CN102591286A - 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 is applicable to the control of comprehensive factory, be particularly useful for plan, quality and the rolling mill practice control of the hot rolling production of smelter.
Background technology
The modernization smelter hot rolling mill take usually the level Four computer control system (L4～L1), the major function of control system at different levels is following:
Production management level L4; Main accomplish the mutual coordination of contract management, financial management, production schedule establishment, each production line, according to the contract application material, the production schedule is issued the L3 level, collect the L3 level the production actual achievement, follow the tracks of the condition of production and quality situation, organize the finished product tasks such as delivery of dispatching from the factory.
Production control level L3; The main execution control of accomplishing the production schedule comprises the adjustment and the distribution (issuing L2) of plan, the collection of production actual achievement, handles and be uploaded to the production management level; Three storehouses (slab storehouse, warehouse of steel roll, warehouse for finished product) managed, and carried out tasks such as product quality monitoring.
Process control level L2, main rolling procedure making and the optimizational function of carrying out based on mathematical model, the set-up and calculated task of completion parameters of technique process.L2 receives the production schedule data that L3 issues, and converts production schedule data computation into production equipment controlled variable setting value, is handed down to basic automatization level L1.
Basic automatization level L1 mainly accomplishes the sequential control, position control, speed control of equipment etc., and L1 receives the production equipment controlled variable setting value from L2, realizes the control of production equipment, makes the product of accords with production plan.
Specifically, be example with hot-strip production, at first be responsible for working out the Rolling Production plan by production management level L4, factory rolling scaduledly is rolled production by what L3 issued, and hot-rolled finished product is judged back inflow subsequent processing or user through quality inspection.Actual conditions according to production run control have certain constraint condition to rolling scaduled establishment, when rolling scaduled layout is not satisfied technological requirement, bring very big adverse effect can for production run and quality control, cause steel scrap or product quality defect.Though rolling scaduled is to work out according to the rolling procedure of formulating in advance basically; But receive other factor affecting such as contract, logistics; The rolling scaduled phenomenon that when layout, just possibly have infraction of regulations, and rolling procedure itself can not cover whole rolling scaduled combination requirements.Therefore, the rolling scaduled technologist of needs who is issued to the L2 level through the L3 level plans audit, in time finds and adjusts, and just can be rolled processing parameter setting and calculate, and be handed down to L1 level control production equipment and carry out the product manufacturing.
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 program planning system.Said continuous casting and continuous rolling production plan is dynamically adjusted the moment data that server can obtain said converter industrial automation system, rendering industry automated system and continuous casting industrial automation system; And be stored in rolling scaduled in the database according to said moment data and said integrated program planning system and calculate opening of heat plan in real time and water constantly and dynamically generate the casting machine cut-over plan, and produce order according to the actual allocated slab.This system's ability adaptive surface is to the mode of production of order; Can realize STEELMAKING PRODUCTION production capacity maximization and steel rolling process optimization, still, this system considers that mainly the plan in the continuous casting and rolling production procedure dynamically adjusts; Do not relate to the audit and the product quality feedback of the production schedule; Also exist following technical matters to need to be resolved hurrily: on the one hand, because rolling scaduled rules content is many, rolling scaduled in addition adjustment is frequent; The dependence manual examination and verification are rolling scaduled to exist the omission erroneous judgement disconnected, can not promptly and accurately pinpoint the problems; The rolling scaduled waster that in follow-up implementation, gently then produces quality dissatisfaction of omission erroneous judgement is heavy then can cause the 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 in time be provided automatically, can not guidance technology and the timely and effective adjustment of operating personnel; The critical process controlled variable can not online timely evaluation and information feedback, causes the quality problems of bulk article easily.
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 untimely technical matters of feedback adjustment; Improve the control ability of production run, improve rolling stability, reduce the mass defect incidence.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
The dynamic preanalysis self-adjusting system of a kind of on-line rolling plan places the production control level L3 and the process control level L2 of 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, technology and model parameter adjusting module 250, rolling technological parameter set-up and calculated module 260 and L2 man-machine interactive interface 200; Described production control level L3 is connected to production management level L4 through rolling scaduled control module 310, and described process control level L2 is connected to basic automatization level L1 through rolling technological parameter set-up and calculated module 260, 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 through rolling scaduled receiver module 210;
Described rolling procedure administration module 320 is connected to plan-rule parameter evaluation module 240 with described rolling scaduled parsing module 220 through plan audit condition generation module 230;
Described plan-rule parameter evaluation module 240 connects rolling technological parameter set-up and calculated module 260 through technology and model parameter adjusting module 250, and described basic automatization level L1 feedback is connected to technology and model parameter adjusting module 250.
A kind of preferable technical scheme of the dynamic preanalysis self-adjusting system of on-line rolling plan of the present invention is that described production control level L3 is provided with key control parameter generation module 330; Described process control level L2 is provided with key control parameter evaluation module 270; Described rolling scaduled control module 310 connects key control parameter evaluation module 270 through key control parameter generation module 330; Key control parameter evaluation module 270 is connected to described plan-rule parameter evaluation module 240, and described basic automatization level L1 feedback is connected 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 is that described process control level L2 comprises technological limits specification management module 235, and 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 is that described process control level L2 is provided with quality information database 280, quality alert if generation module 295 and quality feedback information comparing module 290; Described quality information acquisition processing module 340 and quality alert if generation module 295 link quality information databases 280, described quality alert if generation module 295 is connected to described plan-rule parameter evaluation module 240 through quality feedback information comparing module 290.
The objective of the invention is to provide a kind of dynamic preanalysis self-regulating method of on-line rolling plan that is used for the dynamic preanalysis self-adjusting system of above-mentioned on-line rolling plan; Solve the rolling scaduled inaccurate and untimely technical matters of adjusting with quality information feedback of manual examination and verification; Can utilize the quality control feedback information to carry out early warning automatically, improve the control ability and the quality control level of production run planning rolling product.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
The dynamic preanalysis self-regulating method of a kind of on-line rolling plan is used for the dynamic preanalysis self-adjusting system of above-mentioned on-line rolling plan, comprising:
S100) be used to adjust rolling scaduled and be handed down to the step of process control level;
S200) the process control level reception is rolling scaduled, starts the step of technology preanalysis audit;
S500) according to the setting value of steel rolling Model Calculation technological parameter and be issued to the step of basic automatization level;
S520) setting value of basic automatization level receiving process parameter, the control steel rolling equipment is carried out rolling scaduled step;
It is characterized in that the dynamic preanalysis self-regulating method of described on-line rolling plan is further comprising the steps of:
S220) be used for resolving according to the index condition rolling scaduled, compare rolling scaduled and rolling procedure, screening needs the rules clauses and subclauses of audit, and the step of audit condition table is planned in generation;
S240) be used for comparing the rules clauses and subclauses that the condition table is examined in said plan, judge the rolling scaduled rules requirement of whether satisfying,, then change step S500 if the technological parameter in the said plan audit condition table satisfies the rules requirement, otherwise execution in step step S260;
S260) sign that transfinites in violation of rules and regulations is set,, shows the step of technological limits specification prompting through man-machine interactive interface output alarm information;
S300) judge the type that transfinites in violation of rules and regulations,, then return step S100, carry out the rolling scaduled operation of adjustment if need adjustment rolling scaduled;
S320) if need adjusting process and model parameter, then go to step S340, otherwise skip to the calculating that step S500 carries out setting value;
S340) step of adjusting process and model parameter.
A kind of concrete embodiment of the dynamic preanalysis self-regulating method of on-line rolling plan of the present invention is that described index condition comprises at least 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, among slab length, slab thickness, slab number and the de-scaling water parameter one or multinomial; Described rules clauses and subclauses comprise lateral pressure amount requirement, T parison width surplus, jumping with wide milimeter number requirement, width requires and temperature is jumped among requiring one or multinomial.
A kind of preferable 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 that is used 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, then calculates finished width correction amount W, makes revised target finished width satisfy following the requirement:
CWn=CW+ Δ W; Wherein, Δ W=BWmin-CW-Wlim, CWn are revised target finished width, and CW is a finished width, and BWmin is width of plate slab or T parison microcephaly's a 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 describedly being used to adjust step S100 rolling scaduled and that be handed down to process control level and comprising following action:
If T parison width surplus transfinites; The difference of the width of plate slab BWmax of T parison major part and T parison microcephaly's width of plate slab surpasses limits value BWlim; Then calculate width of plate slab correction amount BW; Control slab cutting machine excises correction to the width of plate slab of T parison major part, makes revised T parison major part width B Wmaxn satisfy following the 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, be handed down to process control level again.
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 the dynamic preanalysis self-regulating method of described on-line rolling plan also comprises following steps:
S120) step at critical process reference mark is set in rolling scaduled;
S600) after rolling scaduled execution, the plan control parameter at comparison critical process reference mark and the actual measurement parameter of planning execution are judged the step of planning accordance.
A kind of further improved technical scheme of the dynamic preanalysis self-regulating method of on-line rolling plan of the present invention is characterized in that the dynamic preanalysis self-regulating method of described on-line rolling plan also comprises following steps:
S140) the rolling scaduled step of carrying out back acquisition quality information, described quality information comprise among production time, band grade of steel, tapping mark, specification, layer alias, defective title, the precision one or multinomial at least;
S160) with the step of quality information real time down to process control level;
S180) analyze quality information, the step of quality information being added to historical quality information database;
S400) start the step that quality feedback information is compared, this step comprises following action:
S420) according to rolling scaduled kind, the step of retrieval quality information history data generates quality alert if table;
S440) the rolling scaduled and quality alert if table of comparison then changes step S460 generation quality blockade information if rolling scaduled product satisfies the quality alert if, otherwise, go to the calculating that step S500 carries out setting value;
S460) generate the quality warning and block information and warning message, change 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 efficient of plan audit, also avoided manual examination and verification to exist the omission erroneous judgement disconnected, can not promptly and accurately find to plan the problem of defective.
2) start rolling scaduled audit inspection automatically at process control level, directly show the output judged result, improve accuracy and promptness at human-computer interaction interface.
3) the automatic dynamic feedback that realizes quality information in computer system improves feedback efficiency, avoids quality information feedback to lag behind, and causes the quality problems of bulk article easily.
4) the critical process reference mark is estimated and the combining of online feedback quality information and rolling scaduled dynamic and analysis, and has improved the work efficiency of production management and process control greatly, has improved the automatization level of hot rolling line.
5) realized the controlled variable lateral pressure amount and the T parison information of rolling scaduled key are examined and the Automatic Optimal adjustment automatically, improved work efficiency and product quality greatly.
Description of drawings
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 technique scheme of the present invention better, describe in detail further below in conjunction with accompanying drawing and embodiment.
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; Place the 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, technology and model parameter adjusting module 250, rolling technological parameter set-up and calculated module 260 and L2 man-machine interactive interface 200, production control level L3 is connected to production management level L4 through rolling scaduled control module 310.The Rolling Production plan that production management 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 is connected to basic automatization level L1 through rolling technological parameter set-up and calculated module 260, and the control rolling machinery is carried out the Rolling Production plan according to the technological parameter of setting.In the described embodiment of 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 through rolling scaduled receiver module 210.Rolling procedure administration module 320 is connected to plan-rule parameter evaluation module 240 with rolling scaduled parsing module 220 through plan audit condition generation module 230.Plan-rule parameter evaluation module 240 connects rolling technological parameter set-up and calculated module 260 through technology and model parameter adjusting module 250; Basic automatization level L2 feedback is connected to technology and model parameter adjusting module 250; The actual achievement Value Data that will be used for process evaluation feeds back to process control level L2, realizes the real-time adjustment of technology and model parameter.
In the embodiment of the dynamic preanalysis self-adjusting system of on-line rolling plan of the present invention shown in Figure 1; Production control level L3 is provided with key control parameter generation module 330; Process control level L2 is provided with key control parameter evaluation module 270; Rolling scaduled control module 310 connects key control parameter evaluation module 270 through key control parameter generation module 330; Key control parameter evaluation module 270 is connected to plan-rule parameter evaluation module 240; Basic automatization level L1 feedback is connected to key control parameter evaluation module 270, and the actual achievement Value Data that will be used for process evaluation feeds back to key control parameter evaluation module 270, realizes 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 Figure 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 specification table according to the designed capacity of production equipment and the specification of product; When a certain index transfinites in 240 discoveries of plan-rule parameter evaluation module are rolling scaduled; The technological limits specification information of this index of technological limits specification table output that provides according to technological limits specification management module 235 is through 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 Figure 1; Process control level L2 is provided with quality information database 280, quality alert if generation module 295 and quality feedback information comparing module 290; Quality information acquisition processing module 340 and quality alert if generation module 295 link quality information databases 280, quality alert if generation module 295 is connected to plan-rule parameter evaluation module 240 through quality feedback information comparing module 290.
The treatment scheme that is used for the dynamic preanalysis self-adjusting system of above-mentioned on-line rolling plan provided by the invention is as shown in Figure 2, comprises following steps:
S100) be used to adjust rolling scaduled and be handed down to the step of process control level; This step is carried out by the computing machine of production control level L3; Be used to receive the rolling scaduled of production management level L4 establishment, adjust and be transmitted to process control level L2 according to the requirement of production control level L3.
S200) process control level L2 reception is rolling scaduled:
An embodiment who starts the step of technology preanalysis audit realizes through rolling scaduled start-stop sign is set; Production control level L3 issuing to process control level L2 rolling scaduled in; Issue rolling scaduled start-stop zone bit and give L2, independently rolling scaduled so that L2 can discern.After L2 receives rolling scaduled " end " zone bit, start the preliminary hearing kernel function automatically.
S220) be used for resolving according to the index condition rolling scaduled, compare rolling scaduled and rolling procedure, screening needs the rules clauses and subclauses of audit, and the step of audit condition table is planned in generation:
Rolling scaduled on-line automatic dynamic preanalysis function is when L2 receives rolling scaduled that L3 issues, and starts the preanalysis function automatically.It does not receive the influence of rolling scaduled adjustment, and the rolling scaduled preanalysis function that just starts automatically that newly receives is arranged at every turn, resolves rolling scaduled according to the index condition.
This step is set up different index conditions according to the steel rolling operation zone, resolves rolling scaduled according to the index condition.Described index condition comprises at least 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, among slab length, slab thickness, slab number and the de-scaling water parameter one or multinomial.An embodiment of subregion index condition is referring to following index condition table:
Index condition table
| Plate adds the index condition | Roughing index condition | Finish rolling index condition | Batch the index condition |
| The tapping mark | The tapping mark | The tapping mark | The tapping mark |
| Contract number | Contract number | Contract number | Contract number |
| The user | The user | The user | The 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 |
| The roughing temperature | The roughing temperature | The roughing temperature | The 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 | The contract width | The contract width |
| The slab tail is wide | The 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 |
The 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.Described rules clauses and subclauses commonly used comprise that lateral pressure amount requires, T parison width surplus, with wide milimeter number require, width jumps and requires and temperature jump requirement, the embodiment of rules clauses and subclauses is following:
A, lateral pressure amount require:
1) width of plate slab-finished width >=0mm;
2) different slab thicknesses, hardness group and maximum lateral pressure amount that finished width allowed require to see the following form: the 250mm thickness slab
| The hardness group | HG≤3 | HG≥4 |
| Maximum lateral pressure amount | 120 | 100 |
The 230mm thickness slab
Annotate: lateral pressure amount=width of plate slab-finished width
The regulation of B, T parison width surplus
For T template base, its width surplus requires as follows:
1) little head width-finished width >=0mm;
2) big head width-little head width≤100mm.
C, require with wide milimeter number:
Phase adjacent band steel target width differs 5mm and is regarded as same width with interior, with the i.e. length overall of an inside the plan rolling same width specifications band steel of hot rolling of wide milimeter number.
" plan combined length " back increases " plan is with wide length " in " the rolling scaduled complete list " of production control level L3, on the L3 man-machine interactive interface, shows.
D, width jump and require:
Same inside the plan, by from being too narrow to wide direction: back piece steel target width-preceding steel target width≤200mm, leniently arrive narrow direction: back piece steel target width-preceding steel target width≤10mm.(find out the maximum band grade of steel of inside the plan width, target width compared) by band steel serial number
E, temperature jump requirement comprise
The slab charging temperature jumps: adjacent slab charging temperature is poor≤| 250|.L3 issues the charging temperature calculated value and gives L2, by L2 the temperature of the two blocks of steel in front and back is compared.
The 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 ℃.
The strip finishing temperature desired value is jumped: adjacent two strip finishing temperature target value differences≤| 60|.
This step according to parameters such as rolling scaduled related product variety, specification and technological requirements, filters out the rules clauses and subclauses of the needs audit that comprises in the rolling procedure according to the rolling scaduled and rolling procedure of above-mentioned index condition comparison, generates plan audit condition table.Described plan audit condition table is exactly the set with current rolling scaduled relevant rules clauses and subclauses.
S240) be used for comparing the rules clauses and subclauses that the condition table is examined in said plan, judge the rolling scaduled rules requirement of whether satisfying,, then change step S500 if the technological parameter in the said plan audit condition table satisfies the rules requirement, otherwise execution in step step S260:
This step is calculated the relevant project indicator according to the rules clauses and subclauses in the plan audit condition table, judges whether the technological parameter in the plan audit condition table satisfies the rules requirement.The example of concrete technological parameter index is referring to following embodiment.
S260) sign that transfinites in violation of rules and regulations is set,, shows the step of technological limits specification prompting through man-machine interactive interface output alarm information:
When detecting a certain index and not meeting the 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 big " etc., the technological limits specification table that provides according to technological limits specification management module 235 simultaneously shows the technological limits specification information of this index.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) judge the type that transfinites in violation of rules and regulations,, then return step S100, carry out the rolling scaduled operation of adjustment if need adjustment rolling scaduled:
This step if project relates to rolling scaduled change in violation of rules and regulations, is then returned step S100 according to the corresponding processing mode of type selecting that transfinites in violation of rules and regulations, and is rolling scaduled by production control level L3 adjustment.A rolling scaduled self-adjusting embodiment is the rolling scaduled adjustment that T parison width surplus transfinites.At this moment, the difference of the width of plate slab BWmax of T parison major part and T parison 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 is red in the rolling scaduled screen displayed of L2 man-machine interactive interface, L2 with rolling scaduled inexecutable information feedback to L3, by L3 execution in step S100; Comprise following action: at first; Calculate width of plate slab correction amount BW, control slab cutting machine excises correction to the width of plate slab of T parison major part, makes revised T parison major part width B Wmaxn satisfy following the requirement:
BWmaxn=BWmax-Δ BW, wherein Δ BW=BWmax-BWmin-BWlim;
Then, rolling scaduled by production control level L3 according to the adjustment of the revised width of plate slab of excision, be handed down to process control level L2 again, by L2 according to the new rolling scaduled set-up and calculated that is rolled technological parameter.In the present embodiment, rolling technological parameter comprises roll gap and roll-force etc. at least, and L1 receives new processing parameter setting value, and control mechanical equipment of steel rolling (fixed-width side press and vertical miller) is carried out steel rolling operation by revised width value control roll gap and roll-force.
S320) if need adjusting process and model parameter, then 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 that transfinites in violation of rules and regulations; If project relates to adjusting process and model parameter in violation of rules and regulations; Then go to step S340, carry out the technological parameter adjustment by process control level L2, otherwise; Skip to step S500, carry out the calculating of setting value by the technologist with reference to the overload alarm information.
S340) step of adjusting process and model parameter:
Realize that technology and model parameter self-adjusting embodiment are the self-adjustings that lateral pressure amount transfinites for one of the dynamic preanalysis self-regulating method of on-line rolling plan of the present invention.At this moment, lateral pressure amount=BWmin-CW surpasses lateral pressure amount limits value Wlim, and process control level L2 automatically performs step S340, calculates finished width correction amount W, makes revised target finished width satisfy following the requirement:
CWn=CW+ Δ W; Wherein, Δ W=BWmin-CW-Wlim, CWn are revised target finished width, and CW is a finished width, and BWmin is width of plate slab or T parison microcephaly's a width of plate slab.
S500) according to the setting value of steel rolling Model Calculation technological parameter and be issued to the step of basic automatization level L1:
This step is accomplished the set-up and calculated task of parameters of technique process, and for example, L2 is according to rolling scaduled determined slab parameter and target finished width, according to setup parameters such as the roll-force of steel rolling Model Calculation, roll gap, is issued to basic automatization level L1.
S520) setting value of basic automatization level L1 receiving process parameter, the control steel rolling equipment is carried out rolling scaduled step:
This step by setting value control roll gap, the roll-force that L2 issues, is carried out steel rolling operation by basic automatization level L1 control mechanical equipment of steel rolling (for example fixed-width side press and vertical miller) operation, produces qualified product according to rolling scaduled.
In the embodiment of the dynamic preanalysis self-regulating method of on-line rolling plan shown in Figure 2, also comprise following steps:
S120) step at critical process reference mark is set in rolling scaduled:
For the emphasis steel grade; By the key control parameter generation module 330 of L3 with the band steel information on rolling scaduled and rolling procedure administration module 320 provide the rolling procedure table compare; Generate the key control parameter table according to the content of coupling 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 of described critical process reference mark and control requirement is shown in following tabulation of heating process critical process reference mark and the tabulation of operation of rolling critical process reference mark, and wherein related index condition is referring to the index condition table in the foregoing description.
The tabulation of heating process critical process reference mark
The tabulation of operation of rolling critical process reference mark
S600) after rolling scaduled execution, the plan control parameter at comparison critical process reference mark and the actual measurement parameter of planning execution, judge the step of planning accordance:
L2 carries out the accordance evaluation in the intact back of this piece belt steel rolling to the actual conditions at critical process reference mark, to the undesirable information indicating that carries out, estimates each zone that the content of notifying is presented at man-machine interactive interface and presets in the warning hurdle that is provided with on the picture.
In existing system; After every rolling scaduled completion, production control level L3 gathers the product quality information of rolling completion, and these quality informations that collect are delivered to production management level L4; Can not directly feed back to process control level L2; This has just caused the product quality information feedback to lag behind, and relevant information can not in time be provided 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 the quality information feedback function; Product quality information to the rolling completion that collects; Utilize and realize feedback automatically between L3 and the L2 two-stage system, remind the technological operation personnel in time to adjust, avoid in batches and the generation of repeated defects; The process flow diagram of quality information feedback process is as shown in Figure 3, comprises following steps:
S140) the rolling scaduled step of carrying out back acquisition quality information, described quality information comprise among production time, band grade of steel, tapping mark, specification, layer alias, defective title, the precision one or multinomial at least;
S160) with the step of quality information real time down to process control level L2;
S180) analyze quality information, the step of quality information being added to the quality information database:
The quality information database realizes subregion (roughing, finish rolling, layer are cold), by the other Information Statistics of layer, according to area defects type categorization log history qualitative data, block the foundation of information, the real-time update that suppresses information to ensure the quality of products as generating quality.At the man-machine interactive interface of L3 and L2, the subregion carries out that layer does not link and information shows, set up heating, roughing, finish rolling, layer cold, batch the preanalysis picture.
A part of embodiment by the area defects type categorization comprises:
The heating process related defects: the M shape sticks up skin, sideline, burr, red iron sheet, finishing temperature blockade;
Roughing zone related defects: burr, sideline, scuffing, width, black seal;
Finish rolling zone related defects: thickness, width, roll brokenly, limit damage, roll marks, scuffing, iron scale, sticking iron, iron sheet ash, black seal, finishing temperature, section;
The cold process related defects of layer: coiling temperature blocks, scratches;
Batch regional related defects: turriform, staggered floor, limit damage, the limit of overflowing, greasy dirt volume.
S400) start the step that quality feedback information is compared, this step is started in the process of carrying out rolling scaduled parameter evaluation by plan-rule parameter evaluation module automatically, and this step comprises following action:
S420) according to rolling scaduled kind, the step of retrieval quality information history data generates quality alert if table;
S440) the rolling scaduled and quality alert if table of comparison then changes step S460 generation quality blockade information if rolling scaduled product satisfies the quality alert if, otherwise, go to the calculating that step S500 carries out setting value;
S460) generate the quality warning and block information and warning message, change step S240 and proceed rolling scaduled performance analysis according to quality feedback information.
Information is blocked in the quality warning and warning message is to be presented at L3 man-machine interactive interface or L2 man-machine interactive interface in real time according to concrete rolling scaduled related control hierarchy.Embodiment at production control level L3 display quality warning blockade information and warning message is that the steel defective is added up and the information indicating function with heat (batch) number: in L3, directly the warehouse-in slab is carried out information contrast and judgement; When same heat (batch) number (CAST number) steel defect level >=2 piece; In the L3 man-machine interactive interface, show " having blocked 2 " information, increase by two hurdles " CAST number ", " blocking the piece number " with the number of heat (batch) number rolling piece-steel at warehouse-in slab consolidated statement with the heat (batch) number steel.
Another embodiment that quality report to the police to be blocked information and warning message is new spec and amount of rolling few, rolling interval time of a long specification information prompt facility: for rolling, amount of rolling first less than 5, the layer of rolling interval time long (greater than 10 days) is other; Display reminding information " new spec ", " amount of rolling is few ", " rolling before n days " etc. remind the operating procedure operating personnel to note variety variations.
Embodiment at process control level L2 display quality warning blockade information and warning message is the low information indicating of precision: system compares by layer alias and historical production actual achievement rolling scaduled; Generate the 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, then show the information of " * * precision is low " at the L2 man-machine interactive interface.
The precision index that some are concrete and the embodiment of requirement thereof are following:
| Non-silicon steel: | Silicon steel (the 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%, |
| The convexity precision (± 20um)＜80% | The convexity precision (± 20um)＜70% |
| Thickness and precision (± 30um)＜90%, | Thickness and precision (± 30um)＜80%, |
Above-mentioned alert if be " or " relation, the information that satisfies alert if is all pointed out.
Another important embodiment that information and warning message are blocked in the quality warning is the steel scrap information indicating: the last rolling actual achievement is retrieved by the not identical principle of layer by system when being rolled plan preanalysis; If it is the last rolling with the other product generation of layer steel scrap; Then carry out information indicating; And, increase the simple analysis of steel scrap reason, for example to the refinement of steel scrap reason; The steel scrap that 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.The steel scrap reason can encode, makes the drop-down menu form and supplies operating personnel to occur selecting behind the steel scrap at every turn.
Those of ordinary skill in the art will be appreciated that; Above embodiment is used for explaining technical scheme of the present invention; Cited data among the embodiment only are used to technical scheme of the present invention is described, and are not to be used as qualification of the present invention; Any based on connotation of the present invention to variation, modification that the above embodiment did, all will drop in the protection domain of claim of the present invention.
Claims (10)
1. dynamic preanalysis self-adjusting system of on-line rolling plan; Place the production control level (L3) and the process control level (L2) of 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), technology and model parameter adjusting module (250), rolling technological parameter set-up and calculated module (260) and L2 man-machine interactive interface (200); Described production control level (L3) is connected to production management level (L4) through rolling scaduled control module (310), and described process control level (L2) is connected to basic automatization level (L1) through rolling technological parameter set-up and calculated module (260), 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) through 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) through plan audit condition generation module (230);
Described plan-rule parameter evaluation module (240) connects rolling technological parameter set-up and calculated module (260) through technology and model parameter adjusting module (250), and described basic automatization level (L1) feedback is connected to technology and model parameter adjusting module (250).
2. the dynamic preanalysis self-adjusting system of the described on-line rolling plan of claim 1 is characterized in that described production control level (L3) is provided with key control parameter generation module (330); Described process control level (L2) is provided with key control parameter evaluation module (270); Described rolling scaduled control module (310) connects key control parameter evaluation module (270) through key control parameter generation module (330); Key control parameter evaluation module (270) is connected to described plan-rule parameter evaluation module (240), and described basic automatization level (L1) feedback is connected to key control parameter evaluation module (270).
3. the dynamic preanalysis self-adjusting system of the described on-line rolling plan of claim 1 is characterized in that described process control level (L2) comprises technological limits specification management module (235), and 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 described on-line rolling plan of arbitrary claim is characterized in that described process control level (L2) is provided with quality information database (280), quality alert if generation module (295) and quality feedback information comparing module (290) in the claim 1 to 3; Described quality information acquisition processing module (340) and quality alert if generation module (295) link quality information database (280), described quality alert if generation module (295) is connected to described plan-rule parameter evaluation module (240) through quality feedback information comparing module (290).
5. the dynamic preanalysis self-regulating method of on-line rolling plan is used for the dynamic preanalysis self-adjusting system of above-mentioned on-line rolling plan, comprising:
S100) be used to adjust rolling scaduled and be handed down to the step of process control level;
S200) the process control level reception is rolling scaduled, starts the step of technology preanalysis audit;
S500) according to the setting value of steel rolling Model Calculation technological parameter and be issued to the step of basic automatization level;
S520) setting value of basic automatization level receiving process parameter, the control steel rolling equipment is carried out rolling scaduled step;
It is characterized in that the dynamic preanalysis self-regulating method of described on-line rolling plan also comprises following steps:
S220) be used for resolving according to the index condition rolling scaduled, compare rolling scaduled and rolling procedure, screening needs the rules clauses and subclauses of audit, and the step of audit condition table is planned in generation;
S240) be used for comparing the rules clauses and subclauses that the condition table is examined in said plan, judge the rolling scaduled rules requirement of whether satisfying,, then change step S500 if the technological parameter in the said plan audit condition table satisfies the rules requirement, otherwise execution in step step S260;
S260) sign that transfinites in violation of rules and regulations is set,, shows the step of technological limits specification prompting through man-machine interactive interface output alarm information;
S300) judge the type that transfinites in violation of rules and regulations,, then return step S100, carry out the rolling scaduled operation of adjustment if need adjustment rolling scaduled;
S320) if need adjusting process and model parameter, then go to step S340, otherwise skip to the calculating that step S500 carries out setting value;
S340) be used for the step of adjusting process and model parameter.
6. the dynamic preanalysis self-regulating method of on-line rolling plan according to claim 5 is characterized in that described index condition comprises at least 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, among slab length, slab thickness, slab number and the de-scaling water parameter one or multinomial; Described rules clauses and subclauses comprise lateral pressure amount requirement, T parison width surplus, jumping with wide milimeter number requirement, width requires and temperature is jumped among requiring one or multinomial.
7. the dynamic preanalysis self-regulating method of on-line rolling plan according to claim 5 is characterized in that the described step S340 that is used for adjusting process and model parameter comprises following action:
If lateral pressure amount transfinites, then calculate finished width correction amount W, the revise goal finished width is:
CWn=CW+ Δ W; Wherein, lateral pressure amount=BWmin-CW, CWn are revised target finished width, and CW is a finished width, and Δ W=BWmin-CW-Wlim, BWmin are width of plate slab or T parison microcephaly's width of plate slab, and Wlim is the higher limit of lateral pressure amount.
8. the dynamic preanalysis self-regulating method of on-line rolling plan according to claim 5 is characterized in that describedly being used to adjust step S100 rolling scaduled and that be handed down to process control level and comprising following action:
If T parison width surplus transfinites; The difference of the width of plate slab BWmax of T parison major part and T parison microcephaly's width of plate slab surpasses limits value BWlim; Then calculate width of plate slab correction amount BW; Control slab cutting machine excises correction to the width of plate slab of T parison major part, makes revised T parison major part width B Wmaxn satisfy following the requirement: BWmaxn=BWmax-Δ BW, wherein Δ BW=BWmax-BWmin-BWlim;
Rolling scaduled according to the revised width of plate slab adjustment of excision, be handed down to process control level again.
9. the dynamic preanalysis self-regulating method of the described on-line rolling plan of arbitrary claim in the claim 5 to 8 is characterized in that the dynamic preanalysis self-regulating method of described on-line rolling plan also comprises following steps:
S120) step at critical process reference mark is set in rolling scaduled;
S600) after rolling scaduled execution, the plan control parameter at comparison critical process reference mark and the actual measurement parameter of planning execution are judged the step of planning accordance.
10. the dynamic preanalysis self-regulating method of the described on-line rolling plan of arbitrary claim in the claim 5 to 8 is characterized in that the dynamic preanalysis self-regulating method of described on-line rolling plan also comprises following steps:
S140) the rolling scaduled step of carrying out back acquisition quality information, described quality information comprise among production time, band grade of steel, tapping mark, specification, layer alias, defective title, the precision one or multinomial at least;
S160) with the step of quality information real time down to process control level;
S180) analyze quality information, the step of quality information being added to historical quality information database;
S400) start the step that quality feedback information is compared, this step comprises following action:
S420) according to rolling scaduled kind, the step of retrieval quality information history data generates quality alert if table;
S440) the rolling scaduled and quality alert if table of comparison then changes step S460 generation quality blockade information if rolling scaduled product satisfies the quality alert if, otherwise, go to the calculating that step S500 carries out setting value;
S460) generate quality warning blockade information and warning message, commentaries on classics step S240 is rolled according to quality feedback information and plans dynamically and analysis.
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