FR2313451A1 - Recovering iron from wet rolling mill sludge - where sludge is dried with waste heat from a sintering belt - Google Patents

Recovering iron from wet rolling mill sludge - where sludge is dried with waste heat from a sintering belt

Info

Publication number
FR2313451A1
FR2313451A1 FR7606027A FR7606027A FR2313451A1 FR 2313451 A1 FR2313451 A1 FR 2313451A1 FR 7606027 A FR7606027 A FR 7606027A FR 7606027 A FR7606027 A FR 7606027A FR 2313451 A1 FR2313451 A1 FR 2313451A1
Authority
FR
France
Prior art keywords
sludge
rolling mill
sinter
dried
grease
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
FR7606027A
Other languages
French (fr)
Other versions
FR2313451B1 (en
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan 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 Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of FR2313451A1 publication Critical patent/FR2313451A1/en
Application granted granted Critical
Publication of FR2313451B1 publication Critical patent/FR2313451B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/005—Preliminary treatment of scrap
    • 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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Sludge (AREA)

Abstract

Moisture and lubricating grease are removed from rolling mill sludge found in the drain water pit of steel rolling plant, so that the sludge can be used in mfg. sinter. The initial sludge contains >=20% water which is first removed followed by removal of the grease. The moisture content is reduced to 1-10% and the sludge is then fed in uniform amts. to part of a sintering machine, such as the cooler inlet or outlet, the conveyor near the hot sieve for returning the fines, or the return chute, so that the remaining moisture and the grease are removed by the heat available from the hot sinter. The initial sludge drying is pref. achieved using heat from the sinter cooler, or dry mill scale may be added to the wet sludge. Used for recovery of iron from rolling mill sludge.
FR7606027A 1975-03-08 1976-03-03 Recovering iron from wet rolling mill sludge - where sludge is dried with waste heat from a sintering belt Granted FR2313451A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2762875A JPS5429281B2 (en) 1975-03-08 1975-03-08

Publications (2)

Publication Number Publication Date
FR2313451A1 true FR2313451A1 (en) 1976-12-31
FR2313451B1 FR2313451B1 (en) 1978-11-17

Family

ID=12226211

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7606027A Granted FR2313451A1 (en) 1975-03-08 1976-03-03 Recovering iron from wet rolling mill sludge - where sludge is dried with waste heat from a sintering belt

Country Status (5)

Country Link
JP (1) JPS5429281B2 (en)
CA (1) CA1078628A (en)
DE (1) DE2606272C3 (en)
FR (1) FR2313451A1 (en)
IT (1) IT1055362B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402467A1 (en) * 1977-09-09 1979-04-06 Uddeholms Ab PROCESS FOR SEPARATING A CUP FINE GRAIN GRANULAR SOLID FROM A SATURATED LIQUID
CN112280973A (en) * 2020-11-02 2021-01-29 宝钢湛江钢铁有限公司 Method for co-processing emulsified oil sludge by sintering system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19529217C1 (en) * 1995-08-09 1996-08-29 Dsu Gmbh Agglomeration of roller scale sludge
JP2002275549A (en) * 2001-03-14 2002-09-25 Nkk Corp Method for treating oily sludge
JP6183623B2 (en) * 2014-03-28 2017-08-23 Ｊｆｅスチール株式会社 Method for producing sintered ore using iron-based oil-containing sludge as raw material and method for treating iron-based oil-containing sludge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402467A1 (en) * 1977-09-09 1979-04-06 Uddeholms Ab PROCESS FOR SEPARATING A CUP FINE GRAIN GRANULAR SOLID FROM A SATURATED LIQUID
CN112280973A (en) * 2020-11-02 2021-01-29 宝钢湛江钢铁有限公司 Method for co-processing emulsified oil sludge by sintering system

Also Published As

Publication number Publication date
JPS5429281B2 (en) 1979-09-21
IT1055362B (en) 1981-12-21
DE2606272C3 (en) 1979-04-19
CA1078628A (en) 1980-06-03
AU1102776A (en) 1977-09-22
FR2313451B1 (en) 1978-11-17
DE2606272A1 (en) 1976-09-16
DE2606272B2 (en) 1978-08-24
JPS51103004A (en) 1976-09-11

Similar Documents

Publication Publication Date Title
FR2313451A1 (en) Recovering iron from wet rolling mill sludge - where sludge is dried with waste heat from a sintering belt
JPS5266805A (en) Overall treatment of metal-containing powdered material
GB1372466A (en) Processing spent coffee grounds
DE3862454D1 (en) METHOD FOR PRODUCING BINDERLESS BRIQUETTES FROM STEEL DUST.
CA1153200A (en) Process for drying and modification of organic solid materials
ATE336562T1 (en) METHOD FOR TREATING OIL SEED FLAKES PRIOR TO OIL EXTRACTION
RU2001119454A (en) METHOD FOR PROCESSING OIL SEED FLAKES BEFORE OIL EXTRACTION
ES8300838A1 (en) Method for the removal of dust and heat from cooling gases used in the dry cooling of coke.
US1780833A (en) Method of processing furnace dust
Fosnacht Recycling of Ferrous Steel Plant Fines. State-of-the-Art
JPS579841A (en) Manufacture of unfired briquetted ore for iron manufacture
JPS5579834A (en) Oil-containing sludge treating method
SU129131A1 (en) The method of preparation for drying wet fine-grained coal, intended for blast furnace smelting
JPS5539266A (en) Sludge treating method
JPS5573834A (en) Manufacture of sintered ore with superior reducibility
RU97107736A (en) CARBON-CONTAINING BRIQUETTES AND METHOD FOR ITS OBTAINING
JPS56139633A (en) Manufacture of pellet for steel manufacture using sludge containing oil and iron
JPS51130292A (en) Collection method of sample pieces such as ore
JPS52148865A (en) Blast dehumidifier for blast furnace
JPS61266527A (en) Method for recycling water crushed slag generated in nonferrous metal smelting
JPS522806A (en) Process for treatment of ironmaking dust containing zinc
SU117378A1 (en) Method for processing natural powdered sodium sulfate
JPS5732798A (en) Treatment of sludgelike material
JPS5261108A (en) Dezincifition method of blast furnace dust and its apparatus
JPS5339905A (en) Operating method for sintering machine

Legal Events

Date Code Title Description
ST Notification of lapse