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Apparatus and method for measuring height of molten material in blast furnace

A measuring device and molten material technology, applied in the direction of measuring device, inspection device, lubrication indicator device, etc., can solve problems such as leakage of charge, overflow of furnace, broken furnace, etc.

Active Publication Date: 2020-01-14
FBG KOREA INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In this type of furnace, if the amount (volume) of the charged material is excessively increased, the furnace will be broken and the charged material will leak to the outside or overflow from the upper end of the furnace

Method used

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  • Apparatus and method for measuring height of molten material in blast furnace
  • Apparatus and method for measuring height of molten material in blast furnace
  • Apparatus and method for measuring height of molten material in blast furnace

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Embodiment Construction

[0031] Hereinafter, the apparatus and method for measuring the melt height of a melting furnace according to preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0032] figure 1 It is a structural diagram of the height measuring device of the furnace in the preferred embodiment of the present invention. figure 2 and image 3 It is a figure which exemplifies the structure of the measuring part installed in a furnace.

[0033] figure 2 A front view showing a furnace provided with a measuring section, image 3 A side cutaway view of the furnace is shown.

[0034] Hereinafter, terms indicating directions such as "left side", "right side", "front", "rear", "upper" and "lower" indicate respective directions with reference to states shown in respective drawings.

[0035] The present invention measures the horizontal deformation and vertical deformation of the surface of the furnace based on the temperature an...

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PUM

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Abstract

Provided are an apparatus and a method for measuring the height of a molten material in a blast furnace, the apparatus comprising: a measurement part provided on the surface of the blast furnace and measuring the vertical and horizontal strain rates, of the surface of the blast furnace, caused by the height change of the molten material; and a control part for monitoring the height of the molten material by using the vertical and horizontal strain rates measured by the measurement part, and controlling the operations of the blast furnace on the basis of a result of monitoring, thereby measuring the vertical and horizontal strain rates of the surface of the blast furnace by using a strain sensor having an optical fiber grating sensor applied thereto, and enabling the height of the molten material to be measured on the basis of the strain rate change according to the amount of the molten material.

Description

technical field [0001] The present invention relates to a melt height measuring device and method for a melting furnace, and more particularly, to a melt height measuring device and method for a melting furnace for measuring the height of a melt melted in a furnace using a strain sensor using a fiber grating sensor. Background technique [0002] The melting furnace is a furnace used in the process (metal smelting) of separating gangue from metal ore to obtain metal in a molten state, and is composed of a vertical furnace in which refractory bricks are stacked. [0003] Generally, in the furnace, iron ore and coke as raw materials are loaded from the upper part, and high-temperature hot air of about 1000 to 1200 ° C and 5 g / Nm 3 up to 50g / Nm 3 The water contained in it is put into the finely powdered bituminous coal as an auxiliary fuel, the carbon dioxide produced by oxidation of the fuel loaded from the top and the high-temperature hot air blown from the bottom, and the ox...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B7/24G01F23/292
CPCC21B7/24G01F23/292
Inventor 李锦锡
Owner FBG KOREA INC
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