US 4,424,756 AGranted

Suspended roof construction for industrial furnaces

AssigneeMerkle Engineers, Inc.

InventorFrank P. Merkle

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Abstract

A suspended roof construction for industrial furnaces is disclosed having carrier bricks of generally rectangular configuration with a hanger recess in one side and shoulder means extending from the upper portion of sides adjacent the hanger recess for support of filler bricks. Thus, a single hanger suspends two carrier bricks which in turn support four filler bricks. Such assemblies of bricks may be fabricated into panel units which provide telescoping tubes on at least one end of hanger tubes for suspension of end bricks between adjacent panel modules. The telescoping tubes may be retracted, the panel unit lowered into place between the structural frame of the furnace roof, the telescoping tubes extended and filler bricks hung from cross bars at each end of the panel unit to fill the spaces between adjacent panels. The suspended roof construction of this invention provides a substantially flat cold surface for easy cleaning and modular panel units which may be more easily fabricated, maintained and repaired.

Claims19

Dependent claims

In suspended roof construction for high temperature furnaces having a plurality of roof panel modules suspended from a structural support frame, each said panel module comprising:

at least two spaced hanger tubes extending the length of one dimension of said panel module;
a plurality of roof assembly units independently suspended from said hanger tubes, each said roof assembly units comprising;
two refractory carrier bricks of a generally rectangular configuration, each of said carrier bricks having a first and a third opposing side and a second and fourth opposing side, said first side having a blind hanger recess extending into said brick for a portion of its thickness for engagement with a hanger capable of suspending said carrier bricks, said first side of one of said carrier bricks adjacent to and in communication with said first side of the second said carrier brick, said carrier bricks further comprising shoulder means extending from the upper portion of at least one of said second and fourth sides;
at least one refractory filler brick having a generally rectangular configuration and a supporting lug on the upper portion of one side thereof engaged with said shoulder means, the entire top surfaces of said carrier bricks and said filler bricks being in a substantially flat, common plane;
and a hanger in engagement with said hanger recesses of said carrier bricks at one end and in engagement with one of said hanger tubes at the other end.

2 more elements

A suspended roof construction for a high temperature furnace comprising:

a structural support frame;
at least one panel module comprising a plurality of independently suspended roof assembly units, said panel module(s) suspended from said support frame by suspension means;
each of said roof assembly units comprising two refractory carrier bricks of a generally rectangular configuration, each of said carrier bricks having a first and a third opposing side and a second and fourth opposing side, said first side of one of said carrier bricks adjacent to and in communication with said first side of the second said carrier brick, said first sides having blind hanger recesses extending into said bricks for a portion of their thickness for engagement with a hanger capable of suspending said carrier bricks, said carrier bricks further comprising shoulder means extending from the upper portion of at least one of said second and fourth sides;
at least one refractory filler brick having a generally rectangular configuration and a supporting lug on the upper portion of one side thereof engaged with said shoulder means, the entire top surfaces of said carrier bricks and said filler bricks being in a substantially flat, common plane;
a hanger in engagement with said first sides of said carrier bricks and capable of suspending said carrier bricks;
and at least two spaced hanger tubes extending the length of one dimension of said panel assembly and having said hangers depending therefrom, said hanger tubes suspended from said support frame by said suspension means.

3 more elements

Dependencies are inferred from the claim text.