DE428952C - Pulverized fuel combustion - Google Patents
Pulverized fuel combustionInfo
- Publication number
- DE428952C DE428952C DEW64786D DEW0064786D DE428952C DE 428952 C DE428952 C DE 428952C DE W64786 D DEW64786 D DE W64786D DE W0064786 D DEW0064786 D DE W0064786D DE 428952 C DE428952 C DE 428952C
- Authority
- DE
- Germany
- Prior art keywords
- dust
- combustion chamber
- fuel combustion
- pulverized fuel
- air mixture
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
- B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
- B05B1/265—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being symmetrically deflected about the axis of the nozzle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
Description
AUSGEGEBEN AM 15. MAI 1926 ISSUED MAY 15, 1926
PATENTSCHRIFTPATENT LETTERING
(W 64786 VI24I)(W 64786 VI24I)
Brennstaubfeuerung. Patentiert im Deutschen Reiche vom 16. Oktober 1923 ab. Pulverized fuel combustion. Patented in the German Empire on October 16, 1923.
Es ist bekannt, daß nach den bisherigen Erfahrungen mit Staubfeuerungsdüsen, bei welchen das Staubluftgemisch also ohne Sondermischvorrichtungen in den Verbrennungsraum eintritt, je nach den Druckverhältnissen des Exhaustors mehr oder weniger lange Stichflammen entstehen, die auf das Mauerwerk schädigend einwirken, ferner einen langen Verbrennungsraum erforderlich machen und zur Entzündung des kegelstrahlförmig in die Verbrennungskammer eingeleiteten Staubluftgemisches stark überhitzte Seiten-It is known that, according to previous experience with dust firing nozzles, at which the dust air mixture so without special mixing devices in the combustion chamber occurs, depending on the pressure conditions of the exhaustor more or less long Jet flames arise, which have a damaging effect on the masonry, as well as a long one Make combustion chamber necessary and ignite the cone beam dust air mixture introduced into the combustion chamber, strongly overheated side air
wände der Verbrennungskammer erheischen, damit durch die strahlende Wärme der kegelförmige Staubluftstrom auch bis in seinen Kern plötzlich zur Entzündung gebracht werden kann.The walls of the combustion chamber require the radiant heat to create the cone-shaped Dust airflow can also suddenly be caused to ignite right up to its core.
Nach der Erfindung sollen diese Nachteile auf folgende Weise beseitigt werden:According to the invention, these disadvantages are to be eliminated in the following way:
Der Staub wird in der bekannten Weise mit Luft gemischt. Das Staubluftgemisch ίο dringt durch eine runde Düse, die etwa mit der inneren Wand der Verbrennungskammer abschneidet. Die Düse hat einen kopfartigen, aus feuerfestem Stein hergestellten Ausbau, der in den Feuerraum hineinragt. Dieser Ausbau enthält in der dem Feuerraum zugekehrten Seite Öffnungen, durch die das Staubluftgemisch zwangläufig hindurchgedrückt wird. Dies so ausgetretene Gemisch trifft auf eine ebenfalls aus feuerfestem Stein hergestellte Kugelhaube und wird hier zum Teil zurückgeworfen, wobei eine Entzündung an der Kugelhaube stattfinden muß und wodurch ferner eine kugelförmig ausgebreitete Flamme entsteht. Der Erfindungsgedanke baut sich nicht etwa darauf auf,, daß irgendeine Mischung in der Düse vorgenommen wird, sondern darauf, daß die hierin vorgenommene Druckabdrosselung begünstigend auf die kugelförmige Ausbildung der Flamme wirken soll. Dieses Staubluftgemisch wird in seinem so vorbereitend abgedrosselten Zustand beim Auftreffen gegen die Kugelhaube die naturgemäß bei starkem Druck eintretende ausgeprägte Tellerform entsprechend abgemildert aufweisen, so daß die Ablenkung der Flamme gleich über den Haubenrand hinweg zu einem kugelförmigen Zusammenschluß führt. Die Flamme wird beim Auftreffen auf die Kugelhaube zur Entzündung gebracht bei gleichzeitiger Durchmischung und gleichzeitiger kugelförmiger Ausnutzung während ihrer Entstehung. The dust is mixed with air in the known manner. The dust air mixture ίο penetrates through a round nozzle that is roughly with the inner wall of the combustion chamber. The nozzle has a head-like, Extension made of refractory stone that protrudes into the combustion chamber. This Expansion contains openings in the side facing the combustion chamber through which the dust air mixture is forced through. This mixture that has escaped in this way meets a mixture also made of refractory stone Ball hood and is thrown back here in part, whereby an ignition must take place on the ball hood and what causes furthermore a spherically spread flame arises. The inventive idea builds up not on, that any mixture is made in the nozzle, but on the fact that the pressure throttling carried out here favoring the spherical Training the flame should work. This dust air mixture is in its preparatory throttled state at Impact against the spherical cap is the pronounced naturally occurring with strong pressure Have plate shape toned accordingly, so that the deflection of the flame leads directly over the edge of the hood to a spherical union. the Flame is caused to ignite when it hits the spherical hood and at the same time Mixing and simultaneous spherical utilization during their formation.
Ein Ausführungsbeispiel wird durch die Zeichnung veranschaulicht. Abb. 1 stellt einen Längsschnitt durch die Staubfeuerungsdüse einschließlich der im Feuerraum liegenden Haube dar, Abb. 2 einen Querschnitt durch die Düse mit Ansicht auf die Haube.An embodiment is illustrated by the drawing. Fig. 1 represents a longitudinal section through the dust burner nozzle including the hood lying in the furnace, Fig. 2 shows a cross section through the nozzle with a view of the hood.
Die Verbrennungskammer der Staubfeuerung ist mit α bezeichnet, das Blasrohr mit der ausgebauten feuerfesten Düse mit b;c sind die Öffnungen, in welchen die vorbereitende Abdrosselung des Staubluftgemisches bewirkt wird, und e ist die Kugelhaube.The combustion chamber of the dust-fired furnace is designated with α , the blowpipe with the removed refractory nozzle with b; c are the openings in which the preparatory throttling of the dust-air mixture is effected, and e is the spherical hood.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW64786D DE428952C (en) | 1923-10-16 | 1923-10-16 | Pulverized fuel combustion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW64786D DE428952C (en) | 1923-10-16 | 1923-10-16 | Pulverized fuel combustion |
Publications (1)
Publication Number | Publication Date |
---|---|
DE428952C true DE428952C (en) | 1926-05-15 |
Family
ID=7607198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEW64786D Expired DE428952C (en) | 1923-10-16 | 1923-10-16 | Pulverized fuel combustion |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE428952C (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE943607C (en) * | 1952-02-17 | 1956-05-24 | Babcock & Wilcox Dampfkessel W | Cyclone firing |
DE958418C (en) * | 1946-06-25 | 1957-02-21 | Bataafsche Petroleum | Process and burner for increasing the burning rate |
DE960571C (en) * | 1951-11-10 | 1957-03-21 | Emil Alexander | Burner for low calorific value heating gases with low ignition speed |
DE1108840B (en) * | 1955-07-19 | 1961-06-15 | Iaofuiaofenbau Union G M B H | Burner to create a divergent flame |
DE1166406B (en) * | 1959-06-27 | 1964-03-26 | Maschf Augsburg Nuernberg Ag | Coal burner with baffle plate |
WO1980002452A1 (en) * | 1979-05-10 | 1980-11-13 | Toverco Bv | Powdered fuel burner and dryer using said burner |
EP0084584A1 (en) * | 1982-01-27 | 1983-08-03 | AZO-Maschinenfabrik Adolf Zimmermann GmbH | Process and device for the combustion of pulverized coal in an air current with a pulverized-coal burner |
DE3541616A1 (en) * | 1985-11-25 | 1987-05-27 | Krupp Polysius Ag | Burner for pulverulent fuel |
-
1923
- 1923-10-16 DE DEW64786D patent/DE428952C/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE958418C (en) * | 1946-06-25 | 1957-02-21 | Bataafsche Petroleum | Process and burner for increasing the burning rate |
DE960571C (en) * | 1951-11-10 | 1957-03-21 | Emil Alexander | Burner for low calorific value heating gases with low ignition speed |
DE943607C (en) * | 1952-02-17 | 1956-05-24 | Babcock & Wilcox Dampfkessel W | Cyclone firing |
DE1108840B (en) * | 1955-07-19 | 1961-06-15 | Iaofuiaofenbau Union G M B H | Burner to create a divergent flame |
DE1166406B (en) * | 1959-06-27 | 1964-03-26 | Maschf Augsburg Nuernberg Ag | Coal burner with baffle plate |
WO1980002452A1 (en) * | 1979-05-10 | 1980-11-13 | Toverco Bv | Powdered fuel burner and dryer using said burner |
EP0019962A1 (en) * | 1979-05-10 | 1980-12-10 | Technisch Advies-en Handelsbureau Toverco B.V. | Method and burner for burning powdered fuel, and apparatus and method for drying moist material using such a burner |
EP0084584A1 (en) * | 1982-01-27 | 1983-08-03 | AZO-Maschinenfabrik Adolf Zimmermann GmbH | Process and device for the combustion of pulverized coal in an air current with a pulverized-coal burner |
DE3541616A1 (en) * | 1985-11-25 | 1987-05-27 | Krupp Polysius Ag | Burner for pulverulent fuel |
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