CN207019090U - A kind of processing system of biomass combustion tail gas - Google Patents
A kind of processing system of biomass combustion tail gas Download PDFInfo
- Publication number
- CN207019090U CN207019090U CN201720862449.8U CN201720862449U CN207019090U CN 207019090 U CN207019090 U CN 207019090U CN 201720862449 U CN201720862449 U CN 201720862449U CN 207019090 U CN207019090 U CN 207019090U
- Authority
- CN
- China
- Prior art keywords
- biomass combustion
- tail gas
- biomass
- processing system
- flow controller
- 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 provides a kind of processing system of biomass combustion tail gas, the processing system includes biomass combustion device and the SCR device that is connected with biomass combustion device, in addition to electronic control unit and the lambda sensor, NOx nitrogen oxide sensors, first flow controller and the second flow controller that are respectively connected with the electronic control unit.The processing system and technique of the biomass combustion tail gas can ensure that the biomass in biomass combustion device is burnt in stoichiometric point, and can in adjust automatically tail gas NOx content so that volatile organic constituents gas significantly reduces in the nitrogen oxide in tail gas and biomass of the discharge of biomass combustion device.
Description
Technical field
The utility model belongs to pollutant process technical field, is related to a kind of processing system of biomass combustion tail gas.
Background technology
The conventional dust removal technology of existing biomass boiler can not meet increasingly strict exhaust emission standard, dedusting
Device can not reduce caused nitrogen oxides in combustion process, CO and imperfect combustion fuel.Existing selective non-catalytic
Reduction (SNCR) and SCR (SCR) denitration technology can effectively reduce the discharge of nitrogen oxides, but for CO
With volatile organic constituents gas in biomass, SNCR and SCR do not have effect to be removed it.When the flow of air is less than life
Material stoichiometric point burning needed for air mass flow when, i.e., under rich condition, although now NOx generation reduce, CO and
Ratio of the volatile component gas in tail gas significantly rises in biomass, and the combustion utilization efficiency of fuel is low.In the condition of lean combustion
Under, the flow of excessive increase air, although fuel fully burns, CO and volatile component generation reduce, nitrogen oxides
Production substantially increase.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of place of biomass combustion tail gas
Reason system, the processing system of the biomass combustion tail gas can ensure biomass in biomass combustion device in stoichiometry
Point burning, and can in adjust automatically tail gas NOx content so that the nitrogen oxide in tail gas of biomass combustion device discharge
Significantly reduced with volatile organic constituents gas in biomass.
NOx nitrogen oxide sensors refer to the sensor for detecting NOx, and the NOx refers to nitrogen oxides.
To use following technical scheme up to this purpose, the utility model：
One of the purpose of this utility model is to provide a kind of processing system of biomass combustion tail gas, including biomass fuel
Burn device and the SCR device that is connected with biomass combustion device, the exhaust treatment system also including electronic control unit and
Lambda sensor, NOx nitrogen oxide sensors, first flow controller and the second flow control being respectively connected with the electronic control unit
Device processed, the oxygen content and NOx content that the electronic control unit can transmit according to lambda sensor and NOx nitrogen oxide sensors control
The aperture of first flow controller and second flow controller；
The lambda sensor is arranged at the offgas outlet of biomass combustion device, and the NOx nitrogen oxide sensors are arranged at
At the offgas outlet of biomass combustion device and/or at the gas outlet of SCR device, the first flow controller is arranged at biology
The oxidizing gas entrance of matter burner, the second flow controller are arranged at the NH of SCR device3At air inlet.
The first flow controller includes first flow control valve.
The second flow controller includes second flow control valve.
Also set up between the offgas outlet of the lambda sensor and the biomass combustion device for adsorbing combustion tail gas
The adsorbent equipment of middle organic component.
The adsorbent equipment improves the adsorption rate to organic component in combustion tail gas.
Dust arrester is also set up between the offgas outlet of the lambda sensor and the biomass combustion device.
Catalyst layer is set in the SCR device.
The NH of the SCR device3Air inlet and NH3Generation device is connected, the NH3Generation device includes urea solution tank.
The two of the purpose of this utility model are to provide a kind of place of the biomass combustion tail gas using system as described above
Science and engineering skill, the handling process comprise the following steps：
(1) by setting lambda sensor, control biomass and oxidisability gas at the offgas outlet of biomass combustion device
Body burns in stoichiometric point, obtains combustion tail gas；
(2) discharged after the combustion tail gas being carried out into SCR denitration processing, wherein, by controlling NH during SCR denitration3
Flow to control NOx discharge.
SCR denitration processing is carried out again after step (2) the combustion tail gas removing dust and adsorption treatment.
Step (2) at the gas outlet of SCR denitration device by setting NOx nitrogen oxide sensors to control NH3Flow.
Number range described in the utility model not only includes the above-mentioned point value enumerated, in addition to does not include above-mentioned
Arbitrary point value between number range, as space is limited and the consideration for simplicity, described in the utility model no longer exclusive list
The specific point value that scope includes.
Compared with prior art, the beneficial effects of the utility model are：
The processing system of biomass combustion tail gas provided by the utility model can ensure the life in biomass combustion device
Material burns in stoichiometric point, and can in adjust automatically tail gas NOx content, compared to traditional biomass combustion tail
Volatile organic constituents gas can reduce 50- in the processing system of gas, its nitrogen oxide in tail gas discharged and biomass
70%.
Brief description of the drawings
Fig. 1 is the processing system for the biomass combustion tail gas that a kind of embodiment of the utility model provides.
Wherein：1, biomass boiler combustion chamber；2, first flow controller；3, lambda sensor；4, electronic control unit；5,
Second flow controller；6, NOx nitrogen oxide sensors；7, SCR device；8, dust arrester；9, urea solution tank；10, second flow
Meter；11, first flowmeter, 12, pump.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
Embodiment 1
A kind of processing system of biomass combustion tail gas, as shown in figure 1, including biomass combustion device (including biomass
1) and with biomass combustion device SCR device 7 that boiler furnace burning is connected, the exhaust treatment system also include electronics control
Unit 4 processed and the lambda sensor 3 being respectively connected with the electronic control unit 4, NOx nitrogen oxide sensors 6, first flow control
Device 2 and second flow controller 5, what the electronic control unit 4 can transmit according to lambda sensor 3 and NOx nitrogen oxide sensors 6
Oxygen content and the aperture of NOx content control first flow controller 2 and second flow controller 5；
The lambda sensor 3 is arranged at the offgas outlet of biomass combustion device, and the NOx nitrogen oxide sensors 6 are set
At the gas outlet of SCR device 7 (the NOx nitrogen oxide sensors 6 may also be disposed at the offgas outlet of biomass combustion device),
The first flow controller 2 is arranged at the oxidizing gas entrance of biomass combustion device, and the second flow controller 5 is set
It is placed in the NH of SCR device 73At air inlet；Catalyst layer is set in the SCR device 7；
Specifically, the first flow controller 2 includes first flow control valve；
Specifically, the second flow controller 5 includes second flow control valve；
Specifically, dust arrester is also set up between the offgas outlet of the lambda sensor 3 and the biomass combustion device
8, the dust arrester 8 includes sack cleaner；
The NH of the SCR device 73Air inlet and NH3Generation device is connected, the NH3Generation device includes urea solution tank
9；
The air, which enters on the pipeline of biomass combustion device, also sets up first flowmeter 11, NH3Into SCR device
Second flowmeter 10 and pump 12 are also set up on pipeline.
Using the handling process of the biomass combustion tail gas of processing system as described above, comprise the following steps：
(1) by setting lambda sensor 3, control biomass and oxidisability gas at the offgas outlet of biomass combustion device
Body burns in stoichiometric point, and the temperature of burning is to obtain combustion tail gas；
(2) discharged after the combustion tail gas being carried out into SCR denitration processing, wherein, by controlling NH during SCR denitration3
Flow to control NOx discharge, the catalyst that SCR denitration uses is；By being set at the gas outlet of SCR denitration device
NOx nitrogen oxide sensors 6 control NH3Flow.
Specifically, it is using the flow of processing system as described above processing biomass tail gas：
The stoichiometric point measurement burnt to biomass fuel and oxidizing gas, it is pre- in electronic control unit 4
The oxygen content in stoichiometric point, and corresponding combustion tail gas is first set, and sets SCR in electronic control unit 4 in advance
NOx content in emission, and its corresponding NOx and NH3Amount ratio；
Determine the ratio of biomass dyestuff and oxidizing gas by monitoring oxygen content in combustion tail gas, and by itself and electronics
Default stoichiometric point contrast in control unit 4, so as to control the flow of oxidizing gas：When the amount of oxidizing gas is less than
During stoichiometric point, by controlling first flow controller 2 to increase the flow of oxidizing gas, when the amount of oxidizing gas is higher than
During stoichiometric point, by controlling first flow controller 2 to reduce the flow of oxidizing gas；
The biomass tail gas to be burnt according to stoichiometric point is subjected to SCR denitration processing, and passes through NOx nitrogen oxide sensors 6
NOx content after monitoring SCR denitration before processing or denitration process, by the content balance of NOx in its emission with setting, root
NH is adjusted by second flow controller 5 according to its size3Flow.
Application Example
The burning tail of solid life refuse in city is handled using the processing system of the biomass combustion tail gas described in embodiment 1
Gas, wherein, SCR denitration commercially available from the use of embodiment 1, its component and weight/mass percentage composition are：Active component is V2O5
(2.9%), carrier is the TiO of Detitanium-ore-type2(78%), WO3Make cocatalyst (9%), fiber (10%), the fiber includes
SiO2(7.5%), Al2O3(1.5%), CaO (1%), Na2O+K2O (0.1%).
The air inflow of air is adjusted by electronic control unit makes solid life refuse in city be burnt in stoichiometric point, and
Adjust NH3Flow, make SCR device discharge tail gas in NOx content be 4%, its discharge nitrogen oxide in tail gas and biology
Volatile organic constituents gas phase is for being not provided with the processing of electronic control unit, lambda sensor and NOx nitrogen oxide sensors in matter
System can reduce 50-70%.
Applicant states, the foregoing is only specific embodiment of the present utility model, but protection model of the present utility model
Enclose and be not limited thereto, person of ordinary skill in the field is it will be clearly understood that any belong to those skilled in the art and exist
In the technical scope that the utility model discloses, the change or replacement that can readily occur in all fall within the scope of protection of the utility model
Within the scope of disclosure.
Claims (6)
1. a kind of processing system of biomass combustion tail gas, including biomass combustion device and it is connected with biomass combustion device
SCR device, it is characterised in that the exhaust treatment system also includes electronic control unit and divided with the electronic control unit
Not Xiang Lian lambda sensor, NOx nitrogen oxide sensors, first flow controller and second flow controller；
The lambda sensor is arranged at the offgas outlet of biomass combustion device, and the NOx nitrogen oxide sensors are arranged at biology
At the offgas outlet of matter burner and/or at the gas outlet of SCR device, the first flow controller is arranged at biomass fuel
The oxidizing gas entrance of device is burnt, the second flow controller is arranged at the NH of SCR device3At air inlet.
2. the processing system of biomass combustion tail gas according to claim 1, it is characterised in that the first flow control
Device includes first flow control valve.
3. the processing system of biomass combustion tail gas according to claim 1 or 2, it is characterised in that the second flow
Controller includes second flow control valve.
4. the processing system of biomass combustion tail gas according to claim 1 or 2, it is characterised in that the lambda sensor
The adsorbent equipment for adsorbing organic component in combustion tail gas is also set up between the offgas outlet of the biomass combustion device.
5. the processing system of biomass combustion tail gas according to claim 1 or 2, it is characterised in that the lambda sensor
Dust arrester is also set up between the offgas outlet of the biomass combustion device.
6. the processing system of biomass combustion tail gas according to claim 1 or 2, it is characterised in that the SCR device
NH3Air inlet and NH3Generation device is connected, the NH3Generation device includes urea solution tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720862449.8U CN207019090U (en) | 2017-07-17 | 2017-07-17 | A kind of processing system of biomass combustion tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720862449.8U CN207019090U (en) | 2017-07-17 | 2017-07-17 | A kind of processing system of biomass combustion tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207019090U true CN207019090U (en) | 2018-02-16 |
Family
ID=61484663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720862449.8U Active CN207019090U (en) | 2017-07-17 | 2017-07-17 | A kind of processing system of biomass combustion tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207019090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019015572A1 (en) * | 2017-07-17 | 2019-01-24 | 深圳市爱能森科技有限公司 | Biomass combustion exhaust treatment system and process |
-
2017
- 2017-07-17 CN CN201720862449.8U patent/CN207019090U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019015572A1 (en) * | 2017-07-17 | 2019-01-24 | 深圳市爱能森科技有限公司 | Biomass combustion exhaust treatment system and process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103697482B (en) | A kind of organic exhaust gas boiler heating power burning processing system and process technique | |
| CN105080315B (en) | For the flue gas denitrification system of dry-process cement rotary kiln | |
| CN209279172U (en) | A kind of safety-type thermal accumulating incinerator GRTO | |
| CN207654927U (en) | A kind of coke oven flue gas desulfurization and dedusting denitration coprocessing system | |
| CN103591599B (en) | Discharged flue gas self-heating technology of wet flue gas desulfurization and desulfuration purified flue gas self-heating device | |
| CN205032070U (en) | Desulfurization dust removal denitration integrated device | |
| CN206377689U (en) | A kind of boiler smoke oxygen content kinetic-control system | |
| CN205412681U (en) | Tail gas desulfurization , denitration, dust removal integration treatment device | |
| CN105148696A (en) | Denitration and dust removal system and method for industrial kiln gas | |
| CN207019090U (en) | A kind of processing system of biomass combustion tail gas | |
| CN206191611U (en) | RTO system of burning with adjustable VOCs concentration | |
| CN104132358A (en) | Coal-fired power plant boiler system suitable for low-load operation and combustion adjusting method of boiler system | |
| CN105195013A (en) | Denitration and demercuration apparatus and method with CFB (circulating fluidized bed) boiler | |
| CN207214074U (en) | A kind of cleaning equipment for waste organic gas | |
| US8882884B2 (en) | Systems and methods for optimizing a PAC ratio | |
| CN202769700U (en) | System utilizing oxygen enrichment as cement sintering primary air and coal air | |
| CN104633637B (en) | A kind of coal-burning boiler system | |
| CN205007830U (en) | Denitration dust pelletizing system of industrial stoves flue gas | |
| CN203963976U (en) | Be suitable for the coal-fired plant boiler system of underrun | |
| CN205127744U (en) | CFB boiler denitration demercuration device | |
| CN205288047U (en) | Device that flue gas was handled to non - catalytic selectivity reduction method (SNCR) is used to glass kiln | |
| CN212548952U (en) | Sintering machine head flue gas desulfurization and denitrification treatment device | |
| CN203355613U (en) | Catalyst filtering equipment and waste gas treatment system | |
| CN209378790U (en) | Electronic glass total oxygen melting furnaces production line flue gas collaboration processing integrated apparatus | |
| CN204593439U (en) | A kind of dry-process cement rotary kiln oxygen-enriched combustion aid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518052 Room 201, building A, 1 front Bay Road, Shenzhen Qianhai cooperation zone, Shenzhen, Guangdong Patentee after: Shenzhen Ainengsen Energy Management Co., Ltd. Address before: 518052 Room 201, building A, 1 front Bay Road, Shenzhen Qianhai cooperation zone, Shenzhen, Guangdong Patentee before: Shenzhen arsson Engineering Technology Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |