EP0157330B1 - Tambour pour le dégazage de déchets - Google Patents

Tambour pour le dégazage de déchets Download PDF

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Publication number
EP0157330B1
EP0157330B1 EP85103518A EP85103518A EP0157330B1 EP 0157330 B1 EP0157330 B1 EP 0157330B1 EP 85103518 A EP85103518 A EP 85103518A EP 85103518 A EP85103518 A EP 85103518A EP 0157330 B1 EP0157330 B1 EP 0157330B1
Authority
EP
European Patent Office
Prior art keywords
drum
gas
carbonisation
collecting chamber
hot gases
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
Application number
EP85103518A
Other languages
German (de)
English (en)
Other versions
EP0157330A2 (fr
EP0157330A3 (en
Inventor
Horst Jelinek
Helmut Werdinig
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.)
KRAFTWERK UNION-UMWELTTECHNIK GmbH
Original Assignee
Kraftwerk Union-Umwelttechnik GmbH
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 Kraftwerk Union-Umwelttechnik GmbH filed Critical Kraftwerk Union-Umwelttechnik GmbH
Priority to AT85103518T priority Critical patent/ATE28659T1/de
Publication of EP0157330A2 publication Critical patent/EP0157330A2/fr
Publication of EP0157330A3 publication Critical patent/EP0157330A3/de
Application granted granted Critical
Publication of EP0157330B1 publication Critical patent/EP0157330B1/fr
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B1/00—Retorts
    • C10B1/10—Rotary retorts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005—Treatment of dryer exhaust gases
    • F26B25/007—Dust filtering; Exhaust dust filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/10—Rotary-drum furnaces, i.e. horizontal or slightly inclined internally heated, e.g. by means of passages in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/32—Arrangement of devices for charging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/32—Arrangement of devices for charging
    • F27B7/3205—Charging
    • F27B2007/3211—Charging at the open end of the drum
    • F27B2007/3217—Charging at the open end of the drum axially, optionally at some distance in the kiln
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/08—Screw feeders; Screw dischargers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2001/00—Composition, conformation or state of the charge
    • F27M2001/05—Waste materials, refuse

Definitions

  • the invention relates to a smoldering drum for the smoldering of waste materials, such as household waste, industrial waste, old tires, plastic waste, sewage sludge or the like, consisting of a drum, heating elements arranged in the interior for passing hot gases for the indirect heating of the smoldering material, a gas collecting chamber for introducing the hot Gases into the heating elements with a seal against the drum, a gas collection chamber for discharging the hot gases from the heating elements with a seal against the drum, an entry device for the carbonized material into the drum, a discharge device for the smoldered material from the drum, and a discharge for the carbonization gas, which is connected to a dust collector.
  • waste materials such as household waste, industrial waste, old tires, plastic waste, sewage sludge or the like
  • the waste materials are carbonized in an indirectly heated drum at temperatures of about 300 to 800 ° C.
  • the carbonization gases and the solid carbonization residue are drawn off at the discharge end of the carbonization drum.
  • the carbonization gases are in a mechanical gas cleaning, e.g. B. a cyclone separator, in which a large part of the dust entrained by the carbonization gases is removed.
  • Such a smoldering drum is known from DE-C 27 13 031, which is equipped with hollow circulation vanes.
  • the circulating blades extend in the longitudinal direction of the drum and open into a gas collection chamber on both ends.
  • hot gases are introduced into the circulation valve and drawn off into the gas collection chamber at the end of the entry.
  • the smoldering material is introduced through the gas collection chamber at the end of the feed.
  • the carbonized material is discharged and the carbonized gases are removed by means of a conveying device through the middle of the end wall of the drum and through the gas collection chamber at the discharge end of the drum.
  • the solid carbonization residue falls into the discharge and the carbonization gas is drawn off upwards and passed into a dust separator.
  • the object of the invention is to keep the dust content in the carbonization gas as low as possible after the mechanical cleaning.
  • the dust separator is arranged in the gas collection chamber for the introduction of the hot gases around the hot gases.
  • the deduction for the carbonization gas is led through the wall of the gas collection chamber into the dust separator, and the discharge line for the dedusted carbonization gas and the discharge for the separated solids from the dust separator are out through the wall of the gas collection chamber.
  • the mechanical dust separator is preferably designed as a cyclone.
  • the hot gases are preferably generated in a combustion chamber which is connected directly to the gas collection chamber. The hot gases flow around the dust separator and prevent condensation in the dust separator.
  • the discharge device for the solid smoldering residue is sealed against the ingress of air, e.g. B. by a double lock or gastight rotary valve.
  • the end faces of the drum are sealed against the escape of carbonization gases into the gas collection chamber or the penetration of gases from the gas collection chambers into the drum.
  • An end wall is used for this purpose, in which the hollow heating elements and the entry and discharge device are embedded gas-tight.
  • a preferred embodiment is that the discharge device for the smoldered material is arranged in front of the gas collection chamber for introducing the hot gases into the heating elements, the discharge device consists of a stationary housing with seals against the drum, the drum in the region of the housing with openings in the Equipped jacket, the end face of the drum in the gas collection chamber is sealed against the escape of carbonization gases, the discharge for the carbonization gas is arranged in the housing and is connected to the dust separator by the wall of the gas collection chamber.
  • the openings in the casing of the drum are distributed over the circumference of the drum. Their size is chosen according to the size of the parts of the smoldering residue. For security reasons, some openings can also be made larger.
  • the shape of the openings is preferably slit-shaped.
  • This configuration ensures that there is no build-up of smoldering residue in the drum before the end of the discharge, thereby creating a grinding effect on the smoldering residue is avoided and the amount of dust is significantly reduced. Furthermore, a separation from the carbonization gas and carbonization residue already occurs in the drum, as a result of which the dust content in the carbonization gas drawn off is reduced. The carbonization gas emerging from the dust separator therefore has a lower residual dust content.
  • a preferred embodiment consists in that a throttle valve is arranged in the trigger for the carbonization gas, which is controlled as a function of the pressure upstream of the throttle valve.
  • Heating elements 2 are arranged in the interior of the drum 1.
  • a stationary gas collection chamber 3 is arranged, which is sealed against the drum 1 by a seal 4.
  • the hot gases emerge from the gas collection chamber 3 into the tubes of the heating elements 2.
  • the stationary gas collection chamber 5 for discharging the hot gases from the heating elements 2 is arranged, which is sealed against the drum 1 by a seal 6.
  • a feed screw is arranged gas-tight against the gas collection chamber 5 and the end wall of the drum 1 as the entry device 7.
  • the discharge 9 for the carbonization gas is arranged in the upper part in the discharge device 8 for the smoldered material.
  • the line of the trigger 9 is guided through the wall of the gas collection chamber 3 and into the dust separator 10.
  • the discharge line 11 for the dedusted carbonization gas and the discharge 12 for the separated solids are led out of the dust separator 10 through the wall of the gas collection chamber 3.
  • the discharge device 8 consists of a stationary housing 13 which is arranged in front of the gas collection chamber 3 and is sealed against the drum 1 with seals 14, 14a.
  • the drum 1 is provided with openings 15 within the area of the housing 13.
  • the heating elements 2 are guided gas-tight through the end wall of the drum 1.
  • the discharge device 8 consists of a tube with spiral flat iron, which is passed gas-tight through the end wall of the drum 1 and the gas collection chamber 3.
  • the smoldering residue falls into the discharge 16 to which the trigger 9 for the smoldering gas is connected at the top.
  • the combustion chamber 17 for generating the hot gases is connected to the gas collection chamber 3.
  • a throttle valve 18 is arranged in the trigger 9 and keeps the pressure in the gas separator 10 constant.
  • the control takes place by measuring the pressure upstream of the throttle valve 18, which is controlled in accordance with the measured pressure via a control 19.
  • the solid matter separated in the dust separator 10 is discharged via a cellular wheel sluice 20.
  • the smoldering residue is discharged from the discharge device 8 through the gas-tight flaps 22 and 22a. When opening and closing, the flap 22 is protected by the slide 21, which stops the flow of the solid during this period. Air infiltration. solutions through the flaps prevents an inert gas which flows through the inlet 23.
  • the advantages of the invention are that there is certainly no condensation of condensable constituents in the dust separator and also in the discharge of the carbonization gas from the dust separator and the residual dust content in the carbonization gas after the dust separator is reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Drying Of Solid Materials (AREA)
  • Pens And Brushes (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Claims (3)

1. Tambour pour la carbonisation sans flamme de déchets, comme des ordures ménagères, des déchets industriels, des pneumatiques usés, des chutes de matière plastique, des boues de curage ou des déchets analogues, constitué d'un tambour (1), d'éléments de chauffage (2) disposés à l'intérieur du tambour et destinés à faire passer des gaz chauds pour le chauffage indirect du produit à carboniser sans flamme, d'une chambre collectrice des gaz (3) destinée à l'introduction des gaz chauds dans les éléments de chauffage (2) et comprenant une garniture d'étanchéité (4) vis-à-vis du tambour (1), d'une chambre collectrice des gaz (5) destinée à l'évacuation des gaz chauds des éléments de chauffage (2) et comprenant une garniture d'étanchéité (6) vis-à-vis du tambour (1), d'un dispositif de chargement (7) du produit à carboniser sans flamme, dans le tambour (1) d'un dispositif de déchargement (8) du produit carbonisé sans flamme du tambour (1), et d'une évacuation (9) destinée au gaz de carbonisation sans flamme et communiquant avec un séparateur de poussière (10), caractérisé en ce que le séparateur de poussière (10) est disposé dans la chambre collectrice des gaz (3) destinée à l'introduction des gaz chauds, de manière à être léché par les gaz chauds, l'évacuation (9) du gaz de carbonisation sans flamme passe, en traversant la paroi de la chambre collectrice du gaz (3), dans le séparateur de poussière (10), et le conduit d'évacuation (11) du gaz dépoussiéré de la carbonisation sans flamme et la sortie (12) des matières solides séparées hors du séparateur de poussière (10) traversent la paroi de la chambre collectrice des gaz (3).
2. Tambour pour la carbonisation sans flamme . suivant la revendication 1, caractérisé en ce que le dispositif de déchargement (8) du produit carbonisé sans flamme est disposé en amont de la chambre collectrice des gaz (3) destinée à l'introduction des gaz chauds dans les éléments de chauffage (2), le dispositif de déchargement (8) est constitué d'une enveloppe (13) fixe ayant des garnitures d'étanchéité (14, 14a) vis-à-vis du tambour (1), le tambour (1) est muni, dans la région de l'enveloppe (13), d'ouvertures (15), la face frontale du tambour (1) dans la chambre collectrice des gaz (3) est fermée en empêchant la sortie des gaz de la carbonisation sans flamme, l'évacuation (9) du gaz de la carbonisation sans flamme est disposée dans l'enveloppe (13) et communique, en passant à travers la paroi de la chambre collectrice pour les gaz (3), avec le séparateur de poussière (10).
3. Tambour pour la carbonisation sans flamme, suivant la revendication 1 ou 2, caractérisé en ce que, dans l'évacuation (9) du gaz de la carbonisation sans flamme, est disposée une soupape d'étranglement (18), qui est commandée en fonction de la pression qui règne en amont de la soupape d'étranglement (18).
EP85103518A 1984-04-04 1985-03-25 Tambour pour le dégazage de déchets Expired EP0157330B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103518T ATE28659T1 (de) 1984-04-04 1985-03-25 Schweltrommel zum verschwelen von abfallstoffen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3412583 1984-04-04
DE19843412583 DE3412583A1 (de) 1984-04-04 1984-04-04 Schweltrommel zum verschwelen von abfallstoffen

Publications (3)

Publication Number Publication Date
EP0157330A2 EP0157330A2 (fr) 1985-10-09
EP0157330A3 EP0157330A3 (en) 1986-01-02
EP0157330B1 true EP0157330B1 (fr) 1987-07-29

Family

ID=6232608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103518A Expired EP0157330B1 (fr) 1984-04-04 1985-03-25 Tambour pour le dégazage de déchets

Country Status (5)

Country Link
EP (1) EP0157330B1 (fr)
AT (1) ATE28659T1 (fr)
DE (2) DE3412583A1 (fr)
FI (1) FI75355C (fr)
IL (1) IL74802A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3633212A1 (de) * 1986-09-30 1988-04-14 Kwu Umwelttechnik Gmbh Pyrolyseanlage
DE4326679A1 (de) * 1993-08-09 1995-02-16 Siemens Ag Heizkammer für Festgut
DE4327633A1 (de) * 1993-08-17 1995-02-23 Siemens Ag Transporteinrichtung für Abfall
DE4329165A1 (de) * 1993-08-30 1995-03-02 Siemens Ag Austragsrohr für eine Schweltrommel sowie Pyrolyseeinrichtung für Abfall
EP0716676B2 (fr) * 1993-09-03 2001-08-22 Siemens Aktiengesellschaft Chambre de chauffe rotative pour produits solides
DE4329871A1 (de) * 1993-09-03 1995-03-09 Siemens Ag Innenberohrte, drehbare Heizkammer für Abfall
WO2011044943A1 (fr) * 2009-10-15 2011-04-21 Pyromex Holding Ag Four à haute température et procédé pour transformer des matières organiques en gaz de synthèse

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE624275C (de) * 1928-11-04 1936-01-16 I G Farbenindustrie Akt Ges Schwelofen, insbesondere fuer Braunkohle
DE615467C (de) * 1933-04-22 1935-07-05 William Arthur Caunt Schwelverfahren fuer bituminoese und aehnliche Ieichtbackende Brennstoffe im Drehrohrofen
US3098458A (en) * 1961-11-01 1963-07-23 Pan American Resources Inc Rotary refuse converter

Also Published As

Publication number Publication date
EP0157330A2 (fr) 1985-10-09
FI850676L (fi) 1985-10-05
FI850676A0 (fi) 1985-02-19
FI75355B (fi) 1988-02-29
ATE28659T1 (de) 1987-08-15
FI75355C (fi) 1988-06-09
EP0157330A3 (en) 1986-01-02
IL74802A (en) 1988-09-30
IL74802A0 (en) 1985-07-31
DE3412583A1 (de) 1985-10-24
DE3560402D1 (en) 1987-09-03

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