EP0111874A1 - Installation pour brûler la poussière de charbon - Google Patents

Installation pour brûler la poussière de charbon Download PDF

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Publication number
EP0111874A1
EP0111874A1 EP83112521A EP83112521A EP0111874A1 EP 0111874 A1 EP0111874 A1 EP 0111874A1 EP 83112521 A EP83112521 A EP 83112521A EP 83112521 A EP83112521 A EP 83112521A EP 0111874 A1 EP0111874 A1 EP 0111874A1
Authority
EP
European Patent Office
Prior art keywords
muffle
chamber
nozzles
cross
coal dust
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
EP83112521A
Other languages
German (de)
English (en)
Other versions
EP0111874B1 (fr
Inventor
Dietrich Buss
Klaus Dipl.-Ing. Brücher
Wilhelm Ing. Grad. Wenz
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.)
Gewerkschaft Sophia-Jacoba Steinkohlenbergwerk
Original Assignee
Gewerkschaft Sophia-Jacoba Steinkohlenbergwerk
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 Gewerkschaft Sophia-Jacoba Steinkohlenbergwerk filed Critical Gewerkschaft Sophia-Jacoba Steinkohlenbergwerk
Priority to ZA841327A priority Critical patent/ZA841327B/xx
Publication of EP0111874A1 publication Critical patent/EP0111874A1/fr
Application granted granted Critical
Publication of EP0111874B1 publication Critical patent/EP0111874B1/fr
Expired legal-status Critical Current

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Classifications

    • 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 
    • F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber
    • F23C3/006—Combustion apparatus characterised by the shape of the combustion chamber the chamber being arranged for cyclonic combustion
    • F23C3/008—Combustion apparatus characterised by the shape of the combustion chamber the chamber being arranged for cyclonic combustion for pulverulent fuel

Definitions

  • the invention is based on a device for burning in particular inert carbon dust.
  • the invention provides the combination of the features of the characterizing part of the main claim.
  • the features of the subclaims serve for improvement and further development of the features of the main claim.
  • a gas or oil burner is known in which the side wall of the burner chamber is provided with openings and is surrounded by a jacket-like chamber from which air can enter the burner chamber through the openings.
  • the air flow is selected so that the air is first directed axially against the burner on the inner wall of the burner chamber, in order to be turned there by 180 ° and then to flow in the axial direction of the burner chamber, optionally with the creation of turbulence.
  • the purpose of this device is to achieve an intimate mixing of the air with the liquid fuel or the gas.
  • the object of the invention, as set out above, is neither intended nor achievable with this device. An ash build-up is eliminated, as is the effort to achieve a high burnout of the solid fuel.
  • rotary-flow dedusters are also known, in which an internal air flow set in a swirling movement is overlaid by a similar, but opposite, air flow, so that when the deduster is standing, the cleaned air can escape upward near the axis of the deduster, while following by the centrifugal forces Dust moving outside due to the additional helical air flow and gravity is passed below and can be pulled off at the lower end of the device.
  • VDI Reports No. 363, 1980, pp. 61-68 and "Staub" 23, 1953, No. 11, pp. 491-509 There has also been no lack of attempts to make the principle of this three-phase dust extractor usable for a coal dust burner.
  • the invention also has one for this Path, whereby the heating of the wall of the acceleration chamber had to be taken into account, with rigid gas or air nozzles in the wall of the acceleration chamber, which makes it possible to optimally adjust the length of time for the coal dust in this chamber.
  • the ash discharge at the front end of the acceleration chamber provides the necessary information.
  • the rigid arrangement of the nozzles in the proposed manner brought about a solution that can also be used for continuous operation with a residence time of the coal dust particles / in the acceleration plates chamber, which means that a significantly larger proportion of coal dust actually burns and the proportion of unburned ash is reduced.
  • the removal of flue gases from undesired gases or components by additives is known.
  • desulfurization e.g. lime is added to the combustion chamber.
  • the invention offers the possibility of using the additives selectively and differently over the length of the acceleration chamber, i.e. at the most convenient point in connection with the gas supplied to the nozzles.
  • the device according to the invention has a burner muffle 1 on, which is conical and widens from its front end 2 to its rear end at 3.
  • the front end 2 has a swirl device 4 in which the combustion air to be introduced via the line 5 is introduced tangentially into the muffle 1 and displaced in a helical swirl flow 6 in the muffle.
  • the other devices such as the ignition device, etc. are not shown in detail and are of a known type.
  • a tubular blow lance 7 protrudes through the burner muffle 1 in its longitudinal axis. near the rear end of the muffle 3, carries a cap-like part 8, which causes the direction of the conveying air for the coal dust and the coal dust itself in the blowing lance 7 (see arrow 7a) to be reversed and in the direction of arrows 9 from the emerge cap-like part.
  • a circulating flow of the coal dust and the conveying air occurs in the direction of the arrows 10 around the lance 7, the external flow part 10a of which is caught by the flow 6 of the combustion air and is carried along in a helical shape, while the remaining part 10b along the lance 7 against the front muffle end flows.
  • the combustion air passes from the muffle 1 into an accelerator chamber 11, the helical swirl movement of the combustion air as the inner swirl flow 12 is maintained along the solid line.
  • the flame 13 forms which, for example, projects into the boiler space 14 of the downstream boiler 15.
  • the accelerator chamber 11 has a conical shape, the wall 16 of the accelerator chamber 11 tapering from its front end to its rear end 17.
  • the cross-section of the accelerator chamber 11 at the transition between the muffle 1 and the accelerator chamber is kept larger than the cross-section at the rear end 3 of the burner muffle 1.
  • a part of the coal dust from the ring channel 18 is caught again by the internal flow 12, since it hits the wall 29 of the ring channel and is thereby directed into the interior of the muffle 1 or the accelerator chamber 11.
  • the annular channel can preferably experience such a curvature or beveling of its wall 29 adjacent to the muffle 1 that the coal dust parts from the extension 19 are again guided into the interior of the muffle 1 or the accelerator chamber 11. "
  • the swirl flow 12 and the front end of the flame 13 retain their shape in the accelerator 11 and do not enlarge in the enlargement 19, which can be used to allow the return of the dust and ash particles along the wall 12 of the chamber 1 .
  • the long return path which the dust particles in the muffle 1 and the accelerator chamber 11 take repeatedly, ensures that a long combustion path is achieved with a short design of the device.
  • the radiant heat of the already ignited coal particles acts both on the way there (from left to right) and on the way back (from right to left in the drawing) on the dust particles that have not yet ignited.
  • the length of the accelerator chamber 11 as well as its outer shape can be varied.
  • the accelerator chamber can have a cylindrical shape, and its length can be chosen so that the flame 13, which projects into the boiler space 15, can be made longer or shorter.
  • the nozzles 20-27 of the individual cross-sectional planes A to E of the acceleration chamber 11 are arranged at different inclinations to the cross-sectional plane.
  • the nozzles 24-27 of levels D and E have a slight inclination towards the front end and the ring channel 18 of the chamber 11.
  • the nozzles of level C either have the same direction of inclination as the nozzles 24-27, for. B. the nozzle 23, or they have no inclination to the cross-sectional plane C, so z. B. the nozzle 22.
  • the nozzles 20 and 21 are inclined with respect to their cross-sectional planes in the direction of the rear end 17 of the acceleration chamber 11.
  • the angular position can not only differ from cross-sectional plane to cross-sectional plane, but also within a cross-sectional plane, as can be seen from the nozzles 22, 23 of plane C in FIG. 1.
  • the number of nozzles can also differ from cross-sectional level to cross-sectional level. 2 shows a total of six nozzles 24-24b and 25-25b, while level B has only three nozzles 21, 31, 31a.
  • FIGS. 2 and 3 show that the angles between the nozzles and the corresponding tangents T 2 and T 3 of the wall 16 of the Accelerator chamber 11 can be different.
  • the feed lines 124 to 125b of the nozzles 24-25b are combined into two groups, the feed lines 124-124b in a tube 224 with a valve 324 open or pass over, while the feed lines 125-125b open or pass into a common pipe 225 with valve 325. Both pipes receive the gas or air from a line 100.
  • Fig. 3 it is shown that an unequal number of nozzles on one level can be supplied with different additives.
  • valves 324, 325 and 425a, 525a allow a precise adjustment of the amount of gas or air to be supplied or the amount of additives. This makes it possible, on the one hand, to regulate the outer swirl flow 28 very precisely, ie to accelerate or decelerate it, in order to expose the dust particles to this flow for more or less long to the radiant heat of the inner swirl flow 12 and thus to burn as many coal dust particles as possible. On the other hand, it is also possible to introduce additives in the desired amount into the chamber 11. The additive, and this is essential when adding the additives, is not added with the coal dust or the combustion air, but at a later time When the coal dust has already ignited.
  • the nozzles 20-27 are preferably permanently installed in the wall, but this does not rule out holding the nozzles in spherical parts and making them pivotable in spherical caps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
EP83112521A 1982-12-15 1983-12-13 Installation pour brûler la poussière de charbon Expired EP0111874B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA841327A ZA841327B (en) 1983-12-13 1984-02-23 Combustion device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3246379 1982-12-15
DE3246379 1982-12-15

Publications (2)

Publication Number Publication Date
EP0111874A1 true EP0111874A1 (fr) 1984-06-27
EP0111874B1 EP0111874B1 (fr) 1987-04-22

Family

ID=6180704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112521A Expired EP0111874B1 (fr) 1982-12-15 1983-12-13 Installation pour brûler la poussière de charbon

Country Status (4)

Country Link
US (1) US4507075A (fr)
EP (1) EP0111874B1 (fr)
CA (1) CA1209408A (fr)
DE (1) DE3371114D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523172C1 (de) * 1985-06-28 1986-12-11 Gewerkschaft Sophia-Jacoba Steinkohlenbergwerk, 5142 Hückelhoven Vorrichtung zum Verbrennen von reaktionstraegem Kohlenstaub
DE3643040C1 (de) * 1986-12-17 1988-02-25 Gewerk Sophia Jakoba Vorrichtung zum Verbrennen von Kohlenstaub
DE3636071A1 (de) * 1986-10-23 1988-08-25 Gewerk Sophia Jakoba Einrichtung zum verbrennen, insbesondere von reaktionstraegem kohlenstaub
WO2004028111A1 (fr) 2002-09-20 2004-04-01 Cisco Technology, Inc. Procede et dispositif associes a une passerelle servant a mettre en correspondance des routeurs mobiles de reseau mobile ad hoc avec leurs agents locaux respectifs

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3436624A1 (de) * 1984-10-05 1986-04-10 Norddeutsche Affinerie AG, 2000 Hamburg Vorrichtung zur erzeugung zuendfaehiger feststoff/gas-suspensionen
US4539918A (en) * 1984-10-22 1985-09-10 Westinghouse Electric Corp. Multiannular swirl combustor providing particulate separation
US4629416A (en) * 1985-06-11 1986-12-16 Voorheis Industries, Inc. Bluff body register
US4958619A (en) * 1985-07-08 1990-09-25 Institute Of Gas Technology Portable, flueless, low nox, low co space heater
US5009174A (en) * 1985-12-02 1991-04-23 Exxon Research And Engineering Company Acid gas burner
US4873930A (en) * 1987-07-30 1989-10-17 Trw Inc. Sulfur removal by sorbent injection in secondary combustion zones
US4800825A (en) * 1987-08-31 1989-01-31 Trw Inc. Slagging-combustor sulfur removal process and apparatus
US5307636A (en) * 1987-11-20 1994-05-03 Sundstrand Corporation Staged, coaxial, multiple point fuel injection in a hot gas generator having a sufficiently wide cone angle
US4871308A (en) * 1987-11-25 1989-10-03 Combustion Concepts Inc. Method and apparatus for heating a fluid stream
US4928479A (en) * 1987-12-28 1990-05-29 Sundstrand Corporation Annular combustor with tangential cooling air injection
US4920898A (en) * 1988-09-15 1990-05-01 Trw Inc. Gas turbine slagging combustion system
WO1990003538A1 (fr) * 1988-09-19 1990-04-05 Regents Of The University Of Minnesota Enceinte de confinement dynamique
US5111757A (en) * 1991-05-21 1992-05-12 Regents Of The University Of Minnesota Dynamic containment vessel
US5809910A (en) * 1992-05-18 1998-09-22 Svendssen; Allan Reduction and admixture method in incineration unit for reduction of contaminants
US5281132A (en) * 1992-08-17 1994-01-25 Wymaster Noel A Compact combustor
DE4416650A1 (de) * 1994-05-11 1995-11-16 Abb Management Ag Verbrennungsverfahren für atmosphärische Feuerungsanlagen
US8449288B2 (en) * 2003-03-19 2013-05-28 Nalco Mobotec, Inc. Urea-based mixing process for increasing combustion efficiency and reduction of nitrogen oxides (NOx)
US7670569B2 (en) * 2003-06-13 2010-03-02 Mobotec Usa, Inc. Combustion furnace humidification devices, systems & methods
US7537743B2 (en) * 2004-02-14 2009-05-26 Mobotec Usa, Inc. Method for in-furnace regulation of SO3 in catalytic NOx reducing systems
US8251694B2 (en) * 2004-02-14 2012-08-28 Nalco Mobotec, Inc. Method for in-furnace reduction flue gas acidity
EP1756474A1 (fr) * 2004-04-30 2007-02-28 Icopal A/S Dispositif de chauffage au gaz et procede permettant de generer un ecoulement d'air chaud
EP2239499B1 (fr) 2005-04-12 2016-07-27 Zilkha Biomass Power I LLC Système intégré de turbine à gaz à biomasse avec un combusteur cyclonique
US7410356B2 (en) 2005-11-17 2008-08-12 Mobotec Usa, Inc. Circulating fluidized bed boiler having improved reactant utilization
ZA200902204B (en) * 2006-09-29 2010-07-28 Zilkha Biomass Energy Llc Integrated biomass energy system
US8011108B2 (en) * 2008-04-04 2011-09-06 Robert Upthegrove Leveling device
US8069824B2 (en) * 2008-06-19 2011-12-06 Nalco Mobotec, Inc. Circulating fluidized bed boiler and method of operation
US8161725B2 (en) * 2008-09-22 2012-04-24 Pratt & Whitney Rocketdyne, Inc. Compact cyclone combustion torch igniter
CN101865461B (zh) * 2010-06-08 2014-06-04 上海市特种设备监督检验技术研究院 一种可调式中心给粉旋流煤粉浓淡燃烧器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1910735A (en) * 1927-02-14 1933-05-23 Buttnerwerke A G Burner for coal dust firing
GB616300A (en) * 1945-05-16 1949-01-19 Bendix Aviat Corp Burner
DE2527618A1 (de) * 1975-06-20 1977-01-13 Schoppe Fritz Verfahren und vorrichtung zur verbrennung von kohlenstaub
US4043512A (en) * 1976-01-23 1977-08-23 Foster Wheeler Energy Corporation Coal burner
WO1982003261A1 (fr) * 1981-03-17 1982-09-30 Inc Trw Bruleur

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579983A (en) * 1969-05-05 1971-05-25 Snecma Improvements in or relating to combustion chambers
NL7801395A (nl) * 1977-02-23 1978-08-25 Foerenade Fabriksverken Werkwijze en inrichting voor het verbranden van vloeibare, gasvormige of poedervormige brandstoffen.
US4389185A (en) * 1980-10-31 1983-06-21 Alpkvist Jan A Combustor for burning a volatile fuel with air

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1910735A (en) * 1927-02-14 1933-05-23 Buttnerwerke A G Burner for coal dust firing
GB616300A (en) * 1945-05-16 1949-01-19 Bendix Aviat Corp Burner
DE2527618A1 (de) * 1975-06-20 1977-01-13 Schoppe Fritz Verfahren und vorrichtung zur verbrennung von kohlenstaub
US4043512A (en) * 1976-01-23 1977-08-23 Foster Wheeler Energy Corporation Coal burner
WO1982003261A1 (fr) * 1981-03-17 1982-09-30 Inc Trw Bruleur

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523172C1 (de) * 1985-06-28 1986-12-11 Gewerkschaft Sophia-Jacoba Steinkohlenbergwerk, 5142 Hückelhoven Vorrichtung zum Verbrennen von reaktionstraegem Kohlenstaub
EP0207478A1 (fr) * 1985-06-28 1987-01-07 Gewerkschaft Sophia-Jacoba Steinkohlenbergwerk Dispositif pour la combustion, en particulier de charbon pulvérisé passif
DE3636071A1 (de) * 1986-10-23 1988-08-25 Gewerk Sophia Jakoba Einrichtung zum verbrennen, insbesondere von reaktionstraegem kohlenstaub
DE3643040C1 (de) * 1986-12-17 1988-02-25 Gewerk Sophia Jakoba Vorrichtung zum Verbrennen von Kohlenstaub
WO2004028111A1 (fr) 2002-09-20 2004-04-01 Cisco Technology, Inc. Procede et dispositif associes a une passerelle servant a mettre en correspondance des routeurs mobiles de reseau mobile ad hoc avec leurs agents locaux respectifs

Also Published As

Publication number Publication date
US4507075A (en) 1985-03-26
DE3371114D1 (en) 1987-05-27
CA1209408A (fr) 1986-08-12
EP0111874B1 (fr) 1987-04-22

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