Patent ID: 8757528
Filing Date: 2014-06-24
Classification: B02C,C10J

Abstract:
1. A device for the removal of hot slag originating from coal gasification or synthesis gas production, comprising: a pressure vessel for coal gasification housing a slag water bath; one or more lock transfer vessels connected to the pressure vessel and provided for the slag and arranged in the direction of gravity flow below the slag water bath; and a crushing unit being fitted below the slag water bath, wherein a stream of slag-bearing liquid is conveyed from the slag water bath to the one or more lock transfer vessels by a slag discharge line and at least a part of the slag-bearing liquid stream is withdrawn from the upper section of the one or more lock transfer vessels; wherein the one or more lock transfer vessels comprises one upper and one lower cylindrical section; the upper cylindrical section having a diameter smaller than that of the lower cylindrical section; the upper and lower cylindrical sections being connected via a tapered section; and the tapered section having a conical shape, with an angle ranging from 30° to 60°, relative to the horizontal.