Heating – Work chamber having heating means – Combustion products heat work by contact
Patent
1976-06-14
1978-06-27
Camby, John J.
Heating
Work chamber having heating means
Combustion products heat work by contact
431159, 431202, 432222, 432500, F27B 1700
Patent
active
040972275
ABSTRACT:
Apparatus for drying and/or curing cereal grains, tobacco and other materials, elements of which may be ingested by human beings, comprises a tube defining a flow passage in the inlet end of which is positioned a device for moving a pressured flow of air through said passage and in the outlet end of which is positioned and projected therefrom a means defining a combustion chamber. In connection with the combustion chamber are means arranged to deliver and ignite oil to produce a flame capped by and projected interiorly of the combustion chamber. The flame is enveloped in a pressured flow of air the impetus of which has its source in a blower embodied in an oil burner assembly mounted on the outer surface of the tube, which burner assembly provides for a pressured delivery of the oil. Means are provided to insure that the oil burner assembly and its blower are operating under pressure equal to or greater than the pressure of the air flow through said tube. The arrangement of the combustion housing and the flame created is such to provide for a turbulent condition in the burner housing as a result of which the products of combustion issue from the combustion chamber in an essentially clean condition. A secondary chamber is provided in the preferred embodiment illustrated, in which the products of combustion issuing from the combustion chamber may have undesirable content thereof, if any, finally broken down and vaporized before entering the pressured flow of air exiting from the tube.
In the drying or curing system illustrated the outlet end of the aforementioned tube is inserted in a wall structure forming part of a flow channel underlying the apertured floor of a drying or curing chamber. The inlet end of the tube is inserted in means defining a chamber communicated on the one hand with the atmosphere and on the other hand with the interior of the drying or curing chamber. On operation of the air moving device in said tube, the pressurized flow of air developed thereby moves through and outwardly of said tube where it entrains the total of the products of combustion of oil which has issued from said combustion chamber, to be heated thereby and to move therewith to and through the floor of the drying or curing chamber to serve its intended function. The exhaust air resulting in such chamber is selectively totally or partially exhausted to the atmosphere. In the latter case a portion is directed to intermingle with the air drawn from the atmosphere to pass through the aforementioned tube for heating as described.
REFERENCES:
patent: 1863391 (1932-06-01), Bluemel
patent: 3193265 (1965-07-01), Cowan
patent: 3593969 (1971-07-01), Smithson et al.
patent: 3664034 (1972-05-01), Wilson
patent: 3932119 (1976-01-01), Alms et al.
patent: 4011041 (1975-06-01), Taylor
Aerovent, Inc.
Bloom Jerome P.
Camby John J.
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