Abstract: Tungsten concentrate microwave drying equipment is an important process in the processing of tungsten ore. The steam oven drying process originally used in the persimmon garden multi-metal plant has problems such as long drying time, uneven drying of tungsten concentrate, high energy consumption, low efficiency, serious environmental pollution, and high labor intensity. The key technical parameters of microwave drying black tungsten concentrate were optimized by the combination of simulation and test methods.
The industrial test results show that under the condition of optimizing the process parameters, the relative dehydration rate of the black tungsten concentrate reaches over 90%, which can meet the industrial production requirements. Compared with the original black tungsten concentrate steam drying system, the drying efficiency is improved by 50%, the product dryness is increased by 60%, the heat energy utilization rate is increased by 50%, and the production automation is high.
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