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A platform for research: civil engineering, architecture and urbanism
Lining brick for one-pot molten iron tank and preparation process thereof
The invention discloses a lining brick for a one-pot molten iron tank and a preparation process thereof. The lining brick comprises the following raw materials in percentage by weight: 40%-60% of bauxite, 10%-18% of fused alumina, 9%-19% of silicon carbide, 8%-14% of graphite and 5-10% of a micro-expanding agent, an antioxidant and a binding agent. The preparation process comprises the following steps: (1) proportioning; (2) mixing and grinding, namely adding the raw materials into a mixing and grinding machine according to a certain sequence, and fully mixing to form pug; (3) ageing, namely uniformly distributing a composite binding agent in the pug, and improving the uniformity and formability of the pug; (4) a mechanical pressing forming procedure: pressing the pug into a brick shape byusing a brick press; and (5) a low-temperature heat treatment procedure: baking the lining brick at a low temperature. The prepared lining brick is widely applied to a one-pot molten iron tank, the service life is prolonged, the production process is simplified, the production cost is reduced, and the environmental pollution is reduced.
本发明公开一种用于“一罐制”铁水罐的衬砖及其制备工艺，所述衬砖的原料及其对应的重量百分比为：铝矾土40％‑60％，电熔刚玉10％‑18％，碳化硅9％‑19％，石墨8％‑14％，微膨胀剂、抗氧化剂及结合剂5‑10％；所述制备工艺包括如下步骤：①配料工序；②混碾工序：将原料按照一定的顺序加入混碾机中，使其充分融合形成泥料；③睏料工序：使泥料中的复合结合剂分布均匀，提高泥料的均匀性和成型性；④机压成型工序：用压砖机将泥料压制成砖型：⑤低温热处理工序：对所述衬砖进行低温烘烤。制备出的衬砖广泛应用于“一罐制”铁水罐，延长使用寿命，简化生产工序，同时降低生产成本，减少环境污染。
Lining brick for one-pot molten iron tank and preparation process thereof
The invention discloses a lining brick for a one-pot molten iron tank and a preparation process thereof. The lining brick comprises the following raw materials in percentage by weight: 40%-60% of bauxite, 10%-18% of fused alumina, 9%-19% of silicon carbide, 8%-14% of graphite and 5-10% of a micro-expanding agent, an antioxidant and a binding agent. The preparation process comprises the following steps: (1) proportioning; (2) mixing and grinding, namely adding the raw materials into a mixing and grinding machine according to a certain sequence, and fully mixing to form pug; (3) ageing, namely uniformly distributing a composite binding agent in the pug, and improving the uniformity and formability of the pug; (4) a mechanical pressing forming procedure: pressing the pug into a brick shape byusing a brick press; and (5) a low-temperature heat treatment procedure: baking the lining brick at a low temperature. The prepared lining brick is widely applied to a one-pot molten iron tank, the service life is prolonged, the production process is simplified, the production cost is reduced, and the environmental pollution is reduced.
本发明公开一种用于“一罐制”铁水罐的衬砖及其制备工艺，所述衬砖的原料及其对应的重量百分比为：铝矾土40％‑60％，电熔刚玉10％‑18％，碳化硅9％‑19％，石墨8％‑14％，微膨胀剂、抗氧化剂及结合剂5‑10％；所述制备工艺包括如下步骤：①配料工序；②混碾工序：将原料按照一定的顺序加入混碾机中，使其充分融合形成泥料；③睏料工序：使泥料中的复合结合剂分布均匀，提高泥料的均匀性和成型性；④机压成型工序：用压砖机将泥料压制成砖型：⑤低温热处理工序：对所述衬砖进行低温烘烤。制备出的衬砖广泛应用于“一罐制”铁水罐，延长使用寿命，简化生产工序，同时降低生产成本，减少环境污染。
Lining brick for one-pot molten iron tank and preparation process thereof
一种用于“一罐制”铁水罐的衬砖及其制备工艺
CAO JIAN (author) / XIAO XIONG (author) / YU QIWEN (author)
2021-01-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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