초록 ▼

A centrifugal force separator for broken grains, husks, dust and other impurities from air has a pre-separating chamber (2) with a tangential raw gas inlet (1), in which a cylindrical deflecting screen (4) and a clean gas outlet (5) axially adjoining the latter are concentrically arranged. To increa

A centrifugal force separator for broken grains, husks, dust and other impurities from air has a pre-separating chamber (2) with a tangential raw gas inlet (1), in which a cylindrical deflecting screen (4) and a clean gas outlet (5) axially adjoining the latter are concentrically arranged. To increase the degree of dust separation at only a slight pressure loss and in the case of an inexpensive construction, and also to enable application in return-air systems in combination with other cereal crop cleaning and processing machines, a pre-separating chamber (X) for an air circulation is provided radially outside the deflecting screen (4), and an air discharge (Y) is provided radially inside the deflecting screen (4), which air discharge (Y) is in flow connection with the pre-separating chamber (X) via air passage channels (17) in the deflecting chamber (4).

대표청구항 ▼

In a centrifugal force separator for extracting particulate impurities from air, the separator being of the type including a housing, means in the housing defining an interior wall in the shape of a circumferential segment of a cylinder and a tangential raw gas inlet, cylindrical deflecting means ex

In a centrifugal force separator for extracting particulate impurities from air, the separator being of the type including a housing, means in the housing defining an interior wall in the shape of a circumferential segment of a cylinder and a tangential raw gas inlet, cylindrical deflecting means extending within the housing in opposed relationship to the interior wall, the deflecting means being hollow, having an air inlet and serving as an exhaust conduit for cleaned air to a clean gas outlet, and collecting means for the particulate impurities provided in the housing below the deflecting means, the improvement comprising: said deflecting means having a peripheral opening facing toward said collecting means; an arcuate deflecting wall positioned opposite said opening in the cylindrical deflecting means and curving around said cylindrical deflecting means, said deflecting wall having upstream and downstream ends each extending circumferentially beyond a respective extreme of said opening and each spaced from said interior wall so as to form an air circulation space for the passage of circulating air between each end of the deflecting wall and the interior wall; the space between the interior wall and said cylindrical deflecting means in the vicinity of said upstream end of said deflecting wall defining a pre-separating chamber; and means defining a channel extending between the air circulation space at the downstream end of said deflecting wall and the raw gas inlet for returning circulating air to said preseparating chamber.