Optimization of the process of the drying workshop at Juli Coal Preparation Plant

Anthracite coal is used as fuel for the coal drying workshop of the plant. In order to tackle the existing problems,several testing schemes are proposed for finding a guidance for optimal process commissioning and determining the technical parameters like calorific value and size range of fuel coal required for maintaining the normal operation of the drying workshop. Through comparative test and analysis,the optimal scheme is determined. It is found that when the fuel coal has a content of the + 13 mm size of 60. 41%,a calorific value of 19. 96 MJ/ng and moisture of 8. 15%,the chain furnace can maintain a stable temperature as required,and in this case,the dryer’s inlet temperature is well up to the required level.