Title:
EXHAUST GAS PROCESSING DEVICE AND EXHAUST GAS PROCESSING METHOD
Document Type and Number:
Japanese Patent JP2019155260
Kind Code:
A
Abstract:
To provide an exhaust gas processing device and an exhaust gas processing method which perform adsorption/removal processing under adequate supply amounts of active charcoal so that a mercury concentration in exhaust gas is below a set value, even if an oxygen concentration and a hydrogen chloride concentration in the exhaust gas containing mercury vary.SOLUTION: The exhaust gas processing device comprises: a dust collector 3 that performs processing for removing exhaust gas from a furnace 1; an active charcoal supply device 5 that blows active charcoal to an exhaust gas flow path A through which exhaust gas is introduced from the furnace to the dust collector; an oxygen concentration meter 7 that measures an oxygen concentration in the exhaust gas and a hydrogen chloride concentration meter 8 that measure a hydrogen chloride concentration in the exhaust gas, at a downstream side of the furnace 1 and at an upstream side of the dust collector 3; and a control device 6 that controls supply amounts of active charcoal of the active carbon supply device. The control device 6 controls the supply amounts of active carbon on the basis of a predetermined correspondence relation between the measured value of the oxygen concentration, the measured value of the hydrogen chloride concentration and the supply amounts of active carbon so that a mercury concentration in the exhaust gas at the downstream side of the dust collector 3 is below a set value on the basis of the measured value of the oxygen concentration by the oxygen concentration meter 7 and the measured value of the hydrogen chloride concentration by the hydrogen chloride concentration meter 8.SELECTED DRAWING: Figure 1
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Inventors:
NAGAO ATSUSHI
HIRAYAMA ATSUSHI
MIURA TAKASHI
USUI YUTO
HIRAYAMA ATSUSHI
MIURA TAKASHI
USUI YUTO
Application Number:
JP2018044556A
Publication Date:
September 19, 2019
Filing Date:
March 12, 2018
Export Citation:
Assignee:
JFE ENG CORP
International Classes:
B01D53/64; B01D53/83; F27D17/00; F27D19/00; F27D21/00
Domestic Patent References:
| JP2017094319A | 2017-06-01 | |||
| JP2012213744A | 2012-11-08 |
Attorney, Agent or Firm:
Toru Fujioka
Fujioka Tsutomu
Fujioka Tsutomu