Residues and tailings management

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Residues and tailings management

ALTERNATIVES FOR FILTERED TAILINGS





CSN seeks innovative projects that offer alternatives for the sustainable destination and use of the tailings from Casa de Pedra mining site. This residue is fed into the filtration process and the filtrate content which is approximately 15% moisture is pumped and subsequently loaded and transported to the tailing disposal stacks. Its main characteristics are 95% passing material in 0.15mm and the iron and silica elements are respectively 20% and 70%. We are looking for innovative solutions capable of dealing with residues in a way that reduces the costs of the transportation and stacking process and is environmentally friendly.

BUDGET R$100.000,00

LOCATION OF THE PoC: Mineração Casa de Pedra



Residues and tailings management

DYNAMIC BEHAVIOR OF THE INTERNAL PART OF THE DAMN SOLID FILL





We are looking for solutions capable of investigating the internal behavior of the solid fill and to monitor the changes of the structure in a continuous way, which allow to analyze trends of displacement, infiltration, internal erosion (pipping), water level, through 3D modeling of the structure and constant feedback of information.

BUDGET R$60.000,00

LOCATION OF THE PoC: Não definido



Operational Efficiency

1. Removal of impurities / niobium concentrate
2. Detection of visible smoke
3. Impact reduction of tears in Conveyor Belts
4. Increase in grinding efficiency and reliability of the SAG mill
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Alternative energy sources

1. Increase in energy efficiency of the mining equipment
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Water Management

1. Dust reduction on the roads with lower water consumption and at low cost
2. Moisture reduction in iron ore in the chain
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Security: Operational and SSO

1. Detection and invasion prevention across mining area borders
2. Objective forecast of lightning occurrence in open areas
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Social Development

1. Integrated analysis of indicators of social development
2. Promote local entrepreneurship using coproducts from mining and steelmaking
3. Innovation in dialogue and engagement
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