DE629909C - Pulverized coal burners - Google Patents

Pulverized coal burners

Info

Publication number
DE629909C
DE629909C DED56677D DED0056677D DE629909C DE 629909 C DE629909 C DE 629909C DE D56677 D DED56677 D DE D56677D DE D0056677 D DED0056677 D DE D0056677D DE 629909 C DE629909 C DE 629909C
Authority
DE
Germany
Prior art keywords
dust
air
pulverized coal
coal burners
burners
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.)
Expired
Application number
DED56677D
Other languages
German (de)
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.)
Deutsche Babcock and Wilcox Dampfkesselwerke AG
Original Assignee
Deutsche Babcock and Wilcox Dampfkesselwerke AG
Publication date
Priority to DED56677D priority Critical patent/DE629909C/en
Application granted granted Critical
Publication of DE629909C publication Critical patent/DE629909C/en
Expired legal-status Critical Current

Links

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 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D1/00—Burners for combustion of pulverulent fuel

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Description

Kohlenstaubbrenner Die Erfindung betrifft einen Wirbelbrenner für Kohlenstaub mit Luftzuführung in mehreren gleichachsigen Rohren und besteht darin, daß die Rohre am Staubeintritt mit spiralförmigen Gehäusen versehen sind, welche stufenförmig aufeinanderliegen. Es ist bekannt, bei Kohlenstaubbrennern die Staubluft mittels eines spiralförmigen Gehäuses einem ringförmigen Schlitz zuzuführen. Weiter ist es bekannt, Staubluft und Reinluft durch einander gleichachsig umschließende Rohre einzublasen, ebenso, Luft und Staubluft tangential in die Ringräume einzuführen. Hierbei wurde die äußere Kante des Zuführungsrohres tangierend an den Zylindermantel geführt. Zur Vermeidung von Stoßverlusten, welche besonders für die Gleichmäßigkeit des Staub-Luft-Gemisches schädlich sind, muß j edoch die innere Kante des Zuführungsrohres den Mantel tangieren. Die äußere ist deshalb in Spiralform an das Gehäuse heranzuführen. Damit dieses bei Kohlenstaubbrennern, welche eine gedrängte Anordnung bedingen, möglich ist, werden die Spiralgehäuse tufenförmig übereinandergelegt. Die Anordnung nach der Erfindung ist in den Abb. i und 2 dargestellt. Jede Spirale ist mit dem zugehörigen Mantelrohr verbunden. Die einzelnen Rohre werden ineinandergesteckt und an den Spiralgehäusen miteinander verschraubt. Die Spiralen können gleich- oder abwechselnd entgegengesetzt gerichtet sein. Kommen die Rohrleitungen aus verschiedenen Richtungen an, so können die Gehäuse entsprechend gedreht werden im Maße der Schraubenteilung.Coal dust burner The invention relates to a vortex burner for Coal dust with air supply in several coaxial tubes and consists of that the pipes are provided with spiral housings at the dust inlet, which lie on top of each other in steps. It is known that dust air is present in pulverized coal burners to be fed to an annular slot by means of a spiral housing. Further it is known to contain dust air and clean air by enclosing each other on the same axis Blowing in pipes, as well as introducing air and dust air tangentially into the annular spaces. Here, the outer edge of the feed pipe was tangent to the cylinder jacket guided. To avoid shock losses, which is especially important for the evenness of the dust-air mixture are harmful, however, the inner edge of the supply pipe must touch the coat. The outer one must therefore be brought up to the housing in a spiral shape. So that this in the case of pulverized coal burners, which require a compact arrangement, is possible, the volute casings are laid one on top of the other in steps. The order according to the invention is shown in Figs. Every spiral is with that associated jacket pipe connected. The individual tubes are plugged into one another and screwed together on the volute casing. The spirals can be equal or alternately directed in opposite directions. The pipelines come from different ones Directions, the housing can be rotated accordingly to the extent of the screw pitch.

Claims (1)

PATENTANSPRUCH: Kohlenstaubbrenner mit mehreren gleichachsig angeordneten kreiszylindrischen Rohren verschiedener Weite, welche Luft und Staubluft in mehreren ringförmigen Schichten getrennt bis zur Einmündung in den Brennraum führen, dadurch gekennzeichnet, daß die Rohre am Staubeintritt mit spiralförmigen Gehäusen versehen sind, welche stufenförmig aufeinanderliegen.PATENT CLAIM: Coal dust burners with several coaxially arranged circular cylindrical pipes of various widths, which air and dust air in several ring-shaped layers lead separately to the confluence in the combustion chamber, thereby characterized in that the tubes are provided with spiral housings at the dust inlet are, which are stepped on top of each other.
DED56677D Pulverized coal burners Expired DE629909C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED56677D DE629909C (en) Pulverized coal burners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED56677D DE629909C (en) Pulverized coal burners

Publications (1)

Publication Number Publication Date
DE629909C true DE629909C (en) 1936-05-18

Family

ID=7056954

Family Applications (1)

Application Number Title Priority Date Filing Date
DED56677D Expired DE629909C (en) Pulverized coal burners

Country Status (1)

Country Link
DE (1) DE629909C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951752C (en) * 1951-10-23 1956-10-31 Ernst Maase Gas nozzle for regenerative ovens
US2822766A (en) * 1951-01-26 1958-02-11 Babcock & Wilcox Co Fuel burning apparatus
DE1024191B (en) * 1954-06-18 1958-02-13 Steinmueller Gmbh L & C Cyclone combustion chamber lined with cooling tubes
DE1108666B (en) * 1956-01-21 1961-06-15 Krauss Maffei Ag Device for mixing a flowing working substance with at least one flowing medium made of gas or a liquid
DE1270726B (en) * 1958-01-24 1968-06-20 Basf Ag Process and swirl chamber combustion for burning doughy fuels
US4422389A (en) * 1981-07-01 1983-12-27 Deutsche Babcock Aktiengesellschaft Solid-fuel burner
FR2535018A1 (en) * 1982-10-22 1984-04-27 Air Liquide PULVERIZED CHARCOAL BURNER

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2822766A (en) * 1951-01-26 1958-02-11 Babcock & Wilcox Co Fuel burning apparatus
DE951752C (en) * 1951-10-23 1956-10-31 Ernst Maase Gas nozzle for regenerative ovens
DE1024191B (en) * 1954-06-18 1958-02-13 Steinmueller Gmbh L & C Cyclone combustion chamber lined with cooling tubes
DE1108666B (en) * 1956-01-21 1961-06-15 Krauss Maffei Ag Device for mixing a flowing working substance with at least one flowing medium made of gas or a liquid
DE1270726B (en) * 1958-01-24 1968-06-20 Basf Ag Process and swirl chamber combustion for burning doughy fuels
US4422389A (en) * 1981-07-01 1983-12-27 Deutsche Babcock Aktiengesellschaft Solid-fuel burner
FR2535018A1 (en) * 1982-10-22 1984-04-27 Air Liquide PULVERIZED CHARCOAL BURNER

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