Proposal of Treatment for Hazardous Wastes Using the Highly Concentrated Radiation from Torch Plasma
Proposal of Treatment for Hazardous Wastes Using the Highly Concentrated Radiation from Torch Plasma
复制标题
利用火炬等离子体高浓度辐射处理危险废物的建议
DOI：
10.2355/isijinternational.40.275
复制
发表时间：
2000
影响因子：
1.8
通讯作者：
T. Inaba
中科院分区：
文献类型：
--
作者：
T. Iwao;H. Miyazaki;T. Ishida;Yafang Liu;T. Inaba
通常可以减少废物和溶解铁等的等离子炬具有非常有用的特性。它是一种稳定的、易于控制的弧光等离子体。考察了电流、气体流量、等离子体长度等参数的影响。本文测量了Ar等离子体炬的辐射功率。在表面等离子体长度为1.2 cm处，辐射功率与电流的1.8~1.9次方成正比。在4~20NI/min范围内，与气体流量的0.2~0.4次方成正比。然后，利用热电偶测量反射器采集到的辐射斑的温度。在等离子体长度为1 cm和2 cm处，它与电流的2.0-2.1次方成正比增加。此外，在环面模型中计算的总温度为16860K。提出了利用反射镜收集、透镜聚焦的高强度Ar炬等离子体处理危险废物的方法。并提出了利用等离子体炬对高温、辐射功率的危险废物进行等离子体处理。普通等离子炬温度高，辐射功率大。因此，当两者有效地结合在一起时，我们可以得到更多的好处：投入功率使用很少，危险废物用高温处理，废物中的危险气体用辐射功率处理。
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.