Abstract
The plasma torch that can usually reduce the waste and dissolve the iron and so on has very useful characteristics. It is a kind of the stabilized arc plasma that can be easily controlled. It has been examined considering the influences or various parameters, such as the current, the gas flow-rate and the plasma length. In this paper, we measured the radiation power emitted from the Ar plasma torch. The radiation power increased in proportion to the 1.8-1.9th power of the current at 1, 2 cm of appearance plasma length. And it increased in proportion to the 0.2-0.4th power of the gas-flow rate between 4-20 NI/min. Then, we measured the temperature of the radiation spot collected by reflectors using the thermocouple. It increased in proportion to the 2.0-2.1th power of the current at 1 cm and 2 cm in the plasma length. Moreover, the total temperature is calculated as 16 860 K in a torus model. We proposed the treatment for the hazardous wastes using the highly intense radiation of Ar torch plasma collected by reflectors and concentrated by the lens. And, we proposed the plasma treatment of the high temperature and radiation power for the hazardous wastes by using the plasma torch. The plasma torch ordinary has the high temperature and plenty of radiation power. Therefore, when both of the characteristics are combined usefully, we can get the many more benefits; the in-put power is used little, hazardous wastes are treated by the high temperature and hazardous gas from the wastes is treated by the radiation power.
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