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Method for simulating steel board cooling control

A technology of cooling control and simulation method, which is applied in the direction of comprehensive factory control, comprehensive factory control, electrical program control, etc., and can solve problems such as difficulty in realizing engineering research of general control technology, lack of sensors and controllers, and risk of production line debugging , to achieve the effect of automatically optimizing setting control, saving production debugging costs, and saving online debugging time

Active Publication Date: 2010-02-03
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology

However, the improvement of any of the above needs to have a comprehensive grasp of the upper and lower computer systems and a full understanding of the interface. Large process improvements will also involve changes in the system structure, which will bring risks to the commissioning of the production line , may even bring some loss
[0005] Although there are many papers published on laminar flow cooling simulation, they are basically based on the research of specific algorithms or a certain process. The simulation software package does not have the exchange of signals between sensors and controllers, and they are all simulation results obtained under many assumptions. , can only evaluate the algorithm to a certain extent, and it is difficult to realize the engineering research of general control technology

Method used

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  • Method for simulating steel board cooling control
  • Method for simulating steel board cooling control
  • Method for simulating steel board cooling control

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example

[0061] When the thickness of the steel plate is 25.35mm, the width is 3857mm, the length is 21559mm, the outlet temperature of the rolling mill is 793±5°C, the cooling target temperature is 530°C, the cooling rate is 20K / S, the steel type is given, the control amount and electromotive potential set by the process control device The actual flow rate fed back by the controller is as follows:

[0062]

[0063] After the PLC receives the set value of the process control device, press the start button, the motor refreshes the speed according to the 500ms cycle (set speed = 12mm / s), the motor drives the belt to rotate, and the steel bar mounted on the belt starts to move. When the head of the simulated steel plate moves to the first photoelectric switch position, the electric potentiometer for analog flow adjustment and electric potentiometer for analog shielding start to move, reaching the position required by the setting of flow rate and edge shielding. When the head of the sim...

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Abstract

The invention discloses a method for simulating steel board cooling control. A process control device is connected with a cooling apparatus simulating device by a PLC. The cooling apparatus simulatingdevice comprises a transmission device on which a steel bar is fixed, a cooling process temperature calculating device for simulating temperature measurement, a polling display instrument for displaying temperature, an electric potentiometer, a photoelectric switch and a position indicator. The photoelectric switch is arranged on a movement path of the steel bar. The process control device accomplishes the optimum setting of PLC control amount. The PLC accomplishes real-time control of a cooling simulating process. The cooling apparatus simulating device actually opens or closes and adjusts asimulating cooling line and realizes real-time data acquisition. Through the hardware mutual connection and software cooperation of the devices, the simulation on a cooling control process system isaccomplished. The invention provides a pilot plant test device of simulation evaluation for the improvement and completion of the control system.

Description

[0001] This application is a divisional application of an invention patent application with an application date of March 27, 2007, an application number of 200710038523.5, and a title of "steel plate cooling control simulation system and method". technical field [0002] The invention belongs to the technical field of simulation and automatic control of the steel plate cooling process after rolling, and in particular relates to a steel plate cooling control simulation system and method. Background technique [0003] The online accelerated cooling process of rolled high-temperature steel plate has been widely used in the production process of thick plate with high strength, high toughness and good weldability. The controlled cooling of the steel plate is through the control of the structure of the steel plate, which greatly reduces the investment of the alloy and saves the post-treatment process, so as to achieve the purpose of saving costs and improving economic benefits. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418G05B19/05B21B45/00C21D1/84
CPCY02P70/10Y02P90/02
Inventor 王笑波刘晔
Owner BAOSHAN IRON & STEEL CO LTD
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