CN205372526U - Biomass combustion furnace flue gas circulation system - Google Patents
Biomass combustion furnace flue gas circulation system Download PDFInfo
- Publication number
- CN205372526U CN205372526U CN201620041741.9U CN201620041741U CN205372526U CN 205372526 U CN205372526 U CN 205372526U CN 201620041741 U CN201620041741 U CN 201620041741U CN 205372526 U CN205372526 U CN 205372526U
- Authority
- CN
- China
- Prior art keywords
- pyrolysis chamber
- blower fan
- bye
- pass
- air outlet
- 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.)
- Active
Links
Abstract
The utility model belongs to the technical field of biomass fuel and specifically relates to a biomass combustion furnace flue gas circulation system, including the pyrolysis chamber, the gas outlet of pyrolysis chamber and the entry of combustor link up, and the export and the boiler of combustor link up, and the pyrolysis chamber communicates with the air outlet of first fan, the suction opening and the atmosphere intercommunication of first fan, the gas exhaust port and the suction opening of second fan of boiler are connected, the air outlet and the pyrolysis chamber intercommunication of second fan. The combustor lets in flue gas in the boiler and implements the heating to the boiler, and the lower and tail gas that oxygen content is extremely low of temperature that the boiler produced is connected with the second fan, and the air outlet of second fan lets in the pyrolysis chamber with tail gas, utilizes first fan to mix higher air and the lower tail gas of oxygen content of oxygen content, and then the control of realization to the oxygen content in the pyrolysis chamber for biomass fuel on the pyrolysis chamber is in the state of oxygen debt burning.
Description
Technical field
This utility model relates to biomass fuel field, especially a kind of biomass combustion furnace smoke circulating system.
Background technology
Biomass fuel includes the fuel of the organic substance such as vegetable material and animal waste.Owing to the caloric value of biomass fuel is big, purity is high, do not corrode boiler, the advantage such as thorough of burning is widely used.nullBiomass fuel burns in the process delivered actual as excellent recyclable fuel，Typically via the fire grate at place, pyrolysis chamber carries out preliminary pyrolysis，The imflammable gas that pyrolysis produces enters in burner and burns，Wherein the temperature in pyrolysis chamber makes biomass fuel be in preliminary fired state，Due to the temperature in pyrolysis chamber and oxygen content，Biomass fuel is in the state of oxygen debt burning，The gas produced after oxygen debt burning enters in burner，Extreme temperatures in burner，It is typically in 900-1100 DEG C，Enter and fully burn under the fuel high-temperature effect of burner，Burner is connected with boiler，The steam that burner combustion produces implements the heating to boiler，The exhaust end of boiler is connected with the inlet end of energy-saving appliance，By energy-saving appliance to discharge flue-gas temperature adjustment，And by exhaust emissions to air，Discharge all reduces to exhaust temperature and the oxygen content of air.In prior art, for reaching pyrolysis indoor temperature, the control of oxygen content and the control of burner temperature, blow in pyrolysis chamber and burner typically via blower fan, thus realizing pyrolysis chamber's temperature, the control of oxygen content and the control of burner temperature, but although air themperature that above-mentioned blower fan is introduced from air is relatively low, but oxygen content is too high, the content of oxygen cannot realize the control of the burning oxygen content to the biomass fuel in pyrolysis chamber, when oxygen content is too high, in pyrolysis chamber, the biomass fuel above the fire grate at place cannot realize oxygen debt burning, biomass fuel just obtains a degree of burning in pyrolysis chamber, combustion heat value after biomass fuel entrance burner significantly reduces.
Utility model content
The purpose of this utility model is just to provide a kind of convenience and controls the biomass combustion furnace smoke circulating system of oxygen content in pyrolysis chamber, it is ensured that the biomass fuel in pyrolysis chamber is in the state of oxygen debt burning.
To achieve these goals, the technical solution adopted in the utility model is: a kind of biomass combustion furnace smoke circulating system, including pyrolysis chamber, the gas outlet of pyrolysis chamber is connected with the entrance of burner, the outlet of burner is connected with boiler, and pyrolysis chamber connects with the air outlet of the first blower fan, the suction opeing of the first blower fan and atmosphere, the exhaust port of described boiler and the suction opeing of the second blower fan connect, and the air outlet of the second blower fan connects with pyrolysis chamber.
What compared with prior art this utility model possessed has the technical effect that the high-temperature flue gas that burner passes in boiler implements the heating to boiler, the tail gas that temperature is relatively low and oxygen content is extremely low and the second blower fan that boiler produces connect, tail gas is passed into pyrolysis chamber by the air outlet of the second blower fan, the first blower fan is utilized to be mixed by tail gas relatively low to air higher for oxygen content and oxygen content, and then realizing the control to the oxygen content in pyrolysis chamber so that the biomass fuel in pyrolysis chamber is in the state of oxygen debt burning.
Accompanying drawing explanation
Fig. 1 is the structural representation of biomass combustion furnace smoke circulating system；
Detailed description of the invention
In conjunction with Fig. 1, this utility model is done explanation further:
A kind of biomass combustion furnace smoke circulating system, including pyrolysis chamber 10, the outlet of pyrolysis chamber 10 is connected with the entrance of burner 20, the outlet of burner 20 is connected with boiler 30, pyrolysis chamber 10 connects with the air outlet of the first blower fan 40, the suction opeing of the first blower fan 40 and atmosphere, the exhaust port of described boiler 30 and the suction opeing of the second blower fan 50 connect, and the air outlet of the second blower fan 50 connects with pyrolysis chamber 10.
Abandon the drawback utilizing blower fan extraction air to carry out Oxygen control to pyrolysis chamber 10 in prior art, temperature that boiler 30 produces and the relatively low tail gas of oxygen content is utilized to mix with air, and then realize the control to the oxygen content in pyrolysis chamber 10, the biomass fuel in pyrolysis chamber 10 is made to be in primary combustion, and it is in the state of oxygen debt burning, and then guarantees that the calorific value entering the biomass fuel in burner 20 is in higher level.
As preferred version of the present utility model, the air outlet of described first blower fan 40 connects with burner 20, and the air outlet of the second blower fan 50 connects with burner 20.The air that the tail gas of the second blower fan 50 and the first blower fan 40 pass into is utilized to implement the control of the temperature to burner 20 and oxygen content, relatively low temperature and relatively low oxygen content, the growing amount of nitrogen oxides in burner 20 and then the discharge of less dusty gas can be significantly reduced.
Described first blower fan 40 air outlet and the first main pipe rail 41 connect, pyrolysis chamber 10 is provided with multiple first air inlet, the first air inlet being provided with multiple first bye-pass 411 and pyrolysis chamber 10 on first main pipe rail 41 is respectively communicated with, first bye-pass 411 is respectively arranged with the first control valve 42, first air inlet of pyrolysis chamber 10 is spaced apart along the length direction of pyrolysis chamber 10, first main pipe rail 41 is additionally provided with the second bye-pass 412, second bye-pass 412 connects with burner 20, and the second bye-pass 412 is provided with the second control valve 43.
Air outlet and second main pipe rail 51 of described second blower fan 50 connect, pyrolysis chamber 10 is provided with multiple second air inlet, the second air inlet being provided with multiple second bye-pass 511 and pyrolysis chamber 10 on second main pipe rail 51 is respectively communicated with, 3rd bye-pass 511 is respectively arranged with the 3rd control valve 52, second air inlet of pyrolysis chamber 10 is along the length direction of pyrolysis chamber 10 and is distributed with the first air inlet interleaved, second main pipe rail 51 is additionally provided with the 4th bye-pass 512, 4th bye-pass 512 connects with burner 20, 4th bye-pass 512 is provided with the 4th control valve 53.
The described suction opeing of the first blower fan 40 connects with the air outlet of warm-air drier 60.Warm-air drier 60 is utilized to realize preheating air, it is prevented that the exhaust temperature of the second blower fan 50 air outlet is relatively low.
The exhaust port of described boiler 30 connects with the air inlet of energy-saving appliance 70, and the air outlet of energy-saving appliance 70 and the suction opeing of the second blower fan 50 connect.
Claims (6)
1. a biomass combustion furnace smoke circulating system, it is characterized in that: include pyrolysis chamber (10), the outlet of the gas of pyrolysis chamber (10) is connected with the entrance of burner (20), the outlet of burner (20) is connected with boiler (30), pyrolysis chamber (10) connects with the air outlet of the first blower fan (40), the suction opeing of the first blower fan (40) and atmosphere, the exhaust port of described boiler (30) and the suction opeing of the second blower fan (50) connect, and the air outlet of the second blower fan (50) connects with pyrolysis chamber (10).
2. biomass combustion furnace smoke circulating system according to claim 1, it is characterized in that: the air outlet of described first blower fan (40) connects with burner (20), and the air outlet of the second blower fan (50) connects with burner (20).
3. biomass combustion furnace smoke circulating system according to claim 2, it is characterized in that: described first blower fan (40) air outlet and the first main pipe rail (41) connect, pyrolysis chamber (10) is provided with multiple first air inlet, the first air inlet being provided with multiple first bye-pass (411) and pyrolysis chamber (10) on first main pipe rail (41) is respectively communicated with, first bye-pass (411) is respectively arranged with the first control valve (42), first air inlet of pyrolysis chamber (10) is spaced apart along the length direction of pyrolysis chamber (10), first main pipe rail (41) is additionally provided with the second bye-pass (412), second bye-pass (412) connects with burner (20), second bye-pass (412) is provided with the second control valve (43).
null4. biomass combustion furnace smoke circulating system according to claim 3，It is characterized in that: the air outlet of described second blower fan (50) and the second main pipe rail (51) connect，Pyrolysis chamber (10) is provided with multiple second air inlet，The second air inlet being provided with multiple second bye-pass (511) and pyrolysis chamber (10) on second main pipe rail (51) is respectively communicated with，3rd bye-pass (511) is respectively arranged with the 3rd control valve (52)，Second air inlet of pyrolysis chamber (10) is along the length direction of pyrolysis chamber (10) and is distributed with the first air inlet interleaved，Second main pipe rail (51) is additionally provided with the 4th bye-pass (512)，4th bye-pass (512) connects with burner (20)，4th bye-pass (512) is provided with the 4th control valve (53).
5. biomass combustion furnace smoke circulating system according to claim 3, it is characterised in that: the suction opeing of described first blower fan (40) connects with the air outlet of warm-air drier (60).
6. biomass combustion furnace smoke circulating system according to claim 4, it is characterized in that: the exhaust port of described boiler (30) connects with the air inlet of energy-saving appliance (70), the air outlet of energy-saving appliance (70) and the suction opeing of the second blower fan (50) connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620041741.9U CN205372526U (en) | 2016-01-15 | 2016-01-15 | Biomass combustion furnace flue gas circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620041741.9U CN205372526U (en) | 2016-01-15 | 2016-01-15 | Biomass combustion furnace flue gas circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205372526U true CN205372526U (en) | 2016-07-06 |
Family
ID=56278726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620041741.9U Active CN205372526U (en) | 2016-01-15 | 2016-01-15 | Biomass combustion furnace flue gas circulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205372526U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108467736A (en) * | 2018-04-26 | 2018-08-31 | 中曼（苏州）能源科技有限公司 | A kind of horizontal moving bed biomass pyrogenation gasification equipment of multistage subsection formula |
| CN111704373A (en) * | 2020-05-19 | 2020-09-25 | 新兴铸管股份有限公司 | Method for reducing concentration of NOx in tail gas of lime rotary kiln |
-
2016
- 2016-01-15 CN CN201620041741.9U patent/CN205372526U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108467736A (en) * | 2018-04-26 | 2018-08-31 | 中曼（苏州）能源科技有限公司 | A kind of horizontal moving bed biomass pyrogenation gasification equipment of multistage subsection formula |
| CN111704373A (en) * | 2020-05-19 | 2020-09-25 | 新兴铸管股份有限公司 | Method for reducing concentration of NOx in tail gas of lime rotary kiln |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106594713B (en) | A kind of biomass cascade conversion burner of Anti-slagging | |
| CN105841143A (en) | System and method for reducing NOx emissions through smoke recycling | |
| CN102563687B (en) | Oxygen-enriched combustion system | |
| CN205372526U (en) | Biomass combustion furnace flue gas circulation system | |
| CN102588997B (en) | Oxygen enriched combustion system | |
| CN208735618U (en) | A kind of novel segmentation low nitrogen combustion apparatus | |
| CN2896027Y (en) | Strong hot-air double-hearth high-temperature boilling furnace | |
| CN205640882U (en) | System for gas recirculation reduces NOx and discharges | |
| CN105928198A (en) | Combustion-velocity-controllable coal storage-gasification hot blast stove dedicated to greenhouse | |
| CN205579544U (en) | Discharge pulverized coal combustion system a little | |
| CN105841164A (en) | Garbage incinerator for extracting headspace hot flue gases at burned-out zone and introducing into drying zone | |
| CN205664387U (en) | Hot flue gas of extraction after -flame section head space lets in waste incinerator of dry section | |
| CN208418705U (en) | A kind of pyrolysis installation | |
| CN209558325U (en) | A kind of heating furnace flue gas recirculation burner | |
| CN204063564U (en) | The special burning velocity in greenhouse controlled coal storage vaporization integrated hot-blast stove | |
| CN209801947U (en) | Direct combustion type wood drying kiln | |
| CN205919310U (en) | Boiler wind channel | |
| CN204478029U (en) | A kind of low nitrogen burning for fire coal boiler reflux | |
| CN206112909U (en) | Metal surface combustion system | |
| CN101799208B (en) | Carbon-hydrogen organic substance fuel baking device | |
| CN106090892A (en) | A kind of intelligent circulation combustion method of coal-burning boiler | |
| CN106122948A (en) | A kind of circulating combustion method of coal-burning boiler | |
| CN217154224U (en) | Direct-blowing pulverizing system with primary cooling fan and flue gas fan | |
| CN208308914U (en) | A kind of open-fire heating furnace for steel wire heat treatment | |
| CN209782602U (en) | Built-in flue gas recirculation horizontal boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |