... and close to the burner, water is filled for cooling in order to prevent deformation under high ... filler, which form into an inverted arch. After drying up, vertical shaped magnesium bricks 380 are laid on ... with an expansion seam of 10mm in between, and for each ring, an expansion seam is properly reserved. ... of air blowers, one is of lower pressure blower for burning fuel, at an air capacity of 10, ...