Abstract: An apparatus for collecting and removing solid particles from a flowing fluid (5) includes a grid unit (6) including a plurality of stationary bars (1) being arranged to form a stationary bar unit (3), each of the stationary bars (1) including a plurality of steps (8) and including a skeleton portion (9) and a rising portion (10). A plurality of movable bars (2) is arranged to form a movable bar unit (4), each of the movable bars (2) including a plurality of steps (8) and including a skeleton portion (9) and a rising portion (10). The stationary bars (1) and the movable bars (2) are arranged side by side to alternate. The steps (8) include an undercut (11, 13). A drive (25) moves the movable bar unit (3) along a closed path of movement (21) being substantially elliptical.

Abstract: An apparatus for collecting and removing solid particles from a flowing fluid (5) includes a grid unit (6) including a plurality of stationary bars (1) being arranged to form a stationary bar unit (3). Each of the stationary bars (1) includes a plurality of steps (8). A plurality of movable bars (2) is arranged to form a movable bar unit (4). Each of the movable bars (2) includes a plurality of steps (8). The stationary bars (1) and the movable bars (2) are arranged side by side to alternate. A first parallelogram unit (11, 12, 13, 14, 17) is connected to stationary bearings (11, 12) to be pivotable in a plane about the pivot axes of the stationary bearings (11, 12) with respect to the stationary first bar unit (3). A second parallelogram unit (15, 16, 18, 19, 20, 21) is operatively connected to the first parallelogram unit and to the movable second bar unit (4).

Abstract: A device for removing deposited material from a liquid in flume includes a conveyor for the deposited material that is disposed at an ague with respect to the plume and leads to a discarding point. The device includes a housing which houses a shaft and a conveyor screw mounted to the shaft. The shaft includes a hollow portion therein for housing a heater. The heater heats the conveyor for preventing material from freezing in the conveyor.

Abstract: A device for removing material screened or filtered out of a liquid flowing in a channel (3), especially in waste water treatment plants, is described. The device comprises an unpowered cylindrical grating surface (8) being immersed partly in the liquid and being formed by a plurality of substantially semicircular grating bars (10) located with distance to each other. The device further comprises a removing beam (12) rotatably driven about the axis (2) of the grating surface (8) and having removing elements (15) extending between the grating bars (10) from the inside of the cylinder to the outside. A conveying device (17) for the material is provided which is positioned with respect to the grating surface (8) and leads to a point outside the liquid in the channel (3), the device having a tube-like housing (22) with an opening (23) for the entry of the material and a driven screw (20) inside the housing (22).

Abstract: A device for removing floating and suspended debris from a liquid flow passed through a liquid flow flume (3) is disclosed, the device including a separator (9) positioned within the liquid flow flume at an angle with respect to the flume and extending across the path of the liquid stream for collecting floating and suspended debris thereon. An elongated conveyor assembly (10) having an elongated tubular housing (20) with a first conveyor portion (11) and a second conveyor portion (12) is also provided as a part of the device. The first conveyor portion of the conveyor assembly is positioned within the separator and extends therefrom, the first portion of the conveyor assembly, as well as the conveyor assembly, being independently supported with respect to, and without being formed as a part of, the separator.

Abstract: A device for removing waste material screened or filtered out of liquid flowing through a channel (1) has a basket-type interceptor (6) that is slanted and cylindrical and that rotates subject to power, extends to some extent into the liquid, and has its upstream face (8) open and its downstream face (9) solid. A conveyor (13) is positioned coaxially in relation to the interceptor, leads to a waste-material deposit point outside the liquid, accommodates a powered conveyor screw (18), and has an intake scoop (15) in the vicinity of the interceptor for collecting the waste material. A mechanism positioned stationary above the intake scoop releases waste material from the interceptor. The interceptor consists of a number of continuous annular disks (8) distributed along the outer surface with gaps between them and the waste-material releasing mechanism is a raker-stripper (28) that at least to some extent extends through the gaps between the annular disks.