金山店细粒铁尾矿固化造块试验

Experiments on Solidification and Agglomeration of Fine Iron Tailings of Jinshandian

以金山店细粒铁尾矿为固化对象,以经激发剂Y、Z激发的工业固体废弃物X为固化剂,研究了固化剂配方、陈化温度、养护方式、成型压力等工艺技术条件对固化块的抗压强度和耐水性能的影响。结果表明:固化剂的合理配方为X、Y、Z的质量比=8:3.7:1,固化剂与尾矿质量比为12.7:87.3适宜的陈化温度为30℃,高压蒸养(180℃、1MPa)最有利于提高固化块的抗压强度和耐水性、自然养护效果最差,固化块适宜的成型压力为25MPa。

Taking fine iron tailings of Jinshandian as solidified subobject and the industrial solid waste X activated by the activator Y, Z as the curing agent, the impact of the technical conditions such as formulation of curing agent, aging temperature, curing method and molding pressure on the compressive strength and water resistance of the solidified blocks is investigated. The results show that when the reasonable mass ratio of the X, Y,Z is 8： 3.7： 1, the mass ratio of curing agent to tailsings is 12. 7：87.3 the aging temperature is 30 ℃ under the high-pressure steaming （ 180 ℃, 1 MPa）, the compres- sive strength and water resistance of the solidified blocks is better improved and its natural curing is the worst. The suitable molding pressure for solidified blocks is 25 MPa.