en.Wedoany.com Reported - On April 21, a large-scale tunnel continuous belt conveyor independently developed by China Railway Construction Heavy Industry Corporation (CRCHI) completed installation and commissioning in Changsha, Hunan, China, and is about to be shipped for delivery. This marks the first time a domestically produced continuous belt conveyor from China has entered the Spanish market.
The continuous belt conveyor exported this time has a total length of 4,500 meters, comprising 7 belt conveyors of various types. Serving as the mucking equipment for the tunnel boring machine (TBM), it will be used in the expansion project of Barcelona Metro Line 8 in Spain. Located between Plaça d'Espanya and Gràcia station, the tunnel is approximately 4 kilometers long and is excavated in conjunction with a 10.6-meter diameter earth pressure balance shield machine. This project is a crucial public utility for the local population. Situated in the city's core area, with dense surrounding buildings and heavy pedestrian and vehicle traffic, local European standards impose strict requirements on construction noise reduction, dust control, site utilization, and operational efficiency.
CRCHI's research and development team completed the customized development in 8 months. The system integrates functions such as continuous mucking, intelligent control, environmental noise reduction, and safety protection, precisely adapting to the needs of tunneling construction in densely populated urban areas. The equipment incorporates three industry-first technologies: A silent, fully enclosed gantry outside the tunnel limits operational noise to below 60 decibels, achieving integrated dust prevention and noise reduction; an innovatively designed side-mounted horizontal belt storage carriage improves space utilization by 40% and increases mucking efficiency by 25%, ensuring 24-hour continuous operation of the TBM; a specially designed 180° rotating distribution belt conveyor has a discharge coverage radius of 30 meters, and, combined with an intelligent monitoring system, enables automated and efficient mucking.
The core technologies of this equipment are fully independently controllable, with a localization rate of over 95% for key components. This project represents another venture for CRCHI's tunnel continuous belt conveyors in Europe, following the Italian market.
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