Filtering device for fluids

摘要

The present invention relates to a filtering device for fluids, in particular thermoplastics, comprising a screen carrier (2) which has a rotationally cylindrical outer face (41) and is mounted rotatably in a rotationally cylindrical recess (5), adapted to its circumference, of a stationary housing (3) and in which a number of screening nests (6) having filter arrangements (7) are formed along its circumference. According to the invention, there is provision whereby the screen carrier (2) is penetrated by a rotationally cylindrical core part (1) and is mounted rotatably on this, the core part (1) and the housing (3) being designed to be stationary and fixed in terms of rotation with respect to the rotatable screen carrier (2).

主权项

1. A filtering device for fluids, in particular thermoplastics, comprising a screen carrier which has a rotationally cylindrical outer face and is mounted rotatably in a rotationally cylindrical recess, adapted to its circumference, of a stationary housing and in which a number of screening nests having filter arrangements are formed along its circumference, whereby the screen carrier is penetrated by a rotationally cylindrical core part and is mounted rotatably on the core part, the core part and the housing being designed to be stationary and fixed in terms of rotation with respect to the rotatable screen carrier, characterized in that,
an inflow duct for fluid to be filtered and an outflow duct for filtered fluid are worked out or cut out in a surface of the core part and extend, in planes in each case parallel to one another and running perpendicularly with respect to the axis of rotation of the core part, at least over a circumferential portion of the core part, and in that a supply conduit and a discharge conduit for the fluid for the respective screening nests are formed in the screen carrier, a mouth of the supply conduit lying on an inner face of the screen carrier in the plane of the inflow duct, and the mouth of the discharge conduit lying on the inner face of the screen carrier in the plane of the outflow duct, so that the supply conduit is connectable in a fluid-conducting manner to the inflow duct and the discharge conduit to the outflow duct.