CN103469256B - The automation system of control electrolytic furnace temperature, rise fall of electrodes, input and output material and method - Google Patents
The automation system of control electrolytic furnace temperature, rise fall of electrodes, input and output material and method Download PDFInfo
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- CN103469256B CN103469256B CN201310469766.XA CN201310469766A CN103469256B CN 103469256 B CN103469256 B CN 103469256B CN 201310469766 A CN201310469766 A CN 201310469766A CN 103469256 B CN103469256 B CN 103469256B
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Abstract
The present invention relates to a kind of Comprehensive Control electrolytic furnace temperature, rise fall of electrodes, the automation system of input and output material and method, system comprises PLC, industrial computer, supervisory control desk, temperature controlling system, Electrode Lift Control System and input and output material Controlling System; Industrial computer and supervisory control desk are all mutual with PLC, and PLC is provided with the control module of each Controlling System as master control, and has corresponding sequence of control; Automated operator is provided with in industrial computer; Supervisory control desk has various required manual manipulation button.Take the method automatically controlled can control electrolytic furnace and thrust-augmenting nozzle temperature, when temperature adopts thermopair temperature controller lower than when 900 DEG C, adopt infrared temperature control device when reaching 900 DEG C, rise to 1800 DEG C, automatically run insulation program; Electrode Lift Control System adopts automatic liquid cylinder pressure to control, and input and output material Controlling System adopts pneumatic control.The present invention can realize automatically and Non-follow control, greatly facilitates controllers, has very large value for the traditional Controlling System of improvement.
Description
Technical field
The invention belongs to electrolytic furnace technical field, particularly about the automation system of a kind of Comprehensive Control electrolytic furnace temperature, rise fall of electrodes, input and output material.
Background technology
The premium properties such as titanium or titanium alloy has that light specific gravity, specific tenacity are high, creep-resistant property is good, corrosion-resistant under high temperature, therefore extensively structured material is used as in aerospace, metallurgy, automobile and other industries, simultaneously can also as functional materials as hydrogen storage material, shape memory alloy material etc.
Current electrolytic reduction direct production metal titanium becomes the study hotspot of titanium smelting technology.Just because of this, also very high to the requirement of the electrolyzer adopted.Produce compact metal titanium with large high-temperature fused salt electrolysis stove, corollary system is more, has Heating Zone Temperature Controlling System, thrust-augmenting nozzle temperature controlling system, the Controlling System that performs an action, cooling control system etc.Any one system malfunctions, all can cause High Temperature Furnaces Heating Apparatus work abnormal, causes to produce to stop, and therefore just seems of crucial importance to the Digital Control of High Temperature Furnaces Heating Apparatus corollary system.
Summary of the invention
For the automation issues that high-temperature electrolysis stove corollary system controls, the present invention proposes the automation system of a kind of Comprehensive Control electrolytic furnace temperature, rise fall of electrodes, input and output material, this system can by the automation control system of configuration, arrange other each system coordination work in reasonable and orderly manner, make it have effect of efficient electrolysis.
For achieving the above object, the technical solution used in the present invention is: the automation system of a kind of Comprehensive Control electrolytic furnace temperature, rise fall of electrodes, input and output material, is characterized in that: comprise PLC, industrial computer, supervisory control desk, temperature controlling system, Electrode Lift Control System and input and output material Controlling System;
Described industrial computer and supervisory control desk are all mutual with PLC, be provided with the control module of each Controlling System, and be implanted with corresponding sequence of control in PLC; Automated operator is provided with in described industrial computer; Described supervisory control desk has various required manual manipulation button;
Heating system has electrolytic furnace heating zone and thrust-augmenting nozzle heating zone, adopt same configuration and type of heating, the i.e. a set of temperature control system of each configuration and heating element, every suit temperature controlling system, comprises thermopair temperature controller, infrared temperature control device, low temperature thermocouple temperature measurer, high-temperature infrared ray temperature measurer, switchboard, transformer; Described temperature controller is connected with industrial computer 1 and PLC2 on the one hand, is connected on the other hand with switchboard; Described switchboard is connected with heating element by transformer, when temperature adopts thermopair temperature controller lower than when 900 DEG C, adopts infrared temperature control device, rises to 1800 DEG C, automatically run insulation program when reaching 900 DEG C;
Described Electrode Lift Control System, comprise a hydrauliccontroller controlled by PLC, described hydrauliccontroller control linkage Hydraulic Station and electrode holding card device, electrode lifting device, described Hydraulic Station comprises pressure monitor, temperature monitor, the leve monitor of main pump, recycle pump, well heater and monitoring Hydraulic Station state, and described electrode holding card device and electrode lifting device are all provide power by main pump;
Described feeding control system, comprise the charging magnetic valve controlled by PLC, described charging magnetic valve is arranged on charging caliber;
Described discharging Controlling System, comprise a pneumatic controller controlled by PLC, described pneumatic controller control linkage air pump, enter boat fire door valve, go out boat fire door valve, blowing magnetic valve and limit sensors, enter boat fire door valve described in described air pump control linkage, go out boat fire door valve and material boat delivery device, described material boat delivery device is a pusher being arranged on guide rail, described delivery device binder boat, the described position of limit sensors induction material residing for boat.
Further,
Also be provided with direct current transducer, the Faradaic current in induction electrolytic furnace.
Described control module comprises temperature control module, hydraulic control module and Pneumatic control module.
Recycle pump in described Hydraulic Station is for regulating the pressure of main pump.
This automation control system of the present invention, adopt PLC and industrial computer, achieve Automated condtrol and monitor in real time, not only produce increasingly automated, each corollary system automatic synchronization is carried out, decrease the error that manual operation causes, industrial computer not only achieves the precision of each corollary system controling parameters, the also running status of real time modelling field apparatus, greatly facilitate controllers, make High Temperature Furnaces Heating Apparatus control to become economical and efficient to stablize, and it is easy to maintenance, this is the good control mode of a kind of control performance, very large value is had for the traditional temperature controlling system of improvement, make self-feeding simultaneously, blowing is more accurately punctual, automatic lifting operation for electrolysis electrode also brings convenient labour-saving effect.
Accompanying drawing explanation
Fig. 1 is the overall control chart of high-temperature electrolysis stove automatization corollary system;
Fig. 2 is temperature control chart;
Fig. 3 is Electrode control figure;
Fig. 4 is discharging control chart.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, this high-temperature electrolysis stove automatization corollary system that the present invention proposes, comprise industrial computer 1, PLC2, the temperature controlling system 3 of electrolytic furnace heating zone and discharging thrust-augmenting nozzle, Electrode Lift Control System 4 and input and output material Controlling System 5 and supervisory control desk 6, in PLC, be provided with the control module of each Controlling System, be inside implanted with corresponding sequence of control.Temperature controlling system 3, Electrode Lift Control System 4 and input and output material Controlling System 5 are all operate under the control of industrial computer 1 and PLC2.Each system can not only operate separately, and under the Comprehensive Control of industrial computer, all right collaborative work, attainable function comprises: 1) temperature of electrolytic furnace heating zone and discharging thrust-augmenting nozzle controls, 2) rise fall of electrodes, 4) charging action, 3) discharging pushes away boat action, 5) supervision of individual field devices running status.
Because corollary system is more, the normal operation of High Temperature Furnaces Heating Apparatus be ensured, automation control system must reliably, data calculated, fill order accurately.The concrete structure of each system is:
Industrial computer 1 is all connected with PLC2 with supervisory control desk 6, and industrial computer is used for the realization of automatic operation, and supervisory control desk 6 is for the input of manual command.Any mode is all carried out with PLC2 alternately, whole system carries out communication by electric, the instrumental system in PLC2 and temperature controlling system 3, Electrode Lift Control System 4 and input and output material Controlling System 5, the action of control temperature, hydraulic pressure or pneumatic system, and by data upload to industrial computer 1.Faradaic current in electrolytic furnace, also sends PLC2 to by direct current transducer 7, and direct current transducer 7 is in electrolytic process, and whether one be carry out for observing electrolysis, and two is for manual shift anode lifting or automatic control anode lifting situation.
Industrial computer 1 also can connect the peripheral hardware such as printer 8, indicating meter 9 outward.
For ease of the realization of better understanding system Automated condtrol, the composition of each executive system that makes introductions all round below:
One, temperature controlling system 3
Temperature controlling system 3 controls the temperature of electrolytic furnace heating zone and the temperature of discharging thrust-augmenting nozzle.Both temperature control modes are the same, so here only for the temperature control introduction of electrolytic furnace heating zone.
As shown in Figure 2, electrolytic furnace heating zone temperature control system comprises thermopair temperature controller 31, thermocouple temperature measurement instrument 32, one infrared temperature control device 33, high-temperature infrared ray temperature measurer 34, and a switchboard 35, switchboard 35 is connected with electrolytic furnace heating element 37 by transformer 36.Thermopair temperature controller 31 is connected with industrial computer 1 and PLC2 with infrared temperature control device 33 1 aspect, is connected on the other hand with switchboard 35.Thermopair temperature controller 31 is for low temperature control, and infrared temperature control device 33 is for high-temperature control.Control principle is: temperature adopts thermopair temperature controller lower than when 900 DEG C, low temperature thermocouple collecting temperature signal, industrial computer displayed record, PLC and temperature controller are according to procedure auto-control furnace temperature, control signal passes to switchboard 35, switchboard 35 exports control voltage, transformer 36 output voltage, controls electrolytic furnace heating element 37 temperature and rises.When temperature reaches 900 DEG C, adopt high-temperature infrared ray testing temperature signal, change infrared temperature control device into and control, rise to 1800 DEG C, automatically run insulation program.Why defining this temperature, is that infrared thermometer is not showing lower than when 900 DEG C because adopt thermocouple temperature measurements more suitable lower than 900 DEG C; And more than 1800 DEG C is the optimal temperature of electrolysis refractory metal titanium.The temperature controlling system of thrust-augmenting nozzle adopts same configuration and type of heating, does not repeat at this.
Two, Electrode Lift Control System 4
Electrode Lift Control System 4, adopts hydraulic actuator.As shown in Figure 3, comprising a hydrauliccontroller 41 controlled by PLC2, is correlated with the unlatching of valve body in hydrauliccontroller 41 hydraulic control station 42, and control electrode holding card device 43, electrode lifting device 44 action execution.Hydraulic Station 42 has main pump 45, recycle pump 46, well heater 47, and pressure monitor 48, temperature monitor 49, the leve monitor 50 of monitoring Hydraulic Station state, and electrode holding card device 43, electrode lifting device 44 are all to provide power by main pump.Recycle pump is for regulating the pressure of main pump.
During work, Hydraulic Station is opened, and PLC2 accepts Hydraulic Station temperature, liquid level, pressure information, and temperature, liquid level, pressure are not reported to the police, and can carry out other operation.PLC system starts fill order, the action of Hydraulic Station corresponding mechanism, carries out the unclamping of electrode, holds action tightly, carry out rising, the step-down operation of conductive arm according to processing requirement according to processing requirement.This process still can be selected manually or automatically, and supervisory control desk 6 is all connected with PLC with industrial computer 1, and Non-follow control process is: on supervisory control desk, click Hydraulic Station start button, and Hydraulic Station main pump starts; Temperature is suitable, otherwise automatically starts well heater; Pressure is suitable, otherwise automatically starts recycle pump; Click holding card release button, hydrauliccontroller action, holding card is unclamped, and loads onto electrode, and click holding card and hold button tightly, hydrauliccontroller action, holding card holds electrode tightly; Click anode to rise or decline button, hydrauliccontroller action, anode rises or declines.Automatic control process is: click automatically in industrial computer, and electrode is according to the change of High Temperature Furnaces Heating Apparatus Faradaic current, and conductive arm automatically rises or declines, and keeps the stable of Faradaic current.
Three, charging and discharging Controlling System 5
As shown in Figure 4, the control piece mainly magnetic valve 51 of feed system, when needs charging, the magnetic valve controlled by PLC2 is opened, and feed-pipe is opened just can charging.When not needing charging, shut electromagnetic valve.
Due to the liquid that electrolysis completes, after thrust-augmenting nozzle is released, temperature is very high, impossible manual operation, therefore needs Automated condtrol discharging process to be crucial.Discharging controls to be exactly the action that major control pushes material boat, includes boat, pushes away boat and go out boat.
Discharging Controlling System adopts pneumatic mechanism to complete, and comprise pneumatic controller 52, air pump 53, enter boat fire door valve 54, go out boat fire door valve 55, baiting valve 56, delivery device 57 and limit sensors 58, limit sensors 58 is for the position of Real-time Feedback material boat 59.When electrolysis complete prepare blowing time, PLC instruction will enter boat fire door valve and opens, and booster air pump, opens into boat fire door 60, and air pump drives delivery device to push material boat under thrust-augmenting nozzle, and baiting valve is opened, and is dumped into material boat; Discharging is full, and baiting valve is closed, and then air pump continues to drive delivery device propelling movement material boat to move ahead, and material boat is pushed to cooling room, temperature lowers, and starts and boat fire door valve, goes out boat fire door 61 and opens, and material boat is pushed out, go out boat valve to close, fire door is closed, and material boat is transported to goods yard.Described delivery device is common is a pusher being arranged on guide rail.
Aforesaid operations process both can be manual, also can be automatic.PLC control system completes the operation of series, and action puts in place, and corresponding pilot lamp is bright.Select manually, just to operate on supervisory control desk; Select automatic operation, industrial computer completes above-mentioned action operating command, automatically carries out successively, until blowing completes, close out Zhou Men by the program of processing requirement.The execution of whole action is fed back by limit signal.
Feed system and discharge system can be taken into account mutually by PLC system, and after discharging completes, timely charging, does not allow blowing in fill process.
The independence of each corollary system of High Temperature Furnaces Heating Apparatus electrolysis production line controls and the continuity of entirety controls and monitoring, carry out communication by high-performance industrial computer by PLC system and electric, instrument, realize the signal collection to each corollary system of High Temperature Furnaces Heating Apparatus, data calculate, order Automated condtrol and the monitoring such as execution.The button that each corollary system of supervisory control desk Non-follow control works alone, can start corresponding supporting control according to processing requirement simultaneously, and PLC, according to hand signal order, performs relevant Controlling System action.Industrial computer performs automatic control function, performs related command according to processing sequence, and PLC controls relevant corollary system action, and industrial computer performs relevant picture monitoring simultaneously and reports to the police.The working method of this automatization is embodied in following several respects:
1) temperature controls: be divided into electrolytic furnace Heating Zone Temperature to control and the control of discharging thrust-augmenting nozzle temperature, both modes are the same, for: thermopair temperature controller receives the temperature information of thermocouple temperature measurement instrument feedback immediately, the temperature information of the instant receiving infrared-ray temperature measurer feedback of infrared temperature control device, these temperature informations are fed back to PLC by thermopair temperature controller and infrared temperature control device again, PLC is according to the instruction of industrial computer or supervisory control desk, determine to start thermopair temperature controller or infrared temperature control device, the temperature controller started by order sends order again to switchboard, switchboard is through transformation, output voltage heats to heating element,
Described PLC is according to the instruction of industrial computer or supervisory control desk, the principle starting thermopair temperature controller or infrared temperature control device is: when temperature starts thermopair temperature controller lower than when 900 DEG C, when temperature reaches 900 DEG C, change infrared temperature control device into, after rising to 1800 DEG C, start insulation program;
2) Electrode control: PLC is according to the instruction of industrial computer or supervisory control desk, primer fluid pressure-controlled program, when needs perform electrode holding card, electrode holding card valve body opened by hydrauliccontroller, starts main pump, provides enclasping force to electrode holding card device, when needs perform rise fall of electrodes, rise fall of electrodes valve body opened by hydrauliccontroller, starts main pump, provides lifting force to electrode lifting device; The pressure of recycle pump adjustment main pump;
3) feed control: PLC is according to the instruction of industrial computer or supervisory control desk, and when needs charging, PLC controls charging magnetic valve and opens, i.e. feed-pipe conducting, inwardly injects electrolysis raw material by feeding device;
4) discharging controls: PLC is according to the instruction of industrial computer or supervisory control desk, start pneumatic control program: when needs discharging, PLC instruction enters boat fire door valve and opens, air pump is opened into boat fire door, air pump drives delivery device to push material boat under thrust-augmenting nozzle, baiting valve is opened, the splicing of material boat, after material boat fills material, baiting valve is closed, then air pump continues to drive delivery device propelling movement material boat to move ahead, to cooling room cooling, PLC instruction goes out boat fire door valve and opens, and material boat is pushed out, go out boat fire door to close, material boat is transported to goods yard.
Claims (5)
1. control an automation system for electrolytic furnace temperature, rise fall of electrodes, input and output material, it is characterized in that: comprise PLC, industrial computer, hand held console, temperature controlling system, Electrode Lift Control System and charging and discharging Controlling System;
Described industrial computer is all connected with PLC alternately with supervisory control desk, and PLC is provided with the control module of each Controlling System as control center inside, and is implanted with corresponding sequence of control; Automatic manipulative procedure is provided with in described industrial computer; Described supervisory control desk has various required manual manipulation button;
Described temperature controlling system has two covers, and control the temperature of electrolytic furnace heating zone and discharging thrust-augmenting nozzle respectively, every suit system comprises thermopair temperature controller, infrared temperature control device, low temperature thermocouple temperature measurer, high-temperature infrared ray temperature measurer, switchboard, transformer; Temperature controller described in two is connected with industrial computer and PLC on the one hand, is connected on the other hand with switchboard; Described switchboard is connected with heating element by transformer, when temperature starts thermopair temperature controller lower than when 900 DEG C, starts infrared temperature control device when reaching 900 DEG C, when rising to 1800 DEG C, automatically runs insulation program;
Described Electrode Lift Control System, comprise a hydrauliccontroller controlled by PLC, described hydrauliccontroller connects Hydraulic Station, electrode holding card device and electrode lifting device, described Hydraulic Station comprises pressure monitor, temperature monitor, the leve monitor of main pump, recycle pump, well heater and monitoring Hydraulic Station state, and described electrode holding card device and electrode lifting device are all provide power by main pump;
Described feeding control system, comprise the charging magnetic valve controlled by PLC, described charging magnetic valve is arranged on feed-pipe;
Described discharging Controlling System, comprises a pneumatic controller controlled by PLC, described pneumatic controller control linkage air pump, enters boat fire door valve, goes out boat fire door valve, blowing magnetic valve and limit sensors; Enter boat fire door described in described air pump control linkage, go out boat fire door and material boat delivery device, described material boat delivery device is a pusher being arranged on guide rail, described pusher binder boat; The described position of limit sensors induction material residing for boat.
2. automation system according to claim 1, is characterized in that: described system also comprises a direct current transducer, is connected with PLC, the Faradaic current in induction electrolytic furnace.
3. automation system according to claim 1, is characterized in that: the described control module in PLC includes temperature control module, hydraulic control module and Pneumatic control module, connects temperature controller, hydrauliccontroller, pneumatic controller respectively.
4. the automation system according to claim 1 or 3, is characterized in that: the recycle pump in described Hydraulic Station is for regulating the pressure of main pump.
5. control an automatic mode for electrolytic furnace temperature, rise fall of electrodes, input and output material, it is characterized in that, comprise following several respects:
1) temperature controls: be divided into electrolytic furnace Heating Zone Temperature to control and the control of discharging thrust-augmenting nozzle temperature, both modes are the same, for: thermopair temperature controller receives the electrolytic furnace heating zone of thermocouple temperature measurement instrument feedback and the temperature information of discharging thrust-augmenting nozzle immediately, the instant electrolytic furnace heating zone of receiving infrared-ray temperature measurer feedback of infrared temperature control device and the temperature information of discharging thrust-augmenting nozzle, these temperature informations are fed back to PLC by thermopair temperature controller and infrared temperature control device again, PLC is according to the instruction of industrial computer or supervisory control desk, start thermopair temperature controller and infrared temperature control device, the temperature controller started by order sends order again to switchboard, switchboard is through transformation, export heater voltage to electrolytic furnace heating element and the heating of thrust-augmenting nozzle heating element,
Described PLC is according to the instruction of industrial computer or supervisory control desk, the principle starting thermopair temperature controller and infrared temperature control device is: when temperature starts thermopair temperature controller lower than when 900 DEG C, when temperature reaches 900 DEG C, change infrared temperature control device into, after rising to 1800 DEG C, start insulation program;
2) Electrode control: PLC is according to the instruction of industrial computer or supervisory control desk, primer fluid pressure-controlled program, when needs perform electrode holding card, electrode holding card valve body opened by hydrauliccontroller, starts main pump, provides enclasping force to electrode holding card device, when needs perform rise fall of electrodes, rise fall of electrodes valve body opened by hydrauliccontroller, starts main pump, provides lifting force to electrode lifting device; The pressure of recycle pump adjustment main pump;
3) feed control: PLC is according to the instruction of industrial computer or supervisory control desk, and when needs charging, PLC controls charging magnetic valve and opens, i.e. feed-pipe conducting, inwardly injects electrolysis raw material by feeding device;
4) discharging controls: PLC is according to the instruction of industrial computer or supervisory control desk, start pneumatic control program: when needs discharging, PLC instruction enters boat fire door valve and opens, air pump is opened into boat fire door, air pump drives delivery device to push material boat under thrust-augmenting nozzle, baiting valve is opened, the splicing of material boat, after material boat fills material, baiting valve is closed, then air pump continues to drive delivery device propelling movement material boat to move ahead, to cooling room cooling, PLC instruction goes out boat fire door valve and opens, and material boat is pushed out, go out boat fire door to close, material boat is transported to goods yard.
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| CN105571340B (en) * | 2015-12-18 | 2017-08-08 | 东北大学 | A kind of rotary automatic control device for fused magnesia furnace and electrode current control method |
| CN108919704A (en) * | 2018-06-22 | 2018-11-30 | 东南大学 | A kind of coulomb sulphur meter control system based on FPGA |
| CN108919739B (en) * | 2018-07-25 | 2020-08-21 | 嘉兴市合一工业电炉有限公司 | Industrial electric furnace control system |
| CN110129833B (en) * | 2019-05-23 | 2020-12-04 | 乐山有研稀土新材料有限公司 | Automatic feeding equipment for rare earth electrolysis and operation method thereof |
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| CN102756107A (en) * | 2012-06-18 | 2012-10-31 | 唐山钢铁集团微尔自动化有限公司 | Temperature control device of centrifugal casting machine |
| CN202916660U (en) * | 2012-06-08 | 2013-05-01 | 重庆安谐新能源技术有限公司 | Automatic control system for industrial silicon furnaces |
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| JPH01212725A (en) * | 1988-02-22 | 1989-08-25 | Nippon Steel Corp | Manufacture of titanium and titanium alloy |
| JPH0653954B2 (en) * | 1990-04-10 | 1994-07-20 | 株式会社ジャパンエナジー | Method for producing high-purity titanium |
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| CN202916660U (en) * | 2012-06-08 | 2013-05-01 | 重庆安谐新能源技术有限公司 | Automatic control system for industrial silicon furnaces |
| CN102756107A (en) * | 2012-06-18 | 2012-10-31 | 唐山钢铁集团微尔自动化有限公司 | Temperature control device of centrifugal casting machine |
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