Latest ArticlesWith the growth in the people’s living standard, the demand of resources is more and more, which leads to continuous exploitation of a large number of mineral resources in our country so that there are many ecological problems. In this paper, the ecological impacts of strip mining in desert steppe are analyzed from such aspects as plant and animal resources, land resources as well as landscape through field investigation in project area by taking the strip mining project in Dongkekeyiligeng mining area of Darhan Muminggan Liahheqi in Inner Mongolia as an example. Moreover, the suggestions on ecological conservation measures of strip mining are put forward based on the theory of restoration ecology.
The ferric charge for tailings after carbonization reaction of steel slag is with magnetic separation, then the feasibility study of returning to sintering for concentrate powder and tail powder of magnetic separation is carried out. Their chemical components are analyzed and the effects of adding them into sintering process on content of P for molten iron of blast furnace are calculated. The effects of concentrate powder of magnetic separation on the sintering components and indexes are analyzed through its sinter pot test. Finally, it is proved that the concentrate powder of magnetic separation can return to sintering process to be used.
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