DEVICE AND METHOD OF TUYERE PERMEATION LENGTH

摘要

PURPOSE: The apparatus for maintaining penetration depth formed at the front end of an oxygen tuyere in an optimum state and method for maintaining the same are provided, which can actively cope with the change of the volumetric flow rate of the oxygen and the change of the constituting material in a coal packed bed, and can actively control an applied pressure in the melter gasifier to control the blowing velocity of the oxygen. CONSTITUTION: A sensor(2) for measuring distance using a laser for continuously measuring the penetration depth is provided. A high tensile force steel casing is installed at the external surface of the sensor(2), a specified gap is formed at the front end of the casing and fused silica with a specified thickness is filled in the specified gap. The titled method comprises measuring penetration depth by a process computer(3) connected to the sensor, comparing the received penetration depth with a predetermined optimal penetration depth to obtain a difference between them and obtaining a changing amount of a pressure in a melter gasifier through a mutual relation between a predetermined change amount of a pressure in the melter gasifier with that of the penetration depth using the difference between the actual penetration depth with the optimal penetration depth.