Lightweight high-thermal-shock refractory material for preheating decomposition zone of cement kiln and preparation method of lightweight high-thermal-shock refractory material

• Main Authors: LIU XIAOLEI, ZHAI YAOJIE, ZHOU ZHENNI, ZHAI PENGTAO, LIU ZHAO, GUO XUELIANG, MAO ENLIANG, LI BIN, REN XIANGYANG
• Format: Patent
• Language: Chinese; English
• Published: 08.08.2023
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention discloses a light-weight high-thermal-shock-resistance refractory material for a preheating decomposition zone of a cement kiln and a preparation method thereof. The light-weight high-thermal-shock refractory material is mainly prepared from the following raw materials: flint clay, silicon carbide, andalusite, alpha-Al2O3 micro powder, kaolinite and binding clay. In addition, a binding agent is added. The preparation method comprises the following steps: firstly, mulling flint clay, andalusite and silicon carbide granules, then adding a binding agent for continuous mixing, and finally adding silicon carbide, kaolinite, alpha-Al2O3 micro powder and binding clay powder for continuous mulling to obtain a mixed material; the mixed material is sequentially subjected to forming, drying, sintering and cooling, and the light-weight high-thermal-shock-resistant material is obtained. The light-weight high-thermal-shock-resistance refractory material prepared by the preparation method disclosed by the inve