【摘要】 利用地温预热入风流技术 ,设计了金厂沟梁金矿冬季防冻通风系统。系统运行后 ,各提升井内温度均达 + 2℃以上 ,防止了提升井结冰 ,保证了安全生产。更多还原

【Abstract】 An antifreezing ventilation system at winter in a gold mine is designed by use of the earth temperature preheating technology. After the system was operated, the temperature at every hoisting shaft is to above +2℃, the hoisting shaft is antifreezed and the safety in production is ensured.更多还原