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WO1997001730A1 - Generateur de gaz a flux continu - Google Patents

Generateur de gaz a flux continu Download PDF

Info

Publication number
WO1997001730A1
WO1997001730A1 PCT/CA1996/000419 CA9600419W WO9701730A1 WO 1997001730 A1 WO1997001730 A1 WO 1997001730A1 CA 9600419 W CA9600419 W CA 9600419W WO 9701730 A1 WO9701730 A1 WO 9701730A1
Authority
WO
WIPO (PCT)
Prior art keywords
gases
afterburner
floor
air
feedstock
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.)
Ceased
Application number
PCT/CA1996/000419
Other languages
English (en)
Inventor
Orville V. Burkinshaw
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU61839/96A priority Critical patent/AU6183996A/en
Publication of WO1997001730A1 publication Critical patent/WO1997001730A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F23G5/24—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a vertical, substantially cylindrical, combustion chamber
    • F23G5/26—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a vertical, substantially cylindrical, combustion chamber having rotating bottom
    • 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
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F23G5/0276—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage using direct heating
    • 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

Definitions

  • This invention involves amendments to existing oxygen starved Gas Generators by adding a continuous feed auger that delivers a uniform amount of feedstock on to the top step of a specially designed rotating cone shaped burner floor. As the floor rotates at the desired speed with each one third of a round the feedstock is stirred twice and a scraper then moves the ' burning material down to the next step. The longer exposure to heat greatly increases the conversion rate of solids to gases while causing little or no turbulence that could raise particulate levels.
  • a second related and important aspect of this invention described herein was developed to handle the increased amount of gases without creating more particulates or SO 2 emissions. This was achieved by designing an afterburner with more retention time and a more complete mixing of the gases and air. The resulting higher temperature in the afterburner improves its efficiency, while the longer retention time virtually eliminates the combustible particulates and enhances the destruction of unwanted toxins and/or other undesirable elements that may be present in MSW.
  • D(1) Feedstock consisting of Solid Municipal Waste (MSW), tires, wood waste, plastic or other combustible materials are coarse shredded to approximately four inches (1) and conveyed into a hopper (2) that feeds the variable speed auger (3) (FIGURE 1).
  • the feedstock material (1) is fed into the primary chamber (4) by the auger (3) on to the larger top step (5) of the rotating floor.
  • the decomposition process commences immediately (FIGURE 1).
  • the material on the top step is stirred twice by teeth (6) and (7) to improve exposure at 1/3 of a turn intervals and is then scraped off each step onto the next lower step by fixed scrapers (8).
  • This procedure is similar on all the steps (9) on the cone shaped rotating floor in the primary chamber (FIGURE ⁇ .
  • the ashes are removed from the ash chamber (12) by an auger (13) that operates intermittently as required to keep the ash chamber from overfilling. At all times a bed of ash is retained to be sure the combustible material is oxidized and the heat is retained (FIGURE 1).
  • waste heat generated by the burning of the gases can be exhausted out the stack (21) or drawn through steam boilers with an I.D. Fan to provide steam heat or energy to drive a turbine to power a generator. Thus waste to electric energy is achieved (FIGURE 1).
  • the inventions set out herein have the ability to economically convert wastes to electricity, one of the most important commodities in use day and night without which no country on earth can develop industries or provide a reasonable standard of living for its people.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Les plus efficaces des différents types brûleurs sont ceux dont la chambre primaire est appauvrie en oxygène et qui convertissent les solides en gaz à brûler dans une chambre de postcombustion. Toutefois, pour être économique, ce meilleur système a besoin d'une capacité horaire accrue. L'accroissement de cette capacité sans recours à l'invention provoque normalement des émissions de particules et de SO2 supérieures à ce qu'autorisent les dispositions légales et administratives. L'invention résout ces problèmes en utilisant un fond de chambres de combustion rotatif de forme conique dont la vitesse de rotation est variable comme pour ceux destinés aux unités (4) appauvries en oxygènes injectant en continu le substrat (1) au moyen d'une vis sans fin (3) à vitesse variable sur le fond rotatif de la chambre de combustion conique. Ici, le fond comporte une série de marches (9) d'escalier dont le nombre est fonction des dimensions de l'unité, ce qui permet d'exposer les solides à la chaleur et d'accélérer le processus de gazéification. L'accroissement de la production de gaz a nécessité l'invention d'une meilleure chambre de postcombustion (15) caractérisée par une aptitude améliorée à mélanger le gaz à l'air, par une période de rétention suffisante garantissant la complète combustion des particules combustibles, et par une meilleure aptitude à détruire d'autres éléments indésirables à une température élevée pouvant atteindre 2400 °F.
PCT/CA1996/000419 1995-06-27 1996-06-25 Generateur de gaz a flux continu Ceased WO1997001730A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU61839/96A AU6183996A (en) 1995-06-27 1996-06-25 Continuous flow gas generator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA 2152686 CA2152686A1 (fr) 1995-06-27 1995-06-27 Generateur de gaz a debit constant
CA2,152,686 1995-06-27

Publications (1)

Publication Number Publication Date
WO1997001730A1 true WO1997001730A1 (fr) 1997-01-16

Family

ID=4156125

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1996/000419 Ceased WO1997001730A1 (fr) 1995-06-27 1996-06-25 Generateur de gaz a flux continu

Country Status (3)

Country Link
AU (1) AU6183996A (fr)
CA (1) CA2152686A1 (fr)
WO (1) WO1997001730A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1055857A (en) * 1965-01-04 1967-01-18 Salem Brosius Inc Method and apparatus for treating carbonaceous material
US3867261A (en) * 1973-08-10 1975-02-18 Salem Corp Fuel incineration system for calciner
GB1561938A (en) * 1976-11-02 1980-03-05 Riken Piston Ring Ind Co Ltd Incinerators
US4417528A (en) * 1982-09-29 1983-11-29 Mansfield Carbon Products Inc. Coal gasification process and apparatus
EP0156363A2 (fr) * 1984-03-30 1985-10-02 Hans Dr. Viessmann Appareil de combustion à gazéification du combustible solide
EP0482306A2 (fr) * 1990-10-20 1992-04-29 Hoval Interliz Ag Procédé et dispositif pour la combustion des copeaux de bois en produisant des fumées pauvres en substances nocives et à puissance de combustion continûment réglable
CA2122399A1 (fr) * 1994-04-28 1995-10-29 Orville Victor Burkinshaw Systeme de conversion de dechets environnementaux

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1055857A (en) * 1965-01-04 1967-01-18 Salem Brosius Inc Method and apparatus for treating carbonaceous material
US3867261A (en) * 1973-08-10 1975-02-18 Salem Corp Fuel incineration system for calciner
GB1561938A (en) * 1976-11-02 1980-03-05 Riken Piston Ring Ind Co Ltd Incinerators
US4417528A (en) * 1982-09-29 1983-11-29 Mansfield Carbon Products Inc. Coal gasification process and apparatus
EP0156363A2 (fr) * 1984-03-30 1985-10-02 Hans Dr. Viessmann Appareil de combustion à gazéification du combustible solide
EP0482306A2 (fr) * 1990-10-20 1992-04-29 Hoval Interliz Ag Procédé et dispositif pour la combustion des copeaux de bois en produisant des fumées pauvres en substances nocives et à puissance de combustion continûment réglable
CA2122399A1 (fr) * 1994-04-28 1995-10-29 Orville Victor Burkinshaw Systeme de conversion de dechets environnementaux

Also Published As

Publication number Publication date
CA2152686A1 (fr) 1996-12-28
AU6183996A (en) 1997-01-30

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