EP0575470B1 - A solid fuel stoker - Google Patents

A solid fuel stoker Download PDF

Info

Publication number: EP0575470B1
Authority: EP; European Patent Office
Prior art keywords: stoker; scraper; combustion air; bottom part; air
Prior art date: 1991-03-15
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.): Expired - Lifetime

Application number

EP92907578A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP0575470A1 (en

Inventor

Uffe Pedersen

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.)

FELLNER GmbH

Original Assignee

PEDERSEN Uffe

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.)

1991-03-15

Filing date

1992-03-16

Publication date

1994-09-21

1992-03-16 Application filed by PEDERSEN Uffe filed Critical PEDERSEN Uffe

1993-12-29 Publication of EP0575470A1 publication Critical patent/EP0575470A1/en

1994-09-21 Application granted granted Critical

1994-09-21 Publication of EP0575470B1 publication Critical patent/EP0575470B1/en

2012-03-16 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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Images

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
- 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
- F23B1/26—Combustion apparatus using only lump fuel the combustion apparatus being modified according to the form of grate or other fuel support using imperforate fuel supports
- 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
- F23B1/30—Combustion apparatus using only lump fuel characterised by the form of combustion chamber
- 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
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/08—Cooling thereof; Tube walls

Definitions

scraper conveyor of the stoker requires constantly maintenance, as the scraper elements simply are damaged by burning or destroyed by clinkering.
the document WO-A-89/04 939 discloses a furnace with a scraper conveyor, comprising triangular scraper elements.
the scraper elements are not, however, protected against overheating
the invention has for its purpose to provide a stoker of the type described in the introductory part, and by which said problems by simple provisions may be solved.
the stoker according to the invention furthermore may be provided so that said inlet openings for combustion air in the side walls of the heart are devided into three groups each being connected with separate air inlet channels, namely so that a lowermost group is connected with an air inlet channel for primary combustion air, while middle and upper groups are connected with air inlet channels for propely combustion air, and that - in connection with said air inlet channels - air valve means are present for controlling of the air admittance to the respective groups of inlet openings.
the scraper elements 30 may be supplied with cooling water, which again may be discharged via upper side openings 44 in the broader discharge pipes 38.
outwardly open angular recesses 46 are provided, which via air nozzle openings 48 are connected with the air supply pipe 36, so that primary combustion air may be admitted along both sides of the beam 28, when this is reciprocated along the bottom part of the heart, that is under 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)
Gasification And Melting Of Waste (AREA)
Incineration Of Waste (AREA)
Solid-Fuel Combustion (AREA)
Glass Compositions (AREA)
Solid Fuels And Fuel-Associated Substances (AREA)
Thermotherapy And Cooling Therapy Devices (AREA)
Orthopedics, Nursing, And Contraception (AREA)
Devices For Medical Bathing And Washing (AREA)
Display Devices Of Pinball Game Machines (AREA)
Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Separation Using Semi-Permeable Membranes (AREA)

EP92907578A 1991-03-15 1992-03-16 A solid fuel stoker Expired - Lifetime EP0575470B1 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
DK91460A DK46091D0 (da)	1991-03-15	1991-03-15	Bioenergibraender med tilbehoer
DK460/91		1991-03-15
PCT/DK1992/000082 WO1992016791A1 (en)	1991-03-15	1992-03-16	A solid fuel stoker

Publications (2)

Publication Number	Publication Date
EP0575470A1 EP0575470A1 (en)	1993-12-29
EP0575470B1 true EP0575470B1 (en)	1994-09-21

Family

ID=8093805

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP92907578A Expired - Lifetime EP0575470B1 (en)	1991-03-15	1992-03-16	A solid fuel stoker

Country Status (9)

Country	Link
EP (1)	EP0575470B1 (da)
AT (1)	ATE112031T1 (da)
AU (1)	AU1453092A (da)
DE (1)	DE69200448T2 (da)
DK (2)	DK46091D0 (da)
FI (1)	FI100731B (da)
NO (1)	NO180247C (da)
PL (1)	PL167766B1 (da)
WO (1)	WO1992016791A1 (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DK154692D0 (da) *	1992-12-23	1992-12-23	Smidth & Co As F L	Fremgangsmaade og koeler til afkoeling af partikelformet materiale
ITVI20040014A1 (it) *	2004-01-28	2004-04-28	Thermorossi Spa	Bruciatore per stufe alimentari a pellets, cippato, cereali e scarti vegetali in genere
DE202004010592U1 (de)	2004-07-06	2005-11-17	Heizomat-Gerätebau + Energiesysteme GmbH	Heizkessel für die Verbrennung von festem Brennstoff, insbesondere für Biomasse
ITCR20070017A1 (it) *	2007-08-03	2009-02-04	Termocabi Srl	Dispositivo di allontanamento del materiale residuo agglomerato derivante dalla combustione di pellet o combustibile solido in genere
FI122977B (fi)	2010-11-29	2012-09-28	Topi Kalle Johannes Paemppi	Menetelmä polttouunissa
DE102012107974B3 (de) *	2012-08-29	2014-02-27	M-S Consulting und Beteiligungs GmbH	Feuerung für holzartige verklumpbare Biomassebrennstoffe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0046248B1 (en) *	1980-08-19	1985-04-17	Suxe Combustion Limited	Improvements in or relating to furnaces
US4593629A (en) *	1982-12-08	1986-06-10	Maskinfabrikken Dan-Trim Aps	Solid fuel stoker
DE3717579A1 (de) *	1987-05-25	1988-12-08	Gregor Pollmeier	Kessel
NO874876L (no) *	1987-11-23	1989-07-14	Saxlund As	Anordning ved ovner.

1991
- 1991-03-15 DK DK91460A patent/DK46091D0/da not_active Application Discontinuation
1992
- 1992-03-16 DE DE69200448T patent/DE69200448T2/de not_active Expired - Fee Related
- 1992-03-16 EP EP92907578A patent/EP0575470B1/en not_active Expired - Lifetime
- 1992-03-16 DK DK92907578.6T patent/DK0575470T3/da active
- 1992-03-16 PL PL92300635A patent/PL167766B1/pl unknown
- 1992-03-16 AT AT92907578T patent/ATE112031T1/de not_active IP Right Cessation
- 1992-03-16 WO PCT/DK1992/000082 patent/WO1992016791A1/en active IP Right Grant
- 1992-03-16 AU AU14530/92A patent/AU1453092A/en not_active Abandoned
1993
- 1993-09-14 NO NO933275A patent/NO180247C/no unknown
- 1993-09-14 FI FI934017A patent/FI100731B/fi active

Also Published As

Publication number	Publication date
FI100731B (fi)	1998-02-13
AU1453092A (en)	1992-10-21
PL167766B1 (pl)	1995-11-30
FI934017A (fi)	1993-09-14
WO1992016791A1 (en)	1992-10-01
NO933275D0 (no)	1993-09-14
ATE112031T1 (de)	1994-10-15
EP0575470A1 (en)	1993-12-29
DK46091D0 (da)	1991-03-15
FI934017A0 (fi)	1993-09-14
NO180247B (no)	1996-12-02
DK0575470T3 (da)	1994-11-14
DE69200448T2 (de)	1995-02-02
DE69200448D1 (de)	1994-10-27
NO180247C (no)	1997-03-12
NO933275L (no)	1993-09-14

Legal Events

Date	Code	Title	Description
1993-11-12	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1993-12-29	17P	Request for examination filed	Effective date: 19930902
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1994-04-06	17Q	First examination report despatched	Effective date: 19940223
1994-08-05	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1994-09-21	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE
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Publication	Publication Date	Title
AU776445B2 (en)	2004-09-09	Improved mass fuel combustion system
EP0575470B1 (en)	1994-09-21	A solid fuel stoker
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