Presses – Concurrent pressing and conveying – Moving compression chamber
Patent
1993-11-05
1995-02-07
Gerrity, Stephen F.
Presses
Concurrent pressing and conveying
Moving compression chamber
100229A, 220908, 41452555, B30B 500
Patent
active
053867700
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to an installation for compacting waste comprising a rotary element which is fitted in a chamber having an inlet and an outlet. The rotary element can move along a wall of the chamber in order to define a space which decreases in the direction of movement of the element. Such an installation is known from the German Offenlegungsschrift 2,312,698. Articles to be compacted are introduced through an entry hopper in the space which is defined by the wall and the rotating drum. The rotating drum includes partition which grasp the articles to be compacted and transport them whilst compacting to the outlet of the installation.
It has been observed that the path over which the waste is compacted is relatively short and that the material is not sufficiently compacted.
SUMMARY OF THE INVENTION
The invention aims to avoid this disadvantage by increasing the path over which the waste compacted.
This aim is achieved with an installation having an inlet which is closable in such a way that it forms part of the wall. By having the inlet closable the path over which the waste is compacted is increased and material is prevented from being pressed back towards the inlet during the first part of travel over the compacting path.
According to an advantageous embodiment of the invention, the part of the wall in the direction of rotation of the element upstream of the outlet is fitted so that it is movable against a pretensioning force. This signifies that if no further compacting can take place in the space limited by the wall of the chamber and the partitions without overloading of the system, the relevant section of the wall moves away because no further compacting takes place. A design of this type is important in particular if waste of highly variable composition is introduced.
In order to prevent material adhering to the drum of the partition pump, scrapers are preferably present downstream of the outlet for the part of the wall in the direction of rotation.
According to a further advantageous embodiment, the chamber in which the partition pump ks fitted is cylindrical and the center of rotation of the partitions is in the center of the cylinder.
In order to prevent contamination of the interior of the partition drum, sealing means, which engage on the partitions, are fitted thereon.
The partition drum described above can be driven in various ways. Both a motor and a manual drive are conceivable. In the case of a motor drive, At ks possible always to stop the partition pump in a position such that the partitions are in the optimum position in front of the inlet and outlet. This is also possible in the case of a manually operated partition pump. This can be achieved by fitting an element which is graspable only in a specific number of positions and which can be grasped by means of a handle which can move over a limited stroke.
The invention also relates to a waste assembly, comprising an installation as described above, located on a waste container. In this way, a particularly compact structure is obtained, it being possible to make use of conventional waste containers, so that the costs of the assembly can be kept defined. Easy emptying is also ensured by this means.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be illustrated in more detail below with reference to the embodiments shown in the drawings, wherein:
FIG. 1 shows a side view of the waste assembly according to the invention;
FIG. 2 shows a detail of the installation according to FIG. 1;
FIG. 3 shows the operating mechanism for the partition pump in two embodiments according to the invention;
FIG. 4 shows a detail of an embodiment of an operating mechanism according to FIG. 3; and
FIG. 5 shows the cross-section V--V from FIG. 3.
DETAILED DESCRIPTION OF THE INVENTION
In FIG. 1 the waste assembly according to the invention is generally indicated by 1. This waste assembly consists of a conventional waste container 2. Here this is designated as the lower part of a container with wheels, that is to say
REFERENCES:
patent: 1333051 (1920-03-01), Young
patent: 3076250 (1963-02-01), Baer
patent: 3593656 (1971-07-01), Churchman et al.
patent: 3889588 (1975-06-01), Wollersheim
patent: 4102109 (1978-07-01), Modra et al.
patent: 4271756 (1981-06-01), Bettencourt
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