| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for recovering lead in a cement kiln to obtain a clinker having a low content of lead when an auxiliary raw material containing lead for production of clinker is used. <P>SOLUTION: After a clinker raw material containing lead (for example, using fly ash as an auxiliary raw material), a solid fuel to generate reduction volatilization A (for example, coke) and a chloride to generate chlorination volatilization B (for example, calcium chloride) are charged in a cement kiln 1 having a gas extraction probe 3 on the kiln tail 1b, lead volatilized from the clinker raw material is recovered by the gas extraction probe 3. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
