GASIFICATION DEVICE WITH SLAG REMOVAL

摘要

The invention relates to a device for removing slag from a reactor for the entrained flow gasification of liquid or finely comminuted solid fuels at temperatures above the ash-fusion temperature of the fuel and at a pressure of between 0,3 to 8 MPa. A gasification reactor and a water bed are arranged in a pressurised container, said water bed being arranged below the gasification reactor that is designed such that the generated synthesis gas is removed by the upper region of the reactor and liquid slag deposited on the walls of the reaction chamber can run freely off without the surface of the slag solidifying. At the bottom side thereof, an opening with a dripping edge on which the liquid slag running down can drain is arranged. A slag removal shaft connects below the opening that protrudes into the water bed. A cooling medium flows through the upper part of the wall of the slag removal shaft and the lower part of the wall of the slag removal shaft, that extends until it reaches the water bed is covered on the inner side with a water film is joined in a gas-tight to the upper part and the lower and the upper parts of the slag removal shaft are connected together in such a manner that the water film of the lower wall does not come into contact with the wall through which the cooling medium flows or the insulating mass,.