CN113649421A - Control system and method for temperature drop compensation of finish rolling inlet - Google Patents
Control system and method for temperature drop compensation of finish rolling inlet Download PDFInfo
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- CN113649421A CN113649421A CN202110768285.3A CN202110768285A CN113649421A CN 113649421 A CN113649421 A CN 113649421A CN 202110768285 A CN202110768285 A CN 202110768285A CN 113649421 A CN113649421 A CN 113649421A
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- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
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Abstract
The invention provides a control system and a control method for temperature drop compensation of a finish rolling inlet, which relate to the technical field of steel production and comprise a temperature detector and a centralized control console, wherein the temperature detector is connected with the centralized control console, and the centralized control console comprises a temperature acquisition unit, a temperature comparison unit and a time setting and adjusting unit for each square frame; the invention collects the temperature of the inlet of the steel splitting roller way and the temperature of the outlet of the steel splitting roller way in real time and compares the temperature to judge the value of the reduction slope angle of the temperature of the finish rolling inlet, sends out an adjusting signal of the set time of each square frame of the pre-cooling water tank according to the size relation that the value of the reduction slope angle of the temperature of the finish rolling inlet is equal to 0 degree or 30 degrees, adjusts the set time of each square frame of the pre-cooling water tank through the set time adjusting signal of each square frame, can quickly, accurately, real-timely and simply control the temperature reduction compensation of the finish rolling inlet, prevents the temperature of the finished steel from gradually reducing from the head in the production and rolling process, and avoids influencing the quality of the finished steel.
Description
Technical Field
The invention relates to the technical field of steel production, in particular to a control system and method for temperature drop compensation of a finish rolling inlet.
Background
In the steel production, the steel separating roller way is longer in distance, the cooling time of red steel on the steel separating roller way is longer, the temperature is gradually reduced in the rolling process of one steel, and the head-tail difference is about 80-100 ℃, so that great bottlenecks are brought to the performance control and the cold control of a water tank;
in the rolling process of one steel, the entrance of the steel splitting roller way is used as a quantitative reference point of the temperature, the temperature of the whole steel is continuously reduced in the rolling process, the reduction is caused by natural cooling on the steel splitting roller ways which are unique to the two steel splitting roller ways, wherein the steel splitting roller way consists of a middle roller way, a 1-line steel splitting roller way and a 2-line steel splitting roller way, the connection of other rolling mills is compact, the problem of natural cooling for a longer time does not exist, therefore, the temperature drop of the steel splitting roller way is accompanied with the subsequent whole rolling process, because the cold rolling is controlled, the control of the water tank is based on a set of fixed control system, this results in a gradual reduction in the final temperature of the steel after controlled cooling, starting from the head, which creates a significant bottleneck for the whole controlled cold rolling process, therefore, the invention provides a control system and a control method for compensating temperature drop of a finish rolling inlet so as to solve the problems in the prior art.
Disclosure of Invention
Aiming at the problems, the invention provides a control system and a method for finish rolling inlet temperature drop compensation, the control system and the method for finish rolling inlet temperature drop compensation collect the inlet temperature of a steel splitting roller way and the outlet temperature of the steel splitting roller way in real time and compare the inlet temperature and the outlet temperature, judge the value of the temperature drop slope angle of the finish rolling inlet, send out an adjusting signal of the set time of each square frame of a pre-water cooling water tank according to the size relation that the value of the temperature drop slope angle of the finish rolling inlet collected at present is equal to 0 degree or 30 degrees, adjust the set time of each square frame of the pre-water cooling water tank through the set time adjusting signal of each square frame, namely control the opening degree of a film adjusting valve of the water quantity of the pre-water cooling water tank between the finish rolling and a flying shear, and can quickly, accurately, simply control the finish rolling inlet temperature drop compensation in real time, and prevent the temperature of steel products from gradually reducing from the head in the production rolling process, the quality of the finished product is prevented from being influenced.
In order to realize the purpose of the invention, the invention is realized by the following technical scheme: a control system for temperature drop compensation of a finish rolling inlet comprises a temperature detector and a centralized console, wherein the temperature detector is connected with the centralized console, and the centralized console comprises a temperature acquisition unit, a temperature comparison unit and a time setting and adjusting unit for each square frame;
the temperature detector is used for detecting the inlet temperature of the steel splitting roller way and the outlet temperature of the steel splitting roller way, the temperature acquisition unit is used for acquiring the inlet temperature of the steel splitting roller way and the outlet temperature of the steel splitting roller way, the temperature comparison unit is used for comparing the currently acquired inlet temperature of the steel splitting roller way and the outlet temperature of the steel splitting roller way and judging the slope angle of the temperature reduction of the finish rolling inlet, the setting time adjusting unit of each frame is used for sending an adjusting signal of the setting time of each frame of the pre-cooling water tank according to the size relation that the value of the slope angle of the temperature reduction of the currently acquired finish rolling inlet temperature is equal to 0 degree or 30 degrees, and the adjusting signal of the setting time of each frame of the pre-cooling water tank is used for adjusting the setting time of each frame of the pre-cooling water tank through the setting time adjusting signal of each frame.
The further improvement lies in that: the temperature detector comprises an integrated double-color infrared thermometer and a temperature analog quantity signal receiving module, the integrated double-color infrared thermometer identifies the temperature of the red steel on the spot through on-site real-time scanning and acquisition, and the temperature analog quantity signal receiving module receives the acquired red steel temperature analog quantity signal through a shielded cable.
The further improvement lies in that: the centralized Control console is intelligent equipment, the temperature detector is connected with the intelligent equipment, the integrated double-color infrared thermometer identifies the temperature of red steel on site through on-site real-time scanning and acquisition, transmits red steel temperature analog quantity signals to the temperature analog quantity signal receiving module through a shielded cable for processing, transmits the signals to the intelligent equipment after being calculated and processed, the intelligent equipment is provided with a Windows Control Center window Control Center system and an IBA system, the intelligent equipment can acquire the inlet temperature of the steel splitting roller way and the outlet temperature of the steel splitting roller way according to the signals output by the temperature analog quantity signal receiving module, and the intelligent equipment is one of a desktop computer, a notebook computer, an intelligent mobile phone, a PDA handheld terminal and a tablet personal computer.
The further improvement lies in that: the centralized Control console is provided with a human-computer interaction interface, displays the currently acquired inlet temperature and outlet temperature of the steel splitting roller way through an operation picture of a Windows Control Center window Control Center system, displays the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shear in real time through an operation picture display chart of the Windows Control Center window Control Center system, and obtains the regulating condition of the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shear in set time of each frame according to the chart displayed by the human-computer interaction interface.
A control method for temperature drop compensation of a finish rolling inlet comprises the following steps:
the method comprises the following steps: the temperature detector is used for detecting and matching with the temperature acquisition unit to acquire the temperature of the red steel at the inlet of the steel splitting roller bed in real time and acquire the temperature of the red steel at the outlet of the steel splitting roller bed in real time;
step two: comparing the collected red steel temperature at the inlet of the steel splitting roller bed with the collected red steel temperature at the outlet of the roller bed, calculating a reduction slope angle of the temperature of the finish rolling inlet, setting the setting time of each square frame according to the slope angle, reducing the setting time of each square frame by 1%, and controlling the opening degree of a film regulating valve of the water quantity of a pre-cooling water tank between pre-finish rolling and flying shears by the setting value;
step three: when the collected finish rolling inlet temperature reduction slope angle is less than 30 degrees, controlling the opening degree of a film regulating valve for controlling the water quantity of a pre-cooling water tank between pre-finish rolling and a flying shear to be reduced by 1% in each set time of a square frame, performing descending closed-loop control by taking 1000ms as a time base, performing descending closed-loop control adjustment by taking 1000ms as the time base once every 5000ms, and designing 12 adjustment periods in total until the finish rolling inlet temperature is stable;
step four: when the collected finish rolling inlet temperature reduction slope angle is more than 30 degrees, the opening degree of a film regulating valve for controlling the water quantity of a pre-cooling water tank between the pre-finish rolling and the flying shear is reduced by 1% in each set time of a square frame, the decreasing closed-loop control is carried out by taking 500ms as a time base, the decreasing closed-loop control adjustment is carried out once every 5000ms by taking 500ms as the time base, and 12 adjustment periods are designed in total until the finish rolling inlet temperature is stable;
step five: and when the temperature of the collected finish rolling inlet is stable, the opening degree of a film regulating valve for controlling the water quantity of a pre-cooling water tank between the pre-finish rolling and the flying shear is kept unchanged every set time of a square frame.
The further improvement lies in that: in the third step, the fourth step and the fifth step, the finish rolling inlet temperature is stable, that is, the finish rolling inlet temperature drop slope angle is 0 degree.
The further improvement lies in that: in the first step, the red steel temperature at the inlet of the steel splitting roller way and the red steel temperature at the outlet of the steel splitting roller way are collected in real time at a time interval of 30-80ms each time.
The further improvement lies in that: in the second step, the set time of each square frame is a unit time decreasing variable of the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shears, and the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shears is used for regulating the set time of each square frame.
The invention has the beneficial effects that:
1. the invention collects the temperature of the inlet of the steel splitting roller way and the temperature of the outlet of the steel splitting roller way in real time and compares the temperature of the inlet of the steel splitting roller way, judges the numerical value of the temperature reduction slope angle of the finish rolling inlet, sends an adjusting signal of the set time of each square frame of the pre-water cooling water tank according to the size relation that the numerical value of the temperature reduction slope angle of the finish rolling inlet collected at present is equal to 0 degree or 30 degrees, and adjusts the set time of each square frame of the pre-water cooling water tank through the set time adjusting signal of each square frame, namely controls the opening degree of a film adjusting valve of the water quantity of the pre-water cooling water tank between the pre-finish rolling and a flying shear.
2. The invention collects the red steel temperature at the inlet of the steel splitting roller way and the red steel temperature at the outlet of the steel splitting roller way in real time at the time interval of 30-80ms each time, and can properly reduce the system calculation amount while realizing the real-time collection of the inlet temperature of the steel splitting roller way and the outlet temperature of the steel splitting roller way.
3. The pre-cooling water tank of the invention has the following time setting adjusting mode per square frame: when the reduction slope angle of the finish rolling inlet temperature is collected every time at present, the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shear is gradually reduced and regulated once by taking 500 or 1000ms as a time base number per square frame set time, the regulating method greatly improves the regulating precision of the set time per square frame of the high-speed wire pre-cooling water tank, and can more accurately control the finish rolling inlet temperature reduction compensation.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a flow chart of the method of the present invention.
Detailed Description
In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
Example one
According to the illustration in fig. 1, the present embodiment provides a control system for compensating temperature drop of a finish rolling inlet, which includes a temperature detector and a centralized console, wherein the temperature detector is connected to the centralized console, and the centralized console includes a temperature acquisition unit, a temperature comparison unit, and a time setting unit for each block;
the temperature detector is used for detecting the inlet temperature of the steel splitting roller way and the outlet temperature of the steel splitting roller way, the temperature acquisition unit is used for acquiring the inlet temperature of the steel splitting roller way and the outlet temperature of the steel splitting roller way, the temperature comparison unit is used for comparing the currently acquired inlet temperature of the steel splitting roller way and the outlet temperature of the steel splitting roller way and judging the slope angle of the temperature reduction of the finish rolling inlet, the setting time adjusting unit of each frame is used for sending an adjusting signal of the setting time of each frame of the pre-cooling water tank according to the size relation that the value of the slope angle of the temperature reduction of the currently acquired finish rolling inlet temperature is equal to 0 degree or 30 degrees, and the adjusting signal of the setting time of each frame of the pre-cooling water tank is used for adjusting the setting time of each frame of the pre-cooling water tank through the setting time adjusting signal of each frame.
The temperature detector comprises an integrated double-color infrared thermometer and a temperature analog quantity signal receiving module, the integrated double-color infrared thermometer identifies the temperature of the red steel on the spot through on-site real-time scanning and acquisition, and the temperature analog quantity signal receiving module receives the acquired red steel temperature analog quantity signal through a shielded cable.
The centralized Control console is intelligent equipment, the temperature detector is connected with the intelligent equipment, the integrated double-color infrared thermometer identifies the temperature of red steel on site through on-site real-time scanning and acquisition, transmits red steel temperature analog quantity signals to the temperature analog quantity signal receiving module through a shielded cable for processing, transmits the signals to the intelligent equipment after being calculated and processed, the intelligent equipment is provided with a Windows Control Center window Control Center system and an IBA system, the intelligent equipment can acquire the inlet temperature of the steel splitting roller way and the outlet temperature of the steel splitting roller way according to the signals output by the temperature analog quantity signal receiving module, and the intelligent equipment is one of a desktop computer, a notebook computer, an intelligent mobile phone, a PDA handheld terminal and a tablet personal computer.
The centralized Control console is provided with a human-computer interaction interface, displays the currently acquired inlet temperature and outlet temperature of the steel splitting roller way through an operation picture of a Windows Control Center window Control Center system, displays the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shear in real time through an operation picture display chart of the Windows Control Center window Control Center system, and obtains the regulating condition of the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shear in set time of each frame according to the chart displayed by the human-computer interaction interface.
Example two
According to fig. 2, the present embodiment provides a control method for compensating a temperature drop at a finish rolling inlet, including the following steps:
the method comprises the following steps: the temperature detector is used for detecting, and the temperature acquisition unit is matched to acquire the red steel temperature at the inlet of the steel splitting roller way and the red steel temperature at the outlet of the steel splitting roller way in real time at a time interval of 60ms each time;
step two: comparing the collected red steel temperature at the inlet of the steel splitting roller bed with the collected red steel temperature at the outlet of the roller bed, calculating a reduction slope angle of the temperature of the finish rolling inlet, setting the setting time of each frame according to the slope angle, reducing the setting time of each frame by 1%, and controlling the opening degree of a film regulating valve of the water quantity of a pre-cooling water tank between the pre-finish rolling and a flying shear by a set value, wherein the setting time of each frame is a unit time decreasing variable of the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shear, and the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shear is adjusted by adjusting the setting time of each frame;
step three: when the collected finish rolling inlet temperature reduction slope angle is less than 30 degrees, controlling the opening degree of a film regulating valve for controlling the water quantity of a pre-cooling water tank between pre-finish rolling and a flying shear to be reduced by 1% in each set time of a box, performing descending closed-loop control by taking 1000ms as a time base, performing descending closed-loop control adjustment by taking 1000ms as the time base once every 5000ms, and designing 12 adjustment periods in total until the finish rolling inlet temperature is stable, namely the finish rolling inlet temperature reduction slope angle is 0 degree;
step four: when the collected finish rolling inlet temperature reduction slope angle is more than 30 degrees, controlling the opening degree of a film regulating valve for controlling the water quantity of a pre-cooling water tank between pre-finish rolling and a flying shear to be reduced by 1% in each set time of a square frame, performing descending closed-loop control by taking 500ms as a time base, performing descending closed-loop control adjustment by taking 500ms as the time base once every 5000ms, and designing 12 adjustment periods in total until the finish rolling inlet temperature is stable, namely the finish rolling inlet temperature reduction slope angle is 0 degree;
step five: and when the collected finish rolling inlet temperature is stable, namely the reduction slope angle of the finish rolling inlet temperature is 0 degree, the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shear is kept unchanged every set time of a box.
For example: when the reduction slope angle of the finish rolling inlet temperature collected at the time t0 is less than 30 degrees, the opening degree of a film regulating valve for controlling the water quantity of a pre-cooling water tank between the pre-finish rolling and the flying shear is reduced by 1% in each set time frame, and the 1000ms is used as a time base number for carrying out descending closed-loop control adjustment; when the reduction slope angle of the finish rolling inlet temperature collected at the next moment t1 is less than 30 degrees, the opening degree of a film regulating valve for controlling the water quantity of a pre-cooling water tank between the pre-finish rolling and the flying shear is reduced by 1% in each set time frame, and the 1000ms is taken as a time base to perform descending closed-loop control adjustment; and analogizing in turn, stopping adjusting the set time of each box of the pre-water-cooling water tank until the temperature of the finish rolling inlet collected at a certain time tN is stable, namely the temperature reduction slope angle of the finish rolling inlet is equal to 0 degree.
The invention collects the temperature of the inlet of the steel splitting roller bed and the temperature of the outlet of the steel splitting roller bed in real time and compares the temperature of the inlet of the steel splitting roller bed, judges the value of the temperature reduction slope angle of the finish rolling inlet, sends an adjusting signal of the set time of each square frame of the pre-water cooling water tank according to the size relation that the value of the temperature reduction slope angle of the finish rolling inlet is equal to 0 ℃ or 30 ℃, adjusts the set time of each square frame of the pre-water cooling water tank through the set time adjusting signal of each square frame, namely controls the opening degree of a film adjusting valve of the water quantity of the pre-water cooling water tank between the pre-finish rolling and a flying shear, can quickly, accurately, real-timely and simply control the temperature reduction compensation of the finish rolling inlet, prevents the temperature of the steel from gradually reducing from the head in the production rolling process, and avoids influencing the quality of the finished product, and collects the temperature of the red steel at the inlet of the steel splitting roller bed at the time interval of 30-80ms each time, The red steel temperature at the outlet of the steel splitting roller way can properly reduce the system calculation amount while realizing the real-time acquisition of the inlet temperature of the steel splitting roller way and the outlet temperature of the steel splitting roller way, and meanwhile, the adjusting mode of the set time of each square frame of the pre-cooling water tank disclosed by the invention is as follows: when the reduction slope angle of the finish rolling inlet temperature is collected every time at present, the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shear is gradually reduced and regulated once by taking 500 or 1000ms as a time base number per square frame set time, the regulating method greatly improves the regulating precision of the set time per square frame of the high-speed wire pre-cooling water tank, and can more accurately control the finish rolling inlet temperature reduction compensation.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a control system of finish rolling entry temperature drop compensation, includes thermodetector and centralized control platform, its characterized in that: the temperature detector is connected with a centralized control console, and the centralized control console comprises a temperature acquisition unit, a temperature comparison unit and a time setting and adjusting unit for each frame;
the temperature detector is used for detecting the inlet temperature of the steel splitting roller way and the outlet temperature of the steel splitting roller way, the temperature acquisition unit is used for acquiring the inlet temperature of the steel splitting roller way and the outlet temperature of the steel splitting roller way, the temperature comparison unit is used for comparing the currently acquired inlet temperature of the steel splitting roller way and the outlet temperature of the steel splitting roller way and judging the slope angle of the temperature reduction of the finish rolling inlet, the setting time adjusting unit of each frame is used for sending an adjusting signal of the setting time of each frame of the pre-cooling water tank according to the size relation that the value of the slope angle of the temperature reduction of the currently acquired finish rolling inlet temperature is equal to 0 degree or 30 degrees, and the adjusting signal of the setting time of each frame of the pre-cooling water tank is used for adjusting the setting time of each frame of the pre-cooling water tank through the setting time adjusting signal of each frame.
2. The finish rolling inlet temperature drop compensation control system of claim 1, wherein: the temperature detector comprises an integrated double-color infrared thermometer and a temperature analog quantity signal receiving module, the integrated double-color infrared thermometer identifies the temperature of the red steel on the spot through on-site real-time scanning and acquisition, and the temperature analog quantity signal receiving module receives the acquired red steel temperature analog quantity signal through a shielded cable.
3. The finish rolling inlet temperature drop compensation control system of claim 2, wherein: the centralized Control console is intelligent equipment, the temperature detector is connected with the intelligent equipment, the integrated double-color infrared thermometer identifies the temperature of red steel on site through on-site real-time scanning and acquisition, transmits red steel temperature analog quantity signals to the temperature analog quantity signal receiving module through a shielded cable for processing, transmits the signals to the intelligent equipment after being calculated and processed, the intelligent equipment is provided with a Windows Control Center window Control Center system and an IBA system, the intelligent equipment can acquire the inlet temperature of the steel splitting roller way and the outlet temperature of the steel splitting roller way according to the signals output by the temperature analog quantity signal receiving module, and the intelligent equipment is one of a desktop computer, a notebook computer, an intelligent mobile phone, a PDA handheld terminal and a tablet personal computer.
4. The finish rolling inlet temperature drop compensation control system of claim 3, wherein: the centralized Control console is provided with a human-computer interaction interface, displays the currently acquired inlet temperature and outlet temperature of the steel splitting roller way through an operation picture of a Windows Control Center window Control Center system, displays the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shear in real time through an operation picture display chart of the Windows Control Center window Control Center system, and obtains the regulating condition of the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shear in set time of each frame according to the chart displayed by the human-computer interaction interface.
5. A control method for compensating temperature drop of a finish rolling inlet is characterized by comprising the following steps:
the method comprises the following steps: the temperature detector is used for detecting and matching with the temperature acquisition unit to acquire the temperature of the red steel at the inlet of the steel splitting roller bed in real time and acquire the temperature of the red steel at the outlet of the steel splitting roller bed in real time;
step two: comparing the collected red steel temperature at the inlet of the steel splitting roller bed with the collected red steel temperature at the outlet of the roller bed, calculating a reduction slope angle of the temperature of the finish rolling inlet, setting the setting time of each square frame according to the slope angle, reducing the setting time of each square frame by 1%, and controlling the opening degree of a film regulating valve of the water quantity of a pre-cooling water tank between pre-finish rolling and flying shears by the setting value;
step three: when the collected finish rolling inlet temperature reduction slope angle is less than 30 degrees, controlling the opening degree of a film regulating valve for controlling the water quantity of a pre-cooling water tank between pre-finish rolling and a flying shear to be reduced by 1% in each set time of a square frame, performing descending closed-loop control by taking 1000ms as a time base, performing descending closed-loop control adjustment by taking 1000ms as the time base once every 5000ms, and designing 12 adjustment periods in total until the finish rolling inlet temperature is stable;
step four: when the collected finish rolling inlet temperature reduction slope angle is more than 30 degrees, the opening degree of a film regulating valve for controlling the water quantity of a pre-cooling water tank between the pre-finish rolling and the flying shear is reduced by 1% in each set time of a square frame, the decreasing closed-loop control is carried out by taking 500ms as a time base, the decreasing closed-loop control adjustment is carried out once every 5000ms by taking 500ms as the time base, and 12 adjustment periods are designed in total until the finish rolling inlet temperature is stable;
step five: and when the temperature of the collected finish rolling inlet is stable, the opening degree of a film regulating valve for controlling the water quantity of a pre-cooling water tank between the pre-finish rolling and the flying shear is kept unchanged every set time of a square frame.
6. The finish rolling inlet temperature drop compensation control method of claim 5, characterized in that: in the third step, the fourth step and the fifth step, the finish rolling inlet temperature is stable, that is, the finish rolling inlet temperature drop slope angle is 0 degree.
7. The finish rolling inlet temperature drop compensation control method of claim 6, characterized in that: in the first step, the red steel temperature at the inlet of the steel splitting roller way and the red steel temperature at the outlet of the steel splitting roller way are collected in real time at a time interval of 30-80ms each time.
8. The finish rolling inlet temperature drop compensation control method of claim 7, characterized in that: in the second step, the set time of each square frame is a unit time decreasing variable of the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shears, and the opening degree of the film regulating valve for controlling the water quantity of the pre-cooling water tank between the pre-finish rolling and the flying shears is used for regulating the set time of each square frame.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114082791A (en) * | 2021-11-22 | 2022-02-25 | 阳春新钢铁有限责任公司 | Control system and method for through pipe wearing and pre-waking of spiral finished product plastic coil |
| CN114101349A (en) * | 2021-11-19 | 2022-03-01 | 阳春新钢铁有限责任公司 | Intelligent processing system and method for intelligent detection of steel shifting abnormity of dual-high-speed wire steel splitting roller way |
| CN114101348A (en) * | 2021-11-17 | 2022-03-01 | 阳春新钢铁有限责任公司 | System and method for preventing irregular output of rolled material throwing |
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| CN105327949A (en) * | 2015-11-25 | 2016-02-17 | 北京金自天正智能控制股份有限公司 | Flow control method for rolling temperature of hot rolled steel strip |
| CN110665965A (en) * | 2019-10-17 | 2020-01-10 | 山东钢铁集团日照有限公司 | Stable production method of hot-rolled extreme thin cold-rolled base material |
| CN110842033A (en) * | 2019-10-22 | 2020-02-28 | 首钢集团有限公司 | Method and system for improving TMCP steel plate water cooling quality |
| CN112108525A (en) * | 2020-09-16 | 2020-12-22 | 南京钢铁股份有限公司 | Air cooling control method for reducing temperature of rolled piece and steel rolling production line |
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| CN114101348A (en) * | 2021-11-17 | 2022-03-01 | 阳春新钢铁有限责任公司 | System and method for preventing irregular output of rolled material throwing |
| CN114101349A (en) * | 2021-11-19 | 2022-03-01 | 阳春新钢铁有限责任公司 | Intelligent processing system and method for intelligent detection of steel shifting abnormity of dual-high-speed wire steel splitting roller way |
| CN114101349B (en) * | 2021-11-19 | 2023-05-26 | 阳春新钢铁有限责任公司 | Intelligent detection and intelligent treatment system and method for steel-poking abnormality of double-high-line steel-separating roller way |
| CN114082791A (en) * | 2021-11-22 | 2022-02-25 | 阳春新钢铁有限责任公司 | Control system and method for through pipe wearing and pre-waking of spiral finished product plastic coil |
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