lead zinc ore dressing flotation system

lead zinc ore dressing flotation system

How to Process Oxidized Lead Zinc Ore by Flotation

The flowsheet uses a two stage open circuit crushing section with a capacity of 100 275 tons per 24 hours to reduce the ore to minus ¾ inch for feed to the ball mill. The size of crushing equipment will depend on the size of ore and tonnage of material delivered to the crusher.

See full list on

The crushed ore minus ¾ inch is fed by means of a belt ore feeder to a Ball Mill which operates in closed circuit with a spiral classifier to produce a minus 65 mesh classifier overflow product.

See full list on

The classifier overflow passes to a Conditioner where sodium sulphide is added to sulphidize the oxidized lead minerals. The sulphidized lead minerals are subjected to flotation using xanthates or mercaptans and pine oil to produce a flotation concentrate which is cleaned two times to produce a high grade marketable lead concentrate. The flotation tailing from the lead section passes to a wet cyclone to make a primary sand slime separation. The cyclone overflow passes to a Hydroclassifier which is operated to overflow a turbid overflow which contains the minus 20 micron slimes. This step is often necessary to remove the fine slimes which interfere in the flotation of the oxidized zinc minerals. The combined underflows from the Hydroclassifier and cyclone represent the feed to the zinc flotation section. The combined products flow to a zinc conditioner where soda ash, sodium silicate and an organic colloid are added to disperse the pulp and complex the slimes which might interfere wi...

See full list on

The final lead and zinc concentrates are pumped by concentrate pumps to Thickeners for dewatering prior filtration. The thickener underflow at approximately 50% solids is pumped to a Disc Filter by means of a Diaphragm pump. The filter cakes pass to concentrate bins for storage.

See full list on

Automatic Samplers are used to sample the feed, concentrate and tailings. A portion of the tailingfrom the lead flotation section is removed and treated on the Visual Sampler. The flotation results and conditions can be controlled easily by observing the concentrate streak on the table.

See full list on

Live Chat

Products

Copyright © 2021.Company name All rights reserved.

Call Us +86
15903396981
whatsapp
whatsapp