Method for measuring slag amount of converter
A converter and slag volume technology, applied in the manufacture of converters, etc., can solve problems such as inaccurate calculation results, large slag layer thickness errors, and inaccurate slag content, etc., to improve slag blocking devices and tapping operations, and reduce slag discharge Quantity, the effect of reducing production costs
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Embodiment 1
[0019] A method for measuring the amount of slag in a converter, comprising the steps of:
[0020] 1) Choose ordinary carbon steel, and pre-embed 100kg of tracer cerium oxide at the bottom of the ladle before tapping out of the 150-ton converter;
[0021] 2) When tapping the converter, add slagging agent (lime and some auxiliary materials), and record the total amount of slagging agent added as 0.81 tons;
[0022] 3) Blow argon for 7 minutes at the argon station, and control the blowing flow rate to make the ladle slag uniform;
[0023] 4) The ladle is heated in the LF furnace for 15 minutes, and the slag must be as uniform as possible;
[0024] 5) When the LF furnace left the station, 4 slag samples were taken at different positions, and the contents of the tracer cerium oxide in the slag samples were analyzed, which were respectively: 3.43%, 2.52%, 3.61%, and 3.15%. According to the analysis results, select the most The three sets of close data (3.43%, 3.61%, 3.15%), the a...
Embodiment 2
[0027] Example 2, the difference from Example 1 is: in step 3), argon was blown at the argon station for 5 minutes. In step 4), the ladle was heated in the LF furnace for 11 minutes.
Embodiment 3
[0028] Example 3, the difference from Example 1 is: in step 3), argon was blown at the argon station for 9 minutes. In step 4), the ladle was heated in the LF furnace for 17 minutes.
[0029] The reason why the present invention selects ordinary carbon steel is that the smelting process of this type of steel is relatively simple, and little or no lime or auxiliary materials are added during LF refining, which has little influence on the amount of slag, and the result is more accurate. The present invention adds tracer according to the size of the converter. This is because too much tracer will bring smelting burden, and even change the composition and performance of slag. 100Kg tracer is appropriate, such as 200Kg converter, 300Kg converter can add 150Kg-200Kg tracer respectively. Of course, if the tracer is replaced, such as replacing cerium oxide with barium oxide, lanthanum oxide, etc., the same tracer effect can also be achieved.
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