JPS5781915A - Cooling and exhaust heat recovering method for hot rolled sheet - Google Patents

Cooling and exhaust heat recovering method for hot rolled sheet

Info

Publication number
JPS5781915A
JPS5781915A JP55159022A JP15902280A JPS5781915A JP S5781915 A JPS5781915 A JP S5781915A JP 55159022 A JP55159022 A JP 55159022A JP 15902280 A JP15902280 A JP 15902280A JP S5781915 A JPS5781915 A JP S5781915A
Authority
JP
Japan
Prior art keywords
water
section
cooling
temp
level
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.)
Pending
Application number
JP55159022A
Other languages
Japanese (ja)
Inventor
Takeshi Nunokawa
Eigo Yagi
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 JP55159022A priority Critical patent/JPS5781915A/en
Publication of JPS5781915A publication Critical patent/JPS5781915A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To transform the potential heat of a hot rolled sheet into the effective energy, by separating hot water, obtained by cooling said sheet, from cold water with the aid of specific gravity difference between them, and by reusing it as cold water after cooling it through heat exchanging. CONSTITUTION:Vertically from upper and lower sides, cold water 8 is jetted to a traveling steel sheet 1 on hot line table rollers 2 through headers 5, 6, the hat recovered water is housed in a receiving tank 3. The tank 3 is partitioned into 4 sections with 3 weirs 11, and the water level of cooling water 8 is made to be lower successively from the min. temp. section A to the max. temp. section D. In zones of sections A, B, C, the recovered water is separated such that hot water is in the upper layer and cold water is in the lower layer with the aid of the specific gravity difference, and the hot water is transfered from the high water- level section to the low water-level one successively overflowing the weirs 11. The recovered water of highest temp. in the section D of lowest water level is sent to a heat exchanger 10 and in fed to circulate, as the cold water 8, to the low temp. section A of the highest water level again; thus the recovered heat is used as a heat source for other process.
JP55159022A 1980-11-11 1980-11-11 Cooling and exhaust heat recovering method for hot rolled sheet Pending JPS5781915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55159022A JPS5781915A (en) 1980-11-11 1980-11-11 Cooling and exhaust heat recovering method for hot rolled sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55159022A JPS5781915A (en) 1980-11-11 1980-11-11 Cooling and exhaust heat recovering method for hot rolled sheet

Publications (1)

Publication Number Publication Date
JPS5781915A true JPS5781915A (en) 1982-05-22

Family

ID=15684539

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55159022A Pending JPS5781915A (en) 1980-11-11 1980-11-11 Cooling and exhaust heat recovering method for hot rolled sheet

Country Status (1)

Country Link
JP (1) JPS5781915A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701409A1 (en) * 1993-02-12 1994-08-19 Clecim Sa Installation for treating metal strips
KR101140853B1 (en) * 2009-03-26 2012-07-12 현대제철 주식회사 Cooling device for run out table
CN103100565A (en) * 2012-12-12 2013-05-15 江苏熙友磁电科技有限公司 Copper bar emulsifying cleaning solution heat-exchange system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701409A1 (en) * 1993-02-12 1994-08-19 Clecim Sa Installation for treating metal strips
KR101140853B1 (en) * 2009-03-26 2012-07-12 현대제철 주식회사 Cooling device for run out table
CN103100565A (en) * 2012-12-12 2013-05-15 江苏熙友磁电科技有限公司 Copper bar emulsifying cleaning solution heat-exchange system

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