The high-risk nature of mine operations drives the continuous upgrading of safety equipment. New safety devices include:
Gas concentration linkage system: When the underground gas exceeds the limit, the power supply is automatically cut off and the ventilation is started, the response time is less than 0.5 seconds.
Support robot: Xugong developed the bolt support robot, support speed of up to 4 / min, personnel do not need to enter the unsupported area.
Dry dust removal equipment: the bag dust collector is used in the crushing process, the dust collection efficiency is over 99%, and the PM2.5 emission is less than 10mg/m³.
In terms of environmental protection technology, electric mining equipment has become rapidly popular. The Volvo EC230 Electric excavator can work for eight hours on a one-hour charge, reducing noise by 50% and reducing carbon emissions to zero. After the introduction of an all-electric transport fleet, the South African gold Mine reduced diesel consumption by 80%, reducing carbon dioxide emissions by 120,000 tons per year.