Tailings Disposal and Application

Tailings is one of the products of mineral dressing,along with the granularity of tailings ground more fine,tailings emissions is more and more big,the tailings has become a major dangerouse of metal mines.

Because of the limitation of current techinical and ecnomic conditions,tailings have unfavorable further separation.depend on the tailings concentration,it can be divided into slurry,paste tailings and tailings filter cake.At present,the tailings disposal technology is basicly dry stacking of tailings and pit fill.but because of the tailings preparation and delivery concentration is too low and there are many problems,Such as easy segregation layered,low intensity,difficult dehydration,severe wear of pipeline,a long time consolidation.surface paste stack and underground paste filling is a promising way to deal with the tailings.

Dry stacking of tailings is concentrated by hydrocyclone,while the coarse particles directly into the dewatering screen for dehydration dry stacks,the ultra fine tailings enters into efficient thickener turns into paste and then pumped and transported to a certain locations dealt with filter press.

With the development of fillings techniques,the tailings as the main filling material is used to fill mined out area,which not only solves the problem of the dispossal of the tailings but also provides a feasible scheme for the treatment of mined out area.

dry tailings stacked

tailings dewatering