Scum removal device and scum removal method

A scum removal device comprising:

• a snout, the snout being inserted into a liquid metal for hot dipping in a hot-dip plating pot such that a hot-dip plating bath surface is present inside the snout;
• a discharge section, the discharge section being disposed on an extension line of a steel strip entry position on the hot-dip plating bath surface at one side in a steel strip width direction, and discharging the liquid metal for hot dipping;
• and
• a suction section, the suction section being disposed on the extension line on the hot-dip plating bath surface at another side in the steel strip width direction, and sucking in the liquid metal for hot dipping;
• the suction section being configured by a first suction portion and a second suction portion, and
• the first suction portion and the second suction portion being disposed separated from each other in a steel strip thickness direction at each side of the steel strip width direction extension line of the steel strip entry position on the hot-dip plating bath surface.