CN102591286B - Online rolling plan dynamic pre-analysis and self-adjustment system and method - Google Patents
Online rolling plan dynamic pre-analysis and self-adjustment system and method Download PDFInfo
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Abstract
The invention relates to CIM (Computer Integrated Manufacturing) applicable for overall factory control and discloses an online rolling plan dynamic pre-analysis and self-adjustment system and method having quality information feedback. The online rolling plan dynamic pre-analysis and self-adjustment system comprises a rolling plan analysis module, a plan review condition generation module and a plan-regulation parameter evaluation module, wherein a rolling regulation management module and the rolling plan analysis module are connected to the plan-regulation parameter evaluation module through the plan review condition generation module; and the e plan-regulation parameter evaluation module is connected to a rolling technical parameter setting and calculating module through a technology and model parameter adjustment module. The method comprises the steps of: analyzing the rolling plan; comparing the rolling plan with the rolling regulation; screening regulation items; generating a plan review condition table and setting a rule-breaking and limit-exceeding mark; and displaying limit specification of the technology and prompting and automatically adjusting technological parameters. According to the online rolling plan dynamic pre-analysis and self-adjustment system and method, disclosed by the invention, automatic plan review is realized, plan reviewing efficiency is improved and the problem that plan defects cannot be discovered in time and exactly due to missed detection and misjudgment of artificial review can be avoided.
Description
Technical field
The present invention relates to a kind of computer integrated manufacturing system (CIM) that comprehensive factory controls that is applicable to, the plan, quality and the rolling mill practice that are particularly useful for the hot rolling production of smelter are controlled.
Background technology
The hot rolling mill of modernization smelter is taked level Four computer control system (L4～L1) conventionally, and the major function of control system at different levels is as follows:
Production manager level L4, mainly complete the mutual coordination of contract management, financial management, production schedule establishment, each production line, by contract application material, the production schedule is issued to L3 level, collect L3 level production actual achievement, follow the tracks of the condition of production and quality condition, organize the finished product tasks such as delivery of dispatching from the factory.
Production control level L3, the execution that mainly completes the production schedule is controlled, comprise adjustment and the distribution (issuing L2) of plan, the collection of production actual achievement, process and be uploaded to production manager level, three storehouses (slab storehouse, warehouse of steel roll, warehouse for finished product) managed, and carry out the tasks such as product quality monitoring.
Process control level L2, mainly carries out rolling procedure making and the optimizational function based on mathematical model, completes the setting calculation task of parameters of technique process.L2 receives the production schedule data that L3 issues, and production schedule data are calculated and are converted to production equipment control pre-set parameter, is handed down to Basic automation level L1.
Basic automation level L1, the sequential control of main finishing equipment, position control, speed control etc., L1 receives from the production equipment of L2 and controls pre-set parameter, realizes the control of production equipment, manufactures the product that meets the production schedule.
Specifically, take hot-strip production as example, first by production manager level L4, be responsible for working out Rolling plan, factory issues by L3 is rolling scaduledly rolled production, and hot-rolled finished product flows into subsequent processing or user after quality inspection is judged.The actual conditions of controlling according to production run, have certain constraint condition to rolling scaduled establishment, when rolling scaduled layout does not meet technological requirement, bring very big adverse effect can to production run and quality control, cause steel scrap or product quality defect.Although rolling scaduled, be to work out according to the rolling procedure pre-establishing substantially, but affected by other factors such as contract, logistics, the rolling scaduled phenomenon that just may have infraction of regulations when layout, and rolling procedure itself can not cover whole rolling scaduled combination requirements.Therefore, the rolling scaduled technologist of needs who is issued to L2 level through L3 level plans audit, finds in time and adjusts, and just can be rolled processing parameter setting and calculate, and be handed down to L1 level production control equipment and carry out product manufacture.
Denomination of invention is the Chinese invention patent (patent No. ZL200910272676.5 of " a kind of dynamic adjustment system for metallurgical continuous casting and continuous rolling production plan ", publication number CN101727103) disclose a kind of dynamic adjustment system for metallurgical continuous casting and continuous rolling production plan, this system comprises that continuous casting and continuous rolling production plan dynamically adjusts server, database connection and database, network, converter industrial automation system, rendering industry automated system, continuous casting industrial automation system, hot rolling industrial automation system and integrated planning system.Described continuous casting and continuous rolling production plan is dynamically adjusted the moment data that server can obtain described converter industrial automation system, rendering industry automated system and continuous casting industrial automation system, and rolling scaduled in database calculated in real time opening of heat plan and water constantly and dynamically generate casting machine cut-over plan according to described moment data and described integrated planning system storage, and produce order according to actual allocated slab.This system energy adaptive surface is to the mode of production of order, can realize STEELMAKING PRODUCTION production capacity maximizes and steel rolling process optimization, but, this system mainly considers that the plan in continuous casting and rolling production procedure dynamically adjusts, do not relate to audit and the product quality feedback of the production schedule, also exist following technical matters urgently to be resolved hurrily: on the one hand, because rolling scaduled rules content is many, in addition rolling scaduled adjustment is frequent, dependence manual examination and verification are rolling scaduled exists undetected erroneous judgement disconnected, can not promptly and accurately pinpoint the problems; The rolling scaduled waster that gently produces quality dissatisfaction in follow-up implementation of undetected erroneous judgement is heavy can cause milling equipment overload to cause equipment failure and industrial accident; On the other hand, product quality information feedback lags behind, and relevant information can not be provided in time automatically, can not guidance technology and the timely and effective adjustment of operating personnel; Critical process is controlled parameter and can not be evaluated in time online and information feedback, easily causes the quality problems of bulk article.
Summary of the invention
Another object of the present invention is to provide a kind of on-line rolling plan dynamic preanalysis self-adjusting system, solve existing steel rolling scheduler control system and rely on the rolling scaduled and artificial quality information feedback of manual examination and verification, cause inaccurate, the technical matters not in time of feedback adjusting, improve the control ability of production run, improve rolling stability, reduce mass defect incidence.
The present invention solves the problems of the technologies described above adopted technical scheme:
The dynamic preanalysis self-adjusting system of on-line rolling plan is placed in production control level L3 and a process control level L2 for the computer control system of steel rolling mill, and described production control level L3 comprises rolling scaduled control module 310, rolling procedure administration module 320, key control parameter generation module 330, quality information acquisition processing module 340 and L3 man-machine interactive interface 300; Described process control level L2 comprises rolling scaduled receiver module 210, technique and model parameter adjusting module 250, rolling technological parameter is set computing module 260 and L2 man-machine interactive interface 200; Described production control level L3 is connected to production manager level L4 by rolling scaduled control module 310, and described process control level L2 sets computing module 260 by rolling technological parameter and is connected to Basic automation level L1, it is characterized in that:
Described process control level L2 also comprises rolling scaduled parsing module 220, plan audit condition generation module 230 and plan-rule parameter evaluation module 240, described rolling scaduled parsing module 220 is connected to described rolling scaduled control module 310 by rolling scaduled receiver module 210;
Described rolling procedure administration module 320 and described rolling scaduled parsing module 220 are connected to plan-rule parameter evaluation module 240 by plan audit condition generation module 230;
Described plan-rule parameter evaluation module 240 connects rolling technological parameter by technique and model parameter adjusting module 250 and sets computing module 260, and described Basic automation level L1 feedback link is to technique and model parameter adjusting module 250.
A kind of preferably technical scheme of the dynamic preanalysis self-adjusting system of on-line rolling plan of the present invention, it is characterized in that described production control level L3 arranges key control parameter generation module 330, described process control level L2 arranges key control parameter evaluation module 270, described rolling scaduled control module 310 connects key control parameter evaluation module 270 by key control parameter generation module 330, key control parameter evaluation module 270 is connected to described plan-rule parameter evaluation module 240, described Basic automation level L1 feedback link is to key control parameter evaluation module 270.
A kind of better technical scheme of the dynamic preanalysis self-adjusting system of on-line rolling plan of the present invention, it is characterized in that described process control level L2 comprises technological limits specification management module 235, described technological limits specification management module 235 is connected to described plan-rule parameter evaluation module 240.
A kind of further improved technical scheme of the dynamic preanalysis self-adjusting system of on-line rolling plan of the present invention, it is characterized in that described process control level L2 arranges quality information database 280, alarm quality condition generation module 295 and quality feedback information comparing module 290, described quality information acquisition processing module 340 and alarm quality condition generation module 295 link quality information databases 280, described alarm quality condition generation module 295 is connected to described plan-rule parameter evaluation module 240 by quality feedback information comparing module 290.
The object of the invention is to provide a kind of dynamic preanalysis self-regulating method of on-line rolling plan for the dynamic preanalysis self-adjusting system of above-mentioned on-line rolling plan, solve the inaccurate and technical matters not in time that manual examination and verification are rolling scaduled and quality information feedback is adjusted, can automatically utilize quality control feedback information to carry out early warning to the product of plan rolling, improve control ability and the quality control level of production run.
The present invention solves the problems of the technologies described above adopted technical scheme:
The dynamic preanalysis self-regulating method of on-line rolling plan, for the dynamic preanalysis self-adjusting system of above-mentioned on-line rolling plan, comprising:
S100) for adjusting rolling scaduled and being handed down to the step of process control level;
S200) process control level reception is rolling scaduled, starts the step of technique preanalysis audit;
S500) according to steel rolling model, calculate the setting value of technological parameter and be issued to the step of Basic automation level;
S520) setting value of Basic automation level receiving process parameter, controls steel rolling equipment and carries out rolling scaduled step;
It is characterized in that described step S200 is afterwards further comprising the steps of:
S220) rolling scaduled for resolving according to index condition, compare rolling scaduled and rolling procedure, screening needs the rules entry of audit, generates the step of plan audit condition table;
S240) compare the rules entry in described plan audit condition table, judge rolling scaduledly whether meet rules requirement, if the technological parameter in described plan audit condition table meets rules requirement, go to step S500, otherwise execution step S260;
S260) sign that transfinites is in violation of rules and regulations set, by man-machine interactive interface output alarm information, shows the step of technological limits specification prompting;
S300) type that judgement is transfinited in violation of rules and regulations, if desired adjusts rolling scaduledly, returns to step S100, carries out and adjusts rolling scaduled operation;
S320) if desired adjusting process and model parameter, go to step S340, otherwise skip to the calculating that step S500 carries out setting value;
S340) adjusting process and model parameter; Then go to step the calculating that S500 carries out setting value.
A kind of specific embodiment of the dynamic preanalysis self-regulating method of on-line rolling plan of the present invention is that described index condition at least comprises that tapping mark, contract number, user, hardness, rolling thickness, rolling width, tapping temperature, roughing temperature, finishing temperature, coiling temperature, lateral pressure amount, the slab head breadth, slab tail are wide, one or more among slab length, slab thickness, slab number and de-scaling water parameter; Described rules entry comprises that lateral pressure amount requires, T-shaped base width surplus, with wide milimeter number require, width jumps and requires and jump one or more among requiring of temperature.
A kind of preferably technical scheme of the dynamic preanalysis self-regulating method of on-line rolling plan of the present invention, is characterized in that the described step S340 for adjusting process and model parameter comprises following action:
If lateral pressure amount transfinites, lateral pressure amount=BWmin-CW surpasses lateral pressure amount limits value Wlim, calculates finished product width correction amount Δ W, makes revised target finished width meet following requirement:
CWn=CW+ Δ W; Wherein, Δ W=BWmin-CW-Wlim, CWn is revised target finished width, and CW is finished width, and BWmin is width of plate slab or T-shaped base microcephaly's width of plate slab.
A kind of better technical scheme of the dynamic preanalysis self-regulating method of on-line rolling plan of the present invention, is characterized in that described for adjusting step S100 rolling scaduled and that be handed down to process control level, comprising following action:
If T-shaped base width surplus transfinites, the difference of the width of plate slab BWmax of T-shaped base major part and T-shaped base microcephaly's width of plate slab surpasses limits value BWlim, calculate slab width correction amount Δ BW, control Slab Cutting Machine the width of plate slab of T-shaped base major part excised to correction, make revised T-shaped base major part width B Wmaxn meet following requirement:
BWmaxn=BWmax-Δ BW, wherein Δ BW=BWmax-BWmin-BWlim;
Then, rolling scaduled according to the revised width of plate slab adjustment of excision, re-issue to process control level.
A kind of improved technical scheme of the dynamic preanalysis self-regulating method of on-line rolling plan of the present invention, is characterized in that described step S100 comprises following steps before:
S120) in the rolling scaduled middle step that critical process reference mark is set;
After described step S520, comprise the following steps:
S600) after rolling scaduled execution, the actual measurement parameter of parameter and plan execution is controlled in the plan at comparison critical process reference mark, the step of judgement plan accordance.
A kind of further improved technical scheme of the dynamic preanalysis self-regulating method of on-line rolling plan of the present invention, characterized by further comprising quality information feedback process: after every rolling scaduled completing, gather the product quality information that rolling completes, utilize production control level and process control level two-stage system, realize quality information feedback process, described quality information feedback process comprises following steps:
S140) step of acquisition quality information after rolling scaduled execution, described quality information at least comprises production time, one or more with among grade of steel, tapping mark, specification, layer alias, defect title, precision;
S160) step to process control level by quality information real time down;
S180) analyze quality information, the step of quality information being added to historical quality information database;
The dynamic preanalysis self-regulating method of described on-line rolling plan, also comprises the step S400 by the automatically actuated quality feedback information comparison of step S220:
S400) start the step of quality feedback information comparison, this step comprises following action:
S420), according to rolling scaduled kind, the step of retrieval quality information history data, generates alarm quality condition table;
S440) compare rolling scaduled and alarm quality condition table, if rolling scaduled product meets alarm quality condition, go to step S460 generation quality blockade information, otherwise, go to step the calculating that S500 carries out setting value;
S460) generate alarm quality and block information and warning message, go to step S240 and proceed rolling scaduled performance analysis according to quality feedback information.
The invention has the beneficial effects as follows:
1) rolling scaduled combination requirement systematically being changed into can be by the logical condition of Computer Automatic Recognition, realized the robotization of plan audit, not only improve the efficiency of plan audit, also avoided manual examination and verification to exist undetected erroneous judgement disconnected, can not promptly and accurately find to plan the problem of defect.
2) at process control level, automatically start rolling scaduled audit inspection, directly at human-computer interaction interface, show output judged result, improve accuracy and promptness.
3) in computer system, automatically realize the dynamic feedback of quality information, improve feedback efficiency, avoid quality information feedback to lag behind, easily cause the quality problems of bulk article.
4) critical process reference mark is evaluated and online feedback quality information and the rolling scaduled dynamic combination with analyzing, and has greatly improved the work efficiency of production management and process control, has improved the automatization level of hot rolling line.
5) realized the control parameter lateral pressure amount of rolling scaduled key and the audit and Automatic Optimal adjustment automatically of T-shaped base information, greatly improved work efficiency and product quality.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the dynamic preanalysis self-adjusting system of on-line rolling plan of the present invention
Fig. 2 is the process flow diagram of the dynamic preanalysis self-regulating method of on-line rolling plan of the present invention
Fig. 3 is the quality information feedback process flow diagram of the dynamic preanalysis self-regulating method of on-line rolling plan of the present invention
Embodiment
In order to understand better technique scheme of the present invention, below in conjunction with drawings and Examples, describe in detail further.
As shown in Figure 1, the dynamic preanalysis self-adjusting system of on-line rolling plan of the present invention belongs to the subsystem of smelter level Four computer control system, be placed in production control level L3 and the process control level L2 of the computer control system of steel rolling mill, in production control level L3, comprise rolling scaduled control module 310, rolling procedure administration module 320, key control parameter generation module 330, quality information acquisition processing module 340 and L3 man-machine interactive interface 300.In process control level L2, comprise rolling scaduled receiver module 210, technique and model parameter adjusting module 250, rolling technological parameter setting computing module 260 and L2 man-machine interactive interface 200, production control level L3 is connected to production manager level L4 by rolling scaduled control module 310.The Rolling plan that production manager level L4 works out is adjusted control through production control level L3, is issued to process control level L2 and carries out processing parameter setting calculating.Process control level L2 sets computing module 260 by rolling technological parameter and is connected to Basic automation level L1, controls rolling machinery and carries out Rolling plan according to the technological parameter of setting.In the embodiment described in Fig. 1, process control level L2 also comprises rolling scaduled parsing module 220, plan audit condition generation module 230 and plan-rule parameter evaluation module 240, rolling scaduled parsing module 220 is connected to rolling scaduled control module 310 by rolling scaduled receiver module 210.Rolling procedure administration module 320 and rolling scaduled parsing module 220 are connected to plan-rule parameter evaluation module 240 by plan audit condition generation module 230.Plan-rule parameter evaluation module 240 connects rolling technological parameter by technique and model parameter adjusting module 250 and sets computing module 260, Basic automation level L2 feedback link is to technique and model parameter adjusting module 250, actual achievement Value Data for process evaluation is fed back to process control level L2, realize the real-time adjustment of technique and model parameter.
In the embodiment of the dynamic preanalysis self-adjusting system of on-line rolling plan of the present invention shown in Fig. 1, production control level L3 arranges key control parameter generation module 330, process control level L2 arranges key control parameter evaluation module 270, rolling scaduled control module 310 connects key control parameter evaluation module 270 by key control parameter generation module 330, key control parameter evaluation module 270 is connected to plan-rule parameter evaluation module 240, Basic automation level L1 feedback link is to key control parameter evaluation module 270, actual achievement Value Data for process evaluation is fed back to key control parameter evaluation module 270, realize the Real-time Feedback of key control parameter.
In the embodiment of the dynamic preanalysis self-adjusting system of on-line rolling plan of the present invention shown in Fig. 1, process control level L2 comprises technological limits specification management module 235, and technological limits specification management module 235 is connected to described plan-rule parameter evaluation module 240.Technological limits specification management module 235 is set up and service procedure Limit specifications table according to the specification of the designed capacity of production equipment and product, when in 240 discoveries of plan-rule parameter evaluation module are rolling scaduled, a certain index transfinites, the technological limits specification table providing according to technological limits specification management module 235 is exported the technological limits specification information of this index, by L2 man-machine interactive interface 200 display reminding warning messages.
In the embodiment of the dynamic preanalysis self-adjusting system of on-line rolling plan of the present invention shown in Fig. 1, process control level L2 arranges quality information database 280, alarm quality condition generation module 295 and quality feedback information comparing module 290, quality information acquisition processing module 340 and alarm quality condition generation module 295 link quality information databases 280, alarm quality condition generation module 295 is connected to plan-rule parameter evaluation module 240 by quality feedback information comparing module 290.
Treatment scheme for the dynamic preanalysis self-adjusting system of above-mentioned on-line rolling plan provided by the invention as shown in Figure 2, comprises following steps:
S100) for adjusting rolling scaduled and being handed down to the step of process control level, this step is carried out by the computing machine of production control level L3, for receiving the rolling scaduled of production manager level L4 establishment, according to the requirement adjustment of production control level L3 and be transmitted to process control level L2.
S200) process control level L2 reception is rolling scaduled:
An embodiment who starts the step of technique preanalysis audit realizes by rolling scaduled start-stop sign is set, production control level L3 to process control level L2, issuing rolling scaduled in, issue rolling scaduled start-stop zone bit to L2, independently rolling scaduled so that L2 can identify.When L2 receives after rolling scaduled " end " zone bit, automatically start pre-audit function.
S220) rolling scaduled for resolving according to index condition, compare rolling scaduled and rolling procedure, screening needs the rules entry of audit, generates the step of plan audit condition table:
Rolling scaduled on-line automatic dynamic preanalysis function is when L2 receives rolling scaduled that L3 issues, and automatically starts preanalysis function.It is not subject to the impact of rolling scaduled adjustment, has the rolling scaduled preanalysis function that just automatically starts newly receiving at every turn, according to index condition, resolves rolling scaduled.
This step is set up different index conditions according to steel rolling operation region, according to index condition, resolves rolling scaduled.Described index condition at least comprises that tapping mark, contract number, user, hardness, rolling thickness, rolling width, tapping temperature, roughing temperature, finishing temperature, coiling temperature, lateral pressure amount, the slab head breadth, slab tail are wide, one or more among slab length, slab thickness, slab number and de-scaling water parameter.An embodiment of subregion index condition is referring to following index condition table:
Index condition table
| Plate indexes condition | Roughing index condition | Finish rolling index condition | Batch index condition |
| Tapping mark | Tapping mark | Tapping mark | Tapping mark |
| Contract number | Contract number | Contract number | Contract number |
| User | User | User | User |
| Hardness | Hardness | Hardness | Hardness |
| Rolling thickness (mm) | Rolling thickness (mm) | Rolling thickness (mm) | Rolling thickness (mm) |
| Rolling width (mm) | Rolling width (mm) | Rolling width (mm) | Rolling width (mm) |
| Tapping temperature | Tapping temperature | Tapping temperature | Tapping temperature |
| Roughing temperature | Roughing temperature | Roughing temperature | Roughing temperature |
| Finishing temperature | Finishing temperature | Finishing temperature | Finishing temperature |
| Coiling temperature | Coiling temperature | Coiling temperature | Coiling temperature |
| Whereabouts | Whereabouts | Whereabouts | Whereabouts |
| Lateral pressure amount | Lateral pressure amount | Contract thickness | Contract thickness |
| The slab head breadth | The slab head breadth | Contract width | Contract width |
| Slab tail is wide | Slab tail is wide | Slab number | Slab number |
| Slab length | Slab length | The type of cooling | The type of cooling |
| Slab thickness | Slab thickness | ? | ? |
| Slab number | Slab number | ? | ? |
Rolling procedure administration module is carried out setting up and management function of rolling procedure, and this module systematically changes into the technical requirement of rolling scaduled layout can be by the logical condition of Computer Automatic Recognition.Conventional described rules entry comprises that lateral pressure amount requires, T-shaped base width surplus, with wide milimeter number require, width jumps and requires and temperature jump requirement, the embodiment of rules entry is as follows:
A, lateral pressure amount require:
1) width of plate slab-finished width >=0mm;
2) the maximum lateral pressure amount that different slab thicknesses, hardness group and finished width allow requires to see the following form:
250mm thickness slab
| Hardness group | HG≤3 | HG≥4 |
| Maximum lateral pressure amount | 120 | 100 |
230mm thickness slab
Note: lateral pressure amount=width of plate slab-finished width
The regulation of B, T-shaped base width surplus
For T-shaped slab, its width surplus requires as follows:
1) little head width-finished width >=0mm;
2) large head width-little head width≤100mm.
C, with wide milimeter number, require:
Phase adjacent band steel target width differs 5mm and is considered as same width with interior, with the i.e. overall length of the same width specifications band of rolling steel in a hot rolling planning of wide milimeter number.
In the rolling scaduled complete list > of the < < of production control level L3 >, after " plan combined length ", increase " plan is with wide length ", on L3 man-machine interactive interface, show.
D, width jump and require:
Same inside the plan, by from being too narrow to wide direction: piece steel target width-front steel target width≤200mm, leniently arrive narrow direction: rear piece steel target width-front steel target width≤10mm.(find out the band grade of steel of inside the plan width maximum, by band steel serial number, target width contrasted)
E, temperature jump requirement, comprise
Slab charging temperature jumps: adjacent slab charging temperature is poor≤| 250|.L3 issues charging temperature calculated value to L2, by L2, the temperature of the two blocks of steel in front and back is contrasted.
Slab tapping temperature is jumped: adjacent two band steel tapping temperature target value differences≤| 30|, the hot rolling material of silicon steel plan can relax requirement to 60 ℃.
Strip finishing temperature desired value is jumped: adjacent two strip finishing temperature target value differences≤| 60|.
This step, according to the rolling scaduled and rolling procedure of above-mentioned index condition comparison, according to parameters such as rolling scaduled related product variety, specification and technological requirements, filters out the rules entry of the needs audit comprising in rolling procedure, generates plan audit condition table.Described plan audit condition table is exactly and current rolling scaduled relevant rules bar destination aggregation (mda).
S240) for comparing the rules entry of described plan audit condition table, judge rolling scaduledly whether meet rules requirement, if the technological parameter in described plan audit condition table meets rules requirement, go to step S500, otherwise execution step step S260:
This step is calculated the relevant project indicator according to the rules entry in plan audit condition table, judges whether the technological parameter in plan audit condition table meets rules requirement.The example of concrete technology parameter index is referring to following embodiment.
S260) sign that transfinites is in violation of rules and regulations set, by man-machine interactive interface output alarm information, shows the step of technological limits specification prompting:
When a certain index being detected and not meeting rolling procedure requirement, this piece band steel shows with certain special color on the rolling scaduled picture of L2 man-machine interactive interface, and according to transfinite type of sign display reminding information " lateral pressure amount transfinites " or " width knock-on ", " temperature is jumped large " etc., the technological limits specification table providing according to technological limits specification management module 235 shows the technological limits specification information of this index simultaneously.The embodiment of technological limits specification table is as shown in the table:
General steel grade technological limits specification table
The technological limits specification table of special tapping mark
S300) type that judgement is transfinited in violation of rules and regulations, if desired adjusts rolling scaduledly, returns to step S100, carries out and adjusts rolling scaduled operation:
This step, according to the corresponding processing mode of type selecting transfiniting in violation of rules and regulations, if project relates to rolling scaduled change in violation of rules and regulations, is returned to step S100, by production control level L3, adjusts rolling scaduled.A rolling scaduled self-adjusting embodiment is the rolling scaduled adjustment that T-shaped base width surplus transfinites.Now, the difference of the width of plate slab BWmax of T-shaped base major part and T-shaped base microcephaly's width of plate slab surpasses limits value BWlim, for example, slab major part width B Wmax-slab microcephaly width B Wmin > 100mm, this slab shows red in the rolling scaduled picture of L2 man-machine interactive interface, L2 feeds back to L3 by rolling scaduled inexecutable information, by L3, perform step S100, comprise following action: first, calculate slab width correction amount Δ BW, control Slab Cutting Machine the width of plate slab of T-shaped base major part is excised to correction, make revised T-shaped base major part width B Wmaxn meet following requirement:
BWmaxn=BWmax-Δ BW, wherein Δ BW=BWmax-BWmin-BWlim;
Then, rolling scaduled according to the revised width of plate slab adjustment of excision by production control level L3, re-issue to process control level L2, by L2, according to the new rolling scaduled setting that is rolled technological parameter, calculated.In the present embodiment, rolling technological parameter at least comprises roll gap and roll-force etc., L1 receives new processing parameter setting value, controls mechanical equipment of steel rolling (fixed-width side press and vertical miller) and controls roll gap and roll-force by revised width value, carries out steel rolling operation.
S320) if desired adjusting process and model parameter, go to step S340, otherwise skip to the calculating that step S500 carries out setting value:
This step continues to select corresponding processing mode according to the type transfiniting in violation of rules and regulations, if project relates to adjusting process and model parameter in violation of rules and regulations, go to step S340, by process control level L2, carry out technological parameter adjustment, otherwise, skip to step S500, by technologist, with reference to overload alarm information, carried out the calculating of setting value.
S340) step of adjusting process and model parameter:
One of the dynamic preanalysis self-regulating method of on-line rolling plan of the present invention realizes technique and model parameter self-adjusting embodiment is the self-adjusting that lateral pressure amount transfinites.Now, lateral pressure amount=BWmin-CW surpasses lateral pressure amount limits value Wlim, and process control level L2 automatically performs step S340, calculates finished product width correction amount Δ W, makes revised target finished width meet following requirement:
CWn=CW+ Δ W; Wherein, Δ W=BWmin-CW-Wlim, CWn is revised target finished width, and CW is finished width, and BWmin is width of plate slab or T-shaped base microcephaly's width of plate slab.
S500) according to steel rolling model, calculate the setting value of technological parameter and be issued to the step of Basic automation level L1:
This step completes the setting calculation task of parameters of technique process, and for example, L2 is according to rolling scaduled determined slab parameter and target finished width, and the setup parameters such as the roll-force of calculating according to steel rolling model, roll gap, are issued to Basic automation level L1.
S520) setting value of Basic automation level L1 receiving process parameter, control steel rolling equipment and carry out rolling scaduled step:
This step is controlled mechanical equipment of steel rolling (for example fixed-width side press and vertical miller) operation by Basic automation level L1, and the setting value issuing by L2 is controlled roll gap, roll-force, carries out steel rolling operation, according to rolling scaduled, produces qualified product.
In the embodiment of the dynamic preanalysis self-regulating method of on-line rolling plan shown in Fig. 2, also comprise following steps:
S120) in the rolling scaduled middle step that critical process reference mark is set:
For emphasis steel grade, by the key control parameter generation module 330 of L3 by providing with steel information and rolling procedure administration module 320 on rolling scaduled rolling procedure table contrast, according to the content of coupling, generate key control parameter table and be handed down to L2, and according to plate add, thick finish rolling, batch, the cold subregion of layer be presented on the rolling scaduled picture of man-machine interactive interface.The embodiment that described critical process reference mark and control require is as shown in following the reference mark list of heating process critical process and the reference mark list of operation of rolling critical process, and wherein related index condition is referring to the index condition table in above-described embodiment.
The reference mark list of heating process critical process
The reference mark list of operation of rolling critical process
S600) after rolling scaduled execution, the actual measurement parameter of parameter and plan execution is controlled in the plan at comparison critical process reference mark, the step of judgement plan accordance:
L2 carries out accordance evaluation to the actual conditions at critical process reference mark afterwards this piece belt steel rolling is complete, to the undesirable information indicating that carries out, evaluates each region that the content of notifying is presented at man-machine interactive interface and presets in the warning hurdle arranging on picture.
In existing system, after every rolling scaduled completing, production control level L3 gathers the product quality information that rolling completes, these quality informations that collect are delivered to production manager level L4, can not directly feed back to process control level L2, this has just caused product quality information feedback to lag behind, and relevant information can not be provided in time automatically, can not guidance technology and the timely and effective adjustment of operating personnel.The dynamic preanalysis self-regulating method of on-line rolling plan of the present invention has increased quality information feedback function, the product quality information that the rolling collecting is completed, utilize between L3 and L2 two-stage system and realize automatic feedback, remind technological operation personnel to adjust in time, avoid the generation of batch and repeated defects, the process flow diagram of quality information feedback process as shown in Figure 3, comprises following steps:
S140) step of acquisition quality information after rolling scaduled execution, described quality information at least comprises production time, one or more with among grade of steel, tapping mark, specification, layer alias, defect title, precision;
S160) step to process control level L2 by quality information real time down;
S180) analyze quality information, the step of quality information being added to quality information database:
Quality information database realizes subregion (roughing, finish rolling, layer cold), by the other Information Statistics of layer, according to area defects type categorization log history qualitative data, as the foundation that generates quality and block information, the real-time update suppressing information to ensure the quality of products.At the man-machine interactive interface of L3 and L2, subregion carries out that layer does not link and information shows, set up heating, roughing, finish rolling, layer cold, batch preanalysis picture.
A part of embodiment by area defects type categorization comprises:
Heating process related defects: M shape sticks up skin, sideline, burr, red iron sheet, finishing temperature blockade;
Roughing region related defects: burr, sideline, scuffing, width, black seal;
Finish rolling region related defects: thickness, width, roll brokenly, limit damage, roll marks, scuffing, iron scale, sticky iron, iron sheet ash, black seal, finishing temperature, section;
The cold process related defects of layer: coiling temperature blocks, scratches;
Batch region related defects: turriform, staggered floor, limit damage, overflow edge, greasy dirt volume.
S400) start the step of quality feedback information comparison, this step is started in the process of carrying out rolling scaduled parameter evaluation automatically by plan-rule parameter evaluation module, and this step comprises following action:
S420), according to rolling scaduled kind, the step of retrieval quality information history data, generates alarm quality condition table;
S440) compare rolling scaduled and alarm quality condition table, if rolling scaduled product meets alarm quality condition, go to step S460 generation quality blockade information, otherwise, go to step the calculating that S500 carries out setting value;
S460) generate alarm quality and block information and warning message, go to step S240 and proceed rolling scaduled performance analysis according to quality feedback information.
Alarm quality blocks information and warning message is to be presented in real time L3 man-machine interactive interface or L2 man-machine interactive interface according to concrete rolling scaduled related control hierarchy.An embodiment at production control level L3 display quality warning blockade information and warning message is that steel defect is added up and information prompting function with heat (batch) number: in L3, directly warehouse-in slab is carried out information contrast and judged, when same heat (batch) number (No. CAST) steel defect level >=2 piece, in L3 man-machine interactive interface, show " having blocked 2 with heat (batch) number steel " information, at warehouse-in slab consolidated statement, increase by two hurdles " No. CAST ", " with heat (batch) number rolling piece number-steel, blocking piece number ".
Another embodiment that alarm quality blocks information and warning message is that new spec and amount of rolling are few, rolling long specification information prompt facility interval time: for rolling first, amount of rolling be less than 5, the layer of rolling interval time long (being greater than 10 days) not, display reminding information " new spec ", " amount of rolling is few ", " rolling before n days " etc., remind operating procedure operating personnel to note variety variations.
An embodiment at process control level L2 display quality warning blockade information and warning message is the low information indicating of precision: system is compared by layer alias and historical production actual achievement rolling scaduled, generate alert if table, when if the precision of the last rolled band steel (thickness, width, finishing temperature, coiling temperature) is not lower than a certain value (as: 80%) with layer, at L2 man-machine interactive interface, show the information of " * * precision is low ".
The precision index that some are concrete and the embodiment of requirement thereof are as follows:
| Non-silicon steel: | Silicon steel (tapping mark comprises W): |
| Thickness and precision (± 30um) < 90%, | Thickness and precision (± 30um) < 80%, |
| Width accuracy (0～12mm) < 90%, | Width accuracy (0～12mm) < 80%, |
| Finishing temperature (± 20 ℃) < 80%, | Finishing temperature (± 20 ℃) < 70%, |
| Coiling temperature (± 20 ℃) < 80%, | Coiling temperature (± 20 ℃) < 70%, |
| Convexity precision (± 20um) < 80% | Convexity precision (± 20um) < 70% |
| Thickness and precision (± 30um) < 90%, | Thickness and precision (± 30um) < 80%, |
Above-mentioned alert if is the relation of "or", to meeting the information of alert if, all points out.
Another important embodiment that alarm quality blocks information and warning message is steel scrap information indicating: system is retrieved the last rolling actual achievement by the not identical principle of layer when being rolled plan preanalysis, if the last rolling produces steel scrap with the other product of layer, carry out information indicating, and to the refinement of steel scrap reason, increase the simple analysis of steel scrap reason, for example, the steel scrap that the different reasons such as steel scrap, sideslip steel scrap, the steel scrap that breaks are overlapped in rising of finish rolling steel scrap, and a cover steel scrap, the pinch roll that batches steel scrap do not nipped, reel is not nipped produce.Steel scrap reason can encode, makes drop-down menu form and occurs selecting after steel scrap for operating personnel at every turn.
Those of ordinary skill in the art will be appreciated that; above embodiment is only for technical scheme of the present invention is described; cited data in embodiment; only for technical scheme of the present invention is described; and be not used as limitation of the invention; any variation of the above embodiment being done based on connotation of the present invention, modification, all will drop in the protection domain of claim of the present invention.
Claims (10)
1. the dynamic preanalysis self-adjusting system of on-line rolling plan, the production control level (L3) and the process control level (L2) that are placed in the computer control system of steel rolling mill, described production control level (L3) comprises rolling scaduled control module (310), rolling procedure administration module (320), key control parameter generation module (330), quality information acquisition processing module (340) and L3 man-machine interactive interface (300); Described process control level (L2) comprises rolling scaduled receiver module (210), technique and model parameter adjusting module (250), rolling technological parameter is set computing module (260) and L2 man-machine interactive interface (200); Described production control level (L3) is connected to production manager level (L4) by rolling scaduled control module (310), described process control level (L2) is set computing module (260) by rolling technological parameter and is connected to Basic automation level (L1), it is characterized in that:
Described process control level (L2) also comprises rolling scaduled parsing module (220), plan audit condition generation module (230) and plan-rule parameter evaluation module (240), described rolling scaduled parsing module (220) is connected to described rolling scaduled control module (310) by rolling scaduled receiver module (210);
Described rolling procedure administration module (320) and described rolling scaduled parsing module (220) are connected to plan-rule parameter evaluation module (240) by plan audit condition generation module (230);
Described plan-rule parameter evaluation module (240) connects rolling technological parameter by technique and model parameter adjusting module (250) and sets computing module (260), and described Basic automation level (L1) feedback link is to technique and model parameter adjusting module (250).
2. the dynamic preanalysis self-adjusting system of on-line rolling plan claimed in claim 1, it is characterized in that described production control level (L3) arranges key control parameter generation module (330), described process control level (L2) arranges key control parameter evaluation module (270), described rolling scaduled control module (310) connects key control parameter evaluation module (270) by key control parameter generation module (330), key control parameter evaluation module (270) is connected to described plan-rule parameter evaluation module (240), described Basic automation level (L1) feedback link is to key control parameter evaluation module (270).
3. the dynamic preanalysis self-adjusting system of on-line rolling plan claimed in claim 1, it is characterized in that described process control level (L2) comprises technological limits specification management module (235), described technological limits specification management module (235) is connected to described plan-rule parameter evaluation module (240).
4. the dynamic preanalysis self-adjusting system of the on-line rolling plan described in arbitrary claim in claims 1 to 3, it is characterized in that described process control level (L2) arranges quality information database (280), alarm quality condition generation module (295) and quality feedback information comparing module (290), described quality information acquisition processing module (340) and alarm quality condition generation module (295) link quality information database (280), described alarm quality condition generation module (295) is connected to described plan-rule parameter evaluation module (240) by quality feedback information comparing module (290).
5. the dynamic preanalysis self-regulating method of on-line rolling plan, for the dynamic preanalysis self-adjusting system of the on-line rolling plan as described in any one of claim 1 to 4, comprising:
S100) for adjusting rolling scaduled and being handed down to the step of process control level;
S200) process control level reception is rolling scaduled, starts the step of technique preanalysis audit;
S500) according to steel rolling model, calculate the setting value of technological parameter and be issued to the step of Basic automation level;
S520) setting value of Basic automation level receiving process parameter, controls steel rolling equipment and carries out rolling scaduled step; It is characterized in that described step S200 also comprises following steps afterwards:
S220) rolling scaduled for resolving according to index condition, compare rolling scaduled and rolling procedure, screening needs the rules entry of audit, generates the step of plan audit condition table;
S240) compare the rules entry in described plan audit condition table, judge rolling scaduledly whether meet rules requirement, if the technological parameter in described plan audit condition table meets rules requirement, go to step S500, otherwise execution step S260;
S260) sign that transfinites is in violation of rules and regulations set, by man-machine interactive interface output alarm information, shows the step of technological limits specification prompting;
S300) type that judgement is transfinited in violation of rules and regulations, if desired adjusts rolling scaduledly, returns to step S100, carries out and adjusts rolling scaduled operation;
S320) if desired adjusting process and model parameter, go to step S340, otherwise skip to the calculating that step S500 carries out setting value;
S340) adjusting process and model parameter; Then go to step the calculating that S500 carries out setting value.
6. the dynamic preanalysis self-regulating method of on-line rolling plan according to claim 5, is characterized in that described index condition at least comprises that tapping mark, contract number, user, hardness, rolling thickness, rolling width, tapping temperature, roughing temperature, finishing temperature, coiling temperature, lateral pressure amount, the slab head breadth, slab tail are wide, one or more among slab length, slab thickness, slab number and de-scaling water parameter; Described rules entry comprises that lateral pressure amount requires, T-shaped base width surplus, with wide milimeter number require, width jumps and requires and jump one or more among requiring of temperature.
7. the dynamic preanalysis self-regulating method of on-line rolling plan according to claim 5, is characterized in that the described step S340 for adjusting process and model parameter comprises following action:
If lateral pressure amount transfinites, calculate finished product width correction amount Δ W, revise goal finished width is: CWn=CW+ Δ W; Wherein, lateral pressure amount=BWmin-CW, CWn is revised target finished width, CW is finished width, Δ W=BWmin-CW-Wlim, BWmin is width of plate slab or T-shaped base microcephaly's width of plate slab, the higher limit that Wlim is lateral pressure amount.
8. the dynamic preanalysis self-regulating method of on-line rolling plan according to claim 5, is characterized in that described for adjusting step S100 rolling scaduled and that be handed down to process control level, comprising following action:
If T-shaped base width surplus transfinites, the difference of the width of plate slab BWmax of T-shaped base major part and T-shaped base microcephaly's width of plate slab surpasses limits value BWlim, calculate slab width correction amount Δ BW, control Slab Cutting Machine the width of plate slab of T-shaped base major part excised to correction, make revised T-shaped base major part width B Wmaxn meet following requirement:
BWmaxn=BWmax-Δ BW, wherein Δ BW=BWmax-BWmin-BWlim;
Rolling scaduled according to the revised width of plate slab adjustment of excision, re-issue to process control level.
9. the dynamic preanalysis self-regulating method of the on-line rolling plan described in arbitrary claim in claim 5 to 8, is characterized in that comprising before described step S100 following steps:
S120) in the rolling scaduled middle step that critical process reference mark is set;
After described step S520, comprise the following steps:
S600) after rolling scaduled execution, the actual measurement parameter of parameter and plan execution is controlled in the plan at comparison critical process reference mark, the step of judgement plan accordance.
10. the dynamic preanalysis self-regulating method of the on-line rolling plan described in arbitrary claim in claim 5 to 8, characterized by further comprising quality information feedback process: after every rolling scaduled completing, gather the product quality information that rolling completes, utilize production control level and process control level two-stage system, realize quality information feedback process, described quality information feedback process comprises following steps:
S140) step of acquisition quality information after rolling scaduled execution, described quality information at least comprises production time, one or more with among grade of steel, tapping mark, specification, layer alias, defect title, precision;
S160) step to process control level by quality information real time down;
S180) analyze quality information, the step of quality information being added to historical quality information database; The dynamic preanalysis self-regulating method of described on-line rolling plan, also comprises the step S400 by the automatically actuated quality feedback information comparison of step S220:
S400) start the step of quality feedback information comparison, this step comprises following action:
S420), according to rolling scaduled kind, the step of retrieval quality information history data, generates alarm quality condition table;
S440) compare rolling scaduled and alarm quality condition table, if rolling scaduled product meets alarm quality condition, go to step S460 generation quality blockade information, otherwise, go to step the calculating that S500 carries out setting value;
S460) generate alarm quality and block information and warning message, go to step S240 and be rolled plan dynamically and analyze according to quality feedback information.
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