TREATMENT METHOD FOR DUST IN KILN EXHAUST GAS

摘要

PROBLEM TO BE SOLVED: To provide a treatment method for dust in kiln exhaust gas which alloys the coarse particle component of the dust in kiln exhaust gas to be used for a starting material for cement clinker when the starting material for cement clinker containing soot and dust, etc., is sintered in a kiln and does not cause an increase in the chlorine content in the cement clinker accompanying the use of the coarse particle component and a trouble in the operation of an apparatus.;SOLUTION: In the treatment method for the dust in kiln exhaust gas, the dust in the kiln exhaust gas which is produced by sintering the starting material for the cement clinker containing soot and dust and/or burnt ash in the kiln is treated. Therein, the treatment method for the dust in kiln exhaust gas comprises a dust collecting process of collecting the coarse particle component of the kiln exhaust gas with a cyclone dust collector, a washing process of washing the collected coarse particle component of the kiln exhaust gas, removing the chlorine component and obtaining a cake consisting of the coarse particle component and a return process of returning the cake to the kiln and feeding the same into the kiln as the starting material for the cement clinker.;COPYRIGHT: (C)2004,JPO