INSTRUMENT FOR DETECTING BROKEN HOLE IN COKE OVEN AND PROCESS FOR PRODUCING COKE

Japanese Patent JP3917930

B2

PROBLEM TO BE SOLVED: To provide an instrument for detecting a broken hole, capable of detecting a broken hole in oven wall bricks of a coke oven carbonization chamber, and to provide a process for producing coke, which uses the instrument.
SOLUTION: The instrument for detecting a broken hole in a coke oven is provided with a light beam-irradiating device 2, an oven wall light-detecting device 3, and a broken hole-judging device 4. A light beam 7 is irradiated on the wall surface 15 of a coke oven carbonization chamber by the irradiation device 2, and the optical information from the oven wall surface, containing the reflected light 8 of the irradiated light beam 7 is detected by the detection device 3. The judgment device 4 judges the presence of a broken hole 14 in the wall surface based on the state of the reflected light 8 in the optical information detected. The irradiation device 2 is a laser beam irradiation device irradiating a light with a wavelength of 550 nm or less. The detection device 3 specifically detects an optical element with a wavelength of 550 nm or less.

JP5874662	Exhaust gas treatment equipment and exhaust gas treatment method
JPS6024833	[Title of the Invention] A recovery method of coke-oven gas waste heat

Hide Egawa
Masahiko Yokomizo
Michitaka Sakaida
Masato Sugiura

JP2002338982A

May 23, 2007

November 22, 2002

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Nippon Steel Corporation

C10B45/00; G01B11/30; C10B29/06; C10B33/10; C10B41/00; G01N21/954; (IPC1-7): C10B29/06; C10B33/10; C10B41/00; G01B11/30; G01N21/954

JP4054208Y2
JP7198348A
JP2002213922A
JP11106755A

Shunta Naito
Hisataka Tanaka

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