CN113759814A - Step-by-step debugging method for tundish car electrical system of continuous casting machine - Google Patents
Step-by-step debugging method for tundish car electrical system of continuous casting machine Download PDFInfo
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- CN113759814A CN113759814A CN202110881577.8A CN202110881577A CN113759814A CN 113759814 A CN113759814 A CN 113759814A CN 202110881577 A CN202110881577 A CN 202110881577A CN 113759814 A CN113759814 A CN 113759814A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000009749 continuous casting Methods 0.000 title claims abstract description 16
- 238000012360 testing method Methods 0.000 claims abstract description 41
- 230000009471 action Effects 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000005266 casting Methods 0.000 claims description 35
- 230000008569 process Effects 0.000 claims description 8
- 230000000007 visual effect Effects 0.000 claims description 7
- 230000001174 ascending effect Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 238000012937 correction Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/12—Travelling ladles or similar containers; Cars for ladles
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1103—Special, intelligent I-O processor, also plc can only access via processor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention relates to a step-by-step debugging method of an electrical system of a tundish car of a continuous casting machine, which comprises the following steps of: checking an electric circuit of the tundish car before power receiving; in a decoupling state, testing all input/output interfaces of the related substation of the tundish car, and initially positioning a position detection switch; checking the emergency stop function of the tundish car, and confirming that the travelling and lifting actions of the tundish car can be stopped emergently after the emergency stop button is pressed down by each operating platform and each operating box; carrying out a running function test on the tundish car; and carrying out lifting function test on the tundish car. The invention can shorten the debugging period, improve the operation safety and convenience, facilitate the quick replacement of the tundish in the production process and ensure the construction quality.
Description
Technical Field
The invention relates to the field of installation and maintenance of an electrical system of large equipment, in particular to a step-by-step debugging method of an electrical system of a tundish car of a continuous casting machine.
Background
The tundish car of continuous casting machine is used for supporting, transporting and replacing tundish and has different structural forms of door type, half door type, suspension type and the like. The tundish car is used for conveying a tundish between a preheating position and a pouring position, also undertakes the tasks of tundish lifting, transverse fine adjustment and centering, accurate adjustment of an immersion nozzle in the pouring direction and the like, and is key equipment of a continuous casting machine. Whether the electric system of the tundish car can be put into and normally run as soon as possible is directly related to the construction progress and quality of the whole continuous casting production line.
The current common debugging method is that the debugging of an electrical system is carried out along with the installation of electrical and mechanical equipment and the hydraulic construction progress, and a PLC substation is provided with a plurality of wiring and line inspection works after being powered on, so that hidden dangers exist in the aspects of normal operation and personal safety of the PLC system; the structural form of the tundish car determines that a large amount of high-altitude operation is involved in the debugging process of the electric system; after the tundish preheating device, a tundish car hydraulic system and the like are put into operation, the surrounding operation environment of the tundish car is deteriorated, so that a plurality of potential safety hazards exist in the operation.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a step-by-step debugging method for an electric system of a tundish car of a continuous casting machine, which can shorten the debugging period, improve the operation safety and convenience, facilitate the quick replacement of the tundish in the production process and ensure the construction quality.
The technical scheme adopted by the invention for solving the technical problems is as follows: the step-by-step debugging method for the electric system of the tundish car of the continuous casting machine comprises the following steps of:
(1) checking an electric circuit of the tundish car before power receiving;
(2) in a decoupling state, testing all input/output interfaces of the related substation of the tundish car, and initially positioning a position detection switch;
(3) checking the emergency stop function of the tundish car, and confirming that the travelling and lifting actions of the tundish car can be stopped emergently after the emergency stop button is pressed down by each operating platform and each operating box;
(4) and (3) running function test is carried out on the tundish car, and the method specifically comprises the following steps: (41) in a manual mode, running motors of the tundish car are independently tested to determine that the running motors are consistent in rotating direction and correct in vehicle-mounted audible and visual alarm indication; (42) in a manual mode, the running motors of the tundish car are mechanically tested to run, the rotation direction of each running motor is confirmed to be consistent with the winding direction of the energy medium supply drag chain, the running direction meets the requirement and is consistent with the indication of each operating platform, each operating box and each HMI interface, and the vehicle-mounted audible and visual alarm indication is correct; (43) in a manual mode, accurately adjusting and positioning switches at each position in the traveling direction of the tundish car; (44) in an automatic mode, the running direction, position signals, running speed and acousto-optic alarm of the tundish car are checked and confirmed;
(5) the tundish car is subjected to lifting function test, and the method specifically comprises the following steps: (51) starting a hydraulic power system and a lubricating force system of the tundish car, and confirming that the pressure of each hydraulic cylinder is normal; (52) correcting a hydraulic lifting device of the tundish car; (53) in a manual mode, performing hydraulic lifting function test on the tundish car, and accurately adjusting and positioning each position switch; (54) in an automatic mode, performing hydraulic lifting function test on the tundish car; (55) in the maintenance mode, performing hydraulic lifting function test on the tundish car; (56) and testing the vibration function of the tundish car.
The step (1) is specifically as follows: (11) checking power supply loops of a PLC system, each control substation, an operation platform and an operation box corresponding to the tundish car; (12) inspecting the PLC system, each control substation, the operation box and the control electric circuit and the alarm electric circuit of the operation platform corresponding to the tundish car; (13) and inspecting a main loop and a control loop of a driving motor of the tundish car.
The step (2) is specifically as follows: (21) the PLC system receives power and completes configuration, and HMI monitoring pictures are put into and activate all substations; (22) testing an operation box of the tundish car, a control button of an operation table and an input/output interface of an indicator light; (23) positioning and interface testing are carried out on position detection switches of a casting speed reduction position, a casting limit, a preheating speed reduction position, a preheating position and a preheating limit of the tundish car in the traveling direction; (24) positioning and interface testing are carried out on position detection switches of an ascending deceleration position, an ascending limit position, a casting side descending deceleration position, a preheating side descending limit position and a preheating side descending deceleration position of the tundish car in the ascending and descending direction; (25) and performing action and interface tests on an electromagnetic valve and a proportional valve of the hydraulic lifting device of the tundish car.
The step (52) is specifically as follows: (521) testing safety valves of each hydraulic cylinder of a lifting device of the tundish car in a preheating position and a manual mode, simulating faults occurring in the correction process, confirming that the safety valves are powered off, and forbidding the tundish to move; (522) and under the preheating position and manual mode, measuring and correcting each lifting hydraulic cylinder of the lifting device of the tundish car, determining that the position sensor in each oil cylinder is set to zero in a target window, and confirming that the hydraulic lifting device realizes synchronization.
The step (56) is specifically as follows: (561) setting the casting length, the vibration step length and the period in a manual mode, simulating the casting process, and checking the lifting function of the tundish driven by the hydraulic lifting device of the tundish car according to a sine wave; (562) setting the casting length, the vibration step length and the time in a manual mode, simulating the casting process, and checking the lifting function of the tundish driven by the hydraulic lifting device of the tundish car according to triangular waves; (563) in an automatic mode, setting the casting length, the vibration step length and the period, simulating the casting process, and checking the lifting function of the tundish driven by a hydraulic lifting device of the tundish car according to a sine wave; (564) and in an automatic mode, setting the casting length, the vibration step length and the time, simulating the casting process, and checking the lifting function of the tundish driven by the hydraulic lifting device of the tundish car according to the triangular wave.
Advantageous effects
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: the invention scientifically and reasonably arranges the steps, main contents and methods of testing the tundish car in various operation modes such as manual operation, automatic operation, maintenance and the like; most of the debugging operations of the electrical system are completed before the tundish preheating device and the tundish car hydraulic system are put into operation, and unnecessary operation time under severe environments such as high temperature, wet and slippery conditions and the like is reduced, so that the debugging quality is ensured, the debugging period is shortened, and the safety risk of the debugging operations of the electrical system is greatly reduced; the synchronism of the hydraulic cylinder action of the hydraulic lifting device is tested and corrected, so that the tundish can be quickly replaced in the production process; the electric system of each tundish car can be organized in a flow operation mode in the debugging process, and also several tundish cars can be organized in a parallel operation mode according to the field condition.
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The embodiment of the invention relates to a step-by-step debugging method for an electric system of a tundish car of a continuous casting machine, wherein the continuous casting machine comprises the following components: the steel ladle rotary table, the tundish car, the crystallizer, the fan-shaped section, the conveying roller way and the like, wherein the tundish car comprises a car body, a walking device, a lifting device, a transverse fine-adjustment centering device, a weighing device, a vibrating device, an energy medium supply drag chain, a protective device and the like. As shown in fig. 1, the step-by-step debugging method includes:
step 1, debugging preparation;
step 1.1, familiarizing a schematic diagram of an electrical system of a tundish car;
step 1.2, preparing instruments and meters for debugging and operation tools;
step 2, checking an electric circuit of the tundish car No. 1 before power is received;
2.1, checking power supply loops of the corresponding PLC system, each control substation of the tundish car, the operating platform and the operating box;
step 2.2, controlling, alarming and other electric circuit inspection of the corresponding PLC system, each control substation of the tundish car, the operation box and the operation platform;
step 2.2, checking the main loop and the control loop of the driving motor of the tundish car
Step 3, in the decoupling state, testing all input/output interfaces of the related substation of the No. 1 tundish car and primarily positioning the position detection switches
Step 3.1, receiving power and completing configuration of the PLC system, and putting an HMI (human machine interface) monitoring picture into and opening each substation;
3.2, testing input and output interfaces of the corresponding operation box, a control button of the operation table and an indicator lamp;
3.3, detecting switch positioning and interface testing at each position of a casting speed reduction position, a casting limit position, a preheating speed reduction position, a preheating position and a preheating limit position in the traveling direction of the tundish car;
3.4, detecting switch positioning and interface testing at positions of a lifting deceleration position, a lifting limit position, a casting side descending limit position, a casting side lower limit position, a casting side descending deceleration position, a preheating side lower limit position and a preheating side descending deceleration position of the tundish car in the lifting direction;
step 3.5, the actions and the interface tests of the electromagnetic valve and the proportional valve of the hydraulic lifting device of the tundish car;
step 4, checking the emergency stop function of the tundish car No. 1, and confirming that the travelling and lifting actions of the tundish car can be stopped emergently after the emergency stop button is pressed down by each operating platform and each operating box;
step 5, No. 1 tundish car walking function test
Step 5.1, in a manual mode, independently running the travelling motors of the tundish car, and confirming that the rotating directions of the travelling motors are consistent and the vehicle-mounted audible and visual alarm indication is correct;
5.2, in a manual mode, the travelling motors of the tundish car are mechanically tested to run, the rotation direction of each travelling motor is confirmed to be consistent with the coiling direction of the energy medium supply drag chain, the travelling direction meets the requirement, and is consistent with the indication of each operating platform, each operating box and each HMI interface, and the vehicle-mounted audible and visual alarm indication is correct;
5.3, precisely adjusting and positioning switches at each position in the traveling direction of the tundish car in a manual mode;
step 5.4, in an automatic mode, checking and confirming the traveling direction, position signals, running speed, audible and visual alarm and the like of the No. 1 tundish car;
step 6, No. 1 tundish lifting function test
6.1, starting hydraulic, lubricating and other power systems of the tundish car, and confirming that the pressure of each hydraulic cylinder is normal;
6.2, correcting the hydraulic lifting device of the tundish car;
6.2.1, testing safety valves of hydraulic cylinders of a lifting device of the tundish car in a preheating position and manual mode, simulating faults in the correction process, confirming that the safety valves are powered off, and forbidding movement of the tundish;
6.2.2, measuring and correcting each lifting hydraulic cylinder of the tundish car lifting device in a preheating position and manual mode, determining that a position sensor in each oil cylinder is set to be zero in a target window, and confirming that the hydraulic lifting device realizes synchronization;
6.3, testing the hydraulic lifting function of the No. 1 tundish car in a manual mode, and accurately adjusting and positioning each position switch;
6.4, testing the hydraulic lifting function of the No. 1 tundish car in an automatic mode;
6.5, testing the hydraulic lifting function of the No. 1 tundish car in a maintenance mode;
step 6.6, No. 1 tundish car vibration function test
6.6.1, setting the casting length, the vibration step length and the period in a manual mode, simulating the casting process, and checking the lifting function of the tundish driven by the hydraulic lifting device of the tundish car according to a sine wave;
6.6.2, setting the casting length, the vibration step length and the time in a manual mode, simulating the casting process, and checking the lifting function of the tundish car hydraulic lifting device driven by a triangular wave;
6.6.3, setting the casting length, the vibration step length and the period in an automatic mode, simulating the casting process, and checking the lifting function of the tundish driven by the hydraulic lifting device of the tundish car according to the sine wave;
6.6.4, setting the casting length, the vibration step length and the time in an automatic mode, simulating the casting process, and checking the lifting function of the tundish car hydraulic lifting device driven by triangular waves;
step 7, debugging and commissioning of No. 1 tundish preheating device
And (5) repeating the steps 2 to 7, and completing debugging of other tundish vehicles in the same way.
It is worth mentioning that in the implementation process of the invention, each tundish car electrical system can be debugged according to the steps, and each tundish car electrical system can be organized in a line production mode in the debugging process, and also can be organized in a parallel operation mode according to the field condition.
The invention can be easily found that the steps, main contents and methods of testing the tundish car in various operation modes such as manual operation, automatic operation, maintenance and the like are scientifically and reasonably arranged; most of the debugging operations of the electrical system are completed before the tundish preheating device and the tundish car hydraulic system are put into operation, and unnecessary operation time under severe environments such as high temperature, wet and slippery conditions and the like is reduced, so that the debugging quality is ensured, the debugging period is shortened, and the safety risk of the debugging operations of the electrical system is greatly reduced; the synchronism of the hydraulic cylinder action of the hydraulic lifting device is tested and corrected, so that the tundish can be quickly replaced in the production process; the electric system of each tundish car can be organized in a flow operation mode in the debugging process, and also several tundish cars can be organized in a parallel operation mode according to the field condition.
Claims (5)
1. A step-by-step debugging method for an electrical system of a tundish car of a continuous casting machine is characterized by comprising the following steps:
(1) checking an electric circuit of the tundish car before power receiving;
(2) in a decoupling state, testing all input/output interfaces of the related substation of the tundish car, and initially positioning a position detection switch;
(3) checking the emergency stop function of the tundish car, and confirming that the travelling and lifting actions of the tundish car can be stopped emergently after the emergency stop button is pressed down by each operating platform and each operating box;
(4) and (3) running function test is carried out on the tundish car, and the method specifically comprises the following steps: (41) in a manual mode, running motors of the tundish car are independently tested to determine that the running motors are consistent in rotating direction and correct in vehicle-mounted audible and visual alarm indication; (42) in a manual mode, the running motors of the tundish car are mechanically tested to run, the rotation direction of each running motor is confirmed to be consistent with the winding direction of the energy medium supply drag chain, the running direction meets the requirement and is consistent with the indication of each operating platform, each operating box and each HMI interface, and the vehicle-mounted audible and visual alarm indication is correct; (43) in a manual mode, accurately adjusting and positioning switches at each position in the traveling direction of the tundish car; (44) in an automatic mode, the running direction, position signals, running speed and acousto-optic alarm of the tundish car are checked and confirmed;
(5) the tundish car is subjected to lifting function test, and the method specifically comprises the following steps: (51) starting a hydraulic power system and a lubricating force system of the tundish car, and confirming that the pressure of each hydraulic cylinder is normal; (52) correcting a hydraulic lifting device of the tundish car; (53) in a manual mode, performing hydraulic lifting function test on the tundish car, and accurately adjusting and positioning each position switch; (54) in an automatic mode, performing hydraulic lifting function test on the tundish car; (55) in the maintenance mode, performing hydraulic lifting function test on the tundish car; (56) and testing the vibration function of the tundish car.
2. The step-by-step debugging method for the tundish car electrical system of the continuous casting machine according to claim 1, wherein the step (1) is specifically as follows: (11) checking power supply loops of a PLC system, each control substation, an operation platform and an operation box corresponding to the tundish car; (12) inspecting the PLC system, each control substation, the operation box and the control electric circuit and the alarm electric circuit of the operation platform corresponding to the tundish car; (13) and inspecting a main loop and a control loop of a driving motor of the tundish car.
3. The step-by-step debugging method for the tundish car electrical system of the continuous casting machine according to claim 1, wherein the step (2) is specifically as follows: (21) the PLC system receives power and completes configuration, and HMI monitoring pictures are put into and activate all substations; (22) testing an operation box of the tundish car, a control button of an operation table and an input/output interface of an indicator light; (23) positioning and interface testing are carried out on position detection switches of a casting speed reduction position, a casting limit, a preheating speed reduction position, a preheating position and a preheating limit of the tundish car in the traveling direction; (24) positioning and interface testing are carried out on position detection switches of an ascending deceleration position, an ascending limit position, a casting side descending deceleration position, a preheating side descending limit position and a preheating side descending deceleration position of the tundish car in the ascending and descending direction; (25) and performing action and interface tests on an electromagnetic valve and a proportional valve of the hydraulic lifting device of the tundish car.
4. The step-by-step debugging method for the tundish car electrical system of the continuous casting machine according to claim 1, wherein the step (52) is specifically: (521) testing safety valves of each hydraulic cylinder of a lifting device of the tundish car in a preheating position and a manual mode, simulating faults occurring in the correction process, confirming that the safety valves are powered off, and forbidding the tundish to move; (522) and under the preheating position and manual mode, measuring and correcting each lifting hydraulic cylinder of the lifting device of the tundish car, determining that the position sensor in each oil cylinder is set to zero in a target window, and confirming that the hydraulic lifting device realizes synchronization.
5. The step-by-step debugging method for the tundish car electrical system of the continuous casting machine according to claim 1, wherein the step (56) is specifically as follows: (561) setting the casting length, the vibration step length and the period in a manual mode, simulating the casting process, and checking the lifting function of the tundish driven by the hydraulic lifting device of the tundish car according to a sine wave; (562) setting the casting length, the vibration step length and the time in a manual mode, simulating the casting process, and checking the lifting function of the tundish driven by the hydraulic lifting device of the tundish car according to triangular waves; (563) in an automatic mode, setting the casting length, the vibration step length and the period, simulating the casting process, and checking the lifting function of the tundish driven by a hydraulic lifting device of the tundish car according to a sine wave; (564) and in an automatic mode, setting the casting length, the vibration step length and the time, simulating the casting process, and checking the lifting function of the tundish driven by the hydraulic lifting device of the tundish car according to the triangular wave.
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| CN202110881577.8A CN113759814A (en) | 2021-08-02 | 2021-08-02 | Step-by-step debugging method for tundish car electrical system of continuous casting machine |
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| CN202110881577.8A CN113759814A (en) | 2021-08-02 | 2021-08-02 | Step-by-step debugging method for tundish car electrical system of continuous casting machine |
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| CN101928572A (en) * | 2009-06-19 | 2010-12-29 | 中冶成工上海五冶建设有限公司 | Electrical debugging method of coke dry quenching electrical drive and control system |
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| CN106401666A (en) * | 2016-07-26 | 2017-02-15 | 华电电力科学研究院 | Coal-fired unit EH oil and turbine adjusting security system debugging method and system |
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2021
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| CN101928572A (en) * | 2009-06-19 | 2010-12-29 | 中冶成工上海五冶建设有限公司 | Electrical debugging method of coke dry quenching electrical drive and control system |
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| JP2011008568A (en) * | 2009-06-26 | 2011-01-13 | Ricoh Co Ltd | Electronic equipment, method for controlling power source and control program |
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Application publication date: 20211207 |
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