CN106083073A - 镁钙锆耐火材料及其制备方法 - Google Patents

镁钙锆耐火材料及其制备方法 Download PDF

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CN106083073A
CN106083073A CN201610385195.5A CN201610385195A CN106083073A CN 106083073 A CN106083073 A CN 106083073A CN 201610385195 A CN201610385195 A CN 201610385195A CN 106083073 A CN106083073 A CN 106083073A
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parts
refractory material
magnesium calcium
magnesite
granularity
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钱元英
匡宇航
蒋才南
李剑锋
盛红
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Yixing Xinwei Leeshing Refractory Materials Co Ltd
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    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • C04B35/0435—Refractories from grain sized mixtures containing refractory metal compounds other than chromium oxide or chrome ore
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
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    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof

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Abstract

本发明涉及耐火材料技术领域，特别涉及镁钙锆耐火材料及其制备方法。镁钙锆耐火材料，按照重量份数由以下原料制成：锆英砂10~25份、白云石24~30份、氧化锆5~10份，电熔镁砂15～20份、高纯镁砂25～30份、氧化锆空心球0.5～0.8份、石蜡2～4份。本发明提供的镁钙锆耐火材料及其制备方法，具有优异的热震稳定性能，提高了产品的使用寿命，减低生产成本。

Description

镁钙锆耐火材料及其制备方法
技术领域
本发明涉及耐火材料技术领域，特别涉及镁钙锆耐火材料及其制备方法。
背景技术
钢包作为炉外精炼的关键功能元件，使用性能对保证炉外精炼工艺的可靠性和安全性起着至关重要的作用。钢包在维护吹氧时会容易受到熔蚀、在反吹气体时会引起热震作用以及在使用过程中温度的周期性变化所引起的热震作用，热震破坏是引起钢包的镁钙锆耐火砖损毁的主要原因之一。
发明内容
为了克服上述问题，本发明提出了一种抗热震性良好的炼钢精炼系统用烧成镁钙锆砖及其制备方法。
具体的技术方案为：
镁钙锆耐火材料，按照重量份数由以下原料制成：锆英砂10~25份、白云石24~30份、氧化锆5~10份，电熔镁砂15～20份、高纯镁砂25～30份、氧化锆空心球0.5～0.8份、石蜡2～4份。
其中，所述的电熔镁砂粒度为1～3mm。
所述的高纯镁砂粒度为0.05～0.08mm。
所述的氧化锆空心球粒度为0.5～1mm。
该镁钙锆耐火材料的制备方法，包括以下步骤：
（1）锆英砂、白云石、氧化锆制备成5～8mm粉，高压干法压球成型，然后通过高温回转窑烧成；
（2）步骤（1）烧成的材料与电熔镁砂、高纯镁、氧化锆空心球混合，制成干料半成品；
（3）将配好的原料送入混料机内加石蜡混练，混料的时间20~30分钟；
（4）混料后用液压机成型，成型体密大于2.90g/cm3；
（5）在1600℃的高温隧道窑内进行烧成，保温8小时。
本发明提供的镁钙锆耐火材料及其制备方法，具有优异的热震稳定性能，提高了产品的使用寿命，减低生产成本。
具体实施方式
结合实施例说明本发明的具体实施方式。
实施例1
镁钙锆耐火材料，按照重量份数由以下原料制成：锆英砂25份、白云石28份、氧化锆5份，电熔镁砂18份、高纯镁砂28份、氧化锆空心球0.6份、石蜡2份。
其中，所述的电熔镁砂粒度为1～3mm。
所述的高纯镁砂粒度为0.05～0.08mm。
所述的氧化锆空心球粒度为0.5～1mm。
该镁钙锆耐火材料的制备方法，包括以下步骤：
（1）锆英砂、白云石、氧化锆制备成5～8mm粉，高压干法压球成型，然后通过高温回转窑烧成；
（2）步骤（1）烧成的材料与电熔镁砂、高纯镁、氧化锆空心球混合，制成干料半成品；
（3）将配好的原料送入混料机内加石蜡混练，混料的时间20~30分钟；
（4）混料后用液压机成型，成型体密大于2.90g/cm3；
（5）在1600℃的高温隧道窑内进行烧成，保温8小时。
实施例2
镁钙锆耐火材料，按照重量份数由以下原料制成：锆英砂25份、白云石24份、氧化锆10份，电熔镁砂15份、高纯镁砂30份、氧化锆空心球0.8份、石蜡4份。
其中，所述的电熔镁砂粒度为1～3mm。
所述的高纯镁砂粒度为0.05～0.08mm。
所述的氧化锆空心球粒度为0.5～1mm。
该镁钙锆耐火材料的制备方法，包括以下步骤：
（1）锆英砂、白云石、氧化锆制备成5～8mm粉，高压干法压球成型，然后通过高温回转窑烧成；
（2）步骤（1）烧成的材料与电熔镁砂、高纯镁、氧化锆空心球混合，制成干料半成品；
（3）将配好的原料送入混料机内加石蜡混练，混料的时间20~30分钟；
（4）混料后用液压机成型，成型体密大于2.90g/cm3；
（5）在1600℃的高温隧道窑内进行烧成，保温8小时。
实施例3
镁钙锆耐火材料，按照重量份数由以下原料制成：锆英砂18份、白云石30份、氧化锆8份，电熔镁砂20份、高纯镁砂25份、氧化锆空心球0.5份、石蜡3份。
其中，所述的电熔镁砂粒度为1～3mm。
所述的高纯镁砂粒度为0.05～0.08mm。
所述的氧化锆空心球粒度为0.5～1mm。
该镁钙锆耐火材料的制备方法，包括以下步骤：
（1）锆英砂、白云石、氧化锆制备成5～8mm粉，高压干法压球成型，然后通过高温回转窑烧成；
（2）步骤（1）烧成的材料与电熔镁砂、高纯镁、氧化锆空心球混合，制成干料半成品；
（3）将配好的原料送入混料机内加石蜡混练，混料的时间20~30分钟；
（4）混料后用液压机成型，成型体密大于2.90g/cm3；
（5）在1600℃的高温隧道窑内进行烧成，保温8小时。

Claims (5)

1.镁钙锆耐火材料，其特征在于，按照重量份数由以下原料制成：锆英砂10~25份、白云石24~30份、氧化锆5~10份，电熔镁砂15～20份、高纯镁砂25～30份、氧化锆空心球0.5～0.8份、石蜡2～4份。
2.根据权利要求1所述的镁钙锆耐火材料，其特征在于：所述的电熔镁砂粒度为1～3mm。
3.根据权利要求1所述的镁钙锆耐火材料，其特征在于：所述的高纯镁砂粒度为0.05～0.08mm。
4.根据权利要求1所述的镁钙锆耐火材料，其特征在于：所述的氧化锆空心球粒度为0.5～1mm。
5.根据权利要求1到4所述镁钙锆耐火材料的制备方法，其特征在于，包括以下步骤：
（1）锆英砂、白云石、氧化锆制备成5～8mm粉，高压干法压球成型，然后通过高温回转窑烧成；
（2）步骤（1）烧成的材料与电熔镁砂、高纯镁、氧化锆空心球混合，制成干料半成品；
（3）将配好的原料送入混料机内加石蜡混练，混料的时间20~30分钟；
（4）混料后用液压机成型，成型体密大于2.90g/cm3；
（5）在1600℃的高温隧道窑内进行烧成，保温8小时。
CN201610385195.5A 2016-06-03 2016-06-03 镁钙锆耐火材料及其制备方法 Pending CN106083073A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110386824A (zh) * 2019-06-21 2019-10-29 宜兴新威利成耐火材料有限公司 不烧镁铬砖及其制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104387095A (zh) * 2014-10-31 2015-03-04 浙江金磊高温材料股份有限公司 一种镁钙锆砖及其制备方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104387095A (zh) * 2014-10-31 2015-03-04 浙江金磊高温材料股份有限公司 一种镁钙锆砖及其制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110386824A (zh) * 2019-06-21 2019-10-29 宜兴新威利成耐火材料有限公司 不烧镁铬砖及其制备方法

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Application publication date: 20161109