CN106381379A - Method and system for controlling tension in annealing furnace - Google Patents
Method and system for controlling tension in annealing furnace Download PDFInfo
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- CN106381379A CN106381379A CN201610749540.9A CN201610749540A CN106381379A CN 106381379 A CN106381379 A CN 106381379A CN 201610749540 A CN201610749540 A CN 201610749540A CN 106381379 A CN106381379 A CN 106381379A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/562—Details
- C21D9/564—Tension control
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D11/00—Process control or regulation for heat treatments
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- Crystallography & Structural Chemistry (AREA)
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Abstract
The invention discloses a method and a system for controlling the tension in an annealing furnace, and the method and system are applied to the technical field of cold rolling. The method for controlling the tension in the annealing furnace comprises the following steps: monitoring whether a tension meter in each tension region in the annealing furnace has a fault in an on-line manner; when a first tension region in which the tension meter has a fault is monitored, switching to a state that the product result of a tension calculated value and a compensation coefficient of the first tension region is taken as a tension feedback value of the first tension region so as to regulate the tension in the first tension region; otherwise, keeping the tension calculated value of the tension meter in the first tension region to be used as the tension feedback value of the first tension region so as to regulate the tension in the first tension region, wherein the first tension region is any one of the tension regions in the annealing furnace. The method and the system disclosed by the invention are capable of solving the technical problem that in the prior art, the tension in the annealing furnace is out of control if the tension meter has a fault, so the tension in each tension region is kept stable all the time even when the tension meter has a fault.
Description
Technical field
The present invention relates to cold rolling technology field, more particularly, to a kind of annealing furnace internal tension control method and control system.
Background technology
Cold rolled annealed stove is the key equipment in continuous annealing line and galvanized wire, annealing furnace whether can stable operation directly affect whole
The operation conditions of bar producing line.Tonometer as the measuring apparatus of detection annealing furnace area strip tension, if when producing line is run, its
In one or more tonometeies break down can lead to annealing furnace internal tension control out of control, and then lead to stop, when serious even
Strip steel broken belt in annealing furnace can be led to, cause producing line to stop production for a long time.
Content of the invention
The embodiment of the present invention passes through to provide a kind of annealing furnace internal tension control method and annealing furnace internal tension control system, solution
In prior art of having determined, tonometer breaks down and annealing furnace internal tension can be led to control technical problem out of control.
In a first aspect, the embodiment of the present invention provides a kind of annealing furnace internal tension control method, described annealing furnace internal tension control
Method processed includes：In annealing furnace described in on-line monitoring, whether the tonometer of each tensile region breaks down；Monitor that tonometer occurs
During the first tensile region of fault, switch to the tension force value of calculation of described first tensile region and the result of product of penalty coefficient as institute
State the tension feedback value of the first tensile region, to regulate and control the tension force in described first tensile region, otherwise keep with described first tension force
The tension measurements of the tonometer in area as the tension feedback value of described first tensile region, to regulate and control described first tensile region
Tension force, wherein, described first tensile region is any one of each tensile region in described annealing furnace.
Preferably, in annealing furnace described in described on-line monitoring, whether the tonometer of each tensile region breaks down, including：
Carry out according to the default scan period detecting the tension measurements of the tonometer of each tensile region；In present scanning cycle inspection
During the tension measurements of the tonometer measuring each tensile region, the tension measurements based on present scanning cycle carry out judging each tension force
Whether the tonometer in area meets at least one tonometer breakdown judge condition；Meet at least one described tonometer breakdown judge bar
The tonometer of part is defined as breaking down.
Preferably, the tension measurements of the tonometer of described each tensile region that each scan period detects all include operating
When side tension force and transmission side tension force, described tonometer breakdown judge condition includes：
Difference between the transmission side tension force of upper scan cycle and the transmission side tension force of present scanning cycle is more than transmission
Side tension force sets difference, and/or between the fore side tension force of upper scan cycle and the fore side tension force of present scanning cycle
Difference is more than fore side tension force and sets difference, and/or the tension force total value of upper scan cycle is total with the tension force of present scanning cycle
Difference between value is more than total tension and sets difference, wherein, the tension force total value of each scan period be respectively fore side tension force with
Transmission side tension force sum；
The transmission side tension force of the fore side tension force of present scanning cycle or present scanning cycle is less than one-sided tensile forces setting value,
And/or the tension force total value of present scanning cycle is more than total tension setting value；
Difference between the tension force total value of present scanning cycle and the tension force value of calculation of present scanning cycle is more than to calculate opens
Power sets difference；
Difference between the fore side tension force of present scanning cycle and the transmission side tension force of present scanning cycle is more than between side
Tension force sets difference.
Preferably, in the result of product conduct of the described tension force value of calculation switching to described first tensile region and penalty coefficient
Tension feedback value in described first tensile region, after regulating and controlling the tension force in described first tensile region, opens in described annealing furnace
Force control method also includes：
When the tonometer described first tensile region is detected recovers normal, switch to the tension force from described first tensile region
Meter reads tension measurements as the tension feedback value of described first tensile region.
Preferably, in the described tension force value of calculation of described each tensile region and the result of product of penalty coefficient of switching to as institute
State the tension feedback value of the first tensile region, before regulating and controlling the tension force in described first tensile region, described annealing furnace internal tension control
Method processed also includes：
Obtain all furnace rollers in described first tensile region and act on the F that makes a concerted effort on strip steelr, and obtain at described first
The strip tension F of the outlet of previous tensile region in power areaf；
Calculate described strip tension FfWith the described F that makes a concerted effortrDifference be described first tensile region tension force value of calculation F：F=Ff-
Fr.
Preferably, after in annealing furnace described in described on-line monitoring, whether the tonometer of each tensile region breaks down, institute
State annealing furnace internal tension control method also to include：
When the tonometer monitoring at least one tensile region breaks down, export for pointing out at least one tension force described
The fault cues information that the corresponding tonometer in area breaks down.
Preferably, in the result of product conduct of the described tension force value of calculation switching to described first tensile region and penalty coefficient
The tension feedback value of described first tensile region, before regulating and controlling the tension force in described first tensile region, described annealing furnace internal tension
Control method also includes：
It is upper scan cycle from described according to the penalty coefficient that the described default scan period adjusts present scanning cycle
The ratio value of the tension force value of calculation that the tension measurements that power meter detects are calculated with upper scan cycle.
Second aspect, embodiments provides a kind of annealing furnace internal tension control system, including：
Monitoring means, whether the tonometer for tensile region each in annealing furnace described in on-line monitoring breaks down；
First switch unit, during for monitoring the first tensile region that tonometer breaks down, switches to described first
The tension force value of calculation in power area and the result of product of penalty coefficient are as the tension feedback value of described first tensile region, described to regulate and control
Tension force in first tensile region, otherwise keeps using the tension measurements of the tonometer in described first tensile region as described first
The tension feedback value of tensile region, to regulate and control the tension force of described first tensile region, wherein, described first tensile region is described annealing furnace
Any one of interior each tensile region.
Preferably, described monitoring means include：
Detection sub-unit, for carrying out according to the default scan period detecting the tension measurements of the tonometer of each tensile region；
Judgment sub-unit, after the tension measurements for the tonometer each tensile region is detected in present scanning cycle, base
Tension measurements in present scanning cycle carry out judging whether the tonometer of each tensile region meets at least one tonometer fault
Rule of judgment；
Determination subelement, the tonometer for meeting at least one described tonometer breakdown judge condition is defined as event
Barrier.
Preferably, the tension measurements of the tonometer of described each tensile region that each scan period detects all include operating
When side tension force and transmission side tension force, described tonometer breakdown judge condition includes：
Difference between the transmission side tension force of upper scan cycle and the transmission side tension force of present scanning cycle is more than transmission
Side tension force sets difference, and/or between the fore side tension force of upper scan cycle and the fore side tension force of present scanning cycle
Difference is more than fore side tension force and sets difference, and/or the tension force total value of upper scan cycle is total with the tension force of present scanning cycle
Difference between value is more than total tension and sets difference, wherein, the tension force total value of each scan period be respectively fore side tension force with
Transmission side tension force sum；
The transmission side tension force of the fore side tension force of present scanning cycle or present scanning cycle is less than one-sided tensile forces setting value,
And/or the tension force total value of present scanning cycle is more than total tension setting value；
Difference between the tension force total value of present scanning cycle and the tension force value of calculation of present scanning cycle is more than to calculate opens
Power sets difference；
Difference between the fore side tension force of present scanning cycle and the transmission side tension force of present scanning cycle is more than between side
Tension force sets difference.
Preferably, described annealing furnace internal tension control system also includes：
Second switch unit, during for recovering normal in the tonometer described first tensile region is detected, switches to from institute
The tonometer stating the first tensile region reads tension measurements as the tension feedback value of described first tensile region.
Preferably, described annealing furnace internal tension control system also includes：
Acquiring unit, acts on the F that makes a concerted effort on strip steel for obtaining all furnace rollers in described first tensile regionr, and obtain
It is taken at the strip tension F of the outlet of previous tensile region of described first tensile regionf；
Computing unit, for calculating described strip tension FfWith the described F that makes a concerted effortrDifference be described first tensile region tension force
Value of calculation F：F=Ff-Fr.
Preferably, described annealing furnace internal tension control system also includes：
Output unit, during for breaking down in the tonometer monitoring at least one tensile region, exports for pointing out
State the fault cues information that the corresponding tonometer at least one tensile region breaks down.
Preferably, described annealing furnace internal tension control system also includes：
Adjustment unit, the penalty coefficient for adjusting present scanning cycle according to the described default scan period is upper one scan
The ratio value of the tension force value of calculation that the tension measurements that the cycle detects from described tonometer are calculated with upper scan cycle.
The one or more technical schemes providing in the embodiment of the present invention, at least have the following technical effect that or advantage：
Whether the tonometer due to each tensile region in on-line monitoring annealing furnace breaks down, and is monitoring tonometer generation event
During barrier, switch to the tension force value of calculation of this tonometer place tensile region and the result of product of penalty coefficient, as in this tensile region
Tension feedback value, to regulate and control the tension force in this tensile region, otherwise keep with the tension measurements of this tensile region tonometer for should
The tension feedback value of tensile region is to regulate and control the tension force in this tensile region.Thus realizing the prison to tensile region internal tension meter state online
Control, and when monitoring that tonometer breaks down by the tension feedback value of tension force closed loop from read tonometer tonometry
Value switches to the result of product of tension force value of calculation and penalty coefficient, thus avoiding tension force closed loop to receive fault tonometer
The tension measurements of mistake, and then improve availability and the failure tolerant ability of tension control system, even if so that in tension force
Meter also can guarantee that the tension force all-the-time stable of each tensile region when breaking down, and then efficiently solves tonometer in prior art
Break down and annealing furnace internal tension can be led to control technical problem out of control, thus ensure that the stable operation of producing line.
Further, in tonometer fault tension force value of calculation and penalty coefficient result of product, as in each tensile region
Tension feedback value with regulate and control the tension force of each tensile region it becomes possible under not stopped status, fault tonometer is carried out repair and more
Change, it is to avoid because tonometer fault causes the annealing furnace producing line to stop production for a long time.
Further, the penalty coefficient due to employing according to adjustment of default scan period present scanning cycle is upper one scan
The ratio value of the tension measurements that the cycle detects from tonometer and the tension force value of calculation of upper scan cycle, it is achieved thereby that real
When adjustment tension measurements and tension force value of calculation between penalty coefficient it is ensured that the tension force when switching moment is steady.
Further, due to employ detect tonometer recover normal when, switch to from tonometer read tonometry
Value controls the tension feedback value of closed loop as each tensile region internal tension, can be in the complete rear automatic switchover retaking of a year or grade of tonometer troubleshooting
Take tonometer tension measurements be tension force closed loop feedback, thereby ensure that tonometer is from the tonometer weight that breaks down
Newly come into operation and all do not need to stop, thus improve production efficiency.
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 internal tension control method in the embodiment of the present invention；
Fig. 2 is the module map of annealing furnace internal tension 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.
Annealing furnace internal tension control method provided in an embodiment of the present invention is applied to continuous annealing annealing furnace producing line or zinc-plated annealing
Stove producing line.Corresponding 8 tensile regions in continuous annealing annealing furnace, specifically, in last root furnace roller of each tensile region of 8 tensile regions
Place's installation tension meter, then install 8 tonometeies in continuous annealing annealing furnace.Corresponding 4 tensile regions in galvanization annealing furnace, in 4 tension force
One tonometer is installed at last root furnace roller of each tensile region in area, then 4 tonometeies are installed in galvanization annealing furnace.The present invention
The annealing furnace internal tension control method that embodiment provides is applied to the tonometer for certain tensile region in annealing furnace, or simultaneously
It is applied independently in the multiple tonometeies in annealing furnace or whole tonometer, the tension force control only to a tensile region for the embodiment of the present invention
Method processed illustrates, and the tension control method of other tensile regions is same or similar with the embodiment of the present invention, for description
Succinctly, it is not illustrated herein.
With reference to shown in Fig. 1, annealing furnace internal tension control method provided in an embodiment of the present invention comprise the steps S101～
S102：
In S101, on-line monitoring annealing furnace, whether the tonometer of each tensile region breaks down.
In one embodiment, the tension measurements of the tonometer of each tensile region are detected according to the default scan period, current
After scan period detects the tension measurements of the tonometer of each tensile region, the tension measurements based on present scanning cycle judge
Whether the tonometer of each tensile region meets at least one tonometer breakdown judge condition；Meet at least one described tonometer fault
The tonometer of Rule of judgment is defined as breaking down.
Specifically, the default scan period is arranged according to the actual requirements.Such as, so that the default scan period is 0.1 second as a example, then
At interval of the tension measurements of the 0.1S detection once tonometer of each tensile region, then in 0S, 0.1S, 0.2S, 0.3S, 0.4S ... according to
Secondary carry out detecting the tension measurements of the tonometer of each tensile region.Such as, so that the default scan period is 1 second as a example, then at interval of
1S detects once the tension measurements of the tonometer of each tensile region, then in 0S, 1S, 2S, 3S, 4S ... carry out detecting tonometer successively
Tension measurements.
Specifically, the tonometer of each tensile region is arranged at last root furnace roller of place tensile region, and tonometer includes two
Individual pressure head, two pressure head correspondences carry out the tonometry of strip steel both sides, then the tonometry of each scan period detection tonometer
Value all include transmission side tension force and with fore side tension force.
Specifically, tonometer breakdown judge condition includes following at least four：
First breakdown judge condition includes：The transmission side tension force of upper scan cycle and the transmission side of present scanning cycle
Difference between tension force is more than transmission side tension force and sets difference, and/or the fore side tension force of upper scan cycle and Current Scan
Difference between the fore side tension force in cycle is more than fore side tension force and sets difference, and/or the tension force total value of upper scan cycle
Difference and the tension force total value of present scanning cycle between is more than total tension and sets difference, wherein, the tension force of each scan period
Total value is respectively fore side tension force and both transmission side tension force sum under this scan period.
Specifically, transmission side tension force sets difference, fore side tension force sets difference, total tension sets difference respectively according to reality
Border annealing furnace producing line setting.Such as, in one embodiment, transmission side tension force sets difference, fore side tension force sets difference and is all provided with
It is set to 1000N, total tension sets difference and is set to 2000N.Certainly, transmission side tension force sets difference and the setting of fore side tension force is poor
Value can also be different.
Second tonometer breakdown judge condition includes：The transmission side tension force of present scanning cycle or present scanning cycle
Fore side tension force is less than one-sided tensile forces setting value, and/or the tension force total value of present scanning cycle is more than total tension setting value.Its
In, the tension force total value of present scanning cycle is：The tension measurements of two tension force pressure head measurements of present scanning cycle tonometer
Sum is (i.e.：Tension force total value is equal under present scanning cycle：Transmission side tension force and fore side tension force sum)
Specifically, one-sided tensile forces setting value, total tension setting value are arranged all in accordance with actual annealing furnace producing line, such as, one
In specific embodiment, one-sided tensile forces setting value is set to 100N, and total tension setting value is set to 200N.
3rd tonometer breakdown judge condition includes：Between the tension force total value of present scanning cycle and tension force value of calculation
Difference is more than calculating tension force and sets difference.Likewise, the tension force total value of present scanning cycle is：Present scanning cycle tonometer
The tension measurements sum of two tension force pressure head measurements is (i.e.：Tension force total value is equal under present scanning cycle：Transmission side tension force and behaviour
Make side tension force sum).
Specifically, calculate tension force and set the setting of difference actual annealing furnace producing line.In one embodiment, calculate tension force to set
Determine difference and be set to 4500N.
4th tonometer breakdown judge condition be：The fore side tension force of present scanning cycle and the biography of present scanning cycle
Difference between the tension force of dynamic side is more than tension force between side and sets difference.
Specifically, between side, tension force setting difference is arranged according to actual annealing furnace producing line, in one embodiment, opens between side
Power sets difference and is set to 3500N.
It is simultaneously used for judging whether tonometer breaks down by four tonometer breakdown judge conditions of above-mentioned setting, energy
Enough it is accurately judged to the fault occurring in the case of tonometer is various.
S102, when monitoring the first tensile region that tonometer breaks down, switch to the tension force value of calculation of the first tensile region
With the result of product of penalty coefficient as the first tensile region tension feedback value, to regulate and control the tension force in the first tensile region, otherwise
Keep the tension feedback value using the tension measurements of the tonometer in the first tensile region as the first tensile region, to regulate and control first
The tension force in power area.
Specifically, the first tensile region is any one of each tensile region in annealing furnace, then each tensile region any one or
When multiple tonometeies break down, it is performed both by step S102.
Specifically, when monitoring that tonometer breaks down, or before monitoring that tonometer breaks down, calculate each
The tension force value of calculation in power area：Taking one of tensile region (the first tensile region) as a example it is described below and calculate each tensile region
Tension force value of calculation：Obtain all furnace rollers in the first tensile region and act on the F that makes a concerted effort on strip steelr, and obtain in the first tensile region
The outlet of previous tensile region strip tension Ff；Calculate strip tension FfWith F with joint effortsrDifference be described first tensile region
Power value of calculation F：F=Ff-Fr.
Make a concerted effort FrAct on the power sum on strip steel for all furnace rollers in a tensile region, then calculate single furnace roller and act on
Power on strip steel is：The motor output of this single furnace roller when the motor output torque of this single furnace roller deducts zero load during load strip steel
Moment of torsion.In specific implementation process, when unloaded, the motor output torque of this single furnace roller is to measure in advance and be preset in annealing furnace
In tension control system, measure the motor output torque of single furnace roller during load strip steel in real time.Each furnace roller acts on strip steel
Power be added obtain F with joint effortsr.Strip tension F in the previous tensile region outlet of each tensile regionfIt is equal to previous during load strip steel
The motor output torque that the motor output torque of tensile region outlet furnace roller deducts previous tensile region outlet furnace roller during zero load calculates
Arrive.
Achieve the monitoring of the tonometer state to each tensile region by above-mentioned steps S101～S102, and monitoring to open
During power meter fault by the tension feedback value of tension force closed loop from tonometer read tension measurements switch to tension force value of calculation with
The result of product of penalty coefficient, thus the tension measurements avoiding mistake cause the uncontrolled of strip tension in annealing furnace,
Therefore under producing line not stopped status, fault tonometer can be repaired and be changed, thus reaching stablizing of annealing furnace producing line
Run for a long time.
Further, after execution S102, described annealing furnace internal tension control method also includes：There is event detecting
When the tonometer of barrier recovers normal, switching to from recover normal tonometer reading tension measurements is this tonometer place tension force
Tension feedback value in area is to regulate and control the tension force in this tensile region.Such as：Just recover in the tonometer the first tensile region is detected
Chang Shi, switches to the tonometer from the first tensile region and reads tension measurements as the tension feedback value of the first tensile region.
Further, after execution S101, described annealing furnace internal tension control method also includes：Monitoring at least one
When the tonometer of individual tensile region breaks down, export the fault cues information for pointing out corresponding tonometer to break down, from
And can remind in time and the tonometer breaking down be keeped in repair and changes.
Further, also include in execution S102 as described before annealing furnace internal tension control method：According to default scanning week
The penalty coefficient that phase adjusts present scanning cycle be upper scan cycle from the tension measurements that tonometer detects with sweep
Retouch the ratio value of the tension force value of calculation of computation of Period.So that result of product is in real time with reality, correct tension measurements more
Close, then ensure that the accuracy of the penalty coefficient used when calculating result of product, be prevented from switching to tension force value of calculation
Result of product with penalty coefficient is that during the tension feedback value in this tensile region, larger fluctuation in closed-loop tension control.
For example, the tension measurements that upper scan cycle detects from tonometer are 100N, upper scan cycle meter
The tension force value of calculation calculated is 125N, then the corresponding penalty coefficient of present scanning cycle is adjusted to 0.8：100N/125N=0.8.Again
Such as going up the tension measurements that scan cycle detects from tonometer is 75N, the tension force value of calculation that upper scan cycle calculates
For 125N, then the penalty coefficient of present scanning cycle is adjusted to 75N/125N=0.6.
Based on same inventive concept, embodiments provide a kind of annealing furnace internal tension control system, with reference to Fig. 2 institute
Show, including：
Second aspect, embodiments provides a kind of annealing furnace internal tension control system, including：
Monitoring means 201, whether the tonometer for tensile region each in annealing furnace described in on-line monitoring breaks down；
First switch unit 202, during for monitoring the first tensile region that tonometer breaks down, switches to described first
The tension force value of calculation of tensile region and the result of product of penalty coefficient as the tension feedback value of described first tensile region, to regulate and control
State the tension force in the first tensile region, otherwise keep using the tension measurements of the tonometer in described first tensile region as described
The tension feedback value of one tensile region, to regulate and control the tension force of described first tensile region, wherein, described first tensile region is described annealing
Any one of each tensile region in stove.
Preferably, described monitoring means 201 include：
Detection sub-unit, for carrying out according to the default scan period detecting the tension measurements of the tonometer of each tensile region；
Judgment sub-unit, after the tension measurements for the tonometer each tensile region is detected in present scanning cycle, base
Tension measurements in present scanning cycle carry out judging whether the tonometer of each tensile region meets at least one tonometer fault
Rule of judgment；
Determination subelement, the tonometer for meeting at least one described tonometer breakdown judge condition is defined as event
Barrier.
Preferably, the tension measurements of the tonometer of described each tensile region that each scan period detects all include operating
When side tension force and transmission side tension force, described tonometer breakdown judge condition includes：
Difference between the transmission side tension force of upper scan cycle and the transmission side tension force of present scanning cycle is more than transmission
Side tension force sets difference, and/or between the fore side tension force of upper scan cycle and the fore side tension force of present scanning cycle
Difference is more than fore side tension force and sets difference, and/or the tension force total value of upper scan cycle is total with the tension force of present scanning cycle
Difference between value is more than total tension and sets difference, wherein, the tension force total value of each scan period be respectively fore side tension force with
Transmission side tension force sum；
The transmission side tension force of the fore side tension force of present scanning cycle or present scanning cycle is less than one-sided tensile forces setting value,
And/or the tension force total value of present scanning cycle is more than total tension setting value；
Difference between the tension force total value of present scanning cycle and the tension force value of calculation of present scanning cycle is more than to calculate opens
Power sets difference；
Difference between the fore side tension force of present scanning cycle and the transmission side tension force of present scanning cycle is more than between side
Tension force sets difference.
Preferably, described annealing furnace internal tension control system also includes：
Second switch unit, during for recovering normal in the tonometer described first tensile region is detected, switches to from institute
The tonometer stating the first tensile region reads tension measurements as the tension feedback value of described first tensile region.
Preferably, described annealing furnace internal tension control system also includes：
Acquiring unit, acts on the F that makes a concerted effort on strip steel for obtaining all furnace rollers in described first tensile regionr, and obtain
It is taken at the strip tension F of the outlet of previous tensile region of described first tensile regionf；
Computing unit, for calculating described strip tension FfWith the described F that makes a concerted effortrDifference be described first tensile region tension force
Value of calculation F：F=Ff-Fr.
Preferably, described annealing furnace internal tension control system also includes：
Output unit, during for breaking down in the tonometer monitoring at least one tensile region, exports for pointing out
State the fault cues information that the corresponding tonometer at least one tensile region breaks down.
Preferably, described annealing furnace internal tension control system also includes：
Adjustment unit, the penalty coefficient for adjusting present scanning cycle according to the described default scan period is upper one scan
The ratio value of the tension force value of calculation that the tension measurements that the cycle detects from described tonometer are calculated with upper scan cycle.
The equipment of the present embodiment annealing furnace internal tension control system aforementioned annealing furnace internal tension control method embodiment,
The specific implementation details of annealing furnace internal tension control system with reference to aforementioned annealing furnace internal tension control method embodiment, in order to illustrate
Book succinct, repeat no more herein.
By in the embodiments of the present invention provide one or more technical schemes, at least have the following technical effect that or
Advantage：
Whether the tonometer due to each tensile region in on-line monitoring annealing furnace breaks down, and is monitoring tonometer generation event
During barrier, switch to the tension force value of calculation of this tonometer place tensile region and the result of product of penalty coefficient, as in this tensile region
Tension feedback value, to regulate and control the tension force in this tensile region, otherwise keep with the tension measurements of this tensile region tonometer for should
The tension feedback value of tensile region is to regulate and control the tension force in this tensile region.Thus realizing the prison to tensile region internal tension meter state online
Control, and when monitoring that tonometer breaks down by the tension feedback value of tension force closed loop from read tonometer tonometry
Value switches to the result of product of tension force value of calculation and penalty coefficient, thus avoiding tension force closed loop to receive fault tonometer
The tension measurements of mistake, and then improve availability and the failure tolerant ability of tension control system, even if so that in tension force
Meter also can guarantee that the tension force all-the-time stable of each tensile region when breaking down, and then efficiently solves tonometer in prior art
Break down and annealing furnace internal tension can be led to control technical problem out of control, thus ensure that the stable operation of producing line.
Further, in tonometer fault tension force value of calculation and penalty coefficient result of product, as in each tensile region
Tension feedback value with regulate and control the tension force of each tensile region it becomes possible under not stopped status, fault tonometer is carried out repair and more
Change, it is to avoid because tonometer fault causes the annealing furnace producing line to stop production for a long time.
Further, the penalty coefficient due to employing according to adjustment of default scan period present scanning cycle is upper one scan
The ratio value of the tension measurements that the cycle detects from tonometer and the tension force value of calculation of upper scan cycle, it is achieved thereby that real
When adjustment tension measurements and tension force value of calculation between penalty coefficient it is ensured that the tension force when switching moment is steady.
Further, due to employ detect tonometer recover normal when, switch to from tonometer read tonometry
Value controls the tension feedback value of closed loop as each tensile region internal tension, can be in the complete rear automatic switchover retaking of a year or grade of tonometer troubleshooting
Take tonometer tension measurements be tension force closed loop feedback, thereby ensure that tonometer is from the tonometer weight that breaks down
Newly come into operation and all do not need to stop, thus improve production efficiency.
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 internal tension control method is it is characterised in that described annealing furnace internal tension control method includes：
In annealing furnace described in on-line monitoring, whether the tonometer of each tensile region breaks down；
When monitoring the first tensile region that tonometer breaks down, switch to tension force value of calculation and the compensation of described first tensile region
The result of product of coefficient is as the tension feedback value of described first tensile region, to regulate and control the tension force in described first tensile region, no
Then keep the tension feedback value using the tension measurements of the tonometer in described first tensile region as described first tensile region, with
Regulate and control the tension force of described first tensile region, wherein, described first tensile region is any one of each tensile region in described annealing furnace.
2. annealing furnace internal tension control method as claimed in claim 1 is it is characterised in that annealing furnace described in described on-line monitoring
Whether the tonometer of interior each tensile region breaks down, including：
Carry out according to the default scan period detecting the tension measurements of the tonometer of each tensile region；
The tension force during tension measurements of the tonometer each tensile region is detected in present scanning cycle, based on present scanning cycle
Measured value carries out judging whether the tonometer of each tensile region meets at least one tonometer breakdown judge condition；
The tonometer meeting at least one described tonometer breakdown judge condition is defined as breaking down.
3. annealing furnace internal tension control method as claimed in claim 2 is it is characterised in that the institute that detects of each scan period
When stating the tension measurements of the tonometer of each tensile region and all including fore side tension force and transmission side tension force, described tonometer fault is sentenced
Broken strip part includes：
Difference between the transmission side tension force of upper scan cycle and the transmission side tension force of present scanning cycle is opened more than transmission side
Power sets the difference between difference, and/or the fore side tension force of upper scan cycle and the fore side tension force of present scanning cycle
Set difference more than fore side tension force, and/or the tension force total value of the tension force total value of upper scan cycle and present scanning cycle it
Between difference be more than total tension and set difference, wherein, the tension force total value of each scan period is respectively fore side tension force and transmission
Side tension force sum；
The transmission side tension force of the fore side tension force of present scanning cycle or present scanning cycle is less than one-sided tensile forces setting value, and/
Or the tension force total value of present scanning cycle is more than total tension setting value；
Difference between the tension force total value of present scanning cycle and the tension force value of calculation of present scanning cycle is more than calculating tension force and sets
Determine difference；
Difference between the fore side tension force of present scanning cycle and the transmission side tension force of present scanning cycle is more than tension force between side
Set difference.
4. annealing furnace internal tension control method as claimed in claim 1 is it is characterised in that switch to described first described
The tension force value of calculation in power area and the result of product of penalty coefficient as the tension feedback value in described first tensile region, to regulate and control
After stating the tension force in the first tensile region, described annealing furnace internal tension control method also includes：
When the tonometer described first tensile region is detected recovers normal, switch to the tonometer from described first tensile region and read
Take tension measurements as the tension feedback value of described first tensile region.
5. annealing furnace internal tension control method as claimed in claim 1 is it is characterised in that switch to described each tension force described
The tension force value of calculation in area and the result of product of penalty coefficient as the tension feedback value of described first tensile region, to regulate and control described the
Before tension force in one tensile region, described annealing furnace internal tension control method also includes：
Obtain all furnace rollers in described first tensile region and act on the F that makes a concerted effort on strip steelr, and obtain in described first tensile region
The outlet of previous tensile region strip tension Ff；
Calculate described strip tension FfWith the described F that makes a concerted effortrDifference be described first tensile region tension force value of calculation F：F=Ff-Fr.
6. annealing furnace internal tension control method as claimed in claim 1 is it is characterised in that annealing described in described on-line monitoring
After in stove, whether the tonometer of each tensile region breaks down, described annealing furnace internal tension control method also includes：
When the tonometer monitoring at least one tensile region breaks down, export for pointing out at least one tensile region pair described
The fault cues information that the tonometer answered breaks down.
7. annealing furnace internal tension control method as claimed in claim 1 is it is characterised in that switch to described first described
The tension force value of calculation in power area and the result of product of penalty coefficient are as the tension feedback value of described first tensile region, described to regulate and control
Before tension force in first tensile region, described annealing furnace internal tension control method also includes：
It is upper scan cycle from described tonometer according to the penalty coefficient that the described default scan period adjusts present scanning cycle
The ratio value of the tension force value of calculation that the tension measurements detecting are calculated with upper scan cycle.
8. a kind of annealing furnace internal tension control system is it is characterised in that include：
Monitoring means, whether the tonometer for tensile region each in annealing furnace described in on-line monitoring breaks down；
First switch unit, during for monitoring the first tensile region that tonometer breaks down, switches to described first tensile region
Tension force value of calculation and penalty coefficient result of product as described first tensile region tension feedback value, to regulate and control described first
Tension force in tensile region, otherwise keeps using the tension measurements of the tonometer in described first tensile region as described first tension force
The tension feedback value in area, to regulate and control the tension force of described first tensile region, wherein, described first tensile region is each in described annealing furnace
Any one of tensile region.
9. annealing furnace internal tension control system as claimed in claim 8 is it is characterised in that described monitoring means include：
Detection sub-unit, for carrying out according to the default scan period detecting the tension measurements of the tonometer of each tensile region；
Judgment sub-unit, after the tension measurements for the tonometer each tensile region is detected in present scanning cycle, based on work as
The tension measurements of front scan period carry out judging whether the tonometer of each tensile region meets at least one tonometer breakdown judge
Condition；
Determination subelement, the tonometer for meeting at least one described tonometer breakdown judge condition is defined as breaking down.
10. annealing furnace internal tension control system as claimed in claim 9 is it is characterised in that what each scan period detected
When the tension measurements of the tonometer of described each tensile region all include fore side tension force and transmission side tension force, described tonometer fault
Rule of judgment includes：
Difference between the transmission side tension force of upper scan cycle and the transmission side tension force of present scanning cycle is opened more than transmission side
Power sets the difference between difference, and/or the fore side tension force of upper scan cycle and the fore side tension force of present scanning cycle
Set difference more than fore side tension force, and/or the tension force total value of the tension force total value of upper scan cycle and present scanning cycle it
Between difference be more than total tension and set difference, wherein, the tension force total value of each scan period is respectively fore side tension force and transmission
Side tension force sum；
The transmission side tension force of the fore side tension force of present scanning cycle or present scanning cycle is less than one-sided tensile forces setting value, and/
Or the tension force total value of present scanning cycle is more than total tension setting value；
Difference between the tension force total value of present scanning cycle and the tension force value of calculation of present scanning cycle is more than calculating tension force and sets
Determine difference；
Difference between the fore side tension force of present scanning cycle and the transmission side tension force of present scanning cycle is more than tension force between side
Set difference.
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| CN109943704A (en) * | 2019-04-12 | 2019-06-28 | 首钢京唐钢铁联合有限责任公司 | Strip wooden dipper song diagnostic method and device in a kind of vertical annealing furnace furnace |
| CN110714116A (en) * | 2019-11-05 | 2020-01-21 | 山东钢铁集团日照有限公司 | Method for stopping in thin-specification strip steel annealing furnace for rapid production recovery |
| CN113699362A (en) * | 2020-06-08 | 2021-11-26 | 中冶赛迪技术研究中心有限公司 | Parking tension eliminating method for large-scale strip steel continuous annealing furnace |
| CN114150140A (en) * | 2021-12-09 | 2022-03-08 | 飞马智科信息技术股份有限公司 | Tension building method of horizontal continuous annealing furnace of cold-rolled sheet processing line |
| CN115011789A (en) * | 2022-06-14 | 2022-09-06 | 包头钢铁（集团）有限责任公司 | Control method and system of tension detection device of vertical annealing furnace of galvanizing unit |
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