IT1260940B - Trattamento superficiale di refrattari - Google Patents

Trattamento superficiale di refrattari

Info

Publication number
IT1260940B
IT1260940B ITTO930549A ITTO930549A IT1260940B IT 1260940 B IT1260940 B IT 1260940B IT TO930549 A ITTO930549 A IT TO930549A IT TO930549 A ITTO930549 A IT TO930549A IT 1260940 B IT1260940 B IT 1260940B
Authority
IT
Italy
Prior art keywords
jet
oxygen
washing
reaction zone
carrier gas
Prior art date
Application number
ITTO930549A
Other languages
English (en)
Inventor
Jean-Pierre Meynckens
Original Assignee
Jean-Pierre Meynckens
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 Jean-Pierre Meynckens filed Critical Jean-Pierre Meynckens
Publication of ITTO930549A0 publication Critical patent/ITTO930549A0/it
Publication of ITTO930549A1 publication Critical patent/ITTO930549A1/it
Application granted granted Critical
Publication of IT1260940B publication Critical patent/IT1260940B/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
    • F27D25/008—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag using fluids or gases, e.g. blowers, suction units
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/44—Refractory linings
    • C21C5/441—Equipment used for making or repairing linings
    • C21C5/443—Hot fettling; Flame gunning
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings ; Increasing the durability of linings; Breaking away linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings ; Increasing the durability of linings; Breaking away linings
    • F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining
    • F27D1/1642—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus
    • F27D1/1647—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus the projected materials being partly melted, e.g. by exothermic reactions of metals (Al, Si) with oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Cleaning In General (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Arc Welding In General (AREA)

Abstract

Viene descritto un procedimento per pulire la superficie di una struttura refrattaria e temperatura elevata, in particolare in preparazione di una saldatura ceramica. Il procedimento comprende il lancio contro, detta superficie di un getto di polvere che trasporta particelle di combustibile in un gas di trasporto contenente ossigeno, per cui le particelle di. combustibile e l'ossigeno, nel gas di trasporto reagiscono in una zona di reazione su detta superficie, e contemporaneamente il lancio, contro detta superficie di un getto di. lavaggio comprendente ossigeno, preferibilmente ad una velocità di emissione superiore a quella del getto di polvere, per lavare detta superficie in prossimità della zona di reazione.
ITTO930549A 1992-07-31 1993-07-22 Trattamento superficiale di refrattari IT1260940B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9216348A GB2269223B (en) 1992-07-31 1992-07-31 Surface treatment of refractories

Publications (3)

Publication Number Publication Date
ITTO930549A0 ITTO930549A0 (it) 1993-07-22
ITTO930549A1 ITTO930549A1 (it) 1995-01-22
IT1260940B true IT1260940B (it) 1996-04-29

Family

ID=10719648

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO930549A IT1260940B (it) 1992-07-31 1993-07-22 Trattamento superficiale di refrattari

Country Status (16)

Country Link
US (1) US5435948A (it)
KR (1) KR940005809A (it)
CN (1) CN1082015A (it)
AU (1) AU662634B2 (it)
BE (1) BE1006267A3 (it)
BR (1) BR9302586A (it)
CA (1) CA2101351A1 (it)
DE (1) DE4324516A1 (it)
ES (1) ES2088725B1 (it)
FR (1) FR2694384B1 (it)
GB (1) GB2269223B (it)
IT (1) IT1260940B (it)
LU (1) LU88386A1 (it)
NL (1) NL9301316A (it)
RU (1) RU2098390C1 (it)
ZA (1) ZA935516B (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5591271A (en) * 1994-08-26 1997-01-07 Comesi S.A.I.C. Process for cleaning inductor channels of furnaces melting non-ferrous metal alloys
GB9513126D0 (en) * 1995-06-28 1995-08-30 Glaverbel A method of dressing refractory material bodies and a powder mixture for use therein
US6186869B1 (en) * 1999-02-12 2001-02-13 Cetek Limited Cleaning using welding lances and blasting media
US6517341B1 (en) * 1999-02-26 2003-02-11 General Electric Company Method to prevent recession loss of silica and silicon-containing materials in combustion gas environments
RU2158403C1 (ru) * 1999-04-30 2000-10-27 Щепетьева Нина Петровна Способ ремонта огнеупорной футеровки пода тепловых агрегатов методом керамической наплавки и термитно-огнеупорная масса для керамической наплавки
DE10131646A1 (de) * 2001-06-29 2003-01-16 Beck & Kaltheuner Fa Verfahren zum Reinigen von heißen Metall- und/oder Schlackenreste aufweisenden Oberflächen
US20080185027A1 (en) * 2007-02-06 2008-08-07 Shamp Donald E Glass furnace cleaning system
CN102086128B (zh) * 2010-12-10 2013-02-13 山西高科耐火材料股份有限公司 高温窑炉陶瓷焊接材料及方法
RU2617154C1 (ru) * 2015-10-21 2017-04-21 Общество с ограниченной ответственностью "ТеплоЭнергия" Способ очистки поверхности огнеупорных структур при повышенной температуре
JP6747953B2 (ja) * 2016-12-02 2020-08-26 黒崎播磨株式会社 コークス炉炉壁の切削方法
US11365470B2 (en) * 2020-01-08 2022-06-21 General Electric Company Ceramic coating formation using temperature controlled gas flow to smooth surface

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US936981A (en) * 1909-07-09 1909-10-12 August Heckscher Method of disintegrating and removing annular salamanders in nodulizing-kilns.
US3365523A (en) * 1964-12-09 1968-01-23 Union Carbide Corp Method of removing encrusted slag from furnaces
BE757466A (it) * 1969-11-04 1971-04-14 Glaverbel
JPS496722A (it) * 1972-05-08 1974-01-21
US4017960A (en) * 1975-11-26 1977-04-19 Kureha Kagaku Kogyo Kabushiki Kaisha Method of repairing injured portion of refractory furnace-lining
GB2035524B (en) * 1978-11-24 1982-08-04 Coal Ind Flame spraying refractory material
SU914636A1 (ru) * 1979-04-16 1982-03-23 Do Nii Chernoj Metallurgii Способ факельного торкретирования футеровки металлургических агрегатов 1 2
DE3050220A1 (en) * 1980-02-01 1982-03-18 V Antonov Method of torch gunite application of linings of metallurgical installations
SU973626A1 (ru) * 1980-11-17 1982-11-15 Карагандинский металлургический комбинат Способ факельного торкретировани сводов пламенных отражательных металлургических печей
EP0062986B1 (en) * 1981-04-06 1985-09-25 Kawasaki Steel Corporation Lance for repairing refining vessel
JPS5947005B2 (ja) * 1981-04-30 1984-11-16 新日本製鐵株式会社 高炉炉壁補修方法
JPS586869A (ja) * 1981-07-02 1983-01-14 Mitsubishi Electric Corp コイル材料の巻戻し制御方式
GB2170122B (en) * 1985-01-26 1988-11-30 Glaverbel Process of forming a refractory mass and lance for spraying particulate exothermically oxidisable material
GB2170191B (en) * 1985-01-26 1988-08-24 Glaverbel Forming refractory masses and composition of matter for use in forming such refractory masses
LU86431A1 (fr) * 1986-05-16 1987-12-16 Glaverbel Procede de formation d'une masse refractaire sur une surface et melange de particules pour former une telle masse
GB8615431D0 (en) * 1986-06-24 1986-07-30 Somafer Sa Treatment of refractory lined transfer channels
US4875662A (en) * 1986-10-29 1989-10-24 Bmi, Inc. Method and apparatus for relining blast furnace
GB8729418D0 (en) * 1987-12-17 1988-02-03 Glaverbel Surface treatment of refractories
GB8817764D0 (en) * 1988-07-26 1988-09-01 Glaverbel Carrier repair
US5202090A (en) * 1988-07-26 1993-04-13 Glaverbel Apparatus for ceramic repair
GB8916951D0 (en) * 1989-07-25 1989-09-13 Glaverbel Ceramic welding process and powder mixture for use in the same
FR2650384B1 (fr) * 1989-07-28 1994-07-22 Petroles Cie Techniques Procede de nettoyage de surfaces chaudes de fours, ainsi qu'une installation et des granules pour sa mise en oeuvre
LU87602A1 (fr) * 1989-10-05 1991-05-07 Glaverbel Procede de formation d'une masse refractaire et lance de projection d'un melange de particules

Also Published As

Publication number Publication date
GB2269223B (en) 1996-03-06
ZA935516B (en) 1994-02-24
CN1082015A (zh) 1994-02-16
ES2088725A2 (es) 1996-08-16
FR2694384B1 (fr) 1994-10-28
ITTO930549A1 (it) 1995-01-22
BR9302586A (pt) 1994-03-01
AU662634B2 (en) 1995-09-07
GB9216348D0 (en) 1992-09-16
ES2088725B1 (es) 1997-11-16
CA2101351A1 (en) 1994-02-01
FR2694384A1 (fr) 1994-02-04
LU88386A1 (fr) 1994-04-01
GB2269223A (en) 1994-02-02
US5435948A (en) 1995-07-25
DE4324516A1 (de) 1994-02-03
BE1006267A3 (fr) 1994-07-05
NL9301316A (nl) 1994-02-16
RU2098390C1 (ru) 1997-12-10
AU4133693A (en) 1994-02-03
KR940005809A (ko) 1994-03-22
ITTO930549A0 (it) 1993-07-22
ES2088725R (it) 1997-06-01

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970513