Tailings Re Processing Line
Iron tailings: the iron tailings discharge from iron ore plant is in large
amount, fine size and different types, and complex property, so
Hengyang Industry use the process of magnetic separation,
flotation, acid leaching and flocculation to recover iron.
Gold tailings: Hengyang Industry usually use all-slime cyanide process and
carbon-in-pulp process to recover the gold from gold tailings. As
for the gold tailings cyaniding, Hengyang Industry will apply the
method of dry-tailing stacking. That is, though the process of
classifying and dewatering, at the same recycling the water
recourses to remove the cyanide in it. Moreover, Hengyang Industry
will use magnetic separation and gravity separation to remove the
iron.
Lead-zinc tailings: the main component of the lead-zinc tailings are quartz and
suicide sericite. Except the method of stockpiling in tailings
pool, dry-tailing stacking and mine filling, Hengyang Industry will
also apply gravity separation, flotation separation, magnetic
separation, gravity - flotation separation, and other process to
recycle the valuable elements.
Copper tailings: if the copper with high heavy metals content, the separation will
be easier and apply the process of flotation. If there exist
magnetite in the copper tailings, it will firstly using acid
leaching to precipitate the copper, then use magnetic separation
accordingly.
Fluorite ore tailings: Hengyang Industry use the process of flotation to reselect the
fluorite, roughing and then cleaning. Before roughing, the pulp and
the reagent will be fully stirred. After that repeated cleaning
will be proceed.
Wolfram tailing: Hengyang Industry will apply gravity separation, magnetic
separation and flotation separation to recycle the wolfram. The
gravity separation is commonly used. Wolfram tailing re-selection
process is mainly used spiral chute and centrifugal ore separator
to roughing, shaking table and flotation to cleaning.
Phosphate tailing: siliceous collophanite mainly include quartz siliceous minerals in
gangue mineral, so the floatability of gangue is larger than
valuable mineral.
Graphite tailings:Hengyang Industry will use the process of stage grinding and
screening to recover the graphite from tailings. In the process of
separation, flotation and shaking table is always used. If we want
to achieve comprehensive recovery of several kinds of minerals from
graphite tailings, we should combine several separation methods.
Bauxite tailings: when deal with the bauxite tailings, flotation separation and
magnetic separation is the common process. Moreover, wetting,
dry-tailing stacking and mine filling is always used.
