| abstract |
Prepared a system of APT by tungsten mineral material no effuent discharge, it has raw material preparation facilities and sinter leaching device, and raw material preparation facilities has raw material preparation controller, comprises proportion scale controller and raw mill fine granularity controller.Sinter leaching device has sinter leaching controller, has maturing temperature controller, roasting time controller, calcination atmosphere controller.Leaching device has leaching agent entrance, leaching slurry outlet, feedback gas recovery port, slurry separating, washing liquid recovery port, slag phase washings recovery port, crystal seed entrance; Equipment for separating liquid from solid, it has leached mud feedback port, the outlet of washing lotion feedback, the receiving port of evaporative crystallization water of condensation, crystal seed feedback port; Crystallization apparatus has the gas feedback mouth feeding back to leaching device; The liquid-solid separation device of slurry has the outlet that crystalline mother solution is back to leaching device.The utility model achieves wastewater zero discharge, reaches the state of the art of green metallurgical. |