F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
39/66
F27B 1/10 (2006.01) C21B 9/02 (2006.01)
Patent
CA 1131017
ABSTRACT A blast stove having adjoining combustion and checker chambers, for use with a blast-furnace. A support structure, mounted within the checker chamber, supports tiers of interlocked checkerbricks. The support structure includes vertically extending columns which loosely engage a series of transversely extending girders, The girders supportively engage a plurality of grid bar assemblies, each assembly including a plurality of grid bars maintained in a spaced relation by transverse rods and spacers welded to the bars and further including interlocking apparatus for engaging the underlying girders and an adjacent grid bar assembly. The grid bar assemblies support a plurality of grid shoes having grid assembly engaging grooves for interlocking the grid shoes to the grid bar assemblies. The top surface of the grid shoes include recesses which receive bosses located on the underside of the checkerbricks so that the first layer of checkerbricks, is engaged by the shoes. Each of the engagements is provided with an appropriate clearance to accomodate the expected movement caused by the thermal stresses in the structure. Relative movements in any lateral direction between engaged members is constrained to predetermined limits.
348431
Republic Steel Corporation
Ridout & Maybee Llp
LandOfFree
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