(B1) ;METHOD OF AND APPARATUS FOR REMOVAL FROM INSTALLATION FOR PRESSURE GASIFICATION THE RESIDUES FORMED DURING FUEL GASIFICATIONGAZIFIKACII POD POWYSHENNYM DAVLENIEM OSTATKA,OBRAZUJUHHEGO VO VREMJA GAZIFIKACII TOPLIVA

摘要

An improvement in a process for periodically sluicing residues which are produced when gasifying ash-containing fuels with oxygen or an oxygen-containing composition under a pressure of 10 to 200 bars wherein ash is granulated in a water bath connected to a gasification chamber, suspended in water and passed into a non-pressurized collecting vessel provided with a conveyor is described. The improvement comprises: a. discharging the residue from said water bath which is maintained in fluid communication with said gasification chamber via a lock vessel, said lock vessel being connected to a surge tank which contains water so that the lock vessel remains constantly filled with water; b. equalizing the pressure between said lock vessel and said gasification chamber including said water bath by opening a connection to a process water feed line for said water bath and admitting water therein; c. depressurizing said lock vessel and removing liberated gases (previously dissolved in the water) and steam therefrom by opening a connection between said lock vessel and said surge tank; d. discharging suspended and granulated residues from said lock vessel into a collecting vessel by flushing said lock vessel with an adjustable amount of water flowing from said surge tank; and e. adjusting the water level in the collection vessel during the time the lock vessel is open so that the water level is sufficiently high such that no gas penetrates the lock vessel from the outside and the water level in the lock vessel does not sink.