我厂砌輪窑火眼,使用了一种烧粘土和水泥做的砖。这种火眼砖耐火度高,加热收縮小,耐溫度急变性能好,而且便于施工。烧粘土水泥火眼砖的原料,水泥用400号火山灰水泥,烧粘土是在1200℃溫度下烧結的。烧粘土使用时須經过破碎,顆粒要求在3mm以下,其中小于0.3mm的微粉应在60%以上。所用粘土的化学成分为:SiO_2 67.93%,Al_2O_3 27.72%,Fe_2O_3 2.6%,CaO0.88%,MgO 0.26%。砖的原料配比,水泥与烧粘 I built a brick kiln fire eye, using a brick made of burnt clay and cement. The fire brick has high refractoriness, small heat shrinkage, good resistance to rapid temperature change, and easy construction. The raw materials for the clay cement fired bricks are cement, cement No. 400 pozzolanic cement, and the burned clay is sintered at a temperature of 1200°C. When the clay is used, it must be crushed. The particle size should be less than 3mm, and the fine powder less than 0.3mm should be more than 60%. The chemical composition of the clay used was: 67.93% of SiO2, 27.72% of Al_2O_3, 2.6% of Fe_2O_3, 0.88% of CaO, and 0.26% of MgO. Raw material ratio of brick, cement and stick