Continuous measurements of the thickness of an open hearth roof during the campaign

Use of radioactive indicators to study roof wear in an open-hearth furnace

“…Continuous monitoring of the lining thickness during operation of a furnace enables us to study the type and rate of wear of various refractories in relation to service factors and to ensure troublefree operation of the furnace until dead banking is necessary.Despite research [1][2][3][4][5][6][7][8][9], no method has yet been devised for sufficiently accurately determining the residual thickness of the brickwork during a furnace campaign. The essence of the method is that the density of a flux of T quanta from an extended source depends on its dimensions.…”