EP0130316A1 - Dispositif d'alimentation pneumatique à charbon pulvérisé - Google Patents

Dispositif d'alimentation pneumatique à charbon pulvérisé Download PDF

Info

Publication number
EP0130316A1
EP0130316A1 EP84105237A EP84105237A EP0130316A1 EP 0130316 A1 EP0130316 A1 EP 0130316A1 EP 84105237 A EP84105237 A EP 84105237A EP 84105237 A EP84105237 A EP 84105237A EP 0130316 A1 EP0130316 A1 EP 0130316A1
Authority
EP
European Patent Office
Prior art keywords
coal dust
injector
nozzle
burner according
dust burner
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.)
Withdrawn
Application number
EP84105237A
Other languages
German (de)
English (en)
Inventor
Ulf Brieslinger
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
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 filed Critical Ruhrkohle-Carborat GmbH
Publication of EP0130316A1 publication Critical patent/EP0130316A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • C10J3/50—Fuel charging devices
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • C10J3/50—Fuel charging devices
    • C10J3/503—Fuel charging devices for gasifiers with stationary fluidised bed
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/093—Coal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0956—Air or oxygen enriched air
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1861—Heat exchange between at least two process streams
    • C10J2300/1869—Heat exchange between at least two process streams with one stream being air, oxygen or ozone
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1861—Heat exchange between at least two process streams
    • C10J2300/1884—Heat exchange between at least two process streams with one stream being synthesis gas
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1861—Heat exchange between at least two process streams
    • C10J2300/1892—Heat exchange between at least two process streams with one stream being water/steam

Definitions

  • the invention relates to pulverized coal burners; especially for hot water or steam boilers or hot gas generators.
  • Coal dust burners or dust burners are generally suitable for all types of coal. Dust furnaces are built up to 2,500 MW thermal output. Several single burners are interconnected in the large units. The output of the individual burners can be up to 70 MW. The lower limit for the use of dust firing is considered 1 MW. This limit is essentially economic.
  • coal dust burner Possible uses of the coal dust burner range from the ceramic industry, the metal industry, to hot gas generators for drying systems, hot air generators, cement rotary kilns, lime rotary and lime pouring furnaces, gypsum systems and boiler systems.
  • hot gas generators for drying systems
  • hot air generators cement rotary kilns
  • lime rotary and lime pouring furnaces gypsum systems and boiler systems.
  • gypsum systems gypsum systems and boiler systems.
  • the object of the invention is therefore to improve the dosage of coal dust burners.
  • a coal dust container which has a fluid base, an injector for air arranged above the fluid base and a nozzle arranged in the injector air flow.
  • the fluid floor allows a different mode of operation.
  • the fluid floor loosens up the coal dust in the container due to air entering.
  • the coal dust trickles everywhere, including between the injector and the nozzle, and is entrained in the nozzle by the air flow emerging from the injector and fed to the burner from the nozzle.
  • the latter is done, for example, via a line connected to the nozzle, which ends in the burner shirt of the coal dust burner, which surrounds the flame space of the burner.
  • the entry of air through the fluid base can be increased so that a fluidized bed with the coal dust particles in the container is created in the area of the injector and the nozzle.
  • a container 1 is provided at the lower end with a funnel 2, which opens into a cylindrical intermediate piece 3.
  • the cylinder intermediate piece 3 is flanged to the outlet opening of the funnel 2.
  • a fluid base 4 is flanged to the end of the cylindrical intermediate piece 3 facing away from the funnel 2.
  • the fluid base 4 consists of a spherical cap which is provided with a multiplicity of small air inlet openings arranged in an evenly distributed manner.
  • the fluid floor is designed double-bottomed and there are inlet openings in the inner floor.
  • the outer bottom forms a closed outer jacket and is provided with connection openings for connecting lines 5.
  • the amount of air supplied through the connecting lines 5 is 0.05-10 m 3 / hour. The amount of air depends on the amount of coal dust to be conveyed. It must be large enough that the container pressure rises and a pressure valve arranged on the container can respond. After the pressure valve responds, air is blown off.
  • This fluidization takes place between an injector 6 and a nozzle 7.
  • the injector 6 and the nozzle 7 are arranged in the cylindrical intermediate piece 3.
  • the distance between the fluid base, injector and nozzle is preferably 100-200 mm. It should not exceed 500 mm in order to ensure that the space between the injector and the fluid base is emptied and that there is no blockage of the fluid base 4.
  • an injector and a nozzle are shown. Their number can be four or eight depending on the requirements increase. Ultimately, only the spatial conditions set the limits. Injector 6 and nozzle 7 are preferably each arranged individually in an intermediate piece 3, so that the number of injectors and nozzles can be changed as desired by adding or removing intermediate pieces 3.
  • the arrangement of the injector 6 and the nozzle 7 varies. If the fluid base 4 is round, the injector 6 and the nozzle 7 are located centrally above the fluid base 4.
  • the injector consists of a pipeline with an interchangeable tip which is fixedly mounted in the intermediate piece 3.
  • the passage opening for air in the replaceable injector tip has an opening width of 5 to 20 mm.
  • the opening preferably has a diameter of 8 to 10 mm.
  • the nozzle 7 is provided with a funnel, the opening angle of which is 15 to 90 °, preferably 30 to 45 °.
  • the distance between the injector 6 and the nozzle 7 can be changed.
  • the amount of coal dust is influenced by changing the distance. In other words, if the gap is too great, funding can no longer be regulated. If the distance is too small, the funding will decrease. It becomes zero when the replaceable injector head is inserted in the nozzle funnel.
  • the injector can also be moved or the injector and nozzle can be moved together.
  • the injector 6 and nozzle 7 are smooth and are movably mounted in the jacket of the intermediate piece 3.
  • the opening width of the nozzle is smaller, at most equal to that of the injector 6. With an opening width of 8 to 10 mm in the injector 6, a nozzle bore of 3 to 5 mm diameter is provided.
  • the fluidization of the coal dust in the area of the injector 6 and the nozzle 7 ensures that the coal dust particles move easily between the nozzle 7 and the injector 6 and are entrained by the injector air flow into the funnel of the nozzle 7 and from there into the nozzle 7 itself.
  • the air stream emerging from the nozzle 7 is led from a pipeline 8 to the burner, where it opens into the burner shirt enclosing the flame space, which is formed, for example, by a ceramic jacket.
  • a pressure gauge switches a solenoid valve z. B. at 1 bar tank pressure. This container pressure builds up after some time when the fluid base is pressurized with 2 bar air pressure. At the same time, an injection pressure of 1.5 bar is provided. This setting ensures that enough air can flow into the container. Incoming air fluidizes the coal dust to be discharged.
  • the pressure gauge When enough pressure has built up in the container that the switching point of the pressure gauge is reached, the pressure gauge actuates a solenoid valve. Air is released from the container via the solenoid valve. The pressure control and the air outlet are designated by 9 in FIG. After the pressure drops to 0.05 bar, the solenoid valve is closed again and the fluidization process continues with a further increase in pressure in the container.
  • the above pressure setting is particularly suitable for short conveying paths from the nozzle 7 to the burner shirt, not shown.
  • the pressure is influenced by the length of the delivery path and the cross-section of the delivery line. As the length of the delivery path increases, the injection pressure and inflow pressure on the fluid floor change. Furthermore, the pressure at which the solenoid valve is actuated to blow air is increased.
  • a pressure of 4 bar is at the bottom of fluid, while the Injektordruck 3.5 bar be - wears.
  • the associated switching point of the manometer is 3 bar.
  • the operating pressure of container 1 is between 0.5 and 4 bar.
  • pressures of e.g. B. 8 bar are taken into account.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Air Transport Of Granular Materials (AREA)
EP84105237A 1983-05-13 1984-05-09 Dispositif d'alimentation pneumatique à charbon pulvérisé Withdrawn EP0130316A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3317404 1983-05-13
DE19833317404 DE3317404A1 (de) 1983-05-13 1983-05-13 Kohlenstaubbrenner

Publications (1)

Publication Number Publication Date
EP0130316A1 true EP0130316A1 (fr) 1985-01-09

Family

ID=6198863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84105237A Withdrawn EP0130316A1 (fr) 1983-05-13 1984-05-09 Dispositif d'alimentation pneumatique à charbon pulvérisé

Country Status (2)

Country Link
EP (1) EP0130316A1 (fr)
DE (1) DE3317404A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247235A1 (fr) * 1986-05-23 1987-12-02 Ruhrkohle-Carborat GmbH Dispositif de transport d'air comprimé et dispositif doseur
KR101271390B1 (ko) * 2005-01-12 2013-06-05 코닌클리케 필립스 일렉트로닉스 엔.브이. 전송 지연에 따라 이동국에서 대기시킨 패킷을 보내기 위한 기지국으로부터 허가 요청

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE393345C (de) * 1921-05-27 1924-04-08 Arbed Vorrichtung zum Mischen von Brennstoff und Primaerluft bei Kohlenstaubfeuerungen
DE2654662A1 (de) * 1975-12-04 1977-06-08 Shell Int Research Verfahren und vorrichtung zur teilverbrennung von kohlestaub
US4250816A (en) * 1976-12-16 1981-02-17 Pullman Incorporated, Pullman Swindell Division Particulate solid fuel combustion system
EP0063629A1 (fr) * 1981-04-29 1982-11-03 Ruhrkohle-Carborat GmbH Alimentation en charbon pulvérisé
EP0064688A1 (fr) * 1981-05-05 1982-11-17 Gewerkschaft Sophia-Jacoba Steinkohlenbergwerk Procédé et dispositif pour le stockage de lignite et d'houille pulvérisé et leurs mélanges dans un réservoir

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE393345C (de) * 1921-05-27 1924-04-08 Arbed Vorrichtung zum Mischen von Brennstoff und Primaerluft bei Kohlenstaubfeuerungen
DE2654662A1 (de) * 1975-12-04 1977-06-08 Shell Int Research Verfahren und vorrichtung zur teilverbrennung von kohlestaub
US4250816A (en) * 1976-12-16 1981-02-17 Pullman Incorporated, Pullman Swindell Division Particulate solid fuel combustion system
EP0063629A1 (fr) * 1981-04-29 1982-11-03 Ruhrkohle-Carborat GmbH Alimentation en charbon pulvérisé
EP0064688A1 (fr) * 1981-05-05 1982-11-17 Gewerkschaft Sophia-Jacoba Steinkohlenbergwerk Procédé et dispositif pour le stockage de lignite et d'houille pulvérisé et leurs mélanges dans un réservoir

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247235A1 (fr) * 1986-05-23 1987-12-02 Ruhrkohle-Carborat GmbH Dispositif de transport d'air comprimé et dispositif doseur
KR101271390B1 (ko) * 2005-01-12 2013-06-05 코닌클리케 필립스 일렉트로닉스 엔.브이. 전송 지연에 따라 이동국에서 대기시킨 패킷을 보내기 위한 기지국으로부터 허가 요청

Also Published As

Publication number Publication date
DE3317404A1 (de) 1984-11-22

Similar Documents

Publication Publication Date Title
DE3309664C2 (de) Verteiler für Fluide
DE3529144C2 (fr)
DE2416528A1 (de) Verfahren und vorrichtung zum brennen des ausgangsmaterials von zementherstellung
CH654395A5 (de) Verfahren und anlage zur versorgung mehrerer brenner einer feuerungsanlage mit koernigem oder pulverfoermigem brennstoff.
EP0201671B1 (fr) Ajutage pour l'introduction pneumatique de solides
EP0130316A1 (fr) Dispositif d'alimentation pneumatique à charbon pulvérisé
DE863780C (de) Vorrichtung zum pneumatischen Foerdern von koernigem oder staubfoermigem Gut
DE3140798C2 (de) Zündbrenner für eine Kraftwerkskesselfeuerung
DE444471C (de) Verfahren zum Foerdern von Kohlenstaub
EP0247235B1 (fr) Dispositif de transport d'air comprimé et dispositif doseur
EP0059904A1 (fr) Installation pour alimenter un récipient métallurgique ayant des points d'insufflation multiples en charbon et procédé pour faire fonctionner l'installation
DE3115236A1 (de) Wirbelbettfeuerung
EP0140075B1 (fr) Chargement de poussière dans une zone chaude
EP0159492A2 (fr) Procédé et foyer pour la diminution de la formation de NOx dans des chauffages au charbon pulvérisé, particulièrement dans des foyers à cendres fondues
DE3711323A1 (de) Verfahren und anordnung zum pneumatischen foerdern von feinkoernigen feststoffen in den feuerraum eines kessels
DE3602921A1 (de) Einspritzduese
DE1030257B (de) Vorrichtung zum kontinuierlichen pneumatischen Foerdern von feinkoernigem und pulverfoermigem Gut in senkrechten Foerderleitungen
EP3587924B1 (fr) Dispositif de transport pneumatique et dispositif de chauffage
DE3806710A1 (de) Brenner fuer einschachtoefen zum brennen von kalkstein
AT211934B (de) Ölfeuerungsanlage mit mehreren örtlich getrennten Einzelbrennern
WO1993000148A1 (fr) Dispositif de nettoyage par voie humide, notamment pour separer des impuretes gazeuses, liquides et/ou solides contenues dans des courants gazeux
DE2316464A1 (de) Ringkammerduese zum foerdern von schuettguetern nach dem pneumatischen duennstromprinzip
WO2008020299A2 (fr) Dispositif pour pulvériser des boues dans des fourneaux
DE654851C (de) In Feuerungen einzubauender kastenfoermiger Luftvorwaermer
DE1756069C (de) Vorrichtung zum pneumatischen Fördern in senkrechter Richtung von stetig aufgebbaren pulverförmigen Materialien

Legal Events

Date Code Title Description
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

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19850208

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BRIESLINGER, ULF