Patent ID: 6743382
Filing Date: 2004-06-01
Classification: F27B,F27D

Abstract:
A method of installing a refractory lining in a wall of an electric induction furnace, the method comprising the steps of:providing a dry refractory material between a liner form placed within the furnace and a furnace wall; placing at least one variable frequency/amplitude electric vibrator in operational communication with an element selected from a structural member of the furnace, the liner form, and a vibrator rig placed within the furnace; inducing flow of the dry refractory material by operating at least one variable frequency/amplitude vibrator in a first operational mode having a high amplitude, low frequency vibration; and compacting the dry refractory material by operating at least one variable frequency/amplitude vibrator in a second operational mode having low amplitude, high frequency vibration after inducing flow of the dry refractory material.