EP0200730A1 - Chaudiere avec grille a secousses - Google Patents

Chaudiere avec grille a secousses

Info

Publication number
EP0200730A1
EP0200730A1 EP85900255A EP85900255A EP0200730A1 EP 0200730 A1 EP0200730 A1 EP 0200730A1 EP 85900255 A EP85900255 A EP 85900255A EP 85900255 A EP85900255 A EP 85900255A EP 0200730 A1 EP0200730 A1 EP 0200730A1
Authority
EP
European Patent Office
Prior art keywords
boiler
fuel
grate
shaking grate
shaking
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Withdrawn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
EP85900255A
Other languages
German (de)
English (en)
Inventor
Eyvind Frilund
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.)
Hb-Consult Radgivande Ingenjorer AB
Original Assignee
Hb-Consult Radgivande Ingenjorer AB
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 Hb-Consult Radgivande Ingenjorer AB filed Critical Hb-Consult Radgivande Ingenjorer AB
Publication of EP0200730A1 publication Critical patent/EP0200730A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F23L1/00—Passages or apertures for delivering primary air for combustion 
    • 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
    • F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel 
    • F23L9/04—Passages or apertures for delivering secondary air for completing combustion of fuel  by discharging the air beyond the fire, i.e. nearer the smoke outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B1/00—Combustion apparatus using only lump fuel
    • F23B1/16—Combustion apparatus using only lump fuel the combustion apparatus being modified according to the form of grate or other fuel support
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B5/00—Combustion apparatus with arrangements for burning uncombusted material from primary combustion
    • F23B5/04—Combustion apparatus with arrangements for burning uncombusted material from primary combustion in separate combustion chamber; on separate grate
    • 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 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
    • F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
    • F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
    • F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/34—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side
    • F24H1/36—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side the water chamber including one or more fire tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2230/00—Solid fuel fired boiler

Definitions

  • the space between the shaking grate 14 and the perforated sheet 20 is available through an ash door 26, and also a slag dis ⁇ charge tube 27 with a closure valve 28 extends from the perforated sheet. Said space is also provided with an inspection door 29. Also a conduit 30 is connected to the fan 23, said conduit extending to a box 21 for primary air. A number of nozzles extend from this box, viz. nozzles 32 opening in the fuel shaft 19, and nozzles 33 located above the shaking grate 14 to open in the fuel bed 18 located on said grate.
  • Ash 5 which is accumulated in the fluidized bed 55 is utilized as fluidizing medium in this bed. Dust is prevented from accompanying the flue gas and the primary air to the combustion compartment 12, because such dust will be caught by the shaking grate 14 and the fuel bed 18 located on said grate. This means that lower demands may be put on the multiple cyclon separator 45. The final combustion in the fluidized bed 55 will proceed for a /ery long time, 6 to 8.hours.
  • the discharge of sulphur can be reduced by the addition of lime to the fuel supplied, for binding sulphur contained in the fuel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Steroid Compounds (AREA)

Abstract

La grille à secousses (14) fusionne à son extrémité de sortie avec une paroi de séparation (14') d'une colonne de combustible (19) pour recevoir le lit de combustible déchargé de la grille à secousses, si bien que ladite paroi de séparation se déplace de concert avec la grille à secousses. La colonne de combustible est reliée à son extrémité inférieure à une plaque perforée (20) pour soutenir un lit de cendre fluidisé (55) disposé en dessous de la grille à secousses.
EP85900255A 1983-12-20 1984-12-20 Chaudiere avec grille a secousses Withdrawn EP0200730A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8307041 1983-12-20
SE8307041A SE8307041L (sv) 1983-12-20 1983-12-20 Panna med skakrost

Publications (1)

Publication Number Publication Date
EP0200730A1 true EP0200730A1 (fr) 1986-11-12

Family

ID=20353812

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85900255A Withdrawn EP0200730A1 (fr) 1983-12-20 1984-12-20 Chaudiere avec grille a secousses

Country Status (4)

Country Link
EP (1) EP0200730A1 (fr)
NO (1) NO853290L (fr)
SE (1) SE8307041L (fr)
WO (1) WO1985002897A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE460220B (sv) * 1987-12-11 1989-09-18 Allan Inovius Reaktor foer minskning av foerbraenningsgasernas halter av kvaeve- och svaveloxider
DK172248B1 (da) * 1995-07-18 1998-02-02 Burmeister & Wains Energi Fremgangsmåde til styring af forbrændingen i en kedel med en vibrationsrist

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE564236C (de) * 1932-11-15 Babcock & Wilcox Dampfkessel W Schraeg- oder Treppenrostfeuerung mit vorgebauter Trockenkammer
GB1203755A (en) * 1966-10-27 1970-09-03 Coal Industry Patents Ltd Method of and apparatus for generating heat
JPS6119307Y2 (fr) * 1978-05-12 1986-06-11
US4196676A (en) * 1978-07-21 1980-04-08 Combustion Power Company, Inc. Fluid bed combustion method and apparatus
US4333909A (en) * 1980-05-09 1982-06-08 Foster Wheeler Energy Corporation Fluidized bed boiler utilizing precalcination of acceptors
EP0091458A1 (fr) * 1981-10-14 1983-10-19 Landskrona Finans AB Procede de brulage de combustible solide

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8502897A1 *

Also Published As

Publication number Publication date
SE8307041D0 (sv) 1983-12-20
SE8307041L (sv) 1985-06-21
WO1985002897A1 (fr) 1985-07-04
NO853290L (no) 1985-08-20

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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Designated state(s): AT CH DE FR GB LI

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19860821

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FRILUND, EYVIND