EP0280091A1 - Incinerator and method for incineration - Google Patents

Incinerator and method for incineration Download PDF

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Publication number
EP0280091A1
EP0280091A1 EP88101649A EP88101649A EP0280091A1 EP 0280091 A1 EP0280091 A1 EP 0280091A1 EP 88101649 A EP88101649 A EP 88101649A EP 88101649 A EP88101649 A EP 88101649A EP 0280091 A1 EP0280091 A1 EP 0280091A1
Authority
EP
European Patent Office
Prior art keywords
substances
stoker
incinerator
fluidized bed
burning
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Withdrawn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
EP88101649A
Other languages
German (de)
English (en)
French (fr)
Inventor
Takehiko Motomura
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.)
IHI Corp
Original Assignee
IHI Corp
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 IHI Corp filed Critical IHI Corp
Publication of EP0280091A1 publication Critical patent/EP0280091A1/en
Withdrawn legal-status Critical Current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
    • F23G5/20—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
    • 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
    • F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed

Definitions

  • This invention relates to an incinerator which is utilized for incinerating municipal and industrial wastes and a method for incinerating such substances. More specifical­ly, it is concerned with an incinerator the structure of which with regard to after-burning is improved, and a method for incineration to be conducted in such an inci­nerator.
  • Figure 3 illustrates one example of a known mechanical in­cinerator.
  • substances to be in­cinerated such as municipal and industrial wastes which are supplied into a hopper chute b of the mechanical inci­nerator a are introduced into a main stoker c and undergo a primary combustion while the main stoker c rotates.
  • the substances burned in the main stoker c are then introduced into an after-burning substoker d which is connected to the downstream end of the main stoker c so as to undergo a se­condary combustion therein.
  • ashes together with unburned materials and incombustible matters are water-cooled and discharged through a discharging port e connected to the downstream end of the substoker d.
  • Numeral f designates a space where firing takes place by firing means, such as burners.
  • Figure 3 illustrates another example of the prior art. As shown in figure 3, a main stoker c where a main or primary combustion takes place and a substoker d where after-­ or secondary combustion takes place are inclined downwardly in sequence.
  • a mechanical incinerator a of the above-mentioned type has the following disadvantages.
  • the sub­stances contain moisture so that dehydration is necessary in order to more easily handle the substances.
  • the object of this invention is to provide an incinerator which is capable of realizing a desired combustion per­formance without care on operation or special controlling equipments.
  • Another object is to provide an incinerator from which ashes are discharged in dried state, and a method therefor.
  • Still another object is to provide an incinerator which does not require special preparations or preprocessings such as breaking and crushing of the substances to be incinerated, and which is capable of simplifying a manipu­lation concerned with combustion.
  • Claim 2 describes a pre­ferred further development of the incinerator of claim 1.
  • this combustion stoker 3 To the down­stream end of this combustion stoker 3 there is connected a fluidized bed incinerator 4 where unburned matters which are already pre-burned in the stoker 3 and carried down­stream thereof undergo after-burning.
  • the stoker 3 is connected to penetrate the side wall of the fluidized bed incinerator 4 which surrounds and defines the firing space formed in its upper section.
  • Said hopper chute 2 and the stoker 3 connected thereto are both inclined downwardly toward the fluidized bed incine­rator 4.
  • Numeral 6 designates air diffuser tubes for supplying air into the fluidized bed incinerator 4, numeral 7 a dischar­ging mechanism for carrying sand or the like out of the in­cinerator, and numeral 8 an exhaust port for discharging substances including ashes, incombustible materials and sand.
  • substances to be incinerated such as municipal and industrial wastes are introduced into the stoker 3.
  • substances to be incinerated such as municipal and industrial wastes are introduced into the stoker 3.
  • those substances are ignited at its entire surface and undergo a mechanical pre-combustion.
  • ashes are removed through gaps between the water tubes which are separated from each other.
  • the unburned substances are agitated and introduced into the fluidized bed incinerator 4 because the stoker 3 is inclined downwardly. Since the inlet opening of the incinerator 4 is located at a high level, the manipulation of combustion is simplified and drawbacks of the conventional incinerator are eliminated.
  • this equipment does not require a crane for handling the substances to be incinerated. Furthermore, preparation or pretreatment such as breaking and crushing the substances is not necessary.
  • the ash can be discharged in dried state from the incinerator.
  • the incinerator of this invention combines the advantages of both mechanical incinerators and fluidized bed incinera­tors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Gasification And Melting Of Waste (AREA)
EP88101649A 1987-02-04 1988-02-04 Incinerator and method for incineration Withdrawn EP0280091A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP22295/87 1987-02-04
JP2229587A JPS63194115A (ja) 1987-02-04 1987-02-04 焼却炉

Publications (1)

Publication Number Publication Date
EP0280091A1 true EP0280091A1 (en) 1988-08-31

Family

ID=12078755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101649A Withdrawn EP0280091A1 (en) 1987-02-04 1988-02-04 Incinerator and method for incineration

Country Status (2)

Country Link
EP (1) EP0280091A1 (ja)
JP (1) JPS63194115A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999049265A1 (en) * 1998-03-23 1999-09-30 Ansaldo Vølund A/S Method of incinerating waste material, and incinerator for carrying out the method
US6749006B1 (en) 2000-10-16 2004-06-15 Howmet Research Corporation Method of making investment casting molds

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2577232B2 (ja) * 1987-02-27 1997-01-29 日精エー・エス・ビー機械株式会社 合成樹脂容器の首部耐熱構造
EP0415109B1 (en) * 1989-07-31 1995-09-20 Yamamura Glass Co. Ltd. Bottle neck structure and manufacturing method therefor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3822651A (en) * 1973-09-04 1974-07-09 D Harris Water cooled kiln for waste disposal
US4060042A (en) * 1975-05-17 1977-11-29 Fire Victor Holding S.A. Incinerator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3822651A (en) * 1973-09-04 1974-07-09 D Harris Water cooled kiln for waste disposal
US4060042A (en) * 1975-05-17 1977-11-29 Fire Victor Holding S.A. Incinerator

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 4, no. 6 (M-88), 18th January 1980, page 2 M 88; & JP-A-54 141 068 (MITSUBISHI JUKOGYO K.K.) 01-11-1979 *
PATENT ABSTRACTS OF JAPAN, vol. 6, no. 146 (M-147)[1024], 5th August 1982; & JP-A-57 065 514 (ISHIKAWAJIMA HARIMA JUKOGYO K.K.) 21-04-1982 *
PATENT ABSTRACTS OF JAPAN, vol. 8, no. 73 (M-287)[1510], 5th pril 1984; & JP-A-58 219 316 (EBARA SEISAKUSHO K.K.) 20-12-1983 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999049265A1 (en) * 1998-03-23 1999-09-30 Ansaldo Vølund A/S Method of incinerating waste material, and incinerator for carrying out the method
US6749006B1 (en) 2000-10-16 2004-06-15 Howmet Research Corporation Method of making investment casting molds
GB2369594B (en) * 2000-10-16 2004-09-22 Howmet Res Corp Method of making investment casting molds

Also Published As

Publication number Publication date
JPS63194115A (ja) 1988-08-11

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