Thickener underflow concentration, mud layer height, soft measuring device and method for internal ore quantity

Abstract

The invention proposes a thickener bottom flow concentration, mud layer height, and internal ore quantity soft measuring device and method, which belong to the field of dressing and metallurgy, and include N pressure sensors, cables, steel cables, and counterweights. N pressure sensors are used to measure the pressure of the pulp to be tested at different heights in the thickener, and determine the horizontal hoisting position of the steel cable on the thickener running frame according to the lateral position of the Nth pressure sensor, and collect the underflow concentration value of the thickener Fitting modeling with the pressure data of N pressure sensors is used to measure the underflow concentration, mud layer height, and internal ore volume of the thickener of the pulp to be tested. The invention has the advantages of low cost, convenient installation, no radiation source problem, long maintenance period and convenient maintenance. Through field application and comparison with off-line concentration detection value, mud layer height measurement value and ore input volume, it shows that the measurement accuracy of the invention can meet the production site requirements.

Description

technical field [0001] The invention belongs to the field of beneficiation and smelting, and in particular relates to a thickener underflow concentration, mud layer height, and internal ore quantity soft measuring device and method. Background technique [0002] With the rapid development of the country, the continuous advancement of industrialization and urbanization, and the continuous development and utilization of mineral resources, high-grade ores are gradually decreasing. The industry has to increasingly face the problem of recovering mineral resources from poor, fine and miscellaneous ores, and the supply of mineral resources is facing unprecedented pressure. The hydrometallurgical process has the advantages of being able to process low-grade complex ores, high-efficiency production, and low emissions, and it has become more and more widely used in the field of non-ferrous metal smelting. Thickener is a typical solid-liquid separation equipment, widely used in hydrom...

AI Technical Summary

Problems solved by technology

After years of development of the thickener, from the initial addition of no flocculant, to the addition of flocculant, to the high-efficiency thickener, deep cone thickener, the thickening effect has been continuously improved, but there is still a lack of detection of key variables of the thickener. It is impossible to accurately understand the internal operation status of the thickener, which mainly includes the following two aspects: First, it is difficult to detect the concentration of the underflow of the thickener. The application of thickener is becoming more and more difficult; secondly, due to the complicated mechanism of the thickening process and the invisible internal state, etc., there is a lack of understanding of the internal operating state of the thickener, and it is difficult to detect the height of the thickener mud layer and the amount of internal ore.

The thickener is the key equipment in mineral processing and metallurgy, but there is a problem that the key variables cannot be detected, so that the thickener cannot reach the best operating state

At present, radiation concentration meters are mostly used to detect the underflow concentration of thickeners, but the radiation concentration meters have disadvantages such as difficulty in approval of radiation sources, difficulty in maintenance, etc.

[0003] Due to the lack of detection means, key variables cannot be detected, and the concentration of the underflow of the thickener cannot be further increased. As a result, the process function of this process cannot be effectively utilized, and it will also interfere with upstream and downstream production.

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