PL364549A1 - The method and the system designed for introduction of hot exhaust gas from the biomass-fired dutch oven into pulverized-fuel boiler - Google Patents
The method and the system designed for introduction of hot exhaust gas from the biomass-fired dutch oven into pulverized-fuel boilerInfo
- Publication number
- PL364549A1 PL364549A1 PL04364549A PL36454904A PL364549A1 PL 364549 A1 PL364549 A1 PL 364549A1 PL 04364549 A PL04364549 A PL 04364549A PL 36454904 A PL36454904 A PL 36454904A PL 364549 A1 PL364549 A1 PL 364549A1
- Authority
- PL
- Poland
- Prior art keywords
- boiler
- pulverized
- combustion
- biomass
- emission
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 12
- 239000007789 gas Substances 0.000 abstract 6
- 239000002028 Biomass Substances 0.000 abstract 4
- 239000002893 slag Substances 0.000 abstract 4
- 239000000428 dust Substances 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 239000003546 flue gas Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
Landscapes
- Combustion Of Fluid Fuel (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
Sposób wprowadzania gorących spalin z przedpaleniska spalającego biomasę do kotła pyłowego z niskoemisyjnym układem spalania polega na tym, że powstające w wyniku spalania biomasy, w przedpalenisku (4) na ruszcie schodkowym (6) z rusztem dopalającym (9),gorące spaliny są kierowane poprzez przewody (7) do umieszczonych w górnej strefie leja żużlowego pod lejem żużlowym albo w strefie nadpalnikowej kotła pyłowego (1) dysz spalin (8) z prędkością wlotu do kotła pyłowego (1) 12÷25m/s i ukośnie pod katem 15°÷30° do wszystkich ścian kotła, wywołując zawirowania spalin pod jego niskoemisyjnymi palnikami (2). W przypadku kotłów z wirowymi palnikami niskoemisyjnymi (2), zabudowanymi na ścianie przedniej, spaliny ze spalonej biomasy kierowane są wprost na ścianę tylną kotła, przy czym powietrze do spalania biomasy w przedpalenisku (4) jest pobierane z otoczenia kotła pyłowego (1) i tłoczone pod i nad ruszt schodkowy (6) za pomocą oddzielnego wentylatora (18), natomiast podciśnienie niezbędne do pracy przedpaleniska (4) wytwarzane jest w komorze paleniskowej współpracującego kotła pyłowego (1) lub wspomagane strumienicą (14). Instalacja wprowadzania gorących spalin z przedpaleniska spalającego biomasę do kotła pyłowego z niskoemisyjnym układem spalania, zawiera kocioł pyłowy (1) ze strumieniowymi lub wirowymi, niskoemisyjnymi palnikami (2) i dyszami powietrza dopalającymi OFA (3) oraz przedpalenisko (4) do spalania biomasy z rusztem schodkowym (6), dopalającym (9) i przewodami spalin (7). Ponadto ma 3÷6 dysz spalin (8), które w kotle pyłowym (1) usytuowane są w strefie górnej leja żużlowego pod lejem żużlowym albo w strefie nadpalnikowej komory paleniskowej i rozmieszczone są ukośnie w stosunku do ścian kotła, pod kątem od 15°÷30° w płaszczyźnie pionowej i poziomej.The method of introducing hot exhaust gases from a biomass-burning pre-combustion furnace into a pulverized-fuel boiler with a low-emission combustion system is that the hot exhaust gases generated as a result of biomass combustion are directed through pipes in the pre-combustion chamber (4) on a stepped grate (6) with an after-combustion grate (9). (7) to the exhaust gas nozzles (8) located in the upper zone of the slag hopper under the slag hopper or in the overburner zone of the dust boiler (1) with an inlet velocity to the dust boiler (1) of 12÷25m/s and obliquely at an angle of 15°÷30° to all walls of the boiler, causing flue gas swirls under its low-emission burners (2). In the case of boilers with low-emission centrifugal burners (2) installed on the front wall, exhaust gases from the burned biomass are directed directly to the rear wall of the boiler, and the air for combustion of biomass in the pre-furnace (4) is taken from the surroundings of the pulverized boiler (1) and pumped under and above the stepped grate (6) using a separate fan (18), while the negative pressure necessary for the operation of the pre-furnace (4) is generated in the combustion chamber of the cooperating pulverized pulverized boiler (1) or supported by a jet (14). Installation for introducing hot exhaust gases from a biomass-burning pre-furnace to a pulverized pulverized boiler with a low-emission combustion system, including a pulverized pulverized boiler (1) with jet or swirl, low-emission burners (2) and OFA afterburning air nozzles (3) and a pre-combustion combustion chamber (4) for biomass combustion with a grate stepped (6), afterburner (9) and exhaust pipes (7). In addition, it has 3÷6 exhaust gas nozzles (8), which in the coal-fired boiler (1) are located in the upper zone of the slag hopper under the slag hopper or in the zone above the burner of the combustion chamber and are arranged obliquely in relation to the boiler walls, at an angle of 15°÷ 30° in the vertical and horizontal planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL364549A PL203792B1 (en) | 2004-01-23 | 2004-01-23 | The method and the system designed for introduction of hot exhaust gas from the biomass-fired Dutch oven into pulverized-fuel boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL364549A PL203792B1 (en) | 2004-01-23 | 2004-01-23 | The method and the system designed for introduction of hot exhaust gas from the biomass-fired Dutch oven into pulverized-fuel boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL364549A1 true PL364549A1 (en) | 2005-07-25 |
| PL203792B1 PL203792B1 (en) | 2009-11-30 |
Family
ID=35784524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL364549A PL203792B1 (en) | 2004-01-23 | 2004-01-23 | The method and the system designed for introduction of hot exhaust gas from the biomass-fired Dutch oven into pulverized-fuel boiler |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL203792B1 (en) |
-
2004
- 2004-01-23 PL PL364549A patent/PL203792B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL203792B1 (en) | 2009-11-30 |
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