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Joint filling material for silicon carbide wall-mounted bricks
The invention belongs to the technology of refractory materials for garbage incinerators, and relates to a joint filling material for silicon carbide wall-mounted bricks. The joint filling material for the silicon carbide wall-mounted brick is filled into a gap between a water-cooled tube of a garbage incinerator and the silicon carbide wall-mounted brick in a self-flowing manner; the joint sealing material comprises the following raw materials in percentage by mass: 60-90% of silicon carbide, 0-25% of corundum, 0-3% of active alpha-Al2O3 micro powder, 6.5-10% of silicon dioxide micro powder,3-10% of aluminate cement, and 0.1-0.2% of a water reducing agent. The water reducing agent is externally added. The material has good fluidity, and can realize filling of fine gaps; the heat conductivity coefficient is high and reaches 8W/mK or above at 1000 DEG C; and acid and alkaline gas corrosion resistance at high temperature is good, the volume stability is good, and the service life of thewater-cooled coil is effectively prolonged.
本发明属于垃圾焚烧炉用耐火材料技术,涉及一种碳化硅挂壁砖用填缝材料。涉及的一种碳化硅挂壁砖用填缝材料采用自流的方式填充至垃圾焚烧炉水冷管与碳化硅挂砖之间的缝隙;填缝材料的原料及质量百分比为:碳化硅60‑90%;刚玉0‑25%;活性ɑ‑Al2O3微粉0‑3%;二氧化硅微粉6.5‑10%;铝酸盐水泥3‑10%;减水剂0.1‑0.2%;其中减水剂为外加。本发明的流动性好,可实现细小缝隙的填充;导热系数高,1000℃下的导热系数达到8W/mK以上;高温下抗酸、碱性气体侵蚀性能好,体积稳定性好,有效提高水冷盘管的使用寿命。
Joint filling material for silicon carbide wall-mounted bricks
The invention belongs to the technology of refractory materials for garbage incinerators, and relates to a joint filling material for silicon carbide wall-mounted bricks. The joint filling material for the silicon carbide wall-mounted brick is filled into a gap between a water-cooled tube of a garbage incinerator and the silicon carbide wall-mounted brick in a self-flowing manner; the joint sealing material comprises the following raw materials in percentage by mass: 60-90% of silicon carbide, 0-25% of corundum, 0-3% of active alpha-Al2O3 micro powder, 6.5-10% of silicon dioxide micro powder,3-10% of aluminate cement, and 0.1-0.2% of a water reducing agent. The water reducing agent is externally added. The material has good fluidity, and can realize filling of fine gaps; the heat conductivity coefficient is high and reaches 8W/mK or above at 1000 DEG C; and acid and alkaline gas corrosion resistance at high temperature is good, the volume stability is good, and the service life of thewater-cooled coil is effectively prolonged.
本发明属于垃圾焚烧炉用耐火材料技术,涉及一种碳化硅挂壁砖用填缝材料。涉及的一种碳化硅挂壁砖用填缝材料采用自流的方式填充至垃圾焚烧炉水冷管与碳化硅挂砖之间的缝隙;填缝材料的原料及质量百分比为:碳化硅60‑90%;刚玉0‑25%;活性ɑ‑Al2O3微粉0‑3%;二氧化硅微粉6.5‑10%;铝酸盐水泥3‑10%;减水剂0.1‑0.2%;其中减水剂为外加。本发明的流动性好,可实现细小缝隙的填充;导热系数高,1000℃下的导热系数达到8W/mK以上;高温下抗酸、碱性气体侵蚀性能好,体积稳定性好,有效提高水冷盘管的使用寿命。
Joint filling material for silicon carbide wall-mounted bricks
一种碳化硅挂壁砖用填缝材料
QIN HONGBIN (Autor:in) / ZHANG SANHUA (Autor:in) / CAO ZHUANG (Autor:in) / GUO JUNHUA (Autor:in) / ZHANG JUN (Autor:in) / ZHENG SHUHANG (Autor:in) / YAN LEIXIN (Autor:in)
22.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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