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- Title
Optimisation of coal beneficiation in a jig in changing hydrodynamic conditions of its operation.
- Authors
SUROWIAK, Agnieszka; FOSZCZ, Dariusz; NIEDOBA, Tomasz
- Abstract
The paper presents the analysis of hard coal beneficiation in a jig with regard to the optimal useful fraction recovery in concentrate and non-useful fraction in tailings. The process was evaluated based on the industrial sampling of a jig for coal fines and granulometric and densimetric analyses of collected product samples under laboratory conditions. In separated size-density fractions of partition products, yields of products were calculated, and their ash contents were determined. The beneficiation curves were plotted on the basis of the results of granulometric, densimetric and chemical analyses of obtained size-density fractions, the balance of partition products and appropriate calculations. This made it possible to evaluate the process to optimise the device's operation to obtain higher recovery with the possibly highest concentrate quality. In the paper, the hard coal beneficiation results were evaluated with regard to the optimal organic fraction recovery in concentrate and mineral components in tailings with respect to the process control. The obtained characteristics of beneficiation were analysed to select the optimal technological coefficients for optimisation of the device's operation on the basis of the Fuerstenau curve, Halbich curve and selectivity curve. Multi-criteria elaboration of research material, on the basis of the qualitative approach of selectivity and Fuerstenau curves, indicated differentiation during the beneficiation of fine and coarse particles from the range of granulation being directed to the jigging process. This is a commonly known fact, but it is not necessarily used in industrial practice.
- Subjects
ANTHRACITE coal; COAL; PARTICULATE matter; GRANULATION; ANALYTICAL chemistry; COAL sampling
- Publication
Acta Montanistica Slovaca, 2022, Vol 27, Issue 1, p1
- ISSN
1335-1788
- Publication type
Article
- DOI
10.46544/AMS.v27i1.01