Refractory brick for belt type sintering machine combustion chamber, and preparation method thereof

• Main Authors: LI XUEYAN, WAN JUN, LI FANG, GUO HONGXIANG, HE GUANTONG
• Format: Patent
• Language: Chinese; English
• Published: 19.06.2020
• 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 relates to a refractory brick for a belt type sintering machine combustion chamber, and a preparation method thereof. The refractory brick is prepared from the following raw materials inpercentage by weight: 10%-15% of special-grade alumina aggregate, 50%-58% of white corundum aggregate, 18%-22% of sub-white corundum fine powder, 3%-5% of Suzhou clay, 3%-5% of kyanite fine powder, 3% of alpha-Al2O3 and 3.8%-4.8% of a binding agent. According to the invention, the refractory brick is low in porosity, high in strength, good in thermal shock resistance, low in roasting temperature,short in production period, capable of effectively solving the problems existing in the existing corundum mullite brick, good in abrasion resistance and stripping resistance, low in cost, capable ofbeing applied to a belt type sintering machine combustion chamber and capable of effectively prolonging the service life. 本发明涉及一种带式烧结机燃烧室用耐火砖及其制备方法，采用如下原材料及重量百分比：10%至15%的特级矾土骨料，50%至58%的白刚玉骨料，18%至22%的亚白刚玉细粉，3%至5%的苏州土，3%至5%蓝晶石细粉，