CN102838366A - High-strength refractory casting material and preparation method thereof - Google Patents
High-strength refractory casting material and preparation method thereof Download PDFInfo
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- CN102838366A CN102838366A CN2012103659596A CN201210365959A CN102838366A CN 102838366 A CN102838366 A CN 102838366A CN 2012103659596 A CN2012103659596 A CN 2012103659596A CN 201210365959 A CN201210365959 A CN 201210365959A CN 102838366 A CN102838366 A CN 102838366A
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Abstract
The invention discloses a high-strength refractory casting material and a preparation method thereof. The casting material comprises the following components in percentage by weight: 70-90% of base material, 9-26% of auxiliary material and 1.0-4.0% of admixture. The base material is any one or more of hard clay, superfine alumina and corundum; the auxiliary material comprises adhesive, silicon micropowder and cement; and the admixture comprises steel fiber, sodium tripolyphosphate and/or sodium hexametaphosphate. The preparation method comprises the following steps: pulverizing the base material, screening into six grades, and sequentially adding different grades of base material into a mixer from crudeness to fineness while sequentially adding the auxiliary material and admixture and evenly mixing, thereby obtaining the refractory casting material. The amorphous refractory casting material prepared from the three elements has the advantages of accessible raw materials, simple preparation method and favorable construction performance, has excellent high temperature resistance, wear resistance, scour resistance, corrosion resistance and the like after being cast and molded, prolongs the service life of the kiln, enhances the utilization ratio of equipment and facilities, lowers the production cost and enhances the economic benefit.
Description
Technical field
The invention belongs to technical field of refractory materials, it is easy to be specifically related to a kind of production technique, and low preparation cost need not pre-setting, uses cast-in-placely at present, wear-resistantly after the moulding, anti-washes away, the high-strength fireproof pour material of anti-erosion, long service life and preparation method thereof.
Background technology
Refractorily lined is that the routine of various high temperature kilns makes up material; Because various kilns use different raw materials, under the condition of high temperature, the highly corrosive that shows, high impact-resistant are also different; Thereby furnace lining also had higher requirement, to adapt to different kiln process environments requirements.The backup lining brick of prior art mostly is to customize machine-shaping in advance.This has increased difficulty of processing and production cost undoubtedly, also increases the difficulty of construction of kiln.In order to strengthen the application property of furnace lining, reduce production costs, the scientific worker also once developed similar cement the same can cast-in-place shaping mould material, in the deficiency that has to a certain degree overcome premolding refractory brick.But the mould material of prior art have the problem of resistance to elevated temperatures, erosion resistance and abrasion resistance difference, and intensity is lower, and work-ing life is short, increases the maintenance cost of kiln and the normal operation of production, so the popularization of mould material and application have received influence.For this reason, develop a kind of can wear-resistantly, anti-washing away, application property is good, and intensity is high, and the life-span, long high strength refractory material was very important, and had wide popularizing application prospect.
Summary of the invention
First purpose of the present invention is to provide a kind of production technique easy, and low preparation cost need not pre-setting, uses cast-in-placely at present, wear-resistantly after the moulding, anti-washes away, the high-strength fireproof pour material of anti-erosion, long service life; Second purpose is to provide a kind of method for preparing high-strength fireproof pour material.
First purpose of the present invention is to realize like this; Comprise base-material, auxiliary material and admixture; It is characterized in that said each component by weight assembly, promptly base-material is 70 ~ 90%, and auxiliary material is 9 ~ 26%; Admixture is 1.0 ~ 4.0%, and described base-material is any one or a few in flint clay, high grade bauxite and the corundum; Described auxiliary material comprises binder 2 ~ 8%, silicon powder 2 ~ 7% and cement 5 ~ 11%; Described admixture comprises 0.99 ~ 3% steel fiber, 0.01 ~ 0.04% tripoly phosphate sodium STPP and/or 0.03 ~ 0.06% Sodium hexametaphosphate 99.
Second purpose of the present invention is achieved in that and comprises base-material primary election, base-material pulverizing, screening, mixed processes, specifically comprises:
A, base-material primary election: at first the base-material raw material is carried out pre-treatment, impurities removing, impurity, subsequent use;
B, base-material are pulverized: the raw material of desire processing is inserted in the high abrasion kibbler pulverize;
C, screening: the material screening after will pulverizing goes out particle diameter 15mm with the lower section, and screening is six grades: 15 ~ 8mm, and 8 ~ 5mm, 5 ~ 3mm, 3 ~ 1mm, 1 ~ 0.01mm and＜0.01 fine powder part, coarse fodder returns pulverizing process;
D, mixing: at first take by weighing base-material, auxiliary material and the admixture of each grade successively by technical recipe, subsequent use; Successively base-material is added in the mixing and blending machine by order from coarse to fine, stir on the limit, and the limit is reinforced; Add auxiliary material subsequently, add admixture at last, and then mixed 5 ~ 10 minutes.
Mixing and stirring is added auxiliary material then and is continued mixing and stirring, adds the admixture mixing and stirring at last again.
The present invention adopts the ternary prescription to prepare unformed refractory castable, and not only raw material is easy to get, and the preparation method is easy; And application property is good; Promptly have behind the casting high temperature resistantly, wear-resistant, anti-wash away, erosion-resistant good characteristic, the long service life that has prolonged refractory part has improved equipment, facility utilization rate; Reduce production cost, improved economic benefit.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described, but never in any form the present invention is limited, any conversion or replacement based on training centre of the present invention is done all belong to protection scope of the present invention.
High-strength fireproof pour material of the present invention comprises base-material, auxiliary material and admixture, and said each component is by weight assembly; Be that base-material is 70 ~ 90%; Auxiliary material is 9 ~ 26%, and admixture is 1.0 ~ 4.0%, and described base-material is any one or a few in flint clay, high grade bauxite and the corundum; Described auxiliary material comprises binder 2 ~ 8%, silicon powder 2 ~ 7% and cement 5 ~ 11%; Described admixture comprises 0.99 ~ 3% steel fiber, 0.01 ~ 0.04% tripoly phosphate sodium STPP and/or 0.03 ~ 0.06% Sodium hexametaphosphate 99.
Described base-material is 75 ~ 85%, and auxiliary material is 13 ~ 21%, and admixture is 1.5 ~ 3.0%.
Described binder comprises soft clay and/or a-Al
2O
3Micro mist.
Described base-material is combined by following grade, and particle diameter 15 ~ 8mm accounts for 8 ~ 11%, and particle diameter 8 ~ 5mm accounts for 13 ~ 16%, and particle diameter 5 ~ 3mm accounts for 13 ~ 16%, and particle diameter 3 ~ 1mm accounts for 20 ~ 25%, and particle diameter 1 ~ 0.01mm respectively accounts for 8 ~ 11% with＜0.01mm fine powder part.
Described cement is CA-50 or CA-80 high-alumina cement.
The particle diameter of described binder is 200 ~ 300 orders.
Described silicon powder particle diameter is less than 5 μ m.
Preparing method of the present invention comprises base-material primary election, base-material pulverizing, screening, mixed processes, specifically comprises:
Described base-material primary election is at first carried out pre-treatment to the base-material raw material, and impurities removing, impurity are subsequent use;
Described base-material is pulverized, and the raw material of desire processing is inserted in the high abrasion kibbler pulverize;
Described screening the material screening after pulverizing is gone out particle diameter 15mm with the lower section, and screening is six grades: 15 ~ 8mm, and 8 ~ 5mm, 5 ~ 3mm, 3 ~ 1mm, 1 ~ 0.01mm and＜0.01 fine powder part, coarse fodder returns pulverizing process;
Described mixing at first takes by weighing base-material, auxiliary material and the admixture of each grade successively by technical recipe, subsequent use; Successively base-material is added in the mixing and blending machine by order from coarse to fine, stir on the limit, and the limit is reinforced; Add auxiliary material subsequently, add admixture at last, the time of mixing is 8 ~ 15min.
Described high abrasion kibbler is the wear-resisting kibbler of high mangaenese steel.
The described time of mixing is preferably 10 ~ 12min.
Embodiment 1
The refractory castable that the preparation heatproof is 1200 ℃ is applicable to: common kiln lining cast
Technical recipe is: base-material: flint clay 700kg, auxiliary material: soft clay 80 kg, CA-50 high-alumina cement 110kg, silicon powder 70 kg; Admixture: steel fiber 39 kg, tripoly phosphate sodium STPP 0.4 kg, Sodium hexametaphosphate 99 0.6 kg.
At first flint clay is anticipated, impurities removing is pulverized with the wear-resisting kibbler of purified raw material, gets particle diameter less than the 15mm part, and screening is six grades, i.e. 15-8mm, 8 ~ 5mm, 5 ~ 3mm, 3 ~ 1mm, 1 ~ 0.01mm and＜0.01 part.Get the 80kg of 15 ~ 8mm, 8 ~ 5mm accounts for 130 kg, and 5 ~ 3mm accounts for 130 kg, the 200kg of 3 ~ 1mm, and particle diameter 1 ~ 0.01mm respectively accounts for 80kg with＜0.01 fine powder part.
Successively the base-material mixing and blending machine of putting into from coarse to fine is mixed, evenly add soft clay 80 kg subsequently, mix, add CA-50 high-alumina cement 110kg, silicon powder 70 kg again, stir; Add admixture steel fiber 39 kg, tripoly phosphate sodium STPP 0.4 kg, Sodium hexametaphosphate 99 0.6 kg at last successively, accomplish mixing process behind the stirring 8min, the preparation high-temperature flame-proof pouring material.
Embodiment 2
The refractory castable that the preparation heatproof is about 1300 ℃ is applicable to: middle temperature kiln lining cast
Technical recipe is: base-material: high grade bauxite 900kg, auxiliary material: soft clay 20 kg, CA-50 high-alumina cement 50kg, silicon powder 20 kg; Admixture: steel fiber 9.9 kg, tripoly phosphate sodium STPP 0.1 kg.
At first high grade bauxite is anticipated, impurities removing is pulverized with the wear-resisting kibbler of purified raw material, gets particle diameter less than the 15mm part, and screening is six grades, i.e. 15-8mm, 8 ~ 5mm, 5 ~ 3mm, 3 ~ 1mm, 1 ~ 0.01mm and＜0.01 part.Get the 110kg of 15 ~ 8mm, 8 ~ 5mm accounts for 160kg, and 5 ~ 3mm accounts for 160 kg, the 250kg of 3 ~ 1mm, and particle diameter 1 ~ 0.01mm respectively accounts for 110kg with＜0.01 fine powder part.
Successively the base-material mixing and blending machine of putting into from coarse to fine is mixed, evenly add soft clay 20 kg subsequently, mix, add CA-80 high-alumina cement 50kg, silicon powder 20 kg again, stir; Add admixture steel fiber 9.9kg, tripoly phosphate sodium STPP 0.1kg at last successively, accomplish mixing process behind the stirring 15min, the preparation high-temperature flame-proof pouring material.
Embodiment 3
The refractory castable of preparation heatproof＞1300 ℃ is applicable to: the cast of high temperature kiln furnace lining
Technical recipe is: base-material: corundum 800kg, auxiliary material: a-Al
2O
3Micro mist 20 kg, CA-80 high-alumina cement 110kg, silicon powder 40kg; Admixture: steel fiber 29kg, tripoly phosphate sodium STPP 0.4 kg, Sodium hexametaphosphate 99 0.6kg.
At first corundum is anticipated, impurities removing is pulverized with the wear-resisting kibbler of purified raw material, gets particle diameter less than the 15mm part, and screening is six grades, i.e. 15 ~ 8mm, 8-5mm, 5 ~ 3mm, 3 ~ 1mm, 1 ~ 0.01mm and＜0.01 part.Get the 80kg of 15 ~ 8mm, 8 ~ 5mm accounts for 130 kg, and 5 ~ 3mm accounts for 130 kg, the 200kg of 3 ~ 1mm, and particle diameter 1 ~ 0.01mm respectively accounts for 80kg with＜0.01 fine powder part.
Successively the base-material mixing and blending machine of putting into from coarse to fine is mixed, evenly add soft clay 20 kg subsequently, mix, add CA-50 high-alumina cement 110kg, silicon powder 40 kg again, stir; Add admixture steel fiber 29kg, tripoly phosphate sodium STPP 0.4 kg, Sodium hexametaphosphate 99 0.6kg at last successively, accomplish mixing process behind the stirring 10min, the preparation high-temperature flame-proof pouring material.
Embodiment 4
The refractory castable that the preparation heatproof is 1200 ℃ is applicable to: common kiln lining cast
Technical recipe is: base-material: flint clay 900kg, auxiliary material: soft clay 20 kg, CA-50 high-alumina cement 50kg, silicon powder 20 kg; Admixture: steel fiber 9.7 kg, tripoly phosphate sodium STPP 0.1 kg, Sodium hexametaphosphate 99 0.3 kg.
At first flint clay is anticipated, impurities removing is pulverized with the wear-resisting kibbler of purified raw material, gets particle diameter less than the 15mm part, and screening is six grades, i.e. 15 ~ 8mm, 8-5mm, 5 ~ 3mm, 3 ~ 1mm, 1 ~ 0.01mm and＜0.01 part.Get the 110kg of 15 ~ 8mm, 8 ~ 5mm accounts for 160kg, and 5 ~ 3mm accounts for 160 kg, the 250kg of 3 ~ 1mm, and particle diameter 1 ~ 0.01mm respectively accounts for 110kg with＜0.01 fine powder part.
Successively the base-material mixing and blending machine of putting into from coarse to fine is mixed, evenly add soft clay 20 kg subsequently, mix, add CA-50 high-alumina cement 50kg, silicon powder 20 kg again, stir; Add admixture steel fiber 9.7kg, tripoly phosphate sodium STPP 0.1kg, Sodium hexametaphosphate 99 0.3kg at last successively, accomplish mixing process behind the stirring 12min, the preparation high-temperature flame-proof pouring material.
Embodiment 5
The refractory castable that the preparation heatproof is about 1300 ℃ is applicable to: middle temperature kiln lining cast
Technical recipe is: base-material: high grade bauxite 850kg, auxiliary material: soft clay 30 kg, CA-50 high-alumina cement 90kg, silicon powder 20 kg; Admixture: steel fiber 9.5 kg, tripoly phosphate sodium STPP 0.1 kg, Sodium hexametaphosphate 99 0.4Kg.
At first high grade bauxite is anticipated, impurities removing is pulverized with the wear-resisting kibbler of purified raw material, gets particle diameter less than the 15mm part, and screening is six grades, i.e. 15-8mm, 8 ~ 5mm, 5 ~ 3mm, 3 ~ 1mm, 1 ~ 0.01mm and＜0.01 part.Get the 110kg of 15 ~ 8mm, 8 ~ 5mm accounts for 160kg, and 5 ~ 3mm accounts for 160 kg, the 250kg of 3 ~ 1mm, and particle diameter 1 ~ 0.01mm respectively accounts for 110kg with＜0.01 fine powder part.
Successively the base-material mixing and blending machine of putting into from coarse to fine is mixed, evenly add soft clay 30 kg subsequently, mix, add CA-80 high-alumina cement 90kg, silicon powder 20 kg again, stir; Add admixture steel fiber 9.5kg, tripoly phosphate sodium STPP 0.1kg, Sodium hexametaphosphate 99 0.4Kg at last successively, accomplish mixing process behind the stirring 15min, the preparation high-temperature flame-proof pouring material.
Embodiment 6
The refractory castable of preparation heatproof＞1300 ℃ is applicable to: the cast of high temperature kiln furnace lining
Technical recipe is: base-material: corundum 850kg, auxiliary material: a-Al
2O
3Micro mist 21 kg, CA-80 high-alumina cement 70kg, silicon powder 30kg; Admixture: steel fiber 28kg, tripoly phosphate sodium STPP 0.4 kg, Sodium hexametaphosphate 99 0.6kg.
At first corundum is anticipated, impurities removing is pulverized with the wear-resisting kibbler of purified raw material, gets particle diameter less than the 15mm part, and screening is six grades, i.e. 15 ~ 8mm, 8-5mm, 5 ~ 3mm, 3 ~ 1mm, 1 ~ 0.01mm and＜0.01 part.Get the 80kg of 15 ~ 8mm, 8 ~ 5mm accounts for 130 kg, and 5 ~ 3mm accounts for 130 kg, the 200kg of 3 ~ 1mm, and particle diameter 1 ~ 0.01mm respectively accounts for 80kg with＜0.01 fine powder part.
Successively the base-material mixing and blending machine of putting into from coarse to fine is mixed, evenly add soft clay 21 kg subsequently, mix, add CA-50 high-alumina cement 70kg, silicon powder 30 kg again, stir; Add admixture steel fiber 28kg, tripoly phosphate sodium STPP 0.4 kg, Sodium hexametaphosphate 99 0.6kg at last successively, accomplish mixing process behind the stirring 10min, the preparation high-temperature flame-proof pouring material.
Claims (10)
1. a high-strength fireproof pour material comprises base-material, auxiliary material and admixture, it is characterized in that said each component is by weight assembly; Be that base-material is 70 ~ 90%; Auxiliary material is 9 ~ 26%, and admixture is 1.0 ~ 4.0%, and described base-material is any one or a few in flint clay, high grade bauxite and the corundum; Described auxiliary material comprises binder 2 ~ 8%, silicon powder 2 ~ 7% and cement 5 ~ 11%; Described admixture comprises 0.99 ~ 3% steel fiber, 0.01 ~ 0.04% tripoly phosphate sodium STPP and/or 0.03 ~ 0.06% Sodium hexametaphosphate 99.
2. high-strength fireproof pour material according to claim 1 is characterized in that described base-material is 75 ~ 85%, and auxiliary material is 13 ~ 21%, and admixture is 1.5 ~ 3.0%.
3. high-strength fireproof pour material according to claim 1 and 2 is characterized in that described binder comprises soft clay and/or a-Al
2O
3Micro mist.
4. high-strength fireproof pour material according to claim 1 and 2; It is characterized in that described base-material is combined by following grade; Particle diameter 15 ~ 8mm accounts for 8 ~ 11%, and particle diameter 8 ~ 5mm accounts for 13 ~ 16%, and particle diameter 5 ~ 3mm accounts for 13 ~ 16%; Particle diameter 3 ~ 1mm accounts for 20 ~ 25%, and particle diameter 1 ~ 0.01mm respectively accounts for 8 ~ 11% with＜0.01mm fine powder part.
5. high-strength fireproof pour material according to claim 1 is characterized in that described cement is CA-50 or CA-80 high-alumina cement.
6. high-strength fireproof pour material according to claim 1, the particle diameter that it is characterized in that described binder is 200 ~ 300 orders.
7. high-strength fireproof pour material according to claim 1 is characterized in that described silicon powder particle diameter is less than 5 μ m.
8. the preparation method of a high-strength fireproof pour material according to claim 1 and 2 is characterized in that comprising base-material primary election, base-material pulverizing, screening, mixed processes, specifically comprises:
A, base-material primary election: at first the base-material raw material is carried out pre-treatment, impurities removing, impurity, subsequent use;
B, base-material are pulverized: the raw material of desire processing is inserted in the high abrasion kibbler pulverize;
C, screening: the material screening after will pulverizing goes out particle diameter 15mm with the lower section, and screening is six grades: 15 ~ 8mm, and 8 ~ 5mm, 5 ~ 3mm, 3 ~ 1mm, 1 ~ 0.01mm and＜0.01 fine powder part, coarse fodder returns pulverizing process;
D, mixing: at first take by weighing base-material, auxiliary material and the admixture of each grade successively by technical recipe, subsequent use; Successively base-material is added in the mixing and blending machine by order from coarse to fine, stir on the limit, and the limit is reinforced; Add auxiliary material subsequently, add admixture at last, the time of mixing is 8 ~ 15min.
9. preparation method according to claim 8 is characterized in that described high abrasion kibbler is the wear-resisting kibbler of high mangaenese steel.
10. preparation method according to claim 8 is characterized in that the said time of mixing is 10 ~ 12min.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104177101A (en) * | 2014-08-20 | 2014-12-03 | 江苏腾天工业炉有限公司 | Formula and manufacturing technique of heavy-weight castable for industrial furnace inner wall |
| CN110483077A (en) * | 2019-08-23 | 2019-11-22 | 河南恒耐尔耐火材料有限公司 | A kind of corundum wear-resistant castable and preparation method thereof |
| CN114315385A (en) * | 2021-12-28 | 2022-04-12 | 江苏正达炉料有限公司 | Low-cost refractory castable and preparation method thereof |
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| CN1597604A (en) * | 2004-07-21 | 2005-03-23 | 王永发 | Low cement high temperature high trength pouring material |
| CN101190849A (en) * | 2007-09-30 | 2008-06-04 | 河南省耕生耐火材料有限公司 | Flash baking pouring material and self-flowing material |
| CN102491768A (en) * | 2011-12-06 | 2012-06-13 | 安徽瑞泰新材料科技有限公司 | Composite bonding wear-resistant castable refractory |
| CN102690123A (en) * | 2012-04-27 | 2012-09-26 | 洛阳市科创耐火材料有限公司 | Quick-drying explosion-proof castable and producing process thereof |
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2012
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597604A (en) * | 2004-07-21 | 2005-03-23 | 王永发 | Low cement high temperature high trength pouring material |
| CN101190849A (en) * | 2007-09-30 | 2008-06-04 | 河南省耕生耐火材料有限公司 | Flash baking pouring material and self-flowing material |
| CN102491768A (en) * | 2011-12-06 | 2012-06-13 | 安徽瑞泰新材料科技有限公司 | Composite bonding wear-resistant castable refractory |
| CN102690123A (en) * | 2012-04-27 | 2012-09-26 | 洛阳市科创耐火材料有限公司 | Quick-drying explosion-proof castable and producing process thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104177101A (en) * | 2014-08-20 | 2014-12-03 | 江苏腾天工业炉有限公司 | Formula and manufacturing technique of heavy-weight castable for industrial furnace inner wall |
| CN110483077A (en) * | 2019-08-23 | 2019-11-22 | 河南恒耐尔耐火材料有限公司 | A kind of corundum wear-resistant castable and preparation method thereof |
| CN114315385A (en) * | 2021-12-28 | 2022-04-12 | 江苏正达炉料有限公司 | Low-cost refractory castable and preparation method thereof |
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|---|---|
| CN102838366B (en) | 2014-07-30 |
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