Steel coil production time optimization calculation method in cold rolling process and application thereof
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A production time and optimization calculation technology, applied in the field of cold-rolled strip steel, can solve the problem of low production time accuracy and achieve the effect of improving data accuracy
Active Publication Date: 2021-06-11
马钢(合肥)钢铁有限责任公司
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[0009]
Aiming at the problem of low accuracy of the production time of steel coils on the production line in the process of cold rolling steel strip existing in the prior art, the present invention provides a calculation method for optimizing the production time of steel coils in the cold rolling process, which can realize cold rolling Improved production time accuracy in the process
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Embodiment 1
[0046] This embodiment discloses a method for optimizing the production time of steel coils in the cold rolling process, including the following steps:
[0047] Step 1: The first-level electrical system obtains the production action time information of the steel coil; the acquired production action time information includes the welding time at the welding machine when the parent coil starts to go online and the shearing time at the flying shear when each sub-coil goes off the line.
[0048] In the prior art, the time when the master roll chilled roll is welded by the on-line welding machine is used as the start time of the first sub-roll of the parent roll in continuous unrolling, and the other sub-rolls of the parent roll are taken as the export fly-shearing split time as the last roll End time, start time of the next volume. This method has no calculation in the secondary control system (PCS), and the secondary system directly transmits the time data from the primary system ...
Embodiment 2
[0099] System stability check:
[0100] We have applied the new method model to run on the continuous annealing production line for 5 years. In August 2020, the production time for producing three continuous annealing sub-coils after continuous annealing is for a parent coil number S207165930 chilled coil:
[0101] The first continuous retreat sub-volume, volume number: J208002691, see the production time Figure 10 As shown, the production start time: 21:57:47 on August 6, 2020, and the production end time: 22:23:01 on August 6, 2020;
[0102] The second continuous retreat sub-volume, volume number: J208002692, see the production time Figure 11 As shown, the production start time: 22:03:17 on August 6, 2020, and the production end time: 22:30:15 on August 6, 2020;
[0103] The third consecutive retreat sub-volume, volume number: J208002693, see the production time Figure 12 As shown, the production start time: 22:11:31 on August 6, 2020, and the production end time: 22:3...
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Abstract
The invention discloses a steel coil production time optimization calculation method in a cold rolling process and application thereof, and belongs to the field of cold rolling strip steel. Aiming at the problem of low accuracy of production time of a steel coil on a production line in a strip steel cold rolling process in the prior art, the method comprises the following steps of 1, acquiring steel coil production action time information by an electrical primary system; 2, using a secondary process control system to calculate the time data collected in step 1 to obtain the production starting time and the production ending time of each sub-coil, and uploading calculation results to a tertiary manufacturing execution system through an interface in the form of data messages; 3, using the tertiary manufacturing execution system to summarize and arrange the received data, then collecting the data into production actual performance, and ensuring that workers look up production actual performance data through client software. The method can improve the accuracy of production time in a continuous annealing or continuous plating process, and is convenient for production process control and capacity release.
Description
technical field [0001] The invention relates to the field of cold-rolled steel strips, and more specifically relates to a method for calculating optimal production time of steel coils in a cold-rolling process and its application. Background technique [0002] With the continuous improvement of the production technology of iron and steel enterprises and the continuous improvement of market demand, new technologies and technologies emerge in an endless stream. In the past ten years, in the great development of the iron and steel industry technology, the continuous annealing (CAL) and continuous galvanizing of cold-rolled strip (CGL) has quickly become the most advanced and popular cold rolling production process in the world today. This unit integrates the strip welding, degreasing, cleaning, high temperature annealing, cooling, aging treatment, leveling, inspection and other processes in one large operation line , has the advantages of huge operating capital, high degree of ...
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