CN108444280A - The accuracy control method of furnace of calcium carbide rise fall of electrodes - Google Patents
The accuracy control method of furnace of calcium carbide rise fall of electrodes Download PDFInfo
- Publication number
- CN108444280A CN108444280A CN201810196342.3A CN201810196342A CN108444280A CN 108444280 A CN108444280 A CN 108444280A CN 201810196342 A CN201810196342 A CN 201810196342A CN 108444280 A CN108444280 A CN 108444280A
- Authority
- CN
- China
- Prior art keywords
- electrode
- electrodes
- furnace
- values
- reach
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/28—Arrangement of controlling, monitoring, alarm or the like devices
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
- G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
- G05B13/04—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
- G05B13/042—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators in which a parameter or coefficient is automatically adjusted to optimise the performance
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Evolutionary Computation (AREA)
- Medical Informatics (AREA)
- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses the accuracy control methods of furnace of calcium carbide rise fall of electrodes, each stove of furnace of calcium carbide is classified as a cycle, a cycle is decomposed into out three furnace period, adjustment period and stationary phase working stages simultaneously, and correspondence is implemented furnace period control strategy, adjustment period control strategy and stationary phase control strategy respectively to three different operating stages；The electrode control strategy of each working stage individually controls three-phase electrode, electrode relevance is set according to the correlation of three-phase electrode again, the control to the electric current, voltage of primary electrode is realized by adjusting associated electrodes holder position, to make the adjustment of three-phase electrode holder position connect each other, by the control of three-phase electrode holder position in suitable position, ensure furnace of calcium carbide stable operation.Full automation of the present invention control, is not necessarily to manual hand manipulation's furnace of calcium carbide, artificial maloperation, electrode accident rate is effectively avoided to substantially reduce, and realizes that furnace of calcium carbide is safe efficient, stable operation.
Description
Technical field：
The present invention relates to a kind of control methods of furnace of calcium carbide rise fall of electrodes, more particularly to a kind of furnace of calcium carbide rise fall of electrodes
Accuracy control method.
Background technology：
Just included automatic control program, the control program setting are relatively simple when mounted for furnace of calcium carbide：Electrode holde position
It sets and does lifting Electrode Operation after being compared with virtual electrode electric current according to setting electric current, and set electrode holde position liter
Bound drops.In practice, which often there is coordination electrode and does the phenomenon that significantly lifting, and is unfavorable for electricity
Stone stove stable operation, therefore the automatic control program will not come into operation substantially in calcium carbide production process.
And also there is drawback in manual hand manipulation's furnace of calcium carbide, coordination electrode lifting：Operating personnel are unfamiliar with rise fall of electrodes behaviour
Maloperation is easily caused as main points；The three-phase electrode not in place that easily causes enters stove imbalance to rise fall of electrodes not in time, influences electrode acting；
Operating personnel are careless and inadvertent or neglect one's duties and can cause electrode accident.The factors such as level of skill, the working attitude of people directly affect
Furnace of calcium carbide is run, and is also unfavorable for furnace of calcium carbide stable operation.
Furnace of calcium carbide electrode is automatically brought into operation the critical issue that problem is always furnace of calcium carbide industry, and main cause exists
In being automatically brought into operation for furnace of calcium carbide electrode is an extremely complex control process, and factor needed to be considered and variable are also comparable
More, and the relationship of these Variable Factors, some can be calculated, there are also can not direct quantitative, need to tie
Close the comprehensive descision that field condition and experience accumulation provide, this just to electrode be automatically brought into operation control bring it is many it is uncertain because
Element.
Existing relatively advanced technology mainly runs critical data by measurement, acquisition furnace of calcium carbide and establishes database,
By analysing and comparing to database, summary obtains current changing rate and the control formula of power variation rate trend.In calcium carbide
After the data such as acquisition electrode electric current and power variation rate in stove operational process, with control formula contrast, according to control formula requirement
Coordination electrode lifts.This is a kind of furnace of calcium carbide Electrode control mode of formulation, is a kind of step-by-step control mode,
Control effect is undesirable.
Invention content：
The purpose of the present invention is to provide a kind of furnace of calcium carbide electrodes that can ensure efficient, the safe and stable operation of furnace of calcium carbide
The accuracy control method of lifting.
The purpose of the present invention is implemented by following technical solution：The accuracy control method of furnace of calcium carbide rise fall of electrodes, by furnace of calcium carbide
Each stove be classified as a cycle, while a cycle is decomposed into out three furnace period, adjustment period and stationary phase working stages, and
To three different operating stages, correspondence is implemented furnace period control strategy, adjustment period control strategy and stationary phase control strategy respectively；
The electrode control strategy of each working stage individually controls three-phase electrode, and according to the mutual pass of three-phase electrode
System's setting electrode relevance, the control to the electric current, voltage of primary electrode is realized by adjusting associated electrodes holder position, to
So that the adjustment of three-phase electrode holder position is connected each other, by the control of three-phase electrode holder position in suitable position, ensures calcium carbide
Stove stable operation.
Specifically, furnace of calcium carbide Electrode control strategy includes：Go out furnace period control strategy, adjustment period control strategy and stabilization
Phase control strategy presses out the electricity of furnace period control strategy, adjustment period control strategy and stationary phase control strategy to three-phase electrode successively
After Electrode holder position is adjusted, it is a regulating cycle to complete one cycle, and each regulating cycle carries out again
Operation avoids influencing each other during each week；
One, go out furnace period control strategy：
(1) detection, which calculates, obtains electrode control output quantity
System, which constantly detects, obtains furnace of calcium carbide A electrode current values, and is compared with the A electrode current setting values of systemic presupposition
Compared with obtaining the change rate of A electrode currents difference and A electrode current differences, then A electrode currents difference and A electrode current differences
Change rate after modern fuzzy algorithm operation, obtain A electrodes control output quantity；
Detection, which calculates to obtain B electrodes control output quantity and detect, calculates the method for obtaining C electrodes control output quantity and detection
The method for calculating acquisition A electrodes control output quantity is identical；
(2) logic judgment is carried out to electrode control output quantity, and then the position for completing three electrodes is adjusted；
The method for carrying out logic judgment to A electrodes control output quantity specifically includes：
If A electrodes control output quantity is failure to actuate for electrode, process terminates；
If A electrodes control output quantity is to rise electrode action, then system further detects A electrode voltages；
When A electrode voltage upper limit values have not yet been reached in A electrode voltages, whether system detectio A electrodes reach in A electrode regulatings
Limit value, if not up to A electrode regulatings upper limit value, then A electrodes execution rise electrode and act, after the completion of A electrodes execution liter electrode acts,
System returns to detection and obtains furnace of calcium carbide A electrode current values, and is compared with the A electrode current setting values of systemic presupposition, obtains A
As become smaller before relatively adjusting, process terminates electrode current difference；A electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Secondary adjustment mistake carries out reversed lifting Electrode Operation, terminates the process after having executed reversed lifting Electrode Operation；Such as reach A electricity
Pole adjusts upper limit value, and A electrodes are failure to actuate, and whether the associated electrodes B electrodes that system continues to detect A electrodes reach in B electrode regulatings
Limit value, such as not up to B electrode regulatings upper limit value, and B electrode voltage upper limit values have not yet been reached in B electrode voltages, then B electrodes execute liter
Electrode acts, and after the completion of B electrodes execute liter electrode action, system returns to detection and obtains furnace of calcium carbide B electrode current values, and and system
Preset B electrode currents setting value is compared, and obtains B electrode currents difference as become smaller before relatively adjusting, process terminates；Obtain B
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed as become larger before relatively adjusting
Terminate the process after lifting Electrode Operation；Such as reach B electrode regulatings upper limit value or B electrode voltages reach B electrode voltage upper limit values,
B electrodes are failure to actuate, and process terminates；
When A electrode voltages reach A electrode voltage upper limit values, A electrodes only allow to do drop electrode action, and a liter electricity is forbidden in triggering
Pole interlocks；At this point, whether the associated electrodes B electrodes of system detectio A electrodes reach B electrode regulating upper limit values, such as not up to B electrodes
Upper limit value is adjusted, and B electrode voltage upper limit values have not yet been reached in B electrode voltages, then B electrodes, which execute, rises electrode action, and B electrodes execute
After the completion of rising electrode action, system returns to detection and obtains furnace of calcium carbide B electrode current values, and is set with the B electrode currents of systemic presupposition
Definite value is compared, and obtains B electrode currents difference as become smaller before relatively adjusting, process terminates；B electrode currents difference is obtained as relatively adjusted
Become larger before whole, then judge this adjustment mistake, carries out reversed lifting Electrode Operation, terminate after having executed reversed lifting Electrode Operation
The process；Such as reach B electrode regulatings upper limit value or B electrode voltages reach B electrode voltage upper limit values, B electrodes are failure to actuate, process knot
Beam；
If A electrodes control output quantity is drop electrode action, then system further detects A electrode voltages；
When A electrode voltage lower limiting values have not yet been reached in A electrode voltages, whether system detectio A electrodes reach under A electrode regulatings
Limit value, such as not up to A electrode regulatings lower limiting value, then A electrodes execution are dropped electrode and are acted, after the completion of A electrodes execution drop electrode acts,
System returns to detection and obtains furnace of calcium carbide A electrode current values, and is compared with the A electrode current setting values of systemic presupposition, obtains A
As become smaller before relatively adjusting, process terminates electrode current difference；A electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Secondary adjustment mistake carries out reversed lifting Electrode Operation, terminates the process after having executed reversed lifting Electrode Operation；Such as reach A electricity
Pole adjusts lower limiting value, and A electrodes are failure to actuate, and whether the associated electrodes B electrodes that system continues to detect A electrodes reach under B electrode regulatings
Limit value, such as not up to B electrode regulatings lower limiting value, and B electrode voltage lower limiting values have not yet been reached in B electrode voltages, then B electrodes execute drop
Electrode acts, and after the completion of B electrodes execute drop electrode action, system returns to detection and obtains furnace of calcium carbide B electrode current values, and and system
Preset B electrode currents setting value is compared, and obtains B electrode currents difference as become smaller before relatively adjusting, process terminates；Obtain B
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed as become larger before relatively adjusting
Terminate the process after lifting Electrode Operation；Such as reach B electrode regulatings lower limiting value or B electrode voltages reach B electrode voltage lower limiting values,
B electrodes are failure to actuate, and process terminates；
When A electrode voltages reach A electrode voltage lower limiting values, A electrodes only allow to do a liter electrode action, and drop electricity is forbidden in triggering
Pole interlocks；At this point, whether the associated electrodes B electrodes of system detectio A electrodes reach B electrode regulating lower limiting values, such as not up to B electrodes
Lower limiting value is adjusted, and B electrode voltage lower limiting values have not yet been reached in B electrode voltages, then B electrodes execute drop electrode action, and B electrodes execute
After the completion of dropping electrode action, system returns to detection and obtains furnace of calcium carbide B electrode current values, and is set with the B electrode currents of systemic presupposition
Definite value is compared, and obtains B electrode currents difference as become smaller before relatively adjusting, process terminates；B electrode currents difference is obtained as relatively adjusted
Become larger before whole, then judge this adjustment mistake, carries out reversed lifting Electrode Operation, terminate after having executed reversed lifting Electrode Operation
The process；Such as reach B electrode regulatings lower limiting value or B electrode voltages reach B electrode voltage lower limiting values, B electrodes are failure to actuate, process knot
Beam；
The method for carrying out logic judgment to B electrodes control output quantity specifically includes：
If B electrodes control output quantity is failure to actuate for electrode, process terminates；
If B electrodes control output quantity is to rise electrode action, then system further detects B electrode voltages；
When B electrode voltage upper limit values have not yet been reached in B electrode voltages, whether system detectio B electrodes reach in B electrode regulatings
Limit value, if not up to B electrode regulatings upper limit value, then B electrodes execution rise electrode and act, after the completion of B electrodes execution liter electrode acts,
System returns to detection and obtains furnace of calcium carbide B electrode current values, and is compared with the B electrode current setting values of systemic presupposition, obtains B
As become smaller before relatively adjusting, process terminates electrode current difference；B electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Secondary adjustment mistake carries out reversed lifting Electrode Operation, terminates the process after having executed reversed lifting Electrode Operation；Such as reach B electricity
Pole adjusts upper limit value, and B electrodes are failure to actuate, and whether the associated electrodes C electrodes that system continues to detect B electrodes reach in C electrode regulatings
Limit value, such as not up to C electrode regulatings upper limit value, and C electrode voltage upper limit values have not yet been reached in C electrode voltages, then C electrodes execute liter
Electrode acts, and after the completion of C electrodes execute liter electrode action, system returns to detection and obtains furnace of calcium carbide C electrode current values, and and system
Preset C electrode currents setting value is compared, and obtains C electrode currents difference as become smaller before relatively adjusting, process terminates；Obtain C
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed as become larger before relatively adjusting
Terminate the process after lifting Electrode Operation；Such as reach C electrode regulatings upper limit value or C electrode voltages reach C electrode voltage upper limit values,
C electrodes are failure to actuate, and process terminates；
When B electrode voltages reach B electrode voltage upper limit values, B electrodes only allow to do drop electrode action, and a liter electricity is forbidden in triggering
Pole interlocks；At this point, whether the associated electrodes C electrodes of system detectio B electrodes reach C electrode regulating upper limit values, such as not up to C electrodes
Upper limit value is adjusted, and C electrode voltage upper limit values have not yet been reached in C electrode voltages, then C electrodes, which execute, rises electrode action, and C electrodes execute
After the completion of rising electrode action, system returns to detection and obtains furnace of calcium carbide C electrode current values, and is set with the C electrode currents of systemic presupposition
Definite value is compared, and obtains C electrode currents difference as become smaller before relatively adjusting, process terminates；C electrode currents difference is obtained as relatively adjusted
Become larger before whole, then judge this adjustment mistake, carries out reversed lifting Electrode Operation, terminate after having executed reversed lifting Electrode Operation
The process；Such as reach C electrode regulatings upper limit value or C electrode voltages reach C electrode voltage upper limit values, C electrodes are failure to actuate, process knot
Beam；
If B electrodes control output quantity is drop electrode action, then system further detects B electrode voltages；
When B electrode voltage lower limiting values have not yet been reached in B electrode voltages, whether system detectio B electrodes reach under B electrode regulatings
Limit value, such as not up to B electrode regulatings lower limiting value, then B electrodes execution are dropped electrode and are acted, after the completion of B electrodes execution drop electrode acts,
System returns to detection and obtains furnace of calcium carbide B electrode current values, and is compared with the B electrode current setting values of systemic presupposition, obtains B
As become smaller before relatively adjusting, process terminates electrode current difference；B electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Secondary adjustment mistake carries out reversed lifting Electrode Operation, terminates the process after having executed reversed lifting Electrode Operation；Such as reach B electricity
Pole adjusts lower limiting value, and B electrodes are failure to actuate, and whether the associated electrodes C electrodes that system continues to detect B electrodes reach under C electrode regulatings
Limit value, such as not up to C electrode regulatings lower limiting value, and C electrode voltage lower limiting values have not yet been reached in C electrode voltages, then C electrodes execute drop
Electrode acts, and after the completion of C electrodes execute drop electrode action, system returns to detection and obtains furnace of calcium carbide C electrode current values, and and system
Preset C electrode currents setting value is compared, and obtains C electrode currents difference as become smaller before relatively adjusting, process terminates；Obtain C
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed as become larger before relatively adjusting
Terminate the process after lifting Electrode Operation；Such as reach C electrode regulatings lower limiting value or C electrode voltages reach C electrode voltage lower limiting values,
C electrodes are failure to actuate, and process terminates；
When B electrode voltages reach B electrode voltage lower limiting values, B electrodes only allow to do a liter electrode action, and drop electricity is forbidden in triggering
Pole interlocks；At this point, whether the associated electrodes C electrodes of system detectio B electrodes reach C electrode regulating lower limiting values, such as not up to C electrodes
Lower limiting value is adjusted, and C electrode voltage lower limiting values have not yet been reached in C electrode voltages, then C electrodes execute drop electrode action, and C electrodes execute
After the completion of dropping electrode action, system returns to detection and obtains furnace of calcium carbide C electrode current values, and is set with the C electrode currents of systemic presupposition
Definite value is compared, and obtains C electrode currents difference as become smaller before relatively adjusting, process terminates；C electrode currents difference is obtained as relatively adjusted
Become larger before whole, then judge this adjustment mistake, carries out reversed lifting Electrode Operation, terminate after having executed reversed lifting Electrode Operation
The process；Such as reach C electrode regulatings lower limiting value or C electrode voltages reach C electrode voltage lower limiting values, C electrodes are failure to actuate, process knot
Beam；
The method for carrying out logic judgment to C electrodes control output quantity specifically includes：
If C electrodes control output quantity is failure to actuate for electrode, process terminates；
If C electrodes control output quantity is to rise electrode action, then system further detects C electrode voltages；
When C electrode voltage upper limit values have not yet been reached in C electrode voltages, whether system detectio C electrodes reach in C electrode regulatings
Limit value, if not up to C electrode regulatings upper limit value, then C electrodes execution rise electrode and act, after the completion of C electrodes execution liter electrode acts,
System returns to detection and obtains furnace of calcium carbide C electrode current values, and is compared with the C electrode current setting values of systemic presupposition, obtains C
As become smaller before relatively adjusting, process terminates electrode current difference；C electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Secondary adjustment mistake carries out reversed lifting Electrode Operation, terminates the process after having executed reversed lifting Electrode Operation；Such as reach C electricity
Pole adjusts upper limit value, and C electrodes are failure to actuate, and whether the associated electrodes A electrodes that system continues to detect C electrodes reach in A electrode regulatings
Limit value, such as not up to A electrode regulatings upper limit value, and A electrode voltage upper limit values have not yet been reached in A electrode voltages, then A electrodes execute liter
Electrode acts, and after the completion of A electrodes execute liter electrode action, system returns to detection and obtains furnace of calcium carbide A electrode current values, and and system
Preset A electrode currents setting value is compared, and obtains A electrode currents difference as become smaller before relatively adjusting, process terminates；Obtain A
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed as become larger before relatively adjusting
Terminate the process after lifting Electrode Operation；Such as reach A electrode regulatings upper limit value or A electrode voltages reach A electrode voltage upper limit values,
A electrodes are failure to actuate, and process terminates；
When C electrode voltages reach C electrode voltage upper limit values, C electrodes only allow to do drop electrode action, and a liter electricity is forbidden in triggering
Pole interlocks；At this point, whether the associated electrodes A electrodes of system detectio C electrodes reach A electrode regulating upper limit values, such as not up to A electrodes
Upper limit value is adjusted, and A electrode voltage upper limit values have not yet been reached in A electrode voltages, then A electrodes, which execute, rises electrode action, and A electrodes execute
After the completion of rising electrode action, system returns to detection and obtains furnace of calcium carbide A electrode current values, and is set with the A electrode currents of systemic presupposition
Definite value is compared, and obtains A electrode currents difference as become smaller before relatively adjusting, process terminates；A electrode currents difference is obtained as relatively adjusted
Become larger before whole, then judge this adjustment mistake, carries out reversed lifting Electrode Operation, terminate after having executed reversed lifting Electrode Operation
The process；Such as reach A electrode regulatings upper limit value or A electrode voltages reach A electrode voltage upper limit values, A electrodes are failure to actuate, process knot
Beam；
If C electrodes control output quantity is drop electrode action, then system further detects C electrode voltages；
When C electrode voltage lower limiting values have not yet been reached in C electrode voltages, whether system detectio C electrodes reach under C electrode regulatings
Limit value, such as not up to C electrode regulatings lower limiting value, then C electrodes execution are dropped electrode and are acted, after the completion of C electrodes execution drop electrode acts,
System returns to detection and obtains furnace of calcium carbide C electrode current values, and is compared with the C electrode current setting values of systemic presupposition, obtains C
As become smaller before relatively adjusting, process terminates electrode current difference；C electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Secondary adjustment mistake carries out reversed lifting Electrode Operation, terminates the process after having executed reversed lifting Electrode Operation；Such as reach C electricity
Pole adjusts lower limiting value, and C electrodes are failure to actuate, and whether the associated electrodes A electrodes that system continues to detect C electrodes reach under A electrode regulatings
Limit value, such as not up to A electrode regulatings lower limiting value, and A electrode voltage lower limiting values have not yet been reached in A electrode voltages, then A electrodes execute drop
Electrode acts, and after the completion of A electrodes execute drop electrode action, system returns to detection and obtains furnace of calcium carbide A electrode current values, and and system
Preset A electrode currents setting value is compared, and obtains A electrode currents difference as become smaller before relatively adjusting, process terminates；Obtain A
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed as become larger before relatively adjusting
Terminate the process after lifting Electrode Operation；Such as reach A electrode regulatings lower limiting value or A electrode voltages reach A electrode voltage lower limiting values,
A electrodes are failure to actuate, and process terminates；
When C electrode voltages reach C electrode voltage lower limiting values, C electrodes only allow to do a liter electrode action, and drop electricity is forbidden in triggering
Pole interlocks；At this point, whether the associated electrodes A electrodes of system detectio C electrodes reach A electrode regulating lower limiting values, such as not up to A electrodes
Lower limiting value is adjusted, and A electrode voltage lower limiting values have not yet been reached in A electrode voltages, then A electrodes execute drop electrode action, and A electrodes execute
After the completion of dropping electrode action, system returns to detection and obtains furnace of calcium carbide A electrode current values, and is set with the A electrode currents of systemic presupposition
Definite value is compared, and obtains A electrode currents difference as become smaller before relatively adjusting, process terminates；A electrode currents difference is obtained as relatively adjusted
Become larger before whole, then judge this adjustment mistake, carries out reversed lifting Electrode Operation, terminate after having executed reversed lifting Electrode Operation
The process；Such as reach A electrode regulatings lower limiting value or A electrode voltages reach A electrode voltage lower limiting values, A electrodes are failure to actuate, process knot
Beam；
Two, adjustment period control strategy：
Into the furnace period is gone out, Electrode Operation can be automatically into adjustment period, by three electrodes of adjustment period control strategy pair after twenty minutes
Be adjusted, adjustment period control strategy is identical as furnace period control strategy is gone out, adjustment period A electrodes, B electrodes, C electrodes adjusting lower limit
Value is respectively less than out the adjusting lower limiting value of furnace period corresponding A electrodes, B electrodes, C electrodes；The adjusting of adjustment period A electrode, B electrodes, C electrodes
Upper limit value is all higher than out the adjusting upper limit value of furnace period corresponding A electrodes, B electrodes, C electrodes；
Three, stationary phase control strategy：
Electrode Operation can be automatically into stationary phase, by three electrodes of stationary phase control strategy pair after into 15 minutes adjustment periods
It is adjusted, stationary phase control strategy is identical as furnace period control strategy is gone out, and by adjusting the operation of phase, the operating point of electrode has connect
Nearly balance, stationary phase A electrode, B electrodes, C electrodes adjusting lower limiting value be all higher than out furnace period corresponding A electrodes, B electrodes, C electrodes
Adjust lower limiting value；Stationary phase A electrode, B electrodes, C electrodes adjusting upper limit value be respectively less than out furnace period corresponding A electrodes, B electrodes, C electricity
The adjusting upper limit value of pole.The adjustment of stationary phase electrode is finely adjusted close to the region of three-phase electrode current setting value, ensures electricity
The stabilization of pole tip position.
Specifically, the A electrode regulatings lower limiting value is that A electrode tips move down critical distance, the A in a cycle
Electrode regulating upper limit value is that A electrode tips move up critical distance in a cycle；The B electrode regulatings lower limiting value is one
B electrode tips move down critical distance in period, and the B electrode regulatings upper limit value is that B electrode tips are upward in a cycle
Moving limit distance；The C electrode regulatings lower limiting value is that C electrode tips move down critical distance, the C electricity in a cycle
It is that C electrode tips move up critical distance in a cycle that pole, which adjusts upper limit value,；The regulated quantity of A electrodes, B electrodes and C electrodes
The sum of distance and Electrode Pressure Slipping Volume are moved up and down for counter electrode holder position.The ascending, descending electricity of A electrodes, B electrodes and C electrodes
Pole action is realized by adjusting the position of electrode holde；Electrode Fluctuation adjusted one per 40-60 minutes by adjusting realization manually
It is secondary.
Preferably, when electrode holde position reaches electrode holde position upper and lower limit, triggering is forbidden lifting electrode finger
It enables, can only be adjusted by the lifting button on operation console, avoid causing electrode accident.
Preferably, default cannot carry out Electrode Fluctuation going out the furnace period, forbid pressing electrode connection into furnace period triggering is gone out
Lock terminates furnace period triggering and releases and forbids pressing electrode interlocking, therefore Electrode Fluctuation can only be carried out in adjustment period, stationary phase, be kept away
Exempt to press the phenomenon that electrode influences are come out of the stove.
Preferably, it is described go out furnace period control strategy, the adjustment period control strategy and the stationary phase control strategy wrap
It includes furnace of calcium carbide and collapses and expect judgment module, when system detectio electrode current quickly reduces and gradually gos up to initial value, be judged as occurring
Furnace of calcium carbide collapses material, and system trigger is forbidden lifting electrode commands, after electric current it is basic it is steady after, be judged as that the furnace of calcium carbide material that collapses terminates, be
System triggering, which releases, to be forbidden lifting electrode commands, avoids the occurrence of the phenomenon that electrode holde position frequently adjusts when collapsing material.
Specifically, on the furnace of calcium carbide for burning transformer is not separately provided, burn-through operation is carried out before coming out of the stove, and burn electricity
Stream can be superimposed with A electrodes or the electrode current of B electrodes or C electrodes, and when system carries out operation, the influence of arc burner electric current is rejected
Current deviation calculating is carried out afterwards, avoids the influence that arc burner electric current controls electrode holde position in this way.
Preferably, the high limit of electrode current setting of A electrodes, B electrodes and C electrodes is 90KA, when A electrodes or B electrodes or C
When the electrode current of electrode exceeds 90KA, control system is sent out automatically proposes respective electrode instruction, and the electrode current is made to be not higher than
90KA。
Each stove of furnace of calcium carbide is classified as one by the present invention according to this concept of furnace of calcium carbide production run feature introducing cycle theory
A period, while a cycle is decomposed into out three furnace period, adjustment period, stationary phase working stages, and to three different operatings
Stage implements different electrode control strategies；It is provided with electrode relevance according to the relationship that influences each other between three-phase electrode, together
When increase electrode tip displacement distance up and down limit, acquisition electrode electric current, electrode voltage, electrode in furnace of calcium carbide operational process
Resistance, electrode position, Electrode Pressure Slipping Volume, transformer gear, furnace temperature, bottom temperature, the furnaces of calcium carbide electrode such as flue temperature control phase
The major parameter of pass needs desired value, that is, setting value that an electrode current is given according to the service condition of system when operation, by
System according to predetermined registration operation method judged whether by the way of fuzzy control to electrode execute descending operation and lifting how much, electrode
Lift adjustment is controlled using trend, and adjusted value is not fixed, although rise fall of electrodes adjustment each time is not optimum apjustment value,
But control method can make this regulated quantity gradually approach optimum value, while electric current also being made gradually to tend to desired value, whole process electricity
The fluctuation very little of stone stove, to realize furnace of calcium carbide stable operation.
Advantages of the present invention：
The accuracy control method of furnace of calcium carbide rise fall of electrodes of the present invention not only solves three-phase electrode current balance type control problem,
The problems such as also solving the three-phase electrode balance of voltage, power-balance simultaneously and entering stove balance, reduces the fluctuation of the furnace of calcium carbide working of a furnace, most
Furnace of calcium carbide equipotential Effec-tive Function is realized eventually.
The present invention is mainly using electrical principle and furnace of calcium carbide electrode operating condition as foundation, electricity that inventor is summarized for many years
Stone stove Electrode Operation controls theory and gimmick combination fuzzy operation is theoretical, sequencing is realized by computer, to reach according to set
Operating concept carries out furnace of calcium carbide rise fall of electrodes the purpose of automatic and accurate control, can simulate manually according to optimum way to calcium carbide
Stove rise fall of electrodes carries out real-time control.Full automation controls, and is not necessarily to manual hand manipulation's furnace of calcium carbide, effectively avoids artificially accidentally grasping
Make, electrode accident rate substantially reduces, and realizes the safe and stable operation of furnace of calcium carbide.
Description of the drawings：
Fig. 1 is the control principle block diagram of the accuracy control method of furnace of calcium carbide rise fall of electrodes.
Specific implementation mode：
Embodiment 1：Each stove of furnace of calcium carbide is classified as a cycle, together by the accuracy control method of furnace of calcium carbide rise fall of electrodes
When a cycle is decomposed into out three furnace period, adjustment period and stationary phase working stages, and three different operating stages are distinguished
Correspondence is implemented furnace period control strategy, adjustment period control strategy and stationary phase control strategy；The electrode control of each working stage
Strategy individually controls three-phase electrode, and sets electrode relevance according to the correlation of three-phase electrode, passes through
Control of the associated electrodes holder position realization to the electric current, voltage of primary electrode is adjusted, to make three-phase electrode holder position
Adjustment connects each other, by the control of three-phase electrode holder position in suitable position, ensures furnace of calcium carbide stable operation.
Furnace of calcium carbide Electrode control strategy includes：Go out furnace period control strategy, adjustment period control strategy and stationary phase control
Strategy presses out the electrode holder of furnace period control strategy, adjustment period control strategy and stationary phase control strategy to three-phase electrode successively
After device position is adjusted, it is a regulating cycle to complete one cycle, and each regulating cycle is rerun, kept away
Exempt to influence each other during each week；
One, go out furnace period control strategy：
(1) detection, which calculates, obtains electrode control output quantity
System, which constantly detects, obtains furnace of calcium carbide A electrode current values, and is compared with the A electrode current setting values of systemic presupposition
Compared with obtaining the change rate of A electrode currents difference and A electrode current differences, then A electrode currents difference and A electrode current differences
Change rate after modern fuzzy algorithm operation, obtain A electrodes control output quantity；
Detection, which calculates to obtain B electrodes control output quantity and detect, calculates the method for obtaining C electrodes control output quantity and detection
The method for calculating acquisition A electrodes control output quantity is identical；
(2) logic judgment is carried out to electrode control output quantity, and then the position for completing three electrodes is adjusted；
The method for carrying out logic judgment to A electrodes control output quantity specifically includes：
If A electrodes control output quantity is failure to actuate for electrode, process terminates；
If A electrodes control output quantity is to rise electrode action, then system further detects A electrode voltages；
When A electrode voltage upper limit values have not yet been reached in A electrode voltages, whether system detectio A electrodes reach in A electrode regulatings
Limit value, if not up to A electrode regulatings upper limit value, then A electrodes execution rise electrode and act, after the completion of A electrodes execution liter electrode acts,
System returns to detection and obtains furnace of calcium carbide A electrode current values, and is compared with the A electrode current setting values of systemic presupposition, obtains A
As become smaller before relatively adjusting, process terminates electrode current difference；A electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Secondary adjustment mistake carries out reversed lifting Electrode Operation, terminates the process after having executed reversed lifting Electrode Operation；Such as reach A electricity
Pole adjusts upper limit value, and A electrodes are failure to actuate, and whether the associated electrodes B electrodes that system continues to detect A electrodes reach in B electrode regulatings
Limit value, such as not up to B electrode regulatings upper limit value, and B electrode voltage upper limit values have not yet been reached in B electrode voltages, then B electrodes execute liter
Electrode acts, and after the completion of B electrodes execute liter electrode action, system returns to detection and obtains furnace of calcium carbide B electrode current values, and and system
Preset B electrode currents setting value is compared, and obtains B electrode currents difference as become smaller before relatively adjusting, process terminates；Obtain B
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed as become larger before relatively adjusting
Terminate the process after lifting Electrode Operation；Such as reach B electrode regulatings upper limit value or B electrode voltages reach B electrode voltage upper limit values,
B electrodes are failure to actuate, and process terminates；
When A electrode voltages reach A electrode voltage upper limit values, A electrodes only allow to do drop electrode action, and a liter electricity is forbidden in triggering
Pole interlocks；At this point, whether the associated electrodes B electrodes of system detectio A electrodes reach B electrode regulating upper limit values, such as not up to B electrodes
Upper limit value is adjusted, and B electrode voltage upper limit values have not yet been reached in B electrode voltages, then B electrodes, which execute, rises electrode action, and B electrodes execute
After the completion of rising electrode action, system returns to detection and obtains furnace of calcium carbide B electrode current values, and is set with the B electrode currents of systemic presupposition
Definite value is compared, and obtains B electrode currents difference as become smaller before relatively adjusting, process terminates；B electrode currents difference is obtained as relatively adjusted
Become larger before whole, then judge this adjustment mistake, carries out reversed lifting Electrode Operation, terminate after having executed reversed lifting Electrode Operation
The process；Such as reach B electrode regulatings upper limit value or B electrode voltages reach B electrode voltage upper limit values, B electrodes are failure to actuate, process knot
Beam；
If A electrodes control output quantity is drop electrode action, then system further detects A electrode voltages；
When A electrode voltage lower limiting values have not yet been reached in A electrode voltages, whether system detectio A electrodes reach under A electrode regulatings
Limit value, such as not up to A electrode regulatings lower limiting value, then A electrodes execution are dropped electrode and are acted, after the completion of A electrodes execution drop electrode acts,
System returns to detection and obtains furnace of calcium carbide A electrode current values, and is compared with the A electrode current setting values of systemic presupposition, obtains A
As become smaller before relatively adjusting, process terminates electrode current difference；A electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Secondary adjustment mistake carries out reversed lifting Electrode Operation, terminates the process after having executed reversed lifting Electrode Operation；Such as reach A electricity
Pole adjusts lower limiting value, and A electrodes are failure to actuate, and whether the associated electrodes B electrodes that system continues to detect A electrodes reach under B electrode regulatings
Limit value, such as not up to B electrode regulatings lower limiting value, and B electrode voltage lower limiting values have not yet been reached in B electrode voltages, then B electrodes execute drop
Electrode acts, and after the completion of B electrodes execute drop electrode action, system returns to detection and obtains furnace of calcium carbide B electrode current values, and and system
Preset B electrode currents setting value is compared, and obtains B electrode currents difference as become smaller before relatively adjusting, process terminates；Obtain B
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed as become larger before relatively adjusting
Terminate the process after lifting Electrode Operation；Such as reach B electrode regulatings lower limiting value or B electrode voltages reach B electrode voltage lower limiting values,
B electrodes are failure to actuate, and process terminates；
When A electrode voltages reach A electrode voltage lower limiting values, A electrodes only allow to do a liter electrode action, and drop electricity is forbidden in triggering
Pole interlocks；At this point, whether the associated electrodes B electrodes of system detectio A electrodes reach B electrode regulating lower limiting values, such as not up to B electrodes
Lower limiting value is adjusted, and B electrode voltage lower limiting values have not yet been reached in B electrode voltages, then B electrodes execute drop electrode action, and B electrodes execute
After the completion of dropping electrode action, system returns to detection and obtains furnace of calcium carbide B electrode current values, and is set with the B electrode currents of systemic presupposition
Definite value is compared, and obtains B electrode currents difference as become smaller before relatively adjusting, process terminates；B electrode currents difference is obtained as relatively adjusted
Become larger before whole, then judge this adjustment mistake, carries out reversed lifting Electrode Operation, terminate after having executed reversed lifting Electrode Operation
The process；Such as reach B electrode regulatings lower limiting value or B electrode voltages reach B electrode voltage lower limiting values, B electrodes are failure to actuate, process knot
Beam；
The method for carrying out logic judgment to B electrodes control output quantity specifically includes：
If B electrodes control output quantity is failure to actuate for electrode, process terminates；
If B electrodes control output quantity is to rise electrode action, then system further detects B electrode voltages；
When B electrode voltage upper limit values have not yet been reached in B electrode voltages, whether system detectio B electrodes reach in B electrode regulatings
Limit value, if not up to B electrode regulatings upper limit value, then B electrodes execution rise electrode and act, after the completion of B electrodes execution liter electrode acts,
System returns to detection and obtains furnace of calcium carbide B electrode current values, and is compared with the B electrode current setting values of systemic presupposition, obtains B
As become smaller before relatively adjusting, process terminates electrode current difference；B electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Secondary adjustment mistake carries out reversed lifting Electrode Operation, terminates the process after having executed reversed lifting Electrode Operation；Such as reach B electricity
Pole adjusts upper limit value, and B electrodes are failure to actuate, and whether the associated electrodes C electrodes that system continues to detect B electrodes reach in C electrode regulatings
Limit value, such as not up to C electrode regulatings upper limit value, and C electrode voltage upper limit values have not yet been reached in C electrode voltages, then C electrodes execute liter
Electrode acts, and after the completion of C electrodes execute liter electrode action, system returns to detection and obtains furnace of calcium carbide C electrode current values, and and system
Preset C electrode currents setting value is compared, and obtains C electrode currents difference as become smaller before relatively adjusting, process terminates；Obtain C
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed as become larger before relatively adjusting
Terminate the process after lifting Electrode Operation；Such as reach C electrode regulatings upper limit value or C electrode voltages reach C electrode voltage upper limit values,
C electrodes are failure to actuate, and process terminates；
When B electrode voltages reach B electrode voltage upper limit values, B electrodes only allow to do drop electrode action, and a liter electricity is forbidden in triggering
Pole interlocks；At this point, whether the associated electrodes C electrodes of system detectio B electrodes reach C electrode regulating upper limit values, such as not up to C electrodes
Upper limit value is adjusted, and C electrode voltage upper limit values have not yet been reached in C electrode voltages, then C electrodes, which execute, rises electrode action, and C electrodes execute
After the completion of rising electrode action, system returns to detection and obtains furnace of calcium carbide C electrode current values, and is set with the C electrode currents of systemic presupposition
Definite value is compared, and obtains C electrode currents difference as become smaller before relatively adjusting, process terminates；C electrode currents difference is obtained as relatively adjusted
Become larger before whole, then judge this adjustment mistake, carries out reversed lifting Electrode Operation, terminate after having executed reversed lifting Electrode Operation
The process；Such as reach C electrode regulatings upper limit value or C electrode voltages reach C electrode voltage upper limit values, C electrodes are failure to actuate, process knot
Beam；
If B electrodes control output quantity is drop electrode action, then system further detects B electrode voltages；
When B electrode voltage lower limiting values have not yet been reached in B electrode voltages, whether system detectio B electrodes reach under B electrode regulatings
Limit value, such as not up to B electrode regulatings lower limiting value, then B electrodes execution are dropped electrode and are acted, after the completion of B electrodes execution drop electrode acts,
System returns to detection and obtains furnace of calcium carbide B electrode current values, and is compared with the B electrode current setting values of systemic presupposition, obtains B
As become smaller before relatively adjusting, process terminates electrode current difference；B electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Secondary adjustment mistake carries out reversed lifting Electrode Operation, terminates the process after having executed reversed lifting Electrode Operation；Such as reach B electricity
Pole adjusts lower limiting value, and B electrodes are failure to actuate, and whether the associated electrodes C electrodes that system continues to detect B electrodes reach under C electrode regulatings
Limit value, such as not up to C electrode regulatings lower limiting value, and C electrode voltage lower limiting values have not yet been reached in C electrode voltages, then C electrodes execute drop
Electrode acts, and after the completion of C electrodes execute drop electrode action, system returns to detection and obtains furnace of calcium carbide C electrode current values, and and system
Preset C electrode currents setting value is compared, and obtains C electrode currents difference as become smaller before relatively adjusting, process terminates；Obtain C
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed as become larger before relatively adjusting
Terminate the process after lifting Electrode Operation；Such as reach C electrode regulatings lower limiting value or C electrode voltages reach C electrode voltage lower limiting values,
C electrodes are failure to actuate, and process terminates；
When B electrode voltages reach B electrode voltage lower limiting values, B electrodes only allow to do a liter electrode action, and drop electricity is forbidden in triggering
Pole interlocks；At this point, whether the associated electrodes C electrodes of system detectio B electrodes reach C electrode regulating lower limiting values, such as not up to C electrodes
Lower limiting value is adjusted, and C electrode voltage lower limiting values have not yet been reached in C electrode voltages, then C electrodes execute drop electrode action, and C electrodes execute
After the completion of dropping electrode action, system returns to detection and obtains furnace of calcium carbide C electrode current values, and is set with the C electrode currents of systemic presupposition
Definite value is compared, and obtains C electrode currents difference as become smaller before relatively adjusting, process terminates；C electrode currents difference is obtained as relatively adjusted
Become larger before whole, then judge this adjustment mistake, carries out reversed lifting Electrode Operation, terminate after having executed reversed lifting Electrode Operation
The process；Such as reach C electrode regulatings lower limiting value or C electrode voltages reach C electrode voltage lower limiting values, C electrodes are failure to actuate, process knot
Beam；
The method for carrying out logic judgment to C electrodes control output quantity specifically includes：
If C electrodes control output quantity is failure to actuate for electrode, process terminates；
If C electrodes control output quantity is to rise electrode action, then system further detects C electrode voltages；
When C electrode voltage upper limit values have not yet been reached in C electrode voltages, whether system detectio C electrodes reach in C electrode regulatings
Limit value, if not up to C electrode regulatings upper limit value, then C electrodes execution rise electrode and act, after the completion of C electrodes execution liter electrode acts,
System returns to detection and obtains furnace of calcium carbide C electrode current values, and is compared with the C electrode current setting values of systemic presupposition, obtains C
As become smaller before relatively adjusting, process terminates electrode current difference；C electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Secondary adjustment mistake carries out reversed lifting Electrode Operation, terminates the process after having executed reversed lifting Electrode Operation；Such as reach C electricity
Pole adjusts upper limit value, and C electrodes are failure to actuate, and whether the associated electrodes A electrodes that system continues to detect C electrodes reach in A electrode regulatings
Limit value, such as not up to A electrode regulatings upper limit value, and A electrode voltage upper limit values have not yet been reached in A electrode voltages, then A electrodes execute liter
Electrode acts, and after the completion of A electrodes execute liter electrode action, system returns to detection and obtains furnace of calcium carbide A electrode current values, and and system
Preset A electrode currents setting value is compared, and obtains A electrode currents difference as become smaller before relatively adjusting, process terminates；Obtain A
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed as become larger before relatively adjusting
Terminate the process after lifting Electrode Operation；Such as reach A electrode regulatings upper limit value or A electrode voltages reach A electrode voltage upper limit values,
A electrodes are failure to actuate, and process terminates；
When C electrode voltages reach C electrode voltage upper limit values, C electrodes only allow to do drop electrode action, and a liter electricity is forbidden in triggering
Pole interlocks；At this point, whether the associated electrodes A electrodes of system detectio C electrodes reach A electrode regulating upper limit values, such as not up to A electrodes
Upper limit value is adjusted, and A electrode voltage upper limit values have not yet been reached in A electrode voltages, then A electrodes, which execute, rises electrode action, and A electrodes execute
After the completion of rising electrode action, system returns to detection and obtains furnace of calcium carbide A electrode current values, and is set with the A electrode currents of systemic presupposition
Definite value is compared, and obtains A electrode currents difference as become smaller before relatively adjusting, process terminates；A electrode currents difference is obtained as relatively adjusted
Become larger before whole, then judge this adjustment mistake, carries out reversed lifting Electrode Operation, terminate after having executed reversed lifting Electrode Operation
The process；Such as reach A electrode regulatings upper limit value or A electrode voltages reach A electrode voltage upper limit values, A electrodes are failure to actuate, process knot
Beam；
If C electrodes control output quantity is drop electrode action, then system further detects C electrode voltages；
When C electrode voltage lower limiting values have not yet been reached in C electrode voltages, whether system detectio C electrodes reach under C electrode regulatings
Limit value, such as not up to C electrode regulatings lower limiting value, then C electrodes execution are dropped electrode and are acted, after the completion of C electrodes execution drop electrode acts,
System returns to detection and obtains furnace of calcium carbide C electrode current values, and is compared with the C electrode current setting values of systemic presupposition, obtains C
As become smaller before relatively adjusting, process terminates electrode current difference；C electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Secondary adjustment mistake carries out reversed lifting Electrode Operation, terminates the process after having executed reversed lifting Electrode Operation；Such as reach C electricity
Pole adjusts lower limiting value, and C electrodes are failure to actuate, and whether the associated electrodes A electrodes that system continues to detect C electrodes reach under A electrode regulatings
Limit value, such as not up to A electrode regulatings lower limiting value, and A electrode voltage lower limiting values have not yet been reached in A electrode voltages, then A electrodes execute drop
Electrode acts, and after the completion of A electrodes execute drop electrode action, system returns to detection and obtains furnace of calcium carbide A electrode current values, and and system
Preset A electrode currents setting value is compared, and obtains A electrode currents difference as become smaller before relatively adjusting, process terminates；Obtain A
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed as become larger before relatively adjusting
Terminate the process after lifting Electrode Operation；Such as reach A electrode regulatings lower limiting value or A electrode voltages reach A electrode voltage lower limiting values,
A electrodes are failure to actuate, and process terminates；
When C electrode voltages reach C electrode voltage lower limiting values, C electrodes only allow to do a liter electrode action, and drop electricity is forbidden in triggering
Pole interlocks；At this point, whether the associated electrodes A electrodes of system detectio C electrodes reach A electrode regulating lower limiting values, such as not up to A electrodes
Lower limiting value is adjusted, and A electrode voltage lower limiting values have not yet been reached in A electrode voltages, then A electrodes execute drop electrode action, and A electrodes execute
After the completion of dropping electrode action, system returns to detection and obtains furnace of calcium carbide A electrode current values, and is set with the A electrode currents of systemic presupposition
Definite value is compared, and obtains A electrode currents difference as become smaller before relatively adjusting, process terminates；A electrode currents difference is obtained as relatively adjusted
Become larger before whole, then judge this adjustment mistake, carries out reversed lifting Electrode Operation, terminate after having executed reversed lifting Electrode Operation
The process；Such as reach A electrode regulatings lower limiting value or A electrode voltages reach A electrode voltage lower limiting values, A electrodes are failure to actuate, process knot
Beam；
Two, adjustment period control strategy：
Into the furnace period is gone out, Electrode Operation can be automatically into adjustment period, by three electrodes of adjustment period control strategy pair after twenty minutes
Be adjusted, adjustment period control strategy is identical as furnace period control strategy is gone out, adjustment period A electrodes, B electrodes, C electrodes adjusting lower limit
Value is respectively less than out the adjusting lower limiting value of furnace period corresponding A electrodes, B electrodes, C electrodes；The adjusting of adjustment period A electrode, B electrodes, C electrodes
Upper limit value is all higher than out the adjusting upper limit value of furnace period corresponding A electrodes, B electrodes, C electrodes；
Three, stationary phase control strategy：
Electrode Operation can be automatically into stationary phase, by three electrodes of stationary phase control strategy pair after into 15 minutes adjustment periods
It is adjusted, stationary phase control strategy is identical as furnace period control strategy is gone out, and by adjusting the operation of phase, the operating point of electrode has connect
Nearly balance, stationary phase A electrode, B electrodes, C electrodes adjusting lower limiting value be all higher than out furnace period corresponding A electrodes, B electrodes, C electrodes
Adjust lower limiting value；Stationary phase A electrode, B electrodes, C electrodes adjusting upper limit value be respectively less than out furnace period corresponding A electrodes, B electrodes, C electricity
The adjusting upper limit value of pole.The adjustment of stationary phase electrode is finely adjusted close to the region of three-phase electrode current setting value, ensures electricity
The stabilization of pole tip position.
Wherein, the A electrode regulatings lower limiting value is that A electrode tips move down critical distance, the A electricity in a cycle
It is that A electrode tips move up critical distance in a cycle that pole, which adjusts upper limit value,；The B electrode regulatings lower limiting value is a week
B electrode tips move down critical distance in phase, the B electrode regulatings upper limit value be in a cycle B electrode tips to moving up
Dynamic critical distance；The C electrode regulatings lower limiting value is that C electrode tips move down critical distance, the C electrodes in a cycle
It is that C electrode tips move up critical distance in a cycle to adjust upper limit value；The regulated quantity of A electrodes, B electrodes and C electrodes is
Counter electrode holder position moves up and down the sum of distance and Electrode Pressure Slipping Volume.
When electrode holde position reaches electrode holde position upper and lower limit, triggering is forbidden lifting electrode commands, can only
It is adjusted by the lifting button on operation console, avoids causing electrode accident.
Default cannot carry out Electrode Fluctuation going out the furnace period, forbid pressing electrode interlocking into furnace period triggering is gone out, terminate
Go out furnace period triggering releasing to forbid pressing electrode interlocking, therefore Electrode Fluctuation can only be carried out in adjustment period, stationary phase, avoided and pressed
The phenomenon that electrode influences are come out of the stove.
It is described go out furnace period control strategy, the adjustment period control strategy and the stationary phase control strategy include furnace of calcium carbide
Collapse material judgment module, when system detectio electrode current quickly reduces and gradually gos up to initial value, is judged as that furnace of calcium carbide, which occurs, to collapse
Material, system trigger is forbidden lifting electrode commands, after electric current is basic steady, is judged as that the furnace of calcium carbide material that collapses terminates, system trigger solution
Except forbidding lifting electrode commands, the phenomenon that electrode holde position frequently adjusts when collapsing material is avoided the occurrence of.
On the furnace of calcium carbide for burning transformer is not separately provided, burn-through operation is carried out before coming out of the stove, and burn electric current meeting and A
Electrode or the superposition of the electrode current of B electrodes or C electrodes, when system carries out operation, carry out after the influence of arc burner electric current is rejected
Current deviation calculates, and avoids the influence that arc burner electric current controls electrode holde position in this way.
The high limit of electrode current setting of A electrodes, B electrodes and C electrodes is 90KA, when A electrodes or B electrodes or C electrodes
When electrode current exceeds 90KA, control system is sent out automatically proposes respective electrode instruction, and the electrode current is made to be not higher than 90KA.
In the present embodiment, using mineral hot furnace FUZZY ALGORITHMS FOR CONTROL, electrode control output quantity is obtained, specially：According to electrode
Current deviation ei, electrode current deviation change rate Δ ei, electrode be inserted into furnace charge in depth dtIt is inserted into depth in furnace charge with electrode
Change rate Δ dt, using fuzzy controller to variable quantity (rising or falling certain altitude) m of electrodes in mine hot stove positiontIt carries out
It adjusts, wherein the membership function of fuzzy controller and fuzzy control rule are obtained according to expertise, the output of controller
It is to be calculated according to fuzzy nearest neighbor distance weighted interpolation, to improve the control accuracy of fuzzy controller.Electrode current is inclined
Poor ei, electrode current deviation change rate Δ ei, electrode be inserted into furnace charge in depth dt, electrode be inserted into furnace charge in depth variation
Rate Δ dtWith the variable quantity m of electrode positiontCorresponding linguistic variable be respectively Ei、ΔEi、Dt、ΔDtAnd Mt, Ei、ΔEi、ΔDt
And MtDomain be [- 10, -8, -6, -4, -2,0,2,4,6,8,10], Linguistic Value then selects [N, ZO, P], respectively represents
It is negative, zero, just；DtDomain be [0,2,4,6,8,10], Linguistic Value then selects [ZO, PS, PB], respectively represents zero, is just small, just
Greatly；Corresponding degree of membership assignment table can be established according to the experience of the knowledge and technology personnel of expert, as shown in table 1~5：
Table 1EiDegree of membership assignment table
| -10 | -8 | -6 | -4 | -2 | 0 | 2 | 4 | 6 | 8 | 10 | |
| N | 1 | 0.7 | 0.5 | 0.3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Z0 | 0 | 0 | 0 | 0.6 | 0.8 | 1 | 0.8 | 0.6 | 0 | 0 | 0 |
| P | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.3 | 0.6 | 0.8 | 1 |
2 Δ E of tableiDegree of membership assignment table
| -10 | -8 | -6 | -4 | -2 | 0 | 2 | 4 | 6 | 8 | 10 | |
| N | 1 | 0.7 | 0.5 | 0.3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Z0 | 0 | 0 | 0 | 0.6 | 0.8 | 1 | 0.8 | 0.6 | 0 | 0 | 0 |
| P | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.3 | 0.6 | 0.8 | 1 |
Table 3DtDegree of membership assignment table
| 0 | 2 | 4 | 6 | 8 | 10 | |
| Z0 | 1 | 0.8 | 0 | 0 | 0 | 0 |
| PS | 0 | 0.6 | 0.8 | 1 | 0.4 | 0 |
| PB | 0 | 0 | 0.2 | 0.6 | 0.7 | 1 |
4 Δ D of tabletDegree of membership assignment table
| -10 | -8 | -6 | -4 | -2 | 0 | 2 | 4 | 6 | 8 | 10 | |
| N | 1 | 0.7 | 0.5 | 0.4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Z0 | 0 | 0 | 0 | 0.5 | 0.7 | 1 | 0.7 | 0.5 | 0 | 0 | 0 |
| P | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.4 | 0.5 | 0.7 | 1 |
Table 5MtDegree of membership assignment table
| -10 | -8 | -6 | -4 | -2 | 0 | 2 | 4 | 6 | 8 | 10 | |
| N | 1 | 0.8 | 0.6 | 0.4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Z0 | 0 | 0 | 0 | 0.6 | 0.8 | 1 | 0.8 | 0.6 | 0 | 0 | 0 |
| P | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.4 | 0.6 | 0.8 | 1 |
Can be obtained according to expertise and experience it is a series of shaped like " IF...THEN... " fuzzy control rule because 4
The Linguistic Value of input variable is 3, then the total quantity of fuzzy control rule is 81, as shown in table 6：
6 fuzzy control rule of table
According to above degree of membership assignment table and fuzzy control rule, then fuzzy controller structure is completed, in order to improve
The control accuracy of fuzzy controller obtains final control using fuzzy nearest neighbor distance weight interpolation algorithm and exports, specific as follows：
By electrode current deviation ej, electrode current deviation change rate Δ ei, electrode be inserted into furnace charge in depth dtAnd electrode
It is inserted into the change rate Δ d of depth in furnace chargetMeasured value transform to obtain x on corresponding domain respectively1、x2、x3、x4, then
Fuzzy controller input quantity is { x at this time1, x2, x3, x4, meet condition as described below (1) or condition then according to the input quantity
(2) different situations obtain practical control output；
Condition (1)：If x1=[x1] and x2=[x2] and x3=[x3] and x4=[x4] ([] is rounding operator), then it can be straight
It connects using above-mentioned 1~table of table, 6 degree of membership assignment table and fuzzy control rule, using maximum-minimum inference method and maximum person in servitude
The de-fuzzy process of category degree obtains the Linguistic Value grade of control output, then the grade point is multiplied by the variable quantity m of electrode positiont
Range, obtain practical control output u；
Condition (2)：If x1≠[x1] or x2≠[x2] or x3≠[x3] or x4≠[x4] ([] is rounding operator), then define 8
A neighbour's variables A0、A1、B0、B1、C0、C1、D0、D1, and enable A0=[x1], A1=[x1]+1, B0=[x2], B1=[x2]+1, C0=
[x3], C1=[x3]+1, D0=[x4], D1=[x4]+1, such fuzzy controller inputs { x1, x2, x3, x4In fuzzy rule former piece
Fuzzy Neighbor Points in space share 16, i.e. P0000={ A0, B0, C0, D0}、P0001={ A0, B0, C0, D1}、P0010={ A0,
B0, C1, D0}、P0011={ A0, B0, C1, D1}、P0100={ A0, B1, C0, D0}、P0101={ A0, B1, C0, D1}、P0110={ A0, B1,
C1, D0}、P0111={ A0, B1, C1, D1}、P1000={ A1, B0, C0, D0}、P1001={ A1, B0, C0, D1}、P1010={ A1, B0, C1,
D0}、P1011={ A1, B0, C1, D1}、P1100={ A1, B1, C0, D0}、P1101={ A1, B1, C0, D1}、P1110={ A1, B1, C1, D0}、
P1111={ A1, B1, C1, D1, this 16 fuzzy Neighbor Points Pijkq, i ∈ { 0,1 }, j ∈ { 0,1 }, k ∈ { 0,1 }, q ∈ { 0,1 } can
It is utilized respectively above-mentioned degree of membership assignment table and fuzzy control rule (table 1~6), using maximum-minimum inference method and maximum
The de-fuzzy process of degree of membership obtains this 16 fuzzy Neighbor Points PijkqThe Linguistic Value grade of corresponding control output, then
Grade point is multiplied by the variable quantity m of electrode positiontThis 16 fuzzy Neighbor Points P can be obtained in rangeijkqCorresponding control output
mijkq, i ∈ { 0,1 }, j ∈ { 0,1 }, k ∈ { 0,1 }, q ∈ { 0,1 } then calculate this 16 fuzzy Neighbor Points and PijkqFuzzy Control
Device processed inputs { x1, x2, x3, x4Between improvement Logistic distances, dijkq, i ∈ { 0,1 }, j ∈ { 0,1 }, k ∈ { 0,1 }, q ∈
{ 0,1 }, specific formula for calculation is as follows：
Wherein：Ai、Aj、AkAnd AqIt is neighbour's variable, and i ∈ { 0,1 }, j ∈ { 0,1 }, k ∈ { 0,1 }, q ∈ { 0,1 }.
Then this 16 fuzzy corresponding weight w of Neighbor Points are calculatedijkq, i ∈ { 0,1 }, j ∈ { 0,1 }, k ∈ 0,
1 }, { 0,1 } q ∈, specific formula for calculation is as follows：
Last basis calculates practical control output u, and specific formula for calculation is as follows：
After obtaining practical control output u according to above-mentioned condition (1) or condition (2), logic then is carried out to control output quantity
Judge, and then the position for completing three electrodes is adjusted.
By the method for the present invention, one month by a definite date trial operation has been carried out at present, and calcium carbide factory 11# furnaces of calcium carbide are run during operation
Stablize, device driving rate is maintained in very high level, and there has also been larger improvement for the key parameters such as calcium carbide yield and quality.With
Under to be furnace of calcium carbide compared by the method for the present invention front and back operating condition that puts into operation：
Table 1：The major parameter comparison of the latter moon before certain calcium carbide factory 11# furnaces of calcium carbide put into operation by the method for the present invention
By upper table it can be seen that：
Before furnace of calcium carbide puts into operation by the method for the present invention, 11# calcium carbide furnace apparatus driving rates are only 92.5%, and after putting into operation, device is opened
Vehicle rate improves 5.6%, has reached 98.1%.
After putting into operation by the method for the present invention calcium carbide furnace output is there has also been increasing substantially, 26.6 tons of average daily output increased, C3
Value is also reduced to 9.8 by 10.3.
Before and after comparison furnace of calcium carbide puts into operation by the method for the present invention, under the premise of electric current operates steadily, 11# furnace of calcium carbide loads carry
2179KW is risen, electrode average voltage improves 4V.
Certain calcium carbide factory of table 2 11# furnaces of calcium carbide put into operation by the method for the present invention after with the master of the 12# furnaces of calcium carbide of identical service condition
Want parameter comparison
By data above it can be seen that：After 11# furnaces of calcium carbide put into operation by the method for the present invention, device driving rate is compared with 12# calcium carbides
Stove is high by 0.3%, yield 16.2 ton day high compared with 12# furnaces of calcium carbide, and C3 values reduce by 0.3 compared with 12# furnaces of calcium carbide, and furnace of calcium carbide load is compared with 12# electricity
The high 1452KW of stone stove, voltage 3.3V high compared with 12# furnaces of calcium carbide, production status are better than 12# furnaces of calcium carbide.
It can be seen that by comparing above, furnace of calcium carbide puts into operation by the method for the present invention, is conducive to long-term furnace of calcium carbide, stabilization, high yield fortune
Row.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (8)
1. the accuracy control method of furnace of calcium carbide rise fall of electrodes, which is characterized in that each stove of furnace of calcium carbide is classified as a cycle, together
When a cycle is decomposed into out three furnace period, adjustment period and stationary phase working stages, and three different operating stages are distinguished
Correspondence is implemented furnace period control strategy, adjustment period control strategy and stationary phase control strategy；The electrode control of each working stage
Strategy individually controls three-phase electrode, and sets electrode relevance according to the correlation of three-phase electrode, passes through
Control of the associated electrodes holder position realization to the electric current, voltage of primary electrode is adjusted, to make three-phase electrode holder position
Adjustment connects each other, by the control of three-phase electrode holder position in suitable position, ensures furnace of calcium carbide stable operation.
2. the accuracy control method of furnace of calcium carbide rise fall of electrodes according to claim 1, which is characterized in that furnace of calcium carbide electrode liter
Dropping control strategy includes：Go out furnace period control strategy, adjustment period control strategy and stationary phase control strategy, presses out furnace period control successively
It is complete after the electrode holde position of three-phase electrode is adjusted in strategy, adjustment period control strategy and stationary phase control strategy
It is a regulating cycle at one cycle, each regulating cycle is rerun, and avoids mutual shadow occur during each week
It rings；
One, go out furnace period control strategy：
(1) detection, which calculates, obtains electrode control output quantity
System, which constantly detects, obtains furnace of calcium carbide A electrode current values, and is compared with the A electrode current setting values of systemic presupposition,
The change rate of A electrode currents difference and A electrode current differences is obtained, then the change of A electrode currents difference and A electrode current differences
Rate obtains A electrodes control output quantity after modern fuzzy algorithm operation；
Detect method and the detection calculating for calculating and obtaining that B electrodes control output quantity and detection calculating obtains C electrodes control output quantity
The method for obtaining A electrodes control output quantity is identical；
(2) logic judgment is carried out to electrode control output quantity, and then the position for completing three electrodes is adjusted；
The method for carrying out logic judgment to A electrodes control output quantity specifically includes：
If A electrodes control output quantity is failure to actuate for electrode, process terminates；
If A electrodes control output quantity is to rise electrode action, then system further detects A electrode voltages；
When A electrode voltage upper limit values have not yet been reached in A electrode voltages, whether system detectio A electrodes reach the A electrode regulating upper limits
It is worth, if not up to A electrode regulatings upper limit value, then A electrodes execution rise electrode and act, after the completion of A electrodes execution liter electrode acts, is
System returns to detection and obtains furnace of calcium carbide A electrode current values, and is compared with the A electrode current setting values of systemic presupposition, obtains A electricity
As become smaller before relatively adjusting, process terminates electrode current difference；A electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Mistake is adjusted, reversed lifting Electrode Operation is carried out, terminates the process after having executed reversed lifting Electrode Operation；Such as reach A electrodes
Upper limit value is adjusted, A electrodes are failure to actuate, and whether the associated electrodes B electrodes that system continues to detect A electrodes reach the B electrode regulating upper limits
Value, such as not up to B electrode regulatings upper limit value, and B electrode voltage upper limit values have not yet been reached in B electrode voltages, then B electrodes, which execute, rises electricity
Pole acts, and after the completion of B electrodes execute liter electrode action, system returns to detection and obtains furnace of calcium carbide B electrode current values, and pre- with system
If B electrode current setting values be compared, obtain B electrode currents difference as relatively adjust before become smaller, process terminates；Obtain B electricity
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed liter as become larger before relatively adjusting
Terminate the process after drop Electrode Operation；Such as reach B electrode regulatings upper limit value or B electrode voltages reach B electrode voltage upper limit values, B
Electrode is failure to actuate, and process terminates；
When A electrode voltages reach A electrode voltage upper limit values, A electrodes only allow to do drop electrode action, and a liter electrode connection is forbidden in triggering
Lock；At this point, whether the associated electrodes B electrodes of system detectio A electrodes reach B electrode regulating upper limit values, such as not up to B electrode regulatings
Upper limit value, and B electrode voltage upper limit values have not yet been reached in B electrode voltages, then B electrodes, which execute, rises electrode action, and B electrodes, which execute, rises electricity
Pole action after the completion of, system return detection obtain furnace of calcium carbide B electrode current values, and with the B electrode current setting values of systemic presupposition
It is compared, obtains B electrode currents difference as become smaller before relatively adjusting, process terminates；B electrode currents difference is obtained as before relatively adjusting
Become larger, then judge this adjustment mistake, carry out reversed lifting Electrode Operation, has executed end after reversed lifting Electrode Operation be somebody's turn to do into
Journey；Such as reach B electrode regulatings upper limit value or B electrode voltages reach B electrode voltage upper limit values, B electrodes are failure to actuate, and process terminates；
If A electrodes control output quantity is drop electrode action, then system further detects A electrode voltages；
When A electrode voltage lower limiting values have not yet been reached in A electrode voltages, whether system detectio A electrodes reach A electrode regulating lower limits
It is worth, such as not up to A electrode regulatings lower limiting value, then A electrodes execution drop electrode action are after the completion of A electrodes execution drop electrode acts
System returns to detection and obtains furnace of calcium carbide A electrode current values, and is compared with the A electrode current setting values of systemic presupposition, obtains A electricity
As become smaller before relatively adjusting, process terminates electrode current difference；A electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Mistake is adjusted, reversed lifting Electrode Operation is carried out, terminates the process after having executed reversed lifting Electrode Operation；Such as reach A electrodes
Lower limiting value is adjusted, A electrodes are failure to actuate, and whether the associated electrodes B electrodes that system continues to detect A electrodes reach B electrode regulating lower limits
Value, such as not up to B electrode regulatings lower limiting value, and B electrode voltage lower limiting values have not yet been reached in B electrode voltages, then B electrodes execute drop electricity
Pole acts, and after the completion of B electrodes execute drop electrode action, system returns to detection and obtains furnace of calcium carbide B electrode current values, and pre- with system
If B electrode current setting values be compared, obtain B electrode currents difference as relatively adjust before become smaller, process terminates；Obtain B electricity
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed liter as become larger before relatively adjusting
Terminate the process after drop Electrode Operation；Such as reach B electrode regulatings lower limiting value or B electrode voltages reach B electrode voltage lower limiting values, B
Electrode is failure to actuate, and process terminates；
When A electrode voltages reach A electrode voltage lower limiting values, A electrodes only allow to do a liter electrode action, and triggering is forbidden dropping electrode connection
Lock；At this point, whether the associated electrodes B electrodes of system detectio A electrodes reach B electrode regulating lower limiting values, such as not up to B electrode regulatings
Lower limiting value, and B electrode voltage lower limiting values have not yet been reached in B electrode voltages, then B electrodes execute drop electrode action, and B electrodes execute drop electricity
Pole action after the completion of, system return detection obtain furnace of calcium carbide B electrode current values, and with the B electrode current setting values of systemic presupposition
It is compared, obtains B electrode currents difference as become smaller before relatively adjusting, process terminates；B electrode currents difference is obtained as before relatively adjusting
Become larger, then judge this adjustment mistake, carry out reversed lifting Electrode Operation, has executed end after reversed lifting Electrode Operation be somebody's turn to do into
Journey；Such as reach B electrode regulatings lower limiting value or B electrode voltages reach B electrode voltage lower limiting values, B electrodes are failure to actuate, and process terminates；
The method for carrying out logic judgment to B electrodes control output quantity specifically includes：
If B electrodes control output quantity is failure to actuate for electrode, process terminates；
If B electrodes control output quantity is to rise electrode action, then system further detects B electrode voltages；
When B electrode voltage upper limit values have not yet been reached in B electrode voltages, whether system detectio B electrodes reach the B electrode regulating upper limits
It is worth, if not up to B electrode regulatings upper limit value, then B electrodes execution rise electrode and act, after the completion of B electrodes execution liter electrode acts, is
System returns to detection and obtains furnace of calcium carbide B electrode current values, and is compared with the B electrode current setting values of systemic presupposition, obtains B electricity
As become smaller before relatively adjusting, process terminates electrode current difference；B electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Mistake is adjusted, reversed lifting Electrode Operation is carried out, terminates the process after having executed reversed lifting Electrode Operation；Such as reach B electrodes
Upper limit value is adjusted, B electrodes are failure to actuate, and whether the associated electrodes C electrodes that system continues to detect B electrodes reach the C electrode regulating upper limits
Value, such as not up to C electrode regulatings upper limit value, and C electrode voltage upper limit values have not yet been reached in C electrode voltages, then C electrodes, which execute, rises electricity
Pole acts, and after the completion of C electrodes execute liter electrode action, system returns to detection and obtains furnace of calcium carbide C electrode current values, and pre- with system
If C electrode current setting values be compared, obtain C electrode currents difference as relatively adjust before become smaller, process terminates；Obtain C electricity
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed liter as become larger before relatively adjusting
Terminate the process after drop Electrode Operation；Such as reach C electrode regulatings upper limit value or C electrode voltages reach C electrode voltage upper limit values, C
Electrode is failure to actuate, and process terminates；
When B electrode voltages reach B electrode voltage upper limit values, B electrodes only allow to do drop electrode action, and a liter electrode connection is forbidden in triggering
Lock；At this point, whether the associated electrodes C electrodes of system detectio B electrodes reach C electrode regulating upper limit values, such as not up to C electrode regulatings
Upper limit value, and C electrode voltage upper limit values have not yet been reached in C electrode voltages, then C electrodes, which execute, rises electrode action, and C electrodes, which execute, rises electricity
Pole action after the completion of, system return detection obtain furnace of calcium carbide C electrode current values, and with the C electrode current setting values of systemic presupposition
It is compared, obtains C electrode currents difference as become smaller before relatively adjusting, process terminates；C electrode currents difference is obtained as before relatively adjusting
Become larger, then judge this adjustment mistake, carry out reversed lifting Electrode Operation, has executed end after reversed lifting Electrode Operation be somebody's turn to do into
Journey；Such as reach C electrode regulatings upper limit value or C electrode voltages reach C electrode voltage upper limit values, C electrodes are failure to actuate, and process terminates；
If B electrodes control output quantity is drop electrode action, then system further detects B electrode voltages；
When B electrode voltage lower limiting values have not yet been reached in B electrode voltages, whether system detectio B electrodes reach B electrode regulating lower limits
It is worth, such as not up to B electrode regulatings lower limiting value, then B electrodes execution drop electrode action are after the completion of B electrodes execution drop electrode acts
System returns to detection and obtains furnace of calcium carbide B electrode current values, and is compared with the B electrode current setting values of systemic presupposition, obtains B electricity
As become smaller before relatively adjusting, process terminates electrode current difference；B electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Mistake is adjusted, reversed lifting Electrode Operation is carried out, terminates the process after having executed reversed lifting Electrode Operation；Such as reach B electrodes
Lower limiting value is adjusted, B electrodes are failure to actuate, and whether the associated electrodes C electrodes that system continues to detect B electrodes reach C electrode regulating lower limits
Value, such as not up to C electrode regulatings lower limiting value, and C electrode voltage lower limiting values have not yet been reached in C electrode voltages, then C electrodes execute drop electricity
Pole acts, and after the completion of C electrodes execute drop electrode action, system returns to detection and obtains furnace of calcium carbide C electrode current values, and pre- with system
If C electrode current setting values be compared, obtain C electrode currents difference as relatively adjust before become smaller, process terminates；Obtain C electricity
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed liter as become larger before relatively adjusting
Terminate the process after drop Electrode Operation；Such as reach C electrode regulatings lower limiting value or C electrode voltages reach C electrode voltage lower limiting values, C
Electrode is failure to actuate, and process terminates；
When B electrode voltages reach B electrode voltage lower limiting values, B electrodes only allow to do a liter electrode action, and triggering is forbidden dropping electrode connection
Lock；At this point, whether the associated electrodes C electrodes of system detectio B electrodes reach C electrode regulating lower limiting values, such as not up to C electrode regulatings
Lower limiting value, and C electrode voltage lower limiting values have not yet been reached in C electrode voltages, then C electrodes execute drop electrode action, and C electrodes execute drop electricity
Pole action after the completion of, system return detection obtain furnace of calcium carbide C electrode current values, and with the C electrode current setting values of systemic presupposition
It is compared, obtains C electrode currents difference as become smaller before relatively adjusting, process terminates；C electrode currents difference is obtained as before relatively adjusting
Become larger, then judge this adjustment mistake, carry out reversed lifting Electrode Operation, has executed end after reversed lifting Electrode Operation be somebody's turn to do into
Journey；Such as reach C electrode regulatings lower limiting value or C electrode voltages reach C electrode voltage lower limiting values, C electrodes are failure to actuate, and process terminates；
The method for carrying out logic judgment to C electrodes control output quantity specifically includes：
If C electrodes control output quantity is failure to actuate for electrode, process terminates；
If C electrodes control output quantity is to rise electrode action, then system further detects C electrode voltages；
When C electrode voltage upper limit values have not yet been reached in C electrode voltages, whether system detectio C electrodes reach the C electrode regulating upper limits
It is worth, if not up to C electrode regulatings upper limit value, then C electrodes execution rise electrode and act, after the completion of C electrodes execution liter electrode acts, is
System returns to detection and obtains furnace of calcium carbide C electrode current values, and is compared with the C electrode current setting values of systemic presupposition, obtains C electricity
As become smaller before relatively adjusting, process terminates electrode current difference；C electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Mistake is adjusted, reversed lifting Electrode Operation is carried out, terminates the process after having executed reversed lifting Electrode Operation；Such as reach C electrodes
Upper limit value is adjusted, C electrodes are failure to actuate, and whether the associated electrodes A electrodes that system continues to detect C electrodes reach the A electrode regulating upper limits
Value, such as not up to A electrode regulatings upper limit value, and A electrode voltage upper limit values have not yet been reached in A electrode voltages, then A electrodes, which execute, rises electricity
Pole acts, and after the completion of A electrodes execute liter electrode action, system returns to detection and obtains furnace of calcium carbide A electrode current values, and pre- with system
If A electrode current setting values be compared, obtain A electrode currents difference as relatively adjust before become smaller, process terminates；Obtain A electricity
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed liter as become larger before relatively adjusting
Terminate the process after drop Electrode Operation；Such as reach A electrode regulatings upper limit value or A electrode voltages reach A electrode voltage upper limit values, A
Electrode is failure to actuate, and process terminates；
When C electrode voltages reach C electrode voltage upper limit values, C electrodes only allow to do drop electrode action, and a liter electrode connection is forbidden in triggering
Lock；At this point, whether the associated electrodes A electrodes of system detectio C electrodes reach A electrode regulating upper limit values, such as not up to A electrode regulatings
Upper limit value, and A electrode voltage upper limit values have not yet been reached in A electrode voltages, then A electrodes, which execute, rises electrode action, and A electrodes, which execute, rises electricity
Pole action after the completion of, system return detection obtain furnace of calcium carbide A electrode current values, and with the A electrode current setting values of systemic presupposition
It is compared, obtains A electrode currents difference as become smaller before relatively adjusting, process terminates；A electrode currents difference is obtained as before relatively adjusting
Become larger, then judge this adjustment mistake, carry out reversed lifting Electrode Operation, has executed end after reversed lifting Electrode Operation be somebody's turn to do into
Journey；Such as reach A electrode regulatings upper limit value or A electrode voltages reach A electrode voltage upper limit values, A electrodes are failure to actuate, and process terminates；
If C electrodes control output quantity is drop electrode action, then system further detects C electrode voltages；
When C electrode voltage lower limiting values have not yet been reached in C electrode voltages, whether system detectio C electrodes reach C electrode regulating lower limits
It is worth, such as not up to C electrode regulatings lower limiting value, then C electrodes execution drop electrode action are after the completion of C electrodes execution drop electrode acts
System returns to detection and obtains furnace of calcium carbide C electrode current values, and is compared with the C electrode current setting values of systemic presupposition, obtains C electricity
As become smaller before relatively adjusting, process terminates electrode current difference；C electrode currents difference is obtained as become larger before relatively adjusting, then judges this
Mistake is adjusted, reversed lifting Electrode Operation is carried out, terminates the process after having executed reversed lifting Electrode Operation；Such as reach C electrodes
Lower limiting value is adjusted, C electrodes are failure to actuate, and whether the associated electrodes A electrodes that system continues to detect C electrodes reach A electrode regulating lower limits
Value, such as not up to A electrode regulatings lower limiting value, and A electrode voltage lower limiting values have not yet been reached in A electrode voltages, then A electrodes execute drop electricity
Pole acts, and after the completion of A electrodes execute drop electrode action, system returns to detection and obtains furnace of calcium carbide A electrode current values, and pre- with system
If A electrode current setting values be compared, obtain A electrode currents difference as relatively adjust before become smaller, process terminates；Obtain A electricity
Electrode current difference then judges this adjustment mistake, carries out reversed lifting Electrode Operation, executed reversed liter as become larger before relatively adjusting
Terminate the process after drop Electrode Operation；Such as reach A electrode regulatings lower limiting value or A electrode voltages reach A electrode voltage lower limiting values, A
Electrode is failure to actuate, and process terminates；
When C electrode voltages reach C electrode voltage lower limiting values, C electrodes only allow to do a liter electrode action, and triggering is forbidden dropping electrode connection
Lock；At this point, whether the associated electrodes A electrodes of system detectio C electrodes reach A electrode regulating lower limiting values, such as not up to A electrode regulatings
Lower limiting value, and A electrode voltage lower limiting values have not yet been reached in A electrode voltages, then A electrodes execute drop electrode action, and A electrodes execute drop electricity
Pole action after the completion of, system return detection obtain furnace of calcium carbide A electrode current values, and with the A electrode current setting values of systemic presupposition
It is compared, obtains A electrode currents difference as become smaller before relatively adjusting, process terminates；A electrode currents difference is obtained as before relatively adjusting
Become larger, then judge this adjustment mistake, carry out reversed lifting Electrode Operation, has executed end after reversed lifting Electrode Operation be somebody's turn to do into
Journey；Such as reach A electrode regulatings lower limiting value or A electrode voltages reach A electrode voltage lower limiting values, A electrodes are failure to actuate, and process terminates；
Two, adjustment period control strategy：
Into the furnace period is gone out, Electrode Operation can be carried out automatically into adjustment period by three electrodes of adjustment period control strategy pair after twenty minutes
It adjusts, adjustment period control strategy is identical as furnace period control strategy is gone out, and adjustment period A electrodes, B electrodes, the adjusting lower limiting value of C electrodes are equal
It is less than the adjusting lower limiting value of furnace period corresponding A electrodes, B electrodes, C electrodes；The adjusting upper limit of adjustment period A electrode, B electrodes, C electrodes
Value is all higher than out the adjusting upper limit value of furnace period corresponding A electrodes, B electrodes, C electrodes；
Three, stationary phase control strategy：
Electrode Operation can be carried out automatically into stationary phase by three electrodes of stationary phase control strategy pair after into 15 minutes adjustment periods
It adjusts, stationary phase control strategy is identical as furnace period control strategy is gone out, and by adjusting the operation of phase, the operating point of electrode has been approached flat
Weighing apparatus, the electrochemical reaction of furnace of calcium carbide enter the stable stage of reaction, and stationary phase A electrode, B electrodes, the adjusting lower limiting value of C electrodes are big
In the adjusting lower limiting value for going out furnace period corresponding A electrodes, B electrodes, C electrodes；The adjusting upper limit value of stationary phase A electrode, B electrodes, C electrodes
It is respectively less than out the adjusting upper limit value of furnace period corresponding A electrodes, B electrodes, C electrodes.
3. the accuracy control method of furnace of calcium carbide rise fall of electrodes according to claim 2, which is characterized in that the A electrodes tune
Section lower limiting value is that A electrode tips move down critical distance in a cycle, and the A electrode regulatings upper limit value is in a cycle
A electrode tips move up critical distance；The B electrode regulatings lower limiting value is that B electrode tips move down pole in a cycle
Range line is from the B electrode regulatings upper limit value is that B electrode tips move up critical distance in a cycle；The C electrode regulatings
Lower limiting value is that C electrode tips move down critical distance in a cycle, and the C electrode regulatings upper limit value is C in a cycle
Electrode tip moves up critical distance；The regulated quantity of A electrodes, B electrodes and C electrodes is that counter electrode holder position is upper and lower
The sum of displacement distance and Electrode Pressure Slipping Volume.
4. the accuracy control method of furnace of calcium carbide rise fall of electrodes according to claim 3, which is characterized in that work as electrode holde
When position reaches electrode holde position upper and lower limit, triggering is forbidden lifting electrode commands, can only be pressed by the lifting on operation console
Button is adjusted, and avoids causing electrode accident.
5. the accuracy control method of furnace of calcium carbide rise fall of electrodes according to claim 3, which is characterized in that default is going out
Furnace period cannot carry out Electrode Fluctuation, forbid pressing electrode interlocking into furnace period triggering is gone out, and terminate furnace period triggering to release and forbid pressing
Discharge electrode interlocks, therefore Electrode Fluctuation can only be carried out in adjustment period, stationary phase, avoided and pressed the phenomenon that electrode influences are come out of the stove.
6. the accuracy control method of furnace of calcium carbide rise fall of electrodes according to claim 2, which is characterized in that it is described go out the furnace period control
System strategy, the adjustment period control strategy and the stationary phase control strategy, which collapse including furnace of calcium carbide, expects judgment module, works as system
Detecting electrode electric current quickly reduces and when gradually ging up to initial value, is judged as that generation furnace of calcium carbide collapses material, system trigger is forbidden lifting
Electrode commands are judged as that the furnace of calcium carbide material that collapses terminates after electric current is basic steady, and system trigger releasing is forbidden lifting electrode commands,
Avoid the occurrence of the phenomenon that electrode holde position frequently adjusts when collapsing material.
7. the accuracy control method of furnace of calcium carbide rise fall of electrodes according to claim 2, which is characterized in that do not setting individually
It sets on the furnace of calcium carbide for burning transformer, burn-through operation is carried out before coming out of the stove, burning electric current can be with A electrodes or B electrode or C electrodes
Electrode current is superimposed, and when system carries out operation, is carried out current deviation calculating after the influence of arc burner electric current is rejected, is thus kept away
The influence that arc burner electric current controls electrode holde position is exempted from.
8. the accuracy control method of furnace of calcium carbide rise fall of electrodes according to claim 2, which is characterized in that A electrodes, B electrodes
It is 90KA with the high limit of the electrode currents of C electrodes setting, when A electrodes or the electrode current of B electrodes or C electrodes exceed 90KA,
Control system is sent out automatically proposes respective electrode instruction, and the electrode current is made to be not higher than 90KA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810196342.3A CN108444280B (en) | 2018-03-09 | 2018-03-09 | The accuracy control method of furnace of calcium carbide rise fall of electrodes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810196342.3A CN108444280B (en) | 2018-03-09 | 2018-03-09 | The accuracy control method of furnace of calcium carbide rise fall of electrodes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108444280A true CN108444280A (en) | 2018-08-24 |
| CN108444280B CN108444280B (en) | 2019-09-24 |
Family
ID=63194439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810196342.3A Active CN108444280B (en) | 2018-03-09 | 2018-03-09 | The accuracy control method of furnace of calcium carbide rise fall of electrodes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108444280B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737754A (en) * | 2019-03-06 | 2019-05-10 | 重庆大朗冶金新材料有限公司 | Mineral hot furnace automatic operation system |
| CN109757003A (en) * | 2019-03-06 | 2019-05-14 | 重庆大朗冶金新材料有限公司 | Mineral hot furnace autocontrol method |
| CN111847455A (en) * | 2020-08-06 | 2020-10-30 | 河北国超热力工程有限公司 | Calcium carbide furnace pressure intelligent operation control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10335058A (en) * | 1997-06-04 | 1998-12-18 | Fuji Electric Co Ltd | Arc furnace electrode lifting device with automatic sensitivity setting function |
| CN1873564A (en) * | 2006-06-15 | 2006-12-06 | 韶关市义太机电设备有限公司 | Method for aotomatic controlling rise fall of electrodes in mine hot stove |
| JP2007026825A (en) * | 2005-07-14 | 2007-02-01 | Jp Steel Plantech Co | Electrode lifting control device of ac arc furnace |
| CN106556249A (en) * | 2016-10-20 | 2017-04-05 | 北京动力源科技股份有限公司 | A kind of method of electrodes in mine hot stove electric arc adjustment, device and electronic equipment |
| CN107703977A (en) * | 2017-09-26 | 2018-02-16 | 东北大学秦皇岛分校 | The control method of electrometallurgy furnace control system and electrometallurgy stove electrode |
-
2018
- 2018-03-09 CN CN201810196342.3A patent/CN108444280B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10335058A (en) * | 1997-06-04 | 1998-12-18 | Fuji Electric Co Ltd | Arc furnace electrode lifting device with automatic sensitivity setting function |
| JP2007026825A (en) * | 2005-07-14 | 2007-02-01 | Jp Steel Plantech Co | Electrode lifting control device of ac arc furnace |
| CN1873564A (en) * | 2006-06-15 | 2006-12-06 | 韶关市义太机电设备有限公司 | Method for aotomatic controlling rise fall of electrodes in mine hot stove |
| CN106556249A (en) * | 2016-10-20 | 2017-04-05 | 北京动力源科技股份有限公司 | A kind of method of electrodes in mine hot stove electric arc adjustment, device and electronic equipment |
| CN107703977A (en) * | 2017-09-26 | 2018-02-16 | 东北大学秦皇岛分校 | The control method of electrometallurgy furnace control system and electrometallurgy stove electrode |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737754A (en) * | 2019-03-06 | 2019-05-10 | 重庆大朗冶金新材料有限公司 | Mineral hot furnace automatic operation system |
| CN109757003A (en) * | 2019-03-06 | 2019-05-14 | 重庆大朗冶金新材料有限公司 | Mineral hot furnace autocontrol method |
| CN109737754B (en) * | 2019-03-06 | 2024-04-09 | 重庆大朗冶金新材料有限公司 | Automatic operating system of submerged arc furnace |
| CN111847455A (en) * | 2020-08-06 | 2020-10-30 | 河北国超热力工程有限公司 | Calcium carbide furnace pressure intelligent operation control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108444280B (en) | 2019-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108444280B (en) | The accuracy control method of furnace of calcium carbide rise fall of electrodes | |
| CN103808159B (en) | Automatic control method used for submerged arc furnace electrode based on high-precision fuzzy control | |
| CN101167032B (en) | System and method for controlling electrical power across multiple furnaces using variable reactors | |
| CN110247562A (en) | A kind of power supply unit and method of supplying power to of direct current electric arc furnace | |
| CN107368125B (en) | A kind of blast furnace temperature control system and method based on CBR Yu the parallel mixed inference of RBR | |
| CN105093928A (en) | Intelligent sintering process state control method based on main exhauster frequency conversion regulation | |
| CN104065095A (en) | Auxiliary primary frequency modulation and optimization control method for battery energy storage systems | |
| CN102889944B (en) | Calcium carbide production furnace temperature monitoring method | |
| CN102692124B (en) | Automatic control method for improving uniformity of temperature of sleeve kiln | |
| CN101968319B (en) | Automatic power control system of electric furnace | |
| CN113745707B (en) | Battery temperature control system and method | |
| CN106766905B (en) | Control the method and device of electric parameter balance in mineral hot furnace | |
| CN101968318B (en) | Method for automatically controlling power of electric furnace | |
| CN112438005A (en) | Method and device for charging an electrical energy store | |
| CN108445745A (en) | A kind of electrode lift control method of ore and system based on neural network decoupling | |
| CN109757003A (en) | Mineral hot furnace autocontrol method | |
| CN104267600B (en) | Ladle refining furnace Electrode Computer Control System and control method thereof | |
| CN108132372A (en) | A kind of low-voltage platform area stealing suspicious user recognition methods with tracing function | |
| CN104953592B (en) | The load optimal distribution method of multi fuel mixed combustion generating set | |
| CN102297584A (en) | Electrode control system for submerged arc furnace with position inner ring and current outer ring | |
| Ghiormez et al. | Electric arc current control for an electric arc furnace based on fuzzy logic | |
| CN116154808A (en) | Method for establishing frequency response model of electric smelting magnesium furnace based on electrode adjustment | |
| CN106931796A (en) | Based on the electrodes in mine hot stove control method for calculating electrode pay(useful) load resistance in stove | |
| CN205693371U (en) | Be suitable to the furnace power stabilizing control system that micro-capacitance sensor runs | |
| CN115823890A (en) | Automatic electrode control method, equipment and system for industrial silicon furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |