Repairing Paste

Due to the requirements of the smelting process, the iron tapping hole of the submerged arc furnace needs to be opened at regular intervals for iron tapping. After the iron tapping is completed, it should be sealed and repaired. The working environment is harsh. Carbonaceous materials are exposed to high-temperature metal liquids, slag and gas for a long time, and are prone to oxidation when in contact with air. In order to quickly seal or burn through the tapping holes and ensure the continuous operation of smelting production, the iron tapping hole repair paste was developed. It is made from high-quality anthracite as raw material and pitch as binder. With its high extensibility and fluidity, it can quickly melt at a certain temperature in a short time, fill the damaged part of the iron tapping hole and rapidly calcine and harden after being crushed in the furnace, integrating with the original carbonaceous material of the iron tapping part. With its high mechanical strength and oxidation resistance, it can extend the service life of the carbonaceous material of the iron tapping hole. Improve the continuous operation efficiency of the submerged arc furnace.