Method for accurately forecasting in-furnace remaining time of hot rolled plate blanks

A slab, time technology, applied in the direction of instrumentation, comprehensive factory control, control/regulation system, etc., can solve problems such as inaccurate furnace temperature setting

Inactive Publication Date: 2019-07-05
北京科技大学设计研究院有限公司
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Problems solved by technology

[0004] In order to solve the problem of inaccurate furnace temperature setting due to the problem of rhythm, the present invention provides a method for accurately predicting the remaining time of hot-rolled slabs in the furnace

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  • Method for accurately forecasting in-furnace remaining time of hot rolled plate blanks
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  • Method for accurately forecasting in-furnace remaining time of hot rolled plate blanks

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Embodiment Construction

[0030] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0031] The invention provides a method for accurately predicting the remaining time of the hot-rolled slab in the furnace.

[0032] The method includes steps as follows:

[0033] (1) Statistical analysis of previous data: Statistical analysis is carried out on the tapping time intervals of different types of materials according to the slab length, width, and final rolling thickness, and the tapping interval process tables for different specifications of slabs are obtained;

[0034] (2) Determining the firing sequence: traverse all furnace slabs in the furnace, sort according to the furnace loading sequence, and determine the firing sequence number of each slab;

[0035] (3) Determine the time of a single slab in the furnace: predict the remaining time o...

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Abstract

The invention provides a method for accurately forecasting the in-furnace remaining time of hot rolled plate blanks, and belongs to the technical field of steel rolling. The method includes three steps of statistical analysis of previous data, discharge sequence determination and in-furnace time determination of single plate blanks. The method includes spacing the discharge time of different kindsof materials, and performing statistical analysis according to the lengths, widths and finish rolling thicknesses of the plate blanks so that the steel tapping interval process tables of plate blankswith different product specifications can be obtained; traversing the in-furnace plate blanks of all furnaces, performing ordering according to charging sequences, and determining the discharging sequence number of each plate blank; and respectively predicting the in-furnace remaining time of the plate blanks according to different situations. The problems of inapplicable furnace temperature setting models due to rhythm problems when domestic general hot continuous rolling heating furnaces use different numbers of heating furnaces to perform production can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of steel rolling, in particular to a method for accurately predicting the remaining time of a hot-rolled slab in a furnace. Background technique [0002] With the continuous development of intelligent manufacturing, many steel mills have shifted their attention to the heating furnace. As we all know, the energy consumption of the heating furnace accounts for about 70% of the entire hot rolling, so the heating furnace has a lot of room for energy saving and consumption reduction. [0003] In the heating furnace control system of the conventional hot continuous rolling production line, the forecast of the remaining time of the slab in the furnace is a major difficulty affecting the control of the furnace temperature. Only on the basis of accurately predicting the remaining time of the slab in the furnace, can the necessary furnace temperature for the slab be accurately predicted, and the intelligent combustion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCG05B19/41865G05B2219/32252
Inventor 李立刚孙文权蔺凤琴宋勇荆丰伟
Owner 北京科技大学设计研究院有限公司
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