Device and method for setting rolling reduction and rolling speed of each rack in cold continuous rolling
A technology of rolling speed and setting device, applied in rolling mill control device, metal rolling, metal rolling, etc., can solve the problems of infinite cycle, single performance index, inability to take into account cycle time at the same time, etc., to reduce rolling energy. consumption, the effect of wide application prospects
Inactive Publication Date: 2015-01-28
SHENYANG POLYTECHNIC UNIV
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Problems solved by technology
At present, the setting method of reduction amount and rolling speed used in the actual production line is mostly a cycle process of "calculation-judgment-correction-calculation". When multiple performance indicators are considered, the cycle time will be too long or even infinite loop)
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[0036] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0037] figure 1 The present invention is a structural block diagram of the device for setting the reduction amount and rolling speed of each stand of continuous cold rolling in this embodiment. The unit includes:
[0038] Initial reduction ratio generator: based on empirical data (for example, when rolling a strip of a certain specification, the ratio of the reduction of each pass and the rolling speed used for rolling the same specification of strip can be found through the database. Historical data, use these historical data to generate initial reduction rate through crossover and mutation) or use random method to generate (when empirical data is missing) N groups (N takes 10-20) cold rolling each stand reduction rate (one Generally, there is not only one stand in the tandem cold rolling group of the group, but several stands are arranged, ...
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The invention discloses a device and method for setting the rolling reduction and the rolling speed of each rack in cold continuous rolling and belongs to the field of automatic control, information technology and advanced manufacturing. The device for setting the rolling reduction and the rolling speed of each rack in cold continuous rolling comprises an initial reduction rate generator, a power balance calculator, an energy consumption calculator, a constraint generator, a crude regulation updater, a constraint non-dominated sequencer, a fine regulation updater, a reduction rate selector, a reduction rate updater, a filter and a final rolling reduction and rolling speed generator. The device and method for setting the rolling reduction and the rolling speed of each rack in cold continuous rolling can calculate the rolling reduction and the rolling speed of each various rack for rolling band steel with different specifications under the condition of empirical data missing and reduce rolling energy consumption to the maximum under the premise of guaranteeing load equalization of each rack, have great significance for energy conservation and emission reduction in the process of rolling the band steel and have broad application prospects at the same time.
Description
technical field [0001] The invention belongs to the fields of automatic control, information technology and advanced manufacturing, and in particular relates to a device and method for setting cold rolling reduction and rolling speed based on evolutionary calculation. Background technique [0002] The reduction and rolling speed setting in the rolling schedule is one of the main contents of the strip steel production process, which has a significant impact on the output, quality, cost, production safety, and process control accuracy of the product. Reasonable reduction and rolling speed can not only increase the productivity of strip steel, reduce energy consumption, but also ensure the quality of products, improve the precision of process control, response speed and utilization efficiency of equipment, thus bringing great economic benefits . At present, the setting method of reduction amount and rolling speed used in the actual production line is mostly a cycle process of ...
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IPC IPC(8): B21B37/00B21B37/46B21B37/58
Inventor 李勇王昱张宇献刘时光常云龙秦同
Owner SHENYANG POLYTECHNIC UNIV