Method for improving top coal recovery rate by considering top coal compressive strength and coal caving procedure

• Main Authors: HUANG XIAO, LIU DAJIANG, KUANG TIEJUN, GAO RUI, LIU HONGJIE, ZHANG XIAORONG
• Format: Patent
• Language: Chinese; English
• Published: 09.01.2024
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; MINING OR QUARRYING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS

According to the method for improving the top coal recovery rate by considering the top coal compressive strength and the coal caving procedure, the influence of the top coal compressive strength on the top coal recovery rate is fully considered, and a reasonable and effective coal caving process is designed based on the top coal compressive strength of different areas, so that the top coal recovery rate can be greatly improved; the method has the advantages of simple process, strong operability, low cost, high benefit and the like, has wide popularization and application prospects, and is beneficial to realizing safe and efficient production of coal mines. 本发明提供了一种考虑顶煤抗压强度和放煤工序的提高顶煤回收率方法，充分考虑了顶煤抗压强度对顶煤回收率的影响，基于不同区域的顶煤抗压强度，设计合理有效的放煤工艺，可大大提高顶煤的回收率，具有工艺简单、可操作性强、成本低、效益高等优点，推广应用前景广泛，有利于实现煤矿的安全高效生产。