FR2334914A1 - Smoke reduction system for furnace - has dust precipitator with precipitator and fluidised bed from which particles reenter furnace - Google Patents

Smoke reduction system for furnace - has dust precipitator with precipitator and fluidised bed from which particles reenter furnace

Info

Publication number
FR2334914A1
FR2334914A1 FR7537784A FR7537784A FR2334914A1 FR 2334914 A1 FR2334914 A1 FR 2334914A1 FR 7537784 A FR7537784 A FR 7537784A FR 7537784 A FR7537784 A FR 7537784A FR 2334914 A1 FR2334914 A1 FR 2334914A1
Authority
FR
France
Prior art keywords
furnace
precipitator
particles
reduction system
hopper
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.)
Granted
Application number
FR7537784A
Other languages
French (fr)
Other versions
FR2334914B1 (en
Inventor
Albert Rebours
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.)
Air Industrie SA
Original Assignee
Air Industrie SA
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 Air Industrie SA filed Critical Air Industrie SA
Priority to FR7537784A priority Critical patent/FR2334914A1/en
Publication of FR2334914A1 publication Critical patent/FR2334914A1/en
Application granted granted Critical
Publication of FR2334914B1 publication Critical patent/FR2334914B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/027—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using cyclone separators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electrostatic Separation (AREA)

Abstract

A furnace (1) has its products of combustion led to a precipitator (5). The gases leave via a chimney while the solids collect in a hopper (6). They pass through a valve (9) into a second hopper shaped container (10) where they are fluidised. A venturi (17, 18) entrains air through grilles (11, 12) and carries the dust to a nozzle (21) which is designed to emit the fluidised particles faster than their speed of flame propagation. High and low level indicators on the hopper (6) are used to control the process. Size reduction of the unburnt particles by up to 80 per cent is possible.
FR7537784A 1975-12-10 1975-12-10 Smoke reduction system for furnace - has dust precipitator with precipitator and fluidised bed from which particles reenter furnace Granted FR2334914A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7537784A FR2334914A1 (en) 1975-12-10 1975-12-10 Smoke reduction system for furnace - has dust precipitator with precipitator and fluidised bed from which particles reenter furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7537784A FR2334914A1 (en) 1975-12-10 1975-12-10 Smoke reduction system for furnace - has dust precipitator with precipitator and fluidised bed from which particles reenter furnace

Publications (2)

Publication Number Publication Date
FR2334914A1 true FR2334914A1 (en) 1977-07-08
FR2334914B1 FR2334914B1 (en) 1980-03-28

Family

ID=9163572

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7537784A Granted FR2334914A1 (en) 1975-12-10 1975-12-10 Smoke reduction system for furnace - has dust precipitator with precipitator and fluidised bed from which particles reenter furnace

Country Status (1)

Country Link
FR (1) FR2334914A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000600A1 (en) * 1982-07-23 1984-02-16 Comfort Heiztechnik Method and device for supplying solid fuels to consumers
FR2537701A1 (en) * 1982-12-08 1984-06-15 Creusot Loire METHOD AND INSTALLATION FOR RECYCLING SOLID ENDS IN A FLUIDIZED BED
EP0142437A2 (en) * 1983-11-09 1985-05-22 Manutair Moller Method and device for reinjecting flyash particles into a boiler for solid fuel
FR2559239A2 (en) * 1984-02-06 1985-08-09 Manutair Moller Device for reinjecting escaped particles into a solid fuel boiler
EP0314910A2 (en) * 1987-11-04 1989-05-10 Deutsche Babcock Energie- Und Umwelttechnik Aktiengesellschaft Burner system for NOx-poor combustion of heavy oil

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000600A1 (en) * 1982-07-23 1984-02-16 Comfort Heiztechnik Method and device for supplying solid fuels to consumers
FR2537701A1 (en) * 1982-12-08 1984-06-15 Creusot Loire METHOD AND INSTALLATION FOR RECYCLING SOLID ENDS IN A FLUIDIZED BED
EP0112237A1 (en) * 1982-12-08 1984-06-27 Creusot-Loire Method and apparatus for the recirculation of uncombusted solid material in a fluidized bed
EP0142437A2 (en) * 1983-11-09 1985-05-22 Manutair Moller Method and device for reinjecting flyash particles into a boiler for solid fuel
WO1985002246A1 (en) * 1983-11-09 1985-05-23 Manutair Moller Process and device for reinjecting flown-off particles into a solid fuel boiler
EP0142437A3 (en) * 1983-11-09 1985-09-18 Manutair Moller Method and device for reinjecting flyash particles into a boiler for solid fuel
FR2559239A2 (en) * 1984-02-06 1985-08-09 Manutair Moller Device for reinjecting escaped particles into a solid fuel boiler
EP0314910A2 (en) * 1987-11-04 1989-05-10 Deutsche Babcock Energie- Und Umwelttechnik Aktiengesellschaft Burner system for NOx-poor combustion of heavy oil
EP0314910A3 (en) * 1987-11-04 1991-08-28 Deutsche Babcock Energie- Und Umwelttechnik Aktiengesellschaft Burner system for NOx-poor combustion of heavy oil

Also Published As

Publication number Publication date
FR2334914B1 (en) 1980-03-28

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse