METHOD OF SETTING TEMPERATURE OF CONTINUOUS HEATING FURNACE AND METHOD OF CONTROLLING FURNACE TEMPERATURE

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United States of America Patent

APP PUB NO 20120256359A1
SERIAL NO

13440026

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A space from a charging hole to a discharge hole of a continuous heating furnace is divided into zones. A furnace temperature is assumed for each zone and a plurality of furnace temperature patterns are set. A metallization rate αOUT at the discharge hole is calculated for each furnace temperature pattern, using the time functions of the metallization rate α and the carbon content rate β of a raw material calculated in advance using a test. The necessary amount of heat applied to the continuous heating furnace is calculated for the furnace temperature patterns in which the calculated metallization rate αOUT is greater than or equal to a target value. The furnace temperature pattern which realizes the minimum necessary amount of heat applied is set as the optimal furnace temperature pattern. A fuel supplied to a burner is controlled based on the optimal furnace temperature pattern.

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Patent Owner(s)

Patent OwnerAddress
NITTETSU PLANT DESIGNING CORPORATION46-59 OSAZA-NAKABARU TOBATA-KU KITAKYUSHU-SHI FUKUOKA 804-0002
NIPPON STEEL ENGINEERING CO LTD5-1 OSAKI 1-CHOME SHINAGAWA-KU TOKYO 141-8604

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukuda, Yukihisa Kitakyushu-shi, JP 1 0
Oishi, Takuya Kitakyushu-shi, JP 5 9
TAMARU, Koji Kitakyushu-shi, JP 6 15

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