Liquid purification or separation – Filter – Movable medium
Patent
1994-09-01
1996-03-19
Upton, Christopher
Liquid purification or separation
Filter
Movable medium
210396, 210398, 210403, B01D 3311
Patent
active
055001149
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a separator device for separating solid material from liquid.
SUMMARY OF THE INVENTION
An object of the invention is to provide such a separator device in an improved manner.
According to the invention a separator for separating solid material from liquid comprises a casing having separate respective solid material and liquid outlets therefrom, a drum rotatable within the casing through which liquid can flow, in use, to said liquid outlet, means within the drum for moving said solid material within the drum, as it rotates in use, towards an outlet therefrom where it passes to said solid material outlet of the casing, said means for moving said solid material being supported for at least part of the length thereof at the outer periphery thereof and for at least part of the length thereof at the inner periphery thereof, an inlet member for supplying a mixture of said solid material and said liquid into the drum, and one end of the drum and/or said inlet member having a journal received in a bearing outside of one end of the casing, at the other end of which the drum and/or the inlet member is or are rotatably driven, in use.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described, by way of example only, with reference to the accompanying drawings, in which:
FIG. 1 is a longitudinal section through a separator of the invention;
FIGS. 2 and 3 are sectional views on the lines II--II and III--III respectively in FIG. 1, to a larger scale; and
FIG. 4 is a view in the form of FIG. 1 of a further embodiment of a separator of the invention.
DETAILED DESCRIPTION
The drawings show a separator device which is particularly intended for use with sewage and the like and is generally known as a screen.
The screen of FIGS. 1 to 3 has an outer casing 10 made up of an upper removable cover part 11 which is fixed to longitudinal side parts 12, 13 respectively. The two side parts connect together at the bottom of the screen, the casing being closed along most of its lower part but having a liquid outlet 14 at one end and a solid material outlet 15 at its opposite end. As can be seen from FIG. 1, the casing slopes downwardly from the outlet 15 to the outlet 14, so that, as will be described, separated liquid drains to said outlet 14 where it is removed from the screen. The transverse cross-sectional shape of the casing can be seen from FIGS. 2 and 3.
At the end of the casing adjacent the outlet 14, there is a composite end plate assembly 16 which carries a support housing 17. This has a central opening in which is received radial and thrust bearings 18 which carry a journal 19 which extends from an end of a drum 20, which is disposed in the casing 10 as will be described. The journal 19 extends from the housing 17 away from the casing to a position where it is connected via a flexible coupling 21 to a drive unit 22 for rotating the journal 19 and thus the drum 20.
The drum 20, has its central axis at the same inclination as the casing 10 previously described. At its end where it is driven, the drum is closed by a circular end plate 23, from which the journal 19 extends. Centrally connected inwards of this plate 23 is a cylindrical ring 24. Connected to the ring 24 and extending longitudinally therefrom in an inwards direction away from the plate 23 are three rigid drum body members 25, each member 25 extending parallel to the axis of the drum defined by the centre of the plate 23, the members 25 being equi-angularly spaced around the ring 24 and thus the drum itself. As can be seen from FIG. 2, each member 25 comprises a short arcuate portion 26 of substantially the same radius as the ring 24 from which perpendicularly extends a rib part 27. Extending longitudinally from the ring 24 between the members 25 respectively are three mesh panels 28, shown in FIG. 2. These mesh panels are each of arcuate form and together with the arcuate portions 26 of the members 25 form the circular drum 20 which has a diameter substantially corr
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Pittwood Arthur S.
Potter Michael S.
Managed Pollution Systems Limited
Upton Christopher
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