The chimney at " Sasol Three " consists of a 26 m ( 85 ft ) diameter windshield with four 4.6 metre diameter concrete flues which are lined with refractory bricks built on rings of corbels spaced at 10 metre intervals.
42.
It may consist of refractory bricks or cast refractory concrete, or may be absent in zones of the kiln that are below around 250 �C . The refractory selected depends upon the temperature inside the kiln and the chemical nature of the material being processed.
43.
The iron making blast furnace itself is built in the form of a tall structure, lined with refractory brick, and profiled to allow for expansion of the charged materials as they heat during their descent, and subsequent reduction in size as melting starts to occur.
44.
Because of work-exposure to silica dust, silicosis is an occupational hazard to mining, sandblasting, quarry, ceramics and foundry workers, as well as grinders, stone cutters, refractory brick workers, tombstone workers, pottery workers, flint knappers and others.
45.
Used for industrial purposes between 1912 and 1979, the land was owned by various brick manufacturers, including Sutherland Brick Co, Refractory Bricks, and Punchbowl Brick and Tile Co . Sydney Water Board acquired the land in 1974 for water-storage purposes, but instead it became an equipment storage facility.
46.
The life of the refractory bricks in the ISASMELT furnace was initially shorter than expected and a water cooling system was briefly considered to extend them; Since 1998, the refractory lining lives have exceeded the two-year design life, The most recent lining lasted for 50 months, with the one before that lasting for 44 months.
47.
He was chairman of directors of Littlehampton Brick Co . Ltd . from at least 1945, ( This factory is among the oldest in South Australia, but apart from its refractory bricks, not a large supplier due to the distance from Littlehampton to Adelaide . ) Note that Mr . H . G . Willcox, a son of Charles Willcox, was a director of this company.
48.
RUL is a critical property for refractory bricks, which basically reflects the service temperature of the bricks, raw materials, etc . ( Refractoriness Under Load ) RUL values ( T0.6 @ 0.2MPa ) for fireclay-based refractory bricks are usually below 1500 �C . for medium duty fireclay bricks only at about 1300 �C, high duty fireclay bricks at 1350 to 1420 �C, superduty fireclay bricks between 1420 and 1500 �C ( sometimes even higher than 1500 �C ).
49.
RUL is a critical property for refractory bricks, which basically reflects the service temperature of the bricks, raw materials, etc . ( Refractoriness Under Load ) RUL values ( T0.6 @ 0.2MPa ) for fireclay-based refractory bricks are usually below 1500 �C . for medium duty fireclay bricks only at about 1300 �C, high duty fireclay bricks at 1350 to 1420 �C, superduty fireclay bricks between 1420 and 1500 �C ( sometimes even higher than 1500 �C ).
