Causes and treatment methods of converter tapping hole blockage

 

The common reasons for the steel outlet blockage are as follows:

(1) There is no steel outlet blocked after the last furnace is discharged. During smelting, the molten steel and slag enter the steel outlet, which makes the outlet blocked.
(2) After the slag pouring in the last furnace, the remaining steel slag in the tapping port is blocked without all chiseling, which causes the outlet of the next furnace to be blocked.
(3) The new outlet is generally small and long, and the plugging is not in place. In the smelting process, the steel and slag are filled into the hole, which causes the plugging.
(4) During the tapping, the slag of the lining brick and the agglomerate falling off in the molten pool enters the steel outlet, which may also cause the steel outlet to be blocked.
(5) Slag ball is used to prevent slag from steel. Before the next furnace is discharged, the slag ball of the previous furnace is not poked open, which causes the outlet to be blocked.

Treatment method of steel outlet plug:

(1) If general blockage, several people can hold the steel joint force to punch out the steel mouth, and force the steel mouth.
(2) If the blockage is serious, oxygen shall be used to burn out the steel port.

(3) If there are any blockage in the process of steel tapping, such as scattered lining bricks or agglomerated slag, etc., the converter must be shaken from the tapping position to the position of the steel outlet, the blockage must be removed to make the channel unblocked, and then the converter shall be rolled to the steel outlet position to continue to make the steel. This will have a bad effect on the steel quality.

Article Source:Causes and treatment methods of converter tapping hole blockage

Company name ：Luoyang Wanhao New Material Co., Ltd.

More Refractory Products: http://www.wanhaorefractory.com/en/product.html

Website: http://www.wanhaorefractory.com/


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