Air Products and Chemicals, Inc.

Benjamin Priest Limited

Eric Keith Riley

Philip J Young

Roger Dudill

Colin D Smith

Norris W Shepherd

Garry J Yates

Reclamation of metal from scrap

Oxygen is introduced through oxygen supply line (5) into an annular gallery (6) which it leaves at high velocity through annular channel (7). The outlet of the annular channel (7) is shaped so that, by virtue of the Coanda effect, the oxygen travels towards the downstream end of the burner (1) substantially parallel to the wall of the tubular body (2). Combustion gas from combustion chamber (13) is induced between support bars (4) into the tubular body (2) by the flow of oxygen and mixes with the oxygen and subsequently with natural gas introduced through fuel supply line (8). The mixture burns at the outlet (9) of the fuel supply line (8). The maximum temperature reached by the gas leaving the burner (1) is substantially lower than that which would be obtained by a conventional oxy-fuel flame. The burner may be used in radiant tubes.

Heating apparatus

A method of operating a continuous ceramic kiln having a decarbonization zone characterized in that oxygen or oxygen enriched air is added to the decarbonization zone to maintain the average oxygen concentration in the decarbonization zone at or about a predetermined level. The predetermined level need only be adjusted for different throughputs and need not be adjusted for moderate changes in the amount of organic matter in the clay.

Method of operating a continuous ceramic kiln

Growing community of inventors

Wolverhampton, United Kingdom

Eric Keith Riley