DE2319081B1

DE2319081B1 - Dump plate - for composting plant

Info

Publication number: DE2319081B1
Application number: DE19732319081
Authority: DE
Inventors: Hans; Schertier Hans; 7920 Heidenheim Hofmann
Original assignee: Voith-Müllex GmbH, 7920 Heidenheim
Priority date: 1973-04-16
Filing date: 1973-04-16
Publication date: 1973-12-06
Also published as: DE2319081A1

Abstract

In a dump plate for a composting plant of the type having >=1 piping system welded in connected to and able to be shut off from an air compression- or suction-producing device, for aerating or de-aerating and for carrying away ground water from the heap of waste, a ground water discharge pipe runs from the lowest part of the piping system into a lower lying waste pipe with formation of a siphon like collector, the effective pressure head of which is greater than the max. pressure applied by the compressor.

Description

Zwischen zwei in F i g. 1 nur in ihren Randbereichen dargestellten Schüttplatten 4 und §, die je durch Mauern 6 abgegrenzt sind, ist ein Abwasserkanal 7 angeordnet. Wie in dieser Figur nur bei der Schüttplatte 5 zu erkennen, sind in diesen mittels Holzbohlen 8 abgedeckte Kanäle9 angeordnet. Die Holzbohlen 8 liegen auf Querträgern 8' auf, und zwischen den Kanalrändern und den Holzbohlen 8 sind Schlitze 10 belassen (F i g. 2)> durch welche aus der Materialschüttung 20 austretende Flüssigkeit in den Kanal 9 abfließt. Aus dem Kanal 9 gelangt die Flüssigkeit über ein rohrförmiges Anschlußstück 12 in ein Sammelleitungsstück 13, in das mehrere im Abstand nebeneinander angeordnete Kanäle 9 eines Plattenbereiches einmünden, wie es in F i g. 3 für die Platte 4 dargestellt ist. Von diesem Sammelleitungsstück 13 führt schräg nach unten ein Sickerwasserableitungsrohr 14 in den Abwasserkanal7, in dessen Bodenbereich sie mündet. Wie nur aus F i g. 3 zu erkennen, ist am tieferliegenden Ende des ein Gefälle aufweisenden Abwasserkanals 7 ein in seiner Höhe verstellbarer Überfauf 15 angeordnet, wodurch sich der Between two in FIG. 1 shown only in their edge areas Schüttplatten 4 and §, which are each delimited by walls 6, is a sewer 7 arranged. As can only be seen in this figure in the case of the pouring plate 5, in these channels 9 covered by wooden planks 8 arranged. The wooden planks 8 lie on cross members 8 ', and between the channel edges and the wooden planks 8 are Leave slots 10 (FIG. 2), through which slots emerge from the bed of material 20 Liquid flows into the channel 9. The liquid passes over from the channel 9 a tubular connector 12 in a manifold piece 13, in which several Channels 9 of a plate area arranged at a distance from one another open out, as shown in FIG. 3 for the plate 4 is shown. From this manifold piece 13 a seepage water discharge pipe 14 leads diagonally downwards into the sewer 7, in the bottom area it opens. As only from Fig. 3 can be recognized by the lower part The end of the sewer 7, which has a gradient, is adjustable in height Overfauf 15 arranged, whereby the

Wasserspiegel- 16 einstellt. Das in dem Abwasserableitungsrohr 14 und im Kanal 7 angestaute Wasser bildet eine siphonartige Vorlage mit der gegen einen Über- oder Unterdruck wirksamen Höhe h. Über eine an ein nicht dargestelltes Gebläse angeschlossene Lüftungshauptleitung 17, die durch die Zweigleitung 18 mit Klappenverschluß 19 mit der Sammel- leitung 13 verbunden ist, wird in den Kanälen 9 ein Luftüber- oder -unterdruck aufgebaut, mittels welchem die Belüftung des aufgeschütteten Materials 20 erfolgt. Auf den Mauern 6 sind Schienen 21 für einen hier nicht dargestellten Koordinatenaustrag für das Material angeordnet. Pfeil9' deutet die Richtung des Gefälles des Kanals 9 an.Water level 16 adjusts. That in the sewer discharge pipe 14 and water accumulated in the channel 7 forms a siphon-like template with the opposite an effective overpressure or underpressure height h. About one to one not shown Fan connected ventilation main line 17, which through the branch line 18 with Flap lock 19 with the collecting line 13 is connected, is in the channels 9 an overpressure or underpressure built up, by means of which the ventilation of the heaped up Material 20 takes place. On the walls 6 are rails 21 for a not shown here Coordinate output arranged for the material. Arrow9 'indicates the direction of the Slope of channel 9.

Claims

Claims: 1. Filling plate for composting plants with at least one embedded in the plate, attached to a positive or negative air pressure generator connected pipe system that can be shut off from this for ventilation the bed and for discharging seepage water, characterized in that from lowest point of the pipe system (9, 12, 13) a seepage water drainage pipe (14) with the formation of a siphon-like template into a lower-lying sewage pipe (7) leads and the effective pressure head of the siphon-like template is greater than that of the Pressure generator is maximum applied pressure.

2. pouring plate according to claim, characterized in that the sewer pipe (7) as a channel with an overflow (15) which forms a permanent water level the discharge side is formed and the seepage water discharge pipe (14) below of the water level (16) opens into the channel (7).

The invention relates to a pouring plate for composting plants with at least one embedded in the plate, connected to an overpressure or underpressure generator connected and lockable pipe system for loading and unloading.

Venting of the bed and for draining off seepage water.

On such bulk plates z. B. processed, d. H. crushed and sieved municipal waste including admixture and partially drained municipal sludge heaped up for composting, whereby the residence time of the processed waste mixture on the plate can be up to several months. During this time that will Material depending on its particular nature in a certain way ventilated and, if necessary, watered. Precipitation, such as rain or snow, and the degradation water that arises during composting - if it does not come from the Warming is expelled as water vapor - must be captured and discharged. If to discharge this water and for artificial ventilation via a fan (bubbles or suction) the same channels arranged in the plate can be used, e.g. Channels according to German Patent 1: 582 then it is necessary while the ventilation periods to close the channels for the water drainage, otherwise it would not is possible to build up a defined pressure or negative pressure and in particular the energy losses become far too great. In addition, the ventilation should be zoned, i. H. can be switched off for certain parts of the surface of the plate or, if necessary, also with regard to the pressure can be set differently.

However, this requires that the water discharge in the same way zonewise can be shut off, which makes an extremely large number of gate valves necessary and overall results in a very complicated control system.

The invention is based on the object of a pouring plate to take precautions of the kind described, which despite simultaneous use the same lines for ventilation and drainage purposes with the most economical use of branch organs a zone-wise shut-off or pressure control of the artificial ones Allow ventilation without draining the water during the ventilation periods must be interrupted, regardless of the respective amount of the in the water in the pipes.

The invention solves the problem in that from the lowest point of the Piping system a seepage water drainage pipe with the formation of a siphon-like Submission leads into a lower-lying sewage pipe and the effective pressure head the siphon-like template greater than the maximum applicable air over or. negative pressure is. In a preferred embodiment, the sewer line is used as a channel an overflow that forms a permanent water level is formed on the discharge side, and the seepage water discharge pipe opens into the channel below the water level.

So it forms the seepage water drainage pipe together with the dammed channel the siphon-like template. The effective pressure depends on the altitude of the water level above the mouth of the seepage water drainage rook. If the overflow height is designed to be controllable, then this can be effective counter pressure can be set. In any case, it should be greater than the positive or negative pressure artificial ventilation. In such a system according to the invention can Ventilation and drainage take place at the same time, without the need for complex shut-off devices are required for the water and without energy from leaks in the ventilation get lost.

The invention is illustrated below in an exemplary embodiment the drawing explained in more detail. 1 shows a cross section through a pouring plate with a device according to the invention, Figure 2 is a section along the line II-II of Fig.lund Fig.3 is a perspective view, partially in section, of the device according to the invention.