Adding steps of carburizer in smelting furnace

The steps for adding a carburant in a smelting furnace typically include the following stages:

1. Determine the Timing of Addition: During the steel smelting process, due to long smelting, holding, and superheating times, the melting loss of carbon in the molten iron may increase, leading to a reduction in carbon content. Therefore, it is necessary to determine when to add the carburant based on the specific circumstances of the smelting.

2. Select the Appropriate Location: The carburant should be added to the lower part of the electric furnace, which helps to improve the recovery rate of the carburant, generally reaching more than 95%.

3. Calculate the Amount of Addition: Calculate the required amount of carburant based on the mixing ratio or carbon equivalent requirement to ensure the desired carbon level is achieved.

4. Perform the Addition: Add the calculated amount of carburant into the smelting furnace. If used in medium-frequency induction furnace smelting, it can be added along with the charge materials.

5. Stir Evenly: After adding the carburant, stir the contents of the smelting furnace to ensure even distribution of the carburant and enhance the carburizing effect.

6. Testing and Adjustment: After adding the carburant, confirm whether the carbon content of the molten iron meets the requirements through testing methods. If insufficient, further adjustment may be needed.

7. Recording and Analysis: Record the usage and effectiveness of the carburant for subsequent process analysis and optimization.

8. Safety Operations: Throughout the entire addition process, operators must strictly adhere to safety procedures to ensure production safety.

In general, there are methods such as in-furnace addition and external addition for using carburants, and the specific steps may vary depending on the equipment and process. In actual operation, the most suitable method of addition should be determined based on the particular smelting process and equipment characteristics.