Heze, August 29 - On August 18, New Dragon Company of Shandong Energy Xinwen Mining Group successfully completed the installation and operation of 2×75kW super large fan in order to support its shield machine tunneling system.
The total section of horizontal airway constructed by the shield tunneling machine 31.2 square meters, and the 55kW fan used before can no longer work sufficiently for dust exhaust, ventilation and heat dissipation. 2×75kW super large fan is generally used to supply wind for urban subway tunnel tunneling. This application is the first of its kind in Shandong in coal mine.
The full body fan is 5.45 meters long and 1.3 meters in diameter. Its unique blade structure design makes it 15dB quieter than the 55kW fan commonly used underground.