CN103553688A - High-strength wear-resistant and fireproof pouring material - Google Patents
High-strength wear-resistant and fireproof pouring material Download PDFInfo
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- CN103553688A CN103553688A CN201310551506.7A CN201310551506A CN103553688A CN 103553688 A CN103553688 A CN 103553688A CN 201310551506 A CN201310551506 A CN 201310551506A CN 103553688 A CN103553688 A CN 103553688A
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Abstract
The invention discloses a high-strength wear-resistant and fireproof pouring material comprising the following raw materials in parts by weight: 20-25 parts of a coarse aggregate, 35-40 parts of a medium-fine aggregate, 15-20 parts of a fine aggregate, 5-10 parts of a binding agent, 5-10 parts of silicon micropowder, 10-15 parts of aluminum oxide micropowder and 1-5 parts of water, wherein the coarse aggregate is special-grade alumina, the medium-fine aggregate comprises silicon carbide and mullite, the fine aggregate is special-grade alumina, and the binding agent is prepared from the following components in parts by weight: 25-35 parts of sodium silicate, 15-25 parts of magnesium silicate and 30-60 parts of sodium hexametahposphate.
Description
Technical field
The invention belongs to technical field of refractory materials, relate in particular to the good high-strength abrasion-proof refractory castable of a kind of wear resistance.
Background technology
Compare with qualitative refractory product, the unshape refractory that the refractory castable of take is representative has that technical process is short, production energy consumption and cost is low, easy to use, applied widely, globality and the advantage such as result of use is good, thereby worldwide obtained developing rapidly, its proportion shared in whole refractory materials is more and more higher.In some refractory technology advanced persons' country, the output of unshape refractory has approached the output that has even surpassed setting goods.For example, the ratio that current Japanese unshape refractory output accounts for whole refractory materials has reached 60% left and right; The U.S. be 50% left and right; English, De,Fa Deng state are 40% ~ 50%.Nowadays, refractory castable has been widely used in the high temperature service of the industrial circles such as metallurgy, building materials, electric power, chemical industry.
At present, in wear-resistant castable field, prior art mainly relies on adds the high rigidity materials such as corundum, silicon carbide in mould material and makes unshape refractory obtain good wear resistance.For the material at high temperature using, to also justifiable.But this had both wasted resource the refractory materials using for middle low temperature, had increased again cost.So, need to develop the refractory castable again under a kind of cheap and middle cold condition with excellent abrasive resistance, to replace now widely used corundum wear-resistant castable.
Summary of the invention
In view of this, for the deficiencies in the prior art, the invention provides the refractory castable of high-strength abrasion-proof cheaply of a kind of physical strength and wear resisting property excellence.
A kind of high-strength abrasion-proof refractory castable, comprise coarse aggregate, middle aggregate, fine aggregate, binding agent, silicon powder, alumina powder and water, wherein the parts by weight of above-mentioned raw materials are: coarse aggregate 20～25, middle aggregate accounts for 35～40, fine aggregate accounts for 15～20, binding agent 5～10, silicon powder 5～10, alumina powder 10～15, water 1～5.Wherein, coarse aggregate is high grade bauxite; Middle aggregate comprises silicon carbide and mullite, and fine aggregate is high grade bauxite; Wherein, at binding agent, comprise that following parts by weight component makes: water glass 25～35, Magnesium Silicate q-agent 15～25, Sodium hexametaphosphate 99 30～60.
High-strength abrasion-proof refractory castable of the present invention is by usining high grade bauxite as coarse aggregate, using silicon carbide and mullite as middle aggregate, using high grade bauxite as fine aggregate again, add Reactive alumina and accelerate solid state reaction, add by water glass simultaneously, Magnesium Silicate q-agent, the binding agent that Sodium hexametaphosphate 99 forms, make the high-strength abrasion-proof refractory castable can rapid coagulation, and can increase coarse aggregate in high-strength abrasion-proof refractory castable, middle aggregate, fine aggregate and silicon powder, the lubricity of alumina powder, then guarantee the density after high-strength abrasion-proof refractory castable condenses, in addition, add silicon powder to improve the resistance to acid ability of mould material, with alumina, silicon carbide and mullite, replace corundum, reduce raw materials cost, do not affect again the object of mechanical strength and wear resistance.
Embodiment
A kind of high-strength abrasion-proof refractory castable, comprise coarse aggregate, middle aggregate, fine aggregate, binding agent, silicon powder, alumina powder and water, wherein the parts by weight of above-mentioned raw materials are: coarse aggregate 20～25, middle aggregate accounts for 35～40, fine aggregate accounts for 15～20, binding agent 5～10, silicon powder 5～10, alumina powder 10～15, water 1～5.Wherein, coarse aggregate is high grade bauxite; Middle aggregate comprises silicon carbide and mullite, and fine aggregate is high grade bauxite; Wherein, at binding agent, comprise that following parts by weight component makes: water glass 25～35, Magnesium Silicate q-agent 15～25, Sodium hexametaphosphate 99 30～60.
Refractory materials is in order to reach desirable fireproof high-temperature resistant effect, must form the structure formation of what is called " dense accumulation ", this structure formation is that the micro mist in the carse, medium and small aggregate of fine aggregate, the filling space in thick, middle aggregate by occupying the large portion of material space, thick, the middle aggregate of filling space obtains, therefore to the particle diameter of refractory castable kinds of ingredients, select very important, in the present embodiment, the size of described coarse aggregate is 3.0～2.0mm; In described middle aggregate, the size of each component is 1.5mm～1mm; The size of described fine aggregate is 0.5～0.01mm.In addition, when binding agent mesosilicic acid sodium is 50 parts of 30 parts, 20 parts of Magnesium Silicate q-agents, Sodium hexametaphosphate 99, can guarantee the condensation effect of high-strength abrasion-proof refractory castable and condense after density best.
The alumina powder adding in the present invention is activated alumina, and the principal crystalline phase of activated alumina is α～Al
2o
3physico-chemical property is that d≤2.0 μ m, true density>=3.95g/cm, Na O are less than or equal to 0.1%, activated alumina can make the refractory castable apparent porosity of cast less, further, utilize silicon carbide high thermal conductivity to improve the heat-shock resistance of mould material, and by the oxidation of silicon carbide, at refractory surface, form one deck SiO
2settling shutoff pore, utilizes silicon powder shutoff refractory casting material layer internal porosity, with this, improves the resistance to fouling of refractory casting material.
Embodiment 1
(1) preparation of mould material:
3.0～2.0mm coarse aggregate 20, aggregate 35,0.5～0.01mm fine aggregate 15 in 1.5mm～1mm, binding agent 5, silicon powder 5, alumina powder 15, water 5.By said ratio, each raw material is weighed, is accompanied and, obtain the slurry of good fluidity, after shaping, maintenance and thermal treatment, test physicals.
(2) quantitative measurement:
After 110 ℃ * 24h is dried, folding strength 22.4MPa, compressive strength 164.7MPa;
After 1100 ℃ * 3H processes, folding strength 18.4MPa, compressive strength 149.5MPa;
After 1350 ℃ * 3H processes, folding strength 19.4MPa, compressive strength 161.3MPa.
Embodiment 2
(1) preparation of mould material:
Adopt coarse aggregate 22, middle aggregate accounts for 38, and fine aggregate accounts for 20, binding agent 7, silicon powder 2, alumina powder 8, water 3.By said ratio, each raw material is weighed, is accompanied and, obtain the slurry of good fluidity, after shaping, maintenance and thermal treatment, test physicals.
(2) physicals detects:
After 110 ℃ * 24h is dried, folding strength 20.8MPa, compressive strength 150.4MPa;
After 1100 ℃ * 3H processes, folding strength 15.8MPa, compressive strength 127.4MPa;
After 1350 ℃ * 3H processes, folding strength 15.7MPa, compressive strength 145.7MPa.
Embodiment 3
(1) preparation of mould material:
Adopt coarse aggregate 25, middle aggregate accounts for 25, and fine aggregate accounts for 20, binding agent 10, silicon powder 3, alumina powder 15, water 2.By said ratio, each raw material is weighed, is accompanied and, obtain the slurry of good fluidity, after shaping, maintenance and thermal treatment, test physicals.
(2) physicals detects:
After 110 ℃ * 24h is dried, folding strength 19.8MPa, compressive strength 152.8MPa;
After 1100 ℃ * 3H processes, folding strength 15.2MPa, compressive strength 131.4MPa;
After 1350 ℃ * 3H processes, folding strength 18.7MPa, compressive strength 155.3MPa.
As described above, it is only preferred embodiment of the present invention, when not limiting scope of the invention process with this, the simple equivalence of generally doing according to the present patent application the scope of the claims and invention description content changes and modifies, and all still remains within the scope of the patent.
Claims (6)
1. a high-strength abrasion-proof refractory castable, it is characterized in that: comprise coarse aggregate, middle aggregate, fine aggregate, binding agent, silicon powder, alumina powder and water, wherein the parts by weight of above-mentioned raw materials are: coarse aggregate 20～25, middle aggregate accounts for 35～40, fine aggregate accounts for 15～20, binding agent 5～10, silicon powder 5～10, alumina powder 10～15, water 1～5; Wherein, coarse aggregate is high grade bauxite; Middle aggregate comprises silicon carbide and mullite, and fine aggregate is high grade bauxite; Wherein, at binding agent, comprise that following parts by weight component makes: water glass 25～35, Magnesium Silicate q-agent 15～25, Sodium hexametaphosphate 99 30～60.
2. high-strength abrasion-proof refractory castable according to claim 1, is characterized in that: the size of described coarse aggregate is 3.0～2.0mm; In described middle aggregate, the size of each component is 1.5mm～1mm; The size of described fine aggregate is 0.5～0.01mm.
3. high-strength abrasion-proof refractory castable according to claim 2, is characterized in that: binding agent mesosilicic acid sodium is 30 parts, 20 parts of Magnesium Silicate q-agents, 50 parts of Sodium hexametaphosphate 99s.
4. high-strength abrasion-proof refractory castable according to claim 2, is characterized in that: the parts by weight of above-mentioned raw materials are specially: coarse aggregate 20, middle aggregate 35, fine aggregate 15, binding agent 5, silicon powder 5, alumina powder 15, water 5.
5. high-strength abrasion-proof refractory castable according to claim 2, is characterized in that: the parts by weight of above-mentioned raw materials are specially: coarse aggregate 22, and middle aggregate accounts for 38, and fine aggregate accounts for 20, binding agent 7, silicon powder 2, alumina powder 8, water 3.
6. high-strength abrasion-proof refractory castable according to claim 2, is characterized in that: the parts by weight of above-mentioned raw materials are specially: coarse aggregate 25, and middle aggregate accounts for 25, and fine aggregate accounts for 20, binding agent 10, silicon powder 3, alumina powder 15, water 2.
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| CN201310551506.7A CN103553688B (en) | 2013-11-09 | 2013-11-09 | High-strength abrasion-proof refractory castable |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675805A (en) * | 2018-06-14 | 2018-10-19 | 玉和建设有限公司 | A kind of mixed binding fire-resistant abrasion-proof is moldable |
| CN108821784A (en) * | 2018-06-19 | 2018-11-16 | 佘春霞 | A kind of high carbon black environmental protection castable in main trough |
| CN109415264A (en) * | 2016-06-30 | 2019-03-01 | 雷法技术控股有限公司 | Thermal resistance, fire resisting moulded liner, espespecially thermal resistance, fire resisting are molded liner plate and its preparation method and application |
| CN109678537A (en) * | 2019-01-25 | 2019-04-26 | 江苏长城窑炉工程有限公司 | A kind of high-temperature-resistant and anti-corrosion mullite silicon carbide cast preparation method for material |
| CN111747735A (en) * | 2020-07-09 | 2020-10-09 | 郑州市科源耐火材料有限公司 | Energy-saving environment-friendly refractory castable and refractory brick for zinc smelting volatilizing kiln and preparation method of refractory brick |
| CN111892392A (en) * | 2020-08-11 | 2020-11-06 | 中钢南京环境工程技术研究院有限公司 | Preparation method of complex-shaped refractory heat-insulating tile for heavy-duty gas turbine |
| CN115536408A (en) * | 2022-10-08 | 2022-12-30 | 宜兴兴贝耐火材料制品有限公司 | Silicon carbide self-flow castable for blast furnace lining and pouring construction method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367668A (en) * | 2008-09-25 | 2009-02-18 | 武汉钢铁(集团)公司 | Pouring material for manufacturing pellet ore rotary kiln and manufacturing method thereof |
-
2013
- 2013-11-09 CN CN201310551506.7A patent/CN103553688B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367668A (en) * | 2008-09-25 | 2009-02-18 | 武汉钢铁(集团)公司 | Pouring material for manufacturing pellet ore rotary kiln and manufacturing method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109415264A (en) * | 2016-06-30 | 2019-03-01 | 雷法技术控股有限公司 | Thermal resistance, fire resisting moulded liner, espespecially thermal resistance, fire resisting are molded liner plate and its preparation method and application |
| CN109415264B (en) * | 2016-06-30 | 2022-03-15 | 雷法技术控股有限公司 | Heat-resistant, fire-resistant moulded lining, in particular heat-resistant, fire-resistant moulded lining plate, method for the production thereof and use thereof |
| CN108675805A (en) * | 2018-06-14 | 2018-10-19 | 玉和建设有限公司 | A kind of mixed binding fire-resistant abrasion-proof is moldable |
| CN108821784A (en) * | 2018-06-19 | 2018-11-16 | 佘春霞 | A kind of high carbon black environmental protection castable in main trough |
| CN109678537A (en) * | 2019-01-25 | 2019-04-26 | 江苏长城窑炉工程有限公司 | A kind of high-temperature-resistant and anti-corrosion mullite silicon carbide cast preparation method for material |
| CN111747735A (en) * | 2020-07-09 | 2020-10-09 | 郑州市科源耐火材料有限公司 | Energy-saving environment-friendly refractory castable and refractory brick for zinc smelting volatilizing kiln and preparation method of refractory brick |
| CN111892392A (en) * | 2020-08-11 | 2020-11-06 | 中钢南京环境工程技术研究院有限公司 | Preparation method of complex-shaped refractory heat-insulating tile for heavy-duty gas turbine |
| CN115536408A (en) * | 2022-10-08 | 2022-12-30 | 宜兴兴贝耐火材料制品有限公司 | Silicon carbide self-flow castable for blast furnace lining and pouring construction method thereof |
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| CN103553688B (en) | 2015-09-16 |
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