EXTRACTION
Lignite extraction relies on the logic of reallocation. It involves the processes of excavation, transport, and distribution. During its operation, it reshuffles various layers of soil from vertical order to horizontal arrangement of the overburden. Sediment that can be used as fuel is approximately 27% of what is being excavated. To provide enough fuel for the combustion, the Ptolemaida mine operates on 3 shifts, 24 hours a day, 7 days a week.
Figure 1. Operational logic of lignite extraction
Figure 2. Ground-to-ground journey of coal