Flotation concentrate grade detection method based on multi-parameter feature fusion

A technology of feature fusion and flotation concentrate, which is applied in the direction of color/spectral characteristic measurement, measuring device, specific gravity measurement, etc., can solve the problems of ray-type grade meter danger, difficult management, health hazards of employees in the surrounding environment, etc., and achieve improvement Model performance and stability, overcoming errors, compensating for the effects of reduced instrument accuracy

Pending Publication Date: 2022-04-22
ANSTEEL GRP MINING CO LTD
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Problems solved by technology

At present, the widely used automatic concentrate grade detection technology includes X-ray fluorescence analysis, but the ray type grade mete

Method used

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  • Flotation concentrate grade detection method based on multi-parameter feature fusion
  • Flotation concentrate grade detection method based on multi-parameter feature fusion
  • Flotation concentrate grade detection method based on multi-parameter feature fusion

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Embodiment Construction

[0084] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0085] Such as Figure 1-2 As shown, the present invention is based on the flotation concentrate grade detection method of multi-parameter feature fusion, is characterized in that comprising the steps:

[0086] Step (1) Use a high-precision industrial camera (MV-VS030FC-L model) to collect images of flotation mineral particles and flotation foam;

[0087] The step (1) is to fix a high-precision industrial camera directly above the flotation tank, use the dynamic mechanical arm to grab the rod head part of the pulp sampling device, dip into the flotation tank, extract the sediment at the bottom of the pulp, and extract the extracted The slurry sample is poured in such as figure 2 On the slurry chute d of the mineral particle image collection platform shown, the material of the slurry chute is a thick glass plate coated with aluminum film. ...

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Abstract

The invention relates to a flotation concentrate grade detection method based on multi-parameter feature fusion. The method comprises the following steps: (1) collecting flotation mineral particles and flotation froth images; (2) detecting the particle size distribution condition of the collected mineral particle image based on an image processing technology; (3) extracting image features of flotation froth, and establishing a sample database; (4) measuring ore pulp concentration and density indexes on line; (5) establishing a multivariable concentrate grade prediction model by using the mathematical relationship among the ore pulp concentration, the density and the concentrate grade; (6) respectively establishing different concentrate grade prediction models based on five different neural networks; and (7) performing multivariable joint optimization by using parameters of the concentrate grade prediction model established by using a particle swarm algorithm, and taking an average value of accumulated sums of output results of the six models as an output value Y of the final flotation concentrate grade prediction model, namely a detection value of the concentrate grade. The method has the advantages that the flotation concentrate grade detection accuracy and precision are higher according to the prediction model.

Description

technical field [0001] The invention belongs to the technical field of flotation concentrate grade detection and analysis in mine development, and in particular relates to a flotation concentrate grade detection method based on multi-parameter feature fusion. Background technique [0002] Concentrate grade is a key process index that characterizes the product quality and production efficiency of the flotation process, and it is of great significance to control the concentrate grade within the target value range. The particle size, concentration and flotation foam characteristics of flotation pulp will all have an impact on the final concentrate grade. However, it is difficult to realize online continuous detection of concentrate grade, pulp concentration and particle size, and it is usually controlled indirectly by controlling the liquid level of the flotation tank, flotation reagents, etc., and the concentrate grade and these variables have strong coupling and nonlinear cha...

Claims

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Application Information

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IPC IPC(8): G01N15/02G01N9/04G01N29/032G01N21/25G01B11/00G01B11/24G06T7/00G06T7/13G06T7/155G06T7/41
CPCG01N15/0205G01N15/0211G01N9/04G01N29/032G01N21/25G01B11/00G01B11/24G06T7/0004G06T7/41G06T7/13G06T7/155G06T7/62G06T2207/10004G06T2207/20152G06T2207/30136
Inventor 丛峰武安玉婷傅国辉张勇宋长春谷安成孙全
Owner ANSTEEL GRP MINING CO LTD
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