10-18 | 2020-01-14 | 湖北安耐捷炉衬材料有限公司 | Environment-friendly acid furnace lining dry type vibration material |
| CN110627489A (en) * | 2019-10-31 | 2019-12-31 | 郑州市科源耐火材料有限公司 | Environment-friendly refractory castable for ferronickel rotary kiln and preparation method thereof |
| 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 |
| 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 |
| CN111548171A (en) * | 2020-04-30 | 2020-08-18 | 中冶武汉冶金建筑研究院有限公司 | Silica refractory mortar with excellent high-temperature performance |
| CN111548171B (en) * | 2020-04-30 | 2022-03-25 | 中冶武汉冶金建筑研究院有限公司 | Silica refractory mortar with excellent high-temperature performance |
| KR102273124B1 (en) * | 2020-09-09 | 2021-07-05 | 대경케스팅 주식회사 | Construction method of refractory for lining of induction melting furnace and refractory for lining of induction melting furnace constructed by the same |
| CN112341171A (en) * | 2020-11-25 | 2021-02-09 | 辽宁科技大学 | Preparation method of silicon sintering crucible for induction furnace lining |
| CN113788692A (en) * | 2021-10-12 | 2021-12-14 | 浙江锦诚新材料股份有限公司 | Anti-skinning castable and preparation method thereof |
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