CN114625055A - Redundancy control method of flame cutting system of continuous casting machine - Google Patents
Redundancy control method of flame cutting system of continuous casting machine Download PDFInfo
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- CN114625055A CN114625055A CN202210397770.9A CN202210397770A CN114625055A CN 114625055 A CN114625055 A CN 114625055A CN 202210397770 A CN202210397770 A CN 202210397770A CN 114625055 A CN114625055 A CN 114625055A
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- Prior art keywords
- limit
- flame cutting
- continuous casting
- cutting machine
- cutting system
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- 238000005520 cutting process Methods 0.000 title claims abstract description 51
- 238000009749 continuous casting Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004088 simulation Methods 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000012423 maintenance Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 238000005266 casting Methods 0.000 abstract description 10
- 238000010924 continuous production Methods 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Classifications
-
- 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
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0421—Multiprocessor system
-
- 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
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24182—Redundancy
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Continuous Casting (AREA)
Abstract
The invention belongs to the technical field of steel continuous casting, and relates to a redundant control method of a flame cutting system of a continuous casting machine. The initial electrical limit of the swinging gun of the cutting machine and the original electrical limit of the cutting machine are replaced by taking the clamping release signal of the flame cutting machine as a reference and matching with different delay times. Whether each simulation electric limit is put into use or not can be put into use or cut off through the HMI picture, and the delay time can be adjusted on the HMI picture immediately according to different production working conditions. After any one electrical limit of the flame cutting machine breaks down, the limit can be quickly simulated for use, the online rush-repair operation time can be reduced by 30 minutes/time, the potential safety hazard of high-temperature online rush-repair is thoroughly solved, and the continuous production stability of the casting machine is effectively ensured.
Description
Technical Field
The invention belongs to the technical field of steel continuous casting, and particularly relates to a redundant control method of a flame cutting system of a continuous casting machine.
Background
In the steel production process, the steel-making system takes an important position in the production of continuous casting billets, and the billet flame cutting system is one of key devices for the production of the continuous casting billets. In the continuous casting billet production process, molten steel passes through a crystallizer to form a casting blank, the casting blank is straightened by a withdrawal and straightening machine, a proper fixed length is set according to production requirements, and a billet is cut into the fixed length with the set length by using a continuous casting machine cutting system. Therefore, when the flame cutting system of the continuous casting machine is in a problem, the continuous casting machine directly stops the billet casting. Namely, the operation rate of the continuous casting cutting system directly influences the operation rate of the single-flow casting of the continuous casting machine.
The principle of conticaster flame cutting machine does, when the sizing system detected steel billet cutting position, send signal for the flame cutting machine, the steel billet was held in cutting machine normal position department to the flame cutting machine armful clamp this moment to follow the steel billet and remove together, gas and oxygen are lighted simultaneously, cut the steel billet by the initial spacing beginning through the flame cutting machine pendulum rifle, when the pendulum rifle reachs to finish spacing, the steel billet cutting finishes, pendulum rifle gas and oxygen are cut off, the flame cutting machine armful clamp is loosened, the flame cutting machine returns to the cutting machine normal position at last. Such flame cutters include three electrical limits, each of which plays a crucial role in the operating logic of the flame cutter. The temperature of the lower steel billet to be cut is between 800 ℃ and 900 ℃, so that the limiting working temperature of the flame cutting machine reaches 70-80 ℃. Such high temperatures cause frequent failures of cutter limiting, resulting in the failure of the flame cutter to work normally, and even the stop of the single-flow casting operation. And the high temperature makes it difficult for maintenance personnel to maintain it. When in maintenance, the single flow is stopped, maintenance personnel wear the heat insulation protective clothing, and multiple persons alternately operate to carry out rush repair treatment on the faults of the flame cutting machine, thereby seriously restricting the operation stability and continuity of equipment and having great influence on the productivity and benefit of companies.
Disclosure of Invention
The invention aims to provide a redundant control method of a flame cutting system of a continuous casting machine, which can avoid high temperature and is reliable to use, replaces the logical principle of electrical limit in program control, ensures the normal work of a flame cutting machine and ensures the production continuity of continuous casting billets.
The technical scheme adopted by the invention for solving the technical problems is as follows: a redundant control method for a flame cutting system of a continuous casting machine comprises the following steps:
1) combing the control program of the continuous casting flame cutting system in detail, and counting the electrical limiting point position related to each flow number from the original control program to form a list;
2) designing corresponding simulation limit according to the characteristics of each electrical limit and a program control principle;
3) corresponding to the list counted in the step 1), connecting the simulation limit designed in the step 2) and a corresponding electrical limit I point in parallel in a program to form a complete logic control program section;
4) after the trial run of the redundancy design logic program is successful, the original HMI picture control is perfected, the input/cut soft buttons of the corresponding simulation limit of each flow are programmed, and the delay time of each simulation limit is perfected into the HMI picture in the form of an input/output domain;
5) when the electrical limit is in fault, maintenance personnel can quickly put in/cut off the soft button through the simulation limit corresponding to the HMI picture to put in the simulation limit, and adjust the delay time according to the actual situation of field production to ensure the working continuity of the continuous casting flame cutting system.
The invention aims to improve the running stability of equipment, reserve the original logic control program of the flame cutting machine and optimize the control of the flame cutting machine on the basis of the original program control by designing a redundant control method applied to the flame cutting machine. In the optimized logic control program, a flame cutting machine clamping signal is used as a reference, a time control program is added, and the flame cutting machine clamping signal is used as the reference and is matched with delay time to replace cutting ending electric limit. The initial electrical limit of the swinging gun of the cutting machine and the original electrical limit of the cutting machine are replaced by taking the clamping release signal of the flame cutting machine as a reference and matching with different delay times. Whether each simulation electric limit is put into use or not can be put into use or cut off through the HMI picture, and the delay time can be adjusted on the HMI picture instantly according to different production working conditions. Because the clamping signal comes from the sizing system, the influence of the temperature of the steel billet is avoided, and the reliability is higher. Therefore, when the electrical limit of the flame cutting machine fails, the corresponding simulation limit can be selected on the HMI picture in time for use, and the delay time is adjusted. The redundant control of the flame cutting system can greatly increase the stability of the flame cutting system and reduce the casting flow stopping fault caused by the electric limit damage. The production continuity of the casting machine is ensured, and the operation efficiency of the casting machine is improved.
The invention has the following beneficial effects: the invention designs a redundant control method of the continuous casting flame cutting machine, realizes the redundant configuration of the electrical limit of the continuous casting flame cutting machine, namely, when any one electrical limit of the flame cutting machine fails, the limit can be quickly simulated for use, and the continuous operation of equipment is realized. Compared with the original design, the online rush-repair operation time can be reduced by 30 minutes/time by maintenance personnel, meanwhile, the potential safety hazard of high-temperature online rush-repair is thoroughly solved, the failure time of the flame cutting machine can be reduced by about 300 minutes every year, and the continuous production stability of the casting machine is effectively ensured.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the scope of the present invention is not limited to these examples. All changes, modifications and equivalents that do not depart from the spirit of the invention are intended to be included within the scope thereof.
A redundant control method for a flame cutting system of a continuous casting machine comprises the following steps:
1) combing the control program of the continuous casting flame cutting system in detail, and counting the electrical limiting point position related to each flow number from the original control program to form a list;
2) designing corresponding simulation limit according to the characteristics of each electrical limit and a program control principle;
3) corresponding to the list counted in the step 1), connecting the simulation limit designed in the step 2) and a corresponding electrical limit I point in parallel in a program to form a complete logic control program section;
4) after the trial run of the redundancy design logic program is successful, the original HMI picture control is perfected, the input/cut soft buttons of the corresponding simulation limit of each flow are programmed, and the delay time of each simulation limit is perfected into the HMI picture in the form of an input/output domain;
5) when the electrical limit is in fault, maintenance personnel can quickly put in/cut off the soft button through the simulation limit corresponding to the HMI picture to put in the simulation limit, and adjust the delay time according to the actual situation of field production to ensure the working continuity of the continuous casting flame cutting system.
The present invention is not limited to the above embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.
The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (1)
1. A redundant control method for a flame cutting system of a continuous casting machine is characterized by comprising the following steps:
1) combing control programs of the continuous casting flame cutting system in detail, and counting point positions of electrical limiting related to each flow from the original control programs to form a list;
2) designing corresponding simulation limit according to the characteristics of each electrical limit and a program control principle;
3) corresponding to the list counted in the step 1), connecting the simulation limit designed in the step 2) and a corresponding electrical limit I point in parallel in a program to form a complete logic control program section;
4) after the trial run of the redundancy design logic program is successful, the original HMI picture control is perfected, the input/cut soft buttons of the corresponding simulation limit of each flow are programmed, and the delay time of each simulation limit is perfected into the HMI picture in the form of an input/output domain;
5) when the electrical limit is in fault, maintenance personnel can quickly put in/cut off the soft button through the simulation limit corresponding to the HMI picture to put in the simulation limit, and adjust the delay time according to the actual situation of field production to ensure the working continuity of the continuous casting flame cutting system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210397770.9A CN114625055B (en) | 2022-04-15 | 2022-04-15 | Redundancy control method of continuous casting machine flame cutting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210397770.9A CN114625055B (en) | 2022-04-15 | 2022-04-15 | Redundancy control method of continuous casting machine flame cutting system |
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| CN114625055A true CN114625055A (en) | 2022-06-14 |
| CN114625055B CN114625055B (en) | 2024-03-12 |
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| CN202210397770.9A Active CN114625055B (en) | 2022-04-15 | 2022-04-15 | Redundancy control method of continuous casting machine flame cutting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106498A (en) * | 2022-06-30 | 2022-09-27 | 山东钢铁集团永锋临港有限公司 | Control method for fixed-stroke cutting of small square billet |
Citations (10)
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| US3614978A (en) * | 1968-07-01 | 1971-10-26 | Westinghouse Electric Corp | Computerized continuous casting system control responsive to strand position |
| DE3518333A1 (en) * | 1985-05-22 | 1987-01-08 | Aute Autogene Tech | Method for the operation of a continuous casting installation and a flame-cutting machine for cutting off continuously cast castings |
| KR19980057474A (en) * | 1996-12-30 | 1998-09-25 | 김광호 | Redundant fuse circuit of semiconductor memory device |
| CN101825888A (en) * | 2010-04-16 | 2010-09-08 | 西南大学 | Redundancy control method for selecting and switch-interlocking work modes of billet casting machine |
| CN202735771U (en) * | 2012-08-01 | 2013-02-13 | 北京首钢自动化信息技术有限公司 | Oxygen pipeline control system switching device |
| CN104698977A (en) * | 2015-03-03 | 2015-06-10 | 江苏永钢集团有限公司 | Fault determining and after-treatment process of infrared sizing of continuous casting machine |
| KR20150114587A (en) * | 2014-03-28 | 2015-10-13 | 현대제철 주식회사 | Continous casting apparatus and method for manufacturing slab by using the same |
| CN108661729A (en) * | 2017-03-31 | 2018-10-16 | 上海梅山钢铁股份有限公司 | It is provided with the hydraulic turning gear control loop of failure protecting device |
| CN215642268U (en) * | 2021-07-26 | 2022-01-25 | 山东莱钢永锋钢铁有限公司 | Dual-redundancy control device for measuring and calculating billet length of continuous casting machine |
| CN114273748A (en) * | 2022-02-16 | 2022-04-05 | 山东钢铁集团永锋临港有限公司 | Billet fixed-length cutting redundancy system for small square billets |
-
2022
- 2022-04-15 CN CN202210397770.9A patent/CN114625055B/en active Active
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|---|---|---|---|---|
| US3614978A (en) * | 1968-07-01 | 1971-10-26 | Westinghouse Electric Corp | Computerized continuous casting system control responsive to strand position |
| DE3518333A1 (en) * | 1985-05-22 | 1987-01-08 | Aute Autogene Tech | Method for the operation of a continuous casting installation and a flame-cutting machine for cutting off continuously cast castings |
| KR19980057474A (en) * | 1996-12-30 | 1998-09-25 | 김광호 | Redundant fuse circuit of semiconductor memory device |
| CN101825888A (en) * | 2010-04-16 | 2010-09-08 | 西南大学 | Redundancy control method for selecting and switch-interlocking work modes of billet casting machine |
| CN202735771U (en) * | 2012-08-01 | 2013-02-13 | 北京首钢自动化信息技术有限公司 | Oxygen pipeline control system switching device |
| KR20150114587A (en) * | 2014-03-28 | 2015-10-13 | 현대제철 주식회사 | Continous casting apparatus and method for manufacturing slab by using the same |
| CN104698977A (en) * | 2015-03-03 | 2015-06-10 | 江苏永钢集团有限公司 | Fault determining and after-treatment process of infrared sizing of continuous casting machine |
| CN108661729A (en) * | 2017-03-31 | 2018-10-16 | 上海梅山钢铁股份有限公司 | It is provided with the hydraulic turning gear control loop of failure protecting device |
| CN215642268U (en) * | 2021-07-26 | 2022-01-25 | 山东莱钢永锋钢铁有限公司 | Dual-redundancy control device for measuring and calculating billet length of continuous casting machine |
| CN114273748A (en) * | 2022-02-16 | 2022-04-05 | 山东钢铁集团永锋临港有限公司 | Billet fixed-length cutting redundancy system for small square billets |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115106498A (en) * | 2022-06-30 | 2022-09-27 | 山东钢铁集团永锋临港有限公司 | Control method for fixed-stroke cutting of small square billet |
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| CN114625055B (en) | 2024-03-12 |
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