CN108980818A - The chain grate biomass boiler and control method of nitrogen oxides low emission - Google Patents
The chain grate biomass boiler and control method of nitrogen oxides low emission Download PDFInfo
- Publication number
- CN108980818A CN108980818A CN201810578855.0A CN201810578855A CN108980818A CN 108980818 A CN108980818 A CN 108980818A CN 201810578855 A CN201810578855 A CN 201810578855A CN 108980818 A CN108980818 A CN 108980818A
- Authority
- CN
- China
- Prior art keywords
- air
- control valve
- electric control
- nitrogen oxides
- grate
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B80/00—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel
- F23B80/02—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel by means for returning flue gases to the combustion chamber or to the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L1/00—Passages or apertures for delivering primary air for combustion
- F23L1/02—Passages or apertures for delivering primary air for combustion by discharging the air below the fire
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N3/00—Regulating air supply or draught
- F23N3/005—Regulating air supply or draught using electrical or electromechanical means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses the chain grate biomass boilers and control method of a kind of nitrogen oxides low emission, wherein, chain grate biomass boiler includes: burner hearth, traveling-grate stoker, grate wind chamber, draught distributing box, air blower, air collecting box, Zirconium oxide analyzer and control device；Traveling-grate stoker is set to below burner hearth, and grate wind chamber is set between chain fire-gate upper lower fire grating；Grate wind chamber includes several mutually disconnected small air compartments, each small air compartment passes through the first electric control valve and is connected with draught distributing box, it is provided with flue gas recirculation entrance and air suction inlet on air collecting box, the second electric control valve and third electric control valve are respectively arranged on flue gas recirculation entrance and air suction inlet；Zirconium oxide analyzer is set in the burner hearth above corresponding each small air compartment.According to the technical solution of the present invention, the nitrous oxides concentration of boiler tail emission is reduced.
Description
Technical field
The present invention relates to boiler technology field more particularly to a kind of chain grate biomass boilers of nitrogen oxides low emission
With a kind of control method of the chain grate biomass boiler of nitrogen oxides low emission.
Background technique
The pot that chain grate biomass boiler is with biomass energy as fuel, using traveling-grate stoker as combustion apparatus
Furnace, biomass are burnt in stoker surface " stratiform ", and fuel mixes with air insufficient, while biomass fuel is along the fire grate side of moving
To " subregion " combustion characteristics is shown as, forward and backward region is aerobic less, and intermediate vigorous combustion zone is aerobic more, point of traditional fire grate
Area's air compartment is not able to satisfy the fine subregion burning of fuel, and to guarantee burning for fuel, pot thorax excess air coefficient is generally 1.5
More than, air excess state is presented.Nitrogen is biological growth one of the chief elements, be biomass fuel main composition at
Point, while excessive air has brought a large amount of nitrogen into, there are a large amount of nitrogens for fuel combustion zone；Traveling-grate stoker burner hearth temperature
Degree generally remains in 950 DEG C of hot conditions, does not have the condition of 850 DEG C or less low-temperature burnings.
Under the high temperature conditions, a large amount of nitrogens quickly aoxidize under excess oxygen, are quickly generated harmful nitrogen oxidation
Object --- NOx, so that NO in flue gasxAllow discharge standard far beyond country, becomes and hinder chain grate biomass boiler development
Principal element.
Summary of the invention
At least one of regarding to the issue above, the present invention provides a kind of traveling-grate stoker of nitrogen oxides low emission biologies
Matter boiler and a kind of control method of the chain grate biomass boiler of nitrogen oxides low emission, according to NOxFormation mechanism, from source
Head takes measures, and each small air compartment is individually controlled using electric control valve in grate wind chamber, corresponds to hearth region dress in air compartment
There is Zirconium oxide analyzer to measure one's respective area excess air coefficient, is automatically adjusted by electric control valve, to guarantee complete in fuel
One's respective area keeps the smallest excess air coefficient in the case where full burning；Secondly, it is logical to attract part low-temperature flue gas from boiler tail
It crosses electric control valve and introduces air blower, each small air compartment is entered by air blower, forms flue gas recirculation, flue gas recirculation in furnace
Technology reduces the maximum temperature of flame region, reduces flame temperature to reduce NOxFormation.Flue gas recirculation reduces simultaneously
The concentration of oxygen and nitrogen, forms certain reducing atmosphere, and equally playing reduces NOxEffect.Pass through this technology, traveling-grate stoker biology
Matter boiler tail flue gas NOxDischarge is greatly reduced, and substantially meets boiler national emission standard.
To achieve the above object, the present invention provides a kind of chain grate biomass boiler of nitrogen oxides low emission, packets
It includes: burner hearth, traveling-grate stoker, grate wind chamber, draught distributing box, air blower, air collecting box, Zirconium oxide analyzer and control device；The chain
Fire grate is set to below the burner hearth, and the traveling-grate stoker is rotary structure, and the grate wind chamber is set to the chain
Between the upper lower fire grating of fire grate；The grate wind chamber includes that several mutually disconnected small air compartment, each small air compartments pass through
First electric control valve is connected with the draught distributing box, and the draught distributing box is connected with the air outlet of the air blower, the air blast
The air inlet of machine is connected with the air collecting box, and flue gas recirculation entrance and air suction inlet, institute are provided on the air collecting box
It states and is respectively arranged with the second electric control valve and third electric control valve on flue gas recirculation entrance and the air suction inlet；Institute
It states in the burner hearth that Zirconium oxide analyzer is set to above corresponding each small air compartment, it is the Zirconium oxide analyzer, described
First electric control valve, second electric control valve and the third electric control valve are connected with the control device respectively
It connects.
In the above-mentioned technical solutions, it is preferable that the low-temperature flue gas of the flue gas recirculation entrance and boiler tail exports phase
Connection, the air suction inlet is for extracting air.
In the above-mentioned technical solutions, it is preferable that the chain grate biomass boiler of nitrogen oxides low emission further includes nitrogen oxygen
Compound detector, the nitrogen oxides detector are set to the exit of the boiler tail, for detecting the boiler discharge
Nitrous oxides concentration in gas, the nitrogen oxides detector are connected with the control device.
In the above-mentioned technical solutions, it is preferable that the small air compartment is distributed independently of one another along the chain fire-gate direction, institute
The wind direction of small air compartment is stated towards the direction of the burner hearth.
In the above-mentioned technical solutions, it is preferable that the control device is singlechip controller, embedded controller or PLC
Controller.
The present invention also provides a kind of control methods of the chain grate biomass boiler of nitrogen oxides low emission, comprising:
The excess air coefficient of the corresponding hearth region of each small air compartment is detected using Zirconium oxide analyzer；Using the suction of air blower,
The mixed gas of low-temperature flue gas and atmosphere that boiler tail in air collecting box is discharged inputs draught distributing box；Judge each burner hearth detected
Whether the excess air coefficient in region is greater than preset optimal excess air coefficient, if it is determined that being greater than, then controls and corresponding burner hearth
The first connected electric control valve of the small air compartment in region turns down, until the excess air coefficient of the hearth region is optimal excess
Air coefficient then controls first electric control valve and is failure to actuate if it is determined that being less than or equal to.
In the above-mentioned technical solutions, it is preferable that further include: utilize the nitrogen of boiler tail described in nitrogen oxides detector test
Oxide concentration；Judge whether the nitrous oxides concentration detected is greater than preset discharged nitrous oxides concentration, if it is determined that be greater than,
It then controls the second electric control valve and opens big and/or control third electric control valve and turn down, if it is determined that be less than or equal to, then it is motionless
Make.
Compared with prior art, the invention has the benefit that by small air compartment each in grate wind chamber using electronic
Regulating valve individually controls, and corresponds to hearth region in air compartment and measures one's respective area excess air coefficient equipped with Zirconium oxide analyzer, passes through
Setting oxygen content is automatically adjusted by electric control valve, to guarantee that one's respective area is kept the smallest in the case where fuel completely burned
Excess air coefficient；Secondly, from boiler tail attract part low-temperature flue gas by electricity adjust valve introduce air blower, by air blower into
Enter each air compartment of fire grate, at flue gas recirculation in furnace, flue gas recirculating technique reduces the maximum temperature of flame region, reduces fire
Flame can reduce NOxFormation, while flue gas recirculation reduces the concentration of oxygen and nitrogen, forms certain reducing atmosphere, together
Sample, which plays, reduces NOxEffect.Pass through this technology, chain grate biomass boiler tail flue gas NOxDischarge is greatly reduced, and is met
Boiler national emission standard.
Detailed description of the invention
Fig. 1 is that the structure of the chain grate biomass boiler of nitrogen oxides low emission disclosed in an embodiment of the present invention is shown
It is intended to；
Fig. 2 is the structure of the chain grate biomass boiler of nitrogen oxides low emission disclosed in another embodiment of the invention
Schematic diagram；
Fig. 3 is the controlling party of the chain grate biomass boiler of nitrogen oxides low emission disclosed in an embodiment of the present invention
The flow diagram of method；
Fig. 4 is the control of the chain grate biomass boiler of nitrogen oxides low emission disclosed in another embodiment of the present invention
The flow diagram of method.
Corresponding relationship in figure, between each component and appended drawing reference are as follows:
1. traveling-grate stoker, 2. grate wind chambers, 3. small air compartments, 4. first electric control valves, 5. draught distributing boxs, 6. air blowers, 7.
Air collecting box, 8. second electric control valves, 9. third electric control valves, 10. control devices, 11. cables, 12. Zirconium oxide analyzers,
13. burner hearth, 14. nitrogen oxides detectors.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, a kind of chain grate biomass boiler of the nitrogen oxides low emission provided according to the present invention, packet
It includes: burner hearth 13, traveling-grate stoker 1, grate wind chamber 2, draught distributing box 5, air blower 6, air collecting box 7, Zirconium oxide analyzer 12 and control dress
Set 10；Traveling-grate stoker 1 is set to 13 lower section of burner hearth, and traveling-grate stoker 1 is rotary structure, and grate wind chamber 2 is set to traveling-grate stoker 1
Upper lower fire grating between；Grate wind chamber 2 includes several mutually disconnected small air compartments 3, and each small air compartment 3 passes through the first electric adjustable
Section valve 4 is connected with draught distributing box 5, and draught distributing box 5 is connected with the air outlet of air blower 6, air inlet and 7 phase of air collecting box of air blower 6
It is connected to, flue gas recirculation entrance and air suction inlet is provided on air collecting box 7, is divided on flue gas recirculation entrance and air suction inlet
It is not provided with the second electric control valve 8 and third electric control valve 9；Zirconium oxide analyzer 12 is set to corresponding each small air compartment 3
In the burner hearth 13 of top, Zirconium oxide analyzer 12, the first electric control valve 4, the second electric control valve 8 and third electric control valve
9 are connected with control device 10 respectively.
In this embodiment, grate wind chamber 2 is made of several small air compartments 3, and each small air compartment 3 independently of one another, is not connected to mutually,
Each 3 entrance of small air compartment is connect with the first electric control valve 4, and the first electric control valve 4 is connected with draught distributing box 5, and correspondence is each small
It is equipped with the Zirconium oxide analyzer 12 being connected with control device 10 in the burner hearth 13 of 3 top of air compartment, control device 10 is according to zirconium oxide
The testing result of analyzer 12 manipulates the movement of the first electric control valve 4, to realize the air inlet to small air compartment 3 to burner hearth 13 jointly
The control of speed, so that in the case where guaranteeing biomass fuel completely burned, at corresponding 13 space of burner hearth of each small air compartment 3
Excess air coefficient is minimum.Wherein, the first electric control valve 4 and Zirconium oxide analyzer 12 are filled by cable 11 and control respectively
10 are set to be connected.Control device 10 is preferably singlechip controller, embedded controller or PLC controller.Control device 10 is existing
Have device, after concrete practice situation according to the present invention selects corresponding controller, interface and Zirconium oxide analyzer 12 and
Connection type between first electric control valve 4 is the prior art, therefore details are not described herein.
In the above embodiment, it is preferable that flue gas recirculation entrance is connected with the outlet of the low-temperature flue gas of boiler tail, it is empty
Aspiration entrance is for extracting air.Specifically, exhaust gas volumn adjusted by the second electric control valve 8 on air collecting box 7 and by the
Three electric control valves 9 adjust air capacity and input draught distributing box after being sufficiently mixed to change the mixed proportion of exhaust gas volumn and air capacity
5, small air compartment 3 is then entered by draught distributing box 5, wherein flue gas recycled reduces the ignition temperature of 13 flame of burner hearth, indirectly real
Show low-temperature burning, while having reduced into the oxygen and nitrogen content in burner hearth 13, forms reducing atmosphere ring in burner hearth 13
Border.By above-mentioned measure, on the one hand reduce because chemical reaction generates NOxThe content of middle oxygen and nitrogen, on the other hand by low
Temperature and reducing atmosphere environment further hinder NOxGenerate, thus make biomass fuel chain grate boiler low nitrogen burning at
It is possible, significantly reduces NO in boiler running processxDischarge.
Wherein, air blower is connected with power supply, provides power for the flowing of air, and air blower is preferably frequency conversion air blower,
Concrete practice situation according to the present invention selects suitable power, to provide suitable air velocity.
As shown in Fig. 2, in the above embodiment, it is preferable that the chain grate biomass boiler of nitrogen oxides low emission also
Including nitrogen oxides detector, nitrogen oxides detector is set to the exit of boiler tail, for detecting pot furnace exhaust gas
In nitrous oxides concentration, nitrogen oxides detector is connected by cable 11 with control device 10.Specifically, pass through nitrogen oxidation
The detection that analyte detection instrument carries out the nitrous oxides concentration that boiler tail exports, to 8 He of the second electric control valve in air collecting box 7
The openings of sizes of third electric control valve 9 is controlled, so that the ratio of flue gas recycled amount and air capacity be adjusted, is dropped
The concentration of nitrogen oxides in low chain grate biomass boiler emission.
In the above embodiment, it is preferable that small air compartment 3 is distributed independently of one another along the direction of traveling-grate stoker 1, small air compartment 3
Wind direction is towards the direction of burner hearth 13.Independent small air compartment 3 is distributed in the different zones of the fire grate direction of motion, to different small air compartments
The opening of first electric control valve 4 carries out different control in 3, realizes and burns to the fine subregion of biomass fuel.
As shown in figure 3, the present invention also provides a kind of controls of the chain grate biomass boiler of nitrogen oxides low emission
Method, comprising: step S1 detects the excess air in corresponding 13 region of burner hearth of each small air compartment 3 using Zirconium oxide analyzer 12
Coefficient；Step S2 utilizes the suction of air blower 6, the gaseous mixture of low-temperature flue gas and atmosphere that boiler tail in air collecting box 7 is discharged
Body inputs draught distributing box 5；It is preset optimal to judge whether the excess air coefficient in 13 region of each burner hearth detected is greater than by step S3
Excess air coefficient then controls the first electric control valve 4 being connected with the small air compartment 3 in corresponding 13 region of burner hearth if it is determined that being greater than
It turns down, until the excess air coefficient in 13 region of burner hearth is optimal excess air coefficient, if it is determined that being less than or equal to, then controls
The first electric control valve 4 is made to be failure to actuate.Wherein, optimal excess air coefficient is preferably 1.3~1.4.
Specifically, in conventional conventional boiler, the excess air coefficient of burner hearth 13 generally 1.5 or more, is rendered as air
Superfluous state.It is larger in excess air coefficient by the excess air coefficient in 12 real-time detection burner hearth 13 of Zirconium oxide analyzer
When (being greater than or equal to 1.5), the first electric control valve 4 for controlling the small air compartment 3 in corresponding 13 region of burner hearth is turned down, and is lowered into
Oxygen content in small air compartment 3 reduces the production quantity of nitrogen oxides under excess oxygen to reduce excess air.Pass through above-mentioned control
Method processed, the excess air coefficient in burner hearth 13 can reach 1.3~1.4, and the nitrogen oxides greatly reduced in emission is dense
Degree.
As shown in figure 4, in the above embodiment, it is preferable that further include: step S4 utilizes nitrogen oxides detector test
The nitrous oxides concentration of boiler tail；Step S5, judges whether the nitrous oxides concentration detected is greater than preset nitrogen oxides
Concentration of emission then controls the second electric control valve 8 and opens big and/or control third electric control valve 9 and turn down if it is determined that be greater than, if
Judgement is less than or equal to, then is failure to actuate.Using the nitrous oxides concentration in nitrogen oxides detector test boiler tail emission,
If nitrous oxides concentration allows discharge standard beyond country, by tuning up the second electric control valve 8, turning third motorized adjustment down
Valve 9 not only tunes up the second electric control valve 8 but also turns third electric control valve 9 down, to improve the mixing of exhaust gas volumn and air capacity
Ratio, flue gas reduce the ignition temperature of 13 flame of burner hearth, realize low-temperature burning indirectly, while reducing oxygen and nitrogen content, shape
At reducing atmosphere environment, the generation of nitrogen oxides is further hindered.
The above is embodiments of the present invention, and the traveling-grate stoker of the nitrogen oxides low emission proposed through the invention is raw
Substance boiler and its control method are individually controlled by small air compartment each in grate wind chamber using electric control valve, in air compartment
Corresponding hearth region measures one's respective area excess air coefficient equipped with Zirconium oxide analyzer, by setting oxygen content by electric control valve
Automatic adjustment, to guarantee that one's respective area keeps the smallest excess air coefficient in the case where fuel completely burned；Secondly, from pot
Furnace tail portion attract part low-temperature flue gas by electricity adjust valve introduce air blower, each air compartment of fire grate is entered by air blower, in furnace at
Flue gas recirculation, flue gas recirculating technique reduce the maximum temperature of flame region, and NO can be reduced by reducing flamexShape
At.Flue gas recirculation reduces the concentration of oxygen and nitrogen simultaneously, forms certain reducing atmosphere, and equally playing reduces NOxEffect.
Pass through this technology, chain grate biomass boiler tail flue gas NOxDischarge is greatly reduced, and substantially meets boiler country discharge mark
It is quasi-.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of chain grate biomass boiler of nitrogen oxides low emission characterized by comprising burner hearth, traveling-grate stoker, furnace
Exhaust air box, draught distributing box, air blower, air collecting box, Zirconium oxide analyzer and control device；
The traveling-grate stoker is set to below the burner hearth, and the traveling-grate stoker is rotary structure, the grate wind chamber setting
Between the chain fire-gate upper lower fire grating；
The grate wind chamber include it is several mutually disconnected small air compartment, each small air compartment pass through the first electric control valve with
The draught distributing box be connected, the draught distributing box is connected with the air outlet of the air blower, the air inlet of the air blower with it is described
Air collecting box is connected, and flue gas recirculation entrance and air suction inlet, the flue gas recirculation entrance are provided on the air collecting box
With the second electric control valve and third electric control valve are respectively arranged on the air suction inlet；
The Zirconium oxide analyzer is set in the burner hearth above corresponding each small air compartment, the zirconium oxide analysis
Instrument, first electric control valve, second electric control valve and the third electric control valve respectively with the control
Device is connected.
2. the chain grate biomass boiler of nitrogen oxides low emission according to claim 1, which is characterized in that the cigarette
Gas recycles entrance and is connected with the outlet of the low-temperature flue gas of boiler tail, and the air suction inlet is for extracting air.
3. the chain grate biomass boiler of nitrogen oxides low emission according to claim 2, which is characterized in that further include
Nitrogen oxides detector, the nitrogen oxides detector are set to the exit of the boiler tail, for detecting the boiler
The nitrous oxides concentration in gas is discharged, the nitrogen oxides detector is connected with the control device.
4. the chain grate biomass boiler of nitrogen oxides low emission according to claim 1, which is characterized in that described small
Air compartment is distributed independently of one another along the chain fire-gate direction, and the wind direction of the small air compartment is towards the direction of the burner hearth.
5. the chain grate biomass boiler of nitrogen oxides low emission according to claim 1 or 3, which is characterized in that institute
Stating control device is singlechip controller, embedded controller or PLC controller.
6. a kind of control method of the chain grate biomass boiler of nitrogen oxides low emission is used for nitrogen described in claim 1
The chain grate biomass boiler of oxide low emission characterized by comprising
The excess air coefficient of the corresponding hearth region of each small air compartment is detected using Zirconium oxide analyzer；
Using the suction of air blower, divide the mixed gas input of low-temperature flue gas and atmosphere that boiler tail in air collecting box is discharged to wind
Case；
Judge whether the excess air coefficient of each hearth region detected is greater than preset optimal excess air coefficient, if it is determined that
It is greater than, then controls the first electric control valve being connected with the small air compartment of corresponding hearth region and turn down, until the mistake of the hearth region
Amount air coefficient is optimal excess air coefficient, if it is determined that being less than or equal to, then it is motionless to control first electric control valve
Make.
7. the control method of the chain grate biomass boiler of nitrogen oxides low emission according to claim 6, feature
It is, further includes:
Utilize the nitrous oxides concentration of boiler tail described in nitrogen oxides detector test；
Judge whether the nitrous oxides concentration detected is greater than preset discharged nitrous oxides concentration, if it is determined that being greater than, then controls
Second electric control valve is opened big and/or control third electric control valve and is turned down, if it is determined that being less than or equal to, is then failure to actuate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810578855.0A CN108980818A (en) | 2018-06-07 | 2018-06-07 | The chain grate biomass boiler and control method of nitrogen oxides low emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810578855.0A CN108980818A (en) | 2018-06-07 | 2018-06-07 | The chain grate biomass boiler and control method of nitrogen oxides low emission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108980818A true CN108980818A (en) | 2018-12-11 |
Family
ID=64540892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810578855.0A Pending CN108980818A (en) | 2018-06-07 | 2018-06-07 | The chain grate biomass boiler and control method of nitrogen oxides low emission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108980818A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107884A (en) * | 2019-04-29 | 2019-08-09 | 航天科工哈尔滨风华有限公司电站设备分公司 | A kind of efficiently low NOXBurning zone fires device |
| CN110566939A (en) * | 2019-10-08 | 2019-12-13 | 河北省特种设备监督检验研究院 | Flue gas recirculation auxiliary grading air distribution boiler |
| CN110986074A (en) * | 2019-12-06 | 2020-04-10 | 西安交通大学 | Chain furnace is high-efficient low NOxSystem and method for co-combusting coal-based solid fuel |
| CN117167749A (en) * | 2022-09-02 | 2023-12-05 | 洛阳瑞昌环境工程有限公司 | Incineration system and incineration control method for nitrogen-containing waste |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204574001U (en) * | 2015-03-13 | 2015-08-19 | 江苏盛凯环保工程有限公司 | A kind of low NOx chain furnace of be coupled fractional combustion and flue gas recirculation |
| CN205535935U (en) * | 2016-04-06 | 2016-08-31 | 中国南方航空工业(集团)有限公司 | Air distribution controlling means and traveling grate boiler for traveling grate boiler |
| CN205807453U (en) * | 2016-05-26 | 2016-12-14 | 中国计量学院 | A kind of spreader stoker chain boiler using flue gas recirculation to reduce NOx emission |
| CN205979743U (en) * | 2016-08-19 | 2017-02-22 | 福建永恒能源管理有限公司 | Multiple air distribution system of buggy industrial boiler low -nitrogen combustion |
| CN107120824A (en) * | 2017-06-02 | 2017-09-01 | 清华大学 | A kind of Biomass Briquette Boiler system |
-
2018
- 2018-06-07 CN CN201810578855.0A patent/CN108980818A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204574001U (en) * | 2015-03-13 | 2015-08-19 | 江苏盛凯环保工程有限公司 | A kind of low NOx chain furnace of be coupled fractional combustion and flue gas recirculation |
| CN205535935U (en) * | 2016-04-06 | 2016-08-31 | 中国南方航空工业(集团)有限公司 | Air distribution controlling means and traveling grate boiler for traveling grate boiler |
| CN205807453U (en) * | 2016-05-26 | 2016-12-14 | 中国计量学院 | A kind of spreader stoker chain boiler using flue gas recirculation to reduce NOx emission |
| CN205979743U (en) * | 2016-08-19 | 2017-02-22 | 福建永恒能源管理有限公司 | Multiple air distribution system of buggy industrial boiler low -nitrogen combustion |
| CN107120824A (en) * | 2017-06-02 | 2017-09-01 | 清华大学 | A kind of Biomass Briquette Boiler system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107884A (en) * | 2019-04-29 | 2019-08-09 | 航天科工哈尔滨风华有限公司电站设备分公司 | A kind of efficiently low NOXBurning zone fires device |
| CN110566939A (en) * | 2019-10-08 | 2019-12-13 | 河北省特种设备监督检验研究院 | Flue gas recirculation auxiliary grading air distribution boiler |
| CN110986074A (en) * | 2019-12-06 | 2020-04-10 | 西安交通大学 | Chain furnace is high-efficient low NOxSystem and method for co-combusting coal-based solid fuel |
| CN117167749A (en) * | 2022-09-02 | 2023-12-05 | 洛阳瑞昌环境工程有限公司 | Incineration system and incineration control method for nitrogen-containing waste |
| CN117167749B (en) * | 2022-09-02 | 2024-05-31 | 洛阳瑞昌环境工程有限公司 | Incineration system and incineration control method for nitrogen-containing waste |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108980818A (en) | The chain grate biomass boiler and control method of nitrogen oxides low emission | |
| CN101903495A (en) | Controllable air channels for feeding additional combustion air into the area of flue gas channels of coking chamber furnaces | |
| CZ285366B6 (en) | Process of heating recovery glass furnace with cross flame and the recovery glass melting furnace for making the same | |
| CN103134328A (en) | Method and device for industrial furnace atmosphere automatic combustion control | |
| CN113464950B (en) | Household garbage incineration system based on smoke recycling multilayer air distribution | |
| CN2505478Y (en) | Heat recovering coke oven body | |
| CN108728126B (en) | High-directional heating uniformity at any time adjustable coke oven heating system and adjusting method | |
| CN109307435A (en) | A kind of flue gases of cock oven time match system and method | |
| CN208670994U (en) | The chain grate biomass boiler of nitrogen oxides low emission | |
| CN106122957A (en) | A kind of low NOx cleaning burning type ignition furnace and method for controlling combustion thereof | |
| RU2086855C1 (en) | Method for control of fuel-air ratio for several burners | |
| CN206786737U (en) | A kind of burner | |
| CN111750351B (en) | Method and apparatus for automatically adjusting flame to accommodate different operating conditions | |
| CN201473499U (en) | Control system of hot wall type gasifier baker | |
| CN209706089U (en) | A kind of cremate furnace exhaust gas multistage incinerator | |
| CN209166127U (en) | A kind of flue gases of cock oven time match system | |
| CN206176368U (en) | Pure oxygen combustor | |
| CN114046532B (en) | Based on CO/O2Control method of wall-attached wind device for on-line monitoring | |
| JP3103476B2 (en) | Combustion control method for ceramic firing furnace | |
| CN110296601B (en) | Low-nitrogen combustion system of tunnel kiln | |
| CN218545323U (en) | Device for reducing nitrogen oxides in coke oven waste gas | |
| CN206112922U (en) | Gas stove burner who has two inlet channel at least | |
| CN219120589U (en) | Organic waste gas incinerator | |
| CN106402859A (en) | Pure-oxygen combustor | |
| CN206112923U (en) | Single inlet channel's gas stove burner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181211 |