EP0754907A2 - Verfahren zur Regelung der Verbrennung in einem Heizkessel mit schwingendem Rost - Google Patents

Verfahren zur Regelung der Verbrennung in einem Heizkessel mit schwingendem Rost Download PDF

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Publication number
EP0754907A2
EP0754907A2 EP96610028A EP96610028A EP0754907A2 EP 0754907 A2 EP0754907 A2 EP 0754907A2 EP 96610028 A EP96610028 A EP 96610028A EP 96610028 A EP96610028 A EP 96610028A EP 0754907 A2 EP0754907 A2 EP 0754907A2
Authority
EP
European Patent Office
Prior art keywords
grate
amount
supplied
fuel
primary air
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
EP96610028A
Other languages
English (en)
French (fr)
Other versions
EP0754907A3 (de
EP0754907B1 (de
Inventor
Joergen Boegild Johnsen
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.)
FLS Miljo AS
Original Assignee
Burmeister and Wain Energy 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 Burmeister and Wain Energy AS filed Critical Burmeister and Wain Energy AS
Publication of EP0754907A2 publication Critical patent/EP0754907A2/de
Publication of EP0754907A3 publication Critical patent/EP0754907A3/de
Application granted granted Critical
Publication of EP0754907B1 publication Critical patent/EP0754907B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 
    • F23L1/02—Passages or apertures for delivering primary air for combustion  by discharging the air below the fire
    • 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
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/50—Control or safety arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/10—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses
    • F23G7/105—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses of wood waste
    • 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 
    • F23L9/02—Passages or apertures for delivering secondary air for completing combustion of fuel  by discharging the air above the fire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2203/00—Furnace arrangements
    • F23G2203/107—Furnace arrangements with vibrating grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2207/00—Control
    • F23G2207/10—Arrangement of sensing devices
    • F23G2207/103—Arrangement of sensing devices for oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2207/00—Control
    • F23G2207/20—Waste supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2207/00—Control
    • F23G2207/30—Oxidant supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2900/00—Special features of, or arrangements for incinerators
    • F23G2900/55—Controlling; Monitoring or measuring
    • F23G2900/55009—Controlling stoker grate speed or vibrations for waste movement

Definitions

  • the invention relates to a process for controlling the combustion in a boiler having a vibrating grate which is vibrated for a short period and left to rest for a substantially longer period of time, wherein primary air is supplied to the underside of the grate and flows up through openings therein, wherein secondary air is supplied through nozzles provided on at least one boiler wall and the fuel is spread onto the grate through a feed opening in at least one boiler wall, and wherein the supplied amount of primary air and/or amount of fuel supplied are determined dependent on the result of current measurements of one or more of the boiler state variables and parameters which reflect the air surplus and the heat absorption.
  • Known boilers of this type are i.a. used for burning wood chips, wood waste, sawdust, and the like materials or mixtures thereof, but may be used for burning nearly all types of solid fuel which may be spread onto the grate.
  • the grate is vibrated periodically, typically for approx. 2-5 seconds with a frequency of 5-8 Hz and an amplitude of approx. 7-10 mm followed by a standstill period of 5-30 minutes.
  • the grate may tilt 7-10° towards a cinder pit and vibration may typically take place in a direction tilting at an angle of 10-18° reversely to the tilting of the grate.
  • the object of the vibration is to distribute the fuel positioned on the grate over its surface and to convey ash from the combustion to the cinder pit.
  • vibration of the grate a change of the immediate consumption of fuel on the grate occurs, and in the known boilers, where a high amount of primary air is used, the combustion rate increases.
  • the effect on the consumption of fuel on the grate is significant in 2-5 minutes after the vibration.
  • the vibration of the grate causes a part of flammable material to be whirled up from the grate and to burn in the combustion chamber for a period of 3-10 seconds after the vibration.
  • the object of the invention is to provide a process of the type mentioned by way of introduction, by means of which the immediate heat release is kept approximately constant, sudden drops in the oxygen content of the exhaust gas being simultaneously avoided.
  • This object is according to the invention met in that the supplied amount of primary air and/or amount of fuel in connection with each vibration further is reduced relative to the amount determined by the current measurement, that the reduction is initiated immediately prior to the vibration reaching its maximum frequency and is reduced after the end of the vibration to reach substantially the level before the reduction in such a way that the sum of the reduction per cent of the amount of primary air supplied and the reduction per cent of the supplied amount of fuel, summed up separately as an average over five seconds in the major part of a period starting when the vibration has reached its maximum frequency and ending ninety seconds later, amount to at least 15%. If for instance the reduction per cent of the supplied amount of primary air, measured as stated, is 50% and the reduction per cent of the amount of fuel supplied, measured in the same way, is 80%, the sum of the reductions is 130%.
  • the process according to the invention utilizes the fact that two of the parameters having substantial influence on the combustion, viz. the supplied amount of primary air and the supplied amount of fuel, can be changed nearly instantaneously. Furthermore, the time for changing these parameters is determined on basis of the knowledge of the time for the starting of the vibration, and thereby the previously mentioned time lag in connection with the measurement of the oxygen content of the exhaust gas is avoided.
  • the boiler is substantially controlled like known boilers, but this control is superimposed by a control of the immediately supplied amount of primary air and/or amount of fuel, which is controlled on basis of the knowledge of the time for the vibration.
  • the substantial advantages obtained by the process according to the invention is that the air surplus becomes smaller, which entails a smaller production of NO, a smaller energy consumption for pressurizing combustion air and for sucking exhaust gases through the boiler and a smaller loss of heat on account of the exhaust gas of the boiler.
  • the process according to the invention allows the load on the grate, compared to known boilers, to be substantially increased. It has turned out that in known boilers there is in practice an upper limit to the load about 2MW/m 2 . Is the load to be increased more than that, it is necessary either to increase the amount of primary air or to utilize the amount of primary air better than before.
  • a preferred embodiment of the invention is characteristic in that the amount of secondary air supplied is increased simultaneously with the reduction of the amount supplied of primary air and/or the supplied amount of fuel.
  • a second process according to the invention is characteristic in that in the determination of the size of said reduction of the amount supplied of primary air and/or amount of fuel under a given vibration use is made of the result of a measurement of at least one of the state variables of the boiler, while one of the immediately preceding vibrations influences substantially the value of the state variable.
  • the object is to ensure that the reduction of the supplied amount of primary air and/or amount of fuel has the proper size in relation to the current operational condition.
  • the result of measurements of the state variable of the boiler at preceding vibrations are part of an algorithm for determination of the size of the reduction at a succeeding vibration.
  • a third process according to the invention is characteristic in that said state variable is the oxygen content of the exhaust gas, and that the size of the reduction of the supplied amount of primary air and/or the fuel amount is increased when the measurement indicates a drop in the oxygen content of the exhaust gas in the period immediately after the vibration of the grate, and in that the size of the reduction is decreased when the result of the measurement indicates an increase of the oxygen content of the exhaust gas.
  • the algorithm may comprise comparison of the oxygen content in the exhaust gas immediately before and 1-2 minutes after the vibration of the grate, where a drop of the oxygen content of more than 0.2% point has the effect that the reduction of the supplied amount of primary air and/or the supplied amount of fuel is increased by 20% and where an increase of the oxygen content in the exhaust gas by more than 0.2% point causes a decrease of said reduction by 20%.
  • a fourth embodiment is characteristic in that the reduction of the supplied amount of primary air at the starting of the vibration is 30% of the starting value, that the reduction of the supplied amount of fuel is decreased to 30% of the starting value five seconds after the vibration has stopped, and that the deviation per cent of each of said amounts from the starting value is decreased gradually such that it is halved each time two minutes have passed.
  • an air flow may be created above the grate in a direction away from the outlet edge of the grate at the cinder pit to the opposite end of the grate, which air flow in a sixth embodiment may be created by in-blowing of secondary air through secondary air nozzles which are placed in the boiler wall above the outlet edge of the grate and below the level of the feed opening for the fuel, which nozzles may be directed towards the surface of the grate in the area at the rear edge of the grate.
  • the centre line of each secondary air nozzle may be placed within a conical surface with its vertex in the nozzle and having a vertex angle of approx.
  • the centre line of said cone being directed towards an intersection point between the surface of the grate and an imaginary, vertical line starting from a point in the surface of a part of a boiler wall, said point being positioned at the same level as the nozzle and opposite thereto.
  • the supplied amount of primary air is distributed over the grate in such a way that the amount of primary air per area unit, which is supplied through the main part of the third of the active area of the grate which is closest to the cinder pit, is bigger than the amount of primary air per area unit supplied through the whole active area of the grate, the active area being defined as the area of the smallest rectangle compassing all the openings of the grate.
  • the supply of secondary air to the secondary air nozzles may constitute between 1/4 and 1/8 of the amount of primary air at a pressure which at the maximum yield of the boiler typically is 6000 Pa.
  • the spreading of the fuel is to be adapted such that approx. 2/3 of the fuel may be spread on the middle third of the grate, whereas 1/3 is spread on the upper third of the grade in such a way that the amount of fuel which reaches the rear part of the grate is practically nil.
  • the boiler has a combustion chamber 1 defined by a front wall 2 and a rear wall 3 and at the bottom it has a vibration grate 4. Under the grate there is an ash box 5, and at the end of the grate closest to the front wall there is a cinder pit 6.
  • the fuel is supplied by means of a helical conveyor not shown to a duct 7, from which it slides to a spreader stoker, which spreads it onto the grate 4 through an opening in the front wall 8 by means of an injection nozzle 9, to which air is supplied from an air duct 10.
  • the spreading of the fuel should be adapted such that approx.
  • 2/3 of the fuel may be spread onto the middle third of the grate, whereas 1/3 is spread onto the upper third of the grate in such a way that the amount of fuel which reaches the rear part of the grate is approximately nil.
  • An air nozzle 15 is provided under the opening 8 in the front wall, said nozzle being supplied with air from an air duct 16. The nozzles 15 are directed towards the rear edge of the gate and serve for mixing degassing products and primary air from the fuel on the vibration grate 4.
  • the boiler is provided with several groups of secondary air nozzles.
  • the grate nozzles 17 and 19 are provided, which are supplied with air from air ducts 18 and 20, respectively.
  • said protrusions carrying secondary nozzles 30,31 to which air is supplied from an air duct 32 and 33, 34, to which air is supplied from an air duct 35.
  • the supply of secondary air to the secondary air nozzles may constitute between 1/4 and 1/8 of the amount of primary air at a pressure, which at the maximum yield of the boiler typically is 6000 Pa.
  • the vibration grate 4 is placed with a tilt of 7° relative to horizontal and with its highest point at the rear wall 3.
  • the grate is typically provided with 1000 holes per m 2 with a diameter of 3-4 mm.
  • the grate is vibrated by a vibration unit 11 with a frequency of approx. 9 Hz and an amplitude of ⁇ 5 mm in a direction forming an angle of 13° with horizontal and directed reversely to the tilting of the grate.
  • the vibration is carried out periodically, the grate being vibrated for approx. 2-5 seconds followed by a period of standstill of 5 - 20 minutes.
  • Fig. 2 shows how the frequency of the vibrations of the grate changes dependent on the time.
  • the frequency course is shown over an axis of abscissas, which is divided into intervals of 10 seconds, whereas the axis of abscissas in the right side of the figure is divided into intervals of 1 minute.
  • the same division of the axis is used in all the following figures and shall therefore not be mentioned in connection therewith.
  • Fig. 6 shows in the same way as Fig. 2 the frequency course of the vibrations of the grate, but for a boiler for use in carrying out the process according to the invention.
  • Fig. 7 and 8 show that the supplied amount of fuel and the supplied amount of primary air, respectively, drop abruptly by the vibration, after which these amounts increase in a controlled way.
  • the amount of primary air it is indicated in Fig.8 that the original reduction of the supplied amount of primary air by 30%, indicated by the curve e, is approximately halved by each passing of 2 minutes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Incineration Of Waste (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
EP19960610028 1995-07-18 1996-07-16 Verfahren zur Regelung der Verbrennung in einem Heizkessel mit schwingendem Rost Expired - Lifetime EP0754907B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK84295A DK172248B1 (da) 1995-07-18 1995-07-18 Fremgangsmåde til styring af forbrændingen i en kedel med en vibrationsrist
DK84295 1995-07-18
DK842/95 1995-07-18

Publications (3)

Publication Number Publication Date
EP0754907A2 true EP0754907A2 (de) 1997-01-22
EP0754907A3 EP0754907A3 (de) 1998-05-20
EP0754907B1 EP0754907B1 (de) 2000-10-18

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ID=8098170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960610028 Expired - Lifetime EP0754907B1 (de) 1995-07-18 1996-07-16 Verfahren zur Regelung der Verbrennung in einem Heizkessel mit schwingendem Rost

Country Status (4)

Country Link
EP (1) EP0754907B1 (de)
DE (1) DE69610670T2 (de)
DK (1) DK172248B1 (de)
ES (1) ES2153553T3 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998048219A1 (en) * 1997-04-24 1998-10-29 Dell-Point Combustion Inc. Solid fuel burner for a heating apparatus
EP0952398A2 (de) * 1998-04-17 1999-10-27 Dr. Schoppe Technologie GmbH Verfahren und Vorrichtung zur Zuführung des Windes zur Verbrennung von stückigem Brennstoff
WO2000003179A1 (en) * 1998-07-10 2000-01-20 Fls Miljø A/S A method of firing in a boiler and a boiler for using the method
EP1106921A1 (de) 1999-12-09 2001-06-13 Ansaldo Volund A/S Verfahren zum Betrieb eines schwingenden Rostes in einer Biomasseverbrennungsanlage
EP1197706A2 (de) * 2000-10-12 2002-04-17 MARTIN GmbH für Umwelt- und Energietechnik Verfahren zum Verbrennnen von Abfallprodukten
EP1331440A1 (de) 2002-01-25 2003-07-30 Tulikivi Oyj Feuerstelle
EP1607680A1 (de) 2004-06-17 2005-12-21 General Electric Company Brennkammer mit Oberluftinjektion
WO2014006459A1 (en) * 2012-07-06 2014-01-09 Babcock & Wilcox Vølund A/S Vibrating grate stoker
ITUB20160520A1 (it) * 2016-01-29 2017-07-29 Rivoira Gas S R L Metodo migliorato per la combustione di biomasse in un boiler con alimentazione a lancio (spread-striker) e relativo boiler
CN108916905A (zh) * 2018-07-20 2018-11-30 潘真清 多风道物燃料采暖炉
WO2019046972A1 (en) * 2017-09-11 2019-03-14 Enero Solutions Inc. DYNAMIC HEAT RELEASE CALCULATION FOR ENHANCED FEEDBACK CONTROL OF COMBUSTION PROCESS BASED ON SOLID FUEL

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108800197A (zh) * 2018-06-05 2018-11-13 北京德普新源科技发展有限公司 一种生物质锅炉水冷振动炉排的控制方法及系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166421A (en) * 1976-08-20 1979-09-04 Heenan Environmental Systems Ltd. Cyclonic furnace
US4278052A (en) * 1979-09-27 1981-07-14 Leeds & Northrup Company Boiler control system
WO1985002897A1 (en) * 1983-12-20 1985-07-04 HB-CONSULT RA^oDGIVANDE INGENJÖRER AB Boiler with a shaking grate
US4838183A (en) * 1988-02-11 1989-06-13 Morse Boulger, Inc. Apparatus and method for incinerating heterogeneous materials
US5239935A (en) * 1991-11-19 1993-08-31 Detroit Stoker Company Oscillating damper and air-swept distributor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166421A (en) * 1976-08-20 1979-09-04 Heenan Environmental Systems Ltd. Cyclonic furnace
US4278052A (en) * 1979-09-27 1981-07-14 Leeds & Northrup Company Boiler control system
WO1985002897A1 (en) * 1983-12-20 1985-07-04 HB-CONSULT RA^oDGIVANDE INGENJÖRER AB Boiler with a shaking grate
US4838183A (en) * 1988-02-11 1989-06-13 Morse Boulger, Inc. Apparatus and method for incinerating heterogeneous materials
US5239935A (en) * 1991-11-19 1993-08-31 Detroit Stoker Company Oscillating damper and air-swept distributor

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6336449B1 (en) 1997-04-24 2002-01-08 Dell-Point Combustion Inc. Solid fuel burner for a heating apparatus
WO1998048219A1 (en) * 1997-04-24 1998-10-29 Dell-Point Combustion Inc. Solid fuel burner for a heating apparatus
EP0952398A2 (de) * 1998-04-17 1999-10-27 Dr. Schoppe Technologie GmbH Verfahren und Vorrichtung zur Zuführung des Windes zur Verbrennung von stückigem Brennstoff
EP0952398A3 (de) * 1998-04-17 2000-03-08 Dr. Schoppe Technologie GmbH Verfahren und Vorrichtung zur Zuführung des Windes zur Verbrennung von stückigem Brennstoff
US6412446B1 (en) 1998-07-10 2002-07-02 Fls Miljo A/S Method of firing in a boiler and a boiler for using the method
WO2000003179A1 (en) * 1998-07-10 2000-01-20 Fls Miljø A/S A method of firing in a boiler and a boiler for using the method
AU745357B2 (en) * 1998-07-10 2002-03-21 Dp Clean Tech Europe A/S A method of firing in a boiler and a boiler for using the method
EP1106921A1 (de) 1999-12-09 2001-06-13 Ansaldo Volund A/S Verfahren zum Betrieb eines schwingenden Rostes in einer Biomasseverbrennungsanlage
WO2001042710A1 (en) * 1999-12-09 2001-06-14 Babcock & Wilcox Vølund Aps Method of operating a vibrating grate in a biomass-fired plant
EP1197706A3 (de) * 2000-10-12 2002-07-31 MARTIN GmbH für Umwelt- und Energietechnik Verfahren zum Verbrennnen von Abfallprodukten
EP1197706A2 (de) * 2000-10-12 2002-04-17 MARTIN GmbH für Umwelt- und Energietechnik Verfahren zum Verbrennnen von Abfallprodukten
EP1331440A1 (de) 2002-01-25 2003-07-30 Tulikivi Oyj Feuerstelle
EP1607680A1 (de) 2004-06-17 2005-12-21 General Electric Company Brennkammer mit Oberluftinjektion
JP2006003074A (ja) * 2004-06-17 2006-01-05 General Electric Co <Ge> 上部炉アーチを通しての煙道ガスへの貫入と混合のためのオーバファイア空気の噴射
WO2014006459A1 (en) * 2012-07-06 2014-01-09 Babcock & Wilcox Vølund A/S Vibrating grate stoker
ITUB20160520A1 (it) * 2016-01-29 2017-07-29 Rivoira Gas S R L Metodo migliorato per la combustione di biomasse in un boiler con alimentazione a lancio (spread-striker) e relativo boiler
WO2019046972A1 (en) * 2017-09-11 2019-03-14 Enero Solutions Inc. DYNAMIC HEAT RELEASE CALCULATION FOR ENHANCED FEEDBACK CONTROL OF COMBUSTION PROCESS BASED ON SOLID FUEL
CN111727347A (zh) * 2017-09-11 2020-09-29 艾罗创新公司 改进基于固体燃料燃烧过程的反馈控制的动态热释放计算
US11867391B2 (en) 2017-09-11 2024-01-09 Enero Inventions Inc. Dynamic heat release calculation for improved feedback control of solid-fuel-based combustion processes
CN108916905A (zh) * 2018-07-20 2018-11-30 潘真清 多风道物燃料采暖炉

Also Published As

Publication number Publication date
DE69610670T2 (de) 2001-05-23
DK84295A (da) 1997-01-19
EP0754907A3 (de) 1998-05-20
EP0754907B1 (de) 2000-10-18
DK172248B1 (da) 1998-02-02
DE69610670D1 (de) 2000-11-23
ES2153553T3 (es) 2001-03-01

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