Gas Injection Control System For Blast Furnace, And Control Method
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United States of America Patent
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Issued Date -
Mar 27, 2025
app pub date -
Dec 13, 2022
filing date -
Dec 13, 2022
priority date (Note) -
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Abstract
The present disclosure discloses a system and a method for controlling gas injection in blast furnace. The system for controlling gas injection in blast furnace includes a coke oven gas pipeline, a decarbonized gas pipeline, a protection nitrogen pipeline, and a main gas pipeline. The coke oven gas pipeline and the decarbonized gas pipeline are connected with the main gas pipeline, and distributing branch pipelines of main gas pipeline are located at nozzles of tuyeres of blast furnace. The protection nitrogen pipeline is connected to the main gas pipeline. A group of measuring components are used for each of the pipelines to detect operation status thereof. The system controls operation status of the pipelines by controlling pipelines with valves. The system and method may ensure that the system for injecting coke oven gas through tuyeres can stop running safely in abnormal situations.
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