Patent ID: 9200846
Filing Date: 2015-12-01
Classification: C21C,F27B,F27D

Abstract:
1. A method of opening and closing a tapping opening ( 5 ) of a metallurgical smelting vessel of an electric arc furnace in a bottom region ( 3 ) of which, a wall section ( 4 ) with an opening ( 5 ) is provided, wherein beneath the opening ( 5 ), there is provided a device ( 6 ) for displacing block elements ( 7 , 8 ) in a direction transverse to a surface normal of the wall section ( 4 ) in a region of the opening ( 5 ), wherein the device ( 6 ) so retains the block elements ( 7 , 8 ) against the wall section ( 4 ) that they sealingly abut the wall section ( 4 ), wherein for closing the tapping opening, the device ( wherein for opening the tapping opening ( wherein a new block element ( wherein a new block element (