EP0063629A1 - Alimentation en charbon pulvérisé - Google Patents

Alimentation en charbon pulvérisé Download PDF

Info

Publication number
EP0063629A1
EP0063629A1 EP81103220A EP81103220A EP0063629A1 EP 0063629 A1 EP0063629 A1 EP 0063629A1 EP 81103220 A EP81103220 A EP 81103220A EP 81103220 A EP81103220 A EP 81103220A EP 0063629 A1 EP0063629 A1 EP 0063629A1
Authority
EP
European Patent Office
Prior art keywords
coal dust
burner
fluidized bed
reactor
line
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
EP81103220A
Other languages
German (de)
English (en)
Other versions
EP0063629B1 (fr
Inventor
Alois Dipl.-Ing. Schlütter
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.)
Ruhrkohle-Carborat GmbH
Original Assignee
Ruhrkohle-Carborat GmbH
Ruhrkohle AG
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 Ruhrkohle-Carborat GmbH, Ruhrkohle AG filed Critical Ruhrkohle-Carborat GmbH
Priority to EP81103220A priority Critical patent/EP0063629B1/fr
Priority to AT81103220T priority patent/ATE22605T1/de
Publication of EP0063629A1 publication Critical patent/EP0063629A1/fr
Application granted granted Critical
Publication of EP0063629B1 publication Critical patent/EP0063629B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/02—Pneumatic feeding arrangements, i.e. by air blast

Definitions

  • the invention relates to an entry of coal dust into a burner or Raaktor.
  • Coal dust input is a problem area in coal dust burners and in throat dust reactors.
  • the uniformity of the coal dust supply is decisive for the quality of a throat dust inlet
  • Zutsil devices such as cellular wheel locks, screw conveyor scales, etc. only loosen up the dust particle mix in bunkers and imperfectly, so that the material of different bulk densities clumps together in larger units and enters the burner. This leads to a fluctuating material flow, which is extremely unfavorable for combustion. At gl3ich. permanent oxygen supply then comes to unsuspicious reactions and to a decrease in the burner or Reactor power. Usually the pulsing of the Srennars or reactor is gas-spoken.
  • the object of the invention is to create a cooling entry system for coal dust greeners and reactors, which ensures a uniform entry flow of coal dust particles.
  • Oabsi emanates from the invention the idea of entering the coal particles intended for combustion as far as possible into the race or reactor with gas rings spaced from one another, so that each coal dust particle always receives the optimum oxygen content for combustion.
  • this is achieved by a fluidized bed with at least one immersed tube which projects into the fluidized bed and leads to the burner or reactor as a metering device or an air / oxygen or vitrified solution solution to the burner or reactor as a metering device, the line closing an intermittently Has opening.
  • the coal dust particles are fluidized in the fluidized bed. 3the particle is enveloped with air by itself and, when it is reached, is introduced from the fluidized bed into the burner or reactor.
  • Both the immersion tube and the line leading through the swirl bed according to the invention, as a metering device, enable an absolutely uniform entry which is infinitely variable in its quantity.
  • Oxygen can also be coated with oil or other combustion gas in the fluidized bed, since the fluidized bed is also an extremely suitable mixing device. Depending on the low temperature, liquid oxygen can also be mixed with the coal dust particles. In another way, the vortex bed also preheats the coal dust particle by partially burning and / or supplying suitable shark gases.
  • the coal dust particles intended for a burner are fluidized into a container 1 by means of blown-in air.
  • the coal dust particles are continuously conveyed into the container 1 from above via a schematically illustrated, adjustable cell lock 2.
  • the air enters the container 1 through an air supply line 3 below and swirls the coal dust particles in the container 1.
  • a fuel line 4 leads through the container 1.
  • the burner line leads from the container 1 to the dsm burner, not shown.
  • the Brsnnsr effet 4 has a recess within the container, which is filled by a rotatably arranged perforated disk 5. Instead of the perforated disc, a rotating cylinder Ver. find application.
  • the decisive factor is that there are through holes in the rotating body into which the carbon dust particles swirled in the container 1 can penetrate. Da3 requires a sufficient dwell time of the through-hole outside of the Brsnnorleeitung 4.
  • the Vorwsil from the speed of the Lochsehsibs 5 and its diameter, which is a multiple of the fürmossors the
  • the carbon dust particles that have penetrated are carried into the burner line 4 and discharged there to the burner by means of combustion air fed into the burner line 4.
  • the flow rate of the entry device according to the invention according to FIG. 1 can also be changed continuously by changing the speed of the rotating perforated disk.
  • an immersion tube 6 is arranged in the container 1 so that it can be advanced.
  • the dip tube 6 penetrates into the container 1 from above and is adjustable in height. It leads from the container 1 to the Brennsr, not shown. This allows the air pressed into the container 1 to escape through the dip tube 6 to the burner. This air takes the swirled coal dust particles in the container 1 and carries them into the burner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
EP81103220A 1981-04-29 1981-04-29 Alimentation en charbon pulvérisé Expired EP0063629B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP81103220A EP0063629B1 (fr) 1981-04-29 1981-04-29 Alimentation en charbon pulvérisé
AT81103220T ATE22605T1 (de) 1981-04-29 1981-04-29 Kohlenstaubeintrag.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81103220A EP0063629B1 (fr) 1981-04-29 1981-04-29 Alimentation en charbon pulvérisé

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP83111807.0 Division-Into 1981-04-29

Publications (2)

Publication Number Publication Date
EP0063629A1 true EP0063629A1 (fr) 1982-11-03
EP0063629B1 EP0063629B1 (fr) 1986-10-01

Family

ID=8187683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103220A Expired EP0063629B1 (fr) 1981-04-29 1981-04-29 Alimentation en charbon pulvérisé

Country Status (2)

Country Link
EP (1) EP0063629B1 (fr)
AT (1) ATE22605T1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066984B1 (fr) * 1981-06-09 1984-07-25 Coal Industry (Patents) Limited Système pour la distribution de matériau pulvérulent
EP0130316A1 (fr) * 1983-05-13 1985-01-09 Ruhrkohle-Carborat GmbH Dispositif d'alimentation pneumatique à charbon pulvérisé
EP0247235A1 (fr) * 1986-05-23 1987-12-02 Ruhrkohle-Carborat GmbH Dispositif de transport d'air comprimé et dispositif doseur
WO2009095290A2 (fr) * 2008-01-31 2009-08-06 Siemens Aktiengesellschaft Système de dosage de poussières
DE102008014475A1 (de) * 2008-03-17 2009-11-12 Uhde Gmbh Verfahren und Vorrichtung zur dosierten Entnahme eines fein- bis grobkörnigen Feststoffes oder Feststoffgemisches aus einem Vorratsbehälter
CN111964041A (zh) * 2020-08-26 2020-11-20 界首市华盛塑料机械有限公司 一种供能机构及基于该机构的锅炉辅机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT92107B (de) * 1918-11-26 1923-04-10 Comb E Economica Societa Anoni Brennstaubfeuerung.
DE393345C (de) * 1921-05-27 1924-04-08 Arbed Vorrichtung zum Mischen von Brennstoff und Primaerluft bei Kohlenstaubfeuerungen
DE456237C (de) * 1924-03-11 1928-02-22 Int Comb Eng Corp Verfahren zur Herstellung eines Brennstaubluftgemisches von Einfuehrung desselben in eine Feuerkammer
DE2654662A1 (de) * 1975-12-04 1977-06-08 Shell Int Research Verfahren und vorrichtung zur teilverbrennung von kohlestaub

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT92107B (de) * 1918-11-26 1923-04-10 Comb E Economica Societa Anoni Brennstaubfeuerung.
DE393345C (de) * 1921-05-27 1924-04-08 Arbed Vorrichtung zum Mischen von Brennstoff und Primaerluft bei Kohlenstaubfeuerungen
DE456237C (de) * 1924-03-11 1928-02-22 Int Comb Eng Corp Verfahren zur Herstellung eines Brennstaubluftgemisches von Einfuehrung desselben in eine Feuerkammer
DE2654662A1 (de) * 1975-12-04 1977-06-08 Shell Int Research Verfahren und vorrichtung zur teilverbrennung von kohlestaub

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066984B1 (fr) * 1981-06-09 1984-07-25 Coal Industry (Patents) Limited Système pour la distribution de matériau pulvérulent
EP0130316A1 (fr) * 1983-05-13 1985-01-09 Ruhrkohle-Carborat GmbH Dispositif d'alimentation pneumatique à charbon pulvérisé
EP0247235A1 (fr) * 1986-05-23 1987-12-02 Ruhrkohle-Carborat GmbH Dispositif de transport d'air comprimé et dispositif doseur
WO2009095290A2 (fr) * 2008-01-31 2009-08-06 Siemens Aktiengesellschaft Système de dosage de poussières
WO2009095290A3 (fr) * 2008-01-31 2011-03-10 Siemens Aktiengesellschaft Système de dosage de poussières
DE102008014475A1 (de) * 2008-03-17 2009-11-12 Uhde Gmbh Verfahren und Vorrichtung zur dosierten Entnahme eines fein- bis grobkörnigen Feststoffes oder Feststoffgemisches aus einem Vorratsbehälter
CN111964041A (zh) * 2020-08-26 2020-11-20 界首市华盛塑料机械有限公司 一种供能机构及基于该机构的锅炉辅机

Also Published As

Publication number Publication date
EP0063629B1 (fr) 1986-10-01
ATE22605T1 (de) 1986-10-15

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