Glatt Maschinen-und Apparatebau Ag

Gunther Boos

Matthias Tondar

Wolfgang Hungerbach

Winfried Doetsch

Lutz Donnerhack

A drum for holding, moving and treating a particulate material is rotatable about its axis and has a metallic wall enclosing the axis and provided with perforation holes. A wire fabric has wires sintered to one another, rests essentially with its entire outer surface against the inner surface of the wall, is sintered essentially over its entire outer surface to the wall and separates the perforation holes thereof from the free interior space of the drum. Since the wire fabric rests essentially with its entire outer surface against the wall, no particulate material can enter between the wall and the wire fabric. The wire fabric is durable and can be cleaned rapidly and readily together with the rest of the drum.

Drum for holding a particulate material, device having a drum and

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.

Growing community of inventors

Bad Sackingen, Germany

Gunther Boos