Process and apparatus for moving and treating a particulate mate

Details Process and apparatus for moving and treating a particulate mate Process and apparatus for moving and treating a particulate mate

1995-08-08

1997-12-02

Czaja, Donald E.

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

427213, 118712, 118303, 118309, 118DIG5, 34494, 34 82, B05D 500

Patent

active

056933622

ABSTRACT:
The apparatus has a container which contains a first filter. During operation, this separates the first interior region containing particulate material from a second interior region. The latter is connected to a downstream dust separator. This has a housing which contains a second filter. The apparatus furthermore has a fan, at least one dust concentration sensor and a control device connected to this and to the fan. During fluidization and treatment of the particulate material in the first interior region of the container, the dust concentration in the oxygen-containing gas flowing from the first filter to the second filter and usually consisting of air is measured. If the dust concentration is at least equal to a predetermined limit below the lower explosion limit, the control device switches off the fan. This makes it possible to keep the pressures generated by any dust explosion relatively small.

REFERENCES:
patent: 3570716 (1971-03-01), Kisanoff
patent: 4323312 (1982-04-01), Glatt et al.
patent: 4535006 (1985-08-01), Naunapper et al.

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