Constant-temperature heating device for fire assaying method gold separation

• Main Authors: MU XIUMEI, LUO CAIPING, HAN YUNSHAN, LIU BO, ZHENG WENYING, ZHANG JIAN, WANG CHUANFEI, YUN APENG, LI RUILING
• Format: Patent
• Language: Chinese; English
• Published: 25.01.2022
• Subjects: CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE; MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR; TRANSPORTING

The invention relates to a constant-temperature heating device for fire assaying method gold separation. The device comprises a water bath groove and a heater for heating the water bath groove, wherein a gold separation crucible limiter is arranged in the water bath groove, and comprises a limiter body, a plurality of limiting holes used for bearing gold separation crucibles are formed in the limiter body, the aperture of each limiting hole is larger than 1/3 of the diameter of the opening of the gold separation crucible and smaller than 1/2 of the diameter of the opening of the gold separation crucible, and the aperture of each limiting hole is greater than the diameter of the bottom of the gold separation crucible. According to the invention, the gold separation crucible is placed in the water bath groove to be heated so as to uniformly heat nitric acid in the gold separation crucible, and by arranging the gold separation crucible limiterin the water bath groove, the gold separation crucible is placed in th