CN114891944B - Method for rapidly treating disintegrating materials by combining blast furnace control system with blast furnace trial rod - Google Patents
Method for rapidly treating disintegrating materials by combining blast furnace control system with blast furnace trial rod Download PDFInfo
- Publication number
- CN114891944B CN114891944B CN202210738824.3A CN202210738824A CN114891944B CN 114891944 B CN114891944 B CN 114891944B CN 202210738824 A CN202210738824 A CN 202210738824A CN 114891944 B CN114891944 B CN 114891944B
- Authority
- CN
- China
- Prior art keywords
- value
- blast furnace
- actual measurement
- distribution angle
- line
- 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
- 239000000463 material Substances 0.000 title claims abstract description 179
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 50
- 238000012545 processing Methods 0.000 claims abstract description 6
- 239000000571 coke Substances 0.000 claims description 13
- 238000005070 sampling Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 230000000246 remedial effect Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000000109 continuous material Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/006—Automatically controlling the process
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Abstract
A method for rapidly processing disintegrating materials by combining a blast furnace control system with a blast furnace trial rod comprises the following steps: 1) Connecting a blast furnace trial rod with a blast furnace control system in a signal manner, establishing a distribution angle compensation value database, and setting a material line set value and a material collapse critical value; 2) Obtaining a material line actual measurement value and comparing the material line set value; 2-1) when the actual measurement value of the material line is higher than the set value of the material line, according to the difference value between the actual measurement value of the material line and the set value of the material line, a material distribution angle compensation value corresponding to the difference value is called, and the material distribution angle of the next batch of materials is regulated; 2-2) when the actual measurement value of the material line is not higher than the set value of the material line: (1) if the absolute value of the difference value of the actual measurement values of the material lines in two adjacent times is smaller than the material collapse critical value, the material distribution angle of the next batch of materials is not adjusted; (2) and if the absolute value of the difference value of the actual measurement values of the material lines in two adjacent times is more than or equal to the material collapse critical value, according to the difference value of the actual measurement values of the material lines and the material line set value, a material distribution angle compensation value corresponding to the difference value is called, and the material distribution angle of the next batch of materials is regulated.
Description
Technical Field
The invention relates to the field of blast furnace ironmaking, in particular to a method for rapidly processing disintegrating materials by combining a blast furnace control system with a blast furnace stock rod.
Background
The blast furnace stock rod is a measuring element for a blast furnace, monitors the material level in the blast furnace in the iron-making production process, controls a winch of the blast furnace stock rod through a frequency converter when the existing blast furnace stock rod works, reduces gravity after a heavy hammer of the blast furnace stock rod contacts materials in the blast furnace, suddenly reduces motor current, and displays the descending height of the heavy hammer after a detection circuit of the blast furnace stock rod detects the condition, and the position of the depth of a stock line in the blast furnace is generally determined by observing the value displayed by the blast furnace stock rod through naked eyes.
If the stock line depth of the blast furnace stock rod is monitored to be greatly increased, the phenomenon of material collapse is most likely to occur in the blast furnace. Once the material collapse phenomenon occurs, the next batch of material is distributed by resetting the material distribution angle through a blast furnace control system in a manual mode at present. However, the time required for visual recognition and monitoring and manual resetting of the remedial mode of the fabric angle is relatively long, and when the remedial mode is not available, continuous material breakage occurs, which causes serious production accidents. How to prevent the blast furnace from being broken and to rapidly implement the remedy is always a problem which is hoped to be solved in the smelting field.
Disclosure of Invention
The invention aims to provide a method for rapidly processing material collapse by combining a blast furnace control system with a blast furnace stock rod, wherein a material distribution angle compensation value database is preset in the blast furnace control system according to long-term production experience, and the blast furnace control system is combined with the blast furnace stock rod, so that the blast furnace control system can predict the material collapse condition of a blast furnace according to the actual measurement value of the blast furnace stock rod to a material line, and timely adjust the corresponding compensation value in the material distribution angle compensation value database to compensate and adjust the material distribution angle, thereby preventing the blast furnace from entering the material collapse state, ensuring that the blast furnace can perform safe production according to the original plan, and saving time and labor.
The invention is realized by adopting the following scheme: a method for rapidly processing disintegrating materials by combining a blast furnace control system with a blast furnace trial rod comprises the following steps:
1) The controller of the blast furnace trial rod is connected with a blast furnace control system in a signal way, a distribution angle compensation value database is established in the blast furnace control system, and a material line set value and a material collapse critical value are set in the blast furnace control system;
2) The blast furnace control system acquires a stockline actual measurement value through a blast furnace stock rod and compares the stockline actual measurement value with a stockline set value:
2-1) when the actual measurement value of the material line is higher than the set value of the material line, the blast furnace control system enters a material distribution angle compensation stage, and according to the difference value between the actual measurement value of the material line and the set value of the material line, a material distribution angle compensation value corresponding to the difference value is called from a material distribution angle compensation value database, and the material distribution angle of the next batch of materials is adjusted;
2-2) when the actual measurement value of the material line is not higher than the set value of the material line, taking the absolute value of the difference value of the actual measurement values of the material line of two adjacent times in one sampling period of the blast furnace stock rod, and comparing the absolute value with the critical value of the material collapse:
(1) if the absolute value of the difference value of the actual measurement values of the material lines in two adjacent times is smaller than the material collapse critical value, the material distribution angle of the next batch of materials is not adjusted;
(2) if the absolute value of the difference value of the actual measurement values of the material lines in two adjacent times is more than or equal to the material collapse critical value, the blast furnace control system enters a material distribution angle compensation stage, and according to the difference value of the actual measurement values of the material lines and the material line set value at the moment, a material distribution angle compensation value corresponding to the difference value is called from a material distribution angle compensation value database, and the material distribution angle of the next batch of materials is adjusted.
Preferably, the cloth angle compensation value database includes a difference value between the actual measurement value of the material line and the set value of the material line, and a cloth angle compensation value corresponding to the difference value.
Preferably, the stockline setpoint comprises a coke stockline setpoint and an ore stockline setpoint.
In practical application, if the material in the current batch is coke, the actual measurement value L of the stock line and the set value L of the coke stock line are adopted Coke Comparing, and taking a first material distribution angle compensation value corresponding to the difference value in the database according to the obtained difference value to adjust the material distribution angle of the next batch of materials; if the material in the current distribution batch is ore, adopting a stock line actual measurement value L and an ore stock line set value L Ore ore And comparing, and taking a second distribution angle compensation value corresponding to the difference value in the database according to the obtained difference value to adjust the distribution angle of the next batch of materials.
The corresponding relation between the difference value between the actual measurement value of the material line and the set value of the material line in the material distribution angle compensation value database and the material distribution angle compensation value is shown in table 1:
TABLE 1
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
As shown in fig. 1, a method for rapidly processing disintegrating materials by combining a blast furnace control system with a blast furnace stock rod comprises the following steps:
1) The controller of the blast furnace trial rod is connected with a blast furnace control system through signals, a worker establishes a distribution angle compensation value database in the blast furnace control system according to experience, a material line set value is set through an operation interface of the blast furnace control system, and a material collapse critical value is K.
Generally according to the requirements of furnace type and material distribution, the coke line set value L Coke With the ore material line set point L Ore ore Not necessarily equal, in this embodiment, the stockline setpoint comprises a coke stockline setpoint L Coke With the ore material line set point L Ore ore The sampling period of the blast furnace trial rod is 1 second, and the material collapse threshold K is 2 cm.
The distribution angle compensation value database comprises the difference value between the actual measurement value L of the material line and the set value of the material line, and the distribution angle compensation value corresponding to the difference value, the corresponding relationship between the two is shown in table 2, in this embodiment, the first and second distribution angle compensation values corresponding to the same difference range are the same, the first and second distribution angle compensation values, the set value L of the material line Coke Setting value L of ore material line Ore ore All are empirical values.
TABLE 2
2) The blast furnace control system is collected through a blast furnace stock rodObtaining a stock line actual measurement value L at the time t t Comparing with a setting value of a material line:
2-1) line actual measurement value L at time t t When the temperature is higher than the setting value of the material line, the blast furnace control system enters a material distribution angle compensation stage, and the actual measurement value L of the material line at the moment t is calculated t The difference value between the material line setting value and the material line setting value, and then a material distribution angle compensation value corresponding to the difference value is called from a material distribution angle compensation value database, and the material distribution angle of the next batch of materials is adjusted;
for example, when the current batch is coke, L t ＞L Coke When the blast furnace control system enters a material distribution angle compensation stage, a material line actual measurement value L at the moment t is calculated according to the following formula t With coke line set point L Coke Is the difference L of (2) Coke-difference ：
L Coke-difference ＝L t -L Coke
Wherein L is Coke-difference L is the difference between the actual measurement value of the material line at time t and the set value of the coke material line t Is the actual measurement value of the material line at the time t, L Coke Set point for coke line.
In the embodiment, the coke line set value is 40cm, if the blast furnace control system acquires the actual line value L at the time t through the blast furnace trial rod t 90cm, L Coke-difference 50cm.
According to the correspondence shown in Table 2, when L Coke-difference E [40, 90), the distribution angle of the next batch of materials is adjusted according to the corresponding first distribution angle compensation value, namely, the distribution angle of the next batch of materials is reduced by 1 degree.
2-2) line actual measurement value L at time t t When the value is not higher than the set value of the material line, the absolute value of the difference value of the actual measurement values of the material line of two adjacent times is taken from one sampling period of the blast furnace stock rod, and is compared with the material collapse critical value K:
in this embodiment, the actual measurement value of the line at the time (t+n) is L t+n And (t+n-1) the actual measurement value of the line at time L t+n-1 。
(1) If |L t+n-1 -L t+n When I < K, then notAnd adjusting the distribution angle of the next batch of materials.
(2) If |L t+n-1 -L t+n When the I is not less than K, the blast furnace control system enters a material distribution angle compensation stage, and the actual measurement value L of the material line at the moment (t+n) is obtained t+n And a difference value between the material line setting value and the material line setting value, and a material distribution angle compensation value corresponding to the difference value is called from a material distribution angle compensation value database to adjust the material distribution angle of the next batch of materials.
For example, the current batch is ore, when L t ≤L Ore ore And then the absolute value of the difference value of the actual measurement values of the material lines of two adjacent times is taken from one sampling period of the blast furnace stock rod, and is compared with the material collapse critical value K:
in this example, k=2cm, l Ore ore =40 cm, sampling period 1s, assuming L t Line measurement value L at time t of 30cm t Not higher than the ore material line set value L Ore ore The distribution angle of the next batch of materials is adjusted according to the following method:
(1) if |L t+n-1 -L t+n When the I is less than 2, the distribution angle of the next batch of materials is not adjusted.
(2) If |L t+n-1 -L t+n When the I is more than or equal to 2, the blast furnace control system enters a material distribution angle compensation stage, and a material line actual measurement value L at the moment (t+n) is calculated according to the following formula t+n With the ore material line set point L Ore ore Is the difference L of (2) Ore-difference ：
L Ore-difference ＝L t+n -L Ore ore
Wherein L is Ore-difference Is the difference value between the actual measurement value of the ore material line and the set value of the ore material line at the time (t+n), L t+n Is the actual measurement value of the material line at time (t+n), L Ore ore Is the ore material line set value.
In this embodiment, the ore material line set value is 40cm, and if the blast furnace control system acquires the actual material line value L at the time (t+n) through the blast furnace trial rod t+n 140cm, L Ore-difference 100cm.
According to the correspondence shown in Table 2, when L Ore-difference E [90, 150), cloth of next batch of materialAnd the material angle is adjusted according to the corresponding second material distribution angle compensation value, namely, the material distribution angle of the next batch of materials is reduced by 2 degrees.
In daily production, three sets of blast furnace trial rods are generally adopted in the blast furnace to improve the accuracy of judging the blast furnace material breakage. The monitoring results of all blast furnace trial rods are transmitted to a blast furnace control system in real time, wherein the monitoring result of any blast furnace trial rod is used as a stock line actual measurement value to carry out compensation adjustment on the distribution angle of the next batch of materials according to the method.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the invention, and those skilled in the art will appreciate that the modifications made to the invention fall within the scope of the invention without departing from the spirit of the invention.
Claims (1)
1. A method for rapidly processing disintegrating materials by combining a blast furnace control system with a blast furnace trial rod is characterized by comprising the following steps:
1) The method comprises the steps of connecting a controller of a blast furnace stock rod with a blast furnace control system in a signal manner, establishing a distribution angle compensation value database in the blast furnace control system, setting a material line set value and a material collapse critical value in the blast furnace control system, wherein the material line set value comprises a coke material line set value and an ore material line set value, and the distribution angle compensation value database comprises a difference value between a material line actual measurement value and the material line set value and a distribution angle compensation value corresponding to the difference value;
2) The blast furnace control system acquires a stockline actual measurement value through a blast furnace stock rod and compares the stockline actual measurement value with a stockline set value;
2-1) when the actual measurement value of the material line is higher than the set value of the material line, the blast furnace control system enters a material distribution angle compensation stage, and according to the difference value between the actual measurement value of the material line and the set value of the material line, a material distribution angle compensation value corresponding to the difference value is called from a material distribution angle compensation value database, and the material distribution angle of the next batch of materials is adjusted;
2-2) when the actual measurement value of the material line is not higher than the set value of the material line, taking the absolute value of the difference value of the actual measurement values of the material line of two adjacent times in one sampling period of the blast furnace stock rod, and comparing the absolute value with the critical value of the material collapse:
the measured values of the material line adjacent to the two times in the sampling period comprise the measured value L of the material line at the time (t+n) t+n And (t+n-1) the actual measurement value of the line at time L t+n-1 ；
(1) If the absolute value of the difference value of the actual measurement values of the material lines in two adjacent times is smaller than the material collapse critical value, the material distribution angle of the next batch of materials is not adjusted;
(2) if the absolute value of the difference value of the actual measurement values of the material lines in two adjacent times is more than or equal to the material collapse critical value, the blast furnace control system enters a material distribution angle compensation stage, and the actual measurement value L of the material line at the moment (t+n) is calculated t+n And a difference value between the material line setting value and the material line setting value, and a material distribution angle compensation value corresponding to the difference value is called from a material distribution angle compensation value database to adjust the material distribution angle of the next batch of materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210738824.3A CN114891944B (en) | 2022-06-28 | 2022-06-28 | Method for rapidly treating disintegrating materials by combining blast furnace control system with blast furnace trial rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210738824.3A CN114891944B (en) | 2022-06-28 | 2022-06-28 | Method for rapidly treating disintegrating materials by combining blast furnace control system with blast furnace trial rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114891944A CN114891944A (en) | 2022-08-12 |
| CN114891944B true CN114891944B (en) | 2023-10-24 |
Family
ID=82729520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210738824.3A Active CN114891944B (en) | 2022-06-28 | 2022-06-28 | Method for rapidly treating disintegrating materials by combining blast furnace control system with blast furnace trial rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114891944B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010045768A (en) * | 1999-11-08 | 2001-06-05 | 이구택 | Controlling method of charged material profile in blast furnace |
| CN105543432A (en) * | 2016-01-26 | 2016-05-04 | 莱芜钢铁集团电子有限公司 | Material distribution control method for blast furnace |
| CN113234874A (en) * | 2021-05-14 | 2021-08-10 | 浙江大学 | Blast furnace fault monitoring and self-healing control system based on dynamic Bayesian network |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4252684B2 (en) * | 1999-09-03 | 2009-04-08 | 日新製鋼株式会社 | Reduced blast furnace operation method |
-
2022
- 2022-06-28 CN CN202210738824.3A patent/CN114891944B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010045768A (en) * | 1999-11-08 | 2001-06-05 | 이구택 | Controlling method of charged material profile in blast furnace |
| CN105543432A (en) * | 2016-01-26 | 2016-05-04 | 莱芜钢铁集团电子有限公司 | Material distribution control method for blast furnace |
| CN113234874A (en) * | 2021-05-14 | 2021-08-10 | 浙江大学 | Blast furnace fault monitoring and self-healing control system based on dynamic Bayesian network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114891944A (en) | 2022-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102759939B (en) | Control system and control method of annealing furnace | |
| CN104388613A (en) | Method for quantitative evaluation of activeness of blast furnace hearth | |
| CN114891944B (en) | Method for rapidly treating disintegrating materials by combining blast furnace control system with blast furnace trial rod | |
| CN108855631B (en) | Flotation machine yield control device based on foam image analyzer | |
| CN104988577A (en) | Sapphire automatic control system and control method | |
| DE69838523T2 (en) | Method for operating a blast furnace | |
| CN113649421A (en) | Control system and method for temperature drop compensation of finish rolling inlet | |
| CN205802574U (en) | Prevent galvanizing unit strip steel from running the automatic reduction of speed control system of sideslip broken belt | |
| CN103471412A (en) | Electrode power control method and system for electric furnace | |
| CN204613713U (en) | A kind of negative deviation of steel bar with rib monitoring system | |
| CN109420681B (en) | Method for improving rolling stability in cold continuous rolling process through thickness monitoring | |
| CN214844968U (en) | Sintering ore FeO content online detection device for automatic blocking treatment | |
| CN104525926A (en) | Method for determining moving steel ladle from production line | |
| CN115327886A (en) | Intelligent PID controller, control method and system for material weight process of high-pressure roller grinding process | |
| US3518350A (en) | Control method and control system for batch-like electric melting furnace | |
| CN209210838U (en) | A kind of blast furnace top pressure stabilizing control system | |
| CN114020073A (en) | Heating furnace PID upper and lower limit self-adaption based control method and system | |
| CN202694181U (en) | Control system of annealing furnace | |
| CN110624957A (en) | Method for controlling process lubrication system of wet temper mill set by taking roughness as target | |
| CN104635770A (en) | Classifier control method based on pulp pump sump liquid level as main control parameter | |
| CN204824598U (en) | Glass fibre reinforced plastics furnace | |
| CN208432924U (en) | A kind of tempered glass production Furnace Temperature Control System | |
| CN111036691A (en) | Intelligent liquid supply control system for rolling mill | |
| US3206291A (en) | Method of refining glass | |
| CN209848963U (en) | Intelligent automatic feeding system of cone crusher |
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 |