US Patent:
20110017016, Jan 27, 2011
Inventors:
David W. Hendrickson - Coleraine MN, US
Rodney L. Bleifuss - Grand Rapids MN, US
Raymond P. Mendrola - Pittsburgh PA, US
Clayton A. Van Scoy - Butler PA, US
Richard A. Kaminski - Pittsburgh PA, US
James Donald Bushman - Pittsburgh PA, US
Carl Emil Sutherland - Baden PA, US
Assignee:
Nu-Iron Technology, LLC - Charlotte NC
International Classification:
C21B 13/10
C22B 3/02
US Classification:
75 1067, 266122, 266205, 266160
Abstract:
A system and method for cooling and removing metallic iron and other aggregate from a moving hearth is provided. Cooling may be provided by a secondary cooling system and a spray cooling system in a cooling zone. The secondary cooling system may include an arrangement of coolant tubes for absorbing heat. A flow of nitrogen may be provided through the cooling zone. The spray cooling system may provide evaporative cooling. Aggregate removal may be provided by a magnetic removal system, a plow system, and a sweeper system. The magnetic removal system uses a magnetic device and a moving belt to remove iron materials. The plow system uses a plow to separate and remove aggregate from the moving hearth. The sweeper system may use a vacuum device to pull materials from the moving hearth.