Research on the technical transformation of bypass ventilation after collaborative disposal of solid waste in cement kilns
Jiangshan Hejiashan Cement Co.,Ltd.'s clinker production line collaboratively disposes of washed fly ash and uses waste spinning as an alternative fuel.Due to the high Cl-content in washed fly ash and alternative fuel,a bypass ventilation system is in-stalled at the kiln tail.However,the original two-stage cyclone dust collector and chlorine containing dust in the flue gas cannot be dis-charged,and ultimately enters the clinker through chlorine circulation,resulting in a high Cl-content in the cement.This article intro-duces the technical renovation measures of the bypass ventilation system.Through the renovation of the bypass ventilation intake and two-stage cyclone dust collector,the separation efficiency of the cyclone dust collector is improved,and the dust with high Cl-content collected by the second stage cyclone dust collector is reintroduced into the fly ash washing system,thereby reducing the Cl-content in the clinker.
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