High temperature furnace nose construction

Claim 2

In a high temperature furnace constructed of refractories, curved nose construction having its center of radius of curvature outside the cold side of said furnace and said refractories suspended from a support structure providing refractory replacement from the cold side of said refractories comprising: a plurality of adjacent wedge-shaped refractories arranged to form a wedge row along the length of said nose, each said wedge refractory having one set of opposing parallel sides and one set of opposing converging sides converging toward said cold side of said wedge refractory, said wedge refractories arranged with their parallel sides adjacent to form said wedge row; a plurality of adjacent rectangular-shaped refractories arranged to form a straight row along the length of said nose, each said rectangular refractory having two sets of opposing parallel sides, one of said parallel sides adjacent one of said converging sides of at least one of said wedge refractories; each pair of two adjacent of said wedge refractories in each said wedge row independently suspended from said support structure by suspension means and each pair of two adjacent of said rectangular refractories in each said straight row independently suspended from said support structure by suspension means, said suspension means and support structure providing space allowing removal of each of said pair of refractories from said cold side of said curved nose construction; and a plurality of said wedge rows and a plurality of said straight rows, at least one of said straight rows adjacent each said wedge row forming said curved nose construction.

Claim 3

The furnace construction of claim 1 comprising two adjacent wedge rows between said straight rows, one set of opposing converging sides of said wedge refractories in said one adjacent wedge row being adjacent one set of opposing converging sides of said wedge refractories in said other adjacent wedge row.

Claim 4

The furnace construction of claim 2 wherein said refractories in one said one adjacent wedge are offset so as to be out of vertical alignment with said refractories of said other adjacent wedge row.

Claim 5

The furnace construction of claim 1 wherein said refractories in one row are offset so as to be out of vertical alignment with said refractories of adjacent rows.

Claim 6

The furnace construction of claim 1 wherein the distance between said opposing parallel sides of said wedge refractories and the distance between at least one set of said opposing parallel sides of said rectangular refractories is the same dimension.

Claim 7

The furnace construction of claim 5 wherein adjacent rows of said wedge refractories and said rectangular refractories are in alignment.

Claim 8

The furnace construction of claim 1 wherein said suspension means comprises a hanger rod suspended from said support structure and a refractory hanger suspended from said hanger rod, said refractory hanger suspending a pair of refractories.

Claim 9

The furnace construction of claim 7 wherein two to four of said refractory hangers are suspended from each said hanger rod.

Claim 10

In a high temperature furnace constructed of refractories, curved nose construction having its center of radius of curvature outside the cold side of said furnace and said refractories suspended from a support structure providing refractory replacement from the cold side of said refractories comprising: a plurality of adjacent wedge-shaped refractories arranged to form a wedge row along the length of said nose, each said wedge refractory having one set of opposing parallel sides and one set of opposing converging sides converging toward said cold side of said wedge refractory, said wedge refractories arranged with their parallel sides adjacent to form said wedge row; a plurality of adjacent rectangular-shaped refractories arranged to form a straight row along the length of said nose, each said rectangular refractory having two sets of opposing parallel sides, one of said parallel sides adjacent one of said converging sides of at least one of said wedge refractories; each pair of two adjacent of said wedge refractories in each said wedge row independently suspended from said support structure by suspension means and each pair of two adjacent of said rectangular refractories in each said straight row independently suspended from said support structure by suspension means comprising a hanger rod suspended from said support structure and a refractory hanger suspended from said hanger rod, said hanger rod comprising a first hook over said support structure on one end and a second hook for suspending said hanger on the other end, said refractory hanger comprising a hook engaging said second hook at one end and means for suspending said refractory pair from said hanger at the other end, said suspension means and support structure providing space allowing removal of each said pair of refractories from said cold side of said curved nose construction; and a plurality of said wedge rows and at least one said straight row adjacent each said wedge row forming said curved nose construction.

Claim 11

In a high temperature furnace constructed of refractories, curved nose construction having its center of radius of curvature outside the cold side of said furnace and said refractories suspended from a support structure providing refractory replacement from the cold side of said refractories comprising: a plurality of adjacent wedge-shaped refractories arranged to form a wedge row along the length of said nose, each said wedge refractory having one set of opposing parallel sides and one set of opposing converging sides converging toward said cold side of said wedge refractory, said wedge refractories arranged with their parallel sides adjacent to form said wedge row; a plurality of adjacent rectangular-shaped refractories arranged to form a straight row along the length of said nose, each said rectangular refractory having two sets of opposing parallel sides, one of said parallel sides adjacent one of said converging sides of at least one of said wedge refractories; each pair of two adjacent of said wedge refractories in each said wedge row independently suspended from said support structure by suspension means and each pair of two adjacent of said rectangular refractories in each said straight row independently suspended from said support structure by suspension means comprising a hanger rod suspended from said support structure and a refractory hanger suspended from said hanger rod, said hanger rod comprising a first hook over said support structure on one end and a second hook for suspending said hanger on the other end, said refractory hanger comprising a hook engaging said second hook at one end and means for suspending said refractory pair from said hanger at the other end, said suspension means and support structure providing space allowing removal of each said pair of refractories from said cold side of said curved nose construction; and a plurality of said wedge rows and at least one said straight row adjacent each said wedge row forming said curved nose construction.