JPS5792184A - Method for controlling concentration of acid to be supplied to pickling vessel - Google Patents

Method for controlling concentration of acid to be supplied to pickling vessel

Info

Publication number
JPS5792184A
JPS5792184A JP16926680A JP16926680A JPS5792184A JP S5792184 A JPS5792184 A JP S5792184A JP 16926680 A JP16926680 A JP 16926680A JP 16926680 A JP16926680 A JP 16926680A JP S5792184 A JPS5792184 A JP S5792184A
Authority
JP
Japan
Prior art keywords
acids
vessel
ready mixed
pickling
flowmeter
Prior art date
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.)
Granted
Application number
JP16926680A
Other languages
Japanese (ja)
Other versions
JPS5825751B2 (en
Inventor
Hideyuki Takahashi
Mitsuru Koriki
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
Priority to JP55169266A priority Critical patent/JPS5825751B2/en
Publication of JPS5792184A publication Critical patent/JPS5792184A/en
Publication of JPS5825751B2 publication Critical patent/JPS5825751B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/36—Regeneration of waste pickling liquors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

PURPOSE:To rationalize pickling processes by controlling the flow rates of the acids recovered by concn. and regeneration of waste acids from a pickling vessel, industrial water and fresh acids to maibtain the concn. of ready mixed acids constant and supplying the ready mixed acids to the pickling vessel. CONSTITUTION:A steel strip or the like is fed continuously to a pickling vessel 1, and after prescribed pickling work, it is delivered to the outside of the vessel. The waste acids from the vessel 1 are concd, and regenerated in a recovering acid installation 2, and are stored in a recovered acid tank 3. The respective detection signals of a densitometer 33 and a flowmeter 34 for recovered acids, a flowmeter 61 for undustrial water, a densitometer 37 and a flowmeter 74 for fresh acids, and level gage 41, a densitomter 83, and a flowmeter 82 for ready mixed acids in a feed acid tank 4 are fed to a controller 5. Receiving the respective detection signals, the controller 5 compares these with respective set values, and feed respective flow rate control signals to flow rate regulating valves 35, 62, 75, thereby controlling the concn. of the ready mixed acids to a target concn. and maintaining the level of the ready mixed acids constant. A flow rate regulating valve 81 is controlled by the controller 5 to maintain the flow rate of the ready mixed acids to be supplied to the vessel 1 constant.
JP55169266A 1980-12-01 1980-12-01 Method for controlling the concentration of acid supplied to the pickling tank Expired JPS5825751B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55169266A JPS5825751B2 (en) 1980-12-01 1980-12-01 Method for controlling the concentration of acid supplied to the pickling tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55169266A JPS5825751B2 (en) 1980-12-01 1980-12-01 Method for controlling the concentration of acid supplied to the pickling tank

Publications (2)

Publication Number Publication Date
JPS5792184A true JPS5792184A (en) 1982-06-08
JPS5825751B2 JPS5825751B2 (en) 1983-05-30

Family

ID=15883317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55169266A Expired JPS5825751B2 (en) 1980-12-01 1980-12-01 Method for controlling the concentration of acid supplied to the pickling tank

Country Status (1)

Country Link
JP (1) JPS5825751B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59197577A (en) * 1983-04-20 1984-11-09 Kawasaki Steel Corp Apparatus for preparing pickling liquid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59197577A (en) * 1983-04-20 1984-11-09 Kawasaki Steel Corp Apparatus for preparing pickling liquid

Also Published As

Publication number Publication date
JPS5825751B2 (en) 1983-05-30

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