Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance rare earth composite calcium carbide furnace cover refractory castable and preparation method thereof
The invention provides a high-performance rare earth composite calcium carbide furnace cover refractory castable and a preparation method thereof. The castable is prepared from the following raw materials in parts by weight: 100 parts of a pouring mixture, 0.5 to 3 parts of rare earth oxide, 0.1 to 0.2 part of explosion-proof fiber, 0.1 to 0.3 part of a water reducing agent and 5 to 8 parts of water, wherein the pouring mixture is prepared from the following raw materials in parts by weight: 50-68 parts of brown aluminum oxide, 15-20 parts of mullite, 5-10 parts of aluminate cement, 4-7 parts of aluminum oxide micro powder, 4-6 parts of silicon oxide micro powder, 3-5 parts of clay additive and 1-2 parts of chromium oxide green. The preparation method comprises the following steps: screening brown fused alumina and mullite to required granularity; the preparation method comprises the following steps: weighing the raw materials according to the ratio, then putting all the raw materials except water into a stirrer, and stirring for 10-20 minutes so that the materials are fully mixed; and after the materials are uniformly stirred, slowly adding 5-8 parts of water, and stirring until the castable is in a viscous state. According to the refractory castable provided by the invention, the mechanical strength and the thermal shock resistance of the refractory castable are improved on the basis of ensuring that the furnace cover castable does not peel off and crust.
本发明提供了一种高性能稀土复合电石炉炉盖耐火浇注料及其制备方法，该浇注料包括以下重量份的原料：浇注混合料100份，稀土氧化物0.5~3份，防爆纤维0.1~0.2份，减水剂0.1~0.3份和水5~8份；其中，浇注混合料由以下重量份的原料组成：棕刚玉50~68份，莫来石15~20份，铝酸盐水泥5~10份，氧化铝微粉4~7份，氧化硅微粉4~6份，粘土助剂3~5份，氧化铬绿1~2份。其制备方法包括：将棕刚玉和莫来石筛分至所需粒度；按照上述的原料及其配比进行称量，然后将除了水之外的所有原料放入搅拌机中搅拌10~20min使物料充分混合；物料搅拌均匀后，缓慢加入5~8份的水，搅拌至浇注料呈粘性状态。本发明提供的耐火浇注料在保证炉盖浇注料不剥落，不结皮的基础上提高了其力学强度和抗热震性能。
High-performance rare earth composite calcium carbide furnace cover refractory castable and preparation method thereof
The invention provides a high-performance rare earth composite calcium carbide furnace cover refractory castable and a preparation method thereof. The castable is prepared from the following raw materials in parts by weight: 100 parts of a pouring mixture, 0.5 to 3 parts of rare earth oxide, 0.1 to 0.2 part of explosion-proof fiber, 0.1 to 0.3 part of a water reducing agent and 5 to 8 parts of water, wherein the pouring mixture is prepared from the following raw materials in parts by weight: 50-68 parts of brown aluminum oxide, 15-20 parts of mullite, 5-10 parts of aluminate cement, 4-7 parts of aluminum oxide micro powder, 4-6 parts of silicon oxide micro powder, 3-5 parts of clay additive and 1-2 parts of chromium oxide green. The preparation method comprises the following steps: screening brown fused alumina and mullite to required granularity; the preparation method comprises the following steps: weighing the raw materials according to the ratio, then putting all the raw materials except water into a stirrer, and stirring for 10-20 minutes so that the materials are fully mixed; and after the materials are uniformly stirred, slowly adding 5-8 parts of water, and stirring until the castable is in a viscous state. According to the refractory castable provided by the invention, the mechanical strength and the thermal shock resistance of the refractory castable are improved on the basis of ensuring that the furnace cover castable does not peel off and crust.
本发明提供了一种高性能稀土复合电石炉炉盖耐火浇注料及其制备方法，该浇注料包括以下重量份的原料：浇注混合料100份，稀土氧化物0.5~3份，防爆纤维0.1~0.2份，减水剂0.1~0.3份和水5~8份；其中，浇注混合料由以下重量份的原料组成：棕刚玉50~68份，莫来石15~20份，铝酸盐水泥5~10份，氧化铝微粉4~7份，氧化硅微粉4~6份，粘土助剂3~5份，氧化铬绿1~2份。其制备方法包括：将棕刚玉和莫来石筛分至所需粒度；按照上述的原料及其配比进行称量，然后将除了水之外的所有原料放入搅拌机中搅拌10~20min使物料充分混合；物料搅拌均匀后，缓慢加入5~8份的水，搅拌至浇注料呈粘性状态。本发明提供的耐火浇注料在保证炉盖浇注料不剥落，不结皮的基础上提高了其力学强度和抗热震性能。
High-performance rare earth composite calcium carbide furnace cover refractory castable and preparation method thereof
一种高性能稀土复合电石炉炉盖耐火浇注料及其制备方法
ZHANG WEI (Autor:in) / WU DANDAN (Autor:in) / PAN LU (Autor:in) / WANG JIPING (Autor:in) / CHEN LIBING (Autor:in) / CAO JIANWEI (Autor:in) / SU RIGALA (Autor:in) / LIU YONGHONG (Autor:in) / LIU SIYUAN (Autor:in) / SUN XIANGYU (Autor:in)
06.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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