Online ore mixing device for concentrate product of magnetic separator

Abstract

An online ore mixing device for concentrate products of a magnetic separator comprises a separation groove of a drum type magnetic separator, a separation drum, a concentrate washing water pipe, a concentrate box, a concentrate box ore discharging pipe, a tailing box and a control box, and is characterized in that the ore mixing device is connected between the tailing box and the concentrate washing water pipe, and a concentrate grade detection mechanism is arranged on the concentrate box ore discharge pipe. The ore mixing device comprises an ore distribution pipe, an ore return main pipe, anelectric knife gate valve I, a pressure pump and a tailing joint; and the concentrate grade detection mechanism consists of a sampler and an automatic grade instrument. The device has the advantages that the amount o tailings mixed into the concentrate box is controlled by controlling the opening degree of a valve on a return main pipe of the tailing box and using the valve as concentrate flushingwater, so that the concentrate grade is adjustable, the concentrate grade of the overhigh single magnetite is finally controlled to be 68%-69%, the concentrate yield and the iron recovery rate are increased, and blast furnace smelting is facilitated.

Description

technical field [0001] The invention belongs to the technical field of magnetic separation equipment for ore dressing plants, and in particular relates to an online ore mixing device for concentrate products of a magnetic separator. Background technique [0002] At present, most iron ore minerals have a certain degree of magnetism, so magnetic separation is the most important beneficiation method for iron ore. Among them, strong magnetic minerals such as magnetite and titanium magnetite are mostly separated by permanent magnetic drum magnetic separators. select. Magnetite has relatively large reserves at present. For a single magnetite, due to its single mineral type, there is a lack of similar mineral types that interfere with magnetic separation, and some magnetite embedded with coarse particle size is an ore that is very easy to separate. After the individual ores are dissociated, the magnetic separation is carried out with a drum magnetic separator, and the iron grade of...

AI Technical Summary

Problems solved by technology

Not only is the procurement of raw materials complicated, but also when mixing ore, it is necessary to add low-grade ore resident facilities, ore storage facilities for feeding and discharging facilities, and mixing yards

The total storage time of general mine facilities and mixing yards generally takes 2-7 days, which will require a large storage space and high infrastructure investment

And the mixing yard also needs to use expensive mixing facilities, such as stackers and reclaimers, and the investment in equipment is also high

All of these greatly increase the investment and operating costs of enterprises

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