Apparatus for the continuous hot dip coating of a metal strip with rear pouring compartment optimally angled with the passage plane of the metal strip

An apparatus for continuous hot dip coating of a metal strip, comprising:

• a vessel having a liquid metal bath, the apparatus configured for operating in a usage configuration in which the metal strip travels through the apparatus and is hot dip coated by passing through a liquid metal in the liquid metal bath;
• a bottom roller arranged in the vessel, the bottom roller for immersing in the liquid metal bath;
• a displacement casing for the metal strip having a lower end for immersing in the liquid metal bath to define a liquid metal seal with a surface of the liquid metal bath and an inside of the displacement casing, the apparatus configured such that the metal strip travels through the displacement casing to the bottom roller along a passage plane;
• the displacement casing including a pouring box at the lower end, the pouring box delimiting a front pouring compartment for liquid metal located on a first side of the metal strip, the front pouring compartment facing a first face of the metal strip which faces the bottom roller, and a rear pouring compartment for liquid metal located on a second side of the metal strip, the rear pouring compartment facing a second face of the metal strip which does not face bottom roller, each of the front and rear pouring compartments being inwardly delimited by an inner wall and outwardly delimited by an outer wall, each inner wall including an upper rim below the liquid metal seal to produce a flow from the liquid metal seal into each of the front and rear pouring compartments, an upwardly extending plane of the outer wall of the rear pouring compartment and the passage plane of the metal strip configured to intersect to form an acute angle, the acute angle being greater than or equal to 15° in the usage configuration, the outer wall of the rear pouring compartment forming an outer wall of the pouring box.