Presses – Methods – With separation from material of liquid expressed
Patent
1996-11-26
1999-01-12
Gerrity, Stephen F.
Presses
Methods
With separation from material of liquid expressed
100117, 100127, 100145, B30B 914
Patent
active
058574050
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to an apparatus for separating solid matter from a liquid which contains solid matter, the apparatus having a rotatably driven conveyor spiral or the like which, at least in part regions, is disposed in a screen casing or jacket which corresponds to the outer contour of the conveyor spiral or the like, and which, with one end protrudes into a container filled with liquid, for example a gutter and which, at its opposing end, displays a discharger via which the discharged solid matter may be supplied to a transport container, a sack filling machine or the like.
BACKGROUND AND PRIOR ART
Apparatuses of this type are known in the art. For example, screen screws with integrated screening presses are already known in the art. A conveyor spiral or helix is, in such instance, disposed in a cylindrical screen jacket which, with its one end, terminates in a gutter in which flows a liquid carrying solid matter, the solid matter being separated from the liquid by means of the screen casing or jacket and being removed via the conveyor spiral. This known screen screw features a drive motor disposed at that end opposite the channel and by means of which the conveyor spiral is driven. A press for screenings is disposed between the end of the conveyor spiral and the drive motor and is provided with a downstream discharger.
Consequently, this prior art screening screw with integrated press for screenings is disposed in a gutter which is subject to through flow by waste water. In this instance, the screen surface retains floating and semi-suspended matter, as well as heavier matter in the waste water, these matter fractions being discharged by the conveyor spiral in connection with the screen surface. To this end, the conveyor spiral is disposed at an angle which slopes relative to the horizontal, whereby the conveyor spiral, at that end which is opposite the gutter, reaches a predetermined height in relation to ground level. This makes it possible to dispose a receptacle container or a sack filling machine under the downwardly directed discharger. The discharged solid matter can be taken care of by means of the receptacle container or sack filler machine, i.e. further transport may be put into effect. Discharge of the solid matter which is compressed in the screening press takes place in that the continuously supplied solid matter reaches a pressure in the screening press, whereby the solid matter fractions which are disposed in the region of the discharger are pressed out and, by force of gravity, fall down into the sack filling machine, transport or landfill container.
One disadvantage inherent in this prior art apparatus is that, as a result of a limited angle of inclination for the conveyor spiral, a long conveyor path is required in order to achieve sufficient height for the discharger so as to make possible the provision of the sack filling machine or suitable receptacle containers, respectively, beneath the discharger. As a result, these apparatuses, because of their longitudinal extent, take up considerable space, for which reason such apparatuses may only be disposed in correspondingly dimensioned buildings.
SUMMARY OF THE INVENTION
Using this state of the art as a point of departure, the object of the present invention is to improve an apparatus of this type so that it features a shorter construction length and, at the same time, makes for improved discharge of solid matter, laterally or upwardly.
The solution to this problem is obtained for an apparatus of this type, in that a rotatably driven discharge device is disposed in the end region of the spiral conveyor path, or precisely after this path, in order to discharge the solid matter laterally, i.e. substantially tangentially to the transport spiral. The discharge device consists of a substantially cylindrical shaft and at least one discharge element radially disposed thereto, by means of which the solid matter which is compressed in the compression zone is substantially conveyed radially to the conveyo
REFERENCES:
patent: 3319897 (1967-05-01), Craig et al.
patent: 4212239 (1980-07-01), Fraula et al.
patent: 4859322 (1989-08-01), Huber
patent: 5078865 (1992-01-01), Huber
patent: 5110461 (1992-05-01), Abel
Patent Abstracts of Japan, vol. 15, No. 85, m-1087, abstract of JP,A,2-303699 (Fujitsu General Ltd), Dec. 17, 1990.
Gerrity Stephen F.
Spirac Engineering Aktiebolag
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