KR940014819A

KR940014819A - Melting temperature correction method using characteristic temperature curve

Info

Publication number: KR940014819A
Application number: KR1019920026519A
Authority: KR
Inventors: 이상호; 서광용
Original assignee: 박득표; 포항종합제철 주식회사; 백덕현; 재단법인산업과학기술연구소
Priority date: 1992-12-30
Filing date: 1992-12-30
Publication date: 1994-07-19
Also published as: KR940009668B1

Abstract

본 발명은 고로조업시 용선온도예측을 위한 노열예측시스템에 사용되는 용선온도보정방법에 관한 것으로서, 각 출선구별로 일정한 주기로 용선온도 레벨의 차이를 보이는 출선구별 특성용선온도패턴을 정의하여 이미 통계적으로 처리된 보정용선온도수식과 함께 현재의 용선온도레벨을 결정하여 필요로 하는 시스템에 제공하는 용선은 도보정방법을 제공하고자 하는데, 그 목적이 있다.The present invention relates to a molten iron temperature correction method used in the furnace prediction system for the molten iron temperature prediction in the blast furnace operation, by defining the characteristic molten iron temperature pattern for each molten iron outlet port showing a difference in the molten iron temperature level at regular intervals for each outlet, It is to provide a walking correction method for the molten iron that is provided to the required system by determining the current molten iron temperature level together with the corrected molten iron temperature equation.

본 발명은 출선구별 온도편차유무를 판정하는 단계; 대통교체유무 및 장시간 통휴지판단을 실시하는 단계; 평량기 이상유무를 판단하는 단계; 및 용선온도보정실(A)을 구하여 용선온도를 보장하는 단계를 포함하여 구성되는 용선온도 보정방법에 있어서, 출선후 경과시간에 다른 용선온도변화값을 측정해서 그래프화시킨 다음, 최소자 승법을 적용시켜 최적의 상관율을 갖는 출선구별 특성온도곡선식(B)을 구하는 단계; 및 상기 용선온도 보정식(A)에 의해 구한 용선온도와 상기 출선구별 특성온도곡선식(B)에 의해 구한 용선온도를 비교하여 용선온도를 조업에서 기준으로 하는 온도수준으로 보정하는 단계를 포함하여 구성되는 출선구별 특성온도 곡선식을 이용한 용선온도 보정방법을 그 요지로 한다.The present invention comprises the steps of determining the presence or absence of temperature deviation for each outlet; Carrying out a judgment on whether there is a replacement and a long pause; Determining whether the basis weight is abnormal; And obtaining a molten iron temperature correction room (A) to ensure the molten iron temperature. The method for correcting the molten iron temperature includes measuring and graphing another molten iron temperature change at an elapsed time after leaving the ship, and then performing a least square method. Obtaining a characteristic temperature curve (B) for each exit opening having an optimum correlation ratio by applying; And comparing the molten iron temperature obtained by the molten iron temperature correction formula (A) with the molten iron temperature obtained by the characteristic temperature curve (B) of each outlet port and correcting the molten iron temperature to a temperature level based on the operation. The method of correction of the molten iron temperature using the characteristic temperature curve of each outgoing exit is made into the summary.

Description

Melting temperature correction method using characteristic temperature curve

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명의 용선온도보정방법을 나타내는 개략도,3 is a schematic view showing the molten iron temperature correction method of the present invention,

제5도는 출선구별 출선후 경과시간에 따른 용선온도 변화를 나타내는 그래프,5 is a graph showing the change in the molten iron temperature according to the elapsed time after the departure time,

제6도는 본 발명과 종래의 용선온도보정방법에 관한 용선온도변화를 나타내는 그래프.6 is a graph showing the change in the molten iron temperature according to the present invention and the conventional molten iron temperature correction method.

Claims

Determining the temperature deviation of each exit port; Carrying out a judgment on whether there is a replacement and a long pause; Determining whether the basis weight is abnormal; And calculating the molten iron temperature by obtaining the molten iron temperature correction chamber (A). Obtaining a characteristic temperature curve (B) for each exit opening having an optimum correlation ratio by applying; And comparing the molten iron temperature obtained by the molten iron temperature correction formula (A) with the molten iron temperature obtained by the characteristic temperature curve (B) of each outlet port and correcting the molten iron temperature to a temperature level based on the operation. Melting temperature correction method using the characteristic temperature curve of each outlet.

※ Note: This is to be disclosed based on the first application.