CN105499549A - Control system and control method for automatic quantitative casting of copper anode plate - Google Patents
Control system and control method for automatic quantitative casting of copper anode plate Download PDFInfo
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- CN105499549A CN105499549A CN201510926971.3A CN201510926971A CN105499549A CN 105499549 A CN105499549 A CN 105499549A CN 201510926971 A CN201510926971 A CN 201510926971A CN 105499549 A CN105499549 A CN 105499549A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D39/00—Equipment for supplying molten metal in rations
- B22D39/04—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by weight
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
- B22D25/04—Casting metal electric battery plates or the like
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Abstract
The invention discloses a control system and a control method for automatic quantitative casting of a copper anode plate, comprising a PLC, wherein an approach switch is connected with the input terminal of the PLC, a weighing sensor is connected with a weighing module, the weighing module is used for carrying out signal conditioning and analog-digital conversion on a weighing signal and then sending to the PLC, the output terminal of the weighing module is also connected with an electromagnetic proportional valve used for adjusting the oil inlet quantity of an oil inlet pipe of a starting hydraulic cylinder of a casting ladle and a tundish; the PLC controls the operation of a disk driving motor by a frequency converter; the PLC is connected with an electromagnetic directional valve arranged in an oil inlet pipeline of the tundish and is also connected with a touch screen; and the PLC is used for calculating cast molten copper quantity according to the weight of the casting ladle collected by the weighing sensor and generating a speed control signal to act on the electromagnetic proportional valve, so that the casting speed follows a set track. Therefore, casting efficiency and quality are improved, and the cast copper anode plate has relatively high outline standard.
Description
Technical field
The present invention relates to quantitative casting technology field, particularly relate to a kind of copper anode plate automatic ration casting control system and control method.
Background technology
Along with the fast development of China's economic, China's GDP total amount reach global deputy while, China refined copper output speedup higher, copper market comsupton steady growth, publish data that International Copper Study Group knits (ICSG) shows, and China Copper tenor output is Main Yield-increasing district of the world.Under this environmental background, raise during copper processing is steady, have stimulated domestic large-scale cupper smelting and step up to improve production capacity, eliminate the Copper making technology fallen behind, introduce advanced smelting technique and equipment, status of gaining the initiative in the competition of future market.Copper anode plate is that thick copper smelting electrorefining produces the raw material of fine copper, obtain the tough cathode of high-quality, except the various impurity content of copper anode plate itself can not too high except, copper anode plate also will have the profile of certain specification, this requires the consistency of thickness of every block positive plate, smooth surface, geometric identity, to ensure when positive plate electrorefining, same die opening can be reduced, improve current density, reduce short circuit ratio and residual anode ratio, be convenient to realize interlock operation simultaneously, meet the requirement of post-order process.Positive plate casting machine obtains the raw-material casting equipment of copper electrolyzing refining just, researches and develops efficient, energy-conservation, that automaticity is high copper anode plate constant casting equipment and has great significance.
At present, copper anode plate disk quantitative casting machine economizing on resources, reduce labor cost, improve production capacity, improve in product quality etc. and have very large advantage, the problems such as but automatic ration casting control technology is not also very ripe, still faces that casting cycle weight precision controlling is lower, the stability of a system is poor, casting efficiency is low and reply working conditions change self adaptation, self-adjusting ability be lower.
Summary of the invention
Object of the present invention is exactly to solve the problem, and provides a kind of copper anode plate automatic ration casting control system and control method, improves casting efficiency and quality, make to water the copper anode plate cast out and possess higher profile specification.
To achieve these goals, the present invention adopts following technical scheme:
A kind of copper anode plate automatic ration casting control system, comprise PLC, the proximity switch being arranged on disk middle cavity connects the input of described PLC;
The LOAD CELLS be arranged on casting ladle base is connected with Weighing module, Weighing module sends to PLC after carrying out signal condition and analog-to-digital conversion to weighing-up wave, and the output of described Weighing module is also connected with regulating the electromagnetic proportional valve of casting ladle and tundish primer fluid cylinder pressure oil inlet pipe oil inlet quantity size;
Described PLC is by the rotation of Frequency Converter Control disk drive motors;
Described PLC is connected with the solenoid directional control valve be arranged in tundish inflow pipeline;
Described PLC is connected with touch-screen;
PLC calculates according to the weighing scale of the casting ladle of LOAD CELLS collection and waters the copper water yield and formation speed control signal, acts on electromagnetic proportional valve, makes casting rate follow the track of setting.
Described proximity switch comprises limit switch and stops proximity switch.
Described PLC is also connected with control button.
The output connection of described PLC is used to indicate the indicator lamp that tundish return puts in place, casting ladle return puts in place and disk puts in place.
Described touch-screen is connected by RS485 interface communication with PLC, can be monitored the duty of copper water casting by touch-screen, also can arrange the parameter of PLC to adjust copper water casting duty by touch-screen amendment.
Adopt the control method of described a kind of copper anode plate automatic ration casting control system, comprise,
Copper water under molten condition is after chute flows into tundish, arrive PLC after setting weight by control solenoid directional control valve, hydraulic oil to be entered in tundish hydraulic cylinder tundish is started, copper water flows in casting ladle, LOAD CELLS under casting ladle base converts copper water compression weight value to voltage signal and is delivered in Weighing module, and voltage signal carries out nursing one's health by Weighing module, be delivered to PLC for calling process after filtering and analog-to-digital conversion; When the copper water weight in casting ladle reaches setting value, PLC makes tundish fall after rise by controlling solenoid directional control valve switching solenoid valve position;
After waiting for that disk operation puts in place, proximity switch passes to PLC signal, thus forms casting ladle casting condition, and PLC controls the casting rate of casting ladle to electromagnetic proportional valve by transmission setting value voltage;
During positive plate casting, tundish topples over copper liquid to casting ladle, and the amount of toppling over is detected by LOAD CELLS, when reaching setting value, stopping is toppled over, after casting disk puts in place, casting ladle starts to topple over copper liquid, and PLC detects according to LOAD CELLS simultaneously, the weighing-up wave gathered is analyzed, control the casting rate of casting ladle, form the feedback regulation in casting rate, make casting rate according to the trail change of setting.
Obtain determining that the method for moment point t1 casting rate is, with the gravimetric value in t1 moment for starting point, comprise the gravimetric value in t1 moment, start the gravimetric value of continuous acquisition multiple moment point thereafter, the value using least square method to calculate the gravimetric value of the multiple moment point collected is as the velocity amplitude of this moment t1.
The control that what the control of casting rate reflected is to output voltage, the track of described setting comprises multiple curved section, described curved section has startup section, waits for copper section, accelerating sections, average rate section, braking section and packet receiving section, is switched between each casting curve by quantity of state.
The mode of choosing of quantity of state is:
Casting ladle, after startup section is carried out and kept 1-4 second, namely enters and waits for copper section;
Wait for and switching with the comparative result of setting weight and actual weight between copper section, accelerating sections, at the uniform velocity section, braking section and packet receiving section, after the actual weight of each section is more than or equal to setting weight, namely enter into next curved section;
Switching between braking section and packet receiving section with packet receiving point weight for switching mark.
The control voltage starting section electromagnetic proportional valve, first with constant increase of advancing the speed, keeps maximum constant after being increased to the maximum of setting, reaches and wait for copper section after the delay adjustments time;
Wait for that the control voltage of copper section electromagnetic proportional valve is successively decreased with constant rate of speed, after being decremented to setting value, arrive copper section;
The control voltage of copper section electromagnetic proportional valve keeps setting value constant, after setting time delay, arrive accelerating sections;
Accelerating sections reduces gradually to the magnitude of voltage of electromagnetic proportional valve, and model formation is exponential function e^x+f, enters at the uniform velocity section after arriving setting value;
At the uniform velocity section exports constant voltage to proportional servo valve, and now curve model formula is steady state value g, after setting time delay, arrive braking section;
The voltage that braking section system exports to electromagnetic proportional valve is more and more less, to catch and to determine casting ladle packet receiving point, curve model formula is exponential function h^x+I, increases again, reach packet receiving section after being increased to setting after arriving setting value with constant rate of speed;
The voltage that packet receiving section exports to electromagnetic proportional valve is reduced to 0 rapidly with constant speed, makes the outflow that copper water is as far as possible few, reduces casting error.
Beneficial effect of the present invention:
Automaticity is high, operation accurately, fast response time and stable, adding FEEDBACK CONTROL can make casting cycle more accurate, improves the flexibility of casting control system, by the motion of PLC controlling organization, decrease the use of electric components, enough make the simplicity of design of control system internal structure, decrease the workload of design, wiring is simple, maintenance is easy, and the very big result of use of raising system and the casting quality of product.
Accompanying drawing explanation
Fig. 1 is a kind of copper anode plate automatic ration casting of the present invention Control system architecture schematic diagram.
Fig. 2 is the main program block diagram of a kind of copper anode plate automatic ration casting of the present invention control system.
Fig. 3 is a kind of copper anode plate automatic ration casting of the present invention control system manual mode program flow diagram.
Fig. 4 is a kind of copper anode plate automatic ration casting of the present invention control system functional test program flow diagram.
Fig. 5 is a kind of copper anode plate automatic ration casting of the present invention control system automatic mode program flow diagram.
Fig. 6 is a kind of copper anode plate automatic ration casting of the present invention control system electromagnetic proportional valve feedback regulation flow chart.
Fig. 7 is that a kind of copper anode plate automatic ration casting of the present invention control system velocity feedback regulates flow chart.
Fig. 8 is a kind of copper anode plate automatic ration casting of the present invention control system weight feedback regulation flow chart.
Fig. 9 is a kind of copper anode plate automatic ration casting of the present invention control system 6 line sensor wiring diagram.
Figure 10 is a kind of copper anode plate automatic ration casting control system Weighing module of the present invention and computer communication wiring diagram.
Figure 11 is a kind of copper anode plate automatic ration casting of the present invention control system Weighing module Weight acquisition point schematic diagram.
Figure 12 is a kind of copper anode plate automatic ration casting of the present invention control system casting curve figure.
Wherein, 1PLC controller, 2 touch-screens, 3 Weighing modules, 4 LOAD CELLSs, 5 electromagnetic proportional valves, 6 input blocks, 7 proximity switches, 8 control buttons, 9 frequency converters, 10 motors, 11 output units, 12 solenoid directional control valves, 13 indicator lamps.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, a kind of copper anode plate automatic ration casting control system, comprise PLC 1, the proximity switch 7 being arranged on disk middle cavity connects the input of PLC 1 by input block 6; The LOAD CELLS 4 be arranged on casting ladle base is connected with Weighing module 3, send to PLC 1 after Weighing module 3 pairs of weighing-up waves carry out signal condition and analog-to-digital conversion, the output of Weighing module 3 is also connected with regulating the electromagnetic proportional valve 5 of casting ladle and tundish primer fluid cylinder pressure oil inlet pipe oil inlet quantity size; PLC 1 controls the rotation of disk drive motors 10 by frequency converter 9; PLC 1 is connected with the solenoid directional control valve 12 be arranged in tundish inflow pipeline; PLC 1 is connected with touch-screen 2; The weighing scale of the casting ladle that PLC 1 gathers according to LOAD CELLS 4 calculates and waters the copper water yield and formation speed control signal, acts on electromagnetic proportional valve 5, makes casting rate follow the track of setting.
Proximity switch 7 comprises limit switch and stops proximity switch.PLC 1 is also connected with control button 8 by input block 6.The output connection of PLC 1 is used to indicate the indicator lamp 13 that tundish return puts in place, casting ladle return puts in place and disk puts in place.Touch-screen 2 is connected by RS485 interface communication with PLC 1, can be monitored the duty of copper water casting by touch-screen 2, also can arrange the parameter of PLC 1 to adjust copper water casting duty by touch-screen 2 amendment.
In the present embodiment, PLC 1 connects solenoid directional control valve 12 and indicator lamp 13 by output unit 11.
It is inner that PLC 1 is arranged on operation cabinet, that select is SIEMENSS7-300, Siemens 300 series of PLC modular construction, possesses high speed instruction arithmetic speed, volume is little, the CPU speed of service is fast, memory is well-to-do, soft element scope is enriched, and can carry out expansion input, exports and communication by plug-in mounting expansion module.
Touch-screen 2 is embedded to be arranged on operation cabinet panel, be connected with PLC 1 communication, wherein, touch-screen 2 with the communication modes of PLC 1 is: interface type RS232, the connection mode of connection is screen (female) 6,9,5---PLC (male) 3,2,9,4 and 5 short circuit; Simultaneously by the duty of configuration Soft-ware programme monitoring Rotating caster, also the running parameter that PLC 1 adjusts Rotating caster can be set by touch-screen 2.What touch-screen 2 was selected is the embedded integrated touch-screen 2 of the Kunlun on-state TPC1061Ti type, by MCGS configuration software compiling man-machine interface.
Weighing module 3, that select is the functional block SIWAREXFTA of SIMATICS7-300, can directly be integrated on S7-300 backplane bus.The installation of the Weighing module 3 of 80 millimeters, cable laying requires extremely low, because have employed DIN guide assembly and snap-on technology.Standard 40 pin front connector is used for connecting LOAD CELLS 4, RS485 serial line interface, modulating output and digital IO, and 9 pin Sub-D plugs are used for connecting PC (RS232).SIWAREXFTA, in SIMATIC, means and weighing technology can be ensured to be fully integratible in automated system.
LOAD CELLS 4, adopt press type sensor, when the elastomer of LOAD CELLS 4 is subject to the power from casting ladle gravity direction, there is corresponding micro-deformation in elastomer, and each bridge resistance, being now pasted onto the resistance strain gage on elastomer produces corresponding change in resistance.By resistance bridge principle, now resistance strain gage two ends add constant driving voltage, then the change of casting ladle weight will be embodied in the voltage difference at foil gauge two ends, can detect its stressed size thus thus record the weight of casting ladle.
Electromagnetic proportional valve 5, in valve, proportion electro-magnet input voltage signal produces corresponding action, and make operating valve spool produce displacement, port size changes, and complete with input voltage proportional pressure with this, element that flow exports.Spool position can feed back with machinery, hydraulic pressure or electric form.Electricity hydraulic proportion valve composition uses electrically and computer controls electrohydraulic system, and control accuracy is high, installs and uses flexibly and contamination resistance is strong.
Proximity switch 7 is arranged on tundish, the return position of casting ladle and rotary disk internal diameter successively and determines in the mechanism of position.
Control button 8 is arranged on switch board guidance panel, as the digital input signals of PLC 1.
Frequency converter 9, utilizes the on-off action of power semiconductor device that power frequency supply is transformed to another frequency, realizes the function of the soft start to AC induction motor, frequency control, raising running accuracy, change power factor, overcurrent/overvoltage/overload protection.
Solenoid directional control valve 12 is arranged in tundish inflow pipeline, and can control its switch by PLC 1.
A control method for copper anode plate automatic ration casting control system, comprises,
As shown in Fig. 5 automatic mode program flow diagram, after system starts, by controlling pushbutton enable cashier's office in a shop in operating room and stopping automatic casting.Copper water under molten condition is after chute flows into tundish, to arrive after constant weight PLC 1 hydraulic oil to be entered control tundish hydraulic cylinder tundish is started by controlling solenoid directional control valve 12, copper water flows in casting ladle, LOAD CELLS 4 under casting ladle base in weighing device converts copper water compression weight value to voltage signal and is delivered in the Weighing module 3 of PLC 1, is nursed one's health by voltage signal, filtering carry out analog-to-digital conversion and be delivered to Upper system for PLC 1CPU and call process; When the copper water weight in casting ladle reaches setting value, PLC 1 controls solenoid directional control valve 12 switching solenoid valve position by output unit 11 makes tundish fall after rise;
After waiting for that disk operation puts in place, proximity switch 7 can pass to PLC 1 signal by input block 6, thus form casting ladle casting condition, PLC 1 controls the casting rate of casting ladle to electromagnetic proportional valve 5 by transmission particular value voltage, in valve, proportion electro-magnet input voltage signal produces corresponding action, operating valve spool produces displacement, and port size changes, and completes the proportional flow with input voltage with this and export.Spool position can feed back, as Fig. 6 electromagnetic proportional valve feedback regulation flow chart with machinery, hydraulic pressure or electric form.Electricity hydraulic proportion valve composition uses electrically and computer controls electrohydraulic system, and control accuracy is high, installs and uses flexibly and contamination resistance is strong;
During positive plate casting, tundish topples over copper liquid to casting ladle, and the amount of toppling over is detected, when reaching setting value by casting ladle LOAD CELLS 4, stopping is toppled over, after casting disk puts in place, casting ladle starts to topple over copper liquid, and PLC 1 detects according to LOAD CELLS 4 simultaneously, the weighing-up wave gathered is analyzed, what control casting ladle topples over speed, forms the feedback regulation in casting rate, as Fig. 7 casting rate feedback regulation flow chart; Copper water weight in LOAD CELLS 4 Real-Time Monitoring casting ladle, and by weight signal Real-time Feedback thus the feedback regulation formed in copper water casting weight, and the fast return when the amount of toppling over reaches the copper water of packet receiving weight, thus reach the object realizing the casting of copper anode plate accurate quantification, as Fig. 8 copper water casting weight feedback regulation flow chart.
PLC waters the copper water yield according to calculating the sampled value of casting ladle weight, produces speed control signal, acts on the electro-hydraulic servo control valve in casting hydraulic circuit, makes casting rate follow given track.The generation of the signal of speeds control, first according to the Weight acquisition value of Weighing module 3 pairs of casting ladles, current casting rate to be calculated, for the calculating of casting rate, Weighing module 3 gathers the point of 5 or 10 casting ladle weight, uses least square method to calculate the velocity amplitude in this moment.Gather the casting rate of this point of t1 sometime, with the gravimetric value in t1 moment for starting point (comprising the gravimetric value in t1 moment) starts the gravimetric value of continuous acquisition 5 (or 10) individual moment point thereafter, use the value that calculates of least square method as the velocity amplitude of this moment t1, as shown in Figure 11 Weight acquisition point schematic diagram.
The setting of given trace, this curve coordinates with casting scale weighing and sensing signal, by casting Mathematical Modeling, the casting scale weighing-up wave gathered is analyzed, through PLC 1, suitable voltage is exported to control the precise movement of casting ladle hydraulic cylinder proportioning valve to each stage action of casting scale.Output voltage comprises 6 stages: start section, wait for copper section, accelerating sections, average rate section, braking section, packet receiving section, if Figure 12 is voltage (i.e. casting rate) curve map.
Casting ladle, in the process of toppling over copper water, is switched by quantity of state between each casting curve, and the mode of quantity of state is:
1) casting ladle is after startup section is carried out and kept 2 seconds, namely enters and waits for copper section;
2) wait for and switching with the comparative result of setting weight and actual weight between copper section, accelerating sections, at the uniform velocity section, braking section, packet receiving section, after the actual weight of each section is more than or equal to setting weight, namely enter into next curved section;
3) switching between braking section and packet receiving section with packet receiving point weight for switching mark.
The control voltage starting section electromagnetic proportional valve, first with constant increase of advancing the speed, keeps maximum constant after being increased to the maximum of setting, reaches and wait for copper section after the delay adjustments time;
Wait for that the control voltage of copper section electromagnetic proportional valve is successively decreased with constant rate of speed, after being decremented to setting value, arrive copper section;
The control voltage of copper section electromagnetic proportional valve keeps setting value constant, after setting time delay, arrive accelerating sections;
Accelerating sections reduces gradually to the magnitude of voltage of electromagnetic proportional valve, and model formation is exponential function e^x+f, and because in casting ladle, copper water liquid level broadens, copper water still flows out fast, enters at the uniform velocity section after arriving setting value;
At the uniform velocity section exports less constant voltage to proportional servo valve, and now curve model formula is steady state value g, after setting time delay, arrive braking section;
The voltage that braking section system exports to electromagnetic proportional valve is more and more less, to catch and to determine casting ladle packet receiving point, curve model formula is exponential function h^x+I, increases again, reach packet receiving section after being increased to setting after arriving setting value with constant rate of speed;
The voltage that packet receiving section exports to electromagnetic proportional valve is reduced to 0 rapidly with constant speed, makes the outflow that copper water is as far as possible few, reduces casting error.
This control system can also comprise and runs on MANUAL CONTROL mode and test function pattern except comprising above automatic control.
MANUAL CONTROL mode: as shown in Fig. 3 manual mode flow chart, rotary switch is chosen manual mode after starting by system.By control in operating room gauge tap 8 cashier's office in a shop by input block 6 send a signal to PLC control tundish topple over and fall after rise, the startup casting of casting ladle and falling after rise, the actions such as casting multigraph press forward and reverse.When commissioning device and switch to manual mode when automatic mode breaks down and operate.
Function testing mode: as shown in Fig. 4 test function model process figure, when rotary knob being chosen test function pattern, equipment will start tundish, casting ladle successively and run disk under immunization with gD DNA vaccine, complete the action of casting flow process, the function of this module is before the casting of copper water starts, dry run is carried out to the links of whole casting system, potential system mistake and mechanical breakdown can be detected in advance.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (10)
1. a copper anode plate automatic ration casting control system, it is characterized in that, comprise PLC, the proximity switch being arranged on disk middle cavity connects the input of described PLC;
The LOAD CELLS be arranged on casting ladle base is connected with Weighing module, Weighing module sends to PLC after carrying out signal condition and analog-to-digital conversion to weighing-up wave, and the output of described Weighing module is also connected with regulating the electromagnetic proportional valve of casting ladle and tundish primer fluid cylinder pressure oil inlet pipe oil inlet quantity size;
Described PLC is by the rotation of Frequency Converter Control disk drive motors;
Described PLC is connected with the solenoid directional control valve be arranged in tundish inflow pipeline;
Described PLC is connected with touch-screen;
PLC calculates according to the weighing scale of the casting ladle of LOAD CELLS collection and waters the copper water yield and formation speed control signal, acts on electromagnetic proportional valve, makes casting rate follow the track of setting.
2. a kind of copper anode plate automatic ration casting control system as claimed in claim 1, it is characterized in that, described proximity switch comprises limit switch and stops proximity switch.
3. a kind of copper anode plate automatic ration casting control system as claimed in claim 1 or 2, it is characterized in that, described PLC is also connected with control button.
4. a kind of copper anode plate automatic ration casting control system as claimed in claim 1, is characterized in that, the output of described PLC connects and is used to indicate the indicator lamp that tundish return puts in place, casting ladle return puts in place and disk puts in place.
5. a kind of copper anode plate automatic ration casting control system as claimed in claim 1, it is characterized in that, described touch-screen is connected by RS485 interface communication with PLC, the duty of copper water casting can be monitored by touch-screen, also by touch-screen amendment, the parameter of PLC can be set to adjust copper water casting duty.
6. adopt the control method of a kind of copper anode plate automatic ration casting control system described in claim 1, it is characterized in that, comprise,
Copper water under molten condition is after chute flows into tundish, arrive PLC after setting weight by control solenoid directional control valve, hydraulic oil to be entered in tundish hydraulic cylinder tundish is started, copper water flows in casting ladle, LOAD CELLS under casting ladle base converts copper water compression weight value to voltage signal and is delivered in Weighing module, and voltage signal carries out nursing one's health by Weighing module, be delivered to PLC for calling process after filtering and analog-to-digital conversion; When the copper water weight in casting ladle reaches setting value, PLC makes tundish fall after rise by controlling solenoid directional control valve switching solenoid valve position;
After waiting for that disk operation puts in place, proximity switch passes to PLC signal, thus forms casting ladle casting condition, and PLC controls the casting rate of casting ladle to electromagnetic proportional valve by transmission setting value voltage;
During positive plate casting, tundish topples over copper liquid to casting ladle, and the amount of toppling over is detected by LOAD CELLS, when reaching setting value, stopping is toppled over, after casting disk puts in place, casting ladle starts to topple over copper liquid, and PLC detects according to LOAD CELLS simultaneously, the weighing-up wave gathered is analyzed, control the casting rate of casting ladle, form the feedback regulation in casting rate, make casting rate according to the trail change of setting.
7. the control method of a kind of copper anode plate automatic ration casting control system as claimed in claim 6, it is characterized in that, obtain determining that the method for moment point t1 casting rate is, with the gravimetric value in t1 moment for starting point, comprise the gravimetric value in t1 moment, start the gravimetric value of continuous acquisition multiple moment point thereafter, the value using least square method to calculate the gravimetric value of the multiple moment point collected is as the velocity amplitude of this moment t1.
8. the control method of a kind of copper anode plate automatic ration casting control system as claimed in claim 6, it is characterized in that, the control that what the control of casting rate reflected is to output voltage, the track of described setting comprises multiple curved section, described curved section has startup section, waits for copper section, accelerating sections, average rate section, braking section and packet receiving section, is switched between each casting curve by quantity of state.
9. the control method of a kind of copper anode plate automatic ration casting control system as claimed in claim 8, it is characterized in that, the mode of choosing of quantity of state is:
Casting ladle, after startup section is carried out and kept 1-4 second, namely enters and waits for copper section;
Wait for and switching with the comparative result of setting weight and actual weight between copper section, accelerating sections, at the uniform velocity section, braking section and packet receiving section, after the actual weight of each section is more than or equal to setting weight, namely enter into next curved section;
Switching between braking section and packet receiving section with packet receiving point weight for switching mark.
10. the control method of a kind of copper anode plate automatic ration casting control system as claimed in claim 9, is characterized in that,
The control voltage starting section electromagnetic proportional valve, first with constant increase of advancing the speed, keeps maximum constant after being increased to the maximum of setting, reaches and wait for copper section after the delay adjustments time;
Wait for that the control voltage of copper section electromagnetic proportional valve is successively decreased with constant rate of speed, after being decremented to setting value, arrive copper section;
The control voltage of copper section electromagnetic proportional valve keeps setting value constant, after setting time delay, arrive accelerating sections;
Accelerating sections reduces gradually to the magnitude of voltage of electromagnetic proportional valve, and model formation is exponential function e^x+f, enters at the uniform velocity section after arriving setting value;
At the uniform velocity section exports constant voltage to proportional servo valve, and now curve model formula is steady state value g, after setting time delay, arrive braking section;
The voltage that braking section system exports to electromagnetic proportional valve is more and more less, to catch and to determine casting ladle packet receiving point, curve model formula is exponential function h^x+I, increases again, reach packet receiving section after being increased to setting after arriving setting value with constant rate of speed;
The voltage that packet receiving section exports to electromagnetic proportional valve is reduced to 0 rapidly with constant speed.
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| CN108637230A (en) * | 2018-04-23 | 2018-10-12 | 中南大学 | A kind of copper disc casting control method and device |
| CN108672691A (en) * | 2018-07-19 | 2018-10-19 | 济南大学 | Positive plate casting intermediate Packet driven and weighing structure and its quantitative compensation process |
| CN110842182A (en) * | 2019-11-29 | 2020-02-28 | 金隆铜业有限公司 | Preparation device of large copper mold |
| CN114042899A (en) * | 2021-11-08 | 2022-02-15 | 内蒙古兴安银铅冶炼有限公司 | Large polar plate production process |
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| CN108637230A (en) * | 2018-04-23 | 2018-10-12 | 中南大学 | A kind of copper disc casting control method and device |
| CN108637230B (en) * | 2018-04-23 | 2019-08-23 | 中南大学 | A kind of copper disc casting control method and device |
| CN108672691A (en) * | 2018-07-19 | 2018-10-19 | 济南大学 | Positive plate casting intermediate Packet driven and weighing structure and its quantitative compensation process |
| CN108672691B (en) * | 2018-07-19 | 2023-05-23 | 济南大学 | Tundish driving and weighing structure for anode plate casting and quantitative supplementing method thereof |
| CN110842182A (en) * | 2019-11-29 | 2020-02-28 | 金隆铜业有限公司 | Preparation device of large copper mold |
| CN114042899A (en) * | 2021-11-08 | 2022-02-15 | 内蒙古兴安银铅冶炼有限公司 | Large polar plate production process |
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