CN106435160A - Method and system for controlling the temperature in annealing furnace - Google Patents

Method and system for controlling the temperature in annealing furnace Download PDF

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Publication number
CN106435160A
CN106435160A CN201611042024.9A CN201611042024A CN106435160A CN 106435160 A CN106435160 A CN 106435160A CN 201611042024 A CN201611042024 A CN 201611042024A CN 106435160 A CN106435160 A CN 106435160A
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China
Prior art keywords
strip
annealing furnace
process section
temperature
annealing
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CN106435160B (en
Inventor
郑海燕
刘顺明
乔梁
李冠雄
王道金
余涛
韩帮才
陈文武
任伟超
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Shougang Jingtang United Iron and Steel Co Ltd
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Shougang Jingtang United Iron and Steel Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D11/00Process control or regulation for heat treatments
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26Methods of annealing
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54Furnaces for treating strips or wire
    • C21D9/56Continuous furnaces for strip or wire
    • C21D9/562Details

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

The invention discloses a method and system for controlling the temperature in an annealing furnace and applied to the field of automatic control. The method for controlling the temperature in the annealing furnace comprises the steps that the position of a strip head of a transition strip roll in the annealing furnace is monitored, wherein the transition strip roll is connected between a previous steel strip roll and a next steel strip roll; when it is monitored that a strip steel temperature monitoring point of an ith process section of the annealing furnace is reached at the position of the strip head of the transition strip roll, the strip steel temperature monitoring point of the ith process section of the annealing furnace is adjusted to the temperature required by annealing the ith process section of the annealing furnace, wherein i is 1 to N in sequence, and N represents the number of process section of the annealing furnace. The problem that selected time points for temperature transition are inaccurate is solved, further the annealing temperature required by automatic steel strip rolls is reached, and the stable mechanical properties of products are ensured.

Description

A kind of annealing furnace method for controlling temperature inner and system
Technical field
The present invention relates to automation field, more particularly, to a kind of annealing furnace method for controlling temperature inner and system.
Background technology
In order to pursue higher benefit, the product variety specification that cold rolling continuous post treatment line produces is increasingly diversified, to moving back For stove, diversified product variety specification means that frequently temperature transition.How to accomplish that temperature plateau transition is into Impact stove stable operation and the key factor of product quality.
In prior art, the experience with operative employee and operating habit carry out temperature transition entirely, and the operation easier of operative employee is big, The time point selection to temperature transition of lacking experience of operative employee is inaccurate, the inaccurate meeting of time started point selection of temperature transition Cause strip not reach the annealing temperature of requirement, cause product mechanical performance unqualified, and then produce waste product or degradation product.
Content of the invention
In view of the above problems, a kind of annealing furnace method for controlling temperature inner and system are embodiments provided, with accurate Determine that the sart point in time of temperature transition carries out temperature transition in annealing furnace.
Embodiments provide a kind of annealing furnace method for controlling temperature inner, including:
The position taken the lead in annealing furnace of monitoring transition volume, wherein, described transition volume be connected to a coil of strip and next Between coil of strip;
When the belt steel temperature monitoring point taking the lead position arrival annealing furnace i-th process section monitoring described transition volume When, the strip design temperature of described annealing furnace i-th process section is adjusted to next coil of strip described in described annealing furnace i-th process section Annealing temperature required, wherein, i takes the technique segment number that 1 to N, N are described annealing furnace successively.
Preferably, the position taken the lead in annealing furnace of described monitoring transition volume, including:By weld joint tracking, position institute State the attachment weld taken the lead and a described upper coil of strip between of transition volume;Described transition is determined according to the described attachment weld of positioning The position taken the lead in described annealing furnace of volume.
Preferably, the described strip design temperature by described annealing furnace i-th process section is adjusted to next coil of strip described in institute The annealing stating annealing furnace i-th process section is temperature required, including:From described transition volume take the lead reach described annealing furnace i-th technique The belt steel temperature monitoring point of section starts, by described annealing during described transition volume operates in described annealing furnace i-th process section The strip design temperature of stove i-th process section carries out repeatedly adjusting once or with the first prefixed time interval, with reach described next Coil of strip is temperature required in the annealing of described annealing furnace i-th process section, wherein, single that described strip design temperature is adjusted Regulated quantity≤5 DEG C, described first prefixed time interval >=2min.
Preferably, a described upper coil of strip described annealing furnace i-th process section annealing temperature required than next coil of strip described When the annealing of described annealing furnace i-th process section is temperature required high, the described strip by described annealing furnace i-th process section sets temperature Degree regulation is temperature required in the annealing of described annealing furnace i-th process section to next coil of strip described, including:Band from described transition volume Head starts in the belt steel temperature monitoring point of described annealing furnace i-th process section, operates in described annealing furnace i-th work in described transition volume During skill section and next coil of strip described leading portion operate in described annealing furnace i-th process section during, by described annealing furnace The strip design temperature of the i-th process section is repeatedly reduced with the second prefixed time interval, is moved back described with reaching next coil of strip described The annealing of stove i-th process section is temperature required, wherein, described second prefixed time interval >=2min, temperature is set to described strip Spend single regulated quantity≤5 DEG C being reduced.
Preferably, a described upper coil of strip temperature required exists than next coil of strip described in the annealing of described annealing furnace i-th process section When described annealing furnace i-th process section anneals temperature required low, in the described strip design temperature by described annealing furnace i-th process section Adjust to next coil of strip described before the annealing of described annealing furnace i-th process section is temperature required, methods described also includes:Monitoring To a described upper steel default reach described annealing furnace i-th process section with rear belt steel temperature monitoring point when, by described annealing The strip design temperature of stove i-th process section raises at least one times;
The described strip design temperature by described annealing furnace i-th process section is adjusted to next coil of strip described in described annealing furnace The annealing of the i-th process section is temperature required, including:During described transition volume operates in described annealing furnace i-th process section, by institute The strip design temperature stating annealing furnace i-th process section is repeatedly raised with the 3rd prefixed time interval, to reach next coil of strip i-th Process section annealing design temperature, wherein, described three prefixed time interval >=2min, described strip design temperature is raised Single regulated quantity≤5 DEG C.
Second aspect, embodiments provides a kind of annealing in-furnace temperature control system, including:
First monitoring unit, for monitoring the position taken the lead in annealing furnace of transition volume, wherein, described transition volume connects Between a upper coil of strip and next coil of strip;
Adjustment unit, for when the band taking the lead position arrival annealing furnace i-th process section monitoring described transition volume During steel temperature monitoring point, the strip design temperature of described annealing furnace i-th process section is adjusted and moves back described to next coil of strip described The annealing of stove i-th process section is temperature required, and wherein, i takes the technique segment number that 1 to N, N are described annealing furnace successively.
Preferably, described first monitoring unit, including:
Locator unit, for by weld joint tracking, positioning taking the lead and a described upper coil of strip between of described transition volume Attachment weld;
Determination subelement, for determining the taking the lead in described annealing furnace of described transition volume according to the described attachment weld of positioning Interior position.
Preferably, described adjustment unit, including:
First regulator unit, reaches the strip temperature of described annealing furnace i-th process section for taking the lead of rolling up from described transition Degree monitoring point starts, by described annealing furnace i-th process section during described transition volume operates in described annealing furnace i-th process section Strip design temperature carry out repeatedly adjusting once or with the first prefixed time interval, moved back described with reaching next coil of strip described The annealing of stove i-th process section is temperature required, wherein, single regulated quantity≤5 DEG C that described strip design temperature is adjusted, Described first prefixed time interval >=2min.
Preferably, described adjustment unit includes:
Reduce regulator unit, for a described upper coil of strip described annealing furnace i-th process section the temperature required ratio of annealing Next coil of strip described, when the annealing of described annealing furnace i-th process section is temperature required high, is taken the lead described from what described transition was rolled up The belt steel temperature monitoring point of annealing furnace i-th process section starts, and operates in described annealing furnace the i-th process section process in described transition volume In and next coil of strip described leading portion operate in described annealing furnace i-th process section during, by described annealing furnace i-th process section Strip design temperature repeatedly reduced with the second prefixed time interval, to reach next coil of strip described in described annealing furnace i-th work The annealing of skill section is temperature required, wherein, described second prefixed time interval >=2min, reduces to described strip design temperature Single regulated quantity≤5 DEG C.
Preferably, a described upper coil of strip temperature required exists than next coil of strip described in the annealing of described annealing furnace i-th process section When described annealing furnace i-th process section anneals temperature required low, described annealing in-furnace temperature control system also includes;
Second regulator unit, the default band rear for monitoring a described upper steel reaches described annealing furnace i-th technique During the belt steel temperature monitoring point of section, the strip design temperature of described annealing furnace i-th process section is raised at least one times;
Described adjustment unit, including:Raise sub- adjustment unit, for operating in described annealing furnace i-th when described transition volume During process section, the strip design temperature of described annealing furnace i-th process section is repeatedly raised with the 3rd prefixed time interval, with Reach next coil of strip in the i-th process section annealing design temperature, wherein, described three prefixed time interval >=2min, to described band Single regulated quantity≤5 DEG C that steel design temperature is raised.
The one or more technical schemes providing in the embodiment of the present invention, at least have the following technical effect that or advantage:
By by monitor transition volume the position taken the lead in annealing furnace such that it is able to monitor transition volume take the lead institute Whether reach the belt steel temperature monitoring point of annealing furnace i-th process section in position, thus monitor transition volume take the lead position Whether reach annealing furnace i-th process section belt steel temperature monitoring point when as temperature transition sart point in time, from this time Point start by the strip design temperature of annealing furnace i-th process section adjust to next coil of strip annealing furnace i-th process section annealing institute Need temperature.So as to accurately define every time thermoregulator sart point in time be all transition volume take the lead reach belt steel temperature prison During measuring point, then it is avoided that the sart point in time difference of the temperature transition that the difference of operative employee's operating experience and level can cause, with Solve the inaccurate problem of time point selection of temperature transition, and then Automated condtrol becomes specification strip steel and produces required annealing temperature Degree is it is ensured that product stable mechanical performance.
Further, on the one hand, by the strip design temperature of annealing furnace i-th process section with second Preset Time of >=2min Interval carries out temperature adjustment (being raised and lowered), temperature required in the annealing of annealing furnace i-th process section to reach next coil of strip, from And after achieving each regulation desired temperature, be to adjust desired temperature again after actual temperature is followed and reached setting value 's;On the other hand, single regulated quantity≤5 DEG C that strip design temperature reduced are it is ensured that heating and cooling amplitude within 10 minutes Less than 30 DEG C.This 2 points combination make become specification strip steel produce when annealing temperature smooth transition, and then avoid due to The too fast strip causing of excessive temperature differentials, temperature change sideslip or the problem of wooden dipper song in stove, therefore improves product quality While ensure that equipment safety in stove.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis The accompanying drawing providing obtains other accompanying drawings.
Fig. 1 is the flow chart of annealing furnace method for controlling temperature inner in the embodiment of the present invention;
Fig. 2 is the module map of annealing in-furnace temperature control system in the embodiment of the present invention.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is The a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment being obtained under the premise of not making creative work, broadly falls into the scope of protection of the invention.
With reference to shown in Fig. 1, a kind of annealing furnace method for controlling temperature inner provided in an embodiment of the present invention, including:
S101, monitoring transition volume the position taken the lead in annealing furnace, wherein, transition volume be connected to a coil of strip and next Between coil of strip.
Specifically, S101 includes:By weld joint tracking, the connection weldering taken the lead and a upper coil of strip between of bit transitions volume Seam;Determine the position taken the lead in annealing furnace of described transition volume according to the attachment weld of positioning.
Weld joint tracking can be carried out by the weld joint tracking subprogram in annealing furnace control program, thus real-time bit transitions Position in annealing furnace for the volume.
S102, when monitor transition volume take the lead position reach annealing furnace i-th process section belt steel temperature monitoring point When, the strip design temperature of annealing furnace i-th process section is adjusted to next coil of strip in temperature needed for the annealing of annealing furnace i-th process section Degree, wherein, i takes 1 to N successively, and N is the technique segment number of annealing furnace.
Specifically, it is including following process section with annealing furnace:Preheating section, bringing-up section, soaking zone, slow cooling section, rapid cooling section, mistake Aging section, cold section eventually, water quenching section, as a example the continuous annealing furnace of heated-air drying section, each process section corresponding is respectively arranged with strip Temperature monitoring point, then i take 1,2,3,4,5,6,7,8,9 successively.Then specifically, what monitoring transition was rolled up takes the lead in annealing furnace Position, when monitoring when taking the lead the belt steel temperature monitoring point reaching annealing furnace first process section (i.e. preheating section) of transition volume, will The strip design temperature of annealing furnace preheating section adjusts temperature required in the annealing of annealing furnace preheating section to next coil of strip;Monitored Cross when taking the lead the belt steel temperature monitoring point reaching annealing furnace second process section (i.e. bringing-up section) of volume, by the band of annealing furnace bringing-up section Steel design temperature adjusts temperature required in the annealing of annealing furnace bringing-up section to next coil of strip;Monitor taking the lead to reach and moving back of transition volume During the belt steel temperature monitoring point of stove the 3rd process section (i.e. soaking zone), by the strip design temperature of annealing furnace soaking zone adjust to Next coil of strip is temperature required in the annealing of annealing furnace bringing-up section.Successively, subsequently monitor transition volume take the lead reach annealing When stove the three, the four, the five, the six, the seven, the 8th, nine process sections, by the three, the four, the five, the six, the seven, the 8th, The annealed strip design temperature of the 9th process section is corresponding to be adjusted to next coil of strip the 3rd, the 4th, the 5th, the 6th, the 7th, the 8th, the annealing of the 9th process section is temperature required.
It is embodied as situation for one kind:The strip adjusting annealing furnace i-th process section enough in the length of transition volume sets Constant temperature degree.Then reach the belt steel temperature monitoring point of annealing furnace i-th process section in next coil of strip before, adjust annealing furnace i-th technique It is temperature required in the annealing of annealing furnace i-th process section that the strip design temperature of section reaches next coil of strip, implements flow process as follows:
From the beginning of the belt steel temperature monitoring point taking the lead to reach annealing furnace i-th process section monitoring transition volume, in transition volume During operating in annealing furnace i-th process section, the strip design temperature of annealing furnace i-th process section is carried out once or pre- with first If time interval is repeatedly adjusted, temperature required in the annealing of annealing furnace i-th process section to reach next coil of strip, wherein, to strip Single regulated quantity≤5 DEG C that design temperature is adjusted, the first prefixed time interval >=2min.
First prefixed time interval >=2min, single regulated quantity≤5 DEG C, thus ensure that each belt steel temperature that adjusts sets After value, strip actual temperature can follow the belt steel temperature setting value reaching this regulation, and then ensure that strip actual temperature Reach belt steel temperature setting value and just adjust belt steel temperature setting value again.For example, the first prefixed time interval can be 2min, 3min, 4min, 5min, 6min, 7min, 8min, 9min etc..
For example, single regulated quantity can be 1 DEG C, 2 DEG C, 3 DEG C, 4 DEG C, 5 DEG C etc..Further, concrete restriction is single Secondary regulated quantity is 2~3 DEG C, and strip actual temperature change can be made gentler.
In the present embodiment, transition volume is connected to volume two and anneals between temperature required different coil of strip, and a kind of situation is:On One coil of strip is temperature required temperature required higher in the annealing of annealing furnace i-th process section than next coil of strip in the annealing of annealing furnace i-th process section, Another kind of situation is:A upper coil of strip annealing furnace i-th process section annealing temperature required than next coil of strip in annealing furnace i-th process section Anneal temperature required low.
A upper coil of strip annealing furnace i-th process section annealing temperature required than next coil of strip annealing furnace i-th process section anneal Under temperature required high performance, it is to need the strip design temperature of annealing furnace i-th process section from high temperature to low temperature transition, Then:From the beginning of the belt steel temperature monitoring point taking the lead to reach annealing furnace i-th process section of transition volume, operate in annealing furnace in transition volume During i-th process section, the strip design temperature of annealing furnace i-th process section is carried out once or many with the first prefixed time interval Secondary rising, temperature required in the annealing of annealing furnace i-th process section to reach next coil of strip.
For the present embodiment, taking the bringing-up section of annealing furnace as a example, an above coil of strip in the annealing of bringing-up section temperature required is 760 DEG C, next coil of strip bringing-up section annealing temperature required be 750 DEG C for a specific example:Single regulated quantity is 2 DEG C, First prefixed time interval is 2min, then, will anneal when taking the lead to reach the belt steel temperature monitoring point in bringing-up section from transition volume Stove reduces by 2 DEG C to be adjusted to 758 DEG C afterwards in the strip design temperature of bringing-up section, at interval of the 2min just band after last time regulation On the basis of steel design temperature reduce by 2 DEG C, then the strip design temperature of annealing furnace bringing-up section be reduced to successively 756 DEG C, 754 DEG C, 752 DEG C, 750 DEG C.
For the present embodiment, an above coil of strip in the annealing of soaking zone temperature required is taking the soaking zone of annealing furnace as a example 770 DEG C, next coil of strip soaking zone annealing temperature required be 760 DEG C, more for a specific example:Single regulated quantity is 5 DEG C, as a example the first prefixed time interval is 4min, then from transition volume when taking the lead to reach the belt steel temperature monitoring point in soaking zone, Annealing furnace is reduced by 5 DEG C to be adjusted to 765 DEG C afterwards in the strip design temperature of soaking zone, 4min was just adjusted in last time at interval Reduce by 5 DEG C afterwards, then the strip design temperature of annealing furnace soaking zone is just reduced to 760 DEG C on the basis of strip design temperature.
For the present embodiment, an above coil of strip preheating section annealing temperature required be 680 DEG C, next coil of strip is in preheating section Annealing temperature required be 685 DEG C, more for a specific example:Single regulated quantity be 5 DEG C, then from transition volume take the lead reach When the belt steel temperature monitoring point of preheating section, annealing furnace is once reduced by 5 DEG C to be adjusted in the strip design temperature of preheating section 685℃.
Temperature required move back in annealing furnace i-th process section than next coil of strip in the annealing of annealing furnace i-th process section in a upper coil of strip Under the temperature required low performance of fire:The upper coil of strip that both sides are rolled up in transition is temperature required in the annealing of annealing furnace i-th process section Than next coil of strip annealing under temperature required low performance in annealing furnace i-th process section:Taking the lead to reach and move back from transition volume The belt steel temperature monitoring point of stove i-th process section starts, and during transition volume operates in annealing furnace i-th process section, will anneal The strip design temperature of stove i-th process section carries out repeatedly raising once or with the first prefixed time interval, to reach next coil of strip Temperature required in the annealing of annealing furnace i-th process section, wherein, single regulated quantity≤5 DEG C that strip design temperature is adjusted, First prefixed time interval >=2min.
For the present embodiment, an above coil of strip bringing-up section annealing temperature required be 680 DEG C, next coil of strip is in bringing-up section Annealing temperature required be 695 DEG C as a example, for a specific example:3 DEG C of single regulated quantity, the first prefixed time interval is 7min, then, when taking the lead to reach the belt steel temperature monitoring point in bringing-up section annealing furnace is set in the strip of bringing-up section from transition volume Constant temperature degree raises 3 DEG C to be adjusted to 683 DEG C afterwards, at interval of 7min just on the basis of the strip design temperature after last time regulation Raise 3 DEG C, then the strip design temperature of annealing furnace bringing-up section is increased to 686 DEG C, 689 DEG C, 692 DEG C, 695 DEG C successively.
For the present embodiment, an above coil of strip soaking zone annealing temperature required be 700 DEG C, next coil of strip is in soaking zone Annealing temperature required be 704 DEG C, more for a specific example:Single regulated quantity is 4 DEG C, then what transition was rolled up takes the lead to reach all During the belt steel temperature monitoring point of hot arc, annealing furnace is once raised 4 DEG C to be adjusted to 704 in the strip design temperature of soaking zone ℃.
For the present embodiment, an above coil of strip preheating section annealing temperature required be 670 DEG C, next coil of strip is in preheating section Annealing temperature required be 680 DEG C, more for a specific example:Single regulated quantity is followed successively by:4 DEG C, 2 DEG C, first default when Between be spaced apart 6min, then transition volume take the lead reach when the belt steel temperature monitoring point of preheating section by annealing furnace preheating section band Steel design temperature raises 4 DEG C being adjusted to 674 DEG C afterwards, the base of the just strip design temperature after last time is adjusted after the 6min of interval 3 DEG C are raised, then the strip design temperature of annealing furnace preheating section changes into 678 DEG C, 680 DEG C successively on plinth.
Need specification, the aforesaid plurality of strip design temperature adjusting annealing furnace i-th process section reaches next coil of strip In the temperature required embodiment of the annealing of annealing furnace i-th process section by way of example only, in specific implementation process, every time to band The single regulated quantity that steel design temperature is adjusted is to continue to optimize the final temperature control determining and being suitable for producing in production practices Optimal value processed.In the controls, corresponding every kind of temperature difference, each process section corresponding stores one group of temperature control optimal value, often Group optimal value includes:Single regulated quantity and very first time interval.Such as, aforementioned:One group of single regulated quantity (4 DEG C, 2 DEG C), first Prefixed time interval 6min is one group of temperature control for preheating section.
It is embodied as situation for another kind:Temperature span is larger, is insufficient to adjust annealing furnace in the length of transition volume The strip design temperature of the i-th process section, then be directed to a upper coil of strip annealing furnace i-th process section annealing temperature required than next coil of strip Postpone cooling under annealing furnace i-th process section anneals temperature required high performance;For a upper coil of strip in annealing furnace i-th work The annealing of skill section is temperature required to rise under annealing furnace i-th process section anneals temperature required low performance in advance than next coil of strip Temperature.
Specifically, it is as follows that what delay was lowered the temperature implements flow process:
From the beginning of the taking the lead in the belt steel temperature monitoring point of annealing furnace i-th process section of transition volume, operate in and move back in transition volume During stove i-th process section and next coil of strip leading portion operate in annealing furnace i-th process section during, by annealing furnace i-th The strip design temperature of process section is repeatedly reduced with the second prefixed time interval, to reach next coil of strip in annealing furnace i-th technique The annealing of section is temperature required, wherein, the second prefixed time interval >=2min, the single that strip design temperature is reduced is adjusted ≤ 5 DEG C of amount;
It should be noted that in the present embodiment, the second prefixed time interval >=2min, drops to strip design temperature Low single regulated quantity≤5 DEG C, thus after ensure that each regulation belt steel temperature setting value, strip actual temperature can be followed and be reached The belt steel temperature setting value reducing to this, and then ensure that strip actual temperature reaches belt steel temperature setting value and just reduces again Belt steel temperature setting value.Further, the first prefixed time interval is 2min in the present embodiment, and single regulated quantity is 5 DEG C, makes On the premise of after ensureing every time to adjust belt steel temperature setting value, strip actual temperature can be followed, also reduce as far as possible under The impact length of one coil of strip, without affecting high warm rolling (coil of strip on the present embodiment middle finger).
It is exemplified below, temperature required temperature difference of annealing between a upper coil of strip and next coil of strip is 100 DEG C, mistake Cross volume 30 minutes pass through annealing furnace i-th process section, then with the second prefixed time interval as 2min, single regulated quantity be 5 DEG C Under the premise of, during transition volume operates in annealing furnace i-th process section, strip design temperature reduces by 80 DEG C.Subsequently in next steel Volume, in annealing furnace i-th process section, also with 2min for 4 reduction strip design temperatures of time interval, is being moved back with reaching next coil of strip The annealing of stove i-th process section is temperature required.
Specifically, heat up in advance to implement flow process as follows:Monitor that the default band rear of a steel reaches annealing furnace During the belt steel temperature monitoring point of the i-th process section, the strip design temperature of annealing furnace i-th process section is raised at least one times;Serve as Cross during volume operates in annealing furnace i-th process section, by the strip design temperature of annealing furnace i-th process section with the 3rd Preset Time Interval repeatedly raises, to reach next coil of strip in the i-th process section annealing design temperature.
It is exemplified below, temperature required temperature difference of annealing between a upper coil of strip and next coil of strip is 90 DEG C, mistake Cross volume 30 minutes pass through annealing furnace i-th process section, then with the second prefixed time interval as 2min, single regulated quantity be 5 DEG C Under the premise of, during transition volume operates in annealing furnace i-th process section, strip design temperature raises 80 DEG C.Then in a upper coil of strip Band rear, also with 2min for time interval 2 times rising strip design temperatures.Monitor that the default band rear of a steel reaches to move back The belt steel temperature monitoring point of stove i-th process section starts:Transition volume operates in annealing furnace the during annealing furnace i-th process section The strip design temperature of i process section repeatedly raises strip design temperature with 2min for time interval, to reach next coil of strip i-th Process section annealing design temperature.
It should be noted that in the present embodiment, three prefixed time interval >=2min, strip design temperature is risen High single regulated quantity≤5 DEG C, thus after ensure that each regulation belt steel temperature setting value, strip actual temperature can be followed and be reached To this belt steel temperature setting value after raising, and then ensure that strip actual temperature reaches belt steel temperature setting value and just rises again High strip desired temperature.Further, the 3rd prefixed time interval is 2min in the present embodiment, and single regulated quantity is 5 DEG C, Enable on the premise of after ensureing every time to adjust belt steel temperature setting value, strip actual temperature is followed, it is right also to reduce as far as possible The annealing effect length of a upper coil of strip, and do not interfere with high warm rolling (next coil of strip of the present embodiment middle finger) completely.
Based on same inventive concept, embodiments provide a kind of annealing in-furnace temperature control system, with reference to Fig. 2 institute Show, this annealing in-furnace temperature control system includes:
First monitoring unit 201, for monitoring the position taken the lead in annealing furnace of transition volume, wherein, transition volume connects Between a upper coil of strip and next coil of strip;
Adjustment unit 202, for when the strip taking the lead position arrival annealing furnace i-th process section monitoring transition volume During temperature monitoring point, the strip design temperature of annealing furnace i-th process section is adjusted to next coil of strip in annealing furnace i-th process section Annealing is temperature required, and wherein, i takes 1 to N successively, and N is the technique segment number of annealing furnace.
Preferably, the first monitoring unit 201, including:
Locator unit, for by weld joint tracking, the attachment weld taken the lead and a upper coil of strip between of bit transitions volume;
Determination subelement, for determining the position taken the lead in annealing furnace of transition volume according to the attachment weld of positioning.
Preferably, adjustment unit 202, including:
First regulator unit, reaches the belt steel temperature monitoring point of annealing furnace i-th process section for taking the lead of rolling up from transition Start, during transition volume operates in annealing furnace i-th process section, the strip design temperature of annealing furnace i-th process section is carried out one Secondary or repeatedly adjusted with the first prefixed time interval, temperature required in the annealing of annealing furnace i-th process section to reach next coil of strip, Wherein, single regulated quantity≤5 DEG C strip design temperature being adjusted, the first prefixed time interval >=2min.
Preferably, adjustment unit 202 includes:
Reduce regulator unit, for a upper coil of strip annealing furnace i-th process section annealing temperature required than next coil of strip When the annealing of annealing furnace i-th process section is temperature required high, from the belt steel temperature taken the lead in annealing furnace i-th process section of transition volume Monitoring point starts, during transition volume operates in annealing furnace i-th process section and the leading portion of next coil of strip operates in annealing furnace During i-th process section, the strip design temperature of annealing furnace i-th process section is repeatedly reduced with the second prefixed time interval, with The annealing reaching next coil of strip in annealing furnace i-th process section is temperature required, and wherein, the second prefixed time interval >=2min, to band Single regulated quantity≤5 DEG C that steel design temperature is reduced;
Preferably, a upper coil of strip annealing furnace i-th process section annealing temperature required than next coil of strip in annealing furnace i-th technique When section annealing is temperature required low, annealing in-furnace temperature control system also includes;
Second regulator unit, for monitoring the default strip reaching annealing furnace i-th process section with rear of a upper steel During temperature monitoring point, the strip design temperature of annealing furnace i-th process section is raised at least one times;
Adjustment unit 202, including:Raise sub- adjustment unit, for operating in annealing furnace the i-th process section process when transition volume In, the strip design temperature of annealing furnace i-th process section is repeatedly raised with the 3rd prefixed time interval, is existed with reaching next coil of strip I-th process section annealing design temperature, wherein, three prefixed time interval >=2min, the list that strip design temperature is raised Secondary regulated quantity≤5 DEG C.
By the embodiment providing in the embodiments of the present invention, at least have the following technical effect that or advantage:
By by monitor transition volume the position taken the lead in annealing furnace such that it is able to monitor transition volume take the lead institute Whether reach the belt steel temperature monitoring point of annealing furnace i-th process section in position, thus monitor transition volume take the lead position Whether reach annealing furnace i-th process section belt steel temperature monitoring point when as temperature transition sart point in time, from this time Point start by the strip design temperature of annealing furnace i-th process section adjust to next coil of strip annealing furnace i-th process section annealing institute Need temperature.So as to accurately define every time thermoregulator sart point in time be all transition volume take the lead reach belt steel temperature prison During measuring point, then it is avoided that the sart point in time difference of the temperature transition that the difference of operative employee's operating experience and level can cause, with Solve the inaccurate problem of time point selection of temperature transition, and then Automated condtrol becomes specification strip steel and produces required annealing temperature Degree is it is ensured that product stable mechanical performance.
Further, on the one hand, by the strip design temperature of annealing furnace i-th process section with second Preset Time of >=2min Interval carries out temperature adjustment (being raised and lowered), temperature required in the annealing of annealing furnace i-th process section to reach next coil of strip, from And after achieving each regulation desired temperature, be to adjust desired temperature again after actual temperature is followed and reached setting value 's;On the other hand, single regulated quantity≤5 DEG C that strip design temperature reduced are it is ensured that heating and cooling amplitude within 10 minutes Less than 30 DEG C.This 2 points combination make become specification strip steel produce when annealing temperature smooth transition, and then avoid due to The too fast strip causing of excessive temperature differentials, temperature change sideslip or the problem of wooden dipper song in stove, therefore improves product quality While ensure that equipment safety in stove.
Algorithm and display be not inherently related to any certain computer, virtual system or miscellaneous equipment provided herein. Various general-purpose systems can also be used together with based on teaching in this.According to each description above, construct this kind of system and wanted The structure asked is obvious.Additionally, the present invention is also not for any certain programmed language.It is understood that, it is possible to use each Plant the content that programming language realizes invention described herein, and the description above language-specific done is to disclose this The preferred forms of invention.
In specification mentioned herein, illustrate a large amount of details.It is to be appreciated, however, that the enforcement of the present invention Example can be put into practice in the case of not having these details.In some instances, known method, structure are not been shown in detail And technology, so as not to obscure the understanding of this description.
Similarly it will be appreciated that in order to simplify the disclosure and help understand one or more of each inventive aspect, Above in the description to the exemplary embodiment of the present invention, each feature of the present invention is grouped together into single enforcement sometimes In example, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following intention:I.e. required guarantor The application claims of shield more features than the feature being expressly recited in each claim.More precisely, it is such as following Claims reflected as, inventive aspect is all features less than single embodiment disclosed above.Therefore, The claims following specific embodiment are thus expressly incorporated in this specific embodiment, wherein each claim itself All as the separate embodiments of the present invention.
Those skilled in the art are appreciated that and the module in the equipment in embodiment can be carried out adaptively Change and they are arranged in one or more equipment different from this embodiment.Can be the module in embodiment or list Unit or assembly be combined into a module or unit or assembly, and can be divided in addition multiple submodule or subelement or Sub-component.In addition to such feature and/or at least some of process or unit exclude each other, can adopt any Combination is to all features disclosed in this specification (including adjoint claim, summary and accompanying drawing) and so disclosed Where method or all processes of equipment or unit are combined.Unless expressly stated otherwise, this specification (includes adjoint power Profit requires, summary and accompanying drawing) disclosed in each feature can carry out generation by the alternative features providing identical, equivalent or similar purpose Replace.
Although additionally, it will be appreciated by those of skill in the art that some embodiments described herein include other embodiments In included some features rather than further feature, but the combination of the feature of different embodiment means to be in the present invention's Within the scope of and form different embodiments.For example, in the following claims, embodiment required for protection appoint One of meaning can in any combination mode using.
The all parts embodiment of the present invention can be realized with hardware, or to run on one or more processor Software module realize, or with combinations thereof realize.It will be understood by those of skill in the art that can use in practice Microprocessor or digital signal processor (DSP) are taken the photograph realizing intelligent camera system according to embodiments of the present invention and network Some or all functions as some or all parts in head.The present invention is also implemented as being retouched here for execution Some or all equipment of the method stated or system program (as computer program and computer program).So The program realizing the present invention can store on a computer-readable medium, or can have the shape of one or more signal Formula.Such signal can be downloaded from internet website and obtain, or provides on carrier signal, or with any other shape Formula provides.
It should be noted that the various embodiments described above the present invention will be described rather than limits the invention, and Those skilled in the art can design alternative embodiment without departing from the scope of the appended claims.In claim In, any reference symbol between bracket should not be configured to limitations on claims.Word "comprising" is not excluded for There is element not listed in the claims or step.Word "a" or "an" before element does not exclude the presence of many Individual such element.The present invention can be by means of the hardware including some different elements and by means of properly programmed calculating Machine is realizing.If in the unit claim listing dry systems, several in these systems can be by same Hardware branch is embodying.The use of word first, second and third class does not indicate that any order.These words can be explained For title.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to including excellent Select embodiment and fall into being had altered and changing of the scope of the invention.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprise these changes and modification.

Claims (10)

1. a kind of annealing furnace method for controlling temperature inner is it is characterised in that include:
The position taken the lead in annealing furnace of monitoring transition volume, wherein, described transition volume is connected to a coil of strip and next coil of strip Between;
When monitoring when taking the lead the belt steel temperature monitoring point that position reaches annealing furnace i-th process section of described transition volume, will The strip design temperature of described annealing furnace i-th process section is adjusted to described next coil of strip moving back in described annealing furnace i-th process section Fire is temperature required, and wherein, i takes the technique segment number that 1 to N, N are described annealing furnace successively.
2. annealing furnace method for controlling temperature inner as claimed in claim 1 it is characterised in that described monitoring transition volume take the lead Position in annealing furnace, including:
By weld joint tracking, position the attachment weld taken the lead and a described upper coil of strip between of described transition volume;
Determine the position taken the lead in described annealing furnace of described transition volume according to the described attachment weld of positioning.
3. annealing furnace method for controlling temperature inner as claimed in claim 1 it is characterised in that described by described annealing furnace i-th work The strip design temperature of skill section adjust temperature required in the annealing of described annealing furnace i-th process section to next coil of strip described, including:
From the beginning of the belt steel temperature monitoring point taking the lead to reach described annealing furnace i-th process section of described transition volume, in described transition The strip design temperature of described annealing furnace i-th process section is carried out once during operating in described annealing furnace i-th process section by volume Or repeatedly adjusted with the first prefixed time interval, to reach the annealing institute in described annealing furnace i-th process section for next coil of strip described Need temperature, wherein, single regulated quantity≤5 DEG C that described strip design temperature is adjusted, described first prefixed time interval ≥2min.
4. annealing furnace method for controlling temperature inner as claimed in claim 1 is it is characterised in that a described upper coil of strip is in described annealing The annealing of stove i-th process section is temperature required temperature required higher in the annealing of described annealing furnace i-th process section than next coil of strip described When, the described strip design temperature by described annealing furnace i-th process section is adjusted to next coil of strip described in described annealing furnace i-th work The annealing of skill section is temperature required, including:
From described transition volume take the lead in the belt steel temperature monitoring point of described annealing furnace i-th process section from the beginning of, described transition volume During operating in described annealing furnace i-th process section and the leading portion of next coil of strip described operates in described annealing furnace i-th technique During section, the strip design temperature of described annealing furnace i-th process section is repeatedly reduced with the second prefixed time interval, to reach Next coil of strip described is temperature required in the annealing of described annealing furnace i-th process section, wherein, described second prefixed time interval >= 2min, single regulated quantity≤5 DEG C that described strip design temperature is reduced.
5. annealing furnace method for controlling temperature inner as claimed in claim 1 is it is characterised in that a described upper coil of strip is in described annealing Stove i-th process section annealing temperature required than next coil of strip described described annealing furnace i-th process section annealing temperature required low when, The described strip design temperature by described annealing furnace i-th process section is adjusted to next coil of strip described in described annealing furnace i-th technique Before the annealing of section is temperature required, methods described also includes:
Monitor a described upper steel default reach described annealing furnace i-th process section with rear belt steel temperature monitoring point when, will The strip design temperature of described annealing furnace i-th process section raises at least one times;
The described strip design temperature by described annealing furnace i-th process section is adjusted to next coil of strip described in described annealing furnace i-th The annealing of process section is temperature required, including:
During described transition volume operates in described annealing furnace i-th process section, the strip of described annealing furnace i-th process section is set Constant temperature degree is repeatedly raised with the 3rd prefixed time interval, with reach next coil of strip i-th process section anneal design temperature, wherein, Described three prefixed time interval >=2min, single regulated quantity≤5 DEG C that described strip design temperature is raised.
6. a kind of annealing in-furnace temperature control system is it is characterised in that include:
First monitoring unit, for monitoring the position taken the lead in annealing furnace of transition volume, wherein, described transition volume is connected to Between one coil of strip and next coil of strip;
Adjustment unit, for when the strip temperature taking the lead position arrival annealing furnace i-th process section monitoring described transition volume During degree monitoring point, the strip design temperature of described annealing furnace i-th process section is adjusted to next coil of strip described in described annealing furnace The annealing of the i-th process section is temperature required, and wherein, i takes the technique segment number that 1 to N, N are described annealing furnace successively.
7. annealing in-furnace temperature control system as claimed in claim 6 is it is characterised in that described first monitoring unit, including:
Locator unit, for by weld joint tracking, positioning the connection taken the lead and a described upper coil of strip between of described transition volume Weld seam;
Determination subelement, for determining the taking the lead in described annealing furnace of described transition volume according to the described attachment weld of positioning Position.
8. annealing in-furnace temperature control system as claimed in claim 6 is it is characterised in that described adjustment unit, including:
First regulator unit, for the belt steel temperature prison taking the lead to reach described annealing furnace i-th process section rolled up from described transition Measuring point starts, by the band of described annealing furnace i-th process section during described transition volume operates in described annealing furnace i-th process section Steel design temperature carries out repeatedly adjusting once or with the first prefixed time interval, to reach next coil of strip described in described annealing furnace The annealing of the i-th process section is temperature required, wherein, single regulated quantity≤5 DEG C that described strip design temperature is adjusted, described First prefixed time interval >=2min.
9. annealing in-furnace temperature control system as claimed in claim 6 is it is characterised in that described adjustment unit includes:
Reduce regulator unit, for a described upper coil of strip described annealing furnace i-th process section annealing temperature required than described Next coil of strip, when the annealing of described annealing furnace i-th process section is temperature required high, is taken the lead in described annealing from what described transition was rolled up The belt steel temperature monitoring point of stove i-th process section starts, described transition volume operate in during described annealing furnace i-th process section with And during the leading portion of described next coil of strip operates in described annealing furnace i-th process section, by the band of described annealing furnace i-th process section Steel design temperature is repeatedly reduced with the second prefixed time interval, to reach next coil of strip described in described annealing furnace i-th process section Annealing temperature required, wherein, described second prefixed time interval >=2min, the list that described strip design temperature is reduced Secondary regulated quantity≤5 DEG C.
10. annealing in-furnace temperature control system as claimed in claim 6 is it is characterised in that a described upper coil of strip moves back described Stove i-th process section annealing temperature required than next coil of strip described described annealing furnace i-th process section annealing temperature required low when, Described annealing in-furnace temperature control system also includes;
Second regulator unit, for monitoring that the default of a described upper steel reach described annealing furnace i-th process section with rear During belt steel temperature monitoring point, the strip design temperature of described annealing furnace i-th process section is raised at least one times;
Described adjustment unit, including:Raise sub- adjustment unit, for operating in described annealing furnace i-th technique when described transition volume During section, the strip design temperature of described annealing furnace i-th process section is repeatedly raised with the 3rd prefixed time interval, to reach Next coil of strip i-th process section anneal design temperature, wherein, described three prefixed time interval >=2min, described strip is set Single regulated quantity≤5 DEG C that constant temperature degree is raised.
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