Maintaining the functionality of the coal settling basin at the underwater pit Kovin

Abstract

Underwater coal exploitation is carried out by the use of underwater excavator 'Kovin I'. The mined coal is transported through a pump system as a hydro mixture via the pipeline Ø900 mm to the facility for irrigation and classification of the mined coal. From this facility, the undersieve goes to the coal settling basin, where in the area of over 32 ha the complete sediment settling is done. Considering that the material durability is limited, this paper presents a way to empty, i.e. maintain the coal settling basin.

Keywords

• coal
• underwater exploitation
• settling tank
• kovin