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A platform for research: civil engineering, architecture and urbanism
TREATMENT DEVICE AND TREATMENT METHOD FOR CEMENT KILN EXHAUST GAS
PROBLEM TO BE SOLVED: To efficiently recover mercury from a cement kiln exhaust gas at a low cost.SOLUTION: Provided is a cement kiln exhaust gas treatment device 1 comprising: a chlorine by-pass system including: an extraction apparatus 4 where, while cooling a part G1 of a combustion exhaust gas from a kiln exhaust gas flow passage from the kiln inlet of a cement kiln to the lowermost cyclone of a pre-heater, performing extraction; a classification machine 5 separating the extracted gas G3 by the extraction apparatus into coarse powder D1, fine powder D2 and a gas G4; a cooler 6 of cooling the exhaust gas in the classification machine; and a dust collector 7 recovering the fine powder D2 from the exhaust gas G5 of the cooler; and an addition apparatus 10 adding dust KD recovered from the cement kiln exhaust gas in the vicinity of an end on cement kiln side of the extraction apparatus in the chlorine by-pass system or between the extraction apparatus and an upstream side of the classification machine.SELECTED DRAWING: Figure 1
【課題】セメントキルン排ガスから低コストで効率よく水銀を回収する。【解決手段】セメントキルンの窯尻からプレヒータの最下段サイクロンに至るまでのキルン排ガス流路より燃焼排ガスの一部Ｇ１を冷却しながら抽気する抽気装置４と、抽気装置による抽気ガスＧ３を、粗粉Ｄ１と、微粉Ｄ２及びガスＧ４とに分離する分級機５と、分級機の排ガスを冷却する冷却器６と、冷却器の排ガスＧ５から微粉Ｄ２を回収する集塵機７とを備える塩素バイパスシステムと、塩素バイパスシステムの抽気装置のセメントキルン側端部の近傍、又は抽気装置から分級機の上流側までの間に、セメントキルン排ガスから回収したダストＫＤを添加する添加装置１０とを備えるセメントキルン排ガスの処理装置１。【選択図】図１
TREATMENT DEVICE AND TREATMENT METHOD FOR CEMENT KILN EXHAUST GAS
PROBLEM TO BE SOLVED: To efficiently recover mercury from a cement kiln exhaust gas at a low cost.SOLUTION: Provided is a cement kiln exhaust gas treatment device 1 comprising: a chlorine by-pass system including: an extraction apparatus 4 where, while cooling a part G1 of a combustion exhaust gas from a kiln exhaust gas flow passage from the kiln inlet of a cement kiln to the lowermost cyclone of a pre-heater, performing extraction; a classification machine 5 separating the extracted gas G3 by the extraction apparatus into coarse powder D1, fine powder D2 and a gas G4; a cooler 6 of cooling the exhaust gas in the classification machine; and a dust collector 7 recovering the fine powder D2 from the exhaust gas G5 of the cooler; and an addition apparatus 10 adding dust KD recovered from the cement kiln exhaust gas in the vicinity of an end on cement kiln side of the extraction apparatus in the chlorine by-pass system or between the extraction apparatus and an upstream side of the classification machine.SELECTED DRAWING: Figure 1
【課題】セメントキルン排ガスから低コストで効率よく水銀を回収する。【解決手段】セメントキルンの窯尻からプレヒータの最下段サイクロンに至るまでのキルン排ガス流路より燃焼排ガスの一部Ｇ１を冷却しながら抽気する抽気装置４と、抽気装置による抽気ガスＧ３を、粗粉Ｄ１と、微粉Ｄ２及びガスＧ４とに分離する分級機５と、分級機の排ガスを冷却する冷却器６と、冷却器の排ガスＧ５から微粉Ｄ２を回収する集塵機７とを備える塩素バイパスシステムと、塩素バイパスシステムの抽気装置のセメントキルン側端部の近傍、又は抽気装置から分級機の上流側までの間に、セメントキルン排ガスから回収したダストＫＤを添加する添加装置１０とを備えるセメントキルン排ガスの処理装置１。【選択図】図１
TREATMENT DEVICE AND TREATMENT METHOD FOR CEMENT KILN EXHAUST GAS
セメントキルン排ガスの処理装置及び処理方法
WADACHI HITOSHI (author) / HAYASHI KOTARO (author)
2017-06-01
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
B09B
DISPOSAL OF SOLID WASTE
,
Beseitigung von festem Abfall
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
TREATMENT DEVICE AND TREATMENT METHOD FOR CEMENT KILN EXHAUST GAS
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TREATMENT DEVICE AND TREATMENT METHOD FOR CEMENT KILN EXHAUST GAS
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