EP0484302A2 - Automatisch arbeitender Brenner für Kohlenstaub oder für irgendeinen anderen festen Brennstoff - Google Patents
Automatisch arbeitender Brenner für Kohlenstaub oder für irgendeinen anderen festen Brennstoff Download PDFInfo
- Publication number
- EP0484302A2 EP0484302A2 EP19910830476 EP91830476A EP0484302A2 EP 0484302 A2 EP0484302 A2 EP 0484302A2 EP 19910830476 EP19910830476 EP 19910830476 EP 91830476 A EP91830476 A EP 91830476A EP 0484302 A2 EP0484302 A2 EP 0484302A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- air
- dust
- coal dust
- holes
- 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
Links
- 239000002817 coal dust Substances 0.000 title claims abstract description 23
- 239000004449 solid propellant Substances 0.000 title claims abstract description 7
- 238000002485 combustion reaction Methods 0.000 claims abstract description 32
- 238000010304 firing Methods 0.000 claims abstract description 18
- 239000000446 fuel Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000000428 dust Substances 0.000 claims description 30
- 230000033228 biological regulation Effects 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 7
- 238000007664 blowing Methods 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 239000003473 refuse derived fuel Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001033 granulometry Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
- F23D17/005—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel gaseous or pulverulent fuel
-
- 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 present invention relates to a burner designed in particular to be supplied with coal dust, solid fuels from urban solid refuses, industrial waste, also referred to RDF (Refuse Derived Fuel), or any other solid fuel which can be turned into dust.
- RDF Refuse Derived Fuel
- the burner is of the self-contained enbloc type and can operate automatically.
- Such auxiliary flame which also starts the combustion is produced by a burner of premixed gas which is integral with the combustion head of the burner so that the device thus formed is a self-contained, automatically operating, enbloc burner.
- the invention provides a metering device 1 and a burner supplied by such metering device and formed of four coaxial bodies, namely cylindrical body 2 in which the dust is conveyed along with the carrier air, body 3 conveying the swirling air as better described afterwards, body 4 for the air-gas mixture feeding the auxiliary flame to fire the dust, and the outer sleeve 7 in which the combustion air is conveyed.
- a fitting 5 provided with flange 6 for the connection of the whole device to the furnace (not shown), as well as a nozzle ejecting the flame 8.
- the metering device (Fig. 3) includes a hopper 9 receiving the powdery fuel with the desired granulometry. At the base of the hopper a pair of rotors 10 turn in the direction indicated by the arrows. Such rotors carry radial vanes 11 which form compartments or pockets having an essentially constant volume together with the seats formed in the stationary casing 12.
- Radial vanes 11 are offset so that the dust from the hopper is mixed and supplied to the feeding chamber 13 under rotors 10.
- a disc 14 rotating within hopper 9 is provided with tangential studs 15 and radial studs 16 having the function of avoiding dust cloggings. All of such rotating members are driven by gearmotor 17 through gears 18 and 19. It is evident that the flow rate of the dust can continuously be varied from zero to the predetermined maximum value by varying the speed of rotors 10.
- Pipe 20 ends at the front side in a Venturi tube nozzle 21 carrying a ring of holes 22 converging to the axis of pipe 20 and misaligned sideways so as to cause air flowing from inlet 23 through the annular room 24 about pipe 20 defined by sleeve 25 to swirl.
- Another annular room 26 is provided coaxially to the axis of the ejecting pipe 20, in which room an air-gas mixture flows from inlet 27.
- Such room 26 ends at the front side in a ring of nozzles 28 angularly spaced and intended to eject a plurality of flames surrounding the outlet of nozzle 21.
- a further annular room 29 defined by sleeves 3 and 4 conveyes the combustion air from inlet 30 which is generated by a known electric fan not shown.
- the annular room 29 of the combustion air ends at the front side in a frusto-conical "horn" fitting 31 carrying a double ring of holes 32 converging to the axis of pipe 20 and misaligned so as to cause the combustion air to swirl in the opposite direction of rotation of the dust ejected by nozzle 21.
- the dust swirls out of nozzle 21 and is fired by the surrounding ring of auxiliary flames ejected by nozzles 28. Once the predetermined conditions of the thermal rate are reached, the auxiliary flames can be blown out (by shutting off only the gas) so that the combustion is supported only by the dust.
- the operation of the dust burner is completely automatic, including firing which is provided by a little blowing air burner (drive burner) having a low thermal value, for example 7000 kcal/h.
- the drive burner is automatic and provided with electric firing means and flame control means.
- the combustion air to be supplied to the drive burner is fed by the electric fan also supplying the auxiliary burner associated to the dust burner with the combustion air.
- the firing steps are as follows:
- the drive burner operates as long as the dust burner is under operating conditions and even as the latter is blown out due to the reaching of the maximum temperature.
- the auxiliary pre-firing gas burner formed of the nozzle ring 28 is fired.
- the latter burner has a prefixed thermal value of 30.000 to 60.000 kcal/h.
- the combustion chamber can reach the requested minimum temperature; once the desired temperature is reached, the combustion air, the swirling air, the dust atomizing carrier air, and the dust at the minimum flow rate arm let in. After the dust is fired with the aid of the auxiliary flame, the flow rate of the fuel is automatically adjusted to the desired value.
- the gas of the auxiliary burner is shut off and the combustion is supported only by the dust fuel, as previously mentioned.
- the blowing out of the auxiliary burner is provided only if a good combustion can be self-sustained by means of the fuel being used; in case of a poor, hardly burning fuel, the auxiliary burner is kept fired. In any case the drive burner is kept in operation.
- the thermal value of the burner is settled to the actual requirement of the user; if also the minimum flow rate is overflowing, the whole burner is blown out except for the drive burner. The whole burner assembly will be fired again when believed it necessary by the control means.
- the re-firing steps are the same as those already described.
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT48438A IT1241557B (it) | 1990-11-02 | 1990-11-02 | Bruciatore di polverino di carbone o altri combustibili solidi in genere, a funzionamento automatico. |
IT4843890 | 1990-11-02 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0484302A2 true EP0484302A2 (de) | 1992-05-06 |
EP0484302A3 EP0484302A3 (en) | 1992-10-21 |
EP0484302B1 EP0484302B1 (de) | 1996-04-24 |
Family
ID=11266547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91830476A Expired - Lifetime EP0484302B1 (de) | 1990-11-02 | 1991-10-31 | Automatisch arbeitender Brenner für Kohlenstaub oder für irgendeinen anderen festen Brennstoff |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0484302B1 (de) |
DE (1) | DE69119030D1 (de) |
IT (1) | IT1241557B (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002076580A2 (es) * | 2001-03-23 | 2002-10-03 | Ip Tecnologia Vidriera, Ltd. | Metodo y sistema para alimentar y quemar un combustible pulverizado en un horno de fundicion de vidrio y, quemador para uso con el mismo |
WO2005094153A1 (de) * | 2004-04-01 | 2005-10-13 | Patco Engineering Gmbh | Einrichtung und verfahren zum oxidieren, reduzieren, kalzinieren, sintern oder schmelzen von stäuben unter verwendung eines dosierzyklons mit brennstofflanze |
AT514131A1 (de) * | 2013-04-11 | 2014-10-15 | A Tec Holding Gmbh | Verfahren zum Verbrennen von fossilen Brennstoffen und Ersatzbrennstoffen und Brenner zum Ausführen des Verfahrens |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111559007B (zh) * | 2020-05-18 | 2022-02-11 | 许昌德通振动搅拌科技股份有限公司 | 一种制砖生产线及其加水方法 |
CN114992626B (zh) * | 2022-04-26 | 2024-05-24 | 浙江伊诺环保集团股份有限公司 | 一种用于飞灰捕捉回收的二次喷吹燃烧装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3206074A1 (de) * | 1982-02-17 | 1983-08-18 | Körting Hannover AG, 3000 Hannover | Brenner fuer staubfoermige, gasfoermige und/oder fluessige brennstoffe |
US4408548A (en) * | 1979-04-17 | 1983-10-11 | Jorg Schmalfeld | Pulverized coal combustion method and apparatus |
DE3530683A1 (de) * | 1985-08-28 | 1987-03-12 | Pillard Feuerungen Gmbh | Verfahren zur herabsetzung der no(pfeil abwaerts)x(pfeil abwaerts)-emissionen von drehrohroefen und brenner zur durchfuehrung dieses verfahrens |
US4688496A (en) * | 1985-07-26 | 1987-08-25 | Enatech Corporation | Pulverized coal burner |
-
1990
- 1990-11-02 IT IT48438A patent/IT1241557B/it active IP Right Grant
-
1991
- 1991-10-31 EP EP91830476A patent/EP0484302B1/de not_active Expired - Lifetime
- 1991-10-31 DE DE69119030T patent/DE69119030D1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4408548A (en) * | 1979-04-17 | 1983-10-11 | Jorg Schmalfeld | Pulverized coal combustion method and apparatus |
DE3206074A1 (de) * | 1982-02-17 | 1983-08-18 | Körting Hannover AG, 3000 Hannover | Brenner fuer staubfoermige, gasfoermige und/oder fluessige brennstoffe |
US4688496A (en) * | 1985-07-26 | 1987-08-25 | Enatech Corporation | Pulverized coal burner |
DE3530683A1 (de) * | 1985-08-28 | 1987-03-12 | Pillard Feuerungen Gmbh | Verfahren zur herabsetzung der no(pfeil abwaerts)x(pfeil abwaerts)-emissionen von drehrohroefen und brenner zur durchfuehrung dieses verfahrens |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002076580A2 (es) * | 2001-03-23 | 2002-10-03 | Ip Tecnologia Vidriera, Ltd. | Metodo y sistema para alimentar y quemar un combustible pulverizado en un horno de fundicion de vidrio y, quemador para uso con el mismo |
WO2002076580A3 (es) * | 2001-03-23 | 2002-12-12 | Ip Tecnologia Vidriera Ltd | Metodo y sistema para alimentar y quemar un combustible pulverizado en un horno de fundicion de vidrio y, quemador para uso con el mismo |
KR100887306B1 (ko) * | 2001-03-23 | 2009-03-06 | 비트로 글로발, 에스. 에이. | 유리 용융로용 미분 연료 연소 버너 |
KR100910353B1 (ko) * | 2001-03-23 | 2009-08-04 | 비트로 글로발, 에스. 에이. | 유리 용융로에서 유리를 제조하기 위한 방법 및 시스템 |
WO2005094153A1 (de) * | 2004-04-01 | 2005-10-13 | Patco Engineering Gmbh | Einrichtung und verfahren zum oxidieren, reduzieren, kalzinieren, sintern oder schmelzen von stäuben unter verwendung eines dosierzyklons mit brennstofflanze |
US7678167B2 (en) | 2004-04-01 | 2010-03-16 | Patco Engineering Gmbh | Device and method for oxidizing, reducing, calcining, sintering, or melting dusts |
AT514131A1 (de) * | 2013-04-11 | 2014-10-15 | A Tec Holding Gmbh | Verfahren zum Verbrennen von fossilen Brennstoffen und Ersatzbrennstoffen und Brenner zum Ausführen des Verfahrens |
AT514131B1 (de) * | 2013-04-11 | 2015-11-15 | A Tec Holding Gmbh | Verfahren zum Verbrennen von fossilen Brennstoffen und Ersatzbrennstoffen und Brenner zum Ausführen des Verfahrens |
Also Published As
Publication number | Publication date |
---|---|
IT9048438A1 (it) | 1992-05-02 |
IT1241557B (it) | 1994-01-17 |
IT9048438A0 (it) | 1990-11-02 |
DE69119030D1 (de) | 1996-05-30 |
EP0484302B1 (de) | 1996-04-24 |
EP0484302A3 (en) | 1992-10-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4389979A (en) | Method and apparatus for the operation of a boiler installation with stoker firing | |
EP1924762B1 (de) | Turbomotorverbrennungssysteme | |
CA2519981C (en) | Apparatus for burning pulverized solid fuels with oxygen | |
US4726192A (en) | Dual fuel injectors | |
CN101644431B (zh) | 具有自稳能力的三级配风低NOx煤粉燃烧器 | |
JPH018803Y2 (de) | ||
KR940006903B1 (ko) | 고체연료용 점화 연소 유지 버너 | |
US4640674A (en) | Pulse combustion apparatus | |
PL200778B1 (pl) | Układ i sposób do spalania granulowanego, stałego paliwa | |
GB2108650A (en) | Pulverized coal and liquid fuel dual-purpose burner | |
NO145998B (no) | Blaabrennende oljebrenner. | |
CA2035047A1 (en) | Burner for solid and liquid or gaseous fuel | |
EP0484302B1 (de) | Automatisch arbeitender Brenner für Kohlenstaub oder für irgendeinen anderen festen Brennstoff | |
US4397295A (en) | Burner for burning pulverized fuel | |
US6220852B1 (en) | Variable exit high velocity burner | |
US6145450A (en) | Burner assembly with air stabilizer vane | |
US20090068601A1 (en) | Burner Pilot With Virtual Spinner | |
RU2372555C2 (ru) | Горелка на древесном гранулированном топливе | |
CA2020972A1 (en) | Nozzle mix, open power burner | |
GB2085575A (en) | Multi-fuel Burner | |
CN101315188A (zh) | 冶金气体燃烧器 | |
US5322026A (en) | Waste combustion chamber with tertiary burning zone | |
CN2296451Y (zh) | 混合式煤粉燃烧器 | |
GB2098721A (en) | A method of igniting a pulverised fuel main burner and a burner arrangement for carrying out the method | |
EP0118455B1 (de) | Feuerungsvorrichtung für pulverfestbrennstoffe |
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 |
Kind code of ref document: A2 Designated state(s): BE DE ES FR GB NL |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): BE DE ES FR GB NL |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: PARTESOTTI CORRADO Inventor name: FLORIS FRANCESCO |
|
17P | Request for examination filed |
Effective date: 19930419 |
|
17Q | First examination report despatched |
Effective date: 19940627 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE DE ES FR GB NL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19960424 Ref country code: FR Effective date: 19960424 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19960424 Ref country code: BE Effective date: 19960424 |
|
REF | Corresponds to: |
Ref document number: 69119030 Country of ref document: DE Date of ref document: 19960530 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19960725 |
|
EN | Fr: translation not filed | ||
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19961031 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19961031 |