Feeding method of sulatusuuni

(1) Regardless of the charge, put the next melt slowly before the previous charge is melted. If the charge with a lot of rust and sticky sand is used incorrectly, the block size and shape of the charge are not good, the charge is not packed tightly and the build-up is serious, or if too much cold charge is added at one time, “bridging” is likely to occur. The liquid level must be checked frequently, and the bridge should be dealt with as soon as there is a bridge, and the “bypass” must be smashed to avoid the formation of the “bypass”. Otherwise, the molten iron at the lower part will overheat, causing corrosion of the lower furnace lining, and even leakage or explosion of the molten iron.

(2) Bridge treatment method: reduce the melting current to below 500A; poke it with an iron rod; if it is not disposed, turn the electric furnace appropriately and keep the melting at low power until the molten iron breaks the bridge or the capping layer;

(3) After the furnace charge is completely melted, the slag should be removed immediately to prevent the formation of “slag caps”. If a “slag cover” is formed, power off immediately and break the “slag cover” out of the furnace, otherwise the molten iron at the lower part will overheat, causing erosion of the lower furnace lining, and even leakage or explosion of the molten iron