PRE-AGGREGATE DRYING METHOD AND ENERGY EFFICIENT ASPHALT PLANT
First Claim
Patent Images
1. A method of making hot mix asphalt comprising the steps of:
- providing an asphalt mixer;
providing a supply of aggregate material;
providing a structure which is configured for enclosing and containing aggregate material and protecting said aggregate material from atmospheric precipitation and further causing air to flow through the aggregate material for the purpose of drying said aggregate material with artificially heated and propelled air; and
causing said aggregate material to move from said structure into said asphalt mixer.
3 Assignments
0 Petitions
Accused Products
Abstract
An HMA plant which uses incidental heating of metal surfaces in combination with hot exhaust gases to pre-heat and pre-dry virgin aggregate material contained in an enclosed container which permits hot dry air to pass through interstices in the virgin aggregate material stored in the container.
2 Citations
20 Claims
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1. A method of making hot mix asphalt comprising the steps of:
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providing an asphalt mixer; providing a supply of aggregate material; providing a structure which is configured for enclosing and containing aggregate material and protecting said aggregate material from atmospheric precipitation and further causing air to flow through the aggregate material for the purpose of drying said aggregate material with artificially heated and propelled air; and causing said aggregate material to move from said structure into said asphalt mixer. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of making hot mix asphalt comprising the steps of:
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providing an asphalt mixer; providing a supply of aggregate material; providing a structure configured for enclosing and containing aggregate material in a substantially stationary arrangement and protecting said aggregate material from precipitation and further causing air to flow through the aggregate material for the purpose of drying said aggregate material with artificially heated and propelled atmospheric air; and causing said aggregate material to move from said structure into said asphalt mixer. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A method of making asphalt comprising the steps of:
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reclaiming heat from a heated metal object; using reclaimed heat for heating air which flows into a structure and through aggregate material to produce heated aggregate material; and using the heated aggregate material to make asphalt. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification