EP0353491B1 - Installation pour brûler des déchets spéciaux - Google Patents

Installation pour brûler des déchets spéciaux Download PDF

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Publication number
EP0353491B1
EP0353491B1 EP89112462A EP89112462A EP0353491B1 EP 0353491 B1 EP0353491 B1 EP 0353491B1 EP 89112462 A EP89112462 A EP 89112462A EP 89112462 A EP89112462 A EP 89112462A EP 0353491 B1 EP0353491 B1 EP 0353491B1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
waste
installation
chamber
wall
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
EP89112462A
Other languages
German (de)
English (en)
Other versions
EP0353491A1 (fr
Inventor
Martin Rudolf Zweifel
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.)
ABB Immobilien AG
Alstom SA
Original Assignee
ABB Management AG
W and E Umwelttechnik AG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4243946&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0353491(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ABB Management AG, W and E Umwelttechnik AG filed Critical ABB Management AG
Priority to AT89112462T priority Critical patent/ATE95291T1/de
Publication of EP0353491A1 publication Critical patent/EP0353491A1/fr
Application granted granted Critical
Publication of EP0353491B1 publication Critical patent/EP0353491B1/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
    • F23G5/008—Incineration of waste; Incinerator constructions; Details, accessories or control therefor adapted for burning two or more kinds, e.g. liquid and solid, of waste being fed through separate inlets
    • 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
    • F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
    • F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
    • 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
    • F23G5/20—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having rotating or oscillating drums
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00—Waste feed arrangements
    • F23G2205/16—Waste feed arrangements using chute
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00—Waste feed arrangements
    • F23G2205/18—Waste feed arrangements using airlock systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/12—Sludge, slurries or mixtures of liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/28—Plastics or rubber like materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2900/00—Special features of, or arrangements for incinerators
    • F23G2900/52001—Rotary drums with co-current flows of waste and gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2900/00—Special features of, or arrangements for incinerators
    • F23G2900/54401—Feeding waste in containers, bags or barrels

Definitions

  • the invention relates to a plant for the combustion of gaseous, liquid and solid hazardous waste according to the preamble of claim 1.
  • Systems of this type are used to remove waste which is generated in particular in industry, in particular those of a toxic, pathogenic or flammable type.
  • DE-A-3 625 397 discloses a system of the generic type with an afterburner chamber which has a uniform rectangular cross section in the lower end region and the central region. To support the turbulence, the afterburning chamber tapers in the upper end area, so that the flow accelerates there and becomes more turbulent. Two burners are installed in the lower end area, each of which has a tangential component. These components cause eddy currents directed against each other, which cause thorough mixing in the chamber.
  • the invention is therefore based on the object of designing a generic afterburning chamber in such a way that the residence time in it is as long as possible.
  • the invention provides an afterburning chamber in which a strong vortex flow is superimposed on the vertical flow, which ensures that the chamber is not left too quickly, but that long residence times result, even at relatively high flow velocities. This achieves a very good burnout, which above all ensures thorough removal of toxic substances.
  • the rotary kiln is also relieved, so that there is no throttling of the temperature and it can also be dimensioned somewhat smaller.
  • the incinerator comprises, as an essential part, a rotary kiln 1 and an afterburning chamber 2, in the latter of which the flue gases generated in the rotary kiln 1 during combustion of the waste are completely burned out.
  • the rotary kiln 1 has a water-cooled end wall 3 on the inlet side, on which a filling device 4 for solid waste 5 and barrels 6 is arranged.
  • Burner 7 and lances 8 are used to introduce liquid, flammable substances and sludge, polymerizing waste and, depending on the need, of auxiliary fuel;
  • Air nozzles 10 serve to introduce the primary combustion air.
  • the fixed end wall 3 closes off a rotary tube 11 which is supported on bearings 14 and whose speed can be adjusted by means of a drive 12 depending on the type of waste incinerated.
  • the outlet-side end of the rotary tube 11 is an opening 15 with an opening diameter corresponding to the diameter of the rotary tube, which projects through the wall of the afterburning chamber 2 into the lower part thereof.
  • Injection devices 16 for liquid waste, in particular aqueous waste without heating value and secondary air nozzles 17 and an additional auxiliary burner 18 are arranged in the afterburning chamber 2. With the support burner 18 it is ensured that the temperature required for the respective combustion process can be maintained; it is therefore only in operation temporarily.
  • the afterburning chamber 2 is intended to ensure that all substances which have not yet reacted in the rotary tube are completely burned. This afterburning is supported by the secondary air introduced by means of the secondary air nozzles 17. The secondary air has to compensate for the temperature profiles in the afterburning chamber.
  • the gases burned out in the afterburning chamber 2 leave the same upwards in the direction of a boiler system. Afterwards, the gases are cleaned in a filter system and separated from the majority of their remaining solid particles. Solid particles that sink into the lower part of the afterburning chamber 2 are removed from the afterburning chamber by a slag discharge 19.
  • FIG. 2 shows a plant according to the invention for the incineration of hazardous waste.
  • the rotary tube 11 of the rotary tube furnace 1 is only partially shown, since this part of the system is carried out unchanged compared to the known systems.
  • a combustion chamber 20 now connects to the rotary tube 11.
  • parts of the resulting hazardous waste in particular gaseous and liquid, mostly high-calorie substances, are burned in the combustion chamber 20.
  • a device 22 for introducing the substances mentioned is installed in the lower part 21 of the combustion chamber 20, which device can comprise one or more burners 23. These burners are arranged in such a way that the gaseous and liquid wastes are injected in the center of the vertical flow which forms in the combustion chamber 20.
  • the combustion chamber 20 is essentially designed as a standing, tubular chamber which narrows conically in the lower part 21.
  • this lower part 21 there is also the mouth 15 of the rotary tube 11 of the rotary tube furnace. Since the rotary tube 15 rotates, a sealing device 24 is installed to seal the mouth 15 against the wall 24 of the combustion chamber 20, which seals the slide by means of sliding shoes on the rotary tube 11 and was also used by the applicant in known systems for the incineration of hazardous waste.
  • a slag discharge 19 is provided, through which slag sinking in the combustion chamber 20 can be removed.
  • nozzles for the entry of the secondary air (not shown) and lances for the introduction of liquid waste without or with only a very low calorific value (not shown). These nozzles and lances have an approximately tangentially directed axis and thereby generate a vortex flow in the combustion chamber 20 during operation.
  • a constriction 26 is provided at the upper end of the combustion chamber 20, by means of which the vortex flow is increased by the acceleration of the flue gas flow.
  • the combustion of the remaining part of the waste injected in the center of the combustion chamber 20 creates a flue gas stream which brings additional energy into the combustion chamber 20 for the formation of the vortex flow.
  • the oxygen introduced by the secondary air causes a complete burnout of the smoke gases rising in the combustion chamber 20.
  • the flue gases entering the combustion chamber 20 from below are burned out.
  • the gaseous and liquid waste is also injected from below in the center of the combustion chamber cross section. They are burned from bottom to top while flowing through the combustion chamber 20 and are completely burned out at the upper end 25 of the combustion chamber.
  • the combustion chamber 20 has a conical constriction 26. At this point, the remaining mixture of the flue gases entering the combustion chamber from the rotary tube 11 and the flue gases generated by the combustion of the waste injected directly into the combustion chamber 20 takes place.
  • the combustion chamber 20 is manufactured in a known manner.
  • a refractory lining is introduced, which can be bricked in a known manner from, for example, firebricks.
  • the rotary tube 11 is also designed in the same way.
  • the combustion chamber 20 has a greater height than the known post-combustion chambers; however, since other parts of the entire system are even taller, there is no disadvantage. Rather, the length of the combustion chamber 20, its tubular design and dimensioning and the arrangement of the secondary air nozzles result in a flow in the combustion chamber 20, which up to the upper end 25 of the combustion chamber 20 causes an extremely effective combustion of the flue gases, that of a known system with a rotary kiln and afterburner at least.

Claims (3)

  1. Installation pour l'incinération de déchets spéciaux gazeux, liquides et solides comprenant un four tubulaire rotatif (1) et une chambre de combustion (20), dans le secteur d'extrémité inférieur (21) de laquelle débouchent le four tubulaire rotatif (1) et au moins un brûleur (23) pour l'introduction de parties gazeuses et liquides des déchets à incinérer, caractérisée en ce que la chambre de combustion (20) est conçue au-dessus du secteur d'extrémité inférieur par un tube cylindrique vertical de section constante, se rétrécit en cône vers le bas dans le secteur d'extrémité inférieur (21) et se rétrécit également en cône à l'extrémité supérieure (25) et présente ensuite une transition vers un canal élargi, ce qui forme un étranglement (26) et en ce que dans la paroi de la chambre de combustion (20) dans le secteur de section constante sont montées des lances dont les axes sont orientés de façon approximativement tangentielle par rapport à la paroi de la chambre de combustion (20) pour l'acheminement de déchets liquides sans valeur calorifique ou de très faible valeur calorifique afin de produire une circulation turbulente.
  2. Installation selon la revendication 1, caractérisée en ce que des tuyères sont montées dans la paroi de la chambre de combustion (20) ; tuyères dont les axes sont orientés de façon approximativement tangentielle par rapport à la paroi de la chambre de combustion (20) pour l'injection d'air secondaire.
  3. Installation selon la revendication 1 ou 2, caractérisée en ce que le brûleur (23), au nombre d'un au moins, est orienté en direction de l'axe de la chambre de combustion (20).
EP89112462A 1988-07-29 1989-07-07 Installation pour brûler des déchets spéciaux Expired - Lifetime EP0353491B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89112462T ATE95291T1 (de) 1988-07-29 1989-07-07 Anlage zur verbrennung von sondermuell.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2892/88A CH679328A5 (fr) 1988-07-29 1988-07-29
CH2892/88 1988-07-29

Publications (2)

Publication Number Publication Date
EP0353491A1 EP0353491A1 (fr) 1990-02-07
EP0353491B1 true EP0353491B1 (fr) 1993-09-29

Family

ID=4243946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89112462A Expired - Lifetime EP0353491B1 (fr) 1988-07-29 1989-07-07 Installation pour brûler des déchets spéciaux

Country Status (7)

Country Link
US (1) US5003893A (fr)
EP (1) EP0353491B1 (fr)
JP (1) JPH0730898B2 (fr)
AT (1) ATE95291T1 (fr)
CH (1) CH679328A5 (fr)
DE (1) DE58905747D1 (fr)
ES (1) ES2043974T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224571C2 (de) * 1992-07-24 1994-06-16 Babcock Anlagen Gmbh Drehrohrofen
DE4439670A1 (de) * 1994-11-07 1996-05-09 Bayer Ag Verfahren zur thermischen Oxidation von flüssigen Abfallstoffen
DE19650785C2 (de) * 1996-12-06 1998-12-24 Steinmueller Gmbh L & C Verfahren zum Verbrennen von Brenngut in einem Drehrohrofen und Drehrohrofen zur Durchführung des Verfahrens
DE10036410B4 (de) * 2000-07-26 2013-07-25 Basf Se Verfahren und Vorrichtung zum Ausbrand von Gut in einem Drehrohrofen
JP4509695B2 (ja) * 2004-07-28 2010-07-21 月島環境エンジニアリング株式会社 廃液焼却処理方法
JP6772004B2 (ja) * 2016-09-05 2020-10-21 Ｊｘ金属株式会社 燃焼処理装置及びその操業方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2706395A (en) * 1955-04-19 Flue starting plate
DE1254801B (de) * 1963-05-15 1967-11-23 Basf Ag Verfahren und Anlage zum Verbrennen fester, fluessiger oder teigiger Stoffe
DE1950975A1 (de) * 1969-10-09 1971-04-15 Clean Air Controls Inc Verbrennungsofen
US3664277A (en) * 1970-07-31 1972-05-23 Carborundum Co On-site incinerator
US3785306A (en) * 1972-02-15 1974-01-15 J Jaget Method and apparatus for incinerating refuse
DE2242012C3 (de) * 1972-08-23 1975-10-16 Mannesmann Ag, 4000 Duesseldorf Verfahren zur gemeinsamen Entsorgung von aus Industriemüll und Haushaltsmüll bestehenden Abfällen sowie Klärschlamm
US3842762A (en) * 1973-07-13 1974-10-22 Grumman Ecosyst Corp Apparatus for disposing of solid wastes
CH570584A5 (fr) * 1974-05-16 1975-12-15 Von Roll Ag
JPS5114631U (fr) * 1974-07-20 1976-02-03
US3937154A (en) * 1974-08-28 1976-02-10 Consumat Systems, Inc. Afterburner apparatus for incinerators or the like
JPS5387581A (en) * 1977-01-11 1978-08-02 Mitsui Eng & Shipbuild Co Ltd Apparatus for fusing and combusting waste plastics
JPS5815832U (ja) * 1981-07-24 1983-01-31 三菱重工業株式会社 産業廃棄物等の焼却炉におけるロ−タリキルン羽口部冷却装置
CN1004224B (zh) * 1984-12-24 1989-05-17 千代田化工建设株式会社 焚烧熔化装置
US4583469A (en) * 1985-06-17 1986-04-22 Sani-Therm, Inc. Incinerator
DE3625397A1 (de) * 1986-07-26 1988-02-04 Gutehoffnungshuette Man Nachbrennkammer hinter einem verbrennungsofen einer verbrennungseinrichtung fuer chemischen abfall
US4768445A (en) * 1986-10-17 1988-09-06 Man Gutehoffnungshutte Gmbh Waste incinerator construction
FR2605724B1 (fr) * 1986-10-23 1991-04-12 Tunzini Nessi Entreprises Equi Dispositif d'extraction des dechets solides d'une usine d'incineration
US4763583A (en) * 1987-01-09 1988-08-16 M & S Engineering & Manufacturing Co., Inc. Self-sustaining wet waste incinerator
DE3703855A1 (de) * 1987-02-07 1988-08-18 Gutehoffnungshuette Man Verbrennungsanlage fuer abfallstoffe

Also Published As

Publication number Publication date
DE58905747D1 (de) 1993-11-04
ES2043974T3 (es) 1994-01-01
JPH02154910A (ja) 1990-06-14
US5003893A (en) 1991-04-02
EP0353491A1 (fr) 1990-02-07
CH679328A5 (fr) 1992-01-31
ATE95291T1 (de) 1993-10-15
JPH0730898B2 (ja) 1995-04-10

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