A method for utilizing backwater before a copper-molybdenum ore dressing plant

Abstract

The invention discloses a copper-molybdenum ore dressing plant front area return water utilization method. In the copper-molybdenum ore dressing plant front area return water utilization method, the ore dressing process of a copper-molybdenum ore dressing plant comprises the steps that raw ores are subjected to semi-self-grinding ball-milling and classification and then subjected to copper-molybdenum mixed roughing through stirring, three-stage mixed molybdenum and three-stage mixed scavenging are conducted separately, copper-molybdenum bulk concentrate is produced through three-stage mixed concentration, and total flotation tailings are produced through three-stage mixed scavenging; the concentrate obtained through copper-molybdenum mixed concentration is subjected to copper-molybdenum separating flotation; the copper-molybdenum separating flotation process comprises the steps that copper-molybdenum separating roughing is conducted, and then three-stage molybdenum molybdenum and three-stage copper-molybdenum separating scavenging are conducted, molybdenum concentrate is produced through molybdenum concentration, and copper concentrate is produced through copper-molybdenum separating scavenging; for the return water utilization method, an original water return method is changed into segmented water return from unified water return. Accordingly, a low-cost segmented direct water return technology is adopted, part of waste water is treated in a centralized mode, the technical problem of multi-metal ore dressing flotation waste water recycling is solved, the return water treatment investment and production cost are greatly lowered, and waste water zero discharge is achieved.

Description

technical field [0001] The invention belongs to the field of polymetallic ore beneficiation process backwater and medicament utilization, and specifically relates to a method for utilizing backwater in front of a copper-molybdenum ore beneficiation plant. Efficient utilization of backwater before the factory. Background technique [0002] Thickening operation should be widely used in the mineral processing process. In the past, the focus of application was on the concentration of minerals. The research on the use of overflow water was not deep enough, and the use of chemicals in the backwater was insufficient, resulting in waste of chemicals and environmental pollution. With the fluctuation of mineral product prices and the strengthening of environmental protection awareness, how to effectively reduce the consumption of chemicals and reduce pollution sources has become a new idea. [0003] The existing technological process is as follows: the raw ore is mixed and roughed wi...

AI Technical Summary

Problems solved by technology

When the concentrated return water is used for various flotation operations, it may increase the mutual inclusion rate of metal elements in various concentrate products, and may even cause harmful elements in the product to exceed the standard, and the recovery rate of metal elements in the product will decrease.

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