FR2307584A1 - Cyclone for sepg. dust from hot furnace gases - with two walls forming air-preheating and gas-cooling space between them - Google Patents

Cyclone for sepg. dust from hot furnace gases - with two walls forming air-preheating and gas-cooling space between them

Info

Publication number
FR2307584A1
FR2307584A1 FR7512250A FR7512250A FR2307584A1 FR 2307584 A1 FR2307584 A1 FR 2307584A1 FR 7512250 A FR7512250 A FR 7512250A FR 7512250 A FR7512250 A FR 7512250A FR 2307584 A1 FR2307584 A1 FR 2307584A1
Authority
FR
France
Prior art keywords
space
cyclone
air
furnace gases
canopy
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Withdrawn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
FR7512250A
Other languages
French (fr)
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.)
Ahlstrom Corp
Original Assignee
Ahlstrom 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 Ahlstrom Corp filed Critical Ahlstrom Corp
Priority to FR7512250A priority Critical patent/FR2307584A1/en
Publication of FR2307584A1 publication Critical patent/FR2307584A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/20—Apparatus in which the axial direction of the vortex is reversed with heating or cooling, e.g. quenching, means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L15/00—Heating of air supplied for combustion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Landscapes

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

Abstract

In the cyclone the space between the two walls constitutes a preheating space for the incoming air for combustion and a cooling space for the furnace gases. There may be baffles in this space, to ensure turbulent flow. Opt., in addn. to the two walls, there is a canopy in the sepn. space in the cyclone. Solids can fall between the edges of the canopy and the inner wall of the cyclone, into the space below the canopy. This space has an inlet and an outlet for air. The inlet is connected to the sapce between the walls and the outlet is connected to the pipe feeding air or oxygen to the furnace. The plant is simpler to construct, takes up less space and costs less than existing plants, because the furnace gases are cooled and the solids are sepd. in the same unit, where heat is transferred efficiently from the furnace gases to the combustion air or oxygen, and where the solids are cooled before being discharged from the separator. In the form with a canopy, solid particles are cooled by direct contact with air.
FR7512250A 1975-04-18 1975-04-18 Cyclone for sepg. dust from hot furnace gases - with two walls forming air-preheating and gas-cooling space between them Withdrawn FR2307584A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7512250A FR2307584A1 (en) 1975-04-18 1975-04-18 Cyclone for sepg. dust from hot furnace gases - with two walls forming air-preheating and gas-cooling space between them

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7512250A FR2307584A1 (en) 1975-04-18 1975-04-18 Cyclone for sepg. dust from hot furnace gases - with two walls forming air-preheating and gas-cooling space between them

Publications (1)

Publication Number Publication Date
FR2307584A1 true FR2307584A1 (en) 1976-11-12

Family

ID=9154194

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7512250A Withdrawn FR2307584A1 (en) 1975-04-18 1975-04-18 Cyclone for sepg. dust from hot furnace gases - with two walls forming air-preheating and gas-cooling space between them

Country Status (1)

Country Link
FR (1) FR2307584A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264735A1 (en) * 1986-10-13 1988-04-27 ASEA Stal Aktiebolag Cyclone for separation of a particulate material from a gas
US4909163A (en) * 1987-12-23 1990-03-20 Abb Stal Ab Method and a device for cooling ashes in a PFBC power plant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264735A1 (en) * 1986-10-13 1988-04-27 ASEA Stal Aktiebolag Cyclone for separation of a particulate material from a gas
US4909163A (en) * 1987-12-23 1990-03-20 Abb Stal Ab Method and a device for cooling ashes in a PFBC power plant

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Legal Events

Date Code Title Description
ST Notification of lapse