Development of the quick decomposition technology of the sprayed-on asbestos by the electromagnetic wave heating method

1.用电磁波加热法快速分解水泥、氯化钙和石棉混合物中的石棉。样品的温度不能直接测量，但用光学高温计测量，通过微波炉上部的坩埚损失，显示出约1300摄氏度的温度。结合氯化钙的加入量，观察灼烧样品中石棉纤维的有无。将烧焦的样品粉碎后，在pH 5的ACETA缓冲溶液中进行洗涤。洗涤液用孔径为0.2wt m的曼布然滤器过滤，并对残渣进行显微镜观察。在氯化钙加入量为5wt%的情况下，没有观察到纤维，而在氯化钙加入量为12.…的情况下，观察了10个点，未进行玻璃化处理，观察到六纤维物的形态超过5wt%。测温很困难，所以加热时会产生气态物质。由此推测，当样品不发生熔融时，氯化钙和水泥的挥发物蒸发，蒸发潜热被剥夺。喷洒石棉的快速分解对于喷洒石棉或石板的快速分解，对切割石板时发生的切割玻璃作为样本进行了检查。石棉以棉花的形式分散在样品中，以块的形式分散，并与水泥共存。当该石板切割玻璃中加入0.5wt%的氯化钙时，可得到玻璃化产物。此外，通过10个视野的观察，在醋酸溶解废渣中没有检测到纤维。由于处理时间短，电磁波加热法被认为具有广阔的技术前景。但由于是很小规模的试验结果，对大型设施的计算比较困难。较少

1. Asbestos in the cement, calcium chloride and asbestos mixture were decomposed quickly by the electromagnetic wave heating methodThe temperature of the sample was not able to measure directly, but it was measured with an optical pyrometer by the loss of the crucible for a microwave oven upper part, and about 1, 300 degrees Celsius were shown in the temperature. In coordination with quantity of addition of the calcium chloride, yes or no of the asbestos origin fiber of burnt samples was observed. The burnt sample was washed in the pH 5 aceta which coordinated in buffer solution after it was crushed. Furthermore, the washed fluid was filtered by the men buran filter of the 0.2μm aperture diameter, and the microscopy of dregs was performed.The fiber was not observed in the case of 5wt% quantity of calcium chloride addition, but form of six fiber thing was observed during ten places of observation without it being done vitrifaction in the case of quantity of calcium chloride addition 12. … More 5wt%. Thermometry was difficult so that a gaseous thing grew at the time of heating. From this, it is supposed so that calcium chloride and the volatile of cement evaporate, and the evaporation latent heat is robbed of it when the fusion of the sample was not generated.2. The quick decomposition of sprayed-on asbestosFor the quick decomposition such as sprayed-on asbestos or the slate, the cut glass which occurred at the time of cutting of the slate as a sample was examined. Asbestos disperses with form of cotton, form of lump in a sample, and they coexist with cement. When 0.5wt% added calcium chloride in this slate cut glass, a vitreosity product was provided. Furthermore, fiber was not detected in the acetic acid dissolution dregs by the observation of the 10 field of vision. The electromagnetic wave heating method is thought with prospective technology because processing time is short. But because it is the test result of the very small scale, the calculation for large sized facilities is difficult. Less