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고로 용융물 레벨 변화 추정을 위한 디지털 필터 설계

Title
고로 용융물 레벨 변화 추정을 위한 디지털 필터 설계
Translated Title
The Design of Filter for Hearth Liquid Level Estimation in Blast Furnace
Authors
조내수한무호권우현최연호
Issue Date
2012
Citation
센서학회지, 21(1), 75-81
Type
Article
Keywords
Hearth Liquid LevelBlast FurnaceEMFStrain GaugeDigital Filter
ISSN
1225-5475
Abstract
Optimizing the tapping time of a blast furnace is important to a stable operation and life extension. To optimize the tapping time of the blast furnace, the location of Hearth Liquid Level should be recognized. There are several ways to measure the hearth liquid level in the blast furnace, such as Electromotive Force(EMF) measurement, pressure measurement by putting in nitrogen probe and manometry with strain gauge. In this paper, it will be discussed using strain gauge among the three methods. Conventional strain gauge must be revised periodically. Since, internal pressure, temperature of internal refractory material and wind pressure have effect on the strain gauge. However, static pressure value is required to compensate. To solve these problems, this paper suggests finding relationship between Hearth Liquid Level and strain gauge output, adding digital filter in strain gauge. Using the proposed method, it was possible to estimate the hearth liquid level and determine the appropriate tapping time. Usefulness of the proposed method through simulations and experimental results are confirmed.
URI
http://hdl.handle.net/20.500.11750/4972
DOI
10.5369/JSST.2012.21.1.75
Publisher
한국센서학회
Files:
There are no files associated with this item.
Collection:
ETC1. Journal Articles


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