HEAT EXCHANGER FOR PRODUCTING OF STEAM USED THE WASTE HEAT

摘要

The synthesis gas cooler and waste heat boiler comprises an outer shell with top inlet for gas and entrained solids, a gastight inner water wall for radiant heat exchange over the cooler full length, and an outer waterwall within the shell and forming an annulus with the inner wall, colsed at the top except for a gas outlet. A body of water is held in the bottom of the shell to receive and quench the solids, and a baffle connected to the outer wall bottom extends into the water to direct gas flow into the annulus. A second baffle is connected to the inner wall bottom but ends above the water levle to form a passage accelerating the gas-solids flow towards the water surface to reverse the direction of flow to separate the solids.