CN112410490A - Front reaction type constant temperature automatic burning technology for hot-blast stove - Google Patents
Front reaction type constant temperature automatic burning technology for hot-blast stove Download PDFInfo
- Publication number
- CN112410490A CN112410490A CN202011309858.8A CN202011309858A CN112410490A CN 112410490 A CN112410490 A CN 112410490A CN 202011309858 A CN202011309858 A CN 202011309858A CN 112410490 A CN112410490 A CN 112410490A
- Authority
- CN
- China
- Prior art keywords
- temperature
- gas
- air
- coal gas
- combustion
- 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
- 238000005516 engineering process Methods 0.000 title claims abstract description 34
- 238000006757 chemical reactions by type Methods 0.000 title abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims abstract description 88
- 239000003034 coal gas Substances 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 63
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 27
- 229910052760 oxygen Inorganic materials 0.000 claims description 27
- 239000001301 oxygen Substances 0.000 claims description 27
- 239000000446 fuel Substances 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 3
- 238000009851 ferrous metallurgy Methods 0.000 abstract description 2
- 239000003546 flue gas Substances 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
- F24H9/2085—Arrangement or mounting of control or safety devices for air heaters using fluid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a front reaction type constant-temperature automatic burning technology of a hot blast stove, and relates to the technical field of ferrous metallurgy. The 'front reaction' type constant temperature automatic burning technology of the hot blast stove is characterized in that: the method comprises the following steps: s1, monitoring all components of coal gas, coal gas temperature, coal gas flow, combustion air temperature and flow parameters in real time when the coal gas enters the furnace; s2, calculating the heat value of the coal gas according to the coal gas components; and S3, calculating the physical heat of the gas according to the gas components and the temperature. The 'front reaction' type constant-temperature automatic burning technology of the hot blast stove changes the 'rear reaction' type automatic burning technology which is commonly adopted at present into the 'front reaction' type constant-temperature automatic burning technology, cancels the 'self-learning' process in the 'rear reaction' type automatic burning technology and the limitation of depending on the experience level of operators during manual intervention and adjustment, ensures that the burning temperature of the hot blast stove can still ensure the constant-temperature burning within the range of +/-15 ℃ under the condition of large gas composition or gas supply pressure fluctuation, and the wind temperature is continuous and stable.
Description
Technical Field
The invention relates to the technical field of ferrous metallurgy, in particular to a front reaction type constant-temperature automatic burning technology of a hot blast stove.
Background
The existing hot blast stove control technology basically focuses on online monitoring of the temperature and pressure of the gas and the combustion air, the combustion temperature, the flue gas temperature and the flue gas components in the combustion process for the first few times, then obtaining a proper air-fuel ratio (self-learning process) of the required combustion temperature under the combustion condition, and automatically adjusting the gas supply quantity of the gas and the combustion air to meet the air-fuel ratio requirement, thereby generating the combustion temperature meeting the process requirements. The automatic furnace burning mode belongs to a post-reaction type control technology.
The existing automatic furnace burning technology is mature in temperature, flow, pressure, gas composition on-line monitoring, automatic valve opening adjustment, remote real-time communication and feedback.
The comparison with the prior document is as follows:
compared with a combustion control device of a hot blast stove in patent CN201520183880.0
The ' 0010 ' item in the specification uses flue gas data for real-time calculation of the air-fuel ratio, namely the ' post-reaction ' type control technology is described in the technical background of ' hot-blast stove ' pre-reaction type constant-temperature automatic burning technology ', the gas can have flue gas detection data only after burning, and the ' pre-reaction ' type control technology in the specification can calculate the air-fuel ratio in real time without depending on the flue gas data, namely the air-fuel ratio can be calculated in real time before burning of the gas.
Although the gas measuring instrument is also mentioned in the text, the gas measuring instrument is a gas measuring instrument which is commonly used in the production field at present and is used off-line or on-line, and the gas full-component on-line detection device (capable of simultaneously H and H) is described in the text2、O2、CO、CH4、CO2、CmHnAnd N2The contents of the seven components, the moisture in the gas is detected by a special other instrument) are not the same instrument.
In addition, the purpose of the abstract is to improve the air temperature and reduce the gas consumption, and the purpose of the abstract is to ensure the constant-temperature combustion within the range of +/-15 ℃ under the condition of relatively large gas composition or gas supply pressure fluctuation, and to keep the air temperature continuous and stable, wherein the purposes are different.
Compared with the on-line soft measurement method of the coal gas entering the furnace of the full-combustion converter gas industrial furnace in the patent CN201811547958.7
The abstract also refers to a gas online detector which is only used for obtaining a heat value and detecting CO and H in converter gas2And CH4The heat value can be calculated, and the assumed iterative approximation treatment is carried out on the heat value in the step 3, so that the purpose of accurately calculating H in the step 3.11-3.15 of the coal gas is achieved2、CO、O2、CO2And N2The gas online detector is also a commonly used online gas measuring instrument in the current production field, and is fundamentally different from a 'gas all-component online detecting device' in the text, the 'gas all-component online detecting device' in the text, which calculates the gas components in the text, is directly detected data, complex operation is not needed, the detected all-component data enters a next calculation link, the gas heat value is only calculated process parameters in the text, and the step 3 in the abstract is completely omitted.
The article mainly aims at converter gas, and the hot blast stove mainly uses blast furnace gas, and the gas component of the blast furnace gas is more than that of the converter gas.
Compared with the dynamic optimization control method of the heating furnace temperature based on the combustion air flow calculation (CN202010033527. X)
In this abstract, "according to detected O in flue gas2The dynamic control of the excess air coefficient by adopting a method for adjusting the speed of a combustion fan is a typical 'post-reaction' type control technology in the background technology, and the dynamic control of the excess air coefficient in the method does not depend on the detection component of flue gas after combustion, but detects data and process according to the whole components of coal gas before combustionThe required combustion temperature enables this parameter to be determined.
The heating furnace is used for a steel rolling process, mainly uses coke oven gas and converter gas, and uses blast furnace gas in the hot blast stove.
The 'post-reaction' type furnace burning control technology has good furnace burning effect under the condition that the burning conditions (coal gas components and gas supply pressure) are stable, but if the fluctuation of the burning conditions is large, manual intervention and adjustment are needed, and the temperature of the furnace is recovered to the previous furnace burning temperature as soon as possible. Otherwise, the temperature of the prior furnace can be recovered only after the automatic adjustment under the technology is used for burning for at least one time, the fluctuation of the intermediate air temperature is large, and the effect of manual intervention and adjustment depends on the experience level of operators.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a front reaction type constant-temperature automatic burning technology of a hot blast stove, which solves the problem that when a rear reaction type burning control technology is used, if the fluctuation of the combustion condition is large, manual intervention is needed for adjustment, and the temperature of the hot blast stove is recovered to the previous burning temperature as soon as possible. Otherwise, the temperature of the prior furnace can be recovered only after the automatic adjustment under the technology is carried out for at least one time of furnace burning, the fluctuation of the intermediate air temperature is large, and the effect of manual intervention and adjustment depends on the experience level of operators.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a front reaction type constant temperature automatic burning technology of a hot blast stove comprises the following steps:
s1, monitoring all components of coal gas, coal gas temperature, coal gas flow, combustion air temperature and flow parameters in real time when the coal gas enters the furnace;
s2, calculating the heat value of the coal gas according to the coal gas components;
s3, calculating the physical heat of the gas according to the gas components and the temperature;
s4, calculating air physical heat according to the air temperature;
s5, calculating a proper air-fuel ratio coefficient according to the hot air temperature required by the process and the parameter values, and judging the combustion type;
s6, obtaining smoke components through the coal gas components and the air-fuel ratio coefficient;
s7, obtaining total combustion heat through a coal gas heat value, coal gas physical heat and air physical heat;
s8, according to the specific situation of the data, the following operations are carried out:
s81, under the condition that the air-fuel ratio coefficient is not changed, the combustion temperature calculated according to the monitored gas component or the gas supply flow is within the range of +/-15 ℃ of the required combustion temperature, and no adjustment is made;
s82, if the combustion temperature calculated according to the monitored air supply flow exceeds the range of the required combustion temperature plus or minus 15 ℃, which indicates that the air supply pressure fluctuation is large, automatically adjusting the valve opening of the air supply pipeline to maintain the air-fuel ratio of the combustion temperature;
s83, if the combustion temperature calculated according to the monitored gas components exceeds the required combustion temperature plus 15 ℃, the calculation software calculates a new air-fuel ratio coefficient, automatically adjusts the opening of a combustion air valve to meet the new air-fuel ratio requirement, and ensures that the combustion temperature is within the required temperature range;
s84, if the combustion temperature calculated according to the monitored coal gas components is lower than the required combustion temperature within the range of minus 15 ℃, the calculation software gives an alarm and prompts an operator whether to switch the high-heat-value coal gas or perform oxygen enrichment on combustion air;
s9, in the implementation process, the following operations are carried out according to the implementation progress:
s91, after confirming that the high heat value gas is switched, adjusting the high heat value gas as described in S81 or S82, and switching back when the original gas component meets the requirement of combustion temperature so as to reduce the production cost;
s92, when confirming the oxygen enrichment of the combustion air, the calculation software can calculate an oxygen enrichment degree meeting the combustion temperature requirement, then automatically open the valve of the oxygen supply pipeline and adjust the opening of the valve. If the original coal gas composition meets the requirement of combustion temperature, the valve of the oxygen supply pipeline can be closed and adjusted according to the conditions of S81 or S82, so that the production cost is reduced; if the composition of the gas fluctuates greatly again in the combustion state;
s93, when the calculated combustion temperature exceeds the range of the required combustion temperature plus 15 ℃, recalculating a value less than the previous oxygen enrichment degree and adjusting the opening of the oxygen supply pipeline valve;
and S94, when the calculated combustion temperature is lower than the required combustion temperature within the range of minus 15 ℃, recalculating a value larger than the previous oxygen enrichment degree and adjusting the opening of the oxygen supply pipeline valve.
(III) advantageous effects
The invention provides a front reaction type constant-temperature automatic burning technology of a hot blast stove. The method has the following beneficial effects: the 'front reaction' type constant-temperature automatic burning technology of the hot blast stove changes the 'rear reaction' type automatic burning technology which is commonly adopted at present into the 'front reaction' type constant-temperature automatic burning technology, cancels the 'self-learning' process in the 'rear reaction' type automatic burning technology and the limitation of depending on the experience level of operators during manual intervention and adjustment, ensures that the burning temperature of the hot blast stove can still ensure the constant-temperature burning within the range of +/-15 ℃ under the condition of large gas composition or gas supply pressure fluctuation, has continuous and stable wind temperature, ensures the working efficiency and reduces the requirements on the operators.
Drawings
FIG. 1 is a schematic diagram of a heating principle of a hot blast stove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a front reaction type constant temperature automatic burning technology of a hot blast stove comprises the following steps:
s1, monitoring all components of coal gas, coal gas temperature, coal gas flow, combustion air temperature and flow parameters in real time when the coal gas enters the furnace;
s2, calculating the heat value of the coal gas according to the coal gas components;
s3, calculating the physical heat of the gas according to the gas components and the temperature;
s4, calculating air physical heat according to the air temperature;
s5, calculating a proper air-fuel ratio coefficient according to the hot air temperature required by the process and the parameter values, and judging the combustion type;
s6, obtaining smoke components through the coal gas components and the air-fuel ratio coefficient;
s7, obtaining total combustion heat through a coal gas heat value, coal gas physical heat and air physical heat;
s8, according to the specific situation of the data, the following operations are carried out:
s81, under the condition that the air-fuel ratio coefficient is not changed, the combustion temperature calculated according to the monitored gas component or the gas supply flow is within the range of +/-15 ℃ of the required combustion temperature, and no adjustment is made;
s82, if the combustion temperature calculated according to the monitored air supply flow exceeds the range of the required combustion temperature plus or minus 15 ℃, which indicates that the air supply pressure fluctuation is large, automatically adjusting the valve opening of the air supply pipeline to maintain the air-fuel ratio of the combustion temperature;
s83, if the combustion temperature calculated according to the monitored gas components exceeds the required combustion temperature plus 15 ℃, the calculation software calculates a new air-fuel ratio coefficient, automatically adjusts the opening of a combustion air valve to meet the new air-fuel ratio requirement, and ensures that the combustion temperature is within the required temperature range;
s84, if the combustion temperature calculated according to the monitored coal gas components is lower than the required combustion temperature within the range of minus 15 ℃, the calculation software gives an alarm and prompts an operator whether to switch the high-heat-value coal gas or perform oxygen enrichment on combustion air;
s9, in the implementation process, the following operations are carried out according to the implementation progress:
s91, after confirming that the high heat value gas is switched, adjusting the high heat value gas as described in S81 or S82, and switching back when the original gas component meets the requirement of combustion temperature so as to reduce the production cost;
s92, when confirming the oxygen enrichment of the combustion air, the calculation software can calculate an oxygen enrichment degree meeting the combustion temperature requirement, then automatically open the valve of the oxygen supply pipeline and adjust the opening of the valve. If the original coal gas composition meets the requirement of combustion temperature, the valve of the oxygen supply pipeline can be closed and adjusted according to the conditions of S81 or S82, so that the production cost is reduced; if the composition of the gas fluctuates greatly again in the combustion state;
s93, when the calculated combustion temperature exceeds the range of the required combustion temperature plus 15 ℃, recalculating a value less than the previous oxygen enrichment degree and adjusting the opening of the oxygen supply pipeline valve;
and S94, when the calculated combustion temperature is lower than the required combustion temperature within the range of minus 15 ℃, recalculating a value larger than the previous oxygen enrichment degree and adjusting the opening of the oxygen supply pipeline valve.
In conclusion, the 'front reaction' type constant-temperature automatic burning technology of the hot blast stove changes the 'rear reaction' type automatic burning technology which is commonly adopted at present into the 'front reaction' type constant-temperature automatic burning technology, cancels the 'self-learning' process in the 'rear reaction' type automatic burning technology and the limitation of depending on the experience level of operators during manual intervention and adjustment, ensures that the burning temperature of the hot blast stove can still ensure the constant-temperature burning within the range of +/-15 ℃ under the condition of large gas composition or gas supply pressure fluctuation, has continuous and stable wind temperature, ensures the working efficiency and reduces the requirements for the operators.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a hot-blast furnace "preceding reaction" formula constant temperature automatic burning technology which characterized in that: the method comprises the following steps:
s1, monitoring all components of coal gas, coal gas temperature, coal gas flow, combustion air temperature and flow parameters in real time when the coal gas enters the furnace;
s2, calculating the heat value of the coal gas according to the coal gas components;
s3, calculating the physical heat of the gas according to the gas components and the temperature;
s4, calculating air physical heat according to the air temperature;
s5, calculating a proper air-fuel ratio coefficient according to the hot air temperature required by the process and the parameter values, and judging the combustion type;
s6, obtaining smoke components through the coal gas components and the air-fuel ratio coefficient;
s7, obtaining total combustion heat through a coal gas heat value, coal gas physical heat and air physical heat;
s8, according to the specific situation of the data, the following operations are carried out:
s81, under the condition that the air-fuel ratio coefficient is not changed, the combustion temperature calculated according to the monitored gas component or the gas supply flow is within the range of +/-15 ℃ of the required combustion temperature, and no adjustment is made;
s82, if the combustion temperature calculated according to the monitored air supply flow exceeds the range of the required combustion temperature plus or minus 15 ℃, which indicates that the air supply pressure fluctuation is large, automatically adjusting the valve opening of the air supply pipeline to maintain the air-fuel ratio of the combustion temperature;
s83, if the combustion temperature calculated according to the monitored gas components exceeds the required combustion temperature plus 15 ℃, the calculation software calculates a new air-fuel ratio coefficient, automatically adjusts the opening of a combustion air valve to meet the new air-fuel ratio requirement, and ensures that the combustion temperature is within the required temperature range;
s84, if the combustion temperature calculated according to the monitored coal gas components is lower than the required combustion temperature within the range of minus 15 ℃, the calculation software gives an alarm and prompts an operator whether to switch the high-heat-value coal gas or perform oxygen enrichment on combustion air;
s9, in the implementation process, the following operations are carried out according to the implementation progress:
s91, after confirming that the high heat value gas is switched, adjusting the high heat value gas as described in S81 or S82, and switching back when the original gas component meets the requirement of combustion temperature so as to reduce the production cost;
s92, when confirming the oxygen enrichment of the combustion air, the calculation software can calculate an oxygen enrichment degree meeting the combustion temperature requirement, then automatically open the valve of the oxygen supply pipeline and adjust the opening of the valve. If the original coal gas composition meets the requirement of combustion temperature, the valve of the oxygen supply pipeline can be closed and adjusted according to the conditions of S81 or S82, so that the production cost is reduced; if the composition of the gas fluctuates greatly again in the combustion state;
s93, when the calculated combustion temperature exceeds the range of the required combustion temperature plus 15 ℃, recalculating a value less than the previous oxygen enrichment degree and adjusting the opening of the oxygen supply pipeline valve;
and S94, when the calculated combustion temperature is lower than the required combustion temperature within the range of minus 15 ℃, recalculating a value larger than the previous oxygen enrichment degree and adjusting the opening of the oxygen supply pipeline valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011309858.8A CN112410490A (en) | 2020-11-20 | 2020-11-20 | Front reaction type constant temperature automatic burning technology for hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011309858.8A CN112410490A (en) | 2020-11-20 | 2020-11-20 | Front reaction type constant temperature automatic burning technology for hot-blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112410490A true CN112410490A (en) | 2021-02-26 |
Family
ID=74774260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011309858.8A Pending CN112410490A (en) | 2020-11-20 | 2020-11-20 | Front reaction type constant temperature automatic burning technology for hot-blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112410490A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55122811A (en) * | 1979-03-12 | 1980-09-20 | Nippon Steel Corp | Combustion control method of hot stove |
| JPH10245611A (en) * | 1997-03-07 | 1998-09-14 | Nippon Steel Corp | Hot stove control method |
| KR20030096974A (en) * | 2002-06-18 | 2003-12-31 | 주식회사 포스코 | Apparatus for controlling heat value of mixed gas of hot wind furnace of a blast furnace |
| CN101684944A (en) * | 2008-09-28 | 2010-03-31 | 宝山钢铁股份有限公司 | Self-optimizing combustion control method of blast-furnace hot blast stove |
| CN101892338A (en) * | 2010-07-22 | 2010-11-24 | 首钢总公司 | Constant air temperature control system for hot blast stove |
| JP2012184495A (en) * | 2011-03-08 | 2012-09-27 | Nippon Steel Corp | Device and method for estimating hot blast stove operation, and computer program |
| CN108458486A (en) * | 2018-04-13 | 2018-08-28 | 安徽工业大学 | A kind of Combustion of Hot Air Furnace automatic control system and its control method |
-
2020
- 2020-11-20 CN CN202011309858.8A patent/CN112410490A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55122811A (en) * | 1979-03-12 | 1980-09-20 | Nippon Steel Corp | Combustion control method of hot stove |
| JPH10245611A (en) * | 1997-03-07 | 1998-09-14 | Nippon Steel Corp | Hot stove control method |
| KR20030096974A (en) * | 2002-06-18 | 2003-12-31 | 주식회사 포스코 | Apparatus for controlling heat value of mixed gas of hot wind furnace of a blast furnace |
| CN101684944A (en) * | 2008-09-28 | 2010-03-31 | 宝山钢铁股份有限公司 | Self-optimizing combustion control method of blast-furnace hot blast stove |
| CN101892338A (en) * | 2010-07-22 | 2010-11-24 | 首钢总公司 | Constant air temperature control system for hot blast stove |
| JP2012184495A (en) * | 2011-03-08 | 2012-09-27 | Nippon Steel Corp | Device and method for estimating hot blast stove operation, and computer program |
| CN108458486A (en) * | 2018-04-13 | 2018-08-28 | 安徽工业大学 | A kind of Combustion of Hot Air Furnace automatic control system and its control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101892338B (en) | Constant wind temperature control system for hot blast stove | |
| CN104534505B (en) | Energy-saving and safe burning control system and method | |
| CN106011352B (en) | A kind of blast funnace hot blast stove gas flow Optimal Control System | |
| CN107490018B (en) | Heating furnace combustion control system with targeted CO as control variable and control method | |
| CN112665407B (en) | Hearth pressure control method for regenerative heating furnace | |
| CN107245570A (en) | A kind of cold rolled annealed stove heat combination control method | |
| CN110566962A (en) | Combustion control method of heat accumulating type single-burner aluminum melting furnace with adjustable air-fuel ratio | |
| CN110438331A (en) | A kind of heating furnace autocombustion system | |
| CN202494351U (en) | Detection and regulation system of ore-smelting electric furnace furnace-chamber pressure | |
| CN104075584B (en) | A kind of waste heat of flue gas of heating furnace recovered temperature controls System and method for | |
| CN109141051B (en) | Optimal design method for furnace pressure control of heat accumulating type industrial heating furnace | |
| CN113217944A (en) | Method for controlling oxygen-coal ratio of waste steel baking | |
| CN209944364U (en) | Automatic smoke abatement system of torch | |
| CN112410490A (en) | Front reaction type constant temperature automatic burning technology for hot-blast stove | |
| CN114317860A (en) | Combustion control method of heat accumulating type hot blast stove | |
| CN103593578A (en) | Flue suction force feedback setting method in coke oven heating combustion process | |
| CN114484496A (en) | Dynamic control method for nitrogen oxides and sulfur oxides in furnace | |
| CN114459260A (en) | Dynamic control method of nitrogen oxides and sulfur oxides in the furnace of pellet belt roaster | |
| CN106127351A (en) | A kind of blast funnace hot blast stove initially burns producer gas flow optimization system | |
| CN116428879A (en) | Control method and system for combustion optimization of heating furnace | |
| CN117515585A (en) | Power plant boiler air door regulation and control method | |
| CN100395352C (en) | Hot blast stove burning method | |
| CN109338094B (en) | Annealing furnace temperature and flue gas emission closed-loop control method | |
| CN101892366A (en) | Low oxygen content and low nitrogen consumption control system and method for radiant tube-heated non-oxidation roller hearth furnace | |
| CN206973609U (en) | A kind of targeting formula CO is the Burning Control System of Heating Furnace of control variable |
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 |
Application publication date: 20210226 |
|
| RJ01 | Rejection of invention patent application after publication |