KR960022339A - Sprinkler composition for hot repair of refining furnace wall - Google Patents

Sprinkler composition for hot repair of refining furnace wall Download PDF

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Publication number
KR960022339A
KR960022339A KR1019940040107A KR19940040107A KR960022339A KR 960022339 A KR960022339 A KR 960022339A KR 1019940040107 A KR1019940040107 A KR 1019940040107A KR 19940040107 A KR19940040107 A KR 19940040107A KR 960022339 A KR960022339 A KR 960022339A
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KR
South Korea
Prior art keywords
weight
clinker
less
dolomite clinker
furnace wall
Prior art date
Application number
KR1019940040107A
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Korean (ko)
Other versions
KR970008698B1 (en
Inventor
이상완
김용훈
이원창
전진익
Original Assignee
김만제
포항종합제철 주식회사
신치재 · 서상기
포철로재 주식회사
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Publication date
Application filed by 김만제, 포항종합제철 주식회사, 신치재 · 서상기, 포철로재 주식회사 filed Critical 김만제
Priority to KR1019940040107A priority Critical patent/KR970008698B1/en
Publication of KR960022339A publication Critical patent/KR960022339A/en
Application granted granted Critical
Publication of KR970008698B1 publication Critical patent/KR970008698B1/en

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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
    • 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
    • C04B35/06—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 oxide mixtures derived from dolomite
    • 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
    • C04B35/447—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 phosphates, e.g. hydroxyapatite
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • 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
    • F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Products (AREA)

Abstract

본 발명은 내소화성 돌로마이트 클링커를 주원료로 하여 사용온도가 높고 슬래그 염기도 낮은 스테인레스 제조용 UBD, AOD 정련로에서 우수한 내구성을 나타낼 뿐만 아니라 일반전로에서도 기존 스프래이재보다 긴 내구수명을 나타내는 정련로 벽체 열간보수용 스프래이재 조성물을 재공하는 것을 목적으로 한다.In the present invention, fire retardant dolomite clinker is used as a main raw material, which exhibits excellent durability in UBD and AOD refining furnaces for manufacturing stainless steel with high use temperature and low slag base. It aims at providing the spraying composition for repair.

상기 목적을 달성하기 위한 본 발명은, 오토클레이브 소화시험법(3kg/cm2, 2시간유지)에 의한 중량 증가율이 2.0중량% 이하이며, CaO함량이 40~65중량%인 내소화성 합성돌로마이트 클링커 : 50~80중량%, 소식회 : 1.5중량% 이하, 헥사베타인산소다 : 2.5~5.5중량%, 잔부 : 보조결합제, 마그네시아클링커 및 일반돌로마이트 클링커로 조성되는 정련로 벽체 열간보수용 스프래이재 조성물을 제공함을 그 요지로 한다.The present invention for achieving the above object, the weight increase rate by the autoclave digestion test method (3kg / cm 2 , maintained for 2 hours) is 2.0% by weight or less, fire-resistant synthetic dolomite clinker of 40 to 65% by weight of CaO : 50 to 80% by weight, news: 1.5% by weight or less, hexabeta phosphate: 2.5 to 5.5% by weight, balance: refining furnace wall hot-spray composition composed of auxiliary binder, magnesia clinker and general dolomite clinker The main point is to provide.

Description

정련로 벽체 열간보수용 스프래이재 조성물Sprinkler composition for hot repair of refining furnace wall

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (3)

오토클레이브 소화시험법(3kg/cm2, 2시간유지)에 의한 중량 증가율이 2.0중량% 이하이며, CaO함량이 40~65중랑%인 내소화성 합성돌로마이트 클링커 : 50~80중량% 소식회 : 1.5중량% 이하, 헥사메타인산소다 : 2.5~5.5중량%, 잔부 : 보조결합제, 마그네시아클링커 및 일반돌로마이트 클링커로 조성됨을 특징으로 하는 정련로 벽체 열간보수웅 스프래이재 조성물.Fire resistant synthetic dolomite clinker with autoclave digestion test method (3kg / cm 2 , hold for 2 hours) is 2.0% by weight or less and CaO content is 40 ~ 65 weight% Weight% or less, hexametha phosphate: 2.5 to 5.5% by weight, balance: co-refining wall hot repair spray material composition, characterized in that the composition is composed of a co-binder, magnesia clinker and ordinary dolomite clinker. 제1항에 있어서, 보조결합제는 중량%로, 포오틀란트 시멘트 : 0.2~1.0%, 탄산칼슘분말 : 1.0~4.0%, 벤토나이트 ; 0.2~1.0%, 분말규산소다 : 0.3~1.5%로 이루어지는 그룹중에서 선택된 1종단독 또는 2종이상이며, 마그네시아 클링커는 입경 0.075mm이하의 미분으로서 그 함량이 13~25중량%임을 특징으로 하는 정련로 벽체 열간보수용 스프래이재 조성물.The method according to claim 1, wherein the auxiliary binder is in weight percent, pootland cement: 0.2-1.0%, calcium carbonate powder: 1.0-4.0%, bentonite; 0.2 ~ 1.0%, Powdered Sodium Silicate: One or more selected from the group consisting of 0.3 ~ 1.5%. Spray material composition for furnace wall hot repair. 제1항 내지 제2항에 있어서, 마그네시아 클링커와 내소화성 합성돌로마이트클링커의 합이 전체에 대해 87.5∼94.5% 범위임을 특징으로 하는 정련로 벽체 열간보수용 스프래이재 조성물.3. The spray material composition of claim 1 or 2, wherein the sum of the magnesia clinker and the refractory synthetic dolomite clinker is in the range of 87.5 to 94.5% of the total. ※ 참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940040107A 1994-12-30 1994-12-30 Spray composition KR970008698B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940040107A KR970008698B1 (en) 1994-12-30 1994-12-30 Spray composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940040107A KR970008698B1 (en) 1994-12-30 1994-12-30 Spray composition

Publications (2)

Publication Number Publication Date
KR960022339A true KR960022339A (en) 1996-07-18
KR970008698B1 KR970008698B1 (en) 1997-05-28

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Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101130107B1 (en) * 2009-07-22 2012-03-28 주식회사 동국알앤에스 Basic refractories for reparing a furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101130107B1 (en) * 2009-07-22 2012-03-28 주식회사 동국알앤에스 Basic refractories for reparing a furnace

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Publication number Publication date
KR970008698B1 (en) 1997-05-28

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