Mineral surface bubble nucleation and bubble growth process observation device and method

Abstract

The invention discloses a mineral surface bubble nucleation and bubble growth process observation device and method. A vacuum pump, a pressure control assembly and a container are all arranged on a workbench. The light source supply assembly and a camera shooting assembly just face a cavity of the container, an air suction end of the vacuum pump is sequentially communicated with a pressure valve,a pressure sensor, a pressure gauge, a pressure release valve and the container so as to adjust the pressure in the cavity under the air suction effect of the vacuum pump, and therefore steam bubblescontrolled by diffusion or air bubbles caused by phase change are obtained. The interface bubbles prepared by the device and the method disclosed by the invention belong to heterogeneous bubble nucleation; steam bubbles or air bubbles are obtained; the pressure drop amplitude and the solution condition can be changed according to requirements, and then the properties, the number, the sizes and thecontact angles of mineral interface bubbles are selectively controlled such that the heterogeneous bubble nucleation and growth process on the mineral surface can be effectively researched, and the device and method have important guiding significance for the application of heterogeneous bubble nucleation in the mineral flotation field.

Description

technical field [0001] The invention relates to the technical field of flotation, in particular to an observation device and method for the nucleation and growth process of bubbles on the surface of minerals. Background technique [0002] In the field of flotation technology, as the rising carrier of the target minerals, the collision and adhesion efficiency of the flotation bubbles with the minerals play a very important role in the separation of the target minerals and non-target minerals. The traditional flotation bubbles are mostly However, due to the characteristics of the currently developed and utilized minerals gradually turning to "lean, fine, and miscellaneous", millimeter-level flotation bubbles can no longer meet the flotation of fine-grained minerals. Therefore, it is necessary to study micro-nano bubbles with smaller diameters , to improve the flotation efficiency of fine minerals. [0003] The existing micro-nano bubbles in the flotation system are mainly obt...

AI Technical Summary

Problems solved by technology

[0002] In the field of flotation technology, as the rising carrier of the target minerals, the collision and adhesion efficiency of the flotation bubbles with the minerals play a very important role in the separation of the target minerals and non-target minerals. The traditional flotation bubbles are mostly However, due to the characteristics of the currently developed and utilized minerals gradually turning to "lean, fine, and miscellaneous", millimeter-level flotation bubbles can no longer meet the flotation of fine-grained minerals. Therefore, it is necessary to study micro-nano bubbles with smaller diameters , to improve the flotation efficiency of fine minerals

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