Abstract: Nuclear Power Institute of China had manufactured the far infrared evaporation device for treatment of liquid radioactive waste. The far infrared evaporation technology had never been used for treatment of liquid radioactive waste in China. The purification coefficient of far infrared evaporation technology is higher than the other technologies, and the device is physically suitable for treatment of low quantity, chemically complex liquid radioactive waste. The far infrared evaporation device is made of transport vehicle、thermal container、liquid radioactive waste processing unit、control system and external pipes. The processing capacity is 24 L/h, the maximum salt content is 300 g/L. The result of debugging shows that the designing of device is safe and reliable,the structure of device is reasonable, performance is stable, so that meets the designing requirements.

Key words: mobile device, far infrared evaporation, treatment, liquid radioactive waste, equipment design