Method for measuring blast furnace lining corroding thickness

Abstract

The invention relates to a method for measuring corrosion thickness, especially a method for measuring corrosion thickness of blast furnace lining, aiming to solve technical problems that the bull couple can not cover circumferential direction when being previously embedded in blast furnace hearth causing large limitation for calculating corrosion thickness of blast furnace hearth according to the couple detecting data. A method for measuring corrosion thickness of blast furnace lining, comprising: a, a temperature and flow rate sensor on the cooling wall collects and inputs data into a computer via an isolation baffle and an adaptor, reads flow temperature t<0> and heat flow intensity Q of each cooling wall from the cooling wall water temperature difference and heat flow intensity database, b, measuring the cooling wall heat side temperature according to Fourier formula: t<1>=Q*S<1> / lambda <1>+t<0>; c, measuring carbon brick cold side temperature: t<2>=Q*S<2> / lambda<2>+t<1>; d, measuring carbon brick heat side temperature: t<3>=Q*S<3> / lambda <3>+t<2>, determining position of blast furnace hearth iron solidification corrosion line at 1150 degrees centigrade, and finally surveying and drawing corrosion curve of blast furnace hearth at 1150 degrees centigrade. The invention can automatically measure blast furnace lining corrosion degree in each part of the blast furnace and draw the corrosion curve.

Description

Technical field: [0001] The invention relates to a method for measuring the erosion thickness, in particular to a method for measuring the erosion thickness of the blast furnace lining. The on-line automatic detection device for the heat flow intensity of the stave is used to detect the data of the heat flow intensity of each stave and the temperature of the outlet water, which is automatically measured online by a computer. The degree of lining erosion in various parts of the blast furnace and the method of drawing the erosion curve. Background technique: [0002] The blast furnace has been in service for 12 to 15 years, and the main reason affecting the life of the blast furnace is the degree of hearth erosion. Various parts of the blast furnace body adopt cooling staves and furnace linings of different materials. The furnace skin is drilled to detect the thickness of the furnace wall during the normal planned maintenance of the furnace body, furnace waist and belly. The t...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for measuring the erosion thickness of the blast furnace lining, which mainly solves the technical problem that the multi-head galvanic couple embedded in the hearth cannot be covered in the circumferential direction, and the galvanic couple detection data is used to calculate the erosion thickness of the hearth. Use the on-line automatic detection device for the heat flow intensity of the furnace body, the furnace waist, the bosh, and the hearth stave to detect the data of the heat flow intensity of each stave and the temperature of the stave outlet water, combined with the thermal conductivity of different materials and the corresponding structural size

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