Nachhaltige Antriebstechnologien im Bergbau: Szenario-basierte Machbarkeitsstudie zur Einführung einer klimaneutralen Betriebsweise im Örterbau

The Knauf Gips KG has set itself the goal of achieving greenhouse gas-neutral production by 2045. In this context, a concept for reducing greenhouse gas emissions is being developed for the Hüttenheim mine in Germany. Every year, 250,000 tons of anhydrite are mined there. The central question of this thesis is which technologies have the potential to enable greenhouse gas-neutral and at the same time economical operation. The first step was to formulate targets for the greenhouse gas-neutral operation of the machines. The technology selection was narrowed down step by step to four scenarios by checking target fulfillment and practical feasibility. For these scenarios, the key performance indicators of the machines were modeled in Excel and the results were examined for compliance with the targets. The modeling shows that energy costs can be reduced by using bio-methane drives, battery-electric drives and a belt conveyor system compared to diesel-powered machines. The savings are offset by higher investment costs, particularly in the case of the belt conveyor system. The results show that bio-methane and battery-electric drives offer the greatest potential for greenhouse gas-neutral operation. Technically, greenhouse gas-neutral operation is possible, but the energy cost savings alone do not allow amortization within the expected service life. The results of this work provide Knauf Gips KG with a data basis for developing its strategy for greenhouse gas reduction in raw material extraction. The choice of technology depends largely on possible synergies through company-wide integration, which is why the model created can be transferred to other mines in the group.