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Soft concentrate grade measurement method and system based on hybrid sorting system of principal component analysis and online extreme learning machine

A technology of extreme learning machine and principal component analysis, which is applied in neural learning methods, metal testing, soil material testing, etc., can solve problems such as lack of guidance for operators, difficult configuration of concentrators, and large influence of human factors

Inactive Publication Date: 2018-09-04
SHENYANG INST OF ENG
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  • Abstract
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  • Application Information

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Problems solved by technology

The disadvantages of this method are: 1. The influence of human factors is large during manual operation, and the objectivity of the measurement results is poor; 2. The time interval of measurement is long, and the time for feedback of measurement results is also long, so the obtained information lacks guiding significance for operators
Although the concentrate grade can be detected online through the grade detection instrument, the online grade detection instrument is expensive and requires a lot of on-site maintenance. It is difficult to configure most of the concentrators in my country. soft measure method

Method used

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  • Soft concentrate grade measurement method and system based on hybrid sorting system of principal component analysis and online extreme learning machine
  • Soft concentrate grade measurement method and system based on hybrid sorting system of principal component analysis and online extreme learning machine
  • Soft concentrate grade measurement method and system based on hybrid sorting system of principal component analysis and online extreme learning machine

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Embodiment Construction

[0087] In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0088] Such as figure 1 As shown, the embodiment of the present invention provides a concentrate grade soft-sensing system based on a hybrid sorting system based on principal component analysis and online extreme learning machine, including ball mills, thickeners and flotation machines, measuring instruments, actuators, control systems and measurement and analysis systems,

[0089] The measuring instruments include

[0090] A concentration meter for measuring the concentration of the underflow pulp of the thickener D T , installed on the underflow slurry pipeline of the thickener;

[0091] Two flowmeters are used to measure the underflow pul...

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Abstract

The invention discloses a soft concentrate grade measurement method and a soft concentrate grade measurement system based on a hybrid sorting system of a principal component analysis and online extreme learning machine. The soft concentrate grade measurement method comprises the following steps: through an established hardware platform, performing loop control of the thickener underflow ore pulp concentration and the thickener underflow ore pulp flow of the hybrid sorting system of the hybrid sorting system, and acquiring the thickener underflow ore pulp concentration DT, the thickener underflow ore pulp flow FT, a coarse floatation machine ore pulp liquid level hR, a fine floatation machine ore pulp liquid level hC, a scavenging floatation machine ore pulp liquid level hS and a flotationagent addition amount FFR though an analysis software system and a control loop; establishing a soft concentrate grade measurement model achieved by the principal component analysis and online extremelearning machine, and outputting an estimated value of the current concentrate grade through training and measurement of the measurement model. Through the soft concentrate grade measurement method and the soft concentrate grade measurement system, key indexes are provided for operation control of a hybrid sorting process.

Description

technical field [0001] The invention relates to the field of measurement technology in automation technology, in particular to a concentrate grade soft-sensing method and system based on a hybrid sorting system of principal component analysis and online extreme learning machine. Background technique [0002] In the hematite beneficiation plant, in order to improve the quality of concentrate products, after grinding and magnetic separation, a mixed separation system consisting of regrinding process, thickening process and flotation process is adopted, and the concentrate of the mixed separation system It is the final concentrate of the concentrator, and the concentrate grade is an economic and technical indicator to measure the operating efficiency of the production process of the concentrator. At present, it is difficult to measure the concentrate grade online. Manual offline sampling is performed, and manual testing is performed in the laboratory, and the calculated value o...

Claims

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Application Information

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IPC IPC(8): G01N33/24G01N33/20G06N3/08G06K9/62
CPCG06N3/08G01N33/20G01N33/24G06F18/2135
Inventor 李海波庞新富田景贺曾祥萍岳恒贾瑶
Owner SHENYANG INST OF ENG
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