Method for predicting ash content of clean coal in flotation process

Abstract

The invention relates to a method for predicting the ash content of clean coal in the flotation process, belongs to the technical field of key index prediction in the coal dressing industry, and solves the problem that the ash content of existing flotation clean coal cannot be effectively, accurately and rapidly detected. The method comprises the following steps: collecting data in real time, wherein the data comprises a flotation froth image, a tailing image, flotation feeding concentration, flotation feeding flow and flotation liquid level; inputting a flotation froth image collected in real time into the trained clean coal ash content prediction main model, and processing to obtain a clean coal ash content prediction value; performing normalization processing on the gray characteristic value, the flotation feeding concentration, the flotation feeding flow and the flotation liquid level of the tailing image acquired in real time, and inputting the gray characteristic value, the flotation feeding concentration, the flotation feeding flow and the flotation liquid level after normalization processing into the trained clean coal ash content prediction compensation model; processing to obtain a clean coal ash content error prediction value; and compensating the clean coal ash content prediction value by using the clean coal ash content error prediction value to obtain a clean coal ash content prediction result.

Description

technical field [0001] The invention relates to the technical field of predicting key indicators of the coal preparation industry, in particular to a method for predicting the ash content of clean coal in a flotation process. Background technique [0002] China is a big country in coal production and consumption. With the proposal of the "dual carbon" goal, the coal industry needs to build an efficient and clean utilization system, and the transformation of coal preparation plants to digitization, automation and intelligence is inevitable. Flotation is the most widely used method for fine-grained coal separation. It mainly uses the difference of mineral surface hydrophobicity to separate fine-grained coal and gangue. It is a very complex physical and chemical process affected by multi-variable synergy. [0003] However, all the time, the coal preparation plant has been monitoring the ash content of clean coal through the fast ash experiment, and the fast ash experiment proce...

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Problems solved by technology

[0005] In view of the above analysis, the embodiment of the present invention aims to provide a method for predicting the ash content of clean coal in the flotation process to solve the problem that the existing flotation clean coal ash content cannot be effectively, accurately and quickly detected

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