Device for thinning liquid film between minerals and bubbles or oil drops

A liquid film and bubble technology, which is used in measurement devices, phase influence characteristics measurement, material analysis by optical means, etc., can solve the problem that the capillary active driving method cannot apply optically opaque minerals and simultaneously obtain liquid film thinning kinetic tests. information, inability to carry out complete drainage and other problems, to achieve the effect of shortening test time, reducing sample consumption and improving accuracy

Active Publication Date: 2020-06-12
CHINA UNIV OF MINING & TECH
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Problems solved by technology

Although the Scheludko tank aspiration method can be used for optically opaque mineral testing, the operation is complicated and cannot be completely drained during the test, and accurate data cannot be obtained. The capillary active driving method cannot be applied to

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  • Device for thinning liquid film between minerals and bubbles or oil drops

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[0026] The preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. The accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to explain the principle of the present invention, and are not used to limit the scope of the present invention.

[0027] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly defined and limited, the term "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection, an electrical connection can be a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028]...

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Abstract

The invention relates to a device for thinning a liquid film between minerals and bubbles or oil drops, belongs to the technical field of flotation colloid chemistry, and solves the technical problemsthat (1) in the prior art, a liquid film thinning device capable of being used for testing optically opaque minerals cannot discharge liquid thoroughly; and (2) a liquid film thinning device cannot obtain interaction force information between minerals and bubbles or oil drops at the same time. The device comprises an optical interference unit, a synchronous driving unit, a test unit, an image acquisition and processing unit and a control unit, the synchronous driving unit is electrically connected with the control unit, the control unit is electrically connected with the test unit, and the test unit is electrically connected with the synchronous control unit; the optical interference unit is used for generating interference fringes in the process that minerals get close to bubbles or oildrops. The synchronous driving unit is used for automatic focus tracking; the test unit is used for converting micro-deformation into acting force. The device is simple and compact in structure, simplifies the test operation, saves the test time, and saves the consumption of a test sample.

Description

technical field [0001] The invention relates to the technical field of flotation colloid chemistry, in particular to a device for thin liquid film between minerals and air bubbles or oil droplets. Background technique [0002] At present, the adhesion of minerals to air bubbles or oil droplets at the micro-nano scale has attracted extensive attention from scholars in the field of flotation colloid chemistry. Technology emerges gradually. The information on the interaction force between minerals and air bubbles or oil droplets can be directly obtained by AFM (Atomic Force Microscope, atomic force microscope). In force measurement, the deformation of the micro-cantilever caused by the force between minerals and air bubbles or oil droplets is converted into a voltage signal by means of an optical lever system. According to Hooke's law, the deformation of the micro-cantilever is multiplied by the elastic coefficient, and the mineral and air bubbles or oil droplets can be obtain...

Claims

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Application Information

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IPC IPC(8): G01N21/45G01N21/01
CPCG01N21/01G01N21/45G01N2021/0112
Inventor 邢耀文朱春云桂夏辉曹亦俊丁世豪
Owner CHINA UNIV OF MINING & TECH
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