EP1843091B1 - Brûleur à combustible solide et procédé de nettoyage de la chambre de combustion - Google Patents

Brûleur à combustible solide et procédé de nettoyage de la chambre de combustion Download PDF

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Publication number
EP1843091B1
EP1843091B1 EP06007075A EP06007075A EP1843091B1 EP 1843091 B1 EP1843091 B1 EP 1843091B1 EP 06007075 A EP06007075 A EP 06007075A EP 06007075 A EP06007075 A EP 06007075A EP 1843091 B1 EP1843091 B1 EP 1843091B1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
burner unit
solid fuel
cleaning
airflow
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.)
Not-in-force
Application number
EP06007075A
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German (de)
English (en)
Other versions
EP1843091A1 (fr
Inventor
Jens Barslund
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.)
BG BIOVARME APS (BYGGROS TRADING APS)
Original Assignee
BIOVARME (NRGI UDVIKLING A/S) AS
BIOVARME AS NRGI UDVIKLING AS
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 BIOVARME (NRGI UDVIKLING A/S) AS, BIOVARME AS NRGI UDVIKLING AS filed Critical BIOVARME (NRGI UDVIKLING A/S) AS
Priority to EP06007075A priority Critical patent/EP1843091B1/fr
Priority to DK06007075.2T priority patent/DK1843091T3/da
Priority to AT06007075T priority patent/ATE502254T1/de
Priority to DE602006020689T priority patent/DE602006020689D1/de
Publication of EP1843091A1 publication Critical patent/EP1843091A1/fr
Application granted granted Critical
Publication of EP1843091B1 publication Critical patent/EP1843091B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B50/00—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone
    • F23B50/12—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel being fed to the combustion zone by free fall or by sliding along inclined surfaces, e.g. from a conveyor terminating above the fuel bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00—Removing ash, clinker, or slag from combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/26—Biowaste
    • F23G2209/261—Woodwaste

Definitions

  • the invention relates to a solid fuel burner unit according to the preamble of claim 1, and a method for cleaning a combustion chamber of a solid fuel burner unit.
  • German patent application DE 198 13 113 A1 is disclosed a system for removing the ash from the combustion chamber in a burner unit of a solid fuel furnace.
  • the combustion chamber is cylindrically shaped, where the diameter is reduced towards the exit opening.
  • the air to feed the combustion process is supplied tangentially to the cylinder making the air, gasses and light materials such as ash perform a rotating movement towards the exit opening.
  • the ash is removed from the combustion chamber during the combustion process, whereas heavier material such as unburned pellets, slag, grains of sand or other residual material are left in the combustion chamber.
  • the residual material accumulates over time and will have to be removed manually occasionally to not reduce the burner unit's efficiency. Even a relative small amount of residual material can reduce the burner unit's efficiency, in that it interferes or obstructs the air current provided to enable an efficient combustion process in the combustion chamber.
  • An object of the invention is therefore to provide for an advantageous technique for increase the efficiency of a solid fuel burner unit.
  • the invention provides for a solid fuel burner unit comprising, at least one combustion chamber, and a cleaning system, which in operation substantially cleans the combustion chamber completely for any loose or burned-in material, and which comprises means for generating airflow through the combustion chamber.
  • To provide the solid fuel burner unit with a cleaning system to supplement the ash removal system is advantageous, in that it hereby is possible to remove material, that is heavier than the ash and/or burned-in material from the combustion chamber, thereby increasing the burner units efficiency.
  • the burner unit comprise the cleaning system, manual cleaning of the combustion chamber can substantially be avoided, which is advantageous, in that the combustion chamber is hard to access.
  • the chamber is to be cleaned by hand, it has to cool off for a relatively long period of time before it is possible to access the inner parts of the furnace or the burner unit, without risking getting burned during the cleaning process. It is therefore also advantageous to make the burner unit comprise the cleaning system, it that, when a human is not directly involved in the cleaning of the chamber, the chamber and/or other parts of the burner unit does not have to be cooled before the cleaning process can be started, hereby reducing the time it takes to clean the chamber, hence the overall efficiency of the burner unit is increased.
  • the existing ash removal system of burner units known in the art is dimensioned to only remove light objects such as ash, to ensure that the ash removal system does not remove the solid fuel from the combustion chamber.
  • the ash removal system or the system to supply air to the combustion process in the combustion chamber is also designed to accomplish these tasks (particularly regarding the angle of entry of the supplied air) without blowing the solid fuel out of the combustion chamber before it is completely burned-out.
  • a separate cleaning system for cleaning the combustion chamber, is therefore used, whereby this can be designed simpler and it can be both faster and more efficient at removing all unwanted objects from the combustion chamber.
  • said cleaning system comprises means for generating airflow through said combustion chamber.
  • Generating airflow through the combustion chamber is a both simple and inexpensive way of cleaning the chamber during a cleaning process.
  • the combustion chamber becomes several hundred degrees Celsius hot during the combustion process, and this aggressive environment put heavy demands on mechanical cleaning equipment or any other equipment located in or close to the combustion chamber. Airflow can be generated in safe distance from the chamber, hereby minimising the risk of the cleaning system being damaged by the aggressive in and around the combustion chamber.
  • said airflow enters said combustion chamber through the same entrance opening, through which said solid fuel is supplied to said combustion chamber during normal operation of said burner unit and said airflow exits said combustion chamber through the same exit opening, through which ash and exhaust gases leaves said combustion chamber during normal operation of said burner unit.
  • utilizing these openings for establishing an air current through the combustion chamber is also advantageous, in that it hereby is possible to transport the residual material out of the burner unit and thereby the furnace via the same path as the ashes are removed during normal operation of the furnace, hence no extra removal system for the residual material has to be established, in that the existing ash pan or the like can be used.
  • said means for generating airflow through said combustion chamber during a cleaning process is separate from means for supplying air to the combustion process in said combustion chamber during normal operation of said burner unit.
  • the means for supplying air to the combustion process has to generate a relatively low speed air current to ensure, that the solid fuel or parts of the solid fuel are not blown out of the combustion chamber. Furthermore, the air supplied to feed the combustion process has to enter the combustion chamber perpendicular to the direction that the exhaust gases leaves it, in order to ensure that the air is used efficiently.
  • the means for generating airflow through the combustion chamber during a cleaning process has to generate a relatively high speed air current to ensure, that the combustion chamber is cleaned thoroughly. Also, to efficiently clean the chamber the cleaning airflow in the chamber has to be directed towards the exit opening of the chamber, making the most effective cleaning air current perpendicular to the most efficient air current used to feed the combustion process. It is therefore advantageous to provide the burner unit with separate means for generating the two different airflows.
  • said airflow has a speed through said combustion chamber of between 1 and 20 m/s, preferably between 2 and 14 m/s and most preferred between 3 and 8 m/s.
  • the present airflow speed ranges therefore provides for an advantageous relation between efficiency, noise emission and cost.
  • said solid fuel is pellets substantially made of an organic material such as wood.
  • Solid fuel in form of pellets of an organic material has the disadvantage compared to other forms of solid fuel, that pellets also contains small amount of incombustible material such as grains of sand and the like. This material is so heavy, that it will not leave the combustion chamber the same way the ashes does and therefore over time will accumulate in the combustion chamber. It is therefore advantageous to provide a pellet burner unit with a cleaning system according to the invention.
  • said material is incombustible material such as sand grains, slag, clinker, ash or any combination hereof e.g. in form of cakes, which accumulates in said combustion chamber during normal operation of said burner unit.
  • Oxygen is needed to enable combustion of solid fuel in the burner unit, and the most common way of providing this, is to supply air to the combustion chamber. This supply of air is also able to carry out light material, such as ashes from the combustion chamber, whereas heavier material such as grains of sand is left in the chamber with the solid fuel. It is therefore advantageous to provide a solid fuel burner unit with a cleaning system capable of removing incombustible material such as grains of sand.
  • said burner unit comprises control means for activating said cleaning system at a fixed or an adjustable time.
  • Providing the burner unit with control means comprising a timer for activating the cleaning process is advantageous, in that the cleaning process might produce more noise than the normal operation of the burner unit. It could therefore e.g. be advantageous to set the timer to clean the burner unit in the middle of the day, hereby reducing the risk of disturbing people sleeping.
  • the combustion process will have to be stopped during the cleaning process, and since the night time usually is the coldest period of the day, it would also be advantageous to provide the control means with a timer, that could start the cleaning process during the warmest period of the day, where the normal function of the burner unit is dispensable for the time it takes to clean the combustion chamber.
  • the invention further relates to a method for cleaning a combustion chamber of a solid fuel burner unit, said method comprising the steps of
  • one or more sensors detect that all or substantially all combustible material in said combustion chamber has been burned.
  • Using a sensor to detect that the combustion process in the chamber has stopped is advantageous, in that it hereby is possible to start the cleaning process immediately after the combustion process has ended, hereby reducing the period of time that the burner unit has to be taken out of normal operation to run a cleaning process.
  • Fig. 1 illustrates a cross section of a modem solid fuel furnace 1 known in the art, as seen from the side.
  • the solid fuel 4 which in this case is wood pellets, is lead to the burner unit 2 from a fuel container 5 through a hose (not shown) or a pipe 3 e.g. by means of a container worm conveyer (not shown).
  • the solid fuel could also be grain, corn, coal, straw, pellet shaped versions of these materials or another type of combustible particulate material, particularly organic material.
  • Controlled portions of the pellets 4 are delivered to the burner unit 2 though an entrance pipe 6 and falls down onto a burner worm conveyer 7.
  • a hot bulb 10 ignites the pellets 4 in the combustion chamber 9 and if the burner unit 2 is already running in normal operation mode, the new pellet potion is ignited by the burning pellets 4 in the combustion chamber 9.
  • air is provided to the chamber 9, to oxidize the combustion process and thereby ensuring that the pellets 4 are burned efficiently.
  • This air is supplied by a combustion air pump 11, which in this embodiment of the invention is placed on the underside of the burner unit 2.
  • Pellet portions are continually feed to the combustion chamber 9, making the existing portion ignite the new portion and ensuring that the energy output from the combustion chamber 9, is kept at a substantially constant level.
  • a lambda sensor 16 is placed to measure the oxygen level in the exhaust gases, hereby detecting or at least indicating the efficiency of the combustion process in the combustion chamber 9, and thereby the level of pollution produced.
  • the size and frequencies of the pellet portions, the amount of air supplied in the combustion chamber or other parameters can then be adjusted accordingly, to maintain the combustion process as efficiently as possible, with respect to heat output and/or pollution.
  • Fig. 2 illustrates a cross section of an embodiment of a combustion chamber 9 as seen from the side.
  • the combustion chamber 9 is formed as a cylindrical pipe, which is perforated by a number of strategically placed air supply holes 17, which in this case have a diameter smaller than the diameter of standard wood pellets 4.
  • the combustion chamber 9 could be shaped differently, such as square, rectangular, polygonal, elliptical or curved.
  • the combustion chamber 9 is in one end provided with an entrance opening 12 and in the other end provided with an exit opening 13.
  • Fig. 3 illustrates a cross section of an embodiment of a burner unit 2 as seen from the side.
  • all the ash or at least the majority of the ashes are automatically removed from the combustion chamber 9 during normal operation of the burner unit 2.
  • residual material 18 accumulates in the combustion chamber 9.
  • This material 18 could e.g. be grains of sand or other incombustible material embedded in the pellets 4, it could be caked ash, it could be flakes of burned-in sod or it could be other kinds of incombustible material that are either burned into the combustion chambers 9 wall or too heavy to leave the combustion chamber 9 during normal operation of the burner unit 2.
  • the previously mentioned lambda sensor 16 or a similar sensor will detect if the combustion process is not running satisfactory, and in burner units 2 known in the art, the residual material 18 will then have to be removed from the combustion chamber 9 manually.
  • burner units 2 are not equipped with a cleaning system and to clean out the residual material 18 from the combustion chamber, the burner unit 2 has to be shut down before the material 18 can be removed manually e.g. by scraping the material 18 out into the ash pan 15 by using the hands, a brush or special made tool. In worst case this has to be done several times a week.
  • the burner unit 2 according to the invention as illustrated in fig. 3 is provided with a cleaning system 20 in form of a cleaning air pump 19.
  • the air pump 19 is placed on the entrance pipe 6 on the burner unit 2.
  • the air pump 19 could also be placed on the fuel pipe 3 or hose.
  • the burner unit 2 is in this embodiment provided with at a simple one way valve 21 in form of shutter which during normal operation of the burner unit 2 ensures that neither ashes, pellets, air, exhaust gases nor other escapes the burner unit 2 through the cleaning air pump 19,
  • Fig. 4 illustrates a cross section of the same embodiment of a burner unit 2 as shown in fig. 3 , during cleaning operation, as seen from the side.
  • the cleaning air pump 19 comprise an electrical motor and a fan for generating airflow through the combustion chamber 9.
  • the cleaning air pump 19 could e.g. be an ordinary vacuum cleaner motor, which pumps air from the outside of the burner unit 2 into the unit 2 generating an overpressure in the unit 2.
  • the overpressure/airflow could be generated by air released from a compressed air tank, by means of a bellows principle or it could be made by other airflow generating means.
  • a gas other than or in combination with air could be used in the cleaning system 20.
  • the cleaning air pump 19 is completely separate from the combustion air pump 11.
  • the airflow from the cleaning air pump 19 is prevented from leaving the burner unit 2 through the fuel pipe 3, in that the solid fuel 4 in the pipe 3, in the container worm conveyer (not shown) and/or in the fuel container 5 will clog this passage, ensuring that the airflow generated by the cleaning air pump 19 leaves the burner unit 2 through the combustion chamber 9.
  • the fuel pipe 3 or the fuel container 5 could be provided with a register, a damper, a valve or the like to ensure that the air flow from the cleaning air pump 19 is directed the right way through the burner unit 2.
  • the cleaning air pump 19 is able to move 27.5 liters of air per second but in another embodiment the cleaning air pump 19 could have a capacity of between 100 and 5 l/sec, preferably between 60 and 10 l/sec and most preferred between 45 and 15 l/sec. These capacity ranges are suitable for cleaning a combustion chamber 9 of 12 to 40 kW burner units 2 with an internal sectional area of between 4,083 and 7,854 mm 2 , hereby enabling airflow with a speed of between 1 and 20 m/s, preferably between 2 and 14 m/s and most preferred between 3 and 8 m/s through the combustion chamber 9.
  • Fig. 4 further illustrates that the shutter 21 is blown open by the airflow provided by the cleaning air pump 19, but in another embodiment of the invention the shutter could be opened mechanically during the cleaning process.
  • the cleaning process could be triggered by measurements by the lambda sensor 16. If the measurements of the lambda sensor 16 were feed to control means - for controlling the operation of the burner unit 2 or the entire furnace 1 - during normal operation of the burner unit 2, the control means could automatically start the cleaning process if the measurements of the lambda sensor 16 were above or bellow as certain predefined level. But in a preferred embodiment of the invention the control means are provided with a timer, enabling the cleaning process to be started at a fixed or an adjustable time of the day, of the week, of the month or other.
  • control means stop the feeding of fuel 4 to the burner unit 2. Based on empirical data the control means could start the cleaning air pump 19 after a preset time. In another embodiment of the invention the control means would monitor the measurements of a light sensor (not shown) and then start the cleaning air pump 19 when the light emitted from the combustion process in the combustion chamber 9 drops to below a certain level (i.e. the material in the combustion chamber is all burned out).
  • control means would monitor the measurements of the lambda sensor 16, and then start the cleaning air pump 19 when the measurements of the lambda sensor 16 are above or bellow as certain predefined level.
  • the control means starts the burner worm conveyer 7 when the cleaning air pump 19 is started.
  • combustion air pump 11 could also be running during the cleaning process, hereby increasing the airflow through the combustion chamber and preventing that air from the cleaning air pump 19 or residual material 18 leaves the combustion chamber 9 through the holes 17 in the combustion chambers 9 wall.
  • the cleaning air pump 19 pumps air through the combustion chamber 9 until a preset timer of the control means e.g. after 1 to 100 seconds, preferably between 2 an 30 seconds and most preferred between 3 an 10 seconds, stops the cleaning air pump 19.
  • the control means then starts the feeding of fuel 4 to the burner unit 2 again and normal operation of the burner unit 2 is re-established.
  • the control means is in this embodiment of the invention a small PLC (Programmable Logic Controller) build into the furnace 1 to control the entire operation of the furnace 1 both during normal operation of the furnace 1- when the burner unit 2 combusts fuel 4 and thereby produces heat - and during the cleaning process, when the combustion process is stopped and the combustion chamber 9 of the burner unit 9 is cleaned.
  • the control means could be PC and/or microprocessor based or other and in another embodiment the control means could be placed externally to the furnace 1.
  • the control means enables that the entire furnace 1 can run automatically, without the need of human interference for a long time compared to traditional solid fuel furnaces 1 known in the art.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Solid-Fuel Combustion (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
  • Incineration Of Waste (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Baking, Grill, Roasting (AREA)

Claims (8)

  1. Unité de brûleur à combustible solide (2), comprenant :
    au moins une chambre de combustion (9), et
    un système de nettoyage (20), qui, durant le fonctionnement, réalise un nettoyage sensiblement complet de ladite chambre de combustion (9) pour enlever un quelconque matériau en vrac ou brûlé et adhérant à l'intérieur (18), dans laquelle ledit système de nettoyage (20) comprend des moyens (19) destinés à générer un écoulement d'air à travers ladite chambre de combustion (9),
    caractérisée en ce que
    lesdits moyens (19) destinés à générer un écoulement d'air à travers ladite chambre de combustion (9) au cours d'un procédé de nettoyage sont séparés de moyens (11) destinés à fournir de l'air au procédé de combustion dans ladite chambre de combustion (9) au cours du fonctionnement normal de ladite unité de brûleur (2).
  2. Unité de brûleur à combustible solide (2) selon la revendication 1, dans laquelle ledit écoulement d'air entre dans ladite chambre de combustion (9) à travers la même ouverture d'entrée (12) que celle à travers laquelle ledit combustible solide (4) est fourni à ladite chambre de combustion (9) au cours du fonctionnement normal de ladite unité de brûleur (2) et ledit écoulement d'air sort de ladite chambre de combustion (9) à travers la même ouverture de sortie (13) que celle à travers laquelle de la cendre et des gaz d'échappement quittent ladite chambre de combustion (9) au cours du fonctionnement normal de ladite unité de brûleur (2).
  3. Unité de brûleur à combustible solide (2) selon la revendication 1 ou 2, dans laquelle ledit combustible solide (4) est des boulettes faites sensiblement de matériau organique, tel que du bois.
  4. Unité de brûleur à combustible solide (2) selon l'une quelconque des revendications précédentes, dans laquelle ladite unité de brûleur (2) comprend des moyens de commande destinés à activer ledit système de nettoyage (20) à un instant fixe ou réglable.
  5. Procédé pour nettoyer une chambre de combustion (9) d'une unité à combustible solide (2) selon l'une quelconque des revendications précédentes, ledit procédé comprenant les étapes consistant à :
    - arrêter l'alimentation en combustible solide (4) vers ladite unité de brûleur (2),
    - établir un écoulement d'air à travers ladite chambre de combustion (9) par l'intermédiaire de moyens (19) dudit système de nettoyage (20) lorsque tout ou sensiblement tout le matériau combustible (4) dans ladite chambre de combustion (9) a été brûlé.
  6. Procédé selon la revendication 5, dans lequel un ou plusieurs capteurs (16) détectent que tout ou sensiblement tout le matériau combustible dans ladite chambre de combustion (9) a été brûlé.
  7. Procédé selon la revendication 5 ou 6, dans lequel ledit écoulement d'air possède une vitesse à travers ladite chambre de combustion (9) comprise entre 1 et 20 m/s, de préférence entre 2 et 14 m/s et idéalement entre 3 et 8 m/s.
  8. Procédé selon l'une quelconque des revendications 5 à 7, dans lequel ledit matériau (18) est un matériau incombustible, tel que des grains de sable, de la scorie, du mâchefer, de la cendre ou une quelconque association de ceux-ci, par exemple sous forme de croûtes, qui s'accumule dans ladite chambre de combustion (9) au cours du fonctionnement normal de ladite unité de brûleur (2).
EP06007075A 2006-04-03 2006-04-03 Brûleur à combustible solide et procédé de nettoyage de la chambre de combustion Not-in-force EP1843091B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP06007075A EP1843091B1 (fr) 2006-04-03 2006-04-03 Brûleur à combustible solide et procédé de nettoyage de la chambre de combustion
DK06007075.2T DK1843091T3 (da) 2006-04-03 2006-04-03 En fastbrændselsbrænderenhed og en fremgangsmåde til rengøring af forbrændingskammeret
AT06007075T ATE502254T1 (de) 2006-04-03 2006-04-03 Festbrennstoffbrenner und verfahren zum reinigen der brennkammer
DE602006020689T DE602006020689D1 (de) 2006-04-03 2006-04-03 Festbrennstoffbrenner und Verfahren zum Reinigen der Brennkammer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06007075A EP1843091B1 (fr) 2006-04-03 2006-04-03 Brûleur à combustible solide et procédé de nettoyage de la chambre de combustion

Publications (2)

Publication Number Publication Date
EP1843091A1 EP1843091A1 (fr) 2007-10-10
EP1843091B1 true EP1843091B1 (fr) 2011-03-16

Family

ID=36929028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06007075A Not-in-force EP1843091B1 (fr) 2006-04-03 2006-04-03 Brûleur à combustible solide et procédé de nettoyage de la chambre de combustion

Country Status (4)

Country Link
EP (1) EP1843091B1 (fr)
AT (1) ATE502254T1 (fr)
DE (1) DE602006020689D1 (fr)
DK (1) DK1843091T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10781411B2 (en) 2015-01-30 2020-09-22 The Lubrizol Corporation Composition for cleaning gasoline engine fuel delivery systems, air intake systems, and combustion chambers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1393846B1 (it) * 2009-04-30 2012-05-11 Italforni S R L Forno a combustibile solido.
ITPD20090306A1 (it) * 2009-10-26 2011-04-27 Ecoteck Srl Caldaia per il riscaldamento di edifici o ambienti similari
AT513896B1 (de) * 2013-01-24 2016-03-15 Otto Ing Keiml Brenner für feste Brennstoffe mit drehbarem Brennrohr

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE41812C (de) * D. GROVE in Berlin Ofen zur Verbrennung von Papierballen
AT386268B (de) * 1981-04-10 1988-07-25 Trunkenpolz Maschinen Vorrichtung zum verbrennen von stroh, holzspaenen u.dgl.
US5297493A (en) * 1993-03-16 1994-03-29 Nuesmeyer David L Burn pot for particulate combustors
DE19813113A1 (de) * 1998-03-25 1999-09-30 Siegfried Schuster Verfahren und Vorrichtung zum Verbrennen von Festbrennstoffen mit integriertem Ascheaustrag
SE513953C2 (sv) * 1999-04-21 2000-12-04 Klaus Lorenz Brännare för fasta bränslen, förbränningsanläggning med en brännare för fasta bränslen och ett sätt att från ett brännarrör i en brännare för fasta bränslen utmata förbränningsprodukter, såsom bildade rökgaser och förbränningsrester
ITVI20040014A1 (it) * 2004-01-28 2004-04-28 Thermorossi Spa Bruciatore per stufe alimentari a pellets, cippato, cereali e scarti vegetali in genere

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10781411B2 (en) 2015-01-30 2020-09-22 The Lubrizol Corporation Composition for cleaning gasoline engine fuel delivery systems, air intake systems, and combustion chambers

Also Published As

Publication number Publication date
ATE502254T1 (de) 2011-04-15
DE602006020689D1 (de) 2011-04-28
EP1843091A1 (fr) 2007-10-10
DK1843091T3 (da) 2011-07-04

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