en.Wedoany.com Reported - Recently, the "Jining" full-face open-type hard rock tunneling system for coal mines, independently developed and manufactured by CCTEG Shanghai Research Institute, successfully rolled off the production line. This system is an EQC4530 open-type TBM, developed to address bottleneck problems in coal mine roadway excavation. It possesses technical advantages under complex geological conditions such as multiple roadways, small turning radii, and difficult-to-control strata, filling a gap in the field of intelligent and rapid excavation equipment for coal mine rock roadways.
The hard rock tunneling system integrates multiple functions in its design, featuring capabilities such as small turning radius excavation, uphill and downhill operations, a modular short body, parallel and efficient operation of multiple drilling rigs for excavation and support, and precise detection of gas and groundwater. This allows it to adapt to variable coal mine geological conditions. Through the optimization of the overall machine structure and operational workflow, the system can achieve safe, efficient, intelligent, and green excavation operations in coal mine rock roadways, increasing the existing rock roadway excavation speed from a monthly advance of 100 meters to over 300 to 500 meters, significantly enhancing roadway formation efficiency and construction safety. Under actual working conditions, the equipment can meet roadway turning requirements while ensuring host machine safety, adapting to complex excavation paths through various construction schemes such as adjusting cutterhead rotation speed and modifying the pressure of the turning side support shoes.
The successful rollout of this hard rock tunneling system provides new equipment support for coal mine rock roadway projects in China. CCTEG Shanghai Research Institute stated that in the future, it will continue to promote the iterative upgrading of this equipment, carry out further technical research in the field of coal mine rock roadway excavation equipment, and provide more adaptable core equipment support for the coal mining industry.
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