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1. (CN1196757) Method and apparatus to determine and control carbon content of steel in BOF vessel

Office : China
Application Number: 96197034.0 Application Date: 06.09.1996
Publication Number: 1196757 Publication Date: 21.10.1998
Grant Number: 1068633 Grant Date: 18.07.2001
Publication Kind : C
Prior PCT appl.: Application Number:PCTUS9614334 ; Publication Number:9716571 Click to see the data
IPC:
C21C 5/30
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
C
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
5
Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel
28
Manufacture of steel in the converter
30
Regulating or controlling the blowing
CPC:
C08J 7/04
C08J 2369/00
C09D 5/002
C09D 163/00
C09D 183/06
C09D 183/14
Y10T 428/31511
Y10T 428/31515
Y10T 428/31663
C08J 7/0427
C08J 2363/00
C08J 2383/06
C08K 3/22
C09D 7/61
C09D 7/67
G02C 7/02
Applicants: Bethlehen Steel Corp.
伯利恒钢铁公司
Inventors: Sharan Alock
沙润·阿洛克
Agents: wang dazuo
中原信达知识产权代理有限责任公司
Priority Data: 08550590 31.10.1995 US
Title: (EN) Method and apparatus to determine and control carbon content of steel in BOF vessel
(ZH) 测定和控制BOF转炉中的钢的碳含量的方法和设备
Abstract: front page image
(EN) Apparatus for determining in-blow % carbon content and/or the First Turn Down Carbon of a BOF heat includes a light sensor housed within a temperature regulated case having a sighting window including air wipe means to shield the light sensor from steelmaking dust and fume. The apparatus also includes a means to generate a signal that corresponds to the amount of oxygen blown into the BOF during a heat, and a programmable logic controller. The logic controller is programmed to continuously process oxygen blown signals from the signal generating means, and light intensity signals received from the light sensor. The program calculates continuous in-blow % carbon content of the heat based upon the difference in light intensity from a point of maximum light intensity emitted from the BOF vessel in relation to the amount of oxygen blown into the BOF vessel during the same period of time.
(ZH)

测量BOF钢水的在吹碳含量%和/或第一次拉碳量(First Turn Down Carbon)的设备,包括装在具有测视宽的温度可调的外壳中光传感器,它包括防止其它炼钢粉尘和烟雾侵害的空气刷。该设备还包括产生与冶炼期吹入BOF中的氧量相对应的信号的装置和可偏程的控制器。使该逻辑控制器编程以便连续处理发自该信号发生装置的吹氧信号及收自光传感器的光强度信号。该程序根据从自发BOF转炉的同一时间中吹入此BOF中的氧量相应的最大光强度差计算该钢水的在吹碳含量%。


Also published as:
MXPA/a/1998/002959EP0859866EP1046720CA2235499KR1019990063751AU1996069683
WO/1997/016571