A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD AND PROCESSOR FOR PROCESSING CEMENT KILN EXHAUST GAS
PROBLEM TO BE SOLVED: To recover Hg in cement kiln exhaust gas at a low cost.SOLUTION: A processor for cement kiln exhaust gas comprising: an addition device 4 which adds a mercury adsorption material A to cement kiln exhaust gas; a dust collector 5 which collects dusts from exhaust gas G2 to which the mercury adsorption material A is added; and a classification device 6 which classifies dusts D1 which are obtained by collection, and separates the dusts into coarse powders C1 having a high mercury concentration and coarse powders F having a low mercury concentration. The processor may comprise a mercury recovery device 7 which can recover Hg from the coarse powders C1 which are classified and obtained. A classification point in said classification can be so made as to be not less than 10 μm and not more than 20 μm, and an addition amount of the mercury adsorption material A can be adjusted according to at least one of a mercury concentration of the cement kiln exhaust gas, a concentration of the mercury adsorption material in the dusts D1 which are obtained by collection, and an addition position of the mercury adsorption material.SELECTED DRAWING: Figure 1
【課題】低コストでセメントキルン排ガス中の水銀を回収する。【解決手段】セメントキルン排ガスに水銀吸着材Ａを添加する添加装置４と、水銀吸着材Ａが添加された排ガスＧ２から集塵する集塵装置５と、集塵して得られたダストＤ１を分級して水銀濃度が高い粗粉Ｃ１と、水銀濃度が低い微粉Ｆとに分離する分級装置６とを備えるセメントキルン排ガスの処理装置１。分級して得られた粗粉Ｃ１から水銀を回収する水銀回収装置７を備えることができる。上記分級における分級点を１０μｍ以上２０μｍ以下とすることができ、水銀吸着材Ａの添加量を、セメントキルン排ガスの水銀濃度、集塵して得られたダストＤ１中の水銀吸着材濃度、及び水銀吸着材の添加位置のうち少なくとも一つに応じて調整することができる。【選択図】図１
METHOD AND PROCESSOR FOR PROCESSING CEMENT KILN EXHAUST GAS
PROBLEM TO BE SOLVED: To recover Hg in cement kiln exhaust gas at a low cost.SOLUTION: A processor for cement kiln exhaust gas comprising: an addition device 4 which adds a mercury adsorption material A to cement kiln exhaust gas; a dust collector 5 which collects dusts from exhaust gas G2 to which the mercury adsorption material A is added; and a classification device 6 which classifies dusts D1 which are obtained by collection, and separates the dusts into coarse powders C1 having a high mercury concentration and coarse powders F having a low mercury concentration. The processor may comprise a mercury recovery device 7 which can recover Hg from the coarse powders C1 which are classified and obtained. A classification point in said classification can be so made as to be not less than 10 μm and not more than 20 μm, and an addition amount of the mercury adsorption material A can be adjusted according to at least one of a mercury concentration of the cement kiln exhaust gas, a concentration of the mercury adsorption material in the dusts D1 which are obtained by collection, and an addition position of the mercury adsorption material.SELECTED DRAWING: Figure 1
【課題】低コストでセメントキルン排ガス中の水銀を回収する。【解決手段】セメントキルン排ガスに水銀吸着材Ａを添加する添加装置４と、水銀吸着材Ａが添加された排ガスＧ２から集塵する集塵装置５と、集塵して得られたダストＤ１を分級して水銀濃度が高い粗粉Ｃ１と、水銀濃度が低い微粉Ｆとに分離する分級装置６とを備えるセメントキルン排ガスの処理装置１。分級して得られた粗粉Ｃ１から水銀を回収する水銀回収装置７を備えることができる。上記分級における分級点を１０μｍ以上２０μｍ以下とすることができ、水銀吸着材Ａの添加量を、セメントキルン排ガスの水銀濃度、集塵して得られたダストＤ１中の水銀吸着材濃度、及び水銀吸着材の添加位置のうち少なくとも一つに応じて調整することができる。【選択図】図１
METHOD AND PROCESSOR FOR PROCESSING CEMENT KILN EXHAUST GAS
セメントキルン排ガスの処理方法及び処理装置
WADACHI HITOSHI (author)
2017-02-09
Patent
Electronic Resource
Japanese
PROCESSOR AND METHOD FOR PROCESSING CEMENT KILN EXHAUST GAS
| European Patent Office | 2017