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Steel billet water beam black mark temperature difference control method in walking beam type heating furnace

A control method and heating furnace technology, which are applied in temperature control, heat treatment furnace, non-electric variable control and other directions, can solve the problems that are not involved, and achieve the effect of strong operability, large promotion area, and improvement of heating quality.

Active Publication Date: 2019-09-13
CHONGQING CISDI THERMAL & ENVIRONMENTAL ENG CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, none of the patents aimed at the control of the heating furnace involves the control of the water beam black mark, such as CN200910053532.0, CN201110076910.4 patents, etc.

Method used

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  • Steel billet water beam black mark temperature difference control method in walking beam type heating furnace
  • Steel billet water beam black mark temperature difference control method in walking beam type heating furnace
  • Steel billet water beam black mark temperature difference control method in walking beam type heating furnace

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Embodiment Construction

[0039] The method provided by the present invention will be described in detail below through specific examples.

[0040] figure 1 The overall flowchart of the method provided by the present invention, as shown in the figure, the control method of the black mark temperature difference of the billet water beam in the walking beam heating furnace furnace provided by the present invention comprises the following steps:

[0041] S1: Recalculate the comprehensive radiation coefficient of the water beam part and non-water beam part at the bottom of the billet according to the measured data of the billet black box;

[0042] S2: According to the comprehensive radiation coefficient of the water girder part and the non-water girder part calculated in step S1, after judging the correctness of the data, calculate the shielding coefficient of the water girder part;

[0043] S3: Select the part including the water beam shield as the center to intercept the two-dimensional section inside th...

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Abstract

The invention relates to a steel billet water beam black mark temperature difference control method in a walking beam type heating furnace, belonging to the technical field of heating furnace optimization control. The steel billet water beam black mark temperature difference control method in the walking beam type heating furnace comprises the following steps: determining a deviation value of theintegrated heat conductivity coefficient caused by the shielding effect of the water beam black mark part and the non-water beam black mark part through the data regression of a buried couple experiment; calculating the temperature difference of the water beam black mark part during the heating process of the steel billet through establishing a temperature tracking calculation model of the water beam black mark part; and performing suitable adjustment on the time of the steel billet in the furnace time according to the different black mark part temperature difference control requirements, so as to form a perfect steel billet water beam black mark temperature difference control method. The steel billet water beam black mark temperature difference control method in the walking beam type heating furnace can make the water beam black mark temperature difference of the steel billet out of the furnace meet the heating control requirements; and the control method has strong operability and has a large promotion value.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, in particular to the technical field of optimal control of heating furnaces, and relates to a method for controlling the temperature difference of billet water beam black marks in a walking beam heating furnace. Background technique [0002] The heating furnace is an important equipment for steel rolling production, and the quality of the heated billet directly restricts the quality of the finished product. The use of the walking beam heating furnace enables the billet in the furnace to be heated from the upper and lower parts at the same time, which greatly improves the overall temperature uniformity of the billet, but it also brings about the black mark of the water beam on the contact part of the billet and the water beam. When the temperature difference of the water beam black mark exceeds 35°C, it may affect the rolling quality of the subsequent process. Therefore, when the billet is rele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/20C21D9/70
CPCC21D9/70G05D23/20
Inventor 董斌郭英朱伟素罗建枫
Owner CHONGQING CISDI THERMAL & ENVIRONMENTAL ENG CO LTD
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