<p>A continuous distilling vacuum oven is used to refine metals. At least one coiling flow-guide groove (3) is disposed in every evaporation plate (1), whereof the beginning point (2) is the location at which the materials flow in, and the end point (4) is the aperture through which the materials flow out. A graphite insulating sleeve (18) is disposed around the outer perimeter of the evaporation plate (1). A graphite heating body (8) is connected and fixed to the graphite base thereof by means of graphite bolts and nuts. The outlet pipe (14) is lined with a graphite liquid-conveying conduit.</p>
