Method for detecting ash content of floatation products

Abstract

The invention discloses a method for detecting the ash content of flotation products, belongs to the technical field of coal dressing methods, and aims to calculate the ash content of the flotation products according to the floatation clean coal yield and the tailing yield. According to the technical scheme, a flow meter and a densimeter are installed on a floatation feed and floatation tailing pipeline, the feed density, the feed flow, the tailing density and the tailing flow of detected products are detected, the clean coal yield and the tailing yield of the detected products are calculated; a relation curve of the statistic flotation clean coal yield and the ash content and a relation curve of the tailing yield and the ash content of coal quality are respectively drawn by the combination of laboratory statistic data of the products, and the clean coal ash content and the tailing ash content of the detected products are calculated according to the curves and the clean coal yield and the tailing yield of the detected products. The method has the advantages of being simple, rapid, convenient to conduct and accurate, is a brand new detection method and creativeness in the field of floatation ash content detection methods, and has great value and significance, and by the adoption of the method, China is made to be at the forefront of the world in the field of the floatation ash content detection methods.

Description

technical field [0001] The invention relates to a method for detecting ash content of a flotation product, in particular to a method capable of calculating the ash content of a product through flotation clean coal yield and tailing coal yield, and belongs to the technical field of coal preparation methods. Background technique [0002] Flotation is to achieve the purpose of separating useful minerals and useless minerals under the action of chemicals and according to the differences in the surface properties of minerals. The important indicators to measure flotation are the ash content of clean coal and tailing coal. The ash content of clean coal must be controlled within a certain range, and the ash content of tailings must also reach a certain level. At present, coal preparation plants generally use three steps of sampling-sample preparation-ashing to measure the ash content of clean coal and tailing coal, and the fastest one takes 1 hour. However, this test result has li...

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Problems solved by technology

Other departments and units in my country are also trying to introduce imaging technology into the determination of ash content in flotation tailings, but no successful reports have been reported so far.

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