In a groundbreaking move that could reshape India’s underground coal mining landscape, South Eastern Coalfields Limited (SECL), a subsidiary of Coal India, has inked a ₹7,040 crore deal with TMC Mineral Resources Pvt Ltd. The agreement aims to revolutionize coal extraction at the Singhali underground mine in Korba using an innovative paste filling technology. This isn’t just about extracting coal; it’s about doing so in a way that minimizes environmental impact and maximizes efficiency.
The paste filling technology is a game-changer. It involves refilling mined-out voids with a thick paste mixture of fly ash, crushed overburden, cement, water, and additives. This method helps maintain the mine’s structural integrity and prevents surface-level disruptions like land subsidence. “By filling the gaps left after coal extraction, we can ensure that the land above remains undisturbed,” said an SECL spokesperson. This is particularly crucial for the Singhali mine, which has faced limitations due to dense surface development, including villages, overhead power lines, and public infrastructure.
The Singhali mine, operational since 1993, was originally approved for an annual output of 0.24 million tonnes. Despite holding 8.45 million tonnes of extractable reserves, traditional caving techniques were deemed unsuitable due to potential risks to the surface environment. The introduction of paste filling technology now enables safe extraction without disturbing the land above. “This technology allows us to extract coal safely and efficiently, even in areas with significant surface constraints,” the SECL spokesperson added.
The project is set to deliver around 8.4 million tonnes of coal over 25 years. But the implications go beyond just the numbers. The successful rollout of this technology could serve as a model for reviving other underground coal mines in similarly constrained areas. It’s a testament to SECL’s commitment to sustainable mining practices and innovation.
SECL, headquartered in Bilaspur, Chhattisgarh, operates primarily in Chhattisgarh and Madhya Pradesh. It’s one of India’s leading coal-producing companies, playing a crucial role in meeting the country’s energy needs. This project aligns with SECL’s focus on maintaining high standards of production while ensuring sustainable mining practices.
The agreement with TMC Mineral Resources Pvt Ltd marks the first use of paste fill technology by a public sector coal company in India. It’s a bold step that could set a new standard for underground coal mining in the country. As SECL embarks on this journey, the mining industry watches with keen interest. The success of this project could pave the way for similar initiatives, driving innovation and sustainability in the sector.
But it’s not just about the technology. It’s about the potential impact on communities, the environment, and the industry as a whole. How will this technology be received by local communities? Will it set a new benchmark for sustainable mining practices? Only time will tell. But one thing is clear: SECL’s move is a significant step towards a more sustainable and innovative future for India’s coal mining industry. The sector is watching, and the stakes are high. This is more than just a mining project; it’s a statement of intent.
