CN106312001B - A method of realizing the transformation of slab caster slighter compress - Google Patents
A method of realizing the transformation of slab caster slighter compress Download PDFInfo
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- CN106312001B CN106312001B CN201610699278.1A CN201610699278A CN106312001B CN 106312001 B CN106312001 B CN 106312001B CN 201610699278 A CN201610699278 A CN 201610699278A CN 106312001 B CN106312001 B CN 106312001B
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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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
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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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
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- Continuous Casting (AREA)
Abstract
The invention belongs to field of metallurgical equipment, more particularly to a kind of method for realizing the transformation of slab caster slighter compress, this method for realizing the transformation of slab caster slighter compress, spare part fan-shaped section under line is transformed first, it is allowed to carry slighter compress function, then the fan-shaped section with slighter compress function being transformed is reached the standard grade use by stages, then replaced fan-shaped section is transformed.Meanwhile corresponding electrical system and former electrical system are relatively independent, can be arranged during conticaster production and normal service, completion is all transformed in final all fan-shaped sections, and electrical system utilizes caster maintenance time unification input slighter compress system after deploying.This method can easily be transformed conventional sector section and be allowed to band slighter compress function and not influence conticaster production, realize that side production, side transformation greatly shorten transformation downtime；Existing equipment is relied on, transformation direct cost is reduced；Greatly reduce indirect waste.
Description
Technical field
The invention belongs to field of metallurgical equipment, and in particular to a method of realizing the transformation of slab caster slighter compress.
Background technology
Traditional fan-shaped sections of slab continuous is susceptible to using fixed roll gap casting mode when casting some special steel grades
Strand center porosity and center segregation and other issues.Modern slab caster generally uses fan-shaped section dynamic soft-reduction skill
Art, being capable of effective solution these problems.
Currently, traditional slab caster is phased out or is transformed into the modern slab caster with slighter compress function.
But traditional slab caster and the modern slab caster with slighter compress function are in hydraulic control system and electric control system
Aspect has larger difference, and 4 compression hydraulic cylinders of traditional fan-shaped sections of slab continuous permanent gap values between rollers in casting process are constant,
The given pressure in strand any position is can not achieve, and 4 compression hydraulic cylinders of the fan-shaped sections of slab continuous with slighter compress function are full
The independent position of foot（Roll gap）Closed-loop control is, it can be achieved that each fan-shaped section gives " exact position " pressure respectively.
To the transformation of traditional slab caster slighter compress mainly transformation hydraulic control system and matched electric-controlled
System processed.According to general transformation thinking, after having manufactured all hydraulic pressure and electrical equipment, slab caster shuts down gradually modification liquid
Pressure and electrical system, in this way consuming time are long, are easy to make upstream and downstream ironmaking, steel-making, steel rolling equipment yield not in transformation process
Matching, certain loss is brought to enterprise.Therefore, it is badly in need of a kind of new hydraulic control method come to solve this technical barrier.
Invention content
The object of the present invention is to provide a kind of efficient methods for realizing the transformation of slab caster slighter compress, can easily change
Conventional sector section is made, band slighter compress function is allowed to, and conticaster production can not be influenced, realizes that side production, side are transformed, and maximum
Degree utilizes original hydraulic pressure and electrical equipment, reduces improvement cost.
For this purpose, the present invention provides a kind of method for realizing the transformation of slab caster slighter compress, include the following steps：
Step 1：It is complete by original clamping cylinder is changed to the clamping cylinder with slighter compress function in spare part fan-shaped section under line
At the transformation of spare part fan-shaped section；
Step 2：One PLC control main website of arrangement and several PLC control slave stations in conticaster production process, and with
Raw sheet billet continuous casting machine electric control system is mutual indepedent；
Step 3：During slab caster orderly closedown overhauls, produced in improved spare part fan-shaped section more thread-changing
Fan-shaped section the clamping cylinder for the fan-shaped section changed also then is changed to the clamping cylinder with slighter compress function；
Step 4：During slab caster orderly closedown overhauls, the control slave station in deposition step two is pressed from both sides with fan-shaped section
Crane span structure, cable between tight cylinder, and the control main website in deposition step two is communicated with raw sheet billet continuous casting machine electrical control PLC system
Cable；
Step 5：In conticaster overhaul, the PLC master station newly configured and raw sheet billet continuous casting machine electrical control PLC are connected
Communication between system monitors the system mode newly configured using original system, is shown on original system operation computer；
Step 6：Complete fan-shaped section slighter compress function debugging.
The method for realizing the transformation of slab caster slighter compress includes the slighter compress of hydraulic control system and electric control system
Function modifications.
The hydraulic control system includes the sector being connect with power station before the power station of offer power, transformation before being transformed
Section control valve platform and the driven roller hydraulic cylinder controlled by fan-shaped section control valve platform and the clamping cylinder with slighter compress function, it is described
Fan shaped section driving roller hydraulic cylinder controlled by original hydraulic valve platform, the clamping cylinder independently controls, original hydraulic valve platform
Control clamps cylinder assembly part and plays oil circuit on-off action, no longer commutation control, and the pressure of lifting of clamping cylinder is acted by end cap thereafter
Lifting is realized in upper integrated slighter compress hydraulic device control oil circuit conversion.
The clamping cylinder with slighter compress function be by the opened loop control of traditional clamping cylinder transform as using can essence
The really reversal valve of control flow（Proportional direction valve, servo proportion, high frequency direction changing ratio valve etc.）And the closed loop position that detecting element is constituted
Set the clamping cylinder under control system.
The closed loop location control system includes most basic servo hydraulic cylinder, accurately control the reversal valve of flow and
Sensor module, accurately controls the reversal valve of flow, servo hydraulic cylinder is sequentially connected, accurately control flow reversal valve and
Sensor module connects servo hydraulic cylinder, and servo hydraulic cylinder connection control conticaster executes structure, and servo hydraulic cylinder connects stoste
Pressure control valve platform, the signal that sensor module is fed back pass to electric-control system.
The sensor module includes displacement sensor and pressure sensor, and displacement sensor is mounted on servo hydraulic cylinder
Rear end cap position, pressure sensor at least there are two, corresponding two cavity positions mounted on servo hydraulic cylinder respectively.
The electric control system includes computer, former electrical PLC control stations, further include a PLC control main website and
Multiple PLC control slave stations, and former electrical PLC control stations are electrically connected with each fan shaped section driving roller hydraulic cylinder to be controlled and on computers
It is shown；The PLC controls main website is electrically connected each PLC and controls slave station, and each PLC controls slave station corresponds to a fan respectively
Four clamping cylinders of slighter compress function are carried in shape section；It is equipped between the PLC control main websites and former electrical PLC control stations logical
Interrogate cable.
The PLC controls main website uses S-400 model PLC modules, and controlling slave station by DP communication buses and each PLC connects
It connects, PLC controls slave station and uses S-300 model PLC modules, is connected by the sensor in private line access mode and fan-shaped section clamping cylinder
It connects.
Beneficial effects of the present invention：This method for realizing the transformation of slab caster slighter compress provided by the invention, first
Spare part fan-shaped section under line is transformed, is allowed to carry slighter compress function, then by stages by the fan-shaped section with slighter compress function being transformed
It reaches the standard grade use, then replaced fan-shaped section is transformed.Meanwhile corresponding electrical system and former electrical system are opposite only
It is vertical, it can be arranged during conticaster production and normal service, completion is all transformed in final all fan-shaped sections, and electrical system arranges
After finishing slighter compress system is put into using caster maintenance time unification.This method can easily be transformed conventional sector section and be allowed to
Band slighter compress function, and conticaster production can not be influenced, realize that side production, side transformation greatly shorten transformation downtime；
Existing equipment is relied on, transformation direct cost is reduced；Greatly reduce indirect waste.
Description of the drawings
The present invention is described in further details below with reference to attached drawing.
Fig. 1 is fan-shaped sections of slab continuous slighter compress transformation hydraulic pressure system layout.
Fig. 2 is the position control system figure constituted using the reversal valve for accurately controlling flow.
Fig. 3 is the basic composition frame chart of position control system.
Fig. 4 is fan-shaped sections of slab continuous slighter compress transformation electric control system configuration diagram.
Specific implementation mode
Embodiment 1：
The present embodiment provides a kind of methods for realizing the transformation of slab caster slighter compress, include the following steps：
Step 1：It is complete by original clamping cylinder is changed to the clamping cylinder with slighter compress function in spare part fan-shaped section under line
At the transformation of spare part fan-shaped section；
Step 2：One PLC control main website of arrangement and several PLC control slave stations in conticaster production process, and with
Raw sheet billet continuous casting machine electric control system is mutual indepedent；
Step 3：During slab caster orderly closedown overhauls, produced in improved spare part fan-shaped section more thread-changing
Fan-shaped section the clamping cylinder for the fan-shaped section changed also then is changed to the clamping cylinder with slighter compress function；
Step 4：During slab caster orderly closedown overhauls, the control slave station in deposition step two is pressed from both sides with fan-shaped section
Crane span structure, cable between tight cylinder, and the control main website in deposition step two is communicated with raw sheet billet continuous casting machine electrical control PLC system
Cable；
Step 5：In conticaster overhaul, the PLC master station newly configured and raw sheet billet continuous casting machine electrical control PLC are connected
Communication between system monitors the system mode newly configured using original system, is shown on original system operation computer；
Step 6：Complete fan-shaped section slighter compress function debugging.
The clamping cylinder with slighter compress function in the present embodiment refers to the modern sheet billet continuous casting with slighter compress function
Clamping cylinder used in machine, this method for realizing the transformation of slab caster slighter compress, is first transformed spare part fan-shaped section liquid under line
Original clamping cylinder in fan-shaped section is changed to the clamping cylinder with slighter compress function, and will carry slighter compress by pressure control device
The direction valve for accurately controlling flow integrated on the clamping cylinder of function is replaced with special logical oily device, is continuing with original valve
Platform controls oil circuit switching and realizes 4 clamping cylinder liftings.Improved fan-shaped section new in this way is suitable for original hydraulic pressure and electrical system,
During slab caster orderly closedown overhauls, with the fan-shaped section produced in the more thread-changing of improved fan-shaped section for continuing to change
It makes, successively rotation, does not influence conticaster and normally produce.Meanwhile hydraulic pressure and electric reconstruction part are mutual indepedent, do not influence each other,
Transformation process faster, it is more convenient.
The PLC control main websites and several PLC control slave stations and raw sheet billet continuous casting machine electric control system newly configured
Independently of each other, can in advance be arranged in conticaster production process, control crane span structure between slave station and fan-shaped section clamping cylinder, cable with
And new arrangement control main website can be during equipment orderly closedown overhauls with raw sheet billet continuous casting machine electrical control PLC system communication cable
Arrangement in advance.
When all online fan-shaped section hydraulic control system transformations finish, the corresponding electric control system newly configured deploys
Afterwards, last transformation is carried out using the conticaster overhaul time：In terms of hydraulic pressure, the direction valve for accurately controlling flow is returned into dress；
Electrical aspect is connected the communication between the PLC master station newly configured and former control system, the system newly configured is monitored using original system
State is shown on original system operation computer, finally completes fan-shaped section slighter compress function debugging.
This method can easily be transformed conventional sector section and be allowed to band slighter compress function and not influence conticaster life
Production realizes that side production, side transformation greatly shorten transformation downtime；Existing equipment is relied on, transformation direct cost is reduced；
Greatly reduce indirect waste.
The method for realizing the transformation of slab caster slighter compress includes the slighter compress of hydraulic control system and electric control system
Function modifications.
Embodiment 2：
Hydraulic control system is described in detail in the present embodiment, as shown in Figure 1, hydraulic control system includes transformation premise
For the fan-shaped section control valve platform being connect with power station before the power station of power, transformation and the drive controlled by fan-shaped section control valve platform
Dynamic roller hydraulic cylinder and the clamping cylinder with slighter compress function.
The liquid of 4 compression hydraulic cylinders of traditional continuous casting machine fan-shaped segment and 2 driven roller hydraulic cylinders usually by being installed on valve platform
Pressure control device respectively controls lifting, and hydraulic medium is converted to A, B oil circuit connection clamping cylinder through valve platform control device by P, T oil circuit
Two chambers.In the present embodiment, clamping cylinder control section function is converted to new system by the control clamping cylinder lifting of original system on valve platform
Oil circuit break-make defencive function（Three-position electromagnetic reversal valve uses unilateral electromagnet）, former hydraulic valve platform control hydraulic medium is by P, T
Oil circuit converts P1, T1 oil circuit, is connected to 4 clamping cylinders of fan-shaped section, and each clamping cylinder is independent by being respectively integrated on rear end cap
Slighter compress controls hydraulic device and realizes lifting action.2 driven roller hydraulic cylinders, fluid pressure line and valve platform utilize in fan-shaped section
Original hydraulic system, control action are identical as original system.
Hydraulic control mode changes compared with former fan-shaped section after the transformation of fan-shaped sections of slab continuous slighter compress, mainly
It transform the opened loop control of 4 clamping cylinders of original traditional continuous casting machine fan-shaped segment as 4 cylinder independent position closed-loop controls, the present embodiment
In, improved clamping cylinder is that the opened loop control of traditional clamping cylinder is transform as using the reversal valve for accurately controlling flow
（Proportional direction valve, servo proportion, high frequency direction changing ratio valve etc.）And the clamping under the closed loop location control system of detecting element composition
Cylinder.In conjunction with shown in Fig. 2 and Fig. 3, the closed loop location control system includes most basic servo hydraulic cylinder, accurately controls stream
The reversal valve and sensor module of amount, accurately control the reversal valve of flow, servo hydraulic cylinder is sequentially connected, and accurately control stream
The reversal valve and sensor module of amount connect servo hydraulic cylinder, and servo hydraulic cylinder connection control conticaster executes structure, servo-fluid
Cylinder pressure connects stoste pressure control valve platform, and the signal that sensor module is fed back passes to electric-control system, realizes closed-loop control
Function.
The sensor module includes displacement sensor and pressure sensor, and displacement sensor is mounted on servo hydraulic cylinder
Rear end cap position, pressure sensor at least there are two, corresponding two cavity positions mounted on servo hydraulic cylinder, displacement respectively passes
Sensor participates in closed-loop control, and pressure sensor plays detection.It is more directly accurate reliable to be on the one hand conducive to hydraulic control in this way,
On the other hand reduce the change to original hydraulic system, new clamping cylinder external interface, installation dimension are identical as original clamping cylinder, change
Making only need to be changed to the original clamping cylinder of fan-shaped section the new clamping cylinder with slighter compress function, and hydraulic piping is not in fan-shaped section
Become.
Embodiment 3：
The change of fan-shaped section clamping cylinder hydraulic control system determines that its corresponding electric-control system is also made accordingly to change.Such as
Shown in Fig. 4, the electric control system includes computer, former electrical PLC control stations, further include a PLC control main website and
Multiple PLC control slave stations, and former electrical PLC control stations are electrically connected with each fan shaped section driving roller hydraulic cylinder to be controlled and on computers
It is shown；The PLC controls main website is electrically connected each PLC and controls slave station, and each PLC controls slave station corresponds to one respectively and changes
Fan-shaped section after making；PLC is controlled and is equipped with communication cable between main website and former electrical PLC control stations.PLC controls main website and uses S-
400 model PLC modules control slave station with each PLC by DP communication buses and connect, and PLC controls slave station and uses S-300 models PLC
Module is connect by private line access mode with the sensor on fan-shaped section clamping cylinder, and PLC control slave stations correspond to each desk fan respectively
Shape section.The electrical control of fan shaped section driving roller hydraulic cylinder is controlled using the hydraulic valve platform of original system.
Embodiment 4：
In above-mentioned realization slab caster slighter compress transformation process, improved fan-shaped section is reached the standard grade in use, electric-control system
It is not involved in control, detecting element in 4 clamping cylinders（Such as displacement sensor, pressure sensor）It does not come into operation, can accurately control
The direction valve of flow processed is replaced with logical oily device, is continuing with original valve platform control oil circuit switching and is realized 4 clamping cylinder liftings.This
Sample makes hydraulic pressure and electric reconstruction part mutual indepedent, does not influence each other, transformation process faster, it is more convenient.
The method of this realization slab caster slighter compress transformation of the present invention, in Shandong iron company slab caster
To implement in slighter compress transformation project, adaptation step one to step 4 utilizes rotation during conticaster normal service that fan-shaped section is transformed,
And arrange the electrical control main website newly configured, the control work such as slave station and cable laying, wiring, the line inspection.Final step five, step
Six utilize the conticaster overhaul time, complete entire fan-shaped sections of slab continuous slighter compress function debugging, achieve good expection
Effect.
In conclusion this method for realizing the transformation of slab caster slighter compress provided by the invention, slab caster fan
, loss that reduction for a long time shut down and influence to entire process for making flow parallel with production is transformed in shape section slighter compress；Hydraulic pressure
The system reform utmostly utilizes original system, reduces loss, reduces time and the economic cost of transformation.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
Be with the present invention it is same or analogous design all belong to the scope of protection of the present invention within.
Claims (8)
1. a kind of method for realizing the transformation of slab caster slighter compress, which is characterized in that include the following steps：
Step 1：By original clamping cylinder is changed to the clamping cylinder with slighter compress function in spare part fan-shaped section under line, complete standby
The transformation of part fan-shaped section；
Step 2：Arrange that a PLC control main website and several PLC control slave station, and and raw sheet in conticaster production process
Billet continuous casting machine electric control system is mutual indepedent；
Step 3：During slab caster orderly closedown overhauls, with the fan produced in improved spare part fan-shaped section more thread-changing
The clamping cylinder for the fan-shaped section changed then also is changed to the clamping cylinder with slighter compress function by shape section；
Step 4：During slab caster orderly closedown overhauls, the control slave station in deposition step two and fan-shaped section clamping cylinder
Between crane span structure, cable, and the control main website in deposition step two and raw sheet billet continuous casting machine electrical control PLC system connection
Cable；
Step 5：In conticaster overhaul, the PLC master station newly configured and raw sheet billet continuous casting machine electrical control PLC system are connected
Between communication, monitor the system mode that newly configures using original system, be shown on original system operation computer；
Step 6：Complete fan-shaped section slighter compress function debugging.
2. the method for realizing the transformation of slab caster slighter compress as described in claim 1, it is characterised in that：Realize sheet billet continuous casting
The realization slab caster slighter compress function system that is transformed into of method of machine slighter compress transformation includes hydraulic control system and electrical
Control system.
3. the method for realizing the transformation of slab caster slighter compress as claimed in claim 2, it is characterised in that：The hydraulic pressure control
System processed includes that the fan-shaped section control valve platform being connect with power station before the power station of power, transformation and fan-shaped is provided before transformation
The driven roller hydraulic cylinder of section control valve platform control and the clamping cylinder with slighter compress function, the fan shaped section driving roller hydraulic cylinder
It is controlled by original hydraulic valve platform, the clamping cylinder independently closed-loop control, the oil circuit of original hydraulic valve platform control clamping cylinder
Break-make, clamping cylinder lift slighter compress hydraulic control device of the pressure action by the improved clamping cylinder with slighter compress function
Control.
4. the method for realizing the transformation of slab caster slighter compress as described in claim 1 or 3, it is characterised in that：The band
The clamping cylinder of slighter compress function is that the opened loop control of traditional clamping cylinder is transform as using the commutation for accurately controlling flow
Clamping cylinder under the closed loop location control system that valve and detecting element are constituted, the reversal valve for accurately controlling flow be than
Proportional direction valve, servo proportion or high frequency direction changing ratio valve.
5. the method for realizing the transformation of slab caster slighter compress as claimed in claim 4, it is characterised in that：The closed loop position
It sets control system to include servo hydraulic cylinder, accurately control the reversal valve of flow and sensor module, accurately controls flow
Reversal valve, servo hydraulic cylinder are sequentially connected, and are accurately controlled the reversal valve and sensor module connection servo hydraulic cylinder of flow, are watched
It takes hydraulic cylinder connection control conticaster and executes structure, servo hydraulic cylinder connects stoste pressure control valve platform, and sensor module is anti-by it
The signal of feedback passes to electric-control system.
6. the method for realizing the transformation of slab caster slighter compress as claimed in claim 5, it is characterised in that：The sensor
Component includes displacement sensor and pressure sensor, and displacement sensor is mounted on servo hydraulic cylinder rear end cap position, pressure sensing
There are two devices, respectively corresponding two cavity positions mounted on servo hydraulic cylinder.
7. the method for realizing the transformation of slab caster slighter compress as claimed in claim 2, it is characterised in that：The electric-controlled
System processed includes computer, former electrical PLC control stations, further includes a PLC control main website and multiple PLC control slave stations, former electricity
Gas PLC control stations are by controlling each fan shaped section driving roller hydraulic cylinder action of original hydraulic valve platform realization and carrying out on computers
Display；The PLC controls main website is electrically connected each PLC and controls slave station, and each PLC controls slave station corresponds to a fan-shaped section respectively
Upper four clamping cylinders for carrying slighter compress function；It is equipped with connection between the PLC control main websites and former electrical PLC control stations
Cable.
8. the method for realizing the transformation of slab caster slighter compress as claimed in claim 7, it is characterised in that：The PLC controls
Main website processed uses S-400 model PLC modules, and controlling slave station with each PLC by DP communication buses connect, and PLC controls slave station and uses
S-300 model PLC modules are connect by private line access mode with the sensor on fan-shaped section clamping cylinder.
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| CN201610699278.1A CN106312001B (en) | 2016-08-22 | 2016-08-22 | A method of realizing the transformation of slab caster slighter compress |
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| CN201610699278.1A CN106312001B (en) | 2016-08-22 | 2016-08-22 | A method of realizing the transformation of slab caster slighter compress |
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| CN106312001B true CN106312001B (en) | 2018-09-04 |
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| CN113399638B (en) * | 2021-06-29 | 2022-09-16 | 上海二十冶建设有限公司 | Partitioned step-by-step debugging method for sector section electrical system of slab caster |
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