Patent DE-102008004571-A1 (DE)
Title: Device to treat particulate biological or pharmacological material, has hot gaseous medium, treatment zone, blower to circulate the medium, separator formed as centrifugal separator with inlet and outlets, and wrapped deflecting element
Inventor: BICHSEL RUDOLF
IPC: A61J3/02
Filed: 2008-01-09
Abstract: The device (10) comprises a hot gaseous medium, a treatment zone (14), in which the material to be treated is subjected to an admission with the hot gaseous medium, a blower (16) for circulating the gaseous medium, a separator, which is separatable from the circulating medium during the treatment of the developing fine particles, and a wrapped deflecting element, which is arranged in a helical-shaped line and through which a stream of the gaseous medium with fine particles is dividable into a radially external first partial stream and internal second partial stream. The device (10) comprises a hot gaseous medium, a treatment zone (14), in which the material to be treated is subjected to an admission with the hot gaseous medium, a blower (16) for circulating the gaseous medium, a separator, which is separatable from the circulating medium during the treatment of the developing fine particles and is formed as a centrifugal separator provided with an inlet and two outlets, and a wrapped deflecting element, which is arranged in a helical-shaped line and through which a stream of the gaseous medium with fine particles developing over the inlet is dividable into a radially external first partial stream enriched with the fine particles supplyable to a first outlet and into an internal second partial stream released from the fine particles supplyable to a second outlet. The centrifugal separator is arranged in the treatment zone. The second partial stream released from the fine particles is supplied to the blower for circulation. The first partial stream enriched with the fine particles is delivered from the treatment zone. The treatment zone has a series of suspended tubes. The circulating gaseous medium is supplyable to a superior end of the suspended tubes and a conveying groove carrying a particulate biological or pharmacological material is arranged under a lower-lying end of the suspended tubes. A thermal energy loaded additional gaseous medium is supplied to the circulating gaseous medium. The quantity of the supplied medium corresponds to the quantity of the delivered first partial stream. The thermal energy loaded additional gaseous medium is downstreamly supplied to the centrifugal separator and is upstreamly supplied to the blower. Collecting channels, over which the gaseous medium is collected after contacting with the material, are laterally arranged to the conveying groove and are supplyable to the centrifugal separator. The suspended tubes flows into the collecting channel depend of the bottom, over which a collector (18) is arranged. The collector is connected with a suction side (20) of the blower. A gas burner is arranged at the collector and supplies the thermal energy loaded additional gaseous medium to the collector. The collecting channel flows into a cassette, in which a multiple of centrifugal separators are arranged. The first partial stream enriched with the fine particles is collectively delivered over a common outlet and is supplied to a further separator. The first partial stream is supplied to a cascade at the further separator.