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US 10,870,954 B2Granted
Asphalt paving mixtures storage silo thermal barrier system
AssigneeAstec, Inc.
InventorMalcolm L. Swanson
Life of this patent
Estimating the term…
Abstract
A storage silo apparatus having a storage silo including a shell wall, a secondary wall spaced radially outwards from the shell wall, and a space having a first width formed between an outer surface of the shell wall and an inner surface of the secondary wall. An insulation layer located in the space is narrower than the space such that an air gap is formed within the space. The air gap is formed radially adjacent the insulation layer and is configured to resist heat transfer between the shell wall and the secondary wall.
Claims17
A storage silo apparatus comprising:
- a storage silo having a cylindrically-shaped shell wall having a height and configured to hold heated asphalt paving material and to be sealed to retain heat within the storage silo;
- a secondary wall spaced radially outwards from the shell wall and surrounding the silo;
- a space having a first width and that is configured to retain heat, the space formed between an outer surface of the shell wall and an inner surface of the secondary wall;
- an insulation layer disposed in the space between the secondary wall and the shell wall, the insulation layer having a second width that is smaller than the first width such that the difference between the first width of the space and the second width of the insulation layer forms a continuous air gap within the space encircling the shell wall of the storage silo, wherein the air gap is formed radially adjacent the insulation layer and is configured to resist heat transfer between the shell wall and the secondary wall;
- and
- a plurality of air dams located in the air gap in a spaced apart arrangement dividing the air gap into two or more ring-shaped air gap segments having top and bottom ends that are defined by a pair of adjacent air dams.
3 more elements
A storage silo apparatus comprising:
- a storage silo having a cylindrically-shaped shell wall having a height and configured to hold heated asphalt paving material and to be sealed to retain heat within the storage silo;
- a secondary wall spaced radially outwards from the shell wall and surrounding the silo;
- a space having a first width and that is configured to retain heat, the space formed between an outer surface of the shell wall and an inner surface of the secondary wall;
- an insulation layer disposed in the space between the secondary wall and the shell wall, the insulation layer having a second width that is smaller than the first width such that the difference between the first width of the space and the second width of the insulation layer forms a continuous air gap within the space encircling the shell wall of the storage silo, wherein the air gap is formed radially adjacent the insulation layer and is configured to resist heat transfer between the shell wall and the secondary wall;
- and
- a plurality of supports disposed in the air gap and having an end configured to contact the insulation layer in order to maintain the insulation layer at a selected position between the outer surface of the shell wall and the inner surface of the secondary wall.
3 more elements
Dependencies are inferred from the claim text.