Uniform middling distributor of large-size rotational flow microbubble flotation column

Abstract

The invention relates to a uniform middling distributor of a large-size rotational flow microbubble flotation column, mainly comprising a circulating pump, a flow splitting device, four distributors, Venturi tube bubble generators, rubber tubes and a plurality of middling tangential feed inlets, wherein the plurality of middling tangential feed inlets are uniformly distributed on the lower part of a flotation column body; the four distributors are erected at the outer side of the upper part of the flotation column body; branch pipes of the four distributors are connected with the Venturi tube bubble generators with the number equal to that of the plurality of middling tangential feed inlets; outlets of the Venturi tube bubble generators are communicated with the middling tangential feed inlets through the rubber tubes; inlets of the four distributors are pairwise opposite and respectively abut against the flow splitting device connected with the circulating pump at a right angle through equidistant flow splitting pipes; and the flow splitting device is provided with the valve controlling flow quantity. The invention can meet the requirement for the uniformity of middling distribution of the large-size flotation column with a column body diameter more than 4 m, ensures that the flow entering the middling tangential feed inlets positioned on the rotational flow scavenging section of the large-size flotation column is uniformly and stably distributed, and has convenient and fast operation.

Description

technical field [0001] The invention relates to a distributor, in particular to a medium ore distributor suitable for the separation of <0.5mm fine-grained minerals in a large swirl micro-bubble flotation column. Background technique [0002] The cyclone micro-bubble flotation column can effectively separate <0.5mm fine-grained minerals, and has been successfully industrialized. The equipment integrates flotation and cyclone gravity separation methods, the column flotation is the roughing section, and the cyclone enhanced sorting is the sweeping section. The middling ore distributor is an external device in the scavenging section, which is one of the key factors affecting the separation effect of the flotation column. Its function is to generate fine air bubbles, and evenly feed the mixture of air bubbles and middling ore into the scavenging section of the column. And form a swirl force field. The diameter of the flotation column currently used is less than 3.5m, and...

AI Technical Summary

Problems solved by technology

Therefore, during the sorting process, it is not convenient to simultaneously observe the operation of the bubble generator connected to the distribution box and the foam collection tank, which reduces the convenience and effectiveness of equipment operation

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