Aiming at the problems of artificial sampling and sample preparation, low ash efficiency and heavy workload in Shui yu Coal preparation Plant, a γ natural ray on-line ash measuring instrument was installed in the clean coal belt. After testing, the content of natural radionuclide in Shuiyu coking coal is in the middle upper level, there is a significant positive correlation between natural radioactivity and ash content, the determination error fluctuation range of the passive ash meter is -0.26%~+0.17%, thereby meeting the accuracy requirements.Meanwhile,the advantages and problems of the passive ash separator were summarized and analyzed.
刘少伟. 天然射线灰分仪在炼焦精煤灰分检测中的应用[J]. 煤炭与化工, 2020, 43(10): 147-150.
Liu Shaowei. Application of natural X-ray ash meter in detection of coking coal. CCI, 2020, 43(10): 147-150.