Apparatus for de-dusting gases

US4324570A · kind A · utility

Assignee

• BASF SE

Inventors

• Gerhard Pforr · Ludwigshafen, DE
• Gerhard Peschau · Bischofswerda, DE
• Guenter Schippmann · Mannheim, DE
• Max Appl · Schifferstadt, DE
• Erfried Voelkl
• Hans Stark · Lennep, DE

Key dates

• Filing date: Apr 24, 1980
• Grant date: Apr 13, 1982
• Expiry date: Apr 24, 2000

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D46/34
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

De-dusting of gases is carried out in an apparatus containing a granular-bed filter, the pourable granular filter medium flowing downward through the bed. The apparatus comprises a vessel of rectangular cross-section with a vertical side wall (4) extending from the top to the bottom. A partition (5), arranged parallel to the side wall (4), extends from the upper end of the vessel into the interior of the vessel. The remaining three side walls of the vessel extend - at least starting from a level corresponding to the lower end of the partition (5), taperingly downward to the outlet (9). The partition (5) is supported by the two walls adjacent to the vertical wall and forms, together with these and with the talus (7) of the filter medium, which arises at the lower end of the partition, a chamber (3) into which the inlet (2) for the gas to be purified opens. At the inlet (10) for the filter medium, located at the upper end of the partition, a further talus (12) of the filter medium forms, defining a collecting chamber (16), in which the outlet (17) for the purified gas is located.