Method for online calibration of fixed type pyrometers of continuous type annealing furnace

A calibration method and an annealing furnace technology, applied to thermometers, thermometer testing/calibration, furnaces, etc., can solve the problems that pyrometers cannot be calibrated

Active Publication Date: 2014-06-04
BEIJING SHOUGANG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a method for online calibration of a fixed pyrometer in a c

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  • Method for online calibration of fixed type pyrometers of continuous type annealing furnace
  • Method for online calibration of fixed type pyrometers of continuous type annealing furnace
  • Method for online calibration of fixed type pyrometers of continuous type annealing furnace

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Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0015] The embodiment of the present invention provides a method for online calibration of a fixed pyrometer in a continuous annealing furnace, which solves the problem of calibrating this type of pyrometer without stopping the machine, reduces the inventory of spare parts, and reduces the cost of pyrometers. The frequency of commissioned calibration reduces the cost of pyrometer calibration and reduces the waste of resources.

[0016] The calibration method provided in this embodiment is: set the specified temperature mechanism (the heating section is based on the actual furnace conditions, and the temperature of the soaking section is uniform), to ensure that the material reaches the specified temperature at the end of the heating section at the specified operati...

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Abstract

The invention discloses a method for online calibration of fixed type pyrometers of a continuous type annealing furnace and relates to the technical field of calibration of the pyrometer. The method comprises the following steps of preparing adjusting materials with different surface states, making a temperature-rising curve of the annealing furnace in the period of temperature rising before production, setting a uniform-heating section of the annealing furnace to respectively carry out insulation on preset temperature, utilizing different heating curves of the annealing furnace, enabling the adjusting materials to be heated to preset temperature at a heating section, carrying out insulation at the uniform-heating section, preparing the adjusting materials at preset low speed, and recording and storing surface temperature data of the adjusting materials measured by all the pyrometers under the same moment and state; and analyzing the acquired temperature data to obtain average data deviation of all the pyrometers, calibrating the pyrometers with the temperature deviation being not more than +/-1 DEG C, and correcting the pyrometers with the temperature deviation being more than +/-1 DEG C. The method disclosed by the invention is applicable to calibration and correction of the pyrometer under the non-stop state.

Description

technical field [0001] The invention relates to the technical field of pyrometer calibration, in particular to an online calibration method for a fixed pyrometer in a continuous annealing furnace. Background technique [0002] The continuous annealing furnace is a heat treatment industrial furnace with materials passing through continuously. Usually, the industrial furnaces for the production of strips are mostly industrial furnaces. This type of industrial furnace generally has higher requirements for the atmosphere and temperature control in the furnace. In addition, some continuous annealing furnaces also have higher control requirements on the surface temperature of materials. Therefore, a pyrometer is added to the annealing furnace to measure the actual temperature of the material surface. Usually, such a pyrometer is set as a fixed pyrometer, which is used to continuously measure and record the surface temperature data of the material, and then track the process statu...

Claims

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Application Information

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IPC IPC(8): C21D1/26C21D9/00G01K15/00
Inventor 李泽琳赵松山兰晓栋蒋本君徐国睿张伟王守金李盈
Owner BEIJING SHOUGANG CO LTD
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