Liquid purification or separation – Filter – Vacuumized filtrate receiver
Patent
1997-01-03
1999-04-27
Popovics, Robert
Liquid purification or separation
Filter
Vacuumized filtrate receiver
2104161, 209246, 209910, B01D 2988
Patent
active
058977759
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention refers to waste treatment by aid of suction. At transport of waste of different kinds with aid of suction it is often used continuous suction, which certainly means a very large energy consumption, and which also means a need for big and expensive vacuum pumps. For intermittent transport it however also is required rather large and therefore expensive vacuum vessels and vacuum pumps, as the suction must be maintained during a time of several seconds, which means a need for a rather big volume of vacuum.
SUMMARY OF THE INVENTION
Primarily the invention refers to a vacuum accumulator by aid of which the size and capacity of required vacuum pumps and tanks can be reduced to a substantial degree with maintained extended suction time.
The invention furthermore includes a device intended for dewatering and removal of waste, e.g. food waste, produced in large-scale kitchens, in catering industry and the like and which device is connected e.g. in waste handling and/or waste sorting plants of different types and where the transport at least partly is carried out by aid of vacuum, e.g. created by aid of a vacuum accumulator according to the invention.
Hereinafter the invention will be further described with reference to an illustratory embodiment shown in the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows in a side view, and for the sake of clarity partly with hidden contours shown with dash lines, a device according to the invention.
FIG. 2 is a view of the device according to FIG. 1 seen from above.
FIG. 3 shows in an end view from the left hand side the device according to FIG. 1.
FIG. 4 is an end view in bigger scale seen from the opposite side as compared to FIG. 3 and with a vacuum conduit connected thereto.
FIG. 5 shows the device shown in FIG. 4 in a view from above.
FIG. 6 is a side view of the device in FIG. 4, with hidden contours intimated in dash lines, and
FIG. 7 illustrates schematically the design of a vacuum accumulator according to the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 1 shows in side view a device according to the invention incorporating a transport gutter 1, which can be constituted, e.g. by a conveyor or can be a portion thereof, and in which the material, primarily food waste, which shall be dewatered and transported away is supplied from the left hand side in the drawing. At the right hand side the gutter 1 opens in a collecting hopper 2, provided in a housing 3. The collecting hopper 2 has a cross section narrowing in a direction from above and downwards and its thus inclined walls 4 are wire walls, or walls otherwise designed for allowing liquid passage. At the lower part of the hopper 2 this is also provided with a bottom 5 which is liquid permeable and the interior portion above the bottom is connected to a duct 6, the function of which will be described in the following.
The bottom 5 in the collecting hopper 2 is situated at a level above the lower wall 7 of the housing 3, which in the embodiment shown in FIGS. 1 to 3 slopes towards the centre and one side, where a conduit 8 is connected for discharging liquid, which has drained off from the material collected in the collection hopper and passed the liquid permeable walls 4 and bottom 5 of the collecting hopper.
At a distance above the bottom 5 of the collection hopper there is provided a plate 9 designed as a pivotable valve, with a substantially horizontal pivot shaft 10 supported in the walls of the collecting hopper. This plate 9, acting as a rotary valve, is dimensioned to cover, in its horizontal normal position, the cross section of the collecting hopper 2 and thereby prevent material fed down into the collecting hopper from reaching the bottom 5 of the hopper. In the embodiment shown the plate 9 is pivotable by influence of an actuator 11, e.g. an air cylinder, an electric rotary actuator, or the like. This actuator 11 can be adapted to initiate pivoting of the plate 9 at certain time intervals under governing from a
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Abstract of GB 16 141, 1910, (Dassy, F.), column 2, line 12-line 19, see detail 6 in combination with a vacuumpump.
Centralsug SVS AB
Popovics Robert
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