Multiple circulating column outside micro-bubble mineralizing flotation column

Abstract

A multiple circulating column outside micro-bubble mineralizing flotation column is composed by a column body (1), a bubble discharging sliding groove (2), an upper circulating cone groove (4), an upper circulating pump feeding pipe (5), an upper circulating pump (6), an upper circulating mineralizing feeding circular pipe (8), a plurality of upper circulating mineralizing device components (9), a plurality of upper circulating mineralizing air feeding pipes (13), a lower circulating cone groove (16), a lower circulating pump feeding pipe (18), a lower circulating pump (19), a lower circulating mineralizing feeding circular pipe (21), a plurality of lower circulating mineralizing device components (22), a plurality of lower circulating mineralizing air feeding pipes (26), and a tailing outlet pipe (14). The column has the advantages that each mineralizing circulating system comprises a plurality of micro-bubble mineralizing device components, so that the mineralizing efficiency of pulp is guaranteed; the flotation column is composed by an upper and a lower pulp mineralizing systems, thereby the recovery rate of minerals is guaranteed; and the column is suitable for a flotation process emphasizing the recovery rate of minerals such as bauxite, apatite and the like.

Description

technical field [0001] The micro-bubble mineralization flotation column outside the multiple circulation column belongs to the field of mineral processing flotation technology, and is used in the flotation separation process of metallic minerals and non-metallic minerals, and can also be used in the flotation separation process of coal beneficiation. Background technique [0002] Flotation technology is one of the most commonly used technologies in mineral processing technology and is widely used in mineral processing technology worldwide. Flotation technology is based on the difference in surface properties between mineral particles and gangue particles. After hydrophobic treatment is performed on the surface of gangue or mineral particles, the buoyancy of air bubbles is used to float the mineral or gangue particles, thereby realizing the separation of gangue and minerals. As the equipment of flotation process, flotation cell has always been the key research object of globa...

AI Technical Summary

Problems solved by technology

China University of Mining and Technology 97236893.0 double-swirl static micro-bubble flotation column is a double-swirl static micro-bubble flotation column suitable for the depth separation of fine-grained coal, including a column body and a foam trap set on the upper part of the column body The collection device and the internal and external swirling devices at the bottom of the column, the middle of the column is equipped with a static medium plate, the misalignment between two adjacent static medium plates is 45°, and the feeding port is equipped with a self-priming microbubble generator, so that the After the material enters the column, the easy-to-select material immediately floats up. In addition, the medium ore at the bottom of the column is used as a circulating slurry, and the internal and external swirl devices are used for purification and separation. The mineralized bubbles circulate when passing through the static medium plate during the floating process. flow to ensure the recovery accuracy, the flotation column introduces the concept of microbubble mineralization to improve the flotation efficiency, but its internal swirl structure makes it only suitable for coal flotation, because it is difficult to reflect roughing, sweeping Unlike the selected beneficiation process, it is difficult to be used in the beneficiation process of metal minerals

Central South University 01145542.X is a flotation column suitable for bauxite reverse flotation desiliconization, which is composed of a column body, an ore feeder, a foam tank, an ore discharge port, a cleaning water feeder, etc., and is characterized in that: the upper end of the column body Set up a foam tank, set a contactor at the lower end to communicate with the slurry circulation pipe in the column, install a cleaning water feeder in the upper enrichment area of ​​the column, install a feeder in the sorting area in the column, and set a stabilizing plate and a column disperser below it They are respectively installed under the cleaning water feeder and the mine feeder. In practical application, the invention reduces the loss of diaspore due to foam inclusions, and is of great help in improving the aluminum-silicon ratio of bauxite concentrate. However, it is difficult to control the Al-Si ratio of the tailings due to the lack of a mechanism for the floating of large-particle poor conjoint organisms.

Wang Huaifa 02270160.5 A two-stage inflatable micro-bubble flotation column equipment belongs to a flotation column device for fine-grained coal slime separation. It includes a cylindrical shell, a clean coal collection tank, a feeding distribution pipe, and several first-stage Feeding aeration unit composed of bubble generator, downcomer and feeding distribution ring, circulating material distribution ring, 4 to 20 second-stage bubble generators, connecting pipe, circulating pump, conical bottom and inverted conical suction device , including multi-layer steady flow trays, vortex tubes, and a tailings regulating mechanism composed of tailings boxes, discharge pipes, sleeves and diverter valves. This invention is actually still a single-cycle method, and this cycle method cannot achieve multiple Circular flotation process, the description of the technical solution of the invention is not clear, it is difficult to realize technically

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