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US 8,944,042 B2Granted
Wall lining of industrial ovens
AssigneeJünger + Gräter GmbH Feuerfestbau
InventorsJohannes Imle, Markus Horn
Life of this patent
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Abstract
A wall lining of industrial ovens for protecting from corrosion, in particular, a heat-resistant wall made of concrete, steel, sheet metal, or the like. The lining of the wall is made of at least two layers, wherein a layer is pressurized as a blocking layer.
Claims9
A wall lining for industrial ovens for the protection of an oven wall casing constructed of high temperature resistant materials, wherein the wall lining comprises at least three layers comprising
- a wearing surface made of a refractory material and defining an interior space of the oven and spanning the entire length of the oven wall casing,
- an insulation layer having a surface in direct contact with the casing and spanning the entire length of the oven wall casing, and
- a blocking layer that is different from the insulation layer, wherein the blocking layer serves as a blocking means comprising pressurized non-reactive gas or air;
- and
- wherein the three layers are arranged such that the pressurized non-reactive gas or air of the blocking layer fills any spaces or voids between the wearing surface and the insulation layer, and wherein the wearing surface includes projections located on a surface facing the casing that protrude into the blocking layer and abut against the insulation layer at predetermined spatial intervals to establish space between the wearing surface and insulation layer into which the pressurized non-reactive gas or air of the blocking layer may flow;
- and
- wherein metallic anchors are arranged on the casing and fasten the wearing surface to the casing such that a mechanical binding is present between the three layers of the wall lining, the metallic anchors having a terminal end located opposite an end arranged on the casing such that the terminal end terminates inside the wearing surface, the metallic anchors being at least partially encapsulated in a phase-changing coating such that when subjected to operating temperatures exhibits one or more of the following characteristics:
- melting, burning, softening, shrinking, contracting, sublimation, evaporation, or vaporizing such that at operating temperatures a void develops around the metallic anchors into which the pressurized non-reactive gas or air of the blocking layer may flow and protect the metallic anchors from corrosion.
5 more elements
A wall lining for industrial ovens for the protection of an oven wall casing constructed of high temperature resistant materials, wherein the wall lining comprises at least three layers comprising
- a wearing surface made of a refractory material and defining an interior space of the oven and spanning the entire length of the oven wall casing,
- an insulation layer comprising solid insulation and spanning the entire length of the oven wall casing, and
- a blocking layer that serves as a blocking means comprising pressurized non-reactive gas or air;
- and
- wherein the three layers are arranged such that the pressurized non-reactive gas or air of the blocking layer fills any spaces or voids between the wearing surface and the insulation layer;
- and
- wherein metallic anchors are arranged on the casing that fasten the wearing surface to the casing such that a mechanical binding is present between the three layers of the wall lining, the metallic anchors having a terminal end located opposite an end arranged on the casing such that terminal end terminates inside the wearing surface, the metallic anchors being at least partially encapsulated in a phase-changing coating such that when subjected to operating temperatures exhibits one or more of the following characteristics:
- melting, burning, softening, shrinking, contracting, sublimation, evaporation, or vaporizing such that at operating temperatures a void develops around the metallic anchors into which the pressurized non-reactive gas or air of the blocking layer may flow and protect the metallic anchors from corrosion.
5 more elements
A wall lining for industrial ovens for the protection of an oven wall casing constructed of high temperature resistant materials, wherein the wall lining comprises at least three layers comprising
- a wearing surface made of a refractory material and defining an interior space of the oven and spanning the entire length of the oven wall casing,
- an insulation layer distinct from a blocking layer and having an inner surface in contact with the blocking layer and an outer surface in contact with the casing and spanning the entire length of the oven wall casing, and
- wherein the blocking layer serves as a blocking means comprising pressurized non-reactive gas or air;
- and
- wherein the three layers are arranged such that the pressurized non-reactive gas or air of the blocking layer fills any spaces or voids between the wearing surface and the insulation layer;
- and
- wherein metallic anchors are arranged on the casing that fasten the wearing surface to the casing such that a mechanical binding is present between the three layers of the wall lining, the metallic anchors having a terminal end located opposite an end arranged on the casing such that terminal end terminates inside the wearing surface, the metallic anchors being at least partially encapsulated in a phase-changing coating such that when subjected to operating temperatures exhibits one or more of the following characteristics:
- melting, burning, softening, shrinking, contracting, sublimation, evaporation, or vaporizing such that at operating temperatures a void develops around the metallic anchors into which the pressurized non-reactive gas or air of the blocking layer may flow and protect the metallic anchors from corrosion.
5 more elements
Dependencies are inferred from the claim text.