INSTALLATION FOR PROCESSING OF GRANULAR GOLD-CONTAINING MATERIALS Russian patent published in 1996 - IPC

FIELD: hydrometallurgy of noble metals; can be used in extraction of gold from gravioconcentrated and other granular materials, in particle, installation for processing of gold-containing granular materials. SUBSTANCE: the installation, using an Akins classifier with branch- pipes for drainage of liquid phase, inlet and outlet of sands, mall whose inlet is connected to the liquid phase drainage branch-pipe of the classifier and delivery branch-pipe, is additionally provided with the second classifier installed in a closed circuit with the first classifier is connected to the branch-pipe for inlet of sands of the second classifier, the sand branch-pipe of the second classifier is connected to the branch-pipe for inlet of sands of the first classifier for connection of the branch-pipe for outlet of sands of one of the classifiers to the mill inlet; the branch-pipe for drainage of liquid phase of the second classifier is connected to the pump inlet branch-pipe, and the pump outlet branch-pipe is connected for disconnection from the sands outlet branch-pipe of the first and/or second classifier. EFFECT: enhanced efficiency. 1 dwg