DE2810911C2 - Process for composting waste materials - Google Patents

Description

: 3 4

their embodiment, which roughly corresponds to the line II-II in For the production of several superimposed

■ ·; F i g. 1 follows; the compost layers K \, K ₂ etc., the soil

£ F i g. 3 of the - following the right side of the stand h of the conveyor 40 with the mechanical,

'F i g. 2 - continued cut through a composting hydraulically or pneumatically operated telescopic column

system. 5 len 32 set in the area of the side by those

A plant for processing and composting bottom edges 44 of the bottom plates 43 limited

According to a weighbridge 1 at the reception 45 of the conveying device 40 arises in

Pick-up point A houses a deep bureau 2. Above this is a cone of material with scraping

-; a crane 3 is provided, which rubbish M ₅ batches edge / n 46 of the conveyor 40 smoothed upper

r; feeds from the deep bunker 2 to a dosing silo 4. Of io area.

β this gets the garbage M ₅ on a conveyor belt 5 and at the two bottom edges 44 can electrical

a metering device 6 to a hammer mill 7. level control members 47 are provided, which the

U The crushed in the hammer mill 7 garbage Mwird monitor the conveying process and the chassis of the

p- give a pulse on a trough chain conveyor 8 to a Magnetab- conveyor or gangway B, if

| ϊ separator 9 brought, on the one hand disengaged 15, those shift by the width of the conveyor 42

f§ scrap 5 to a scrap press 10 and on the other hand the should to prepare a new compost strip. In

U now scrap-free - with the underflow U of a clarification- this way you can compost areas of about 28 m

Mud basin 11 merged - garbage M in width and 100 m in length are produced.

a rotary drum 12 delivers in FIG. 2 is when comparing the composting hall segments. At the discharge 13 of the rotating drum 12 there is a 20 17c; 17a, 17fc the process for the production of a grain separation of the raw compost K from coarse sieve residues post rent W from several layers α «Γ layers Ki, K ₂ R; the latter carries another Tragkettefördercr 14 zn etc. to be seen.

a remaining sieve bunker 15. Above the compost pile W , the raw compost K is transported on a feeder 16 to the conveying direction χ or to the conveying device 40 to the depot area 17 of a composting area or 25 suction ducts 50, which are brought to an air network of a composting hall, the m F i g. 1 at H in Drauf- are connected; the latter is shown in FIG. 2, 3 and line view indicated, dotted double lines 51 are indicated and with fans

The depot area 17 is in the for F i g. 1 selected 52 connected.

Example in the feed direction ζ in three fields or through the composting hall segments 17 »17 * in the composting hall H. 17 _C subdivided, each 30 suction system 50, 51, the air is directed to the fan 52 on a field border a conveyor line 18 * 18a, 18 _C , a small part of the air or the gases is flanked; These conveyor lines 18 are fed with the feed again to the individual panel heaps K by underground cadre organ 16 through a transverse conveyor belt 19 channels 53 for ventilation from the ground. One part is connected, which is parallel to three - in and against which is brought through floor ventilation ducts 54 to a post-feeding direction ζ mobile - running or conveying bridge- 35 rotteplatz 55

ken B passes, the gases are from the fan 52 into individual Beruhi-below the bottom 20 of the deposit surface 17 is directed into supply chambers 56 where the resulting Kondensjedem box 18 of FIG. 1 is a side Unterflurförde- mounted water through a non-represented sump pump rer 21 collect and again in the composting plant. Each of the conveyor bridges B has cross members 22 and 40 to be introduced. rich of rent W; These water nozzles are, in addition, they are neglected in the drawing for the sake of visibility on the pedestals or crane runway rails 24. chen amount of so-called earth filter areas, which the In F i g. 2 is at distance c above the right Fahrsok- 45 exhaust gases that are harmful to the environment, namely in kel 24 the conveyor line 18 in the form of a relatively inexpensive way.

Drum of stretched endless belt recognizable. on

or between the cross members 22 of the conveyor bridge B 3 sheets of drawings
is a transfer device or stripping system 30
attached their - not recognizable - stripping web 50
the brought raw compost K into the interior /
the transfer device 30 conducts

The raw compost falls from the stripping system 30
through a telescopic shaft, for example a bellows 31, attached to one below the cross member 22
arranged and connected to this by telescopic columns 32 conveyor 40. The distance / between
this and the cross members 22 can be changed by means of the telescopic columns 32.

The main component of the conveyor device 40 is a 60
between traverses 41 running conveyor 42. The on
this falling compost K is in the conveying direction χ
taken along and along the conveying path on it
Length q discharged.

Bo-65 is found under both ends of the conveyor 42
Denbleche 43 of length e, the edges 44 of the lateral slopes K _{s of} the in F i g. 2 shown Schüttlceeels VV determine.

Claims (3)

1 2 chamber known for manure; from this rise- claims: de air is - to generate a vacuum in the chamber head - by a blower and one below 1. Method for composting spits provided on the bottom of the sieve for the manure fed to a composting hall via an aerator chamber In the knowledge of this state of the art, the waste materials, with the inventor given by the rent, set the goal of sucking in the ventilation of compost exhaust gases and partially reducing the rent for their rent and reducing the costs. ken.
Ventilation are recirculated, characterized in that the exhaust gases above the pile 10 ren of the type mentioned above, that the exhaust gases are sucked in and some of the exhaust gases sucked in from the pile - as known from manure - sucked back into the pile through the ventilation system and part of the exhaust gases sucked through and the other part of the sucked in the ventilation system is fed back into the pile. the, and the other part of the exhaust gases sucked through 2. The method according to claim 1, characterized in that a post-rot rent is carried out. draws that the exhaust gases before their return is above the pile of compostable material withdrawn in the rent liquid and this liquid a suction device for gases is provided and with The possibility of spraying the pile is preferably connected to a ventilation system for the pile. the is set. The suction device is then connected to at least one fan 3. The method according to claim 1, characterized marked 20 or fan connected, the discharge end of which draws that the rent with approximately vertical Belüf- air or the gases to the ventilation system of the rent processing channels is provided. forwards In addition, the Exhaust gases through the inclusion of the rent. as Subsequent rent is the part of the rent that 25 is already essentially completely composted and is now automatic without further treatment. The invention relates to a method for composting since, in contrast to that, it is not yet or only ren of partially composted garbage on the floor of a composting hall a much denser one Has a ventilation system together to form a structure, it is particularly suitable as a filter. the led waste materials, with the exhaust air given off by the windrow, which led through it to the outside air Exhaust gases sucked in and partly used in the rent contain hardly any environmentally harmful components ventilation to be led back. Ie. The exhaust air is at least once through the Usually compostable material is passed through the rent, as well as the pile through the very large storage areas too. Konjpostmieten loosened the cycle according to the invention, since the dated pours the air brought in from the soil where it - if necessary di'vch trenches ventilate - not through air - stored for a relatively long time complained - garbage heap lifts, resulting in a The pile must be ventilated during this storage, which leads to faster rotting of the garbage what is done, for example, by supplying blown air in the circuit described without the Pipe systems are made using special filters c-ne emission-free A method of the type mentioned in the opening paragraph discloses 40 achieves composting; the circuit allows an opdie DE-PS 22 26 729, which describes a system for the treatment of the material stored in the exhaust gases of compost with a hall floor for little and warmth as well as an economical best overall a compost rent and processing of the compost in the hall floor. provided openings of air supply lines as this also contributes to the fact that within the scope of the invention, the ventilation system and with a canopy that spans the waste gases before they are returned to the pile, reveals the waste gases to be drained and this liquid is preferably at least one line to the Discharge - used by the rental company to spray the rental area. This is connected to rising gases. B. by means of a condensate separator. The roof consists of an air-borne roof membrane; In the withdrawn liquid can be used inexpensively for this purpose air dome several parallel 50 det to spray the rent surface.
Compost heaps are provided between an upper To facilitate ventilation of the pile, ren spray pipe for spray water and a lower air pipe, according to the invention, these are piled up approximately vertical aeration pipe. The air pipe is connected to a blower ducts, which are drilled into the pile and which are connected to the supply of fresh air, which the gases are fed through the warehouse floor.
Rent wanders through and in the area of the hall dome 55 This method has a particularly favorable effect when collected and then via a line of a »Einrich- Rent, which consist of thin layers, the device for rendering harmless in the exhaust air - each placed one after the other and ventilated together harmful or disruptive gases «. Such rents are relatively cheap. The cleaned gas then escapes from this. to ventilate, unpleasant odorous substances can develop. According to a variant of this teaching, the windrow 60 will consequently develop more difficultly than in the conventional way. in that facility, the hall air draws again - Further advantages, features and details of the results, result from the following description DE-OS 25 47 134 shows ventilation channels in an exercise of preferred embodiments and based on Rent paid by one before piling the rent on 65 of the drawing; this shows in the storage place existing device manufactured Fig. 1 in a schematic representation of a garbage com- will. posting system; From DE-PS 9 46 547 a chimney-like decomposition F i g. 2 shows an enlarged detail section of another