Method and apparatus for bulk material treatment

Details Method and apparatus for bulk material treatment Method and apparatus for bulk material treatment

1976-07-30

1978-11-28

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 10, 34 17, 34 19, 34 57C, 34 60, F26B 322, F26B 330

Patent

active

041269454

ABSTRACT:
A method and apparatus for treatment of bulk material, as e.g. heating to dry pasta (macaroni products), involves turning the individual pieces of bulk material and displacing them relatively to one another during treatment, and takes place in a throughflow fluidized bed. In one form heating is effected with microwaves, a fluidized bed duct acting as wave guide tube. Multistage processes are disclosed, including a pair of sub-steps involving separate heating and subsequent drying, at least the former utilizing microwave heating. The sub-steps can take place in separate treatment ducts which share a common air circulation duct, both the treatment ducts forming an integral unit.

REFERENCES:
patent: 3012331 (1961-12-01), Oholm et al.
patent: 3063848 (1962-11-01), Van Gelder
patent: 3528179 (1970-09-01), Smith
patent: 3771234 (1973-11-01), Forster et al.
patent: 3849900 (1974-11-01), Dale et al.

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