DE4404396A1 - Container-type semi-liquid waste-disposal system - Google Patents

Abstract

The process for disposing of semi-liquid waste in containers is used wherever semi-liquid waste (slop) is found in relatively large quantities (large catering kitchens in hotels, restaurants, works canteens, etc.) and comparatively high investment costs are necessary due to the provision of structural facilities for installing and putting in place a commercially viable semi-liquid waste-disposal system. A further application example is constituted by large canteens which are only operated from time to time or large events over a number of days or weeks, but which, over this period of time, create a considerable amount of the semi-liquid waste and, correspondingly, have to dispose of the same. There is thus not only a requirement for minimum investment costs (structural outlay), but likewise a requirement for such a disposal system for semi-liquid waste to be mobile. The container-type construction of the semi-liquid waste-disposal system fulfils these objects in that all the installations are located within the container and are arranged such that the system, which involves introducing the semi-liquid waste and offloading it, can be operated entirely from the outside. In this arrangement, the slop is introduced, by the operator, in receptacles into the lateral introduction opening of the container. The transporting of the semi-liquid waste and the homogenization, comminution and circulation in the main store takes place automatically in the interior of the container. The offloading of the semi-liquid waste into a tanker is ... via an operator control panel which ... likewise in the outer wall of the ... Original abstract incomplete.

Description

The invention relates to a method for the disposal of wet waste (Drank, organic food waste) in container construction.

Wet waste, such as that found in commercial kitchens in the form of food scraps preparation, food return and stored food waste is incurred as commercial waste from the operator of the commercial kitchen be dissipated. Here, hygienic regulations must be observed Interim storage at the operator's are observed. The waste components, which are in the form of a liquid to solid phase, on the one hand must be put into interim storage and on the other others are pumpable that a promotion of wet waste possible in a tanker vehicle for proper removal is.

It is known to dispose of wet waste (drank) in a suitable plant dispose of, store temporarily and empty into a tanker with subsequent removal (see FR-PS 25 22 030).

In this system, the wet waste is via a feed trough in the free fall or pneumatically into a pressurized air Transport container transported, temporarily stored, circulated, crushed, homogenized and pneumatically into one Office waste filled container.

This system was further developed so that, for. Currently following different Variants are available:

• 1) Pre-shredding or coarse shredding takes place outside the hopper instead of. The shredder is between the feed tray and Delivery container arranged, and is in execution with transmitter station the shredder between the feed tray and the sending station or arranged on the side of the transmitter station.
• 2) Instead of pneumatic emptying into one with office waste filled container is a tank for waste separation kicked vehicle.

The delivery container does not necessarily have to be emptied with compressed air become. The wet waste can then by the vacuum pump Tank vehicle are sucked out of the container.

The decisive disadvantages of this system are on the one hand stationary use of the system. From the operator necessary on-site requirements are created (Breakthroughs, space requirements of the system in the kitchen area or in the underlying floor for the part of the system, for the Caching is required).

The creation of the structural conditions is special in the case the retrofitting of an existing building associated with a wet waste system at considerable cost, apart from of the space required within the building.

Furthermore, the known disposal system for temporary Use at major events is not an alternative because structural measures are not possible (e.g. Oktoberfest) or because of the low utilization of the system (a few weeks or Months of the year) economic operation is not possible.

The invention has for its object a waste disposal system to create for wet waste, the system components in one compact unit are summarized, above all can be set up outside of buildings that are not structural Requirements other than a footprint and the the requirement for mobility with common means of transport such as Truck and train is fair, without any previous assembly effort or disassembly to load the system.

This object is achieved in that all system components (Input funnel, conveyor with pre or downstream shredder, lockable transport pipeline from the conveyor to the main storage, homogenizer, Main storage, lockable tank line of the main storage with Coupling as well as the compressed air system and the electrical or pneumatic Control unit are installed in a standard container. There are all the necessary openings with doors for waste disposal as well as the coupling in the container walls. The standard doors of the container can therefore be locked remain because the input and tank opening for operating the Enough plant.  

This makes the wet waste disposal system available to the user posed independently of the existing structural Conditions outside the company building in the open Terrain can be placed. To operate the system is only a plug-in power supply line required.

Another advantage of the compact container design is that Standardization of the wet waste plant (dimensions). The investment of the operator is therefore limited to the pure delivery of the Investment.

Due to the mobile application of the wet waste disposal system can load the system filled with wet waste directly by truck and transported to the appropriate recycling facility and then be emptied.

The unloading of wet waste from the system into a tanker can therefore be omitted.

Short-term provision and limited to a few weeks Operations at large events or e.g. B. during renovation work to continue the provisional commercial kitchen business are due to the mobility of the wet waste system in container design only possible.

An embodiment of the invention is in the schematic drawing shown and is described in more detail below.

The diagram shows a wet waste disposal system in a container construction.

Wet waste (drank) is input into the input funnel 1 at various input openings A or B of the container 17 .

In the absence of an on-site ramp or pedestal, the upper hopper 1 embedded in the container ceiling can be filled by means of a lifting and tilting device which lifts and tips the waste container to the required height.

The wet waste then falls into the main storage by free fall.

The input hopper 1 embedded in the container side wall is filled manually by the operating personnel.

The feed hopper 1 is installed at working height.

The wet waste entered passes through the shredder 2 , which roughly shreds the bulky or firmer components (bones, vegetables, bread, etc.) into the conveyor device 3 . The conveyor works either on the principle of mechanical or pneumatic displacement.

In both cases, the conveyor 3 is closed on the output side by a gate valve 4 in order to prevent backflow of the wet waste in the transport pipeline 5 .

The mechanical displacement in the conveyor 3 can be carried out by a screw or a piston.

The pneumatic displacement usually takes place in an intermediate container with gate valves on the inlet side, which is pressurized when filled with compressed air and is then emptied by opening the gate valve 4 via the transport conduit 5 in the main memory. 6

The gate valve 4 is controlled as a function of the conveying movement, ie opened when the conveying is in progress and closed when the conveying process has ended.

The wet waste thus obtained in the main storage 6 is circulated at intervals with the homogenizer in order to prevent the solid and liquid phases from separating.

The wet waste that can be pumped is stored in the main store 6 and emptied into a tanker vehicle 18 via the unloading line 9 or fed directly to a plant for further use (biogas plant). The gate valve 8 is only open during the unloading of the main memory 6 .

The compressed air system consisting of compressor 11 and compressed air reservoir 12 supplies the control pressure for the slides 4, 8 and control valves as well as the delivery pressure for the delivery device 3 and for the emptying process of the main store 6 . The unloading 9 of the main store 6 can also be carried out without pressurization if the tanker vehicle has appropriate vacuum pumps.

The gases produced during the fermentation process or during the conveying process into the main storage 6 escape through a vent line 14 through the containers to the outside (exhaust hood 15 ).

Claims (4)

1.Procedure / system for the disposal of wet waste (drank, organic food waste) in a container construction characterized in that all system components are installed in a commercially available portable container. 2. The method according to claim 1, characterized in that the container system is also possible in a modular design, that is, that the system components required for the refuse input and, if appropriate, waste disposal are set up in a separate container and the system parts belonging to the main storage and homogenization in a second container are installed.
The containers are connected to each other by a rigid or flexible waste transport line. 3. The method according to claim 1, characterized in that the Wet waste can be entered directly into the main memory, by means of installed outside or inside the container Lift-tilt device (filling funnel is on the main storage arranged), and / or that the wet waste indirectly in the Main memory can be entered using a conveyor with upstream shredder and lockable pipeline from the conveyor to the main storage. 4. Procedure for transporting from the operator side of the container entered wet waste marked in the main memory in that the wet waste by mechanical and / or pneumatic Displacement via a lockable transport pipeline is promoted.