CN114836062A - 一种中间包镁质无磷涂抹料 - Google Patents
一种中间包镁质无磷涂抹料 Download PDFInfo
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- 239000011248 coating agent Substances 0.000 title claims abstract description 56
- 238000000576 coating method Methods 0.000 title claims abstract description 56
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000011777 magnesium Substances 0.000 title claims abstract description 24
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 24
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 33
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 33
- 239000002245 particle Substances 0.000 claims abstract description 30
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 27
- 235000014380 magnesium carbonate Nutrition 0.000 claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 23
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 21
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims abstract description 20
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 17
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 17
- QRNPTSGPQSOPQK-UHFFFAOYSA-N magnesium zirconium Chemical compound [Mg].[Zr] QRNPTSGPQSOPQK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004375 Dextrin Substances 0.000 claims abstract description 13
- 229920001353 Dextrin Polymers 0.000 claims abstract description 13
- 235000019425 dextrin Nutrition 0.000 claims abstract description 13
- 239000000440 bentonite Substances 0.000 claims abstract description 12
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 12
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims abstract description 10
- 235000019341 magnesium sulphate Nutrition 0.000 claims abstract description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 239000010703 silicon Substances 0.000 claims abstract description 9
- 239000004568 cement Substances 0.000 claims abstract description 7
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 12
- 239000011574 phosphorus Substances 0.000 claims description 12
- 229910052698 phosphorus Inorganic materials 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 238000003723 Smelting Methods 0.000 claims description 7
- 239000011449 brick Substances 0.000 claims description 7
- 239000000395 magnesium oxide Substances 0.000 claims description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 4
- 229910052906 cristobalite Inorganic materials 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 229910052682 stishovite Inorganic materials 0.000 claims description 4
- 229910052905 tridymite Inorganic materials 0.000 claims description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- WRUGWIBCXHJTDG-UHFFFAOYSA-L magnesium sulfate heptahydrate Chemical group O.O.O.O.O.O.O.[Mg+2].[O-]S([O-])(=O)=O WRUGWIBCXHJTDG-UHFFFAOYSA-L 0.000 claims description 3
- 229940061634 magnesium sulfate heptahydrate Drugs 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims 1
- 239000010452 phosphate Substances 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims 1
- 239000011819 refractory material Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 12
- 238000012360 testing method Methods 0.000 description 11
- 239000004927 clay Substances 0.000 description 8
- 239000002893 slag Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 235000019832 sodium triphosphate Nutrition 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000009749 continuous casting Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 3
- 235000019799 monosodium phosphate Nutrition 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 3
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 3
- 229920000388 Polyphosphate Polymers 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 2
- 229910052839 forsterite Inorganic materials 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 2
- 159000000003 magnesium salts Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000001205 polyphosphate Substances 0.000 description 2
- 235000011176 polyphosphates Nutrition 0.000 description 2
- 229920002689 polyvinyl acetate Polymers 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- MKPXGEVFQSIKGE-UHFFFAOYSA-N [Mg].[Si] Chemical compound [Mg].[Si] MKPXGEVFQSIKGE-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- YJGHGAPHHZGFMF-UHFFFAOYSA-K magnesium;sodium;phosphate Chemical compound [Na+].[Mg+2].[O-]P([O-])([O-])=O YJGHGAPHHZGFMF-UHFFFAOYSA-K 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001479 sodium magnesium phosphate Inorganic materials 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- -1 strength reduction Substances 0.000 description 1
- 239000008030 superplasticizer Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
本发明涉及中间包工作层耐火材料技术领域,尤其为一种中间包镁质无磷涂抹料,其原料组份质量百分比为:粒径3‑1mm的91镁砂为23~27%、粒径1‑0mm的91镁砂为35~37%、粒径200目的95镁砂为20~22%、镁锆粉为2~4%、膨润土为1~2%、硅微粉为3~5%、轻烧镁粉为3~4%、氧化铝为0.5~1.5%、硫酸镁为1~2%、纸纤维为0.7~0.9%、有机纤维为0.01~0.02%、70水泥为0.5~1%、金属铝粉为0.02~0.04%、糊精为0.2~0.4%、柠檬酸为0.3~0.5%和硅酸钠为2~3%,本发明通过设计现有技术相比,本方案不含磷元素、使用寿命长、回弹率小、成本低、涂抹性能好和易于现场施工的优点。
Description
技术领域
本发明涉及中间包工作层耐火材料技术领域,尤其涉及一种中间包镁质无磷涂抹料。
背景技术
镁质涂抹料由于具有耐火度高、抗碱性渣液侵蚀性强、价格合适、能够净化钢水等优点,被广泛应用在连铸工序的中间包工作衬,使中间包工作衬的使用寿命大幅度提升。目前,在镁质中间包涂抹料中常用的结合剂体系为聚磷酸盐体系,主要结合剂为三聚磷酸钠、六偏磷酸钠,三聚磷酸钠与水反应生成磷酸一氢钠、磷酸二氢钠,二者与镁砂反应生成钠镁磷酸盐,从而使涂抹料产生强度,而六偏磷酸钠则与水反应生成了磷酸二氢钠,进而与镁砂反应使涂抹料产生强度。
而在钢铁冶炼过程中,尤其是洁净钢冶炼过程中,磷是一种危害性极大的杂质元素,例如对低温韧性要求特别高的精品钢,则要求钢材中磷含量低于0.005wt%,甚至更低,此时中间包涂抹料结合剂中的聚磷酸盐体系残余的磷元素必须加以避免,防止对钢水造成污染,因而,开发出不含磷元素的中间包镁质无磷涂抹料结合剂体系刻不容缓,也是降低钢材中磷元素的重要因素之一。
中国发明专利(申请号:202010174658X)公布了一种无磷低硅镁质涂抹料,按照质量分数计算,包括如下各组分组成:电熔镁砂:70~80%、硅酸钠:1.0~1.5%、改性软质粘土:1.5~3.0%、镁盐型促进剂:1.0~1.5%、纸纤维:0.5~1.5%、洁净剂:1.0~1.5%、HSB脂肪族高效减水剂:1.5~2%、余量为水;此方案与现有技术相比,其中磷含量小于0.05%,且通过硅酸钠、镁盐型促进剂和HSB脂肪族高效减水剂的配合提高了各个组分之间的结合能力,同时HSB脂肪族高效减水剂与改性软质粘土的配合能够提高涂抹料的可塑性;纸纤维的添加调节了本涂抹料的体积密度,提高了本涂抹料在使用时的隔热和保温能力。
中国发明专利(申请号:2009100612933)公布了一种连铸中间包工作衬涂料及其生产工艺,该涂料的成份按重量份数计为:镁橄榄石生料50~90份、镁砂10~50份、复合添加剂3~5份,其中复合添加剂为有机纤维、纸纤维、石灰、三聚磷酸钠、六偏磷酸钠、粘土或硅酸盐中的至少一种。该涂料的生产工艺为:按所述重量比例取镁橄榄石生料、镁砂和复合添加剂,混合搅拌均匀,使混合物无明显白料,即可获得连铸中间包工作衬用涂料。该涂料的涂抹性能良好,不垮包、烧结性能良好、抗冲刷、抗渣侵蚀和抗剥落性能好,环保无污染、使用寿命长,生产成本低,且该涂料的制备方法简便易行。
中国发明专利(申请号:201410199542.6)公布了一种中间包超低硅镁质涂料,所述涂料是由以下重量份的原料组成:95镁砂250~300、97镁砂500~700、粘土20~40、膨润土10~30、α-Al2O320~40、纸纤维10~20、木质素1~2、三聚磷酸钠0~3、金属铝0.1~0.5、十二烷基磺酸钠0.01~0.15、聚乙烯醇0.5~2。此方案中使用聚乙烯醇作为成膜剂,从而在放入少量凝胶材料时就能达到良好的塑性(涂抹性能)。此方案中使用超细纳米级高粘性球状粘土代替传统涂料中的硅微粉、广西泥和高岭土,配合成膜剂PVA,就能达到良好的施工性能。同样的涂料涂抹性能,此方案的涂料只需加入超细纳米级高粘性球状粘土2%,而传统镁质涂料则需硅微粉(4~6%)、普通粘土(1~2%),解决硅微粉中游离SiO2的带入问题。
发明内容
本发明的目的在于提供一种中间包镁质无磷涂抹料,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:
一种中间包镁质无磷涂抹料,其原料组份质量百分比为:粒径3-1mm的91镁砂为23~27%、粒径1-0mm的91镁砂为35~37%、粒径200目的95镁砂为20~22%、镁锆粉为2~4%、膨润土为1~2%、硅微粉为3~5%、轻烧镁粉为3~4%、氧化铝为0.5~1.5%、硫酸镁为1~2%、纸纤维为0.7~0.9%、有机纤维为0.01~0.02%、70水泥为0.5~1%、金属铝粉为0.02~0.04%、糊精为0.2~0.4%、柠檬酸为0.3~0.5%和硅酸钠为2~3%。
作为本发明优选的方案,所述粒径3-1mm的91镁砂为25%、粒径1-0mm的91镁砂为36%、粒径200目的95镁砂为20.5%、镁锆粉为3%、膨润土为1.5%、硅微粉为3.5%、轻烧镁粉为3.3%、氧化铝为1.3%、硫酸镁为1.2%、纸纤维为0.8%、有机纤维为0.02%、70水泥为0.7%、金属铝粉为0.03%、糊精为0.3%、柠檬酸为0.35%和硅酸钠为2.5%。
作为本发明优选的方案,所述镁锆砖为非铁金属冶炼回收利用废料,粒度为325目,MgO≥70%,ZrO2≥10%,荷重软化温度≥1600℃。
作为本发明优选的方案,所述膨润土粒度为325目;硅微粉中SiO2≥95%;氧化铝的粒度为1μm;硫酸镁为七水硫酸镁;有机纤维熔点为105℃;金属铝粉为80目,Al≥98%;糊精为白糊精;硅酸钠为固体,模数为2.85。
作为本发明优选的方案,所述硅酸钠粒度为40~100目≥95wt%。
作为本发明优选的方案,所述镁质无磷涂抹料适用于人工涂抹施工。
与现有技术相比,本发明的有益效果是:
1、本发明中,通过采用非铁金属冶炼回收利用废料镁锆砖粉,能够在高温使用条件下,增大填充于涂抹料空隙中渣液与涂抹层反应后生成物的粘性,从而形成高粘性保护层,减缓渣液向涂抹料内部的进一步侵蚀,从而现有技术相比,本方案不含磷元素、使用寿命长、回弹率小、成本低、涂抹性能好和易于现场施工的优点。
具体实施方式
下面将结合本发明实施例中,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例,基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本发明提供一种技术方案:
一种中间包镁质无磷涂抹料,其原料组份质量百分比为:粒径3-1mm的91镁砂为23~27%、粒径1-0mm的91镁砂为35~37%、粒径200目的95镁砂为20~22%、镁锆粉为2~4%、膨润土为1~2%、硅微粉为3~5%、轻烧镁粉为3~4%、氧化铝为0.5~1.5%、硫酸镁为1~2%、纸纤维为0.7~0.9%、有机纤维为0.01~0.02%、70水泥为0.5~1%、金属铝粉为0.02~0.04%、糊精为0.2~0.4%、柠檬酸为0.3~0.5%和硅酸钠为2~3%。
作为本发明的一种优选实施方式,所述粒径3-1mm的91镁砂为25%、粒径1-0mm的91镁砂为36%、粒径200目的95镁砂为20.5%、镁锆粉为3%、膨润土为1.5%、硅微粉为3.5%、轻烧镁粉为3.3%、氧化铝为1.3%、硫酸镁为1.2%、纸纤维为0.8%、有机纤维为0.02%、70水泥为0.7%、金属铝粉为0.03%、糊精为0.3%、柠檬酸为0.35%和硅酸钠为2.5%。
作为本发明的一种优选实施方式,所述镁锆砖为非铁金属冶炼回收利用废料,粒度为325目,MgO≥70%,ZrO2≥10%,荷重软化温度≥1600℃。
作为本发明的一种优选实施方式,所述膨润土粒度为325目;硅微粉中SiO2≥95%;氧化铝的粒度为1μm;硫酸镁为七水硫酸镁;有机纤维熔点为105℃;金属铝粉为80目,Al≥98%;糊精为白糊精;硅酸钠为固体,模数为2.85。
作为本发明的一种优选实施方式,所述硅酸钠粒度为40~100目≥95wt%。
作为本发明的一种优选实施方式,所述镁质无磷涂抹料适用于人工涂抹施工。
具体实施案例:
实施例1~6和对比例1~4的一种中间包镁质无磷涂抹料,其原料组份质量分数见表1,其中由于镁锆砖粉为回收料,来源受限,因此添加量在2~4wt%,且添加过多时,对涂抹料的低温抗折强度、耐压强度不利。
表1实施例1~6和对比例1~4的原料组成(wt%)
本方案的无磷中间包喷涂料,合格产品检测指标范围为:加水率≤20wt%;流动性≥170mm且≤183mm;体积密度≥2.0g·cm3且≤2.2g·cm3;线变化率在1100℃/3h为-0.6~0%,在1550℃/3h为-2.5~0%;抗折强度在110℃为≥2.5MPa,在1100℃/3h为≥1.4MPa,在1550℃/3h为≥3MPa且≤5MPa;耐压强度在110℃为≥8.0MPa,在1100℃/3h为≥2.5MPa,在1550℃/3h为≥8.0MPa且≤25MPa;回弹率≤5wt%;抗渣性方面:抗渗透性允许部分渗透,抗侵蚀性为无侵蚀;
将实施例1~6和对比例1~4的一种中间包镁质无磷涂抹料,制样按GB/T4513.5进行样条制备,流动性测试按GB/T 4513.4进行测试,体积密度、线变化率、抗折强度、耐压强度的测试按GB/T 4513.6中的测试方法进行,回弹率在涂抹料进行人工涂抹时测量散落下部涂抹料的重量后进行计算;抗渣性采用静态坩埚法判定,观察坩埚中间剖面耐材的抗渗透和抗侵蚀状况;测试结果列于表2中;
表2实施例1~6和对比例1~4的测试结果
从表1、表2中的数据比较可知:本方案的一种中间包镁质无磷涂抹料具有不含磷元素、使用寿命长、回弹率小、成本低、涂抹性能好和易于现场施工的优点;
对比例1中硅酸钠为3.5wt%含量偏高,导致使用加水混料时加水率过大,且硅酸钠含量过高,对涂抹料的抗渣性能不利,在使用过程中易于烧结而引发翻包困难;测试结果表明,加水率为22.4%,流动性为169mm,线变化率在1550℃/3h为-4.67%,抗折强度在1550℃为7.8MPa,耐压强度在1550℃为28.41MPa,回弹率为9.6wt%,抗渗透性为渗透严重,抗侵蚀性为少量侵蚀,检测结果不合格;
对比例2中纸纤维为1.3wt%含量偏高,引起涂抹料在混料时加水过多,进而导致烘烤后的涂抹料中空隙过多,强度下降,抗渣性降低,表面易于开裂,容易发生蹋包事故;测试结果表明,加水率为22.1%,体积密度为1.85g·cm3,线变化率在1100℃/3h为-0.64%,在1550℃/3h为-4.86%,抗折强度在110℃为1.7MPa,在1100℃/3h为0.8MPa,在1550℃/3h为2.7MPa,耐压强度在110℃为4.67MPa,在1100℃/3h为1.04MPa,在1550℃/3h为7.45MPa,抗渗透性为渗透严重,抗侵蚀性为少量侵蚀,烘烤后涂抹层出现深层开裂,检测结果不合格;
对比例3中膨润土为3.5wt%含量偏高,对涂抹料的泥性有利,但增大了加水率,且显著降低了中低温强度,烘烤后易于出现表层开裂现象;测试结果表明,加水率为21.8%,抗折强度在110℃为2.2MPa,在1100℃/3h为1.0MPa,耐压强度在110℃为5.45MPa,在1100℃/3h为1.27MPa,烘烤后涂抹层出现表面开裂,检测结果不合格;
对比例4中粒径3-1mm的91镁砂为31wt%含量偏高,粒径1-0mm的91镁砂为31.4wt%,含量偏低,导致颗粒级配发生较大的变化,大颗粒过多,使得涂抹料的涂抹性能下降,粘性降低和回弹率上升,引起强度下降,有利的是降低了加水率,烘烤后不易开裂。测试结果表明,耐压强度在1110℃/3h为1.78MPa,施工时回弹率为7.2wt%,检测结果不合格。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (6)
1.一种中间包镁质无磷涂抹料,其特征在于,其原料组份质量百分比为:粒径3-1mm的91镁砂为23~27%、粒径1-0mm的91镁砂为35~37%、粒径200目的95镁砂为20~22%、镁锆粉为2~4%、膨润土为1~2%、硅微粉为3~5%、轻烧镁粉为3~4%、氧化铝为0.5~1.5%、硫酸镁为1~2%、纸纤维为0.7~0.9%、有机纤维为0.01~0.02%、70水泥为0.5~1%、金属铝粉为0.02~0.04%、糊精为0.2~0.4%、柠檬酸为0.3~0.5%和硅酸钠为2~3%。
2.如权利要求1所述的一种中间包镁质无磷涂抹料,其特征在于,所述粒径3-1mm的91镁砂为25%、粒径1-0mm的91镁砂为36%、粒径200目的95镁砂为20.5%、镁锆粉为3%、膨润土为1.5%、硅微粉为3.5%、轻烧镁粉为3.3%、氧化铝为1.3%、硫酸镁为1.2%、纸纤维为0.8%、有机纤维为0.02%、70水泥为0.7%、金属铝粉为0.03%、糊精为0.3%、柠檬酸为0.35%和硅酸钠为2.5%。
3.如权利要求1所述的一种中间包镁质无磷涂抹料,其特征在于,所述镁锆砖为非铁金属冶炼回收利用废料,粒度为325目,MgO≥70%,ZrO2≥10%,荷重软化温度≥1600℃。
4.如权利要求1所述的一种中间包镁质无磷涂抹料,其特征在于,所述膨润土粒度为325目;硅微粉中SiO2≥95%;氧化铝的粒度为1μm;硫酸镁为七水硫酸镁;有机纤维熔点为105℃;金属铝粉为80目,Al≥98%;糊精为白糊精;硅酸钠为固体,模数为2.85。
5.如权利要求1所述的一种中间包镁质无磷涂抹料,其特征在于,所述硅酸钠粒度为40~100目≥95wt%。
6.如权利要求1所述的一种中间包镁质无磷涂抹料,其特征在于,所述镁质无磷涂抹料适用于人工涂抹施工。
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Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1651352A (zh) * | 2004-11-26 | 2005-08-10 | 武汉科技大学 | 一种连铸用中间包干式振动料及其制备方法 |
WO2007061070A1 (ja) * | 2005-11-25 | 2007-05-31 | Shinagawa Refractories Co., Ltd. | 耐火れんが |
CN102276268A (zh) * | 2011-06-11 | 2011-12-14 | 中钢集团耐火材料有限公司 | 一种真空精炼炉用镁锆复合材料及制备方法 |
CN102451906A (zh) * | 2010-10-22 | 2012-05-16 | 上海梅山钢铁股份有限公司 | 一种炼钢连铸镁锆质中间包涂料 |
CN103058693A (zh) * | 2013-02-01 | 2013-04-24 | 武汉科技大学 | 一种洁净钢冶炼用中间包工作衬及其制备方法 |
CN106915953A (zh) * | 2017-04-01 | 2017-07-04 | 海城市中兴镁质合成材料有限公司 | 一种采用废镁铬砖的中间包干式料及其生产方式 |
CN110452006A (zh) * | 2019-09-24 | 2019-11-15 | 瑞泰马钢新材料科技有限公司 | 一种低成本镁锆碳质防氧化涂料及其制备方法 |
DE202017007171U1 (de) * | 2017-09-15 | 2019-12-11 | Refratechnik Holding Gmbh | Poröse Sintermagnesia, Versatz zur Herstellung eines grobkeramischen feuerfesten Erzeugnisses mit einer Körnung aus der Sintermagnesia, derartiges Erzeugnis sowie Zustellung eines Industrieofens und Industrieofen |
CN111233500A (zh) * | 2020-03-13 | 2020-06-05 | 浙江欣辉耐火材料股份有限公司 | 一种无磷低硅镁质涂抹料及其制备方法 |
CN113387687A (zh) * | 2021-07-05 | 2021-09-14 | 上海利尔耐火材料有限公司 | 一种炼钢中间包工作层用环保型干式料 |
-
2022
- 2022-05-11 CN CN202210509600.5A patent/CN114836062B/zh active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1651352A (zh) * | 2004-11-26 | 2005-08-10 | 武汉科技大学 | 一种连铸用中间包干式振动料及其制备方法 |
WO2007061070A1 (ja) * | 2005-11-25 | 2007-05-31 | Shinagawa Refractories Co., Ltd. | 耐火れんが |
CN102451906A (zh) * | 2010-10-22 | 2012-05-16 | 上海梅山钢铁股份有限公司 | 一种炼钢连铸镁锆质中间包涂料 |
CN102276268A (zh) * | 2011-06-11 | 2011-12-14 | 中钢集团耐火材料有限公司 | 一种真空精炼炉用镁锆复合材料及制备方法 |
CN103058693A (zh) * | 2013-02-01 | 2013-04-24 | 武汉科技大学 | 一种洁净钢冶炼用中间包工作衬及其制备方法 |
CN106915953A (zh) * | 2017-04-01 | 2017-07-04 | 海城市中兴镁质合成材料有限公司 | 一种采用废镁铬砖的中间包干式料及其生产方式 |
DE202017007171U1 (de) * | 2017-09-15 | 2019-12-11 | Refratechnik Holding Gmbh | Poröse Sintermagnesia, Versatz zur Herstellung eines grobkeramischen feuerfesten Erzeugnisses mit einer Körnung aus der Sintermagnesia, derartiges Erzeugnis sowie Zustellung eines Industrieofens und Industrieofen |
CN110452006A (zh) * | 2019-09-24 | 2019-11-15 | 瑞泰马钢新材料科技有限公司 | 一种低成本镁锆碳质防氧化涂料及其制备方法 |
CN111233500A (zh) * | 2020-03-13 | 2020-06-05 | 浙江欣辉耐火材料股份有限公司 | 一种无磷低硅镁质涂抹料及其制备方法 |
CN113387687A (zh) * | 2021-07-05 | 2021-09-14 | 上海利尔耐火材料有限公司 | 一种炼钢中间包工作层用环保型干式料 |
Non-Patent Citations (3)
Title |
---|
徐平坤: "耐火材料新工艺技术》", 31 January 2020, 冶金工业出版社, pages: 280 * |
李莉;: "镁质耐火材料发展趋势", 辽宁建材, no. 10, 27 October 2010 (2010-10-27), pages 48 - 49 * |
林宗寿: "《熟料煅烧操作及耐火材料》", 31 August 2021, 武汉理工大学出版社, pages: 344 * |
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