Detection of the pulp-froth interface using the ultrasound transit time technique
Detection of the pulp-froth interface using the ultrasound transit time technique
Richter, T.; Heitkam, S.; Odenbach, S.; Eckert, K.
Abstract
The vertical position of the pulp-froth interface in a flotation cell is an important parameter in froth flotation processes which needs to be controlled in situ. For this purpose, we introduce the ultrasound transit time technique (UTTT), a non-invasive technique for detecting and measuring the position of this interface. Based on lab-scale experiments, the method is evaluated for a pulp-air and a pulp-froth interface. The technique was found to be well applicable in pulp with up to 21% particle mass fraction. In a container with 80 mm height the accuracy is found to equal 1mm.
Keywords: lab-scale flotation; level height detection; pulp-froth interface; ultrasound transit time technique
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Minerals Engineering 160(2021), 106679
DOI: 10.1016/j.mineng.2020.106679
Cited 1 times in Scopus
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Permalink: https://www.hzdr.de/publications/Publ-29111