Jet flow microbubble flotation machine for strengthening mineralized bubble and ore pulp separation

Abstract

The invention discloses a jet flow microbubble flotation machine for strengthening mineralized bubble and ore pulp separation. The jet flow microbubble flotation machine comprises a cylindrical upper barrel body and a conical lower barrel body, the cylindrical upper barrel body and the conical lower barrel body are communicated with each other, an ore pulp gas distribution box is arranged above the cylindrical upper barrel body, a rectifying grating and a plurality of longitudinal partition plates are arranged in the cylindrical upper barrel body, the longitudinal partition plates are evenly distributed along the section in a radial mode, a lower guide pipe is arranged between every two adjacent longitudinal partition plates, the top ends of the lower guide pipes are connected with a bubble generator assembly, and a partition plate is arranged in the ore pulp gas distribution box and divides the ore pulp gas distribution box into an upper-layer structure and a lower-layer structure; the upper layer is used for ore pulp distribution, the lower layer is used for distributing sucked air, the upper layer and the lower layer of the ore pulp gas distribution box are sequentially connected with the input end of the bubble generator assembly, a plurality of inclined plate assemblies are obliquely arranged in the center of the interior of the conical lower barrel body, and the inclined plate assemblies are distributed around the center of the conical lower barrel body.

Description

technical field [0001] The invention relates to the field of coal slime flotation devices, in particular to a jet micro-bubble flotation machine which strengthens the separation of mineralized air bubbles and ore pulp. Background technique [0002] Froth flotation is a common method for refining minerals from fine-grained ore pulp. Jet-flow micro-bubble flotation column is a commonly used type of flotation equipment, among which the German Imhoflot air flotation machine and Australia's JAMESON CELL are the most representative. The German Imhoflot aerated flotation machine adopts the combined multi-nozzle Venturi jet aeration principle. After aeration and mineralization, the ore slurry is fed into the aerated slurry distributor connected to the bottom of the downcomer. The aerated slurry distributor is equipped with several upward nozzles. An upward gas-solid-liquid three-phase jet flow is formed in the tank, and the mineralized bubbles and the pulp flow are separated during ...

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Problems solved by technology

[0004] The present invention aims to solve the problem of separation accuracy and processing capacity caused by the mutual interference between the mineralization bubbles and the pulp flow movement of the existing jet micro-bubble flotation machine, the entrainment of the mineralization bubbles in the tailings, and the unsuitability for high aeration operating conditions. In order to solve the problems such as limitations, a jet micro-bubble flotation machine suitable for high-inflated operating conditions is provided, which is characterized by strengthening the segregation of mineralized air bubbles and ore pulp and having a blocking effect on the entrainment of micro-bubbles into the ore pulp flow.

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