关键词: 提钒尾渣;烧结;广场砖

Abstract: The sintered square brick was prepared by the semi dry forming method using the vanadium tailing slag as the main raw material.The physical index of sintered square brick with vanadium tailings can be optimized, and the properties of brick can be improved by adding Guangxi white mud, ferrosilicon ash, fly ash and A12O3 powder.By means of the condition test, the influence of the proportioning of white mud in Guangxi, fly ash, silicon iron ash and Al2O3 powder on the compressive strength and water absorption of the sintered wide-field brick is studied at room temperature.The conditional test shows that the allocation of Guangxi white mud is about 20%, and the amount of ferrosilicon ash control is less than 5%.It is more suitable to control the amount of fly ash in 6%, and the amount of Al2O3 powder is less than 6%.The brick's compressive strength is above 28 MPa and the water absorption can be reduced to about 10%at room temperature.

Key words: vanadium tailings;sintering;sintered square brick