Converter oxygen lance blowing control method based on dry dedusting process
A converter oxygen lance and dry dedusting technology, which is applied in the manufacture of converters, etc., can solve the problems that the dry dedusting converter blowing control technology has not yet been reported.
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[0018] The classic converter blowing control process is based on the preset valve position of the oxygen regulator valve directly into the valve regulator PI to automatically adjust. The result of this control is that the O 2 Too late to be oxidized by molten iron (Fe 3 O 4 =2O 2 +3Fe) cause O in the flue gas 2 The content is larger. This has no major impact on traditional wet dust removal. However, for the dry dust removal process with electrostatic precipitator, high O 2 The concentration of flue gas passing through the electrostatic precipitator will cause the risk of explosion venting accidents, making steelmaking impossible. After the initial stage of converting, the amount of oxygen blowing in the steelmaking furnace reaches the set value, the oxidation-reduction reaction in the furnace tends to be stable, and O in the flue gas 2 The content decreases and maintains a certain value, which has no effect on the electrostatic precipitator.
[0019] According to the existing t...
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