CN115385681A - 一种镁铝铬尖晶石质浇注料及其制备方法 - Google Patents
一种镁铝铬尖晶石质浇注料及其制备方法 Download PDFInfo
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- 229910052596 spinel Inorganic materials 0.000 title claims abstract description 70
- 239000011029 spinel Substances 0.000 title claims abstract description 70
- -1 Magnesium-aluminum-chromium Chemical compound 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 82
- 239000000843 powder Substances 0.000 claims abstract description 43
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 42
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 42
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 42
- 235000014380 magnesium carbonate Nutrition 0.000 claims abstract description 42
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 41
- 239000002245 particle Substances 0.000 claims abstract description 37
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 30
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 18
- 239000010703 silicon Substances 0.000 claims abstract description 18
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- 230000003647 oxidation Effects 0.000 claims abstract description 15
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 15
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000000996 additive effect Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims abstract description 7
- 239000002893 slag Substances 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- 239000011651 chromium Substances 0.000 claims abstract description 5
- QRJOYPHTNNOAOJ-UHFFFAOYSA-N copper gold Chemical compound [Cu].[Au] QRJOYPHTNNOAOJ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000007797 corrosion Effects 0.000 claims abstract description 5
- 238000005260 corrosion Methods 0.000 claims abstract description 5
- 229910001112 rose gold Inorganic materials 0.000 claims abstract description 5
- 238000009991 scouring Methods 0.000 claims abstract description 5
- 230000004580 weight loss Effects 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 235000019580 granularity Nutrition 0.000 claims description 29
- 238000000227 grinding Methods 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 15
- 238000010891 electric arc Methods 0.000 claims description 14
- 239000004568 cement Substances 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 12
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 12
- 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 claims description 12
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 12
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 12
- 239000011777 magnesium Substances 0.000 claims description 11
- 229910052749 magnesium Inorganic materials 0.000 claims description 11
- 239000011449 brick Substances 0.000 claims description 6
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000007580 dry-mixing Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 239000005011 phenolic resin Substances 0.000 claims description 5
- 229920001568 phenolic resin Polymers 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229920001187 thermosetting polymer Polymers 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- 239000011819 refractory material Substances 0.000 abstract description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- NACUKFIFISCLOQ-UHFFFAOYSA-N [Mg].[Cr] Chemical compound [Mg].[Cr] NACUKFIFISCLOQ-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
本发明涉及耐火材料技术领域，且公开了一种镁铝铬尖晶石质浇注料及其制备方法，该镁铝铬尖晶石质浇注料由下述重量百分比的原料制成：电熔镁砂50～55％、巴基斯坦铬矿22～25％、α‑Al2O3粉5～8％、镁铝尖晶石10％、电熔氧化铬绿3％、硅微粉3～4％、添加剂5％，所述电熔镁砂的粒度组成为：5～3mm电熔镁砂10～15％、3～1mm电熔镁砂16～18％、1～0mm电熔镁砂8～10％、200目电熔镁砂15～20％。该镁铝铬尖晶石质浇注料及其制备方法，通过该镁铝铬尖晶石质浇注料在紫金铜业120T冰铜PS转炉试验过程中，熔损均匀，且无内部氧化现象，氧化失重率小，表现出良好的抗熔渣侵蚀性能、抗氧化性能及抗冲刷性能，平均使用炉龄在150炉。
Description
技术领域
本发明涉及耐火材料技术领域，具体为一种镁铝铬尖晶石质浇注料及其制备方法。
背景技术
镁铬浇注料因具有良好的高温性能、抗侵蚀性及挂窑皮性能等在洁净钢冶炼、炉外精炼、水泥等行业广泛应用，在镁铬浇注料中引入镁铝尖晶石，镁铝尖晶石和镁铬尖晶石形成的连续固溶体和复合尖晶石可明显提高镁铬质耐火材料高温性能和抗渣性能,可广泛应在艾萨炉、卡尔多炉、底吹炉、精炼炉等炉型中，在施工不便、结构特殊部位使用，这种新型的镁铝铬尖晶石质浇注料可解决镁铬浇注料耐磨性差，易剥落的问题，同时还良好的抗侵蚀性能，因此本发明提供了一种镁铝铬尖晶石质浇注料及其制备方法。
发明内容
(一)解决的技术问题
针对现有技术的不足，本发明提供了一种镁铝铬尖晶石质浇注料及其制备方法，解决了上述背景技术中提出的问题。
(二)技术方案
为实现以上目的，本发明提供如下技术方案：一种镁铝铬尖晶石质浇注料及其制备方法，该镁铝铬尖晶石质浇注料由下述重量百分比的原料制成：电熔镁砂50～55％、巴基斯坦铬矿22～25％、α-Al2O3粉5～8％、镁铝尖晶石10％、电熔氧化铬绿3％、硅微粉3～4％、添加剂5％，所述电熔镁砂的粒度组成为：5～3mm电熔镁砂10～15％、3～1mm电熔镁砂16～18％、1～0mm电熔镁砂8～10％、200目电熔镁砂15～20％。。
优选的，所述巴基斯坦矿粒度组成为：3-1mm巴基斯坦矿10～13％、1-0mm巴基斯坦矿12～15％，所述添加剂为CK71水泥、三聚磷酸钠、六偏磷酸钠、防爆纤维，所述电熔镁砂的镁含量≥97.5％，α-Al2O3粉和电熔氧化铬绿为超细粉，硅微粉的粒度为200目。
优选的，一种镁铝尖晶石质浇注料的制备方法，包括以下步骤：
a、取电熔镁砂、巴基斯坦铬矿、α-Al2O3粉、镁铝尖晶石、电熔氧化铬绿、硅微粉和热固性酚醛树脂，备用；
b、将电熔镁砂磨细，分级成5～3mm、3～1mm、1～0mm和200目五种不同粒度的颗粒原料，备用；
将巴基斯坦矿磨细，分级成3～1mm、1～0mm两种不同粒度的颗粒原料，备用；
将镁铝尖晶石磨成1～0mm粒度的颗粒原料，备用；
将α-Al2O3和电熔氧化铬绿均磨成粒度≤200目的细粉，得到α-Al2O3粉和电熔氧化铬绿粉，备用；
c、按重量百分比取电熔镁砂50～55％、巴基斯坦铬矿22～25％、α-Al2O3粉5～8％、镁铝尖晶石10％、电熔氧化铬绿3％、硅微粉3～4％、添加剂5％；
所述的电熔镁砂由以下重量百分比的不同粒度的电熔镁砂组成：5～3mm电熔镁砂10～15％、3～1mm电熔镁砂16～18％、1～0mm电熔镁砂8～10％、200目电熔镁砂15～20％备用；
所述的巴基斯坦矿由以下重量百分比的不同粒度的巴基斯坦矿组成：3-1mm巴基斯坦矿10～13％、1-0mm巴基斯坦矿12～15％；
所述的镁铝尖晶石为1-0mm的粒度
所述的添加剂为CK71水泥5％、三聚磷酸钠0.2％、六偏磷酸钠0.2％、防爆纤维0.1％；
d、将步骤c中5～3mm的电熔镁砂、3～1mm的电熔镁砂、1～0mm的电熔镁砂、3-1mm的巴基斯坦矿、1-0mm的巴基斯坦矿、1-0mm的镁铝尖晶石加入混碾机中，干混2～3min，然后加入硅微粉、电熔氧化铬绿粉、α-Al2O3粉、CK71水泥、三聚磷酸钠、六偏磷酸钠、防爆纤维，继续混碾3～5min，最后加入6.5％～7.5％的水，混碾5～7min，得到泥料；
e、将泥料放入模具经震动台震动成型，得到镁铝铬尖晶石质浇注料样块。
优选的，所述该镁铝铬尖晶石质浇注料在紫金铜业120T冰铜PS转炉试验过程中，熔损均匀，且无内部氧化现象，氧化失重率小，表现出良好的抗熔渣侵蚀性能、抗氧化性能及抗冲刷性能，平均使用炉龄在150炉。从该镁铝铬尖晶石质浇注料的试验使用效果看，电弧炉内衬用MgO-C砖在电弧炉工作衬的使用可以有效的提高电弧炉的使用寿命，降低耐材吨钢消耗。
(三)有益效果
与现有技术相比，本发明提供了一种镁铝铬尖晶石质浇注料及其制备方法，具备以下有益效果：
该镁铝铬尖晶石质浇注料及其制备方法，通过该镁铝铬尖晶石质浇注料在紫金铜业120T冰铜PS转炉试验过程中，熔损均匀，且无内部氧化现象，氧化失重率小，表现出良好的抗熔渣侵蚀性能、抗氧化性能及抗冲刷性能，平均使用炉龄在150炉。从该镁铝铬尖晶石质浇注料的试验使用效果看，电弧炉内衬用MgO-C砖在电弧炉工作衬的使用可以有效的提高电弧炉的使用寿命，降低耐材吨钢消耗。
附图说明
图1为本发明提出的一种镁铝铬尖晶石质浇注料及其制备方法浇注料样块的理化指标示意图；
图2为本发明提出的一种镁铝铬尖晶石质浇注料及其制备方法现有技术理化指标对比示意图。
具体实施方式
下面将结合本发明实施例中的附图，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。
实施例1
一种电弧炉内衬用镁碳砖的制备方法，包括以下步骤：
a、取电熔镁砂、巴基斯坦铬矿、α-Al2O3粉、镁铝尖晶石、电熔氧化铬绿、硅微粉和热固性酚醛树脂，备用；
b、将电熔镁砂磨细，分级成5～3mm、3～1mm、1～0mm和200目五种不同粒度的颗粒原料，备用；
将巴基斯坦矿磨细，分级成3～1mm、1～0mm两种不同粒度的颗粒原料，备用；
将镁铝尖晶石磨成1～0mm粒度的颗粒原料，备用；
将α-Al2O3和电熔氧化铬绿均磨成粒度≤200目的细粉，得到α-Al2O3粉和电熔氧化铬绿粉，备用；
c、按重量百分比取电熔镁砂50～55％、巴基斯坦铬矿22～25％、α-Al2O3粉5～8％、镁铝尖晶石10％、电熔氧化铬绿3％、硅微粉3～4％、添加剂5％；
所述的电熔镁砂由以下重量百分比的不同粒度的电熔镁砂组成：5～3mm电熔镁砂8～12％、3～1mm电熔镁砂20～22％、1～0mm电熔镁砂10～12％、200目电熔镁砂15～20％备用；
所述的巴基斯坦矿由以下重量百分比的不同粒度的巴基斯坦矿组成：3-1mm巴基斯坦矿8～10％、1-0mm巴基斯坦矿15～17％；
所述的镁铝尖晶石为1-0mm的粒度
所述的添加剂为CK71水泥5％、三聚磷酸钠0.2％、六偏磷酸钠0.2％、防爆纤维0.1％；
d、将步骤c中5～3mm的电熔镁砂、3～1mm的电熔镁砂、1～0mm的电熔镁砂、3-1mm的巴基斯坦矿、1-0mm的巴基斯坦矿、1-0mm的镁铝尖晶石加入混碾机中，干混2～3min，然后加入硅微粉、电熔氧化铬绿粉、α-Al2O3粉、CK71水泥、三聚磷酸钠、六偏磷酸钠、防爆纤维，继续混碾3～5min，最后加入6.5％～7.5％的水，混碾5～7min，得到泥料；
e、将泥料放入模具经震动台震动成型，得到镁铝铬尖晶石质浇注料样块
实施例2
一种电弧炉内衬用镁碳砖的制备方法，包括以下步骤：
a、取电熔镁砂、巴基斯坦铬矿、α-Al2O3粉、镁铝尖晶石、电熔氧化铬绿、硅微粉和热固性酚醛树脂，备用；
b、将电熔镁砂磨细，分级成5～3mm、3～1mm、1～0mm和200目五种不同粒度的颗粒原料，备用；
将巴基斯坦矿磨细，分级成3～1mm、1～0mm两种不同粒度的颗粒原料，备用；
将镁铝尖晶石磨成1～0mm粒度的颗粒原料，备用；
将α-Al2O3和电熔氧化铬绿均磨成粒度≤200目的细粉，得到α-Al2O3粉和电熔氧化铬绿粉，备用；
c、按重量百分比取电熔镁砂55～60％、巴基斯坦铬矿20～23％、α-Al2O3粉5～8％、镁铝尖晶石10％、电熔氧化铬绿3％、硅微粉3～4％、添加剂5％；
所述的电熔镁砂由以下重量百分比的不同粒度的电熔镁砂组成：5～3mm电熔镁砂10～13％、3～1mm电熔镁砂21～24％、1～0mm电熔镁砂8～10％、200目电熔镁砂15～20％备用；
所述的巴基斯坦矿由以下重量百分比的不同粒度的巴基斯坦矿组成：3-1mm巴基斯坦矿8～10％、1-0mm巴基斯坦矿15～17％；
所述的镁铝尖晶石为1-0mm的粒度；
所述的添加剂为CK71水泥5％、三聚磷酸钠0.2％、六偏磷酸钠0.2％、防爆纤维0.1％；
d、将步骤c中5～3mm的电熔镁砂、3～1mm的电熔镁砂、1～0mm的电熔镁砂、3-1mm的巴基斯坦矿、1-0mm的巴基斯坦矿、1-0mm的镁铝尖晶石加入混碾机中，干混2～3min，然后加入硅微粉、电熔氧化铬绿粉、α-Al2O3粉、CK71水泥、三聚磷酸钠、六偏磷酸钠、防爆纤维，继续混碾3～5min，最后加入6.5％～7.5％的水，混碾5～7min，得到泥料；
e、将泥料放入模具经震动台震动成型，得到镁铝铬尖晶石质浇注料样块。
工作步骤；a、取电熔镁砂、巴基斯坦铬矿、α-Al2O3粉、镁铝尖晶石、电熔氧化铬绿、硅微粉和热固性酚醛树脂，备用；
b、将电熔镁砂磨细，分级成5～3mm、3～1mm、1～0mm和200目五种不同粒度的颗粒原料，备用；
将巴基斯坦矿磨细，分级成3～1mm、1～0mm两种不同粒度的颗粒原料，备用；
将镁铝尖晶石磨成1～0mm粒度的颗粒原料，备用；
将α-Al2O3和电熔氧化铬绿均磨成粒度≤200目的细粉，得到α-Al2O3粉和电熔氧化铬绿粉，备用；
c、按重量百分比取电熔镁砂50～55％、巴基斯坦铬矿22～25％、α-Al2O3粉5～8％、镁铝尖晶石10％、电熔氧化铬绿3％、硅微粉3～4％、添加剂5％；
所述的电熔镁砂由以下重量百分比的不同粒度的电熔镁砂组成：5～3mm电熔镁砂10～15％、3～1mm电熔镁砂16～18％、1～0mm电熔镁砂8～10％、200目电熔镁砂15～20％备用；
所述的巴基斯坦矿由以下重量百分比的不同粒度的巴基斯坦矿组成：3-1mm巴基斯坦矿10～13％、1-0mm巴基斯坦矿12～15％；
所述的镁铝尖晶石为1-0mm的粒度
所述的添加剂为CK71水泥5％、三聚磷酸钠0.2％、六偏磷酸钠0.2％、防爆纤维0.1％；
d、将步骤c中5～3mm的电熔镁砂、3～1mm的电熔镁砂、1～0mm的电熔镁砂、3-1mm的巴基斯坦矿、1-0mm的巴基斯坦矿、1-0mm的镁铝尖晶石加入混碾机中，干混2～3min，然后加入硅微粉、电熔氧化铬绿粉、α-Al2O3粉、CK71水泥、三聚磷酸钠、六偏磷酸钠、防爆纤维，继续混碾3～5min，最后加入6.5％～7.5％的水，混碾5～7min，得到泥料；
e、将泥料放入模具经震动台震动成型，得到镁铝铬尖晶石质浇注料样块。
综上所述，该镁铝铬尖晶石质浇注料及其制备方法，通过该镁铝铬尖晶石质浇注料在紫金铜业120T冰铜PS转炉试验过程中，熔损均匀，且无内部氧化现象，氧化失重率小，表现出良好的抗熔渣侵蚀性能、抗氧化性能及抗冲刷性能，平均使用炉龄在150炉。从该镁铝铬尖晶石质浇注料的试验使用效果看，电弧炉内衬用MgO-C砖在电弧炉工作衬的使用可以有效的提高电弧炉的使用寿命，降低耐材吨钢消耗。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。
Claims (4)
1.一种镁铝铬尖晶石质浇注料及其制备方法，其特征在于：该镁铝铬尖晶石质浇注料由下述重量百分比的原料制成：电熔镁砂50～55％、巴基斯坦铬矿22～25％、α-Al2O3粉5～8％、镁铝尖晶石10％、电熔氧化铬绿3％、硅微粉3～4％、添加剂5％，所述电熔镁砂的粒度组成为：5～3mm电熔镁砂10～15％、3～1mm电熔镁砂16～18％、1～0mm电熔镁砂8～10％、200目电熔镁砂15～20％。
2.根据权利要求1所述的一种镁铝铬尖晶石质浇注料及其制备方法，其特征在于：所述巴基斯坦矿粒度组成为：3-1mm巴基斯坦矿10～13％、1-0mm巴基斯坦矿12～15％，所述添加剂为CK71水泥、三聚磷酸钠、六偏磷酸钠、防爆纤维，所述电熔镁砂的镁含量≥97.5％，α-Al2O3粉和电熔氧化铬绿为超细粉，硅微粉的粒度为200目。
3.根据权利要求1所述的一种镁铝铬尖晶石质浇注料及其制备方法，其特征在于：一种镁铝尖晶石质浇注料的制备方法，包括以下步骤：
a、取电熔镁砂、巴基斯坦铬矿、α-Al2O3粉、镁铝尖晶石、电熔氧化铬绿、硅微粉和热固性酚醛树脂，备用；
b、将电熔镁砂磨细，分级成5～3mm、3～1mm、1～0mm和200目五种不同粒度的颗粒原料，备用；
将巴基斯坦矿磨细，分级成3～1mm、1～0mm两种不同粒度的颗粒原料，备用；
将镁铝尖晶石磨成1～0mm粒度的颗粒原料，备用；
将α-Al2O3和电熔氧化铬绿均磨成粒度≤200目的细粉，得到α-Al2O3粉和电熔氧化铬绿粉，备用；
c、按重量百分比取电熔镁砂50～55％、巴基斯坦铬矿22～25％、α-Al2O3粉5～8％、镁铝尖晶石10％、电熔氧化铬绿3％、硅微粉3～4％、添加剂5％；
所述的电熔镁砂由以下重量百分比的不同粒度的电熔镁砂组成：5～3mm电熔镁砂10～15％、3～1mm电熔镁砂16～18％、1～0mm电熔镁砂8～10％、200目电熔镁砂15～20％备用；
所述的巴基斯坦矿由以下重量百分比的不同粒度的巴基斯坦矿组成：3-1mm巴基斯坦矿10～13％、1-0mm巴基斯坦矿12～15％；
所述的镁铝尖晶石为1-0mm的粒度
所述的添加剂为CK71水泥5％、三聚磷酸钠0.2％、六偏磷酸钠0.2％、防爆纤维0.1％；
d、将步骤c中5～3mm的电熔镁砂、3～1mm的电熔镁砂、1～0mm的电熔镁砂、3-1mm的巴基斯坦矿、1-0mm的巴基斯坦矿、1-0mm的镁铝尖晶石加入混碾机中，干混2～3min，然后加入硅微粉、电熔氧化铬绿粉、α-Al2O3粉、CK71水泥、三聚磷酸钠、六偏磷酸钠、防爆纤维，继续混碾3～5min，最后加入6.5％～7.5％的水，混碾5～7min，得到泥料；
e、将泥料放入模具经震动台震动成型，得到镁铝铬尖晶石质浇注料样块。
4.根据权利要求1所述的一种镁铝铬尖晶石质浇注料及其制备方法，其特征在于：所述该镁铝铬尖晶石质浇注料在紫金铜业120T冰铜PS转炉试验过程中，熔损均匀，且无内部氧化现象，氧化失重率小，表现出良好的抗熔渣侵蚀性能、抗氧化性能及抗冲刷性能，平均使用炉龄在150炉。从该镁铝铬尖晶石质浇注料的试验使用效果看，电弧炉内衬用MgO-C砖在电弧炉工作衬的使用可以有效的提高电弧炉的使用寿命，降低耐材吨钢消耗。
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| JP2014084269A (ja) * | 2012-10-26 | 2014-05-12 | Yotai Refractories Co Ltd | 非鉄金属製錬容器用キャスタブル耐火物及びそれを用いたプレキャストブロック |
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| CN116239370A (zh) * | 2023-04-03 | 2023-06-09 | 宜兴金君耐火炉料有限公司 | 用于低氧铜杆生产中延长流槽寿命的99浇注料及制备方法 |
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