Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength nano castable for iron-making slag-disintegrating pit
The invention discloses a high-strength nano castable for an iron-making slag disintegrating pit. The high-strength nano castable is prepared from the following raw materials in parts by weight: 20-30 parts of a homogenized material with the particle size of 8-15mm; 12-18 parts of a homogenized material with a particle size of 5-8 mm; 12-18 parts of brown aluminum oxide with the particle size of 3-5 mm; 12-18 parts of brown aluminum oxide with the particle size of 0-3 mm; 5-7 parts of silica fume with the mesh number of not less than 200 meshes; 6-8 parts of activated aluminum oxide powder with the mesh number not smaller than 325 meshes is sieved; the concrete is prepared from the following components in parts by weight: 12 to 18 parts of pure calcium aluminate cement, 1.4 to 2.0 parts of heat-resistant steel fiber, 0.4 to 0.6 part of chromium oxide green, 0.08 to 0.12 part of sodium hexametaphosphate, 0.04 to 0.06 part of high-efficiency water reducing agent and 0.08 to 0.12 part of explosion-proof fiber. According to the invention, the particle size distribution of the raw materials is optimized, the high-efficiency water reducing agent and the sodium hexametaphosphate are used together, and a certain amount of chromium oxide green is adopted, so that the high-temperature strength performance and the slag corrosion resistance can be obviously improved, and in combination with the effects of other raw materials, the obtained castable is high in strength and excellent in slag corrosion resistance, and can well meet the use of an iron-making slag-disintegrating pit.
本发明公开了一种炼铁闷渣坑用高强纳米浇注料，它由如下重量份的原料制备而成：粒度为8～15mm的均化料20～30份；粒度为5～8mm的均化料12～18份；粒度为3～5mm的棕刚玉12～18份；粒度为0～3mm的棕刚玉12～18份；过筛目数不小于200目的微硅粉5～7份；过筛目数不小于325目的活性氧化铝粉6～8份；纯铝酸钙水泥12～18份、耐热钢纤维1.4～2.0份、氧化铬绿0.4～0.6份、六偏磷酸钠0.08～0.12份、高效减水剂0.04～0.06份，防爆纤维0.08～0.12份。本发明通过优化原料粒径分布，并采用高效减水剂与六偏磷酸钠共用，以及采用一定量的氧化铬绿，可明显提高高温强度性能和抗渣侵蚀性能，结合其他原料的作用，得到的浇注料强度高，抗渣侵蚀性能优异，可良好的满足炼铁闷渣坑使用。
High-strength nano castable for iron-making slag-disintegrating pit
The invention discloses a high-strength nano castable for an iron-making slag disintegrating pit. The high-strength nano castable is prepared from the following raw materials in parts by weight: 20-30 parts of a homogenized material with the particle size of 8-15mm; 12-18 parts of a homogenized material with a particle size of 5-8 mm; 12-18 parts of brown aluminum oxide with the particle size of 3-5 mm; 12-18 parts of brown aluminum oxide with the particle size of 0-3 mm; 5-7 parts of silica fume with the mesh number of not less than 200 meshes; 6-8 parts of activated aluminum oxide powder with the mesh number not smaller than 325 meshes is sieved; the concrete is prepared from the following components in parts by weight: 12 to 18 parts of pure calcium aluminate cement, 1.4 to 2.0 parts of heat-resistant steel fiber, 0.4 to 0.6 part of chromium oxide green, 0.08 to 0.12 part of sodium hexametaphosphate, 0.04 to 0.06 part of high-efficiency water reducing agent and 0.08 to 0.12 part of explosion-proof fiber. According to the invention, the particle size distribution of the raw materials is optimized, the high-efficiency water reducing agent and the sodium hexametaphosphate are used together, and a certain amount of chromium oxide green is adopted, so that the high-temperature strength performance and the slag corrosion resistance can be obviously improved, and in combination with the effects of other raw materials, the obtained castable is high in strength and excellent in slag corrosion resistance, and can well meet the use of an iron-making slag-disintegrating pit.
本发明公开了一种炼铁闷渣坑用高强纳米浇注料，它由如下重量份的原料制备而成：粒度为8～15mm的均化料20～30份；粒度为5～8mm的均化料12～18份；粒度为3～5mm的棕刚玉12～18份；粒度为0～3mm的棕刚玉12～18份；过筛目数不小于200目的微硅粉5～7份；过筛目数不小于325目的活性氧化铝粉6～8份；纯铝酸钙水泥12～18份、耐热钢纤维1.4～2.0份、氧化铬绿0.4～0.6份、六偏磷酸钠0.08～0.12份、高效减水剂0.04～0.06份，防爆纤维0.08～0.12份。本发明通过优化原料粒径分布，并采用高效减水剂与六偏磷酸钠共用，以及采用一定量的氧化铬绿，可明显提高高温强度性能和抗渣侵蚀性能，结合其他原料的作用，得到的浇注料强度高，抗渣侵蚀性能优异，可良好的满足炼铁闷渣坑使用。
High-strength nano castable for iron-making slag-disintegrating pit
一种炼铁闷渣坑用高强纳米浇注料
KANG XIAOXU (Autor:in) / KANG SHAOTAO (Autor:in) / KANG XIAOYANG (Autor:in)
13.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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