BE844264R - PROCESS FOR IMPROVING THE QUALITY OF REFRACTORY BRICKS - Google Patents

PROCESS FOR IMPROVING THE QUALITY OF REFRACTORY BRICKS

Info

Publication number
BE844264R
BE844264R BE6045613A BE6045613A BE844264R BE 844264 R BE844264 R BE 844264R BE 6045613 A BE6045613 A BE 6045613A BE 6045613 A BE6045613 A BE 6045613A BE 844264 R BE844264 R BE 844264R
Authority
BE
Belgium
Prior art keywords
improving
quality
refractory bricks
refractory
emi
Prior art date
Application number
BE6045613A
Other languages
French (fr)
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 filed Critical
Priority to BE6045613A priority Critical patent/BE844264R/en
Application granted granted Critical
Publication of BE844264R publication Critical patent/BE844264R/en
Priority to GB1194677A priority patent/GB1569474A/en
Priority to IT6763877A priority patent/IT1116719B/en
Priority to DE19772712746 priority patent/DE2712746A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • C04B35/0435—Refractories from grain sized mixtures containing refractory metal compounds other than chromium oxide or chrome ore
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • C04B35/047—Refractories from grain sized mixtures containing chromium oxide or chrome ore
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/87—Ceramics
    • 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 or breaking away linings
    • F27D1/1678—Increasing the durability of linings; Means for protecting
    • F27D1/1684—Increasing the durability of linings; Means for protecting by a special coating applied to the lining

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Description

       

   <EMI ID=1.1> 

  
La présente invention se rapporte à des perfectionnements au procédé pour améliorer la qualité des briques réfractaires, procédé tel que décrit dans la demande de brevet principal n[deg.] 6/45.421 déposée le 26 mars 1976.

  
Dans ce brevet principal, on décrit un procédé pour améliorer la qualité des briques réfractaires et spécialement des briques réfractaires qui sont destinées à être utilisées dans des

  
> récipients métallurgiques, tels que des mélangeurs, des cuves de traitement sous vide, des poches-torpilles, et, en général, dans tous les récipients utilisant des réfractaires cuits et ce, -principalement aux zones où la scorie vient au contact des dits réfractaires.

  
Le procédé, objet du brevet principal, est essentiellement caractérisé en ce que l'on introduit dans les réfractaires, après leur cuisson, entre les grains qui les constituent, un matériau très finement divisé, dit de protection, réagissant davantage que le réfractalre avec

  
les scories agressives et détournant ainsi vers elle-même le pouvoir agressif de la scorie, ce qui permet une protection efficace du réfractaire considéré.

  
Il a été constaté que les briques réfractaires qui ont été "imprégnées" avec ce matériau résistent de façon nettement accrue aux sollicitations de la scorie, toutes autres conditions restant par ailleurs égales.

  
Suivant une modalité avantageuse de ce brevet principal,

  
le réfractaire utilisé est à base de magnésie et/ou de chromite, tandis

  
 <EMI ID=2.1> 

  
CaO.

  
Le présent perfectionnement a pour objet de révéler

  
 <EMI ID=3.1>  

REVENDICATIONS

  
1. Procédé pour améliorer la qualité des briques réfractaires destinées spécialement à être utilisées dans des récipients métallurgiques, procédé dans lequel, après cuisson de celles-ci, on introduit entre les grains qui les constituent un matériau très finement divisé réagissant davantage que le dit réfractaire avec les scories métallurgiques, caractérisé en ce que le réfractaire est à base de magnésie et/ou de chromite et en ce que le

  
 <EMI ID=4.1> 



   <EMI ID = 1.1>

  
The present invention relates to improvements to the process for improving the quality of refractory bricks, a process as described in the main patent application n [deg.] 6 / 45,421 filed on March 26, 1976.

  
In this main patent, a process is described for improving the quality of refractory bricks and especially of refractory bricks which are intended for use in

  
> metallurgical vessels, such as mixers, vacuum treatment tanks, torpedo bags, and, in general, in all vessels using fired refractories, mainly in areas where the slag comes into contact with said refractories .

  
The process, object of the main patent, is essentially characterized in that one introduces into the refractories, after their firing, between the grains which constitute them, a very finely divided material, called protective, reacting more than the refractory with

  
aggressive slag and thus diverting the aggressive power of the slag towards itself, which allows effective protection of the refractory considered.

  
It has been observed that the refractory bricks which have been "impregnated" with this material are significantly more resistant to the stresses of the slag, all other conditions remaining otherwise equal.

  
According to an advantageous modality of this main patent,

  
the refractory used is based on magnesia and / or chromite, while

  
 <EMI ID = 2.1>

  
CaO.

  
The purpose of this improvement is to reveal

  
 <EMI ID = 3.1>

CLAIMS

  
1. Process for improving the quality of refractory bricks intended especially for use in metallurgical vessels, process in which, after firing thereof, a very finely divided material is introduced between the grains which constitute them, which reacts more than the said refractory. with metallurgical slag, characterized in that the refractory is based on magnesia and / or chromite and in that the

  
 <EMI ID = 4.1>

Claims (1)

2. Procédé suivant la revendication 1, caractérisé en ce que l'Introduction se fait par exemple par trempage, par aspiration sous vide, par projection d'un fluide, soit contenant le dit matériau en suspension ou en solution (éventuellement colloïdale en tout ou en partie), soit constituée d'une forme liquide de ce matériau (par exemple un sel de celui-ci), ces opérations <EMI ID=5.1> 2. Method according to claim 1, characterized in that the introduction is carried out for example by soaking, by vacuum suction, by spraying a fluid, either containing said material in suspension or in solution (possibly colloidal in all or in part), or consisting of a liquid form of this material (e.g. a salt thereof), these operations <EMI ID = 5.1> (avec ou sans décomposition), qui fait apparartre le matériau souhaité sous la forme finement divisée désirée. (with or without decomposition), which shows the desired material in the desired finely divided form.
BE6045613A 1976-03-26 1976-07-16 PROCESS FOR IMPROVING THE QUALITY OF REFRACTORY BRICKS BE844264R (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE6045613A BE844264R (en) 1976-07-16 1976-07-16 PROCESS FOR IMPROVING THE QUALITY OF REFRACTORY BRICKS
GB1194677A GB1569474A (en) 1976-03-26 1977-03-22 Method of the quality of refractory bricks
IT6763877A IT1116719B (en) 1976-03-26 1977-03-23 PROCEDURE TO IMPROVE THE QUALITY OF REFRACTORY BRICKS
DE19772712746 DE2712746A1 (en) 1976-03-26 1977-03-23 PROCESS FOR IMPROVING THE QUALITY OF REFRACTORY STONE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE6045613A BE844264R (en) 1976-07-16 1976-07-16 PROCESS FOR IMPROVING THE QUALITY OF REFRACTORY BRICKS

Publications (1)

Publication Number Publication Date
BE844264R true BE844264R (en) 1976-11-16

Family

ID=3874697

Family Applications (1)

Application Number Title Priority Date Filing Date
BE6045613A BE844264R (en) 1976-03-26 1976-07-16 PROCESS FOR IMPROVING THE QUALITY OF REFRACTORY BRICKS

Country Status (1)

Country Link
BE (1) BE844264R (en)

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