DEVICE TO DISCHARGE SLAG FROM COAL GASIFICATION REACTOR Russian patent published in 2014 - IPC C10J3/52 C10J3/84 

FIELD: process engineering.

SUBSTANCE: invention relates to slag removal in coal gasification or in synthetic gas production. Proposed method comprises feeding slag and fluid from slag bath into lock container via valve. Then, said container is filled with fluid and slag. Slag-water suspension flowing downward is deflected in lock container. Deflected flow flows, partially or completely, in, preferably, circular chamber composed by lock container wall and deflector. Deflected flow is homogenised by perforated discs over the entire cross-section of said mid space or over its part. Particles are partially or completely separated in compliance with size and density by deflection of slag-fluid suspension and by homogenised flow in mid space. Larger particles are deposited in lock container. Smaller particles are discharged from lock container with deflected flow. Deflected flow in mid space, preferably, circular space, flows upward. Said container is emptied via valve. Lock container hot slag withdrawal device includes top and bottom cylindrical parts. Top cylindrical part featured diameter smaller than that of bottom part. Both said parts are jointed together by fitting shaped to truncated cone. Said fitting features angle equal to that of slag natural slope, that is, 30 to 60 degrees to horizontal line.

EFFECT: minimised accumulation of useless slag, better separation of fine and coarse particles.

18 cl, 1 dwg