Food or edible material: processes – compositions – and products – Processes – Preparation of product which is dry in final form
Patent
1976-12-29
1978-02-21
Bashore, S. Leon
Food or edible material: processes, compositions, and products
Processes
Preparation of product which is dry in final form
34 26, 426471, 432 19, 432 29, A23B 700, A23B 404
Patent
active
040753581
ABSTRACT:
A process for the air drying of a food material, such as a proteinaceous material, is disclosed wherein the drying air is heated by direct contact with a burner in such a manner that the formation of undesirable residues in the proteinaceous material as a result of combustion products from the burner is substantially reduced. The burner is operated by feeding to it a fuel mixture containing a stoichiometric quantity of air for purposes of combustion to avoid the use of drying air for combustion. The burner is also operated to provide a heat output which is sufficient for drying of the proteinaceous material but which does not exceed 800,000 BTU/hr./lineal ft. of burner. The burner is also shielded from the drying air while operated at the necessary firing rate or heat output to substantially avoid aeration of the flame by the drying air. Control of the velocity of the drying air together with the above factors substantially reduces the presence of burner combustion products in the drying air, and therefore, residues of burner combustion products in the materials to be dried.
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Madl Ronald L.
Ortinau Jerry T.
Simon Frank J.
Bashore S. Leon
Hill Virgil B.
Ralston Purina Company
Schor Kenneth M.
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