CN110713851B - Automatic adjusting method for mixed heat value of three gases of blast furnace coke oven converter - Google Patents
Automatic adjusting method for mixed heat value of three gases of blast furnace coke oven converter Download PDFInfo
- Publication number
- CN110713851B CN110713851B CN201910952291.7A CN201910952291A CN110713851B CN 110713851 B CN110713851 B CN 110713851B CN 201910952291 A CN201910952291 A CN 201910952291A CN 110713851 B CN110713851 B CN 110713851B
- Authority
- CN
- China
- Prior art keywords
- converter
- value
- blast furnace
- set value
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K3/00—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide
- C10K3/06—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by mixing with gases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention provides an automatic regulating method of three coal gas mixed heat values of a blast furnace coke oven converter, which automatically regulates the coal gas amount of the blast furnace, a coke oven and the converter, thereby automatically regulating the heat values of the three mixed coal gas; the method comprises the following steps: 1) automatically adjusting the set value of the converter gas flow; 2) automatically adjusting the pressure set value of a second valve of the blast furnace so as to control the gas quantity of the converter and the blast furnace; 3) automatically adjusting the set value of the heat value of the coke oven gas. The converter regulating valve is added, and a PID regulating mode is adopted. The ratio control is adopted to fully automatically control the two-way valve of the blast furnace, the converter regulating valve and the set values of the four heat values, and the two-way valve of the coke oven is controlled in time. Thereby comprehensively controlling the mixing ratio of the coal gas amount of the blast furnace, the coke oven and the converter and stabilizing the heat value. The method can overcome the defect that the control of the heat value is judged wrongly due to the lagging of a heat value instrument, the fluctuation amount of the converter is large, the two-way valve pressure is set by manual operation, and the set values of a plurality of heat values are set.
Description
Technical Field
The invention relates to the technical field of coal gas mixing control, in particular to an automatic adjusting method for the mixed heat value of three kinds of coal gas of a blast furnace coke oven converter.
Background
As the main gas pressurizing stations of the steel mill of the iron and steel enterprise at present comprise blast furnace gas and coke oven gas, and the main gas pressurizing stations also participate in converter gas at present. In the actual production and use process, the fluctuation of the production capacity and the use amount and the large fluctuation of the recovery amount of the converter cause the great fluctuation of the heat value of the mixed gas of the blast furnace, the coke oven and the converter, and the theoretical air-fuel ratio of the mixed gas of the coke oven causes the volume flow of air and gas to be changed according to the proportion determined by the coefficient. The fluctuation of the gas heat value can change the theoretical air quantity, and the fluctuation of the actual air excess coefficient of the gas combustion in the furnace caused by the fluctuation of the gas heat value can not be compensated under the existing combustion control mode with fixed air and gas volume flow, so that the air-fuel ratio of the heating furnace is unreasonable: the low air-fuel ratio can cause low furnace temperature, long heating time of cold blank heating and low heating capacity of the heating furnace; and if the air-fuel ratio is large, the heat loss of the flue gas is large, and the unit combustion is high. The automatic control of the mixed heat value of a blast furnace, a coke oven and a converter is particularly important.
The automatic adjustment of the mixed heat value of three gases of a blast furnace, a coke oven and a converter has no disclosed technology at present. The mixed heat value of the existing blast furnace coke oven converter is adjusted manually mainly through a blast furnace head valve, a blast furnace secondary valve, a coke oven head valve and a coke oven secondary valve. The blast furnace head valve adopts manual regulation, the blast furnace secondary valve adopts respective PID regulation, and the coke furnace head valve and the coke furnace secondary valve adopt respective PID regulation. The adjusting process is that the pressure behind the second valve of the blast furnace is controlled by manually adjusting the pressure set value of the second valve of the blast furnace, so that the mixed flow of the blast furnace gas and the converter gas is controlled. And manually setting a mixed gas heat value set value, a blast furnace gas heat value set value, a coke oven gas heat value set value and a converter gas heat value set value according to the mixed heat value required by production. The set value of the gas flow of the second valve of the coke oven is controlled by calculating a heat value formula. Thereby controlling the mixing ratio of the three kinds of coal gas to control the heat value of the mixed coal gas. Because the on-line heat value meter has lag and the converter gas amount greatly fluctuates, the pressure of a second valve of the blast furnace and the set values of the four heat values are manually set by taking the detection value of the mixed heat value as a reference, so that a judgment error exists and the workload of manual adjustment is increased, the heat value is influenced, and the production stop is easily caused.
Disclosure of Invention
In order to overcome the defect that the control of the heat value is judged wrongly due to the fact that a heat value instrument lags, the fluctuation amount of a converter is large, two valve pressures are set through manual operation and the set values of a plurality of heat values are set in the prior art. The workload of manual adjustment is reduced, and the possibility of production halt caused by unstable heat value is eliminated. The invention provides an automatic regulating method of three coal gas mixed heat values of a blast furnace coke oven converter, which adopts a PID regulating mode by additionally arranging a converter regulating valve. The ratio control is adopted to fully automatically control the two valves of the blast furnace, the converter regulating valve and the set values of four heat values (the set values of the heat values of three gases of the blast furnace, the coke oven and the converter and the set value of the heat value of mixed gas), and the two valves of the coke oven are controlled in time. Thereby comprehensively controlling the mixing ratio of the coal gas amount of the blast furnace, the coke oven and the converter and stabilizing the heat value.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for automatically adjusting the mixed heat value of three gases of a blast furnace coke oven converter is characterized in that the gas amounts of the blast furnace, a coke oven and the converter are automatically adjusted, so that the heat values of the three mixed gases are automatically adjusted; the method comprises the following steps:
1) automatically adjusting the set value of the converter gas flow;
2) automatically adjusting the pressure set value of a second valve of the blast furnace so as to control the gas quantity of the converter and the blast furnace;
3) automatically adjusting the set value of the heat value of the coke oven gas.
The set value for automatically adjusting the converter gas flow is a set value for setting the converter gas flow in sections according to the sum of the converter gas tank levels; and a converter flow regulating valve is added, PID control is adopted, and PID parameters are reasonably regulated according to the stability requirement and the responsiveness requirement of the system. And increasing the cabinet position of each converter, and automatically setting the set value of the converter flow regulating valve in a sectional manner according to the value sum of the cabinet positions of the converters.
The automatic adjustment of the pressure set value of the second valve of the blast furnace is to set the pressure set value of the second valve of the blast furnace in a segmented delay manner through the actual average flow value of the converter, so as to control the gas quantity of the converter and the blast furnace.
The automatically adjusted coke oven gas heat value set value is as follows: increasing the ratio set values of the coke oven gas in the blast furnace coke oven and the converter, automatically setting the blast furnace gas heat value set value and the converter gas heat value set value, setting the mixed gas heat value set value according to the user requirement, circularly detecting and automatically modifying the coke oven gas heat value set value according to the actual ratio value and the set ratio value, calculating the gas flow set value of the second valve of the coke oven through a heat value formula, controlling the opening of the second valve of the coke oven to control the gas flow of the coke oven, and automatically modifying the ratio set value according to the steel feeding and the converter quantity.
Compared with the prior art, the invention has the beneficial effects that:
1. the existing blast furnace, coke oven and converter gas mixed heat value increases the labor intensity of operators due to the complex manual operation, is difficult to ensure the smooth production, and the fluctuation of the heat value influences the quality of rolled steel. The invention can stably control the heat value by fully automatically adjusting the mixed value of three gases of a blast furnace, a coke oven and a converter. The workload of manual adjustment is reduced, the heat value is more stable, the possibility of production halt caused by unstable heat value is eliminated, the problem of controlling the stability of the heat value by full-automatic adjustment can be solved, the smooth production is ensured, and the heat value is stabilized.
2. The present invention uses a core control of ratio automation. According to the automatic adjustment of the set ratio, the ratio of the mixing amount of the blast furnace, the coke oven and the converter and the stability and the transition of the pressure are further controlled, and the stability of the mixed heat value is controlled. Thereby improving the production quality.
Detailed Description
The following describes in detail specific embodiments of the present invention.
A method for automatically adjusting the mixed heat value of three gases of a blast furnace coke oven converter is characterized in that the gas amounts of the blast furnace, a coke oven and the converter are automatically adjusted, so that the heat values of the three mixed gases are automatically adjusted; the method comprises the following steps:
1) automatically adjusting the set value of the converter gas flow;
2) automatically adjusting the pressure set value of a second valve of the blast furnace so as to control the gas quantity of the converter and the blast furnace;
3) automatically adjusting the set value of the heat value of the coke oven gas.
The set value for automatically adjusting the converter gas flow is a set value for setting the converter gas flow in sections by adjusting the sum of the converter gas tank levels; and a converter flow regulating valve is added, PID control is adopted, and PID parameters are reasonably regulated according to the stability requirement and the responsiveness requirement of the system. And increasing the cabinet position of each converter, and automatically setting the set value of the converter flow regulating valve in a sectional manner according to the value sum of the cabinet positions of the converters.
The specific embodiment is as follows:
setting the set value of the gas flow to be 0 when the tank level sum value is between 0 and 10 meters, closing the converter regulating valve, and opening the converter regulating valve when the tank level sum value is between 10 and 12 meters and contains 10 meters:
the sum of the tank positions is between [10, 12) meters, and the setting quantity of the converter regulating valve is 1 ten thousand m 3/h;
the sum of the tank positions is between [12, 14) meters, and the setting quantity of the converter regulating valve is 2 ten thousand m 3/h;
the sum of the tank positions is between [14, 16) meters, and the setting quantity of the converter regulating valve is 3 ten thousand meters 3/h;
the sum of the tank positions is between [16, 18) meters, and the setting quantity of the converter regulating valve is 4 ten thousand m 3/h;
the sum of the tank positions is between [18, 20) meters, and the setting quantity of the converter regulating valve is 5 ten thousand m 3/h;
the sum of the tank positions is between [20, 25) meters, and the setting quantity of the converter regulating valve is 6 ten thousand m 3/h;
the sum of the tank positions is between [25, 30 ] m, and the setting quantity of a converter regulating valve is 9 ten thousand m 3/h;
when the sum of the tank levels is more than 30 meters and includes 30 meters, the setting amount of the converter regulating valve is 12 ten thousand meters 3/h;
the above-mentioned set value of the converter level is determined based on the actual capacity of the converter (set value of the converter regulating valve). According to the capacity of the converter, the cabinet position and the set converter amount (set converter regulating valve amount) in the number of meters are determined according to the corresponding ratio, and the method is suitable for various converters and is universal for multiple systems.
The cabinet position sum value is the sum of the cabinet position values of all converters, and the value is detected once every 3s, and the average value is obtained twice.
The automatic adjustment of the pressure set value of the second valve of the blast furnace is to set the pressure set value of the second valve of the blast furnace in a segmented delay manner through the actual average flow value of the converter, so as to control the gas quantity of the converter and the blast furnace.
The specific embodiment is as follows:
when the sum value of the converter gas tank level is below 10m and the opening of the valve is less than 5%, setting the pressure delay of the second valve of the blast furnace to be 2.0+/-0.5KPa for 1 s;
when the actual average flow of the converter is below 3.5 ten thousand m3/h, the pressure set value of the second valve of the blast furnace is modified to 1.5+/-0.5KPa after 1S delay;
when the actual average flow of the converter is between [3.5, 5.5) ten thousand meters 3/h, the pressure set value of the second valve of the blast furnace is modified to 1.0+/-0.5KPa after delaying for 1S;
when the actual average flow of the converter is between [5.5, 6.5) ten thousand meters 3/h, the pressure set value of the second valve of the blast furnace is modified to be 0.5+/-0.5KPa after delaying for 1S;
the actual average flow of the converter is 6.5 ten thousand and comprises more than 6.5 ten thousand m3/h, and the pressure set value of the second valve of the blast furnace is modified to be 0.2+/-0.5KPa after delaying for 1S;
the actual average flow of the converter is detected once every 2s, and the average value of the two times is made.
The automatically adjusted coke oven gas heat value set value is as follows: the method comprises the steps of increasing the ratio set values of coke oven gas to blast furnace coke oven gas and converter gas, automatically setting the blast furnace gas heat value set value and the converter gas heat value set value, setting the mixed gas heat value set value according to user requirements, circularly detecting and automatically modifying the coke oven gas heat value set value according to an actual ratio value and the set ratio value, calculating the gas flow set value of a second valve of the coke oven through a heat value formula, controlling the gas flow of the coke oven by controlling the opening of the second valve of the coke oven, and automatically modifying the ratio set value according to the steel feeding and the converter quantity.
The specific embodiment is as follows:
the ratio is automatically adjusted to be detected once every 7S, the set ratio is compared with the actual ratio, the difference value is more than or equal to 0.01, the coke oven heat value set value is automatically reduced by 0.2, the difference value between the actual ratio and the set ratio is more than or equal to 0.01, and the coke oven heat value set value is automatically increased by 0.2 so as to control a two-way valve of the coke oven. And automatically adjusting the set value of the ratio according to the sum of the two converter tank positions and the steel feeding and rolling quantity.
The project is successfully applied to a gas pressurizing station of Spanish mackerel ring division companies of the Anemarrhena sadica group, and is tested and operated. The method is put into operation and has the following specific implementation processes:
firstly, a heat value adjusting process:
1. the interlocking regulating valve comprises: a converter regulating valve, a coke oven secondary valve and a blast furnace secondary valve.
2. Adding HMI content as follows: ratio set point, select ratio button, cut converter button, cut pressure button.
3. Adjusting the process flow: and setting the converter flow according to the sum of the tank positions of the two converters, and controlling the converter flow regulating valve. And setting a pressure set value of a second valve of the blast furnace according to the actual flow of the converter, and controlling the second valve of the blast furnace. The coke oven secondary valve is controlled according to the ratio set value.
II, operating steps:
1. manual and manual regulation of stable heat value
2. Setting ratio set value
3. Automatic selection of converter flow control valve
4. And clicking a ratio selection button on the HMI picture, and inputting the linkage to fully automatically control a converter regulating valve, a blast furnace secondary valve and a coke oven secondary valve.
5. If the converter regulating valve does not want to enter the full-automatic interlocking control, a converter switching button on the HMI picture is clicked, the button is changed into a color, the converter does not participate in the full-automatic interlocking, and the control must be carried out manually. If the full-automatic linkage is required to be put into, a button for cutting the converter is clicked. The button is changed into another color to indicate that the converter regulating valve participates in the full-automatic interlocking control.
6. If the second valve of the blast furnace does not want to enter the full-automatic interlocking control, the pressure-cutting button on the HMI picture is clicked, the button is changed into a color, which indicates that the second valve of the blast furnace does not participate in the full-automatic interlocking and needs to be manually controlled. If the full-automatic interlocking is required to be put into, the pressure-cutting button is clicked, the button is changed into another color, and the fact that the second valve of the blast furnace participates in the full-automatic interlocking control is indicated.
Third, interlock control set value
1. Setting the set value of the gas flow to be 0 when the tank level sum value is between 0 and 10 meters, closing the converter regulating valve, and opening the converter regulating valve when the tank level sum value is between 10 and 12 meters and contains 10 meters:
the sum of the tank positions is between [10, 12) meters, and the setting quantity of the converter regulating valve is 1 ten thousand m 3/h;
the sum of the tank positions is between [12, 14) meters, and the setting quantity of the converter regulating valve is 2 ten thousand m 3/h;
the sum of the tank positions is between [14, 16) meters, and the setting quantity of the converter regulating valve is 3 ten thousand meters 3/h;
the sum of the tank positions is between [16, 18) meters, and the setting quantity of the converter regulating valve is 4 ten thousand m 3/h;
the sum of the tank positions is between [18, 20) meters, and the setting quantity of the converter regulating valve is 5 ten thousand m 3/h;
the sum of the tank positions is between [20, 25) meters, and the setting quantity of the converter regulating valve is 6 ten thousand m 3/h;
the sum of the tank positions is between [25, 30 ] m, and the setting quantity of a converter regulating valve is 9 ten thousand m 3/h;
when the sum of the tank levels is more than 30 meters and includes 30 meters, the setting amount of the converter regulating valve is 12 ten thousand meters 3/h;
the cabinet position sum value is the sum of the cabinet position values of all converters, and the value is detected once every 3s, and the average value is obtained twice.
2. When the sum value of the converter gas tank level is below 10m and the opening of the valve is less than 5%, setting the pressure delay of the second valve of the blast furnace to be 2.0+/-0.5KPa for 1 s;
when the actual average flow of the converter is below 3.5 ten thousand m3/h, the pressure set value of the second valve of the blast furnace is modified to 1.5+/-0.5KPa after 1S delay;
when the actual average flow of the converter is between [3.5, 5.5) ten thousand meters 3/h, the pressure set value of the second valve of the blast furnace is modified to 1.0+/-0.5KPa after delaying for 1S;
when the actual average flow of the converter is between [5.5, 6.5) ten thousand meters 3/h, the pressure set value of the second valve of the blast furnace is modified to be 0.5+/-0.5KPa after delaying for 1S;
the actual average flow of the converter is 6.5 ten thousand and comprises more than 6.5 ten thousand m3/h, and the pressure set value of the second valve of the blast furnace is modified to be 0.2+/-0.5KPa after delaying for 1S;
the actual average flow of the converter is detected once every 2s, and the average value of the two times is made.
3. The ratio is automatically adjusted to be detected once every 7S, the set ratio is compared with the actual ratio, the difference value is more than or equal to 0.01, the coke oven heat value set value is automatically reduced by 0.2, the difference value between the actual ratio and the set ratio is more than or equal to 0.01, and the coke oven heat value set value is automatically increased by 0.2 so as to control a two-way valve of the coke oven.
4. When the ratio selection button is put in, the blast furnace heat value setting is automatically set to 3.4. The converter heating value setting is automatically set to 5.3. The mixed heat value is manually set according to the process requirements. The coke oven gas heat value set value is adjusted on the basis of manual adjustment.
5. When the sum of the cabinet positions is less than 12m, the ratio set value is automatically increased, the delay time 1S is increased by 0.01, the delay time 4S is increased by 0.01, and the delay time 5S is increased by 0.01. When the cabinet position sum is larger than 12.5 meters, the ratio set value is automatically reduced, the delay 1S is reduced by 0.01, the delay 4S is reduced by 0.01, and the delay 5S is reduced by 0.01.
6. The PID parameter of the two valves of the blast furnace is Kp which is 0.85Ki which is 0.1Kd which is 0.0. The original parameter Kp ═ 1.2Ki ═ 0.1Kd ═ 0.0.
7. The PID parameter of the converter regulating valve is Kp ═ 0.38Ki ═ 0.03Kd ═ 0.75.
8. When the steel feeding and rolling quantity is more than 19 ten thousand, the converter gas is more than 9 ten thousand, the set value of the ratio is automatically increased by 0.01, and the set value of the ratio is automatically decreased by 0.01 when the steel feeding and rolling quantity is less than 9 ten thousand.
The above embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the above embodiments. The methods used in the above examples are conventional methods unless otherwise specified.
Claims (2)
1. The automatic regulating method of the mixed heat value of three kinds of coal gas of a blast furnace coke oven converter is characterized in that the method is used for automatically regulating the coal gas amount of the blast furnace, the coke oven and the converter so as to automatically regulate the heat value of the three kinds of mixed coal gas; the method comprises the following steps:
1) automatically adjusting the set value of the converter gas flow;
2) automatically adjusting the pressure set value of a second valve of the blast furnace;
3) automatically adjusting the set value of the heat value of the coke oven gas;
the set value for automatically adjusting the converter gas flow is a set value for setting the converter gas flow in sections according to the sum of the converter gas tank levels; setting a converter flow regulating valve, setting a cabinet position of each converter by adopting PID control, and automatically setting a set value of the converter flow regulating valve in a segmented manner according to the cabinet position and the value of each converter;
setting the set value of the gas flow to be 0 when the tank level sum value is between 0 and 10 meters, closing the converter regulating valve, and opening the converter regulating valve when the tank level sum value is between 10 and 12 meters and contains 10 meters:
the sum of the tank positions is between [10, 12) meters, and the setting quantity of the converter regulating valve is 1 ten thousand m 3/h;
the sum of the tank positions is between [12, 14) meters, and the setting quantity of the converter regulating valve is 2 ten thousand m 3/h;
the sum of the tank positions is between [14, 16) meters, and the setting quantity of the converter regulating valve is 3 ten thousand meters 3/h;
the sum of the tank positions is between [16, 18) meters, and the setting quantity of the converter regulating valve is 4 ten thousand m 3/h;
the sum of the tank positions is between [18, 20) meters, and the setting quantity of the converter regulating valve is 5 ten thousand m 3/h;
the sum of the tank positions is between [20, 25) meters, and the setting quantity of the converter regulating valve is 6 ten thousand m 3/h;
the sum of the tank positions is between [25, 30 ] m, and the setting quantity of a converter regulating valve is 9 ten thousand m 3/h;
when the sum of the tank levels is more than 30 meters and includes 30 meters, the setting amount of the converter regulating valve is 12 ten thousand meters 3/h;
the cabinet position sum value is the sum of the cabinet position values of all converters, and the value is detected once every 3s, and the average value is obtained twice;
the pressure set value of the second valve of the blast furnace is automatically adjusted, namely the pressure set value of the second valve of the blast furnace is set in a segmented delay manner through the actual average flow value of the converter, so that the gas quantity of the converter and the blast furnace is controlled;
when the sum value of the converter gas tank level is below 10m and the opening of the valve is less than 5%, setting the pressure delay of the second valve of the blast furnace to be 2.0+/-0.5KPa for 1 s;
when the actual average flow of the converter is below 3.5 ten thousand m3/h, the pressure set value of the second valve of the blast furnace is modified to 1.5+/-0.5KPa after 1S delay;
when the actual average flow of the converter is between [3.5, 5.5) ten thousand meters 3/h, the pressure set value of the second valve of the blast furnace is modified to 1.0+/-0.5KPa after delaying for 1S;
when the actual average flow of the converter is between [5.5, 6.5) ten thousand meters 3/h, the pressure set value of the second valve of the blast furnace is modified to be 0.5+/-0.5KPa after delaying for 1S;
the actual average flow of the converter is 6.5 ten thousand and comprises more than 6.5 ten thousand m3/h, and the pressure set value of the second valve of the blast furnace is modified to be 0.2+/-0.5KPa after delaying for 1S;
the actual average flow of the converter is detected once every 2s, and the average value of the two times is made.
2. The automatic adjusting method for the mixed heat value of the three gases of the blast furnace coke oven converter according to claim 1, wherein the automatically adjusted coke oven gas heat value set value is as follows: setting the ratio set value of the coke oven gas to the blast furnace coke oven gas and the converter gas, automatically setting the blast furnace gas heat value set value and the converter gas heat value set value, setting the mixed gas heat value set value according to the user requirement, and circularly detecting and automatically modifying the coke oven gas heat value set value according to the actual ratio value and the set ratio value, thereby controlling the coke oven gas volume by controlling the opening degree of a second valve of the coke oven, and automatically modifying the ratio set value according to the steel feeding and rolling and the converter volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910952291.7A CN110713851B (en) | 2019-10-09 | 2019-10-09 | Automatic adjusting method for mixed heat value of three gases of blast furnace coke oven converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910952291.7A CN110713851B (en) | 2019-10-09 | 2019-10-09 | Automatic adjusting method for mixed heat value of three gases of blast furnace coke oven converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110713851A CN110713851A (en) | 2020-01-21 |
| CN110713851B true CN110713851B (en) | 2021-06-22 |
Family
ID=69212347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910952291.7A Active CN110713851B (en) | 2019-10-09 | 2019-10-09 | Automatic adjusting method for mixed heat value of three gases of blast furnace coke oven converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110713851B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288297B (en) * | 2020-02-12 | 2021-12-21 | 首钢集团有限公司 | Coal gas hybrid system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2121402A1 (en) * | 1971-04-30 | 1972-11-02 | Shell Internationale Research Maatschappij N.V., Den Haag (Niederlande) | Process for the production of fuel gas from liquefied hydrocarbon gases |
| US3959972A (en) * | 1974-05-30 | 1976-06-01 | Metallgesellschaft Aktiengesellschaft | Power plant process |
| CN101109952A (en) * | 2007-08-23 | 2008-01-23 | 济南钢铁集团总公司 | Real-time control method for coal gas dynamic balancing in steel plants based on cabinet position prediction |
| JP2012025900A (en) * | 2010-07-27 | 2012-02-09 | Jfe Steel Corp | Coke oven gas desulfurizer |
| CN106547254A (en) * | 2015-09-17 | 2017-03-29 | 鞍钢股份有限公司 | A kind of balance of integrated iron and steel works' coal gas, dispatching method and system |
| CN108388278A (en) * | 2018-04-04 | 2018-08-10 | 东北大学 | A kind of various kinds of coal gas mixed method and system based on multivariable decoupling |
| CN108592079A (en) * | 2018-03-30 | 2018-09-28 | 新疆八钢铁股份有限公司 | The simplified control method of various gas mixing automatic adjustment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482732A (en) * | 2008-01-08 | 2009-07-15 | 鞍钢股份有限公司 | Mixed gas calorific value stabilization control method |
-
2019
- 2019-10-09 CN CN201910952291.7A patent/CN110713851B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2121402A1 (en) * | 1971-04-30 | 1972-11-02 | Shell Internationale Research Maatschappij N.V., Den Haag (Niederlande) | Process for the production of fuel gas from liquefied hydrocarbon gases |
| US3959972A (en) * | 1974-05-30 | 1976-06-01 | Metallgesellschaft Aktiengesellschaft | Power plant process |
| CN101109952A (en) * | 2007-08-23 | 2008-01-23 | 济南钢铁集团总公司 | Real-time control method for coal gas dynamic balancing in steel plants based on cabinet position prediction |
| JP2012025900A (en) * | 2010-07-27 | 2012-02-09 | Jfe Steel Corp | Coke oven gas desulfurizer |
| CN106547254A (en) * | 2015-09-17 | 2017-03-29 | 鞍钢股份有限公司 | A kind of balance of integrated iron and steel works' coal gas, dispatching method and system |
| CN108592079A (en) * | 2018-03-30 | 2018-09-28 | 新疆八钢铁股份有限公司 | The simplified control method of various gas mixing automatic adjustment |
| CN108388278A (en) * | 2018-04-04 | 2018-08-10 | 东北大学 | A kind of various kinds of coal gas mixed method and system based on multivariable decoupling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110713851A (en) | 2020-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102364252B (en) | Automatic intelligent double cross limiting range combustion control method for heating furnace | |
| US4576570A (en) | Automatic combustion control apparatus and method | |
| CN108388278B (en) | Multi-variable decoupling-based multi-gas mixing method and system | |
| CN109307437B (en) | Optimized combustion control system and method for heat accumulating type industrial heating furnace | |
| CN110260356B (en) | Energy-saving control method of fluidized bed boiler | |
| CN101482732A (en) | Mixed gas calorific value stabilization control method | |
| CN111306572B (en) | Intelligent combustion optimizing energy-saving control system for boiler | |
| CN110713851B (en) | Automatic adjusting method for mixed heat value of three gases of blast furnace coke oven converter | |
| CN112859961B (en) | Heating furnace and control method and control system for temperature of heating furnace | |
| CN105955020A (en) | Coal water slurry gasification process DMC-PID multivariable control method | |
| CN104232846B (en) | A kind of system and method to RH refining furnace steam supply | |
| CN112648029A (en) | Coordinated control optimization method for deep peak regulation working condition of thermal power plant | |
| CN115419478A (en) | Optimized control method for steel mill gas power generation | |
| CN111045321A (en) | Method for coordinately controlling embedded internal model controller under deep peak regulation | |
| CN104561514B (en) | Double heat accumulating type steel rolling heating furnace oxidizing atmosphere adjustment method and automatic control method thereof | |
| CN106011353A (en) | Self-optimization method for air-fuel ratio of blast-furnace hot blast stove | |
| CN113390099A (en) | Coordination control method under coal-fired cogeneration unit self-adaptive BTU | |
| CN204369760U (en) | A kind of annular lime kiln firing system | |
| CN101603627A (en) | A kind of automatic switching and adjustment method for big and small pipes of coal gas mixing station | |
| CN108504816B (en) | Method for controlling oxygen blowing in converter top blowing process | |
| CN116428879A (en) | Control method and system for combustion optimization of heating furnace | |
| CN205670267U (en) | Coal gas of converter and natural gas mixed control apparatus | |
| CN111998383B (en) | Over-fire air control method based on boiler load and flame central point coordinate quantification | |
| CN113485499A (en) | Coal feeding regulation and control method for coal quality working condition change | |
| Van Hoof et al. | Application of a constrained multi-variable controller to a hydrogen plant |
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 |