EP0966635B1 - Anlage und verfahren zur verbrennung von industrie- und hausmüll und schlamm - Google Patents

Anlage und verfahren zur verbrennung von industrie- und hausmüll und schlamm Download PDF

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Publication number
EP0966635B1
EP0966635B1 EP98900534A EP98900534A EP0966635B1 EP 0966635 B1 EP0966635 B1 EP 0966635B1 EP 98900534 A EP98900534 A EP 98900534A EP 98900534 A EP98900534 A EP 98900534A EP 0966635 B1 EP0966635 B1 EP 0966635B1
Authority
EP
European Patent Office
Prior art keywords
sludge
waste
infeed
combustion chamber
chute
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
EP98900534A
Other languages
English (en)
French (fr)
Other versions
EP0966635A1 (de
Inventor
Siegfried Binner
Gunnar Baltsen
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.)
Babcock and Wilcox Volund AS
Original Assignee
Ansaldo Volund AS
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 Ansaldo Volund AS filed Critical Ansaldo Volund AS
Publication of EP0966635A1 publication Critical patent/EP0966635A1/de
Application granted granted Critical
Publication of EP0966635B1 publication Critical patent/EP0966635B1/de
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
    • 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
    • F23G5/44—Details; Accessories
    • F23G5/442—Waste feed arrangements
    • F23G5/444—Waste feed arrangements for solid waste
    • 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
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/70—Blending
    • F23G2201/702—Blending with other waste
    • 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

Definitions

  • the present invention relates to a method for incineration of industrial and household waste and sludge with admixed materials, comprising infeed through a generally vertically directed waste infeed chute, a waste infeed means at the bottom of the chute for advancing the waste in a generally horizontal direction, possibly an infeed sluice and a downstream located combustion chamber, comprising a movable grate system at the bottom, for advancing, drying, igniting, burning, and outbuming the waste in the combustion chamber before the slag is conveyed out of the combustion chamber down into the slag chute.
  • the waste infeed chute is generally directed vertically in order that the waste can slide downwards through the chute by gravity, while the waste infeed means in the bottom of the chute removes, advances and feeds the waste lying at the bottom into the combustion chamber, possibly through an infeed sluice.
  • Known waste infeed means at the bottom of the waste infeed chute are e.g. one or more hydraulic pistons, apron feeders, moving grates or actual combustion grates. known e.g. from US patent No. 4,494,469 and DK patent No. 170,493. Characteristic for the known waste infeed means is e.g. that complete filled. waste bags and waste of similar bulk size easily and undivided can be fed into the combustion chamber, potentially via an infeed sluice, after having passed down through the waste infeed chute, in which the waste functions as a relatively dense plug, securing only small amounts of combustion air following the waste into the combustion chamber, avoiding propagation of the combustion back into the waste infeed chute.
  • the combustion takes place in the oven chamber at a pressure lower than ambient pressure, e.g. secured by placing an induced draft fan for the flue gas immediately in front of the chimney of the incineration plant.
  • Special sludge ovens for combustion of waste water sludge are known, but will normally require supply of supplementary fuel, e.g. in the form of oil or gas.
  • the sludge When feeding the sludge through the ceiling as well as through the wall of the oven, directly into the waste combustion chamber, the sludge falls through a flue gas stream at a temperature of approximately 1000°C, drying out and carrying away many of the fine-grained sludge particles, so that the content of dust in the flue gas is raised remarkably, which is unconvenient, the boiler after the combustion oven being further smudged and the flue gas cleaning demand being increased.
  • JP-patent No. 1,305,214 it is known to provide a waste incineration plant with a sludge throwing-in opening in the waste infeed chute and to provide a throwing-in apparatus placed in the waste infeed chute for dispersively throwing sewage sludge into the sludge throwing-in opening.
  • the device used for delivering sludge to the throwing-in apparatus is a sludge pump with piping.
  • the only purpose specified for the throwing-in apparatus is to disperse the sludge evenly across the waste layer so that a constant mixture between the sewage sludge and the waste is obtained and so that as much sludge as possible with e.g. 70-80% water content can be fed in with the waste without disturbing the combustion too much.
  • the dispersion is obtained by means of a number of inlet openings and the same number of ball valves or injection pistons controlled automatically or manually.
  • This known technique does not address odour problems, dust problems, unhygienic working conditions, other working environment problems and the potentially associated occupational health problems. Nor does this known technique address controlled admixing into the sludge of other waste material which can not readily be thrown into the waste silo together with municipal and industrial waste on conventional waste incinerator plants.
  • the sludge with added further waste materials is fed into the waste infeed chute or infeed sluice, at a position in which there exists a pressure lower than ambient pressure, when the plant is working so that unhygienic dust is sucked into the cold waste and the odour materials are sucked into the combustion chamber, whereby they are burned and removed.
  • the sludge with added further waste materials is fed into the combustion chamber in such a way that the development of dust during the combustion process is minimized and the infeed of waste is still performed optimally with respect to combustion, as normally, without any cumbersome, expensive and unhygienic comminution of the waste.
  • the infeed is performed close to the bottom part of the waste infeed chute or in the infeed sluice, so that generally all of the time waste is present in the infeed chute or infeed sluice at the level of the mouth of the infeed tube.
  • the sludge By providing the infeed tube for sludge in the wall of the waste infeed chute facing the combustion chamber or in the ceiling of the infeed sluice, the sludge will always be positioned on top of the waste being fed into the waste combustion chamber and thus being dried out immediately when entering the combustion chamber.
  • infeed tubes evenly distributed over the width of the waste infeed chute or sluice, respectively, whereby the sludge can be distributed evenly over the waste.
  • the infeed tube or tubes are preferably connected to a pipeline for the supply of sludge from a pressure-feed applicance upstream connected to a silo for temporary storage of sludge.
  • the infeed of sludge can be performed almost hermetically closed with respect to the surroundings.
  • the pipeline for supply of sludge may be provided with one or more ring nozzles, for lubricating the inner wall of the pipeline with e.g. a polymer for reduction of the sliding friction between sludge and pipeline.
  • the sludge to be incinerated in accordance with the invention may be selected from the group consisting of sludge from waste water cleaning, crude oil sludge, petrochemical waste products, animal sludge, liquid waste, slurry and liquid manure or mixtures thereof, with admixture of materials selected from the group consisting of grate screanings, boiler ash, filter ash, flue gas cleaning products, other waste products from waste incineration plants, shredded waste, plastic waste, car fluff, and stabilizers reducing dust and/or vapour generation and/or unwanted chemical reactions in the combustion chamber.
  • the pipelines debouching in separate infeed tubes or in common infeed tubes via a manifold, it is possible to control the infeed speed for the different mixtures, thereby controlling the combustion in the combustion chamber.
  • the control can be relatively fast reacting as the infeed of the sludge is placed very close to the combustion process in the combustion chamber.
  • the sludge is supplied to the incineration plant via a hermetically closed supply system.
  • the infeed quantity of the sludge can be used as one parameter for controlling the burning of waste in the combustion chamber.
  • the method preferably comprises pressure-feeding of sludge of varying composition, with admixture of further material to be disposed of or material providing stabilization of the sludge mixture.
  • the incineration plant shown in Fig. 1 comprises a waste infeed chute 1 for industrial and household waste and a grate system 2 for advancing the waste through the inlet to the combustion chamber and for advancing the waste in the combustion chamber 3, positioned downstream of the chute 1.
  • the waste infeed chute 1 comprises an infeed tube 4 for supply of sludge. The infeed tube is placed close to the bottom part of the waste infeed chute 1 and in the wall in the waste infeed chute 1 facing the combustion chamber 3.
  • the infeed tube 4 for supply of sludge is, as shown in the drawing, positioned to debouch in a downwardly slanted angle into the waste infeed chute 1.
  • Fig. 2 shows how four infeed tubes 4 are connected to a pipeline 5 for supply of sludge via a manifold 6, intended to provide a uniform distribution of the added sludge across the four infeed tubes 4, the sludge being equally distributed across the feeding direction for the grate system 2 in the waste combustion chamber 3.
  • Fig. 3 shows how sludge can be supplied from a storage silo 7 for temporary storage of the sludge, forward to the infeed tube 4 in a hermetically dosed system.
  • a pressure-feed appliance 8 is provided close to the silo 7, and a pipeline 5 is connected between the pressure-feed appliance 8 and the infeed tube 4, the pipeline 5 potentially comprising a ring nozzle 9, for lubricating the inner wall of the pipeline 5 with e.g. a polymer for reduction of the sliding friction between sludge and pipeline 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Gasification And Melting Of Waste (AREA)

Claims (4)

  1. Verbrennungsverfahren von Industrie- und Haushaltsabfall und Schlamm in einer Verbrennungsanlage, das die Schritte umfasst:
    a) Zuführen des Industrie- und Haushaltsabfalls durch einen im Allgemeinen vertikal gerichteten Abfallzuführschacht (1), der Mittel an der Bodenseite des Schachtes (1) zum Vorwärtsbewegen des Abfalls in einer im allgemeinen horizontalen Richtung umfasst, möglicherweise einer Zuführschleuse, und einer downstream befindlichen Verbrennungskammer (3), die ein bewegliches Gittersystem an der Bodenseite zum Vorwärtsbewegen, Trocknen, Zünden, Verbrennen und Ausbrennen des Abfalls in der Verbrennungskammer (3) umfasst,
    b) Zufügen des zu verbrennenden Schlammes durch zumindest ein Zuführrohr (4), das in den Boden des Zuführschachtes (1) oder der Schleuse vorbricht, das Zuführrohr oder Rohre (4) sind mit einer Pipeline (5) zur Schlammversorgung aus einer Druckzuführeinrichtung (8) verbunden, die upstream mit einem Silo zur vorübergehenden Speicherung des Schlammes verbunden ist,
    gekennzeichnet durch den Schritt:
    c) vor Zufügen des Schlammes werden weitere zu entsorgende Materialien dem Schlamm zugefügt.
  2. Verfahren nach Anspruch 1, gekennzeichnet durch beigemischte Materialien, die aus der Gruppe ausgewählt sind, bestehend aus:
    Siebrückstände bzw. Herausgesiebtem,
    Kesselasche,
    Filterasche,
    Verbrennungsgasreinigungsprodukten,
    andere Abfallprodukte aus Abfallverbrennungsanlagen, zerkleinertem Abfall,
    Plastikabfall,
    Autoflaum, und
    Stabilisatoren, welche die Staub- und/oder Dampferzeugung und/oder ungewollte chemische Reaktionen in der Verbrennungskammer (3) reduzieren, oder Mischungen derselben.
  3. Verfahren nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass der Schlamm ausgewählt ist aus der Gruppe, bestehend aus:
    Schlamm aus der Abwasserreinigung,
    Rohölschlamm,
    petrochemischen Abfallprodukten,
    Tierschlamm,
    Flüssigabfall,
    Schlamm, und
    Jauche,
    oder Mischungen derselben.
  4. Verfahren nach einem der vorangegangenen Ansprüche, gekennzeichnet durch den Schritt
    d) Schmieren der inneren Wand der Pipeline (5) für die Schlammversorgung, bei der ein oder mehrere Ringdüsen (8) zum Zufügen des Schmiermittels, wie z.B. einem Polymer, verwendet werden, zur Reduzierung der Gleitreibung zwischen dem Schlamm und der Pipeline (5).
EP98900534A 1997-03-19 1998-01-27 Anlage und verfahren zur verbrennung von industrie- und hausmüll und schlamm Expired - Lifetime EP0966635B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK199700311A DK31197A (da) 1997-03-19 1997-03-19 Affaldsforbrændingsanlæg for industri- og husholdningsaffald samt spildevandsslam
DK31197 1997-03-19
PCT/DK1998/000028 WO1998041795A1 (en) 1997-03-19 1998-01-27 Plant and method for incineration of industrial and household waste and sludge

Publications (2)

Publication Number Publication Date
EP0966635A1 EP0966635A1 (de) 1999-12-29
EP0966635B1 true EP0966635B1 (de) 2001-09-26

Family

ID=8092129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98900534A Expired - Lifetime EP0966635B1 (de) 1997-03-19 1998-01-27 Anlage und verfahren zur verbrennung von industrie- und hausmüll und schlamm

Country Status (8)

Country Link
EP (1) EP0966635B1 (de)
JP (1) JP2001516435A (de)
KR (1) KR100527243B1 (de)
AU (1) AU5550198A (de)
DE (1) DE69801812T2 (de)
DK (2) DK31197A (de)
HK (1) HK1024736A1 (de)
WO (1) WO1998041795A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP2870412A1 (de) 2012-07-06 2015-05-13 Babcock & Wilcox Vølund A/S Beschickungsanlage mit schwingenden gittern
KR101684361B1 (ko) * 2016-03-09 2016-12-08 주식회사 송림 하수 슬러지 혼합 소각 지원 소각 장치
CN106439843B (zh) * 2016-09-08 2019-03-12 南京中特化工动力设备有限公司 石油化工不可回收废弃物无害化处理工艺
CN111550809A (zh) * 2020-04-03 2020-08-18 上海市政工程设计研究总院（集团）有限公司 一种危险废物焚烧进料装置及方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4724776A (en) * 1982-08-03 1988-02-16 Sam Foresto Burning apparatus with means for heating and cleaning polluted products of combustion
JPH0663258B2 (ja) * 1987-12-15 1994-08-22 佐藤工業株式会社 圧送装置
JPH01305214A (ja) * 1988-05-31 1989-12-08 Sanki Eng Co Ltd ごみと下水汚泥の混焼装置
FR2674940B1 (fr) * 1991-05-31 1996-08-09 Paul Gauthier Procede et dispositif pour eliminer des eaux contenant des polluants degradables par la chaleur.
JPH05264023A (ja) * 1992-01-21 1993-10-12 Chugai Ro Co Ltd 脱水汚泥の焼却方法

Also Published As

Publication number Publication date
DK31197A (da) 1998-09-20
KR20000076315A (ko) 2000-12-26
AU5550198A (en) 1998-10-12
WO1998041795A1 (en) 1998-09-24
JP2001516435A (ja) 2001-09-25
DK0966635T3 (da) 2002-01-28
DE69801812T2 (de) 2002-04-11
HK1024736A1 (en) 2000-10-20
KR100527243B1 (ko) 2005-11-09
EP0966635A1 (de) 1999-12-29
DE69801812D1 (de) 2001-10-31

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