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Title:
HIGH SPEED CHEMICAL DEGREASING FURNACE
Document Type and Number:
Japanese Patent JP2602769
Kind Code:
B2
Abstract:

PURPOSE: To obtain a high speed chemical degreasing furnace in which a chemical decomposition method and exhaust gas treatment are established by installing a sensor which detects NOx concentration downstream from the exhaust gas treatment part of a gas treatment passage in a furnace and controlling the supply amount of a carbonization source on the basis of the signal of the sensor.
CONSTITUTION: A chemical degreasing furnace main body 2 is equipped with a non- oxidative gas introduction passage 21, a gas discharge passage 22, a degreasing agent supply passage 23, and a means for adjusting temperature in a furnace, and a molded material 7 of a kneaded material comprising fine particles which can be sintered and a binder having polyacetal resin as a main component is degreased. A supply part 3 of NOx gas or a liquid generating NOx is connected to a degreasing agent supply passage 23 through a valve 31 which can control a flow rate. An exhaust gas treatment part 43 which decomposes gas in the furnace generated during degreasing is installed in the gas discharge passage, and a carbon source supply passage 53 is connected with the treatment part 43 or its upstream part through a flow rate control valve 54. A NOx concentration detecting sensor 51 is installed downstream from the exhaust gas treatment part 43 of a passage 4 for treating gas in the furnace, and the valve 54 is actuated by the signal of the sensor.


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Inventors:
Akira Yotsuji
Yoshiya Taniguchi
Application Number:
JP12070293A
Publication Date:
April 23, 1997
Filing Date:
April 22, 1993
Export Citation:
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Assignee:
Toyo Machinery Metal Co., Ltd.
Koki Engineering Co., Ltd.
International Classes:
B01D53/86; B01D53/94; B22F3/10; C04B35/638; C04B35/64; C08J7/00; F27B17/00; (IPC1-7): B01D53/94; B01D53/86; B22F3/10; C04B35/638; C08J7/00; F27B17/00
Domestic Patent References:
JP61251581A
JP2501284A
JP4298236A
Attorney, Agent or Firm:
Yoshiaki Mori



 
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