WO2013107129A1 - 一种冷轧电镀锌机组钢卷排序方法及系统 - Google Patents
一种冷轧电镀锌机组钢卷排序方法及系统 Download PDFInfo
- Publication number
- WO2013107129A1 WO2013107129A1 PCT/CN2012/074839 CN2012074839W WO2013107129A1 WO 2013107129 A1 WO2013107129 A1 WO 2013107129A1 CN 2012074839 W CN2012074839 W CN 2012074839W WO 2013107129 A1 WO2013107129 A1 WO 2013107129A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steel coil
- processing
- steel
- coil
- coils
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 582
- 239000010959 steel Substances 0.000 title claims abstract description 582
- 238000005246 galvanizing Methods 0.000 title claims abstract description 48
- 238000012163 sequencing technique Methods 0.000 title abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 135
- 238000004519 manufacturing process Methods 0.000 claims abstract description 115
- 238000012545 processing Methods 0.000 claims description 222
- 238000012937 correction Methods 0.000 claims description 86
- 238000012805 post-processing Methods 0.000 claims description 81
- 230000008569 process Effects 0.000 claims description 54
- 230000001186 cumulative effect Effects 0.000 claims description 37
- 238000011156 evaluation Methods 0.000 claims description 26
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 17
- 229910052725 zinc Inorganic materials 0.000 claims description 15
- 239000011701 zinc Substances 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 14
- 230000007547 defect Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 238000009713 electroplating Methods 0.000 claims description 8
- 238000010327 methods by industry Methods 0.000 claims description 6
- 230000006872 improvement Effects 0.000 claims description 5
- 238000011161 development Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000013439 planning Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000005243 fluidization Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 claims description 2
- 238000010187 selection method Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- 238000012958 reprocessing Methods 0.000 claims 1
- 239000007769 metal material Substances 0.000 abstract description 5
- 239000000047 product Substances 0.000 description 7
- 238000005457 optimization Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012384 transportation and delivery Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/04—Electroplating with moving electrodes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41865—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by job scheduling, process planning, material flow
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/12—Process control or regulation
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
- C25D7/0614—Strips or foils
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Definitions
- the invention belongs to the technical field of metal material processing information, and relates to an automation technology, in particular to a steel coil sorting method and system for a cold-rolled electrogalvanizing unit.
- the problem of steel coil sorting of electro-galvanizing units of metal materials is the main content of metallurgical enterprise production management.
- the quality of steel coil sorting is directly related to equipment stability and operating efficiency of electrogalvanized units, product quality and production cost.
- the raw materials used for electro-galvanized steel strips are mainly steel coils after annealing. After the acid-rolled steel coils are annealed, in order to achieve the surface characteristics of steel coils such as rust prevention and appearance, it is often necessary to apply a uniform coating on the steel coils.
- the layer metal zinc and the electro-galvanizing unit process the steel coil by the coating, post-treatment and the like for the purpose of processing.
- the main processing process of electro-galvanizing (as shown in Figure 1) is to open the steel coil and weld it into a continuous strip. After the surface of the strip is cleaned, it enters the galvanizing tank and is electrolyzed to form a uniform surface on the steel strip.
- the steel strip needs to pass the post-treatment process.
- Common post-treatment methods include passivation, phosphating, fingerprint resistance, etc. After being cleaned, oiled, trimmed, etc., it is cut into coils by slitting.
- the production sequence of the electro-galvanizing unit coil is to make the steel coil transition as smooth as possible under the process constraints such as specification, zinc layer thickness and post-treatment method, so as to improve the unit response speed, ensure product quality and fully utilize the unit's production capacity.
- the coil is welded into a continuous strip. The thickness of the two adjacent coils jumps and the width jumps more, which makes the strip more likely to crack, and also causes the support roll.
- the two adjacent steel coils have different post-treatment methods, and the unit needs to replace the post-treatment liquid. If the latter steel coil is processed in accordance with the corresponding post-treatment method, After the previous coil is processed, the pulling speed of the equipment strip needs to be adjusted or even stopped. At this time, the latter coil will be stopped in the unit, and the equipment adjustment process will reduce the quality of the coil.
- the production sequence of the electro-galvanized steel coils is manually completed. Due to the complicated constraints of electroplating zinc production process, manual production sequencing has great difficulty, and the number of steel coils involved in actual production is huge.
- the manual production is sorted within a reasonable time. It is difficult to select the coils in the warehouse in real time and make steel coils.
- the processing sequence ensures a smooth transition of the width and thickness of adjacent steel coils, and prepares a steel coil processing sequence that guarantees product quality, increases production capacity, ensures stable operation of the unit, and has an overall overall level.
- the present invention provides a method and system for sorting steel coils of a cold-rolled electrogalvanizing unit, To ensure the smooth transition of the width and thickness of adjacent steel coils, to ensure product quality, increase production capacity, and ensure the stable operation of the unit.
- a cold rolling electrogalvanizing unit steel coil sorting method comprises the following steps: Step 1: Describe the process engineering, determine the constraints of the process, and describe according to the following model:
- Step 1-1 The steel coil production model of the electrogalvanizing unit, the objective function of the model is:
- A represents the weight of the production switching (ie, post-processing, width, thickness) on the stability of the production system
- A represents the weight of the steel coil selection on the stability of the production system
- System stability defect penalty caused by switching after post-processing mode indicates system stability defect penalty caused by width switching after processing steel coil i; indicating that steel coil j is switched after thickness after steel coil i
- ⁇ indicates the current steel coil order selection of steel coils for processing the impact on the stability of the production system
- decision variables represent the continuous electro-galvanizing process sequence, between the steel coil i and the steel coil j Adjacent relationship, when the steel coil i is processed before the steel coil j, the Xij value is 1, otherwise the Xij value is 0; the decision variable ⁇ indicates whether the continuous electrogalvanizing processing sequence selects the steel coil i for processing, when the steel coil i is selected for processing, the value is 1, otherwise it is 0
- Constraints on the steel coil production model of the electrogalvanizing unit including feasibility constraints and their own process and operational constraints:
- N electrogalvanized
- the set of steel coils available in the former library, constraints (2) and (3) give the logical relationship between the decision variables Xij and ⁇ ; the constraints (4) are used to prevent the coil process from being interrupted; the constraint (5) is the decision variable 3 ⁇ 4 and The range of values of ⁇ ;
- the electro-galvanizing unit has its own process and operating constraints when processing coils:
- Post-processing set batch constraint including the cumulative steel coil processing weight used to determine the processing of the coil in the steel coil processing sequence after the completion of processing of any steel coil, the formula is:
- L represents the cumulative continuous processing weight limit of the steel coil with a post-processing code of / ⁇ ; represents the post-processing mode code of the steel coil ; indicates the cumulative processing weight of the steel coil after processing the steel coil j and the post-processing method in the steel coil processing sequence; ⁇ indicates the cumulative processing weight limit of the steel coil after the post-processing code P; 1 ; Zj is the decision variable, when the steel coil j is the same as the post-treatment of the steel coil processed before the steel coil j, then 0, otherwise 1;
- L W is the lower limit of the width jump width in the processing order of the electrogalvanized steel coil
- i is the processing order of the electrogalvanized steel coil
- L T is the lower limit of the thickness jump amplitude in the processing sequence of the electrogalvanized steel coil
- U 1 is in the processing sequence of the electrogalvanized steel coil
- the upper limit of the thickness jump; ; is the thickness of the steel coil i, which is the thickness of the steel coil j
- Step 1-2 According to the amount of steel coil in the pre-galvanized zinc warehouse, the expected arrival of the steel coil in the galvanized former unit plan and the current The processing status of the electro-galvanizing unit, the upper and lower limits of the processing capacity of the electro-galvanizing unit in the steel coil processing plan, the upper and lower limits of the processing capacity of the processing liquid after the post-treatment method, the width jump, the thickness jump range, and the initialization of the electro-galvanizing unit steel coil Production system parameters, the formula is as follows:
- d is the penalty for the effect of the post-treatment fluidization of the post-processing treatment on the stability of the production system.
- ⁇ is the maximum width jump allowed
- / ⁇ is the penalty for the influence of the adjacent steel coil width switching on the stability of the production system
- a w is the thickness of the previous processed steel coil is less than ⁇ Unit width jump penalty for cases where the width jump does not exceed;
- « 2 W is the unit width jump penalty for the case where the thickness of the previous processed steel coil is not less than ⁇ , and the width jump is not exceeded.
- the thickness of the previous processed steel coil is less than ⁇ the width jump is not exceeded.
- the condition or the thickness of the previous processed steel coil is not less than the unit width jump penalty of the case where the width jump does not exceed; ⁇ the thickness boundary condition value in the penalty process for calculating the influence of the width switching on the stability of the production system; Calculate the width boundary condition value in the penalty process resulting from the effect of width switching on the stability of the production system;
- Step 2 According to the current state of the electro-galvanizing unit, the steel coil is selected according to the current unit status and the library. For the production situation of the reserve and the former unit, select the steel coil to be processed by the electro-galvanizing unit: First, determine which post-treatment liquid fc is currently used by the unit, and calculate the cumulative processing coil volume W/ of the post-treatment liquid, and post-process according to the system setting. Liquid rated processing capacity range
- Step 2.1 judging the current processing condition of the unit , determining the width of the last steel coil in the previous production sequence of the current production sequence, that is, the upper limit of the available width of the current processing roller W A ;
- Step 2.2 According to the processing situation of the coiled steel unit in the coil volume of the steel and the feed line of the previous feeding line, determine the amount of steel coil available during the current production period, and classify the steel coil according to the required post-treatment method. Requires post-processing for processing, the cumulative tonnage of available steel coils with a width not greater than W A ! ⁇ , and make the following decision:
- the steel coils with a width of not more than W A are selected for processing by post-processing.
- the selection method is:
- Step 2.2.1 If there is no steel coil with a width greater than or equal to W A + L W in the steel coil set, the pool is started from the narrowest steel coil until the new steel coil is added, which will result in the current planned cumulative pool volume. Exceeded ⁇ / - W k p
- Step 2.2.2 If there is a steel coil with a width greater than or equal to W A + L W in the steel coil set, calculate the cumulative tonnage of the steel coil with a width not less than W A + L W if W ' ⁇ f / - W /, from The widest steel coil with a width of not less than W A + L W starts to be collected, until the new steel coil is added, which will result in the current planned cumulative volume of steel coils exceeding the volume, and the steel coil with a width of not less than W A + L W will be collected.
- the narrowest steel coil in the post-treatment mode g is collected from the narrowest steel coil until the accumulated volume of the steel coil exceeds t/ stop;
- Step 2-1 Determine the current machining condition of the unit, and determine the width of the last steel coil before the current plan is planned, that is, the upper limit of the available width of the current processing roll W A ;
- Step 2-2 According to the processing situation of the electro-galvanized unit in the coil volume of the coiled steel and the production line of the previous feeding line, determine the amount of steel coils available during the current planning period, and classify the coils according to the required post-treatment methods. The calculation requires the post-processing method to process, the width of the available steel coils with a width not greater than W A ! ⁇ , and make the following decision:
- Step 2-2-1 If there is no width greater than or equal to W A + L W in the steel coil set Steel coils, starting from the narrowest steel coil, until the new steel coil will lead to the current planned cumulative pool volume exceeds t/ ;
- Step 2-2-2 If there is a steel coil with a width greater than or equal to W A + L W in the steel coil set, calculate the cumulative tonnage of the steel coil with a width not less than W A + L W if W ' ⁇ f /, from the width The widest steel coil not less than W A + L W starts to be collected until the new steel coil is added, which will result in the current planned cumulative volume of steel coils exceeding t/ ; otherwise, the steel coil with a width not less than W A + L W All pools are collected and closed from the narrowest steel coil with a width less than W A + L W until the current planned cumulative pool volume exceeds t/, stop; Step 2-2-3: If the selected steel coil total If the weight is not satisfied, the minimum volume of steel coil processing plan is selected.
- the narrowest steel coil in the post-treatment mode g is collected from the narrowest steel coil until the accumulated volume of the steel coil exceeds t/ stop;
- Step 3 Set the initial steel coil processing sequence of the electro-galvanizing unit: Classify the steel coils in the collection, and form a cluster with the steel coils in the post-treatment mode.
- Step 3.1 Initialize the current post-processing mode k to be the smallest post-processing code in the pool steel coil;
- Step 3.2 If all the post-processing steel coils have been sorted, the initial coil processing sequence has been obtained and the result is output; otherwise, skip to step 3.3;
- Step 3.3 Sort the post-processing steel coils from wide to narrow, and classify the post-processing steel coils according to the width to form g steel coil assemblies ⁇ ⁇ , k2 , ..., kg ;
- Step 3.4 Sorting the steel coil sets ⁇ , ..., the medium steel coils separately, forming two steel coil sorting sequences, wherein the first sequence obtaining method: sorting the thick and thin steel coils with odd numbers, For steel coils with an even number, sort from thin to thick; second sequence acquisition method: sort the thin coils from odd to thick for odd-numbered steel coils, sort from thick to thin for even-numbered steel coils, Comparing the two sequences, the order of the coils with the smallest overall stability defect is set to the initial coil order of the electrogalvanizing unit.
- Step 4 Correct the processing sequence of the coil of the electrogalvanizing unit in real time by:
- Step 4.1 Initialize the parameters of the system stability correction method, set the current electrogalvanizing unit coil processing order ⁇ to S 1 ; Obtain the current selected steel coil set ( ⁇ and the currently available steel coil set C4, where, ( ⁇ It is a collection of all steel coils that have been included in the current processing order of steel coils for electrogalvanizing units. C4 is all available in the warehouse or based on the processing conditions of the former units, but it is not included in the current processing order of the coils of electrogalvanized units.
- Step 4.2 Calculate the stability evaluation index value ( ⁇ ) of the current processing order of the electroplated zinc unit coils ⁇ ;
- Step 4.3 Determine the current candidate set for the processing order of the coils of the electrogalvanized unit ⁇ ⁇
- the method for obtaining the order of the coils is:
- Insert steel coil Under the premise of not infringing the production capacity limit constraint of the unit and the batch processing batch constraint, the candidate correction coil processing sequence is obtained by inserting a new steel coil in the current coil processing sequence, and the steel is newly added. Volume A should be in the steel coil processing sequence to meet the system setting process constraints (2) - (11);
- the exchange neighborhood of the current steel coil processing sequence refers to: guaranteeing that any two steels in the steel coil processing order of the electrogalvanizing unit are exchanged without violating the system setting process constraints (2) - (11) a collection of all feasible steel coil sorting schemes obtained from the location of the volume;
- the 2-opt neighborhood refers to: All the feasible results obtained by changing the switching mode of any two coils in the processing order of the electro-galvanizing unit coils without violating the system-set process constraints (2) - (11) a collection of steel coil sorting schemes;
- Step 4.4 Establish a reference set of the steel coil processing sequence correction scheme, and add the former candidate correction schemes with better stability evaluation index values in the current candidate correction set P to the reference set, that is, ⁇ / ⁇ 2 ⁇ 1 , . , 1 ), and removing the candidate candidate correction scheme from the candidate correction set, and calculating a minimum distance from the current steel coil sorting scheme in the reference set for each candidate correction scheme in the current candidate correction set P;
- Step 4.5 Using the combination method of the steel coil sorting scheme, based on the processing sequence of any pair of steel coils in the reference set R e 3 ⁇ 4, generate b(bl) new steel coil correction schemes, and improve the newly generated correction scheme, using steps 4.3 (1) - (4) Obtain a candidate steel coil sorting correction scheme with better stability;
- the combined method of the steel coil sorting scheme is as follows: First, comparing the steel coil selection of the two coil processing sequences to obtain a common selection steel coil set; secondly, determining the processing position of the common selection steel coil, if it has The steel coils in the adjacent relationship are the selected steel coils, and the abutting relationship in the processing order of the steel coils with better system stability is adopted. If the steel coils with adjacent relationship are non-commonly selected steel coils, the non-common steel coils are The middle test is inserted into the original position, and the steel coil processing sequence with better overall evaluation is obtained;
- Step 4.6 Update the candidate correction set ⁇ Replace the less stable solution in the candidate correction set P with the newly generated candidate steel coil sorting correction scheme with better stability;
- Step 4.7 If the best candidate correction scheme in the candidate correction set P reaches the upper limit without the number of improvement iterations, then stop, and select the candidate correction scheme with the best evaluation value in the candidate correction set ⁇ as the current correction scheme; Otherwise, skip to step 4.4;
- the invention relates to a steel coil sorting system for a cold-rolled electrogalvanizing unit, comprising: at least one PC, at least one cable interface or cable interface or telephone line interface and at least one router; the PC is provided with cold-rolled plating
- the software of the zinc steel coil sorting system includes software production environment setting module, steel coil selection module, steel coil sorting module, steel coil sorting real-time correction module; wherein, the production environment setting module is used to set the electroplating unit steel coil production environment Processing parameters, describing the process engineering, determining the adjustment target and constraints of the process; the steel coil selection module selects the steel coil according to the current processing state of the electro-galvanizing unit, and determines the steel coil selection scheme; Based on the current steel coil selection, the module sorts the selected
- the method of the invention has the following advantages:
- the method of the present invention also considers the post-processing mode, width, and thickness variation of the steel coil selection for the entire production plan.
- the method of the present invention utilizes the cold rolling electrogalvanizing unit steel coil sorting system to control the production order of the steel coils, and the average number of switching times is 31.51% compared with the manually determined production sequence result, thereby effectively reducing the frequent adjustment of the production equipment. Thereby improving the quality of products and improving the efficiency of enterprises.
- the present invention combines the method of automatically optimizing the production order of the steel coil with the manual adjustment interface, and organically utilizes the speed of the computer and the experience and flexibility of the staff to maximize the work.
- the steel coil production system of the cold-rolled electrogalvanizing unit of the present invention adopts a modular design idea and a graphic interface, and the modular design makes the system easy to modify and transplant, and the graphical interface is convenient for the user to observe and operate.
- FIG. 1 is a process flow diagram of a steel coil sorting system for a cold-rolled electrogalvanizing unit according to the present invention
- FIG. 2 is a structural block diagram of a steel coil sorting system of a cold-rolled electrogalvanizing unit according to the present invention
- FIG. 3 is a flow chart of a steel coil sorting method for a cold-rolled electrogalvanizing unit according to the present invention
- FIG. 4 is a schematic view showing the first exchange movement in the steel coil sorting method of the cold-rolled electrogalvanizing unit of the present invention
- Figure 5 is a schematic view showing the second exchange movement in the steel coil sorting method of the cold-rolled electrogalvanizing unit of the present invention.
- 6 is a flow chart of the operation environment setting module of the steel coil sorting system of the cold-rolled electrogalvanizing unit of the present invention
- 7 is a flow chart of the operation of the steel coil selection module of the steel coil sorting system of the cold-rolled electrogalvanizing unit of the present invention
- FIG. 9 is a flow chart of the operation of the steel coil sorting real-time correction module of the steel coil sorting system of the cold-rolled electrogalvanizing unit of the present invention.
- FIG. 10 is a structural relationship diagram between the functional modules of the steel coil sorting system of the cold-rolled electrogalvanizing unit of the present invention.
- the steel coil sorting system of the cold-rolled electrogalvanizing unit in this embodiment has a process flow as shown in FIG. 1 , and its structure is as shown in FIG. 2 , and the configuration is as follows: one PC, one cable connection and one router;
- the PC is used to implement and operate the optimization system of the present invention, and communication devices such as routers and cable interfaces are used to realize the communication connection between the internal information management platform, the steel coil sorting system and the production site automatic control system to optimize the production process.
- the purpose of improving product quality; the software support embedded in the PC includes the Windows operating system as a supporting platform, and the Microsoft SQL Server 2000 database system is installed to support data management and configure information transmission ports.
- Download steel coil data information from the enterprise ERP data server including fields including steel coil number, contract number, inlet thickness, inlet width, outlet width, outlet thickness, coil weight, material group, supplement number, plating thickness, post-treatment method) , trimming mark, delivery date, steel type), set system parameters (including planned total weight upper and lower limits, post-processing mode set batch upper and lower limits, width, thickness switching amplitude upper limit, selection penalty coefficient, width, thickness switching range penalty) Coefficient), to obtain the sorting method and the operating object of the system, and at the same time, according to the steel coil inventory consumption and the previous unit feeding situation, the information of the steel coil is deleted one by one, and the steel coil information is modified and determined to be the current production.
- the enterprise ERP data server including fields including steel coil number, contract number, inlet thickness, inlet width, outlet width, outlet thickness, coil weight, material group, supplement number, plating thickness, post-treatment method) , trimming mark, delivery date, steel type
- set system parameters including planned total weight upper and lower limits, post-processing mode set batch
- the automatic steel coil optimization sorting method will be used to solve the sorting problem involving 12 steel coils in the warehouse.
- the key information of the specific steel coil is as follows Table 1 :
- Table 1 is steel coil information
- a steel coil sorting method for a cold-rolled electrogalvanizing unit is adopted, and the flow thereof is as shown in FIG. 3, and includes the following steps: Step 1: Using the electro-galvanizing unit steel coil production model, set the processing parameters of the electro-galvanizing unit steel coil: According to the amount of steel coils in the pre-galvanized zinc warehouse, the expected arrival of steel coils in the plan of the former electroplating unit and the current processing of electro-galvanizing units State, the upper and lower limits of the processing capacity of the electrogalvanizing unit in the steel coil processing plan [100, 120], the upper and lower limits of the processing capacity of the processing liquid after the post-treatment method [110, 200], the width jump, and the thickness jump range are respectively [0, 150] and [0, 2].
- Step 2 Select the steel coil according to the current state of the electro-galvanizing unit
- the steel coil to be processed by the electro-galvanizing unit is selected:
- the following specific operation steps are performed to obtain the steel coil collecting scheme: 2.1 : Judging the current processing status of the unit, determining the width of the last steel coil before the current plan is planned, that is, the upper limit W A of the current processing roll;
- Step 2.2 According to the processing situation of the coiled steel unit in the coil volume of the steel and the feed line of the previous supply line, determine the amount of steel coils that can be used during the current planning period, and classify the steel coils according to the required post-treatment methods. Requires post-processing for processing, the cumulative tonnage of available steel coils with a width not greater than W A ! ⁇ , and make the following decision:
- Step 2.2.1 If there is no steel coil with a width greater than or equal to W A + L W in the steel coil assembly , starting from the narrowest steel coil, until the new steel coil will lead to the current planned cumulative pool volume exceeds t/ ;
- Step 2.2.2 If there is a steel coil with a width greater than or equal to W A + L W in the steel coil set, calculate the cumulative tonnage of the steel coil with a width not less than W A + L W. If W ' ⁇ f /, the width is not less than The widest coil of W A + L W begins to collect, until the new steel coil will result in the current planned cumulative volume of steel coils exceeding t/ ; otherwise, the steel coil with a width of not less than W A + L W will be collected. Pool, and from the narrowest steel coil with width less than W A + L W , until the current planned cumulative pool volume exceeds t /, stop; finally select steel coil 1-8 into the current plan;
- Step 3 Set the initial processing sequence of the steel coil of the electro-galvanizing unit, based on the steel coil of the previous step, and formulate the processing sequence of the steel coil.
- the basic idea is as follows: Classification of the steel coils of the collection, and the formation of the steel coils with the post-treatment method A cluster, for any coil cluster, the total switching cost of the coil order in the cluster obtained by sorting the coil from thick (or thin) to thin (or thick) must be minimal. For two consecutive clusters, if the coils in the previous cluster are sorted from thin (or thick) to thick (or thin), then the latter The coils in the cluster are ordered from thick (or thin) to thin (or thick). As a result, the thickest (thin) steel coil in the next cluster will be processed after the thickest (thin) steel coil in the previous cluster is wound.
- the specific steps of the sorting method are as follows:
- Step 3.1 Initialize the current post-processing mode k is the smallest post-processing code in the pool steel coil
- Step 3. 2 If all the post-processing steel coils have been sorted, the initial coil processing sequence has been obtained and the result is output; otherwise, skip to Step 3;
- Step 3.3 Sort the post-processing steel coils from wide to narrow, and classify the post-processing steel coils according to the width to form g steel coil assemblies ⁇ ⁇ , k2 , . . . , kg ;
- Step 3.4 Sort the steel coil collections ⁇ , ..., and the medium steel coils to form two steel coil sorting sequences, respectively:
- the first sequence is obtained by sorting the steel coils with an odd number from thick to thin, and sorting the steel coils with an even number from thin to thick;
- the second sequence is obtained by sorting the steel coils with an odd number from thin to thick, and sorting the steel coils with an even number from thick to thin;
- the processing order of the steel coil with the smallest overall stability defect is set as the initial steel coil processing sequence of the electrogalvanizing machine group.
- Step 4 Correct the processing sequence of the coil of the electrogalvanizing unit in real time by:
- Step 4.1 Initialize the parameters of the system stability correction method, set the current electrogalvanizing unit coil processing order ⁇ to S 1 ; Obtain the current selected steel coil set ( ⁇ and the currently available steel coil set C4, where, ( ⁇ It is a collection of all steel coils that have been included in the current processing order of steel coils for electrogalvanizing units. C4 is all available in the warehouse or based on the processing conditions of the former units, but it is not included in the current processing order of the coils of electrogalvanized units.
- Step 4.2 Calculate the current processing order of the electrogalvanized steel coil Stability evaluation index value ( ⁇ );
- Step 4.3 Determine the candidate correction set for the current processing order of the electrogalvanized unit coils ⁇ Corrective means for obtaining the processing order of the coil include:
- Insert steel coil Under the premise of not infringing the production capacity limit constraint of the unit and the batch processing batch constraint, the candidate correction coil processing sequence is obtained by inserting a new steel coil in the current coil processing sequence, and the steel is newly added. Volume A in steel coil plus The position in the work order should meet the system setting process constraints (2) - (11);
- Step 4.4 Establish a reference set of the steel coil processing sequence correction scheme, and add the previous candidate candidate correction schemes with better stability evaluation index values in the current candidate correction set P to the reference set, that is, ⁇ / ⁇ 1 , .. . , 1 ), and remove the candidate candidate corrections from the candidate correction set.
- the minimum distance from the current steel volume sorting scheme in the reference set is calculated.
- Step 4.5 Using the combination method of the steel coil sorting scheme, based on the processing sequence of any pair of coils in the reference set R e 3 ⁇ 4, generate b(bl) new steel coil correction schemes, and improve the newly generated correction scheme to obtain stability. Better candidate steel coil sorting correction scheme.
- Step 4.6 Update the candidate correction set ⁇ Replace the poorly stable solution in the candidate correction set P with the newly generated candidate steel coil sorting correction scheme with better stability.
- Step 4.7 If the best candidate correction scheme in the candidate correction set P reaches the upper limit without the number of improvement iterations, the algorithm stops the algorithm, and the candidate correction scheme with the best evaluation value in the candidate correction set is selected as the current correction scheme; Otherwise, skip to step 4.4;
- Step 5 Under the display module interface, view the results of the automatic sorting.
- Step 6 Through the network, the steel coils are sorted and sent to the automatic control system of the production unit to guide production in real time.
- the steel coil sorting system of the cold-rolled electrogalvanizing unit of the embodiment comprises: at least one PC, at least one cable interface or cable interface or telephone line interface and at least one router;
- the PC is provided with software for a cold-rolled electrogalvanized steel coil sorting system, and the software includes a production environment setting module.
- the steel coil selection module selects the steel coil according to the current processing state of the electro-galvanizing unit, and determines the steel coil selection scheme.
- the main process is shown in FIG. 7;
- the steel coil sorting module sorts the selected steel coils based on the current steel coil selection, obtains the processing order of various steel coils, and selects the better steel coil sorting as the current processing scheme.
- the main process is shown in FIG. 8;
- the steel coil sorting real-time correction module performs on-line real-time correction of the current coil processing scheme, and improves and obtains a better steel coil processing scheme.
- the main process is shown in Figure 9;
- the PC is connected to the front end of the automatic control system of the enterprise electro-galvanizing machine group through a network and an internal enterprise server.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Quality & Reliability (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Economics (AREA)
- Entrepreneurship & Innovation (AREA)
- Human Resources & Organizations (AREA)
- Strategic Management (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Electrochemistry (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- General Business, Economics & Management (AREA)
- Theoretical Computer Science (AREA)
- Marketing (AREA)
- Development Economics (AREA)
- Tourism & Hospitality (AREA)
- Operations Research (AREA)
- Game Theory and Decision Science (AREA)
- Educational Administration (AREA)
- General Factory Administration (AREA)
- Electroplating Methods And Accessories (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/993,622 US9181626B2 (en) | 2012-01-19 | 2012-04-27 | Coil scheduling method and system for electrogalvanizing line in steel industry |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210018536.7A CN102621941B (zh) | 2012-01-19 | 2012-01-19 | 一种冷轧电镀锌机组钢卷排序方法及系统 |
CN201210018536.7 | 2012-01-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013107129A1 true WO2013107129A1 (zh) | 2013-07-25 |
Family
ID=46561908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2012/074839 WO2013107129A1 (zh) | 2012-01-19 | 2012-04-27 | 一种冷轧电镀锌机组钢卷排序方法及系统 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9181626B2 (zh) |
CN (1) | CN102621941B (zh) |
WO (1) | WO2013107129A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112001637A (zh) * | 2020-08-25 | 2020-11-27 | 上海汽车集团股份有限公司 | 一种工艺流程确定方法、装置、服务器及存储介质 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104376424B (zh) * | 2014-11-27 | 2017-07-11 | 东北大学 | 一种钢铁企业冷轧区多产线钢卷协调调度方法 |
JP2018142217A (ja) * | 2017-02-28 | 2018-09-13 | 富士通株式会社 | 作業計画作成プログラム、作業計画作成装置、及び作業計画作成方法 |
TWI637250B (zh) * | 2017-03-31 | 2018-10-01 | 林器弘 | 智慧加工調變系統及方法 |
CN112947319B (zh) * | 2019-12-11 | 2024-03-29 | 上海宝信软件股份有限公司 | 一种钢铁企业冷轧区多产线的集批排程优化方法及系统 |
CN114633975B (zh) * | 2020-12-16 | 2024-01-09 | 宝山钢铁股份有限公司 | 连续波浪型鞍座的钢卷堆放方法及装置、设备、存储介质 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1357484A1 (en) * | 2000-12-28 | 2003-10-29 | Amada Company, Ltd. | Method of preparing estimate for sheet metal working |
JP2005284328A (ja) * | 2004-03-26 | 2005-10-13 | Fuji Photo Film Co Ltd | ロット完結型生産方法及びロット完結型生産システム |
CN101097617A (zh) * | 2006-06-30 | 2008-01-02 | 东北大学 | 一种金属热轧优化调度方法及其系统 |
CN101322982A (zh) * | 2008-07-24 | 2008-12-17 | 北京金自天正智能控制股份有限公司 | 一种多台卷取机出口运卷设备的控制方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6177140B1 (en) * | 1998-01-29 | 2001-01-23 | Ispat Inland, Inc. | Method for galvanizing and galvannealing employing a bath of zinc and aluminum |
JPH11232332A (ja) * | 1998-02-10 | 1999-08-27 | Tokyo Electric Power Co Inc:The | 生産ラインにおける日程計画立案方法 |
CN101216695B (zh) * | 2007-12-26 | 2010-06-02 | 燕山大学 | 一种平整轧制压力设定、预报及自学习方法 |
CN101334660B (zh) * | 2008-06-30 | 2011-01-26 | 东北大学 | 一种冷轧连续退火机组钢卷优化排序方法及其系统 |
CN101329573B (zh) * | 2008-07-25 | 2010-07-14 | 东北大学 | 一种冷轧酸洗和轧制联合机组自动排产优化方法及系统 |
US20110258087A1 (en) * | 2010-04-14 | 2011-10-20 | International Business Machines Corporation | Analytics for setting up strategic inventory systems to handle small lot orders in the steel industry |
-
2012
- 2012-01-19 CN CN201210018536.7A patent/CN102621941B/zh active Active
- 2012-04-27 WO PCT/CN2012/074839 patent/WO2013107129A1/zh active Application Filing
- 2012-04-27 US US13/993,622 patent/US9181626B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1357484A1 (en) * | 2000-12-28 | 2003-10-29 | Amada Company, Ltd. | Method of preparing estimate for sheet metal working |
JP2005284328A (ja) * | 2004-03-26 | 2005-10-13 | Fuji Photo Film Co Ltd | ロット完結型生産方法及びロット完結型生産システム |
CN101097617A (zh) * | 2006-06-30 | 2008-01-02 | 东北大学 | 一种金属热轧优化调度方法及其系统 |
CN101322982A (zh) * | 2008-07-24 | 2008-12-17 | 北京金自天正智能控制股份有限公司 | 一种多台卷取机出口运卷设备的控制方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112001637A (zh) * | 2020-08-25 | 2020-11-27 | 上海汽车集团股份有限公司 | 一种工艺流程确定方法、装置、服务器及存储介质 |
Also Published As
Publication number | Publication date |
---|---|
US9181626B2 (en) | 2015-11-10 |
CN102621941A (zh) | 2012-08-01 |
CN102621941B (zh) | 2014-08-20 |
US20140195034A1 (en) | 2014-07-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104376424B (zh) | 一种钢铁企业冷轧区多产线钢卷协调调度方法 | |
WO2013107129A1 (zh) | 一种冷轧电镀锌机组钢卷排序方法及系统 | |
CN106779220B (zh) | 一种炼钢-连铸-热轧集成调度方法与系统 | |
WO2017088674A1 (zh) | 一种面向全流程生产的炼钢组批与排产方法 | |
CN110955206B (zh) | 一种订单排程与分配调度方法及系统 | |
CN101329573B (zh) | 一种冷轧酸洗和轧制联合机组自动排产优化方法及系统 | |
CN101344781B (zh) | 一种冷轧热镀锌机组板卷自动调度方法及系统 | |
US20210073695A1 (en) | Production scheduling system and method | |
CN108182518B (zh) | 一种基于改进遗传算法的在制状态人员调度方法 | |
CN104123587B (zh) | Mto‑mts管理模式下钢铁生产合同计划和多级库存匹配优化方法 | |
CN108665092B (zh) | 一种基于混合萤火虫算法的全流程排产与优化方法 | |
CN101833709A (zh) | 半导体生产线生产计划的混合智能优化方法 | |
CN108876050B (zh) | 一种钢铁企业合同主制程的设定与自动转换方法 | |
CN1661609A (zh) | 钢铁生产计划中合同与库存联合优化管理方法 | |
CN112947319A (zh) | 一种钢铁企业冷轧区多产线的集批排程优化方法及系统 | |
CN111259314A (zh) | 一种分布式混凝土预制构件流水车间生产调度方法 | |
CN109858780A (zh) | 一种炼钢-连铸生产调度优化方法 | |
CN111401616A (zh) | 一种供应链环境下预制混凝土构件的双层调度方法 | |
Ruan et al. | Improved eight-process model of precast component production scheduling considering resource constraints | |
CN113537568A (zh) | 一种钢铁热轧生产调度计划确定方法及系统 | |
CN101403920B (zh) | 一种钢铁企业冷轧精整机组产能负荷均衡方法 | |
Tang et al. | Modeling and solution for the coil sequencing problem in steel color-coating production | |
CN104942251A (zh) | 炼钢厂连铸机的开浇时间确定方法 | |
CN111861299B (zh) | 一种钢铁企业全流程库存水平预警与控制方法 | |
Yu et al. | Supplier evaluation analysis based on AHP-entropy-TOPSIS method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 13993622 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12865757 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 12865757 Country of ref document: EP Kind code of ref document: A1 |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 12865757 Country of ref document: EP Kind code of ref document: A1 |