Analysis of the causes of skin formation at the inlet of the C5 cyclone on the production line
During the operation of a production line,the crust in the 5-stage cylinder is serious,and most of it is accumulated at the en-trance of the 5-stage cylinder,and with the downward distribution of the flue gas cyclone,there are both hard crust and crisp crust in the crust material,and the color is white and gray.The main reasons for the formation of crust are as follows:(1)the alkali content in the primary combustion material is high;(2)The combustion of pulverized coal in the decomposition furnace of the line is incomplete,there is aftercombustion,and the temperature of the 5-stage cylinder is inverted;(3)In the system,the alkali content and chlorine con-tent are excessive,and more molten substances are formed,mainly KCl,K2SO4 and CaSO4,and the KCl content is more than 10％,which greatly reduces the initial liquid phase precipitation temperature of the molten substances,and crusting appears from the 4th stage cylinder.
cyclone resistancecrustmolten materialliquid phase initial precipitation temperature
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