CN106045533A - 钢铁连铸中间包用方镁石‑镁橄榄石‑碳质座砖及其制备方法 - Google Patents

钢铁连铸中间包用方镁石‑镁橄榄石‑碳质座砖及其制备方法 Download PDF

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CN106045533A
CN106045533A CN201610385193.6A CN201610385193A CN106045533A CN 106045533 A CN106045533 A CN 106045533A CN 201610385193 A CN201610385193 A CN 201610385193A CN 106045533 A CN106045533 A CN 106045533A
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particle diameter
periclase
forsterite
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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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Abstract

本发明涉及耐火材料领域，具体涉及钢铁连铸中间包用方镁石‑镁橄榄石‑碳质座砖及其制备方法，包括工作层和隔热层，所述工作层由以下原料组成：方镁石、铁铝尖晶石砂、电熔镁砂、减水剂、结合剂；隔热层由以下原料组成：镁橄榄石、菱镁石、镁砂细粉、石墨、二氧化钛微球、结合剂。本发明提供的钢铁连铸中间包用方镁石‑镁橄榄石‑碳质座砖及其制备方法，制备得到的砖头，导热系数低，具有良好的保温效果，并且抗震和抗腐蚀性好，延长了使用寿命，降低了使用成本。

Description

钢铁连铸中间包用方镁石-镁橄榄石-碳质座砖及其制备方法
技术领域
本发明涉及耐火材料领域，具体涉及钢铁连铸中间包用方镁石-镁橄榄石-碳质座砖及其制备方法。
背景技术
目前，钢铁连铸中间包用的耐火砖主要是镁铁砖或者镁铝砖，导热系数均比较高，实际使用过程中节能效果不显著，隔热效果差，浪费能源，而且使用寿命短，使用成本高。
发明内容
针对上技术问题，本发明提供一种隔热效果好的钢铁连铸中间包用方镁石-镁橄榄石-碳质座砖及其制备方法。
具体技术方案为：
钢铁连铸中间包用方镁石-镁橄榄石-碳质座砖，包括工作层和隔热层，所述工作层由以下原料按照重量份数组成：
粒径为3-6mm的方镁石13～18份、粒径为1-3mm的方镁石17～22份、粒径为1-2mm的铁铝尖晶石砂9～15份、粒径为0.088-1mm的方镁石9～12份、粒径为0.088-1mm的铁铝尖晶石砂6～12份、粒径＜0.088mm的方镁石细粉27～37份和粒径＜0.020mm的电熔镁砂7～12份，减水剂0.05～0.08份和结合剂3.6～4.5份；
所述隔热层由以下原料按照重量份数组成：
粒径为3-6mm的镁橄榄石14～18份、粒径为1-3mm的镁橄榄石22～26份、粒径为0.088-1mm的镁橄榄石8～14份、粒径为0.088-0.5mm的菱镁石颗粒6～11份、粒径＜0.088mm的镁砂细粉6～11份、石墨4～7份、粒径＜1mm的二氧化钛微球0.5～1.2份、结合剂6～10份。
钢铁连铸中间包用方镁石-镁橄榄石-碳质座砖的制备方法，包括以下步骤：
(1)制备工作层：按工作层原料组成混合均匀后，再加入减水剂和结合剂，在进行混炼至均匀；
(2)制备隔热层：按隔热层原料组成混合均匀后，再加入二氧化钛和结合剂，再进行混炼至均匀；
(3)成型、烧成：用分隔板将砖模具隔开分为热端和冷端两部分，在热端加入工作层，在冷端加入隔热层，然后抽出分隔板，用摩擦压砖机压制成砖坯，将砖坯在干燥窑中110～125℃干燥22～25小时，然后在1550～1600℃烧制5～7小时，出窑。
本发明提供的钢铁连铸中间包用方镁石-镁橄榄石-碳质座砖及其制备方法，制备得到的砖头，导热系数低，具有良好的保温效果，并且抗震和抗腐蚀性好，延长了使用寿命，降低了使用成本。
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
粒径为3-6mm的方镁石18份、粒径为1-3mm的方镁石19份、粒径为1-2mm的铁铝尖晶石砂15份、粒径为0.088-1mm的方镁石11份、粒径为0.088-1mm的铁铝尖晶石砂6份、粒径＜0.088mm的方镁石细粉33份和粒径＜0.020mm的电熔镁砂12份，减水剂0.05～0.08份和结合剂4份；
所述隔热层由以下原料按照重量份数组成：
粒径为3-6mm的镁橄榄石14份、粒径为1-3mm的镁橄榄石25份、粒径为0.088-1mm的镁橄榄石14份、粒径为0.088-0.5mm的菱镁石颗粒6份、粒径＜0.088mm的镁砂细粉6份、石墨5份、粒径＜1mm的二氧化钛微球1.2份、结合剂8份。
钢铁连铸中间包用方镁石-镁橄榄石-碳质座砖的制备方法，包括以下步骤：
(1)制备工作层：按工作层原料组成混合均匀后，再加入减水剂和结合剂，在进行混炼至均匀；
(2)制备隔热层：按隔热层原料组成混合均匀后，再加入二氧化钛和结合剂，再进行混炼至均匀；
(3)成型、烧成：用分隔板将砖模具隔开分为热端和冷端两部分，在热端加入工作层，在冷端加入隔热层，然后抽出分隔板，用摩擦压砖机压制成砖坯，将砖坯在干燥窑中110～125℃干燥22～25小时，然后在1550～1600℃烧制5～7小时，出窑。
实施例2
粒径为3-6mm的方镁石13份、粒径为1-3mm的方镁石22份、粒径为1-2mm的铁铝尖晶石砂10份、粒径为0.088-1mm的方镁石9份、粒径为0.088-1mm的铁铝尖晶石砂12份、粒径＜0.088mm的方镁石细粉37份和粒径＜0.020mm的电熔镁砂7份，减水剂0.05～0.08份和结合剂3.6份；
所述隔热层由以下原料按照重量份数组成：
粒径为3-6mm的镁橄榄石16份、粒径为1-3mm的镁橄榄石26份、粒径为0.088-1mm的镁橄榄石8份、粒径为0.088-0.5mm的菱镁石颗粒7份、粒径＜0.088mm的镁砂细粉11份、石墨4份、粒径＜1mm的二氧化钛微球0.9份、结合剂6份。
钢铁连铸中间包用方镁石-镁橄榄石-碳质座砖的制备方法，包括以下步骤：
(1)制备工作层：按工作层原料组成混合均匀后，再加入减水剂和结合剂，在进行混炼至均匀；
(2)制备隔热层：按隔热层原料组成混合均匀后，再加入二氧化钛和结合剂，再进行混炼至均匀；
(3)成型、烧成：用分隔板将砖模具隔开分为热端和冷端两部分，在热端加入工作层，在冷端加入隔热层，然后抽出分隔板，用摩擦压砖机压制成砖坯，将砖坯在干燥窑中110～125℃干燥22～25小时，然后在1550～1600℃烧制5～7小时，出窑。
实施例3
粒径为3-6mm的方镁石16份、粒径为1-3mm的方镁石17份、粒径为1-2mm的铁铝尖晶石砂9份、粒径为0.088-1mm的方镁石12份、粒径为0.088-1mm的铁铝尖晶石砂9份、粒径＜0.088mm的方镁石细粉27份和粒径＜0.020mm的电熔镁砂11份，减水剂0.05～0.08份和结合剂4.5份；
所述隔热层由以下原料按照重量份数组成：
粒径为3-6mm的镁橄榄石18份、粒径为1-3mm的镁橄榄石22份、粒径为0.088-1mm的镁橄榄石11份、粒径为0.088-0.5mm的菱镁石颗粒11份、粒径＜0.088mm的镁砂细粉9份、石墨7份、粒径＜1mm的二氧化钛微球0.5份、结合剂10份。
钢铁连铸中间包用方镁石-镁橄榄石-碳质座砖的制备方法，包括以下步骤：
(1)制备工作层：按工作层原料组成混合均匀后，再加入减水剂和结合剂，在进行混炼至均匀；
(2)制备隔热层：按隔热层原料组成混合均匀后，再加入二氧化钛和结合剂，再进行混炼至均匀；
(3)成型、烧成：用分隔板将砖模具隔开分为热端和冷端两部分，在热端加入工作层，在冷端加入隔热层，然后抽出分隔板，用摩擦压砖机压制成砖坯，将砖坯在干燥窑中110～125℃干燥22～25小时，然后在1550～1600℃烧制5～7小时，出窑。

Claims (2)

1.钢铁连铸中间包用方镁石-镁橄榄石-碳质座砖，包括工作层和隔热层，其特征在于：所述工作层由以下原料按照重量份数组成：
粒径为3-6mm的方镁石13～18份、粒径为1-3mm的方镁石17～22份、粒径为1-2mm的铁铝尖晶石砂9～15份、粒径为0.088-1mm的方镁石9～12份、粒径为0.088-1mm的铁铝尖晶石砂6～12份、粒径＜0.088mm的方镁石细粉27～37份和粒径＜0.020mm的电熔镁砂7～12份，减水剂0.05～0.08份和结合剂3.6～4.5份；
所述隔热层由以下原料按照重量份数组成：
粒径为3-6mm的镁橄榄石14～18份、粒径为1-3mm的镁橄榄石22～26份、粒径为0.088-1mm的镁橄榄石8～14份、粒径为0.088-0.5mm的菱镁石颗粒6～11份、粒径＜0.088mm的镁砂细粉6～11份、石墨4～7份、粒径＜1mm的二氧化钛微球0.5～1.2份、结合剂6～10份。
2.根据权利要求1所述的钢铁连铸中间包用方镁石-镁橄榄石-碳质座砖的制备方法，其特征在于：包括以下步骤：
(1)制备工作层：按工作层原料组成混合均匀后，再加入减水剂和结合剂，在进行混炼至均匀；
(2)制备隔热层：按隔热层原料组成混合均匀后，再加入二氧化钛和结合剂，再进行混炼至均匀；
(3)成型、烧成：用分隔板将砖模具隔开分为热端和冷端两部分，在热端加入工作层，在冷端加入隔热层，然后抽出分隔板，用摩擦压砖机压制成砖坯，将砖坯在干燥窑中110～125℃干燥22～25小时，然后在1550～1600℃烧制5～7小时，出窑。
CN201610385193.6A 2016-06-03 2016-06-03 钢铁连铸中间包用方镁石‑镁橄榄石‑碳质座砖及其制备方法 Pending CN106045533A (zh)

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