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Journal of Mining Sciences

2018 year, number 2

Parameter Optimization of the Gamma Albedo Method to Control Quality of Coal of Variable Composition

YU. N. PAK, D. YU. PAK
Karaganda State Technical University, Ministry of Education and Science, Republic of Kazakhstan, Karaganda, 100027 Republic of Kazakhstan
Keywords: контроль зольности, гамма-альбедный метод, интегральная интенсивность вторичного излучения, оптимизация толщины фильтра, ash content control, gamma albedo method, integral intensity of secondary radiation, filter thickness optimization

Abstract

The variant of the gamma albedo method is proposed for the radioisotope express control of coal ash content, which ensures the satisfactory accuracy in the conditions of variable elementary composition of coal. It is shown that the integral intensity of secondary (scattered and fluorescent) radiation weakened using a certain thickness filter is a univocal index of coal ash content. The analytical model for the optimization of the secondary radiation filtration parameters is developed. The utility value of the weakening filter is determined as function of ash content and composition of coal.