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Equipment for measuring temperature of steel coil in top hat annealing furnace and using method of equipment

A bell-type annealing furnace and temperature measuring device technology, applied in furnaces, heat treatment furnaces, furnace types, etc., can solve problems such as unreasonable structure and shape, affect the surface quality of strip steel, and reduce the yield of finished products, so as to reduce folding and Scratch, low cost, and the effect of reducing production cost

Active Publication Date: 2013-07-17
WISDRI WUHAN WIS IND FURNACE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the devices used for measuring the temperature of steel coils in bell-type annealing furnaces. Due to their unreasonable structure and shape, cutting strips often scratch the surface of the strip steel and cause creases on the surface of the strip steel, thereby affecting the surface of the strip steel. To solve the problems of high quality, reduce the finished product rate, etc., provide a reasonable structure and shape, which can improve the surface quality of the steel coil, reduce the scrap rate, and can dynamically track the internal temperature of the steel coil during the annealing process of the current bell furnace, and the monitoring data is accurate. It is used for the temperature measurement of the steel coil in the bell annealing furnace to provide reliable data support for the model correction and validity verification of the bell annealing furnace, the analysis of the surface oxidation defects of the strip steel in the annealing of the bell annealing furnace, and the optimization of the annealing process system of the bell annealing furnace. Device and method of use

Method used

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  • Equipment for measuring temperature of steel coil in top hat annealing furnace and using method of equipment
  • Equipment for measuring temperature of steel coil in top hat annealing furnace and using method of equipment
  • Equipment for measuring temperature of steel coil in top hat annealing furnace and using method of equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A method for using a temperature measuring device for steel coils in a bell annealing furnace, the steps of which are:

[0032] 1) According to the temperature measurement point set for the steel coil, during the strip coiling process, insert a core insert 2 into the place where the thermocouple 4 of the steel coil is not damaged by pressure, and make the outer surface of the core insert 2 Towards the outer normal line of the steel coil; the depth of inserting the core insert 2 into the steel coil is half of the width of the steel coil, and the measured width of the steel coil is 1000 mm, so the depth of inserting the core insert 2 into the steel coil at 500 mm;

[0033] 2) As the diameter of the steel coil increases, according to the temperature measurement point set for the edge of the steel coil, insert an edge insert 1 into the place where the thermocouple 4 of the steel coil is not damaged by pressure, and make the edge insert The outer surface of 1 faces the oute...

Embodiment 2

[0039] A method for using a temperature measuring device for steel coils in a bell annealing furnace, the steps of which are:

[0040] 1) According to the temperature measurement point set for the steel coil, during the coiling process of the steel strip, insert the two core inserts 2 into the place where the thermocouple 4 of the steel coil will not be damaged by pressure, and make the outer core insert 2 The side faces the outer normal of the steel coil; the depth of one of the core inserts 2 inserted into the steel coil is two-thirds of the width of the steel coil, and the measured width of the steel coil is 1020 mm, so the core insert 2 is inserted into the steel coil. The depth of the coil is 680 mm; the depth of another core insert 2 inserted into the steel coil is 1 / 2 of the width of the steel coil, so the depth of the core insert 2 inserted into the steel coil is 510 mm;

[0041] 2) As the diameter of the steel coil increases, according to the temperature measurement p...

Embodiment 3

[0047] A method for using a temperature measuring device for steel coils in a bell annealing furnace, the steps of which are:

[0048] 1) According to the temperature measurement point set for the steel coil, during the coiling process of the steel strip, insert the two core inserts 2 into the place where the thermocouple 4 of the steel coil will not be damaged by pressure, and make the outer core insert 2 The side faces the outer normal of the steel coil; the depth of one of the core inserts 2 inserted into the steel coil is three-quarters of the width of the steel coil, and the measured width of the steel coil is 1050 mm, so the core insert 2 is inserted into the steel coil. The depth of the coil is 788 mm; the depth of another core insert 2 inserted into the steel coil is 2 / 3 of the width of the steel coil, so the depth of the core insert 2 inserted into the steel coil is 700 mm;

[0049] 2) As the diameter of the steel coil increases, according to the temperature measureme...

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Abstract

The invention relates to equipment for measuring the temperature of a steel coil in a top hat annealing furnace and a using method of the equipment. The equipment consists of an edge insertion strip, a core insertion strip, thermocouple slots on the edge and core insertion strips, thermocouples, a non-paper recorder, thermocouple compensation lead wires, and a flexible thermocouple terminal connection tube. The two long edge sides of the outer side surfaces of the edge and core insertion strips are slope-shaped, and the cross sections formed by the sloped-shaped edge sides of the edge and core insertion strips are trapezoid. The using method of the equipment comprises the following steps: in strip steel coilling process, firstly inserting the core insertion strip into the steel coil, and enabling the outer side surface of the core insertion strip to face the outer normal of the steel coil; then inserting the edge insertion strip into the steel coil according to a temperature point arranged on the edge part of the steel coil, and enabling the outer side surface of the edge insertion strip to face the outer normal of the steel coil; when the steel coil enters the top hat annealing furnace, inserting the thermocouples into the edge and core insertion strips respectively; and after the steel coil is subjected to annealing, acquiring and processing data recorded by each channel of the non-paper recorder. The equipment can perform validation and model modification on a top hat furnace model, and can dynamically track the temperature rise of the steel coil and atmosphere in the furnace in the whole process of annealing.

Description

technical field [0001] The invention relates to a temperature measuring device and a using method thereof, in particular to a temperature measuring device used for a steel coil in a bell annealing furnace and a using method thereof. Background technique [0002] The existing bell-type furnace annealing equipment performs annealing heat treatment on cold-rolled strip steel coils, mainly to make the cold and hot spots of the steel coils in the furnace meet the requirements of the annealing process system during the annealing process, so as to obtain strip products with qualified mechanical properties and surface properties. The annealing process system is mainly calculated by the mathematical model of the bell-type furnace. At present, there is no effective test method that can not only ensure the surface quality of the strip, but also accurately measure and dynamically track the temperature change history of each point inside the annealed steel coil of the bell-type furnace. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/673
Inventor 段广东李卫杰王晓亮
Owner WISDRI WUHAN WIS IND FURNACE
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