Refractory pouring spout and channel unit for the arrangement on an outlet of a vessel containing molten metal, especially the tundish of a strip casting installation

A refractory pouring spout and channel unit f or installation at an outlet of a vessel containing molten metal, especially at an outlet of a tundish of a strip-casting machine, the refractory pouring and channel unit comprising at least one vertical refractory pouring spout and channel part adapted to be connected to the tundish, and, proceeding from the vertical refractory pouring spout and channel part, a horizontal refractory pouring spout and channel part having one or more openings distributed over the length of the horizontal refractory pouring spout and channel part, wherein the one or more openings are distributed over a length of the horizontal refractory pouring spout and channel part, so that they are located toward the top and a certain distance away from the bottom, so that a sump is formed the in pouring spout and channel part, wherein an elongated pouring spout and channel part is divided by a partition wall into an upper and a lower chamber, wherein the outlet of the vertical pouring spout and channel part opens into the lower chamber, and wherein the partition wall has openings following a partition wall through which the molten metal, after entering the lower chamber, rises into the upper chamber and flow out from the upper chamber through openings in the boundary walls of the upper chamber.