Treatment method for slag adjustment before slag splashing protection of converters
A treatment method and slag adjustment technology, which is applied in the field of iron and steel metallurgy, can solve the problems of poor high temperature resistance of the slag splash layer, poor slag corrosion performance, poor slag hanging effect, and high slag temperature, so as to improve production efficiency and protect the furnace by slag splashing , Improving the life of the slag layer and the effect of increasing the furnace life
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Embodiment 1
[0028] Implement the operating steps of the present invention as follows:
[0029] (1) At the end of converter blowing, the converter was shaken to the side where the slag was poured, and the sampling analysis showed that the iron oxide in the slag was 30%;
[0030] (2) Tapping at 1700°C, the tapping operation is carried out by leaving slag but not steel, and the amount of slag left is controlled at 6% of the volume capacity of the converter, and the amount of slag is about 600Kg according to calculation;
[0031] (3) After the steel is tapped, shake the converter upright and add a slag adjusting agent for protecting the furnace by splashing slag into the furnace. The slag adjusting agent is: 40Kg of coke powder, 60Kg of magnesia, and 20Kg of titanium dioxide. After subsequent analysis, it is known that the slag adjusting agent The composition of the slag is: MgO15%, iron oxide 7.7%, titanium compound 3.5%;
[0032] (4) After adding the slag adjusting agent, use an oxygen lan...
Embodiment 2
[0035] Implement the operating steps of the present invention as follows:
[0036] (1) At the end of converter blowing, the converter was shaken to the side where the slag was poured, and the sampling analysis showed that the iron oxide in the slag was 25%;
[0037] (2) The steel is tapped at 1720°C, and the steel tapping is operated by leaving slag but not steel, and the amount of slag left is controlled at 8% of the volume capacity of the converter, and the amount of slag is about 800Kg according to calculation;
[0038](3) After the steel is tapped, shake the converter upright and add a slag adjusting agent for protecting the furnace by splashing slag into the furnace. The slag adjusting agent is: 30Kg of coke powder, 70Kg of magnesia, and 25Kg of titanium dioxide. After subsequent analysis, it is known that the slag adjusting agent The composition of the slag is: MgO10%, iron oxide 6.1%, titanium compound 3.0%;
[0039] (4) After adding the slag adjusting agent, use an ox...
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