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金属矿山 ›› 2013, Vol. 42 ›› Issue (03): 165-168.

• 综合利用 • 上一篇    

金山店细粒铁尾矿固化造块试验

周曼1,2,李铁一3,刘正强3,罗文斌3,雷国元1,2,虞志平3   

  1. 1.武汉科技大学资源与环境工程学院;2.冶金矿产资源高效利用与造块湖北省重点实验室;3.武钢矿业有限公司金山店铁矿
  • 出版日期:2013-03-15 发布日期:2013-04-16

Experiments on Solidification and Agglomeration of Fine Iron Tailings of Jinshandian

Zhou Man1,2,Li Tieyi3,Liu Zhengqiang3,Luo Wenbin3,Lei Guoyuan1,2,Yu Zhiping3   

  1. 1. School of Resources and Environmental Engineering, Wuhan University of Science and Technology;2. Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources;3. Jinshandian Iron Mine of Wuhan Iron and Steel Mining Co., Ltd.
  • Online:2013-03-15 Published:2013-04-16

摘要: 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 ℃、1 MPa)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25 MPa。

关键词: 细粒铁尾矿, 固化, 养护方式, 抗压强度, 耐水性

Abstract: 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 compressive 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.

Key words: Fine iron tailings, Solidification, Curing method, Compressive strength, Water resistance