EP0149798A2 - Four rotatif pour la pyrolyse de déchets - Google Patents

Four rotatif pour la pyrolyse de déchets Download PDF

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Publication number
EP0149798A2
EP0149798A2 EP84115447A EP84115447A EP0149798A2 EP 0149798 A2 EP0149798 A2 EP 0149798A2 EP 84115447 A EP84115447 A EP 84115447A EP 84115447 A EP84115447 A EP 84115447A EP 0149798 A2 EP0149798 A2 EP 0149798A2
Authority
EP
European Patent Office
Prior art keywords
drum
rotating
sealing
smoldering
heating gas
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.)
Withdrawn
Application number
EP84115447A
Other languages
German (de)
English (en)
Other versions
EP0149798A3 (fr
Inventor
Erich Ing.grad. Fähnle
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.)
PKA Pyrolyse Kraftanlagen GmbH
Original Assignee
PKA Pyrolyse Kraftanlagen 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 PKA Pyrolyse Kraftanlagen GmbH filed Critical PKA Pyrolyse Kraftanlagen GmbH
Publication of EP0149798A2 publication Critical patent/EP0149798A2/fr
Publication of EP0149798A3 publication Critical patent/EP0149798A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • F27B7/22—Rotary drums; Supports therefor
    • F27B7/24—Seals between rotary and stationary parts
    • 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
    • F27B7/36—Arrangements of air or gas supply devices
    • F27B7/362—Introducing gas into the drum axially or through 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
    • F27B7/36—Arrangements of air or gas supply devices
    • F27B7/362—Introducing gas into the drum axially or through the wall
    • F27B2007/365—Introducing gas into the drum axially or through the wall longitudinally
    • 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 rotating smoldering drum for the smoldering of waste materials, such as domestic or industrial waste or the like. according to the features of the preamble of claim 1.
  • a smoldering drum of this type is e.g. described in DE-PS 27 13 031.
  • usable carbonization gas is obtained from the waste by pyrolysis.
  • the shredded waste preferably in granular form, is placed in the gas tightly sealed and indirectly heated smoldering drum introduced.
  • the carbonization gas is then generated and separated from the residues, such as ash and other small parts.
  • the smoldering gas is processed in subsequent processes to the extent that it can be used, for example, to drive gas turbines and gas engines. It can also be used in the chemical industry as synthesis gas for new products or for waste heat recovery, as a by-pass for boiler systems or for the operation of combined heat and power plants.
  • the carbonization gas is generally processed at a cracking temperature of 1100 to 1200 °.
  • the long-chain hydrocarbons are converted into methane and hydrogen and other simple hydrocarbons.
  • the drum is heated indirectly, for example via gas or oil burners, the heating gases being fed to a heating gas collecting chamber on one end of the drum and being introduced from there through bores in heating gas lines which extend through the interior of the drum.
  • the cooled and coming from the heating gas lines heating gases are again collected in a heating gas collecting chamber, from where they are discharged for reheating and then again to the heating gas collecting chamber at the other drum side are fed.
  • a problem with the rotating smoldering drum is its sealing against the atmosphere or the heating gas collecting chambers. Due to the relatively rough operation and tolerance inaccuracies, high demands are placed on the seals, or these seals have a relatively short service life. If heating gases or air enter the inside of the drum due to leaks, this leads to a considerable impairment of the process.
  • the present invention is therefore based on the object of providing a rotating carbonization drum of the type mentioned at the outset in which the above-mentioned problems are solved, in particular in which a good seal is present and in which different material expansions are taken into account.
  • this object is achieved in that in each case on the peripheral wall of a hollow extension on the end wall Drum on the entry side or on the discharge side for solid smoldering residues and / or another rotating part of the drum, a sealing disc is arranged, on the two end faces with play over the neck and / or the other rotating part thrust rings abut sealingly, the thrust rings are each provided on their outer circumference with seals between them and the surrounding housing part.
  • a sealing arrangement on the hollow approach of each is used to seal the heating gas collecting chambers.
  • Drum and a further sealing arrangement may be required in the outer region of an end wall or the peripheral wall of the drum.
  • the seal according to the invention can be used both for the inner area on the hollow neck and for the outer area. It is only essential that the seals are arranged such that there is a mecanicngleitreibung, where, for example, if necessary, at a low rotational wobbling of the drum even better sealing at the two end sides of the sealing - is achieved disc. It is only necessary to ensure that the play between the thrust rings and the shoulder of the drum or another rotating part of the drum is chosen so large that no contact takes place even at high temperature differences.
  • the outer thrust ring is provided with an adjusting device in the direction of the sealing disk. To this way, the seal can be adjusted precisely and, if necessary, readjusted if worn during operation.
  • the adjusting device can have a threaded rod, which in a fixed housing part with an adjusting member, e.g. an adjusting ring, is arranged, wherein the front end of the Gewihdestange acts on the thrust ring.
  • the front end of the threaded rod can be pressed onto the thrust ring either directly or through an intermediate washer.
  • rotation locks are provided if necessary.
  • sealing washer is also provided with sealing rings on its inner peripheral wall. This also ensures that e.g. Due to temperature differences, different expansions, the sealing is guaranteed.
  • the thrust rings have inverted L-shapes, the L-legs being directed towards one another and the sealing washer under the L-legs.
  • sealing rings can be arranged next to one another, distributed over the width of the sealing washer on its inner peripheral wall and on the outer sides of the L-legs. At the same time, however, the surface sliding friction on the two end faces of the sealing washer is essentially retained.
  • the heating gas lines are designed as pipes. These tubes now extend through them, generally axially parallel to the longitudinal axis of the drum. If a sufficient number of pipelines are distributed over the circumference above and next to one another, one becomes very high heat transfer is achieved and, on the other hand, circulation blades can also be omitted, because the pipes thus take over the circulation function.
  • the tubes are arranged on one side in the bore of the end wall of the drum, while on the other side they are displaceable but gas-tight in or on sleeves firmly connected to the end wall of the drum.
  • the pipes can be either inside or outside the sleeves are pushed, for which the seals must be arranged accordingly.
  • the garbage is introduced into the smoldering drum in the form of granules with largely no air, a high degree of efficiency can be achieved.
  • the waste will be processed into briquettes, pellets or granules.
  • the processed garbage in a press in granular form except for e.g. 1 to 20 mm in size and then introduced into the smoldering drum via a rotary valve and an entry screw.
  • a dry matter content of 85 S can be maintained, which results in very good efficiency.
  • the amount of residual water still present in the waste is absorbed on the one hand by the gas phase and on the other hand also required for the subsequent treatment of the smoldering gas. This means that essentially no waste water and no nitrogen oxides occur in this treatment process.
  • the dry matter of the garbage can be higher than 85%.
  • a supply line for water or air is arranged in a metered amount in the entry area of the drum.
  • this supply line can also be used to supply air. It has been found that it can be advantageous to introduce small amounts of air into the smoldering drum. In this way, combustion processes occur inside the drum, as a result of which the desired operating temperature can be reached and maintained more quickly and easily. In this way, external heating energy can be saved.
  • Fig. 1 the smoldering drum 1 is shown schematically.
  • the pyrolysis coke discharge side there is a heating gas collection chamber 2 and on the other end side, namely the entry side, a further heating gas collection chamber 3 is arranged.
  • the drum is driven and supported by two races 4 and 5, which interact with rollers 6 and 7 driven in any way.
  • the garbage which has preferably been crushed and dewatered beforehand in a thermal screw press in the form of granules, is introduced in the direction of the arrow via an entry line 8 and a screw conveyor.
  • the resulting carbonization gas is discharged via a carbonization line 10 via a hollow attachment 9, while the solid carbonization residues are discharged into a water bath 12 via a discharge line with plug screws 11.
  • An air exclusion of the smoldering drum is ensured by the water bath 12.
  • the granulate can be introduced via an airtight rotary valve.
  • the two end faces of the drum 1 are provided with a large number of bores through which tubes 13 are inserted as heating gas lines.
  • the tubes 13 run axially parallel to the longitudinal axis of the drum 1 through the interior of the drum.
  • Heating gas generally cracked hot air, e.g. was heated to 600 to 700 ° C by a burner 32 only indicated in the drawing or with cracked gas, enters the heating gas collecting chamber 2 via an inlet line 14 and passes through the bores into the tubes 13, from where it is on the other end cooled in the heating gas collecting chamber 3 reaches.
  • the discharge of the cooled heating gases takes place via an outlet line 15 and is thus returned to the circuit by means of a fan 33 (see FIG. 1).
  • the excess air generated by the burner 32 is discharged via a by-pass flap 34.
  • the tubes 13 are arranged in the bores on the input side, for example by welding, while they are slidably inserted in a sleeve 16 on the opposite side.
  • This type of fastening is clearly evident from FIG. 4.
  • the sleeve 16 is fixed in a bore in the end wall 17 of the drum 1 and has a plurality of sealing rings 18 one behind the other for sealing.
  • the tube 16 can move in this way without the risk of leaks or tension bridges inside the sleeve. This is indicated by dashed lines in FIG. 4.
  • a supply line 31 is arranged in the area of the entry for the metered supply of water - if the dry content is too high - and / or of air to initiate a substoichiometric combustion process inside the drum 1.
  • a sealing arrangement which is shown enlarged in FIGS. 2 and 3, serves to seal the drum 1 from the atmosphere or the heating gas collecting chambers 2 and 3.
  • FIG. 2 shows the enlargement of the circle "X" in FIG. 1.
  • a sealing disk 19 made of gray cast iron is attached to the hollow extension 9.
  • a plurality of sealing rings 20 are arranged on the inner peripheral wall of the sealing disk 19, which are pressed onto the shoulder 9. Since the sealing disk rotates with the projection 9 and thus with the drum 1, these sealing rings 20 are not subjected to dynamic loads.
  • Thrust rings 21 and 22 which consist of steel, are pressed onto both sides of the sealing disk 19.
  • the thrust rings 21 and 22 have a plurality of seals 23 lying next to one another, which are likewise not subject to dynamic loads, because the thrust rings 21 and 22 are stationary.
  • the thrust ring 22 is for twisting fuse provided with a pin 24 which lies in a bore in the rear wall 25 of the heating gas collecting chamber 2 and in a bore in the thrust ring 23.
  • a screw head 28 serves as the setting member.
  • a plurality of such threaded rods 26 will generally be arranged distributed over the circumference.
  • the thrust rings 21 and 22 are arranged with play over the approach 9. As can be seen, a perfect seal of the heating gas collecting chamber from the inside of the drum is achieved in this way.
  • the dynamic sealing is achieved on the two end faces of the sealing disk 19 to the thrust rings 21 and 22, respectively.
  • the advantage according to the invention lies in a long-lasting and almost maintenance-free seal for drums with a low speed and a slight internal vacuum.
  • a seal arrangement is shown on a smaller scale, in which the sealing paths of the static seals are larger.
  • the thrust rings 210 and 220 each have an inverted L-shape.
  • the two horizontal legs 28 are directed towards one another and have the seals 23 on their outer circumference, with more sealing rings being able to be arranged next to one another due to the L-shape and ensuring a secure seal.
  • the sealing washer 19 is arranged under the two legs 28, as a result of which it can be made wider and thus can also accommodate more sealing rings 20 next to one another on their inner circumference.
  • the threaded rod 26 interacts with an intermediate disk 29 which is pressed onto the thrust ring 210.
  • the contact pressure of the two thrust rings 210 and 220 on the sealing disk 19 can also be regulated.
  • the sealing arrangement described in FIGS. 2 and 3 is also located on the opposite entry side for sealing the heating gas collecting chamber 3.
  • this sealing arrangement can also be used to seal the heating gas collecting chamber 2 or 3 from the atmosphere.
  • - as in FIG. 1 at "30" can be seen - the sealing washer attached to the outer peripheral wall of the drum 1.
  • the same sealing arrangement can be arranged on the opposite side. The seals can be precisely adjusted again using cap screws 28 as the setting element.
EP84115447A 1983-12-22 1984-12-14 Four rotatif pour la pyrolyse de déchets Withdrawn EP0149798A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833346338 DE3346338A1 (de) 1983-12-22 1983-12-22 Rotierende schweltrommel zum verschwelen von abfallstoffen
DE3346338 1983-12-22

Publications (2)

Publication Number Publication Date
EP0149798A2 true EP0149798A2 (fr) 1985-07-31
EP0149798A3 EP0149798A3 (fr) 1986-01-02

Family

ID=6217645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84115447A Withdrawn EP0149798A3 (fr) 1983-12-22 1984-12-14 Four rotatif pour la pyrolyse de déchets

Country Status (4)

Country Link
US (1) US4589354A (fr)
EP (1) EP0149798A3 (fr)
JP (1) JPS60248914A (fr)
DE (1) DE3346338A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610000A1 (fr) * 1987-01-27 1988-07-29 Gutehoffnungshuette Man Tambour rotatif pour la carbonisation a basse temperature de dechets en l'absence d'air
WO1995004795A1 (fr) * 1993-08-09 1995-02-16 Siemens Aktiengesellschaft Chambre de chauffe comportant des tubes de chauffage interieurs
US5707592A (en) * 1991-07-18 1998-01-13 Someus; Edward Method and apparatus for treatment of waste materials including nuclear contaminated materials
EP0895720A1 (fr) * 1997-08-08 1999-02-10 Hauni Maschinenbau Aktiengesellschaft Dispositif d'étanchéité
WO2000015733A1 (fr) * 1998-09-11 2000-03-23 Atlantic Richfield Company Poche de refroidissement pour un refroidisseur a tambour rotatif pourvu d'un event flexible
WO2007007071A1 (fr) * 2005-07-12 2007-01-18 Item Technology Solutions Ltd. Systeme de pyrolyse

Families Citing this family (15)

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Publication number Priority date Publication date Assignee Title
US4932863A (en) * 1987-09-14 1990-06-12 Anderson Russell W Heat loss reduction in rotating drum dryers
US4881947A (en) * 1988-06-28 1989-11-21 Parker Thomas H High efficiency gasifier with recycle system
DE4103605A1 (de) * 1991-02-07 1992-08-13 Siemens Ag Verfahren und einrichtung zum heizen einer schweltrommel
US5203328A (en) * 1991-07-17 1993-04-20 Georgia Tech Research Corporation Apparatus and methods for quantitatively measuring molecular changes in the ocular lens
DE4429908A1 (de) * 1994-08-23 1996-02-29 Siemens Ag Mit Heizrohren ausgestattete Heizkammer für Festgut
DE19726150C1 (de) * 1997-06-19 1998-11-05 Siemens Ag Innenberohrte, drehbare Heizkammer für Abfall
US7191714B2 (en) * 2003-08-21 2007-03-20 International Enviornmental Solutions Corporation Shaft seal for a pyrolytic waste treatment system
BRPI0413811A (pt) * 2003-08-21 2006-10-17 Int Environmental Solutions suporte de cámara para sistema de tratamento de resìduos pirolìticos
RU2364451C1 (ru) * 2008-07-21 2009-08-20 Сергей Юрьевич Вильчек Универсальный способ переработки материалов в секционном аппарате барабанного типа с проходными отверстиями в перегородках между секциями и устройство для его осуществления
US20100065411A1 (en) * 2008-09-17 2010-03-18 Jianguo Li Revolving waste plastic-oil converting equipment and method of using the same
US8317980B2 (en) * 2008-09-17 2012-11-27 Nantong Tianyi Environment And Energy Technology Limited Corporation Reactor for converting waste materials into fuel, a feeding system for feeding waste materials into the reactor, and methods for converting waste materials into fuel
CA2798013C (fr) * 2010-05-03 2018-02-27 Icm, Inc. Reacteur de torrefaction rotatif
KR20160140740A (ko) * 2014-03-31 2016-12-07 클린카본컨버전페이턴츠 아게 수소 가스를 주도록 유기 재료를 반응시키기 위한 공정 및 디바이스
CN108844373A (zh) * 2018-07-18 2018-11-20 伊之密机器人自动化科技(苏州)有限公司 废料提升机
CN117126679B (zh) * 2023-10-26 2023-12-26 山西亿通源制造设备有限公司 一种环保间歇式裂解炉

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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
DE669727C (de) * 1936-11-21 1939-01-02 Fried Krupp Grusonwerk Akt Ges Stopfbuechse fuer umlaufende Schweltrommeln
FR2231928A1 (fr) * 1973-06-09 1974-12-27 Kobe Steel Ltd

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US1477823A (en) * 1921-12-30 1923-12-18 Grindle Fuel Equipment Company Rotary drier
US2057099A (en) * 1933-03-10 1936-10-13 Gen Chemical Corp Production of sulphur dioxide
US2151320A (en) * 1936-12-12 1939-03-21 Forni Natale Garbage incinerator
US2826403A (en) * 1954-07-17 1958-03-11 Nat Lead Co Cooling arrangements for rotary kilns
US3940239A (en) * 1974-12-16 1976-02-24 Allis-Chalmers Corporation Rotary reducing kiln seal
DE2846387C2 (de) * 1978-10-25 1983-11-17 Smit Ovens Nijmegen B.V., Nijmegen Einrichtung zur Abdichtung von Öfen mit rotierenden Kammern oder Drehherden
US4338868A (en) * 1981-02-03 1982-07-13 Lientz La Clede Refuse burning process and apparatus
US4376343A (en) * 1981-07-21 1983-03-15 White Henry J Method and apparatus for drying bagasse
US4427376A (en) * 1982-07-16 1984-01-24 Wylie Manufacturing Company Apparatus for heating aggregate, recycled asphalt and the like

Patent Citations (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
DE669727C (de) * 1936-11-21 1939-01-02 Fried Krupp Grusonwerk Akt Ges Stopfbuechse fuer umlaufende Schweltrommeln
FR2231928A1 (fr) * 1973-06-09 1974-12-27 Kobe Steel Ltd

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610000A1 (fr) * 1987-01-27 1988-07-29 Gutehoffnungshuette Man Tambour rotatif pour la carbonisation a basse temperature de dechets en l'absence d'air
US5707592A (en) * 1991-07-18 1998-01-13 Someus; Edward Method and apparatus for treatment of waste materials including nuclear contaminated materials
WO1995004795A1 (fr) * 1993-08-09 1995-02-16 Siemens Aktiengesellschaft Chambre de chauffe comportant des tubes de chauffage interieurs
US5992019A (en) * 1993-08-09 1999-11-30 Siemens Aktiengesellschaft Method of replacing heating tubes of a heating chamber
EP0895720A1 (fr) * 1997-08-08 1999-02-10 Hauni Maschinenbau Aktiengesellschaft Dispositif d'étanchéité
WO2000015733A1 (fr) * 1998-09-11 2000-03-23 Atlantic Richfield Company Poche de refroidissement pour un refroidisseur a tambour rotatif pourvu d'un event flexible
US6143137A (en) * 1998-09-11 2000-11-07 Atlantic Richfield Company Cooling pocket for a rotary drum cooler having a flexible vent pipe assembly
WO2007007071A1 (fr) * 2005-07-12 2007-01-18 Item Technology Solutions Ltd. Systeme de pyrolyse
GB2441721A (en) * 2005-07-12 2008-03-12 Item Technology Solutions Ltd Pyrolysis system
GB2441721B (en) * 2005-07-12 2010-03-03 Item Technology Solutions Ltd Pyrolysis system

Also Published As

Publication number Publication date
JPS60248914A (ja) 1985-12-09
EP0149798A3 (fr) 1986-01-02
US4589354A (en) 1986-05-20
DE3346338A1 (de) 1985-07-11

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Inventor name: FAEHNLE, ERICH, ING.GRAD.