Patent ID: 9377785
Filing Date: 2016-06-28
CPC Classification: G05D,Y10T

Claim Text:
1. A device for reliable filling level control in a quenching chamber, wherein the quenching chamber receives a hot raw gas and liquid slag from an entrained-flow gasifying reactor and cools the hot raw gas and liquid slag by injecting an excess of quenching water forming a water bath in a lower part of the quenching chamber, wherein a water level of the water bath can be controlled between a minimum level and a maximum level, wherein a raw-gas outlet is located above the water level of the water bath, the device comprising: a differential-pressure transmitter comprising a first pressure-recording location for exposure to a pressure in a gas chamber of the quenching chamber and a second pressure-recording location for exposure to a pressure at a bottom of the water bath, wherein the differential-pressure transmitter provides an information signal as a measure of a geodetic height of the water bath; and a feed of inert gas line connecting the first pressure-recording location to the gas chamber that is adapted to provide an inert gas flushing, wherein the quenching chamber comprises an inner shell as a skirt and an outer pressure-bearing shell, wherein a skirt flushing is arranged between the inner shell and the outer pressure-bearing shell, wherein the skirt flushing overflows into an interior of the inner shell, wherein the feed of inert gas line connecting the first pressure-recording location to the gas chamber is connected to a quenching lance, wherein a sleeve enclosing the quenching lance is arranged and the inert-gas flushing is provided through the sleeve, and wherein the sleeve is drawn forward into the gas chamber to an extent that the sleeve protrudes beyond a nozzle head of a spray nozzle by 1 to 4 times a spray nozzle diameter.