In a groundbreaking study, researchers have unveiled a novel distributed liquid supply system designed to enhance the efficiency of fully mechanized mining operations. Conducted at the S1204 working face in Ningtiaota Coal Mine, the research led by Ying Ma from the Coal Mining and Designing Department at Tiandi Science and Technology Co., Ltd. in Beijing, offers a promising solution to the challenges of rapid support movement in hydraulic systems.
The impetus for this research stems from the pressing need for increased production capacity in the mining sector. With a target of 10 million tons per year, the study identifies that the support movement speed must reach an impressive 12 meters per minute. Traditional systems have struggled to keep pace with such demands, often leading to inefficiencies and potential operational hazards. “Our findings indicate that employing double or triple support moving in groups is crucial to meet the advancing time requirements,” Ma stated, highlighting the innovative approach taken in the study.
Central to the research is the introduction of a distributed energy storage and pressure stabilization system. By integrating accumulators with check valves into the hydraulic support framework, the team has successfully addressed the dual challenges of insufficient instantaneous flow and excessive average flow supply capacity. This innovative design not only stabilizes pressure fluctuations but also enhances the overall reliability of the hydraulic system.
Simulation results from the study reveal impressive efficiency gains. After the installation of the accumulators, the advancing time for double and triple support movement was reduced by 6.2% and 11.5%, respectively. Notably, under continuous operational conditions, the double support system demonstrated a remarkable 15% reduction in advancing time. “The installation of distributed accumulators has significantly improved the advancing speed of supports, reducing the instances of loss during group pulling,” Ma added, underscoring the practical implications of their work.
The real-world application of these findings has already shown promising results. The average daily footage of the working face increased from 16.7 to 19.8 cuts, with a normalized daily footage reaching 22 cuts. This leap in productivity is not only a testament to the effectiveness of the new system but also a potential game-changer for the mining industry, which is continually seeking ways to enhance operational efficiency and safety.
As the energy sector grapples with the dual pressures of meeting rising demand and ensuring sustainable practices, innovations like those presented in this study could pave the way for future advancements in mining technology. By integrating more efficient hydraulic systems, companies can not only boost production but also reduce their environmental footprint, aligning with broader goals of sustainability.
Published in ‘Meitan kexue jishu’ (Journal of Coal Science and Technology), this research marks a significant step forward in the quest for more efficient mining operations. The implications for the energy sector are profound, as enhanced mining productivity directly contributes to the overall energy supply chain. For more information about the research and its applications, visit Tiandi Science and Technology Co., Ltd..
