Laminar cooling control system and method for hot strip steel
A laminar flow cooling and control system technology, applied in metal rolling, temperature control, metal rolling, etc., can solve problems such as the inability to meet the research and development and production of advanced steel materials, the inability to dynamically adjust the cooling rate of the strip, and the cooling rate is not high
Active Publication Date: 2017-11-28
武汉钢铁有限公司
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Problems solved by technology
[0004] However, the current conventional laminar flow cooling control system cannot meet the research and development and production of some advanced steel materials with special cooling requirements due to its low cooling rate, and the existing laminar flow cooling control system cannot dynamically adjust the strip cooling rate
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[0038] Please refer to figure 2 Shown, the present invention is used for the preferred embodiment of hot-rolled steel strip laminar flow cooling control method and comprises the following steps:
[0039] Step S1: pre-store a number of water volume parameters and a number of upper and lower spray flow proportional coefficients in the TPS management system 3, wherein the number of water volume parameters are respectively recorded as the first to Nth water volume size parameters, and the number of upper and lower jets The jet flow proportional coefficients are respectively recorded as the first to Nth upper and lower jet flow proportional coefficients.
[0040] Step S2: A water volume parameter and a proportional coefficient of up and down spray flow stored in the TPS management system 3 are input to the process automation L2 server 2 . During this process, the operator can also manually input the upper and lower spray flow proportional coefficients to the process automation L2...
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The invention discloses a laminar cooling control system for hot rolling strip steel. The laminar cooling control system comprises a basic automation L1 stage controller, a process automation L2 stage server and a TPS management system. A plurality of water amount parameters and a plurality of up-down spraying flow proportionality coefficients are stored in the TPS management system, the TPS management system serves as the input end of the process automation L2 stage server, and one water amount parameter and one up-down spraying flow proportionality coefficient which are stored inside the TPS management system are input into the process automation L2 stage server. The process automation L2 stage server is used for processing the received water amount parameters and the received up-down spraying flow proportionality coefficients so as to obtain quick cooling mode setting results; and the process automation L2 stage server is further used for transmitting the obtained quick cooling mode setting results to the basic automation L1 stage controller during steel biting of a finishing mill group F1. The invention further discloses a laminar cooling control method for hot rolling strip steel. By means of the control system and method, the strip steel cooling rate can be adjusted.
Description
technical field [0001] The invention relates to strip steel cooling technology, in particular to a laminar flow cooling control system and method for hot-rolled strip steel. Background technique [0002] In the strip hot rolling process, the coiling temperature has a great influence on the metallographic structure of the strip, and is one of the important process parameters that determine the processing performance, mechanical properties and physical properties of the finished strip. If the coiling temperature is too high, the recrystallization and slow cooling after coiling will result in the accumulation of coarse crystal structure and carbides, leading to the deterioration of mechanical properties and the generation of hard oxide scale, making pickling difficult. If the coiling temperature is too low, on the one hand, it is difficult to coil, and residual stress exists, and it is easy to uncoil, which affects the quality of the finished coil; on the other hand, there is n...
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IPC IPC(8): B21B37/74B21B45/02
CPCB21B37/74B21B45/0218
Inventor 李鹏程彭维纲蔡卫佳高智平练瑞明胡锐翟宝林何龙义徐伟肖颖
Owner 武汉钢铁有限公司