DE2206486A1 - METHOD OF TREATMENT OF MUELL AND / OR SLUDGE AND INSTALLATION FOR CARRYING OUT THE PROCEDURE - Google Patents

Description

Patent attorneys

Dipl. Ing. KL «V / ostphal 2Z06486

Dr.rer.nat. Otto Buchner
773 Vülingon / Black Forest
Karlsruher Strasse 13

RichP-rd_ EJe. el in, Buochs

Procedure zxva handling of fcai.ll and / or Schl9.mm and the system for carrying out the procedure

The present patent relates to a method of treating von Oll lind / or Schlamm as well as an installation for the implementation; of the procedure ο

There are "already known systems for treating tulle and / or sludge in which the in one or more treatment chambers exploiting Dende Behandlunggut intermittently in one direction or ^in: // is not possible echselrichtung v.'ird vented, and a continuous Ärbeitsablauf. Furthermore, in all of these systems, a continuous flow of the material to be treated is not possible; the material to be treated is filled into the treatment chamber with the aid of an excavator or conveyor belt and after the biological process has ended

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Dismantling in a similar manner by mechanical devices again avisgebaggert, v, 's is very cumbersome and takes a lot of time claimed.

The purpose of the invention is to create a method that does not have the tile parts listed above.

The inventive method is characterized in, one -da.ss the material to be treated from the top of a treatment: - ^{the first-chamber} fills, after which the material to be treated by the .vandtir.g S'eiten-continuously a treatment chamber forth to the opposite side wall of the latter with at least one gas or gas mixture stream supporting the biological degradation process, and the treated material discharges at the bottom of the treatment chamber, so that an automatic throughput of the gas to be treated in a vertical direction from top to bottom the treatment chamber takes place through it.

It's zv / square if you put it in the treatment room located goods continuously with several one above the other in at least approximately horizontal direction Gas or gas mixture flows interspersed. It is advantageous if the upper and lower areas of the in the The goods located in the treatment chamber are interspersed with a smaller amount of gas or gas mixture than the medium area.

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It is also useful to use the gas or gas mixture by means of at least one pressure fan on one side wall of the handling chamber in the treatment chamber Well conveyed in and sucked off by means of at least one suction fan on the opposite side wall.

The invention also relates to a system for carrying out the method according to the invention, which is characterized is that they have at least one treatment chamber for receiving the material to be treated, at least one fan for passing at least one gas or gas mixture flow through the material to be treated, from one side wall of the treatment chamber to the opposite one Side wall of the latter, and arranged on the underside of the treatment chamber Auctragmittel for discharging the treated good.

For the simplest possible arrangement and design of all parts, it is useful if the treatment chamber is circular is trained·

For ease and effective regulation, it is advantageous if the swing blending streams to initiate or extraction of the gas or formed in side walls of the Behandlunrskamnier provided with several inlet or Ab Säugöffnungen üeroichc divided and diekg areas from each other with at least one ubnr LurnhfliifiKrof'ulierorro.no 3 0 9807/1150

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Pressure "or suction fan connected bind.

In order to be able to remove the material emerging from the air collection chambers through the ventilation openings in the side walls of the treatment chamber, it is useful if the side walls used _{for the introduction or for the introduction and suction of the gas or gas mixture flows are designed as double walls,} the interior of which can be subdivided into individual chambers by adjustable separating means, and that on the side of the double wall facing away from the treatment chamber the side wall areas corresponding to the individual chambers are separated from one another via flow regulating elements with at least one pressure or Suction fans are connected

When using an annular treatment chamber, it is advantageous if the adjustable separating means are inflatable Tubing can be formed.

The invention is explained below with reference to the drawing, for example explained. Show it:

Fig. 1 shows a cross section through an exemplary embodiment a system according to the invention;

FIG. 2 is a plan view of the installation shown in FIG. 1;

Figo 3 in cross section a second exemplary embodiment

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shape of a part of a system according to the invention;

FIG. 4 is a side view of the part shown in FIG. 3;

5 shows a section through the treatment chamber of a third exemplary embodiment of an inventive System; and

6 shows a section through the treatment chamber of a fourth exemplary embodiment of a gate according to the invention System.

In the system shown in Figures 1 and 2, the household waste, the liquid and the thick sludge with appropriate Means of transport brought into bunkers 1, 2 and 3.

The pressed raw waste is discharged with the aid of the plate conveyor 4 onto a collecting conveyor belt 5 and a shredding machine 6, which takes over the loosening of the pressed raw waste bales, which is necessary for the processing of the waste. Before the casing to be treated reaches the textile cutter 8 with the aid of the conveyor belt 7 from the tearing machine 6, a first iron sorting is carried out by a band magnet. The textile cutter 8 cuts long textiles in short pieces. The raw waste falls in the vertical direction through the textile cutter 8, with the cutter bar

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rotate the latter horizontally. Above that from the textile tailor 8 to the garbage mill 9 running conveyor belt IO is a second Iron separation arrangement 11 arranged.

In the garbage grinder 9, the garbage is mixed with continuous throughput and automatic rasp residue emptying, grated and dispensed with a grain size of approximately 45 to 50 mm. Solids like glass, stones etc. are made with the help -A separator 12 separated from the rotting waste.

Subsequently, the rotting rubbish is taken from a screw press

13 supplied, in which the sludge is added in dosed quantities to the ground garbage. The screw press 13 mixes the mud intimately with the garbage. The garbage-sludge mixture obtained in this way is transported with the aid of a vertical conveyor

14 and a rotary distributor 15 are evenly and continuously filled into the annular treatment chamber 16 from above.

The treatment chamber 16 has, for example, a mean diameter of 72 m, a clear width of 4 m and a usable filling height of 7 m, i.e. a usable capacity of approximately 6200 m. j

The treatment chamber 16 is divided along its circumference into 12 chamber sections, each 30 ° arc length, whereby * overhaul work on one of the chamber sections without loading

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interruption of operation of the entire system are possible.

Seen over the circumference of the treatment chamber 16 are -oro Treatment chamber section on the radially inwardly and outwardly directed side wall 17 and 18, respectively eight and three on top of each other, that is to say in the whole forty-eight separate, with inlet and Areas 19 and 20 provided with suction openings are provided.

The compressed air supply areas 19 are each via a controllable servo valve 21 with a pressure blower 22 and the suction areas 20 are each connected to a suction fan 24 via a controllable servo valve 23.

Thanks to the horizontal division into three zones and the further subdivision of the ventilation flows into horizontal ones Direction in eight substreams per treatment chamber section of 30, the desired temperature in the to be treated Well, seen over the entire volume, can be kept constant within relatively narrow limits.

In the uppermost, horizontal zone, there is a relatively weak pre-aeration of the material to be treated Initiation of the biodegradation process. The middle The horizontal zone forms the pasteurization zone with a temperature of 75 to 85 ° C. This is where the The highest air throughput is required, as the largest in your zone

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biological activity takes place. The control of the amount of air flowing through the material to be treated is in this Zone is particularly important, so that on the one hand pasteurization is guaranteed and on the other hand a charring of the to be treated Good things are avoided as a result of excessively high temperatures.

In the lowest, horizontal zone, there is again a relatively weak ventilation of the area to be treated A good thing, because in this zone the biological degradation is already subsiding again.

Should the item to be treated be put in the treatment chamber once 16 come to a standstill and do not slide down, then it is also possible to use those with inlet and / or suction openings to switch provided areas 19 or 20 so that a downward pressure is exerted on the item to be treated, by only the top row of the inlet areas 19 and only the bottom row of the suction areas 20 in operation is taken so that an oblique downward air flow arises

After about 14 days in the treatment chamber 16, the treated material reaches the lower end of the treatment chamber 16 as ripened compost earth and is carried there with the help of Kratawalaon 42 into a circular ring-shaped chamber, where a liund-irottonkratsor die

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discharged compost earth into a central outlet opening 26 pushes, from v / o a further conveyor belt 27 feeds this to a brush screen 28, which is still all due, present, not removes rotable components

Instead of ordinary air, to reduce the volume to be conveyed by the fans 22 and 24, a Oxygen-enriched air mixture or pure oxygen is used as the satire content is used for biological degradation rna.givend istο

Instead of an annular treatment chamber, as can be seen from FIGS. 3 and 4, a cuboid treatment chamber 16 'can also be used. Here, too, the material to be treated is continuously ventilated in the horizontal direction, and the material to be treated is moved from top to bottom in vertical lease through the handling chamber 16 'and discharged on the underside of the latter. Areas 19 'provided with inlet openings are provided on one side wall for supplying compressed air into the material to be treated and on the opposite side wall areas 2C provided with suction openings for sucking off the air consumed by the biological process.

As it is, for example, when sucking out the stale air dom to be treated it may well be possible that the latter * ", ofcv / as passes through the Ab ί>? - · .ιι ^ openings, it can sweck-

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BATH ORIGINAL

Be massive if the 3handlur_ £? ska.mmer of the system shown in Figures 1 and 2, as shown in Figure 5 , formed. This treatment chamber 29 has a side wall designed for suction of the used air from the material to be treated. ndunrr has the shape of a double wall 30, the interior of which can be divided into individual chambers 32, 33 and subdivided by inflatable tubes 31 running horizontally. On the side of the double wall 30 facing away from the container 29, the side wall areas assigned to the individual chambers 32, 33 and 34 and provided with suction openings are separated from one another via the collecting chambers 35, 36 and 37 and the flow regulating organs 38, 39 and 40 connected to a ^r inem suction fan. The opposite side of the treatment can of course be designed in exactly the same way,

During normal operation of the system with three ventilation zones running one above the other, the hoses 31 are inflated and lie tightly against the side of the double wall 30 facing the treatment chamber 29. When the material to be treated has now passed from the storage chamber 29 into the kairimers 32, 33 and 34, the hoses 31 can be emptied and grounded before they release a horizontally extending cross section through which the material can fall out downwards. These hoses 31 sir.d. can of course also be used to control ventilation by adding zx \ xa

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Example by releasing the pressure in a hose 31, the two chambers 32 and 33 located next to one another can be connected to each other. To ensure even loading and emptying of the circular treatment chamber 29 to achieve it is also possible, as shown, the treatment chamber 29 by means of a bearing 41 around their The central axis can be rotated so that the loading and unloading stations can remain stationary »

In the case of a cuboid treatment chamber, as can be seen from FIG. 6, instead of the hoses 31 in FIG Flaps 42 have been used because these do not present any constructional difficulties due to a curved container wall.

The used air is in all of these systems to avoid odor nuisance as can be seen in Figure 2, fed to an earth filter 43.

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Claims (1)

PATE N TA N SPRAYGHE Method for treating garbage and / or sludge, characterized in that the "to be treated." Well filled from above into a treatment chamber, then the material to be treated continuously from the one side wall of the treatment chamber towards the opposite side wall of the latter with at least one the biological Abbati process supporting gas or gas mixture flow penetrated, and on the underside of the treatment chamber the treated Well discharges, so that an automatic throughput of the goods to be treated in vertical Direction from top to bottom through the treatment karamer. 2. The method according to claim 1, characterized in that that one is in the treatment chamber Well continuous with several one above the other in at least an approximately horizontal direction Gas or gas mixture stream permeated. 3. The method according to claim 2, characterized in that the upper and lower regions of the in the treatment chamber with a 309807/1 1 50 lower gas or gas mixture amount penetrated than the middle area. 4ο method according to claim 1, characterized in that that one to support the biodegradation process an oxygen-containing gas mixture, such as air, or pure oxygen through the to treating good heads. 5. The method according to claim 1, characterized in that that you fill the material to be treated continuously into the treatment chamber and at the bottom of the Treatment chamber continuously discharges the treated material. 6 · Process according to one or more of the preceding Claims, characterized in that the gas or. Gas mixture by means of at least one pressure fan on one side wall of the treatment chamber into the material to be treated and conveyed by means of at least one suction fan on the opposite side wall 7. The method according to claim 1, characterized in that one passed through the item to be treated - Gas or gas mixture after its exit from .dem the latter feeds an earth filter. 309807/1150 8. Plant for performing the method according to one or more of the preceding claims, characterized characterized in that the at least one treatment chamber (16) for receiving the goods to be treated, at least one fan (22, 24) for passing at least one gas or gas mixture flow through the Items to be treated, from one side wall of the treatment chamber (16) to the opposite one Side wall of the latter, and discharge means arranged on the underside of the treatment chamber (16) (42) for discharging the treated material, has β • · 9 · Plant according to claim 8, characterized in that the treatment chamber (16) has an annular shape having. 10. Plant according to claim 91, characterized in that the annular treatment chamber (16) is divided into individual sections along its circumference. 11 · Plant according to claim 8, characterized in that the for the introduction or · suction of the gas or gas mixture flows formed side walls of the treatment chamber (16) into several with inlet or suction openings 309807/1150 provided areas (19, 20) divided and these areas separated from one another via flow regulating members (21,23) are connected to at least one pressure or suction fan (22,24). 12 »Plant according to claim 11, characterized in that those for introducing or sucking off the gas or gas mixture streams Serving side walls are designed as double walls, the interior of which by partition walls (43) is divided into individual chambers (Figure 3) 13 · Plant according to claim 11, characterized in that the. To the introduction or the to the introduction and the The side walls serving for suction of the gas or gas mixture flows are designed as double walls (30) whose interior can be divided into individual chambers (35,36,37) by adjustable separating means (3I, 42), and that on the side of the double wall (30) facing away from the treatment chamber (29) the individual chambers (35,36,37) corresponding side wall areas separated from one another via flow regulating elements (38, 39,40) are connected to at least one pressure or suction fan. 14, plant according to claim 13, characterized in that the rollable release agents by inflatable ones 309 807/1150 Tubes (31) are formed. 15. Plant according to claim 13 »characterized in that the adjustable separating means are formed by flaps (42) 16. Plant according to claim 9 »characterized in that the annular treatment chamber (16 ·) around its The central axis is rotatably mounted 17o system according to claim δ, characterized in that the openings serving for the exit of the gas or gas mixture from the treatment chamber (16) one side wall are connected to an earth filter (43) via at least one line 18. Plant according to claim 9 »characterized in that rotatable around the central axis of the annular treatment chamber (16), from the central axis to the treatment chamber (16) reaching distribution means (15) for distributing the shell or r.Iüll-Schlamm.eemisches of the center axis is provided in the treatment canister (16) are. 309807/1150