Screen installation for separating solids from liquid streams in pipelines

Claim 2

A screen installation for separating solids from liquid streams in pipelines, which includes a separator housing means with a screen basket means having its open end connected with walls of the housing means, in which the liquid flows externally against the screen means, and which is provided with at least one discharge aperture means arranged near the screen base, characterized in that the housing means includes a lateral inlet pipe connection within the area of the screen means for soiled water, and at least one adjustable guide means in said inlet pipe connection for the substantially tangential deflection of the soiled water stream flowing transversely against the screen means.

Claim 3

A screen installation according to claim 1, characterized in that the adjustable guide means consists of a valve rotatably supported in the inlet connection whose guide surface corresponds approximately to the flow cross section of the inlet pipe connection.

Claim 4

A screen installation according to claim 2, characterized in that the axis of the valve means forms an angle with the center axis of the housing means.

Claim 5

A screen installation according to claim 1, characterized in that the axis of the valve means forms an angle with the center axis of the housing means.

Claim 6

A screen installation for separating solids from liquid streams in pipelines comprising a separator housing means, a screen basket means arranged in said separator housing means to define an annular space between said screen basket means and said housing means for separating solids from a liquid stream directed against the exterior of said screen basket means, said screen basket means having an open end at a screen base connected with an opening of said housing means, at least one discharge aperture means arranged near said screen base in said housing means for discharging from said housing means said solids separated from said liquid stream, inlet pipe means connected laterally to said housing means for flowing said liquid stream carrying solids into said housing means transversely to said screen basket means, and at least one adjustable valve means disposed in said inlet pipe means for deflecting said liquid stream carrying solids into a substantially tangential flow toward said screen basket means and for providing turbulence of said liquid stream in said annular space, whereby said turbulence can be varied depending on the type and nature of said solids to promote continuous removal of solids from the exterior of said screen basket means.

Claim 7

A screen installation for separating solids from liquid streams in pipelines comprising a separator housing means, a screen basket means arranged in said separator housing means to define an annular space between said screen basket means and said housing means for separating solids from a liquid stream directed against the exterior of said screen basket means, said screen basket means having an open end at a screen base connected with an opening of said housing means, at least one discharge aperture means arranged near said screen base in said housing means for discharging from said housing means said solids separated from said liquid stream, inlet pipe means connected laterally to said housing means for flowing said liquid stream carrying solids into said housing means transversely to said screen basket means, and at least one adjustable valve means disposed in said inlet pipe means for deflecting said liquid stream carrying solids into a substantially tangential flow toward said screen basket means and for providing turbulence of said liquid stream in said annular space, whereby said turbulence can be varied depending on the type and nature of said solids to promote continuous removal of solids from the exterior of said screen basket means.

Claim 8

A screen installation according to claim 5, wherein said adjustable valve means is formed of a disk-shaped element having a surface corresponding approximately to the flow cross section of said inlet pipe means.

Claim 9

A screen installation according to claim 6, wherein said adjustable valve means is rotatable about an axis, said axis forming an angle with the center axis of the housing means.

Claim 10

A screen installation according to claim 7, wherein said axis of said adjustable valve means is parallel to said center axis.

Claim 11

A screen installation according to claim 5, wherein said adjustable valve means is rotatable about an axis, said axis forming an angle with a center axis of said housing means and said concentrically arranged screen basket means.

Claim 12

A screen installation according to claim 9, wherein said axis of said adjustable valve means is parallel to said center axis.

Claim 13

An installation according to claim 5, wherein said discharge aperture means are arranged tangentially with respect to said housing means.

Claim 14

An installation according to claim 5, wherein said screen basket means is cylindrical and is disposed concentrically in a cylindrical portion of said housing means.

Claim 15

An installation according to claim 5, wherein said opening of said housing means is relatively larger than said discharge aperture means.