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Magnesium-aluminum-titanium-zirconium brick and preparation method thereof
The invention discloses a magnesium-aluminum-titanium-zirconium brick and a preparation method thereof. The magnesium-aluminum-titanium-zirconium brick is mainly prepared from the following raw materials: 10 to 15 percent of high-purity magnesia with the particle size of 5 to 3mm, 13 to 18 percent of high-purity magnesia with the particle size of 3 to 1mm, 12 to 17 percent of high-purity magnesia with the particle size of 1 to 0.1 mm, 26 to 41 percent of high-purity magnesia with the particle size of less than 0.088 mm, 5 to 10 percent of magnesium aluminate spinel with the particle size of 3.5 to 1.5 mm, 6 to 11 percent of magnesium aluminate spinel with the particle size of 1.5 to 0.5 mm, 3 to 10 percent of aluminum titanate powder with the particle size of less than 0.088 mm and 1 to 3 percent of zirconium oxide powder with the particle size of less than 0.088 mm. In addition, a composite binding agent is added. The preparation method comprises the following steps: firstly, pre-mixing materials with the particle size of less than 0.088 mm, and then adding the rest raw materials and a composite binding agent for mixing to obtain a raw material; and sequentially molding, drying and sintering the raw material to obtain the magnesium-aluminum-titanium-zirconium brick. According to the present invention, the thermal shock resistance of the brick can be improved, and the thermal expansion rate can be reduced so as to further adapt to the current application scene of the rotary cement kiln.
本发明公开了一种镁铝钛锆砖及其制备方法。所述镁铝钛锆砖主要由原料5‑3mm的高纯镁砂10～15％、3‑1mm的高纯镁砂13～18％、1‑0.1mm的高纯镁砂12～17％、＜0.088mm的高纯镁砂26～41％、3.5‑1.5mm的镁铝尖晶石5～10％、1.5‑0.5mm的镁铝尖晶石6～11％、＜0.088mm钛酸铝粉3～10％和＜0.088mm氧化锆粉1～3％组成；另外加入复合结合剂。首先将＜0.088mm的物料预混合，然后加入剩余原料和复合结合剂混炼，得到生料；将生料依次进行成型、干燥和烧成，得到产品镁铝钛锆砖。通过本发明，既能够提高砖的抗热震性能，又能够降低其热膨胀率，进而更适应当下水泥回转窑的应用场景。
Magnesium-aluminum-titanium-zirconium brick and preparation method thereof
The invention discloses a magnesium-aluminum-titanium-zirconium brick and a preparation method thereof. The magnesium-aluminum-titanium-zirconium brick is mainly prepared from the following raw materials: 10 to 15 percent of high-purity magnesia with the particle size of 5 to 3mm, 13 to 18 percent of high-purity magnesia with the particle size of 3 to 1mm, 12 to 17 percent of high-purity magnesia with the particle size of 1 to 0.1 mm, 26 to 41 percent of high-purity magnesia with the particle size of less than 0.088 mm, 5 to 10 percent of magnesium aluminate spinel with the particle size of 3.5 to 1.5 mm, 6 to 11 percent of magnesium aluminate spinel with the particle size of 1.5 to 0.5 mm, 3 to 10 percent of aluminum titanate powder with the particle size of less than 0.088 mm and 1 to 3 percent of zirconium oxide powder with the particle size of less than 0.088 mm. In addition, a composite binding agent is added. The preparation method comprises the following steps: firstly, pre-mixing materials with the particle size of less than 0.088 mm, and then adding the rest raw materials and a composite binding agent for mixing to obtain a raw material; and sequentially molding, drying and sintering the raw material to obtain the magnesium-aluminum-titanium-zirconium brick. According to the present invention, the thermal shock resistance of the brick can be improved, and the thermal expansion rate can be reduced so as to further adapt to the current application scene of the rotary cement kiln.
本发明公开了一种镁铝钛锆砖及其制备方法。所述镁铝钛锆砖主要由原料5‑3mm的高纯镁砂10～15％、3‑1mm的高纯镁砂13～18％、1‑0.1mm的高纯镁砂12～17％、＜0.088mm的高纯镁砂26～41％、3.5‑1.5mm的镁铝尖晶石5～10％、1.5‑0.5mm的镁铝尖晶石6～11％、＜0.088mm钛酸铝粉3～10％和＜0.088mm氧化锆粉1～3％组成；另外加入复合结合剂。首先将＜0.088mm的物料预混合，然后加入剩余原料和复合结合剂混炼，得到生料；将生料依次进行成型、干燥和烧成，得到产品镁铝钛锆砖。通过本发明，既能够提高砖的抗热震性能，又能够降低其热膨胀率，进而更适应当下水泥回转窑的应用场景。
Magnesium-aluminum-titanium-zirconium brick and preparation method thereof
一种镁铝钛锆砖及其制备方法
ZHAI PENGTAO (author) / ZHOU ZHENNI (author) / REN XIANGYANG (author) / LIU XIAOLEI (author) / LYU BAOLEI (author) / MAO ENLIANG (author) / HE JIGANG (author) / ZHAI NINGXIAO (author) / WU YUE (author) / ZHANG GENTING (author)
2023-07-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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