Refractory ring and refractory ring system and methods for assembling the same
AssigneeRefractory Intellectual Property GmbH & Co. KG
InventorsG. Michael Friebel, Pavan Shivaram
Life of this patent
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Abstract
A unitary refractory ring having a sidewall surrounding and spaced from a center axis, and one or more lifting lugs distributed around the center axis. The lifting lugs extend from an inner face of the sidewall towards the center axis, and are located between lower and upper axial faces of the sidewall. Each lifting lug has a lower lug face extending radially towards the center axis from the inner face of the sidewall, and a backing structure extending upwards along an axial direction from the lower lug face towards the upper axial face of the sidewall. An assembly of refractory rings, and methods for making and assembling refractory rings are also provided.
Claims24
A unitary refractory ring comprising:
- a sidewall forming a continuous closed loop about a center axis extending in an axial direction, the sidewall being spaced from the center axis in a radial direction that is perpendicular to the axial direction, and having an inner face facing towards the center axis, and an outer face facing away from the center axis, the inner face and the outer face extending in the axial direction between a lower axial face at a bottom of the sidewall, and an upper axial face at a top of the sidewall wherein the sidewall is configured to prevent passage of molten material through the inner face to the outer face between the lower axial face and the upper axial face, and wherein the lower axial face faces downward when the center axis is oriented vertically;
- and
- one or more lifting lugs distributed around the center axis and extending from the inner face towards the center axis at respective locations along the axial direction between the lower axial face and the upper axial face, each of the one or more lifting lugs comprising a lower lug face extending radially towards the center axis from the inner face and facing downward when the center axis is oriented vertically, and a backing structure extending upwards along the axial direction from the lower lug face towards the upper axial face;
- wherein the one or more lifting lugs are configured to support the weight of the unitary refractory ring when the center axis is oriented vertically, by contact with the respective lower lug face of each of the one or more lifting lugs.
A method for assembling a unitary refractory ring, the method comprising:
- forming a lower brick layer defined by a ring of lower bricks arranged at a first distance from a center axis;
- forming a lifting brick layer located above the lower brick layer with respect to an axial direction parallel to the center axis, the lifting brick layer being defined by:
- one or more lifting layer sidewall bricks arranged in one or more groups at a second distance from the center axis, and
- one or more lug bricks arranged in one or more groups at a third distance from the center axis,
- wherein the third distance is less than the second distance and the first distance, and
- wherein each of the one or more groups of lug bricks is located adjacent to a respective one of the one or more groups of lifting layer sidewall bricks;
- forming an upper brick layer located above the lifting brick layer with respect to the axial direction, the upper brick layer being defined by a ring of upper bricks arranged at a fourth distance from a center axis;
- and
- joining the lower bricks, lifting layer sidewall bricks, lug bricks and upper bricks together to form a unitary structure.
Dependencies are inferred from the claim text.