阅读说明：本技术 一种尾钢综合调控的控制系统及方法 (Control system and method for comprehensive regulation and control of tail steel ) 是由 朱春韶 朱国俊 马东浩 刘逖 王鑫 桂立波 刘晓明 欧青红 高耀 黄利明 何剑辉 于 2021-07-07 设计创作，主要内容包括：本发明提供了一种尾钢综合调控的控制系统及方法,涉及钢铁生产技术领域,包括活套套高检测器和电控工程师站,所述活套套高检测器和电控工程师站连接,所述电控工程师站包括套高采集单元、套高比较单元和尾部套高下降量调节单元；本发明实时采集一支钢活套过钢过程中后1/5的套高与一支钢活套过钢过程中前4/5的套高并进行比较,判断出比值；根据比值设定尾部套高下降量,直到一支钢活套过钢过程中尾部套高稳定,能够快速、准确、实时且简单的控制活套尾部起大套甩尾等生产瓶颈问题,防止预精轧及精轧留尾、含钢堆钢的问题,避免尾部套量消耗过快导致尾部尺寸变小,保证尺寸在正常的公差控制范围。(The invention provides a control system and a control method for comprehensive regulation and control of tail steel, which relate to the technical field of steel production and comprise a loop height detector and an electronic control engineer station, wherein the loop height detector is connected with the electronic control engineer station, and the electronic control engineer station comprises a loop height acquisition unit, a loop height comparison unit and a tail loop height reduction adjustment unit; the method comprises the steps of collecting and comparing the sleeve height of the rear 1/5 in the steel passing process of a steel loop with the sleeve height of the front 4/5 in the steel passing process of the steel loop in real time, and judging a ratio; set for the high decline volume of tail portion cover according to the ratio, it is high stable to cross steel in-process tail portion cover until a steel loop, can be fast, accurate, real-time and simple control loop afterbody play production bottleneck problems such as big set of whipping tail, prevent to finish rolling in advance and finish rolling and stay the tail, contain the problem that the steel piled the steel, avoid tail portion cover volume consumption to lead to the afterbody size to diminish at the excessive speed, guarantee the size at normal tolerance control scope.)

1. The utility model provides a control system of regulation and control is synthesized to tail steel, includes loop height detector and automatically controlled engineer station, its characterized in that: the loop height detector is connected with an electronic control engineer station, and the electronic control engineer station comprises a loop height acquisition unit, a loop height comparison unit and a tail loop height descending amount adjusting unit;

the sleeve height detector is used for detecting the sleeve height of 1/5 after a steel loop passes through the steel in the steel process and the sleeve height of 4/5 before the steel loop passes through the steel in the steel process, the sleeve height acquisition unit is used for acquiring the sleeve height of 1/5 after the steel loop passes through the steel in the steel process and the sleeve height of 4/5 before the steel loop passes through the steel in the steel process, the sleeve height comparison unit is used for comparing the sleeve height of 1/5 after the steel loop passes through the steel in the steel process and the sleeve height of 4/5 before the steel loop passes through the steel in the steel process, which are acquired currently, to judge the ratio of the sleeve height of 1/5 after the steel loop passes through the steel to the sleeve height of 4/5 before the steel loop passes through the steel in the steel process, and the tail sleeve height adjustment unit is used for setting the sleeve height reduction of the living sleeve according to the ratio acquired currently.

2. The control system for comprehensively regulating and controlling the tail steel according to claim 1, characterized in that: the loop height detector comprises a digital display loop detector and a loop height analog quantity signal receiving module, the digital display loop detector acquires the loop height through on-site real-time scanning, and the loop height analog quantity signal receiving module receives the analog quantity signal of the loop height through a shielded cable.

3. The control system for comprehensively regulating and controlling the tail steel according to claim 2, characterized in that: the automatically controlled engineer station is computer workstation, and computer workstation connects loop height detector, the digital loop height that shows loop detector real-time scanning and collection discernment scene to the loop height analog signal that will gather transmits for loop height analog signal receiving module through shielded cable and calculates the processing, computer workstation receives the signal after the calculation processing, install Windows Control Center window Control Center system in the computer workstation, and Windows Control Center window Control Center system obtains a steel loop and crosses 1/5's behind the steel in-process set height, a steel loop and crosses 4/5's set height before the steel in-process according to the signal after the calculation processing.

4. The control system for comprehensively regulating and controlling the tail steel according to claim 3, characterized in that: the computer workstation is provided with a human-computer interaction interface, displays the height of the rear 1/5 in the steel passing process of a steel loop and the height of the front 4/5 in the steel passing process of a steel loop which are collected at present through an operation picture of a Windows Control Center window Control Center system, displays the height descending amount of the tail part of the steel loop through a display chart, and obtains the adjustment condition of the height descending amount of the tail part of the steel loop according to the chart displayed by the human-computer interaction interface.

5. A control method for comprehensive regulation and control of tail steel is characterized by comprising the following steps:

the method comprises the following steps: the sleeve height of front 4/5 in the process of passing steel of a steel loop is obtained in real time by utilizing the detection of a sleeve height detector and matching with the acquisition of a sleeve height acquisition unit, and then the sleeve height of rear 1/5 in the process of passing steel of the steel loop is obtained in real time;

step two: comparing the obtained sleeve height of rear 1/5 with the sleeve height of front 4/5 in the steel passing process of the steel loop, calculating the ratio of the sleeve height of rear 1/5 to the sleeve height of front 4/5 in the steel passing process of the steel loop, and setting the sleeve height reduction amount of the tail of the steel loop according to the ratio;

step three: when the ratio of the collected sleeve height of the rear 1/5 in the steel passing process of the one steel loop to the sleeve height of the front 4/5 in the steel passing process of the one steel loop is larger than 1, setting the height reduction amount of the tail sleeve of the loop to be 10% of the set sleeve height until the tail sleeve height is stable in the steel passing process of the one steel loop;

step four: when the ratio of the collected sleeve height of the rear 1/5 in the steel passing process of the one steel loop to the sleeve height of the front 4/5 in the steel passing process of the one steel loop is less than 1, setting the height reduction amount of the tail sleeve of the loop to be 5% of the set sleeve height until the tail sleeve is highly stable in the steel passing process of the one steel loop;

step five: when the ratio of the collected sleeve height of the rear 1/5 in the steel passing process of the steel loop to the sleeve height of the front 4/5 in the steel passing process of the steel loop is 1, the height reduction amount of the tail sleeve of the loop is set to be 7.5% of the set sleeve height, and the tail sleeve height stability in the steel passing process of the steel loop is maintained.

6. The control method for comprehensive regulation and control of the tail steel according to claim 5, characterized in that: in the third step, the fourth step and the fifth step, the tail sleeve is high and stable in the steel passing process of one steel loop, namely the ratio of the sleeve height of the rear 1/5 in the steel passing process of one steel loop to the sleeve height of the front 4/5 in the steel passing process of one steel loop is 1.

7. The control method for comprehensive regulation and control of the tail steel according to claim 6, characterized by comprising the following steps: in the first step, the sleeve height of 1/5 after a steel loop passes through the steel and the sleeve height of 4/5 before the steel loop passes through the steel are collected in real time at a time interval of 20-80ms each time.

8. The control method for comprehensive regulation and control of the tail steel according to claim 7, characterized by comprising the following steps: in the second step, the loop tail height descending amount is the ratio of the difference between the loop high set value and the loop tail height set value, and the loop tail height descending amount is adjusted by adjusting the loop tail height in the second step.

Technical Field

The invention relates to the technical field of steel production, in particular to a control system and a control method for comprehensive regulation and control of tail steel.

Background

In the production of steel, the high-speed line of a steel rolling mill is designed into 2 production lines, the middle rolling is the double-line rolling of a single rolling mill, the tension matching adjustment of the whole high-speed area is complex, and the loop control adjustment is one of very important and critical links;

the tail control of one steel in the whole regulation and control process is very critical, if the tail sleeve quantity is not consumed in advance, pre-finish rolling and finish rolling tail retaining are caused, so that pre-finish rolling and finish rolling steel-containing steel piling are caused, the processing time is very long, and if the tail sleeve quantity is consumed too fast and too much, the tail size is reduced and deviates from the normal tolerance control range, so that excessive tail finished products of one steel need to be cut at the head-to-tail ring section.

Disclosure of Invention

Aiming at the problems, the invention provides a control system and a control method for comprehensive regulation and control of tail steel, which are used for acquiring the sleeve height of the rear 1/5 in the steel passing process of a steel loop and the sleeve height of the front 4/5 in the steel passing process of the steel loop in real time, comparing the sleeve heights and judging the ratio; set for the high decline volume of tail portion cover according to the ratio, it is high stable to cross steel in-process tail portion cover until a steel loop, can be fast, accurate, real-time and simple control loop afterbody play production bottleneck problems such as big set of whipping tail, prevent to finish rolling in advance and finish rolling and stay the tail, contain the problem that the steel piled the steel, avoid tail portion cover volume consumption to lead to the afterbody size to diminish at the excessive speed, guarantee the size at normal tolerance control scope.

In order to realize the purpose of the invention, the invention is realized by the following technical scheme: a control system for comprehensive regulation and control of tail steel comprises a loop height detector and an electronic control engineer station, wherein the loop height detector is connected with the electronic control engineer station, and the electronic control engineer station comprises a loop height acquisition unit, a loop height comparison unit and a tail loop height reduction adjustment unit;

the sleeve height detector is used for detecting the sleeve height of 1/5 after a steel loop passes through the steel in the steel process and the sleeve height of 4/5 before the steel loop passes through the steel in the steel process, the sleeve height acquisition unit is used for acquiring the sleeve height of 1/5 after the steel loop passes through the steel in the steel process and the sleeve height of 4/5 before the steel loop passes through the steel in the steel process, the sleeve height comparison unit is used for comparing the sleeve height of 1/5 after the steel loop passes through the steel in the steel process and the sleeve height of 4/5 before the steel loop passes through the steel in the steel process, which are acquired currently, to judge the ratio of the sleeve height of 1/5 after the steel loop passes through the steel to the sleeve height of 4/5 before the steel loop passes through the steel in the steel process, and the tail sleeve height adjustment unit is used for setting the sleeve height reduction of the living sleeve according to the ratio acquired currently.

The further improvement lies in that: the loop height detector comprises a digital display loop detector and a loop height analog quantity signal receiving module, the digital display loop detector acquires the loop height through on-site real-time scanning, and the loop height analog quantity signal receiving module receives the analog quantity signal of the loop height through a shielded cable.

The further improvement lies in that: the automatically controlled engineer station is computer workstation, and computer workstation connects loop height detector, the digital loop height that shows loop detector real-time scanning and collection discernment scene to the loop height analog signal that will gather transmits for loop height analog signal receiving module through shielded cable and calculates the processing, computer workstation receives the signal after the calculation processing, install Windows Control Center window Control Center system in the computer workstation, and Windows Control Center window Control Center system obtains a steel loop and crosses 1/5's behind the steel in-process set height, a steel loop and crosses 4/5's set height before the steel in-process according to the signal after the calculation processing.

The further improvement lies in that: the computer workstation is provided with a human-computer interaction interface, displays the height of the rear 1/5 in the steel passing process of a steel loop and the height of the front 4/5 in the steel passing process of a steel loop which are collected at present through an operation picture of a Windows Control Center window Control Center system, displays the height descending amount of the tail part of the steel loop through a display chart, and obtains the adjustment condition of the height descending amount of the tail part of the steel loop according to the chart displayed by the human-computer interaction interface.

A control method for comprehensive regulation and control of tail steel comprises the following steps:

the method comprises the following steps: the sleeve height of front 4/5 in the process of passing steel of a steel loop is obtained in real time by utilizing the detection of a sleeve height detector and matching with the acquisition of a sleeve height acquisition unit, and then the sleeve height of rear 1/5 in the process of passing steel of the steel loop is obtained in real time;

step two: comparing the obtained sleeve height of rear 1/5 with the sleeve height of front 4/5 in the steel passing process of the steel loop, calculating the ratio of the sleeve height of rear 1/5 to the sleeve height of front 4/5 in the steel passing process of the steel loop, and setting the sleeve height reduction amount of the tail of the steel loop according to the ratio;

step three: when the ratio of the collected sleeve height of the rear 1/5 in the steel passing process of the one steel loop to the sleeve height of the front 4/5 in the steel passing process of the one steel loop is larger than 1, setting the height reduction amount of the tail sleeve of the loop to be 10% of the set sleeve height until the tail sleeve height is stable in the steel passing process of the one steel loop;

step four: when the ratio of the collected sleeve height of the rear 1/5 in the steel passing process of the one steel loop to the sleeve height of the front 4/5 in the steel passing process of the one steel loop is less than 1, setting the height reduction amount of the tail sleeve of the loop to be 5% of the set sleeve height until the tail sleeve is highly stable in the steel passing process of the one steel loop;

step five: when the ratio of the collected sleeve height of the rear 1/5 in the steel passing process of the steel loop to the sleeve height of the front 4/5 in the steel passing process of the steel loop is 1, the height reduction amount of the tail sleeve of the loop is set to be 7.5% of the set sleeve height, and the tail sleeve height stability in the steel passing process of the steel loop is maintained.

The further improvement lies in that: in the third step, the fourth step and the fifth step, the tail sleeve is high and stable in the steel passing process of one steel loop, namely the ratio of the sleeve height of the rear 1/5 in the steel passing process of one steel loop to the sleeve height of the front 4/5 in the steel passing process of one steel loop is 1.

The further improvement lies in that: in the first step, the sleeve height of 1/5 after a steel loop passes through the steel and the sleeve height of 4/5 before the steel loop passes through the steel are collected in real time at a time interval of 20-80ms each time.

The further improvement lies in that: in the second step, the loop tail height descending amount is the ratio of the difference between the loop high set value and the loop tail height set value, and the loop tail height descending amount is adjusted by adjusting the loop tail height in the second step.

The invention has the beneficial effects that:

1. the method comprises the steps of collecting and comparing the sleeve height of the rear 1/5 in the steel passing process of a steel loop with the sleeve height of the front 4/5 in the steel passing process of the steel loop in real time, and judging a ratio; set for the high decline volume of tail portion cover according to the ratio, it is high stable to cross steel in-process tail portion cover until a steel loop, can be fast, accurate, real-time and simple control loop afterbody play production bottleneck problems such as big set of whipping tail, prevent to finish rolling in advance and finish rolling and stay the tail, contain the problem that the steel piled the steel, avoid tail portion cover volume consumption to lead to the afterbody size to diminish at the excessive speed, guarantee the size at normal tolerance control scope.

2. The method collects the sleeve height of 1/5 after the steel passing process of a steel loop and the sleeve height of 4/5 before the steel passing process of a steel loop at intervals of 20-80ms each time, and can properly reduce the system calculation amount and reduce the system load while realizing the real-time data collection.

3. According to the invention, when the ratio of the sleeve height of the rear 1/5 in the steel passing process of one steel loop to the sleeve height of the front 4/5 in the steel passing process of one steel loop is acquired, the loop height reduction of the loop tail is adjusted once by 10% or 5% or 7.5%, and the adjustment mode greatly improves the adjustment precision of the loop tail height reduction and can more accurately carry out comprehensive adjustment and control on the tail steel.

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 fig. 1, the present embodiment provides a control system for comprehensive regulation and control of tail steel, including a loop height detector and an electronic control engineer station, where the loop height detector is connected to the electronic control engineer station, and the electronic control engineer station includes a loop height acquisition unit, a loop height comparison unit, and a tail loop height decrease amount adjustment unit;

the sleeve height detector is used for detecting the sleeve height of 1/5 after a steel loop passes through the steel in the steel process and the sleeve height of 4/5 before the steel loop passes through the steel in the steel process, the sleeve height acquisition unit is used for acquiring the sleeve height of 1/5 after the steel loop passes through the steel in the steel process and the sleeve height of 4/5 before the steel loop passes through the steel in the steel process, the sleeve height comparison unit is used for comparing the sleeve height of 1/5 after the steel loop passes through the steel in the steel process and the sleeve height of 4/5 before the steel loop passes through the steel in the steel process, which are acquired currently, to judge the ratio of the sleeve height of 1/5 after the steel loop passes through the steel to the sleeve height of 4/5 before the steel loop passes through the steel in the steel process, and the tail sleeve height adjustment unit is used for setting the sleeve height reduction of the living sleeve according to the ratio acquired currently.

The loop height detector comprises a digital display loop detector and a loop height analog quantity signal receiving module, the digital display loop detector acquires the loop height through on-site real-time scanning, and the loop height analog quantity signal receiving module receives the analog quantity signal of the loop height through a shielded cable.

The automatically controlled engineer station is computer workstation, and computer workstation connects loop height detector, the digital loop height that shows loop detector real-time scanning and collection discernment scene to the loop height analog signal that will gather transmits for loop height analog signal receiving module through shielded cable and calculates the processing, computer workstation receives the signal after the calculation processing, install Windows Control Center window Control Center system in the computer workstation, and Windows Control Center window Control Center system obtains a steel loop and crosses 1/5's behind the steel in-process set height, a steel loop and crosses 4/5's set height before the steel in-process according to the signal after the calculation processing.

The computer workstation is provided with a human-computer interaction interface, displays the height of the rear 1/5 in the steel passing process of a steel loop and the height of the front 4/5 in the steel passing process of a steel loop which are collected at present through an operation picture of a Windows Control Center window Control Center system, displays the height descending amount of the tail part of the steel loop through a display chart, and obtains the adjustment condition of the height descending amount of the tail part of the steel loop according to the chart displayed by the human-computer interaction interface.

Example two

According to the illustration in fig. 2, the embodiment provides a control method for comprehensive regulation and control of tail steel, which comprises the following steps:

the method comprises the following steps: detecting by using a loop height detector and acquiring by matching with a loop height acquisition unit to obtain the loop height of front 4/5 in the process of passing steel of a steel loop in real time, and then obtaining the loop height of rear 1/5 in the process of passing steel of the steel loop in real time, wherein the loop heights are acquired at a time interval of 70ms each time;

step two: comparing the obtained sleeve height of rear 1/5 with the sleeve height of front 4/5 in the steel passing process of the steel loop, calculating the ratio of the sleeve height of rear 1/5 in the steel passing process of the steel loop to the sleeve height of front 4/5 in the steel passing process of the steel loop, setting the sleeve height descending amount of the tail part of the loop according to the ratio, wherein the sleeve height descending amount of the tail part of the loop is the ratio of the difference between the sleeve height set value of the loop and the sleeve height set value of the tail part of the loop to the sleeve height set value of the loop, and adjusting the sleeve height descending amount of the tail part of the loop by adjusting the sleeve height of the tail part of the loop;

step three: when the ratio of the collected sleeve height of the rear 1/5 in the steel passing process of one steel loop to the sleeve height of the front 4/5 in the steel passing process of one steel loop is larger than 1, setting the sleeve height reduction amount of the tail of the loop to be 10% of the set sleeve height until the tail of the loop is highly stable in the steel passing process of one steel loop, namely the ratio of the sleeve height of the rear 1/5 in the steel passing process of one steel loop to the sleeve height of the front 4/5 in the steel passing process of one steel loop is 1;

step four: when the ratio of the collected sleeve height of the rear 1/5 in the steel passing process of the one steel loop to the sleeve height of the front 4/5 in the steel passing process of the one steel loop is less than 1, setting the sleeve height reduction amount of the tail of the loop to be 5% of the set sleeve height until the tail of the one steel loop is highly stable in the steel passing process, namely the ratio of the sleeve height of the rear 1/5 in the steel passing process of the one steel loop to the sleeve height of the front 4/5 in the steel passing process of the one steel loop is 1;

step five: when the ratio of the collected sleeve height of the rear 1/5 in the steel passing process of the steel loop to the sleeve height of the front 4/5 in the steel passing process of the steel loop is 1, the height reduction amount of the tail sleeve of the loop is set to be 7.5% of the set sleeve height, and the tail sleeve height stability in the steel passing process of the steel loop is kept, namely the ratio of the sleeve height of the rear 1/5 in the steel passing process of the steel loop to the sleeve height of the front 4/5 in the steel passing process of the steel loop is 1.

For example, if the ratio of the sleeve height of rear 1/5 in the steel passing process of a steel loop acquired at the time t0 to the sleeve height of front 4/5 in the steel passing process of the steel loop is greater than 1, the sleeve height reduction of the tail part is set to be 10% of the set sleeve height, and the sleeve height reduction of the tail part of the steel loop is adjusted once; the ratio of the sleeve height of the rear 1/5 in the steel passing process of the steel loop to the sleeve height of the front 4/5 in the steel passing process of the steel loop, which is acquired at the moment t1, is larger than 1, the sleeve height reduction amount of the tail part is set to be 10% of the set sleeve height again, and the sleeve height reduction amount of the tail part of the steel loop is adjusted once again; and analogizing in turn, the height stability of the tail sleeve in the steel passing process of one steel loop is acquired until a certain time tN, namely the ratio of the height of the rear 1/5 in the steel passing process of one steel loop to the height of the front 4/5 in the steel passing process of one steel loop is 1, in the embodiment, the numerical value is set to 10 percent, namely, the height of the tail sleeve of the loop is reduced by 10 percent when the height of the tail sleeve of the loop is reduced by 10 percent each time.

The method comprises the steps of collecting and comparing the sleeve height of the rear 1/5 in the steel passing process of a steel loop with the sleeve height of the front 4/5 in the steel passing process of the steel loop in real time, and judging a ratio; the descending amount of the tail sleeve height is set according to the ratio, until the tail sleeve height is stable in the process of one-steel loop passing steel, the production bottleneck problems of large sleeve swing and the like of the tail of the loop can be quickly, accurately, in real time and simply controlled, the problems of pre-finish rolling, tail remaining after finish rolling and steel containing steel piling are prevented, the tail size is reduced due to the fact that the tail sleeve amount is consumed too fast, the size is guaranteed to be in a normal tolerance control range, the sleeve height of 1/5 after one-steel loop passing steel in the process of one-steel loop passing steel and the sleeve height of 4/5 before one-steel loop passing steel in the process of one-steel loop are collected at intervals of 20-80ms each time, the calculation amount of a system can be properly reduced while real-time data collection is realized, the system load is reduced, and meanwhile, when the ratio of the sleeve height of 1/5 after one-steel loop passing steel in the process to the sleeve height of 4/5 before one-steel loop passing steel in the process is collected once, the height reduction of the sleeve at the tail part of the loop is adjusted once by 10 percent or 5 percent or 7.5 percent, and the adjustment mode greatly improves the adjustment precision of the height reduction of the sleeve at the tail part of the loop and can more accurately carry out comprehensive regulation and control on the tail steel.

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.