On March 16, “a borehole fixed-point gas non-destructive sampling and extraction device” developed by Baode Coal Mine of Shendong Coal was granted a national invention patent. The successful implementation of this device has fortified the “data defense line” for precise gas hazard control in coal mines.
The complex and variable underground geological conditions at Baode Coal Mine have long presented challenges for deep gas sampling, including difficulties in location positioning, severe contamination and incomplete analysis. Traditional sampling methods are often subject to interference from surrounding rock gas, leading to data inaccuracies and directly impacting the scientific soundness and safety of gas drainage plans. The newly patented device innovatively integrates a drill rod, a retractable coal sample container, and a five-stage extraction mechanism, achieving an integrated “sampling-extraction-analysis” process and successfully addressing these challenges.
Since its application, the device has effectively addressed pain points of data distortion and incomplete extraction associated with traditional gas sampling, significantly enhanced the accuracy of gas parameter detection, shortened the evaluation cycle for gas drainage plans, and provided a solid technical foundation for safe and efficient working face extraction. Looking forward, Baode Coal Mine will continue to focus on key areas including gas control and safe mining, deepen industry-university-research collaborative innovation, and advance the commercialization and application of more patented technologies, thereby delivering robust contributions to ensuring stable and secure energy supplies.
