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EP0262315B1 - Dispositif d'incinération de déchets - Google Patents

Dispositif d'incinération de déchets Download PDF

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Publication number
EP0262315B1
EP0262315B1 EP87109951A EP87109951A EP0262315B1 EP 0262315 B1 EP0262315 B1 EP 0262315B1 EP 87109951 A EP87109951 A EP 87109951A EP 87109951 A EP87109951 A EP 87109951A EP 0262315 B1 EP0262315 B1 EP 0262315B1
Authority
EP
European Patent Office
Prior art keywords
drum
combustion
pyrolysis
waste
gas outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87109951A
Other languages
German (de)
English (en)
Other versions
EP0262315A3 (en
EP0262315A2 (fr
Inventor
Andreas Dipl.-Ing. Maksymowicz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Friedrich Maurer Soehne GmbH and Co KG
Original Assignee
Friedrich Maurer Soehne GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Friedrich Maurer Soehne GmbH and Co KG filed Critical Friedrich Maurer Soehne GmbH and Co KG
Priority to AT87109951T priority Critical patent/ATE52604T1/de
Publication of EP0262315A2 publication Critical patent/EP0262315A2/fr
Publication of EP0262315A3 publication Critical patent/EP0262315A3/de
Application granted granted Critical
Publication of EP0262315B1 publication Critical patent/EP0262315B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F23G5/0273—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage using indirect heating

Definitions

  • the invention relates to a rotary kiln for degassing and incineration of waste, the degassing being carried out in a pyrolysis drum which has a loading opening for the waste to which a carbonization gas outlet is connected, and the ashing is carried out in a rotatably mounted combustion drum which is one at the end of the loading Flue gas extraction and a burner at the discharge end for the ashes.
  • the pyrolysis drum, in which the waste is carbonized to produce carbonization gas, is indirectly heated.
  • Such a rotary kiln is known from DE-C 347 829.
  • the known rotary kiln has a pyrolysis drum and a combustion drum, which are spatially separated from one another.
  • the pyrolysis drum runs with its central section through a heating train, through which the combustion exhaust gas leaving the combustion drum flows.
  • the well-known rotary kiln has i.a. the disadvantage that the pyrolysis drum must be sealed against two fixed heads, which is only possible with great technical effort because of the thermal expansion of the pyrolysis drum. Furthermore, the discharge of the smoldering coke from the pyrolysis drum, which is controlled by a rotary slide valve, is complex and prone to failure. Finally, the broken down arrangement of the individual assemblies leads to high heat losses; Due to the high heat losses, the known system works with poor thermal efficiency. It also takes up a lot of space.
  • the invention has for its object to reduce the structural complexity and susceptibility to malfunction and to improve the thermal efficiency in a rotary kiln of the type mentioned; in particular, the heat losses are to be reduced.
  • the indirect heating of the pyrolysis drum takes place in the rotary kiln according to the invention in that the annular space between the combustion drum and the pyrolysis drum is connected to the flue gas outlet.
  • the polychlorinated aromatic hydrocarbon content of which is higher than the usual trace content of these substances in household waste or waste similar to household waste a minimum temperature of 1200 ° C is required in the afterburning chamber.
  • the rotary kiln according to the invention Compared to the smoldering process known from DE-3 347 554 C2, the rotary kiln according to the invention ensures a use of the smoldering gases independent of external consumers and a high energy yield of the waste; Compared to the rotary kiln known from DE-A 2 433 676, the rotary kiln according to the invention enables the processing of high-energy waste with temperatures which make a refractory lining of the rotary kiln unnecessary.
  • waste with a high energy content such as oil sludge.
  • the composition of the waste should expediently be checked and kept as constant as possible, mixtures of comminuted waste and sewage or industrial sludge also being suitable. It is important for the ashing to keep the moisture content of the sludge, the solids content of the waste mixture and the maximum particle size of the solids content within specified limits.
  • combustion drum is fixedly connected in its section forming the combustion chamber to an outer drum enveloping it, and that the annular space formed between the latter and the combustion drum is connected to the discharge end.
  • the ashes are strongly cooled, i.e. H. their energy content is used to save burner energy for the combustion chamber.
  • this cover expediently contains the burner opening and at the same time forms the end wall for the discharge-side closure of the combustion drum.
  • the rotary kiln shown in Fig. 1 is essentially made up of mostly cylindrical parts symmetrical with respect to the cutting plane. It essentially consists of a rotatably mounted combustion drum (1) and a pyrolysis drum (2) arranged in the interior thereof and connected to it in a rotationally fixed manner.
  • a loading device (3) is passed through the left end of the two drums in the drawing, through which the waste to be incinerated enters the pyrolysis drum (2).
  • the pyrolysis drum (2) has in its left end a loading opening (4) through which a trunk (5) of the loading device (3) passes.
  • both drums are sealed on the loading side against fixed wall parts, which are connected to separate fume cupboards for the flue gas from the combustion drum (1) and for the carbonization gas from the pyrolysis drum (2).
  • the combustion drum (1) connects to a flue gas outlet chamber (6) with a flue gas outlet (7);
  • the pyrolysis drum (2) connects to a carbonization gas outlet chamber (8) with carbonization gas discharge (9).
  • the gas temperature is about 550 ° C, while it is still lower in the smoldering gas discharge (9).
  • Throttle valves (10) for controlling the gas flow are provided in both gas vents.
  • the pyrolysis drum (2) is non-rotatably connected to the combustion drum (1) at several points along its circumference by means of rigid bolts (11). At the inner end of the pyrolysis drum (2) it is connected to the inner surface of the combustion drum (1) via a conical wall (12). The conical wall (12) is in the area ending on it Flue gas channels (13) open. A total of four flue gas ducts (13), as shown in FIG. 2, are arranged in a stem or cross shape and connected to a common central inlet connection (14). Between the flue gas ducts (13) and radially inside the wall (12), the pyrolysis drum (2) is open to the combustion chamber (15) of the combustion chamber (1) adjoining on the right. This opening is shown in Fig. 2 by four reduced quadrants (16). In Fig. 2, the inflow connector (14) is drawn in its front view; inside it contains inlet openings (17) to the individual flue gas ducts (13).
  • the waste to be incinerated reaches the inside of the pyrolysis drum (2) via the loading device (3) and is transported there from left to right by means of a conveyor device consisting of helically running ribs (18) fastened to the inner wall of the pyrolysis drum, provided that the drum is rotated according to arrow (P).
  • a conveyor device consisting of helically running ribs (18) fastened to the inner wall of the pyrolysis drum, provided that the drum is rotated according to arrow (P).
  • P helically running ribs
  • the remaining combustible components of the pyrolysis coke are burned with the aid of a burner (19) which is arranged adjacent to the discharge end of the combustion drum (1).
  • the combustion drum (1) is open at its discharge end; the closure to the outside is effected by an outer drum (20), which is non-rotatably connected to the combustion drum (1) to form an annular space (21) between the latter.
  • a burner opening for receiving the burner (19) is provided in a front cover (22) of the outer drum (20) adjacent to the discharge end of the combustion drum (1).
  • the pyrolysis coke is conveyed in the direction of the discharge end for the ash by means of screw-shaped ribs (23) attached to the inside of the combustion drum (1).
  • the ash enters the annular space (21) between the outer drum (20) and the combustion drum (1) through the discharge opening (24) at the right end of the combustion drum (1), migrates there to the left and leaves the through the open end of the outer drum (20) Rotary kiln.
  • the hot ash still gives off its thermal energy to the combustion drum in the area of the combustion chamber (15).
  • FIG. 2 shows the pyrolysis coke (25) according to the cut 11-11 of FIG. 1, the line (26) above the cut area representing the outline of the pyrolysis coke bed in the transition area between the pyrolysis drum (2) and the combustion chamber (15) .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)
  • Gasification And Melting Of Waste (AREA)

Claims (7)

1. Four tubulaire rotatif pour le dégazage et l'incinération de déchets, le dégazage s'opérant dans un tambour de pyrolyse qui présente un orifice de chargement des déchets, auquel est raccordée une évacuation du gaz de distillation, et l'incinération s'opérant dans un tambour de combustion qui est monté à rotation et comporte une évacuation des gaz de fumée à l'extrémité alimentation, ainsi qu'un brûleur à l'extrémité d'extraction de la cendre, caractérisé par le fait
a) que le tambour de pyrolyse (2), logé à l'intérieur du tambour de combustion (1) auquel il est assujetti en rotation, forme une chambre annulaire (27) entre lui-même et le tambour de combustion, et s'étend sur une partie de la longueur de ce tambour de combustion (1) en direction de l'extrémité extraction, à partir de l'extrémité alimentation,
b) que le tambour de pyrolyse (2) présente, à son extrémité s'engageant dans le tambour de combustion (1), un orifice (16) d'extraction du semi-coke qui est formé à partir des déchets et est calciné, en de la cendre, dans la chambre de combustion attenante (15) du tambour de combustion (1), et
c) que la chambre annulaire (27), entre le tambour, de combustion (1) et le tambour de pyrolyse (2), est raccordée à l'évacuation (7) des gaz de fumée.
2. Four tubulaire rotatif selon la revendication 1, caractérisé par le fait que le tambour de combustion (1) est relié rigidement, dans sa région formant la chambre de combustion (15), à un tambour extérieur (20) qui l'entoure; et par le fait que la chambre annulaire (21), formée entre ce tambour extérieur et le tambour de combustion (1), est reliée à l'extrémité extraction du tambour de combustion.
3. Four tubulaire rotatif selon la revendication 2, caractérisé par le fait que le tambour extérieur (20) est obturé, à son extrémité voisine de l'extrémité extraction du tambour de combustion (1), par l'intermédiaire d'un couvercle (22) percé d'un orifice destiné au brûleur (19).
4. Four tubulaire rotatif selon la revendication 1, caractérisé par le fait que l'extrémité interne du tambour de pyrolyse (2) est raccordée à la surface intérieure du tambour de combustion (1) par l'intermédiaire d'une cloison annulaire (12) s'étendant, à l'oblique vers l'extérieur, en direction de l'extrémité extraction; et par le fait que cette cloison (12) est ouverte au voisinage de canaux (13) à gaz de fumée, qui s'y achèvent et sont reliés à la chambre de combustion (15).
5. Four tubulaire rotatif selon la revendication 4, caractérisé par le fait que les canaux (13) à gaz de fumée sont agencés en étoile, et sont raccordés à un manchon central commun (14) d'afflux des gaz de fumée.
6. Four tubulaire rotatif selon la revendication 1, caractérisé par le fait que la longueur du tambour de pyrolyse (2) correspond sensiblement à la demi- longueur, toutefois au moins à un tiers de la longueur du tambour de combustion (1).
7. Four tubulaire rotatif selon la revendication 1, caractérisé par le fait que l'évacuation (7) des gaz de fumée et l'évacuation (9) du gaz de distillation débouchent dans une chambre de post-combustion.
EP87109951A 1986-09-25 1987-07-10 Dispositif d'incinération de déchets Expired - Lifetime EP0262315B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87109951T ATE52604T1 (de) 1986-09-25 1987-07-10 Vorrichtung zur veraschung von abfaellen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3632548 1986-09-25
DE3632548A DE3632548C1 (de) 1986-09-25 1986-09-25 Verfahren zur Veraschung von Abfaellen und Vorrichtung zur Durchfuehrung des Verfahrens

Publications (3)

Publication Number Publication Date
EP0262315A2 EP0262315A2 (fr) 1988-04-06
EP0262315A3 EP0262315A3 (en) 1989-01-11
EP0262315B1 true EP0262315B1 (fr) 1990-05-09

Family

ID=6310305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109951A Expired - Lifetime EP0262315B1 (fr) 1986-09-25 1987-07-10 Dispositif d'incinération de déchets

Country Status (3)

Country Link
EP (1) EP0262315B1 (fr)
AT (1) ATE52604T1 (fr)
DE (1) DE3632548C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2324722C1 (ru) * 2006-09-13 2008-05-20 Государственное научное учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства (ГНУ ВИЭСХ) Способ и устройство для термохимической переработки твердого органического вещества

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE58901940D1 (de) * 1988-09-05 1992-09-03 Siemens Ag Pyrolysereaktor zur thermischen abfallentsorgung.
DE3928748A1 (de) * 1989-08-30 1991-03-07 Bela Medvey Verfahren und vorrichtung zum verbrennen von feuchtem verbrennungsgut
DE4122157C2 (de) * 1990-07-20 1997-05-28 Hein Lehmann Montage Gmbh Drehofen für die Verbrennung von pflanzlichen Stoffen
AT398129B (de) * 1991-01-14 1994-09-26 Waagner Biro Ag Drehrohrwärmebehandlungsanlage, insbesondere drehrohrofen
DE19925316A1 (de) * 1999-05-27 2000-11-30 Technip Benelux B V Verfahren und Anlage zur autothermen Vergasung von festen Brennstoffen
RU2242677C1 (ru) * 2003-12-17 2004-12-20 Государственное научное учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства Способ и устройство для термохимической переработки твердых органических материалов
ES2259268B1 (es) * 2005-03-08 2007-11-01 Bio Watt Iberica, S.L. Sistema de obtencion de combustible liquido a partir de plasticos residuales del tipo polietileno, polipropileno y poliestireno.
DE102008021019B4 (de) 2008-04-25 2012-06-28 Eisenmann Ag Ofen zur Pyrolyse von Abfallmaterial und Verfahren zum Betreiben eines Ofens
DE102008021016B4 (de) 2008-04-25 2021-04-29 Eisenmann Se Ofen zur Pyrolyse von Abfallmaterial und Verfahren zum Betreiben eines solchen Ofens
DE102008021018B4 (de) 2008-04-25 2013-07-18 Eisenmann Ag Ofen zur Pyrolyse von Abfallmaterial
IT202300012723A1 (it) * 2023-06-20 2024-12-20 Tenkos Soc A Responsabilita Limitata Semplificata Apparecchiatura e metodo per il trattamento termico di materiale solido combustibile con inertizzazione delle ceneri

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE347829C (de) * 1922-01-26 Curt Gerson Dipl Ing Drehrohrofen zur Verbrennung von Hausmuell
DE1260069B (de) * 1963-09-26 1968-02-01 Schmitz & Apelt Dr Muellverbrennungsofen
US3357382A (en) * 1965-02-17 1967-12-12 Matteini Silvano Solid trash drying and incinerating furnace
JPS5221833B2 (fr) * 1973-07-12 1977-06-13
US3861336A (en) * 1973-11-07 1975-01-21 Shinzaburo Koyanagi Garbage incinerator
FR2484294B1 (fr) * 1980-06-17 1985-06-28 Lejeune Gwenole Procede et dispositif de traitement de produits humides
DE3347554C2 (de) * 1983-05-18 1986-08-07 Pka Pyrolyse Kraftanlagen Gmbh, 7080 Aalen Verfahren zur Gewinnung von verwertbarem Gas aus Müll durch Pyrolyse und Vorrichtung zum Durchführen des Verfahrens
FR2573514A1 (fr) * 1984-11-20 1986-05-23 Bet Bio En Tech Sarl Bruleur a produits ligneux

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2324722C1 (ru) * 2006-09-13 2008-05-20 Государственное научное учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства (ГНУ ВИЭСХ) Способ и устройство для термохимической переработки твердого органического вещества

Also Published As

Publication number Publication date
DE3632548C1 (de) 1987-10-15
ATE52604T1 (de) 1990-05-15
EP0262315A3 (en) 1989-01-11
EP0262315A2 (fr) 1988-04-06

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