| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a novel method and apparatus for effectively decreasing the content of heavy metals, particularly, volatile heavy metals such as mercury and zinc contained in an exhaust gas from a cement production facility. <P>SOLUTION: The method and apparatus for decreasing heavy metals in an exhaust gas from a cement production facility involves, for example, as shown in Fig.2, exhausting a combustion exhaust gas generated in a rotary kiln for firing a cement raw material to the outside through a pre-heater, a cement raw material pulverizing apparatus, a dust collector and a dust separating filter apparatus when the cement raw material pulverizing apparatus is under operation, or introducing the combustion exhaust gas to a heavy metal removing apparatus through the pre-heater and the dust separating filter apparatus to remove heavy metals, and thereafter exhausting the combustion exhaust gas to the outside when the cement raw material pulverizing apparatus is under stoppage. <P>COPYRIGHT: (C)2012,JPO&INPIT |
