FR2090168B1 - - Google Patents

Info

Publication number
FR2090168B1
FR2090168B1 FR7118253A FR7118253A FR2090168B1 FR 2090168 B1 FR2090168 B1 FR 2090168B1 FR 7118253 A FR7118253 A FR 7118253A FR 7118253 A FR7118253 A FR 7118253A FR 2090168 B1 FR2090168 B1 FR 2090168B1
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7118253A
Other versions
FR2090168A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Publication of FR2090168A1 publication Critical patent/FR2090168A1/fr
Application granted granted Critical
Publication of FR2090168B1 publication Critical patent/FR2090168B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/006—Automatically controlling the process
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/24—Test rods or other checking devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02836—Flow rate, liquid level
FR7118253A 1970-05-20 1971-05-19 Expired FR2090168B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45043510A JPS5025415B1 (fr) 1970-05-20 1970-05-20

Publications (2)

Publication Number Publication Date
FR2090168A1 FR2090168A1 (fr) 1972-01-14
FR2090168B1 true FR2090168B1 (fr) 1974-03-08

Family

ID=12665717

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7118253A Expired FR2090168B1 (fr) 1970-05-20 1971-05-19

Country Status (7)

Country Link
US (1) US3702694A (fr)
JP (1) JPS5025415B1 (fr)
CA (1) CA933272A (fr)
DE (1) DE2124969C3 (fr)
FR (1) FR2090168B1 (fr)
GB (1) GB1342927A (fr)
NL (1) NL158849B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772504A (en) * 1971-12-23 1973-11-13 Steel Corp Apparatus for operating a blast furnace
JPS5691680U (fr) * 1979-12-17 1981-07-21
JPS6089282A (ja) * 1983-10-21 1985-05-20 Hitachi Ltd 記号読取装置
GB2150692A (en) * 1983-11-30 1985-07-03 Squibb & Sons Inc Apparatus and method for coating tablets
JPS60184189U (ja) * 1984-05-14 1985-12-06 ニツタン株式会社 消火制御装置
JPS63178686A (ja) * 1987-01-19 1988-07-22 Ace Denken:Kk 遊技場における不正検出装置
JPS63211887A (ja) * 1987-02-27 1988-09-02 Taihei Kogyo Kk 建造物監視システム
GB2211938A (en) * 1987-11-05 1989-07-12 Atomic Energy Authority Uk Acoustic monitoring of plant operation
US4993264A (en) * 1989-03-02 1991-02-19 Exxon Research And Engineering Company Passive acoustics process to monitor fluidized bed level
DE102009034353A1 (de) * 2008-12-15 2010-06-24 Siemens Aktiengesellschaft Schmelzofen

Also Published As

Publication number Publication date
DE2124969B2 (de) 1973-05-03
US3702694A (en) 1972-11-14
GB1342927A (en) 1974-01-10
NL158849B (nl) 1978-12-15
CA933272A (en) 1973-09-04
DE2124969C3 (de) 1973-11-22
NL7106901A (fr) 1971-11-23
DE2124969A1 (de) 1971-12-02
JPS5025415B1 (fr) 1975-08-23
FR2090168A1 (fr) 1972-01-14

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Legal Events

Date Code Title Description
ST Notification of lapse