Installation optimization of air-and-water sprinklers at belt conveyor transfer points in the aspect of ventilation air dust reduction efficiency

Dariusz Prostański, Marta Vargová

Installation optimization of air-and-water sprinklers at belt conveyor transfer points in the aspect of ventilation air dust reduction efficiency

Číslo: 4/2018
Periodikum: Acta Montanistica Slovaca

Klíčová slova: dust, spraying system, prediction, optimization, neural networks

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Anotace: Dust content in the air is one of the big hazards experienced in hard coal mines. In the result of mining of seams and driving roadheadings coal and stone dust is generated. Coal dust has explosive properties, and in a certain accumulation and at certain conditions, it

can cause a disaster whereas stone dust has a harmful impact on a human respiratory system and may cause pneumoconiosis. Both kinds of
dust are present in the mine air simultaneously but in different proportions and concentrations. Design solutions and a principle of operation
of Bryza-1200 transfer point sprinklers are described in the paper. An application of these sprinklers in coal mines, in different
configurations and development of this solution over a period of a recent few years, is presented. Test results are given and an analysis of
dust reduction in the aspect of positioning the components of Bryza-1200 sprinkler, in relation to the conveyor transfer point, is described. A
shape of the transfer point, its speed, the direction of ventilation air flow, dimensions of the working and a position of the conveyor transfer
point in relation to the working axis have an impact on the installation.