Do you know these 5 aspects that affect the lining of the intermediate frequency furnace?

Among the intermediate frequency furnace equipment, the intermediate frequency furnace lining is very important. There are three kinds of intermediate frequency furnace lining materials, one is acid furnace lining, which is formed by dry ramming of quartz sand, and the binder is borax or boric acid; the other is dry magnesia sand. Type ramming molding, the same binder is borax or boric acid. One is a neutral furnace lining, which is rammed and molded from high-alumina bauxite clinker. There are also many new lining materials in the material. So, what are the aspects that affect the lining of the intermediate frequency furnace? Let's take a look at it together.

1. Loading principle: First of all, it is necessary to determine the reasonable loading volume of the converter, suitable molten iron and scrap ratio. However, when determining the loading volume of the converter, in addition to the appropriate furnace capacity ratio, it is also necessary to consider ensuring the appropriate molten pool. This is done to protect the bottom of the tube furnace from the impact of the oxygen jet, and the depth of the molten pool must exceed the penetration depth of the oxygen flow to the molten pool.

2. Oxygen supply principle: It is necessary to determine the scientific and reasonable oxygen supply principle to ensure the removal of impurities, the temperature of the molten pool and the speed of slag formation, which have an impact on the enhanced smelting of the converter and the service life of the furnace lining.

3. Temperature principle: On the premise that the molten steel casting is satisfied, the lower the temperature control in the steelmaking process and the lower the end temperature, the better the service life of the furnace lining.

4. Furnace volume ratio: If the furnace volume ratio is too large, the cost of steelmaking will increase, while if the furnace volume ratio is too small, splashing will occur, and then the service life of the furnace lining will be reduced. Therefore, a reasonable intermediate frequency furnace furnace volume ratio should be planned. is very important.

5. Quality of raw materials: When making steel with intermediate frequency furnace equipment, the quality of raw materials used has a great influence on prolonging the life of the furnace lining.