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Intelligent optimal control method for car-bottom type furnace

An intelligent optimization and control method technology, applied in the control field, can solve problems such as low product quality and inability to accurately control trolley furnace production

Active Publication Date: 2014-11-05
中冶南方(武汉)信息技术工程有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the production of trolley furnaces cannot be accurately controlled, resulting in low product quality. To solve this problem, an intelligent optimal control method for trolley furnaces is proposed

Method used

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Embodiment Construction

[0043] The intelligent optimal control method of the bogie furnace of the present invention will be further elaborated below in combination with the embodiments.

[0044] From PDI (basic data information) data, the size of the steel plate to be processed is 5500mm×1800mm×245mm, the steel type is Q345B, and the process parameters are heating for 4 hours to 600°C, then holding for 2.5 hours, and then heating for 3.5 hours to 900°C. Then keep warm for 6 hours. At the same time, obtain the thermal physical parameters required in the calculation process of the steel plate. For details, see figure 1 .

[0045] 1. Collect the furnace temperature in the trolley furnace: collect the furnace temperature in each section of the furnace from the basic automation system.

[0046] Generally speaking, the trolley furnace is relatively long, and the collection of furnace temperature only collects the furnace temperature of each section where the incoming material is located.

[0047] 2. Cal...

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Abstract

The invention relates to an intelligent optimal control method for a car-bottom type furnace. The method comprises steps as follows: (1) acquiring temperatures of sections in the car-bottom type furnace through a base automatic system; (2) calculating temperature fields of materials to be fed at the next moment according to the temperature fields of feeding materials currently, the temperature of the furnace currently, dimensions and specifications and physical property parameters of the feeding materials; (3) obtaining a calculation temperature of each feeding material currently based on a calculation result of the temperature fields of the feeding materials currently in step (2), calculating a comprehensive adjusting value of a furnace temperature according to deviation between the calculation temperature of the feeding material currently and the temperature under a technical requirement, and adjusting the temperature of the furnace. According to the intelligent optical control method, the temperature of the furnace is controlled in a way of multi-sectional curve; compared with other methods for controlling the furnace temperature by only controlling a discharge temperature and in-furnace time and ignoring an actual processing process of the material, the method provided by the invention has the advantages that a heating temperature in each point and each time is monitored during a heating process, so that a material control level can be improved.

Description

technical field [0001] The invention relates to a control method, in particular to an intelligent optimal control method for a trolley furnace. Background technique [0002] The trolley furnace is mainly used in the heat treatment process of wide and thick plates, large parts and other materials. The current production of trolley furnaces is basically manual production, with low production efficiency, high labor intensity and high error rate. During the heat treatment process of the trolley furnace, no automatic control is carried out, and the furnace temperature is controlled entirely by the experience of the technicians. First, the control is not accurate enough, and second, the energy consumption cannot be controlled. In the production process, the products of some furnaces may Not only failed to achieve the effect of heat treatment, but burned parts or steel plates. The materials produced by different production personnel also vary, reducing the consistency of product ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/00C21D11/00
Inventor 王志军奚泱周毅刘校平陈跃平
Owner 中冶南方(武汉)信息技术工程有限公司
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