CN107014205A - A kind of sintering ignition furnace temperature automatic control power-economizing method - Google Patents
A kind of sintering ignition furnace temperature automatic control power-economizing method Download PDFInfo
- Publication number
- CN107014205A CN107014205A CN201710244578.5A CN201710244578A CN107014205A CN 107014205 A CN107014205 A CN 107014205A CN 201710244578 A CN201710244578 A CN 201710244578A CN 107014205 A CN107014205 A CN 107014205A
- Authority
- CN
- China
- Prior art keywords
- valve position
- coal gas
- air valve
- span
- sintering
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0034—Regulation through control of a heating quantity such as fuel, oxidant or intensity of current
- F27D2019/004—Fuel quantity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0034—Regulation through control of a heating quantity such as fuel, oxidant or intensity of current
- F27D2019/004—Fuel quantity
- F27D2019/0043—Amount of air or O2 to the burner
Abstract
A kind of sintering ignition furnace temperature automatic control power-economizing method; belong to sintering ignition furnace and automatically control field of combustion technology; it is specifically related to a kind of based on ignition furnace difference variation, difference variation rate, sintering machine machine speed change and target temperature automatically adjust coal gas, air valve position method, the present invention using control coal gas and air valve position by the way of realize ignition furnace temperature automatic control, sintering machine shut down gas automatic shutoff control, sintering machine start automatic ignition control.The implementation of the inventive method, greatly improved ignition furnace temperature automatic control level, it is ensured that the stabilization and sinter quality of igniting furnace temperature, it is to avoid the generation for the dangerous situation that abnormal air-fuel ratio is caused, and reduce the consumption of production process coal gas.
Description
Technical field
Field of combustion technology is automatically controlled the invention belongs to sintering ignition furnace, ignition furnace temperature automatic control is specifically provided
Method.
Background technology
For a long time, sintering ignition furnace temperature automatic control is always that a problem annoyings iron and steel enterprise.Because weld point
The reasonable control of stove temperature is not only the premise for ensureing sintering deposit sintering quality, and under the overall background of energy-saving and emission-reduction, energy
The gas consumption of sintering process is enough significantly reduced, the discharge of the dusty gas caused due to non-fully burning is reduced.Therefore this hair
Energy restructuring for sintering production process and whole steel plant is provided and instructed well by bright proposition and implementation, to enterprise
Cost efficiency provides substantial help.
The content of the invention
It is an object of the invention to provide one kind based on ignition furnace difference variation, difference variation rate, the speed change of sintering machine machine
With target temperature automatically adjust coal gas, air valve position method, realize ignition furnace temperature automatic control, sintering machine shut down coal gas from
Dynamic closing control, sintering machine start automatic ignition control.
A kind of sintering ignition furnace temperature automatic control power-economizing method, operating procedure is as follows：
Step one：The setting of control parameter：Need to set necessary control parameter before system operation, main bag
Include：
Temperature difference dead band is D, and according to the control accuracy of different ignition of sintering process furnace temperatures, the temperature difference is in the D of dead band, and model is uncomfortable
Section, 5-10 DEG C of span；Temperature allows maximum deviation to be De, shows that temperature deviation is excessive, model is not adjusted, span
100-120℃；Machine speed V0, for differentiating whether sintering machine is in the minimum speed setting value of stopped status；Calculating cycle is T：
Model put into operation after regulating cycle, span 100-200S；Weighted number K1, for flow increment F1 calculating, expression is
The ratio of temperature deviation war final flow rate increment, span 0-1；Gas valve of starting shooting is W0, is given when sintering machine starts
Initial gas valve place value；COEFFICIENT K 2, for flow increment F2 calculating, represents the caused flow increment ratio of machine speed change, takes
It is worth scope 50-150；Air-fuel ratio is set as C, the condition for calculating air capacity, span 5.8-6.2；Air during shutdown
Flow value is Fa0；Coal gas, air valve position compensation rate are △ W, coal gas, air valve position compensation rate, span 2%- in the cycle
4%；The judgement time that coal gas, air valve position compensation rate are △ W in cycle T is m, span 10-30S；It is warm in calculating cycle
It is △ e to spend the excessive value of deviation, and within the adjustment cycle, temperature deviation is in the range of adjustable De, during more than the value, and from this week
End time is more than time m, and it is △ W, 20-30 DEG C of span to perform coal gas, an air valve position compensation rate；Performed in cycle
Coal gas, air valve position a compensation rate be the time that △ W judge and calculated temperature deviation rate of change be Ce, span 20-30S.System
Number K3, the parameter calculated for valve position increment W1, span 0-1；Coal gas, air valve position increment limit value are W, per dant
The maximum of gas, air valve opening adjustment amount, span 1%-3%.
Step 2：Sintering machine is opened, the judgement of stopped status：Set after necessary parameter, it is necessary to the current shape of sintering machine
State is judged：
Open state：Sintering machine machine speed V>V0, illustrates that sintering machine is in open state.If sintering machine is started shooting and opened
It is dynamic, then the start gas valve position W0 in common parameter is assigned to gas valve position Wg；Air capacity directly reads real-time air stream
Amount or valve position；If sintering machine is in normal production status, real-time air capacity, coal gas amount or air valve position, coal are directly read
Air valve position, carries out the operation of step 3.
Stopped status：Sintering machine machine speed V≤V0, illustrates that sintering machine is in the state shut down or shut down.0 is assigned to
Gas valve position Wg, if air mass flow Fa<Fa0, then make Fa=Fa0；If air mass flow Fa>=Fa0, then keep current sky
Throughput Fa is constant.
Step 3：Ignition furnace temperature automatic control：
Gas valve position Wg=Wg0+W1+W2；
Air valve place value Wa=Wa0+W1+W2.
Wg0, Wa0 are respectively coal gas and air valve position initial value, are coal gas, the air valve position of upper execution computation of Period；
W1 be according to each parameter and temperature deviation e and rate of temperature change ec calculate come valve adjustment amount, cycle T judged whether
Need to adjust gas valve, i.e. W1=K3* (K1*e+ (1-K1) * ec).If W1>W, then W1=W；If W1<- W, then W1=-
W.If current time is away from temperature and current time of this period modulation end time interval more than Ce seconds before m seconds, current time
The deviation variation rate of temperature is in the same direction with this cycle rate of temperature change, and temperature deviation is more than the excessive value △ e of deviation, then in this cycle
It inside should also add compensation rate a △ W, i.e. Wg0=Wg0+ △ W, Wa0=Wa0+ △ W to coal gas, air door.W2 is become according to machine speed
Rate EC and parameter calculate the adjustment amount come, if the change of sintering machine machine speed is, it is necessary to calculate adjustment amount W2, i.e., within this cycle
W2=EC*K2*K3.Actual mixing ratio C1=present airs value/current coal gas value.Adjust classification situation as follows：
Sintering machine machine speed v>V0 and D≤| e | during≤De：
C-1≤C1≤C+1, then Wg=Wg0+W1+W2, Wa=Wa0+W1+W2；
C1≤C-1 and W1<0 or W2<0, then Wg=Wg0+W1+W2, Wa=Wa0；
C+1≤C1 and W1>0 or W2>0, then Wg=Wg0+W1+W2, Wa=Wa0.
Sintering machine machine speed V>V0 and | e | during≤D：W1=0, then Wg=Wg0+W2, Wa=Wa0+W2.
Sintering machine machine speed V>V0 and | e |>During De：W1=0, then Wg=Wg0+W2, Wa=Wa0+W2.
The implementation of the inventive method, greatly improved ignition furnace temperature automatic control level, it is ensured that igniting furnace temperature
Stable and sinter quality, it is to avoid the generation for the dangerous situation that abnormal air-fuel ratio is caused, reduces the consumption of production process coal gas.
Brief description of the drawings
Fig. 1 is sintering ignition energy-saving automatic control method flow chart of the present invention.
Fig. 2 is ignition furnace temperature automatic control flow chart of the present invention.
Embodiment
To allow the features described above and advantage of the present invention can be more obvious understandable, below in conjunction with accompanying drawing and instantiation to this hair
It is bright to be described in further detail：
A kind of described sintering ignition furnace temperature automatic control power-economizing method, operating procedure is as follows：
Step one：Control parameter is set：
Temperature difference dead band is D, and according to the control accuracy of different ignition of sintering process furnace temperatures, the temperature difference is in the D of dead band, and model is uncomfortable
Section, 10 DEG C of span；Temperature allows maximum deviation to be De, shows that temperature deviation is excessive, model is not adjusted, span 120
℃；Machine speed V0, for differentiating whether sintering machine is in the minimum speed setting value of stopped status, 0.3m/s；Calculating cycle is T：
Model put into operation after regulating cycle, span 120S；Weighted number K1, for flow increment F1 calculating, expression is temperature
The ratio of deviation war final flow rate increment, span 0.4；Gas valve of starting shooting is W0, and what is given when sintering machine starts is initial
Gas valve place value, 30%；COEFFICIENT K 2, for flow increment F2 calculating, represents the caused flow increment ratio of machine speed change, takes
It is worth scope 100；Air-fuel ratio is set as C, the condition span for calculating air capacity, 6；Air flow value during shutdown is
Fa0,10000Nm3/h；
Coal gas, air valve position compensation rate are △ W, coal gas, air valve position compensation rate, span 3% in the cycle；Cycle T
The judgement time that interior coal gas, air valve position compensation rate are △ W is m, span 25S；The excessive value of temperature deviation in calculating cycle
For △ e, within the adjustment cycle, temperature deviation is in the range of adjustable De, and during more than the value, and the end time is more than from this week
Time m, it is △ W, 20 DEG C of span to perform coal gas, an air valve position compensation rate；Coal gas, air valve position is performed in cycle to mend
It is Ce, span 25S the time that △ W judge and calculated temperature deviation rate of change that the amount of repaying, which is,.COEFFICIENT K 3, for valve position increment W1
The parameter of calculating, span 0.1；Coal gas, an air valve position increment limit value be W, each coal gas, air valve opening adjustment amount
Maximum, span 2.5%.
Step 2：Control parameter has set rear, it is necessary to judge sintering machine current state：
Open state：Sintering machine machine speed V>0.3m/s, illustrates that sintering machine is in open state.If sintering machine is started shooting
Start, then gas valve position is reached 30%；Air capacity directly reads real-time air mass flow or valve position；If sintering machine is in just
Normal production status, then directly read real-time air capacity, coal gas amount or air valve position, gas valve position, carry out the operation of step 3.
Stopped status：Sintering machine machine speed V≤0.3m/s, illustrates that sintering machine is in the state shut down or shut down.By coal
Air valve position is fully closed, if air mass flow Fa<10000Nm3/ h, then make Fa=10000Nm3/h；If air mass flow Fa>=
10000Nm3/ h, then keep current air mass flow Fa constant.
Step 3：Ignition furnace temperature automatic control：
Fig. 2 is ignition furnace temperature automatic control flow chart of the present invention.
Gas valve place value Wg=Wg0+W1+W2；
Air valve place value Wa=Wa0+W1+W2.
Wg0, Wa0 are respectively coal gas and air valve position initial value, are coal gas, the air valve position of upper execution computation of Period；
W1 be according to each parameter and temperature deviation e and rate of temperature change ec calculate come valve adjustment amount, sentenced with cycle 120S
It is disconnected whether to need to adjust gas valve, i.e. W1=K3* (K1*e+ (1-K1) * ec).If W1>2.5%, then W1=2.5%；Such as
Fruit W1<- 2.5%, then W1=-2.5%.If current time is more than 20S, current time away from this period modulation end time interval
Preceding 25S temperature is in the same direction with this cycle rate of temperature change with the deviation variation rate of current time temperature, and temperature deviation is more than partially
Excessive 25 DEG C of the value of difference, then should also add compensation rate 3%, i.e. a Wg0=Wg0+3%, Wa0 within this cycle to coal gas, air door
=Wa0+3%.W2 be according to machine speed rate of change EC and parameter calculate come adjustment amount, if within this cycle sintering machine machine speed
Change is, it is necessary to calculate adjustment amount W2, i.e. W2=EC*100*0.1.Actual mixing ratio C1=present airs value/current coal gas value.Adjust
Whole classification situation is as follows：
Sintering machine machine speed v>0.3m/s and 10 DEG C≤| e | at≤120 DEG C：
5≤C1≤7, then Wg=Wg0+W1+W2, Wa=Wa0+W1+W2；
C1≤5 and W1<0 or W2<0, then Wg=Wg0+W1+W2, Wa=Wa0；
7≤C1 and W1>0 or W2>0, then Wg=Wg0+W1+W2, Wa=Wa0.
Sintering machine machine speed V>0.3m/s and | e | at≤10 DEG C：W1=0, then Wg=Wg0+W2, Wa=Wa0+W2.
Sintering machine machine speed V>0.3m/s and | e |>At 120 DEG C：W1=0, then Wg=Wg0+W2, Wa=Wa0+W2.
The design parameter value used in embodiment described above, be according to different sintering in actual application
Machine is changed accordingly, but sintering ignition energy-saving control method provided by the present invention is applied to all sintering machines.Slightly
Slightly estimate the implementation of the control method, 0.2m will be saved3/ t gas using quantities.
Claims (2)
1. a kind of sintering ignition furnace temperature automatic control power-economizing method, it is characterised in that：
Step 1: the setting of control parameter：Temperature difference dead band D, temperature allows maximum deviation De, machine speed V0, calculating cycle T, weighting
Number K1, start gas valve position W0, COEFFICIENT K 2 sets temperature in air-fuel ratio C, air flow value Fa0 during shutdown, calculating cycle inclined
The excessive value △ e of difference, coal gas, air valve position compensation rate are that coal gas, air valve position compensation rate sentencing for △ W are performed in △ W, cycle T
It is that △ W judge and calculate the time Ce of temperature deviation rate of change that coal gas, air valve position compensation rate are performed in disconnected time m, cycle, is
Number K3, coal gas, air valve position increment limit value W；
Step 2: sintering machine is opened, the judgement of stopped status：
As sintering machine machine speed V>V0, illustrates that sintering machine is in open state；
As sintering machine machine speed V≤V0, illustrate that sintering machine is in stopped status；
Step 3: ignition furnace temperature automatic control：
Gas valve position Wg=Wg0+W1+W2；
Air valve place value Wa=Wa0+W1+W2；
Wg0, Wa0 are respectively coal gas and air valve position initial value, are coal gas, the air valve position of upper execution computation of Period；
W1=K3* (K1*e+ (1-K1) * ec)；
W2=EC*K2*K3；
Actual mixing ratio C1=present airs value/current coal gas value, adjustment classification situation is as follows：
Sintering machine machine speed V>V0 and D≤| e | during≤De：
C-1≤C1≤C+1, then Wg=Wg0+W1+W2, Wa=Wa0+W1+W2；
C1≤C-1 and W1<0 or W2<0, then Wg=Wg0+W1+W2, Wa=Wa0；
C+1≤C1 and W1>0 or W2>0, then Wg=Wg0+W1+W2, Wa=Wa0；
Sintering machine machine speed V>V0 and | e | during≤D：W1=0, then Wg=Wg0+W2, Wa=Wa0+W2；
Sintering machine machine speed V>V0 and | e |>During De：W1=0, then Wg=Wg0+W2, Wa=Wa0+W2.
2. control method as claimed in claim 1, it is characterised in that：5-10 DEG C of temperature difference dead band span；Described
Temperature allows 100-120 DEG C of maximum deviation span；Described machine speed is used to differentiate whether sintering machine is in stopped status
Minimum speed setting value；Described calculating cycle span 100-200S；Described weighted number K1 spans 0-1；It is described
The span 50-150 of COEFFICIENT K 2；Described air-fuel ratio span 5.8-6.2；Described coal gas, air valve position compensation rate
Span 2%-4%；The judgement time span 10- that coal gas, air valve position compensation rate are △ W in described cycle T
30S；It is that △ W judge and calculate the time of temperature deviation rate of change that coal gas, air valve position compensation rate are performed in the described cycle, is taken
It is worth scope 20-30S；The described span 0-1 of COEFFICIENT K 3；Described coal gas, air valve position increment limit value span
1%-3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710244578.5A CN107014205B (en) | 2017-04-14 | 2017-04-14 | A kind of sintering ignition furnace temperature automatic control power-economizing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710244578.5A CN107014205B (en) | 2017-04-14 | 2017-04-14 | A kind of sintering ignition furnace temperature automatic control power-economizing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107014205A true CN107014205A (en) | 2017-08-04 |
| CN107014205B CN107014205B (en) | 2019-10-08 |
Family
ID=59446780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710244578.5A Active CN107014205B (en) | 2017-04-14 | 2017-04-14 | A kind of sintering ignition furnace temperature automatic control power-economizing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107014205B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726855A (en) * | 2017-09-15 | 2018-02-23 | 首钢京唐钢铁联合有限责任公司 | A kind of sintering ignition furnace control method and device |
| CN110196112A (en) * | 2019-05-31 | 2019-09-03 | 苏州迅鹏仪器仪表有限公司 | Ignition installation condition detection method and the fire inspection instrument for applying it |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997670A (en) * | 2012-12-27 | 2013-03-27 | 中冶长天国际工程有限责任公司 | Method and device for controlling sintering ignition furnace |
| JP2013129895A (en) * | 2011-12-22 | 2013-07-04 | Jfe Steel Corp | Sintering machine and method of supplying gas fuel |
| CN103471393A (en) * | 2013-09-27 | 2013-12-25 | 中冶长天国际工程有限责任公司 | Blast furnace gas double preheating and ignition furnace temperature control method and device |
| KR20160059565A (en) * | 2014-11-18 | 2016-05-27 | 주식회사 포스코 | Apparatus and Method for Manufacturing Sintered Ore |
| CN106440811A (en) * | 2016-10-31 | 2017-02-22 | 马鞍山钢铁股份有限公司 | Igniting device and ignition method for sintering |
-
2017
- 2017-04-14 CN CN201710244578.5A patent/CN107014205B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013129895A (en) * | 2011-12-22 | 2013-07-04 | Jfe Steel Corp | Sintering machine and method of supplying gas fuel |
| CN102997670A (en) * | 2012-12-27 | 2013-03-27 | 中冶长天国际工程有限责任公司 | Method and device for controlling sintering ignition furnace |
| CN103471393A (en) * | 2013-09-27 | 2013-12-25 | 中冶长天国际工程有限责任公司 | Blast furnace gas double preheating and ignition furnace temperature control method and device |
| KR20160059565A (en) * | 2014-11-18 | 2016-05-27 | 주식회사 포스코 | Apparatus and Method for Manufacturing Sintered Ore |
| CN106440811A (en) * | 2016-10-31 | 2017-02-22 | 马鞍山钢铁股份有限公司 | Igniting device and ignition method for sintering |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726855A (en) * | 2017-09-15 | 2018-02-23 | 首钢京唐钢铁联合有限责任公司 | A kind of sintering ignition furnace control method and device |
| CN107726855B (en) * | 2017-09-15 | 2019-11-19 | 首钢京唐钢铁联合有限责任公司 | A kind of sintering ignition furnace control method and device |
| CN110196112A (en) * | 2019-05-31 | 2019-09-03 | 苏州迅鹏仪器仪表有限公司 | Ignition installation condition detection method and the fire inspection instrument for applying it |
| WO2020238089A1 (en) * | 2019-05-31 | 2020-12-03 | 苏州迅鹏仪器仪表有限公司 | Method for detecting state of ignition apparatus, and ignition detection device using same |
| CN110196112B (en) * | 2019-05-31 | 2021-07-16 | 苏州迅鹏仪器仪表有限公司 | Ignition equipment state detection method and fire detector using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107014205B (en) | 2019-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101408314B (en) | Automatic control system of blast furnace hot blast stove combustion process | |
| CN100349081C (en) | Harmonization control method for blast furnace hot blast stove system | |
| CN107014205A (en) | A kind of sintering ignition furnace temperature automatic control power-economizing method | |
| CN105628389B (en) | A kind of test bay state point analog control method | |
| CN111692611B (en) | Automatic control system and method for boiler air supply of power plant | |
| CN106839746B (en) | A kind of bf coal injection system combustion gas furnace, which automatically optimizes, burns furnace control method | |
| CN106123005A (en) | The coal-supplying amount pre-control method of coal unit boiler feed-forward | |
| CN106011352A (en) | Optimized control system for coal gas flow of blast-furnace hot blast stove | |
| CN107245570A (en) | A kind of cold rolled annealed stove heat combination control method | |
| CN110195715A (en) | Control method, device and the mechanical equipment of the adjustable vane of mechanical equipment | |
| CN107120677A (en) | The method and system that a kind of combustion-supporting wind pressure of heating furnace is automatically controlled | |
| CN106423526B (en) | Low speed coal mill wind system intelligent control method and module | |
| CN106916597A (en) | Dry quenched coke gas circulating system control method | |
| CN101949652A (en) | Hot air temperature and sintering trough point temperature coordinated control method based on satisfactory optimization | |
| CN108587656A (en) | A kind of dry coke quenching circulatory system and nitrogen charging replacing process | |
| CN106011353A (en) | Self-optimization method for air-fuel ratio of blast-furnace hot blast stove | |
| CN106127351A (en) | A kind of blast funnace hot blast stove initially burns producer gas flow optimization system | |
| CN116481329A (en) | System and method capable of adjusting use and consumption of circulating smoke | |
| CN114675543B (en) | Hot blast stove intelligent combustion control method based on optimized learning algorithm | |
| CN100378016C (en) | Small perturbation reversal control method for kiln furnace | |
| CN110129501B (en) | Technical improvement method for optimizing nitrate reduction of vanadium-titanium pellet fuel gas | |
| EP3379057A1 (en) | Systems and methods for closed loop control of obb valve for power generation systems | |
| US4064017A (en) | Method of operating coke ovens | |
| CN105135471B (en) | The switching control and method of oxygen-enriched combustion system operational mode | |
| CN209386786U (en) | A kind of rotary hearth furnace automatic combustion control device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |