Studies of the corrosion of an unfired tank bIock made from highly siliceous clay

GT V01 1960 211-216

Seeking ways of obtaining further fuel  savings on already well-insulated tank furnaces, two new developments have recently been carried out in the insulating technique. I. Aluminium sheets have been suspended in front  of recuperator walls. The wall was not  insulated in the normal  way because of a provision of numerous plugged openings required for  periodic cleaning of spool checkers. The aluminium  sheets reduced losses from the uninsulated regenerator walls by about 13%. Tarnishing of the sheets had no appreciable effect on their  insulating properties. 2. An experiment was carried out with  insulation of full depth ZA C electrocast side- blocks in the melting  end. A panel  of four blocks was  insulated on one  side of the furnace while another  panel  was left without  insulation  on the other  side. After a campaign of twenty-nine months the insulated panel was no worse for wear than  the uninsulated one. Following the test, full depth ZAC walls have been   insulated  on  several tank furnaces,  with  appreciable saving of fuel. 

S. Kruszewski