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武钢大冶铁矿位于亚热带地区,东露天采场已进入凹陷开采,夏季采场气温超过40℃,黑球温度波动在39～52℃,七、八月采场辐射热为0.7～0.8卡/厘米~2。采场平均温度梯度为0.013度/米,大于大气的干绝热梯度。电铲在夏季作业时,机械室温度可达45℃,司机室在开动60瓦台扇和0.6千瓦轴流风机的情况下,温度仍达39～43℃。司机被迫开窗作业,室内粉尘浓度经常高于卫生标准,矽尘危害严重。因此,不仅影响装车
The iron ore from Daye Iron and Steel Company of WISCO is located in the subtropical region. The open pit of the east open pit has entered the sag mining. The temperature of the stope in summer exceeds 40 ℃, the temperature of the black ball fluctuates in 39 ~ 52 ℃, and the radiant heat of stope in July and August is 0.7-0.8 cal / Cm ~ 2. Storages the average temperature gradient of 0.013 degrees / m, greater than the dry adiabatic gradient of the atmosphere. Shovel operation in summer, the mechanical room temperature up to 45 ℃, the driver’s room in the start 60-watt fan and 0.6 kW axial fan case, the temperature is still up to 39 ~ 43 ℃. The driver was forced to open the window, indoor dust concentration is often higher than the health standards, serious harm of silica dust. Therefore, not only affect the loading