DE1784605B

DE1784605B - Method and device for treating sewage sludge and garbage

Info

Publication number: DE1784605B
Authority: DE
Inventors: Eugen von Dipl.-Ing.; Rösner Kurt; Meyer Ludwig; 4400 Münster Conrad
Original assignee: Hazemag Hartzerkleinerungs- und Zement-Maschinenbau GmbH, 4400 Münster

Description

Hälfte, hinter dem Prallraum dem in feinverteiltem Der zu zerkleinernde Müll wird durch ein Förder-Zustand aus dem Prallraum herausgeschleuderten band 1 oder eine entsprechende Aufgabeeinrichtung Müll zuzugeben, weil bei geeigneter Ausbildung und der Prallmühle 2 zugeführt. Die Mühle enthält in Anordnung der Zuführungsmittel auch an dieser bekannter Weise einen mit Schlagwerkzeugen, z. B. Stelle eine innige Vermischung des Klärschlamms 5 Zähnen 3, besetzten Mühlenrotor 4, der den aufmit dem Müll ohne zusätzliche Geräte erzielt werden gegebenen Müll gegen den Prallraum 5 begrenzende, kann. ausschwenkbare Prallwerke 6 und 8 schleudert. Die Die zur Durchführung des erfindungsgemäßen Prallwerke sind an ihrem unteren Rand mit einem Verfahrens bestimmte Prallmühle zeichnet sich durch Zahnkamm 7 versehen. Die Zahnkämme 7 erhöhen eine in der Mülleinlauföffnung der Prallmühle an- io im Zusammenwirken mit den Zähnen 3 den Zergeordnete Schlamm aufgabewanne aus, die mit einer kleinerungseffekt. Der zerkleinerte Müll wird etwa in Überlaufkante versehen ist, über die der Klär- Richtung der gestrichelten Linie 9 aus dem Prallschlamm in einem gleichmäßigen Schleier auf den raum 5 herausgeschleudert.Half, behind the baffle in the finely divided garbage to be shredded is through a conveying state belt 1 thrown out of the impact space or a corresponding feeding device Add garbage, because with suitable training and the impact mill 2 fed. The mill contains in Arrangement of the supply means also in this known way a with striking tools, for. B. Make an intimate mixing of the sewage sludge 5 teeth 3, occupied mill rotor 4, the open with the garbage can be achieved without additional equipment given garbage against the impact space 5 limiting, can. swing-out baffles 6 and 8 hurls. The to carry out the impact works according to the invention are at their lower edge with a Process-specific impact mill is characterized by tooth comb 7 provided. Raise the tooth combs 7 one in the garbage inlet opening of the impact mill an- io in cooperation with the teeth 3 the disorganized Sludge feed pan made with a reducing effect. The shredded garbage is roughly in Overflow edge is provided over which the clarification direction of the dashed line 9 from the impact sludge thrown out in a uniform veil onto room 5.

von einem Müllförderband kommenden Müll fällt. Oberhalb der Einlauföffnung 10 der Prallmühle Für den Fall, daß weiterer Klärschlamm dem im 15 ist eine Schlammaufgabewanne Il angeordnet, in Prallraum zerkleinerten und mit Kläschlamm ver- welche der Klärschlamm eingeleitet wird. Er fließt, mischen Müll zugegeben werden soll, ist hinter dem in seiner Menge durch nicht dargestellte Ventile letzten Prallwerk eine zusätzliche Schlammaufgabe- dosiert, über eine Überlaufkante .·. Y. in einem gleichwanne mit einer Überlaufkante vorgesehen, an die mäßigen Schleier auf den von dem Fürderband 1 ansich ein schräg gegen den Mühlenrotor geneigtes, 20 geförderten Müll und gemeinsam mit diesem in den den Klärschlamm in dünner Schicht in den vom Prallraum 5 der Prallmühle 2. Hier tritt neben der Müulenrotor aus dem Prallraum in feiner Verteilung Zerkleinerung de? Mülls infolge seiner Verwirbelung herausgeschleuderten Müllschleier förderndes Ab- eine homogene Mischung des eingeleiteten Klärlaufblech anschließt. Der Müll rutscht dann — mit Schlamms mit dem Müll ein, wobei infolge der dem Klärschlamm innig vermischt — von dem 25 eintretenden Oberflächenvergrößerung und ihrer Blech ab. günstigen Darbietung das Aufsaugen des Klär-Garbage coming from a garbage conveyor is falling. Above the inlet opening 10 of the impact mill. In the event that further sewage sludge is arranged in 15, a sludge feed trough II is arranged, comminuted in the impact space and mixed with sewage sludge, which the sewage sludge is introduced. If it flows, mix garbage is to be added, an additional sludge feed is dosed behind the last impact device in its quantity by valves (not shown), via an overflow edge. ·. Y. provided in an equal trough with an overflow edge, to the moderate veil on the by the conveyor belt 1 itself a sloping inclined towards the mill rotor, 20 conveyed garbage and together with this in the sewage sludge in a thin layer in the from the impact chamber 5 of the impact mill 2 . Garbage as a result of its turbulence thrown out garbage curtain promoting Ab- a homogeneous mixture of the introduced septic tank connects. The garbage then slips - with sludge with the garbage, being intimately mixed as a result of the sewage sludge - from the surface enlargement that occurs and its sheet metal. favorable performance absorbing the clarifying

Damit die Menge des zugegebenen Klärschlamms Schlamms begünstigt wird.So that the amount of sewage sludge added is favored sludge.

der Art des aufgegebenen Mülls angepaßt werden Bei der dargestellten Prallmühle ist hinter dem kann — die Zusammensetzung und damit der zweiten Prallwerk 8 eine weitere Aufgabewanne 13 Feuchtigkeitsgehalt des Mülls verändert sich mit der 30 für Klärschlamm vorgesehen, die ebenfalls eine Jahreszeit, dem Wetter und infolge anderer Ein- Überlaufkante 14 aufweist, an welche sich ein Abflüsse —, sind Ventile zur Regelung des Klär- laufblech 15 anschließt, über das Klärschlamm fortschlammzustromes zu den Schlammaufgabewannen laufend in dünner Schicht abläuft. Dieses Ablaufvorgesehen, blech ist so angeordnet, daß es von dem in Richtung Die Zeichnung zeigt als Ausführungsbeispiel eine 35 der Linie 9 abgeschleuderten Müllschleier getroffen für die Behandlung von Klärschlamm und Müll wird. Dadurch wird eine innige Verbindung des über gemäß der Erfindung eingerichtete Prallmühle im das Ablaufblech 15 ablaufenden Klärschlamms mit Querschnitt. dem zerkleinerten Müll bewirkt.the type of waste to be adjusted. In the illustrated impact mill is behind the can - the composition and thus the second baffle 8 a further feed tray 13 The moisture content of the garbage changes with the 30 provided for sewage sludge, which is also a Season, the weather and as a result of other inlet overflow edge 14, to which an outflow -, valves for regulating the sewage plate 15 are connected, via the sewage sludge inflow of sludge runs continuously in a thin layer to the sludge feed tanks. This process provided, sheet metal is arranged so that it is from the in the direction As an exemplary embodiment, the drawing shows a garbage curtain thrown off the line 9 for the treatment of sewage sludge and garbage. This creates an intimate connection of the over Impact mill set up according to the invention in the sewage sludge running off the drainage plate 15 Cross-section. the crushed garbage causes.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

(German Auslegeschrift 1 204 604). The Hammer patent claims: the mill clogged very quickly and showed a particularly high level of wear and tear because

1. Process for treating sewage sludge baked goods, between which the hammer and rubbish had to constantly knock through with a mixture of sewage sludge and 5.

Garbage in one of the comminution of garbage The invention is based on the object of a serving mill, thereby gekennzeich- the largest possible amount of non-drained η et that for the purpose of producing one for sewage sludge in a single operation with the composting or incineration suitable remaining , waste generated in a settlement. Product which is made up of household waste and bulky waste, namely household waste and bulky waste, comminuted into a common composting or incineration for the standing waste in an impact mill and that the sewage sludge is suitable for processing as wet sludge. ...
the flowing into the impact mill and / or The solution to this problem is that the garbage located in it is fed. for the purpose of producing a

2. The method according to claim 1, characterized in that suitable products are posted or incinerated indicates that the garbage that was added to the garbage, consisting of household garbage and bulky garbage, is in Amount of sewage sludge is crushed in a weight-an impact mill and that the purification ratio from about 1: 2 to the amount of garbage sludge as wet sludge that in the Prallnuü ^ e stands. flowing in and / or in it

3. The method according to claim 1 or 2, characterized in that 20 grist is supplied.

characterized in that part of the sewage sludge. As a result of the only possible with the impact mill E.g. half, behind the impact space that in common shredding of house garbage and in a finely divided state from the impact space - bulky waste flung out in the presence of sewage sludge, Shredded garbage is an extremely important aspect of this shredding process will. 25 Mixture of these proportions. The bulky waste takes care of this

4. Impact mill to carry out the Ver is generally very dry, so that the Fahrens according to claim 1, characterized by total shredded garbage a relatively one in the Müu inlet opening of the impact mill (2) has a low water content, so that it is a consideration Schlamma ^ f gabe-anne (11), which can be added with borrowed amount of sewage sludge. an overflow edge (12) / can be seen. 30 without the water content of the total product em

5. Impact mill to carry out the process for incineration or for composting in the process according to claim 3, characterized by a permissible high level achieved. It is in general an additional, behind the last impact device (8) possible, in this way the entire resulting arranged sludge feed tub (13) with sewage sludge in the garbage.

an overflow edge (14) to which an inclined 35 can be used for the entire processing in one inclined towards the mill rotor, the only clarification process within the impact mill sludge in a thin layer in the mill targets, with the sewage sludge without a special rotor (4) from the impact space (5) in fine turns for thickening or drying as a wet distribution thrown out garbage can be fed sludge. With a promotional Drain plate (15) connects. 40 closing rotting process also causes the after

6. Impact mill according to one of claims 4 comminution somewhat coarsely held bulky waste a and 5, characterized by valves for good ventilation of the entire material, so that the Regulation "of the sewage sludge inflow to the rotting thermophilic bacteria Sludge feed troughs (11, 13). find ideal living conditions and

45 construction of the organic matter begins immediately.

Since with the bulky waste consisting essentially of organic materials, larger amounts of Sewage sludge than with known composting

The invention relates to a method for the method that can be processed, is obtained in this way deal with sewage sludge and garbage in one of the 50 significantly more humus-forming soil improvement crushers of the garbage serving mill as well as medium, as if only household garbage and sewage sludge to one Impact mill for carrying out the process. to be rotten together.

For the harmless storage of sewage sludge It is already known that the impact mill for

and garbage, it is known to mix dewatered sewage sludge, coarse shredding of household waste and bulky waste with shredded garbage, and to prepare both 55 of a sieve device and one of these after-StofTc together to compost. The switched hammer mill (German Auslege-Zerkleincm des Mülls takes place in rasping script 1 204 604) or for crushing Spcrr- (Austrian patent 239 818) or to use in garbage alone (German Auslegcschril't Hammer- or Prallmühlcn (Swiss patent I 272 688). Sewage sludge in the form of wet sludge writing 441 179). In this process it is 60 but has not been added here,
not possible, larger amounts of sewage sludge in which a particularly easily decomposable product results

To accommodate garbage, because the water content of the when the sewage sludge-Gumisches added to the garbage otherwise both for burning as an amount in a weight ratio of about 1: 2 too big for composting too. the amount of garbage. It does not have to

The same useless result was obtained with 65 conditionally all the sewage sludge to be added a failed attempt, however, in the crushing of the garbage in the baffle be added to the household waste with the addition of sewage sludge in the mill. Rather, it is too n.'cr hammer mill should be crushed possible, part of the sewage sludge, z. B. the