The invention discloses
copper-containing
sludge granulating and pre-
drying equipment and a process method. The equipment comprises an
elevator, a stabilizing bin, a front stock bin, a pre-watering stirrer, a rear stock bin, a granulator and the like, wherein an integrated stock bin weighing device is arranged on the front stock bin, and a
pneumatic valve is arranged at the bottom of the front stock bin; the pre-watering stirrer is capable of realizing stirring and scattering, an atomizing
nozzle is arranged above the interior of the pre-watering stirrer and connected with a
water supply device so as to realize accurate water distribution, and an upper level gage and a lower level gage are arranged on the rear stock bin; and materials are conveyed among the rear stock bin, the granulator and a
drying and screening device through a
belt conveyor. The method disclosed by the invention comprises the following steps: accurately distributing water for the mixed
powder, fully stirring the materials in a three-dimensional stirring manner, and forming waterborne and uniform wet materials within 3 minutes.
Pellets with consistent particles can be prepared, the stacking
porosity is improved during
sintering, the phenomenon that the
pellets are burst due to non-uniform internal and external heating is greatly reduced, the phenomenon of non-uniform
kiln section ventilation is greatly reduced, and heat wasted due to
evaporation of the
moisture can be reduced by 300-400 KJ / kg.