CN112500136A - Production method of magnesia-chrome brick - Google Patents

Production method of magnesia-chrome brick Download PDF

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Publication number
CN112500136A
CN112500136A CN202011417691.7A CN202011417691A CN112500136A CN 112500136 A CN112500136 A CN 112500136A CN 202011417691 A CN202011417691 A CN 202011417691A CN 112500136 A CN112500136 A CN 112500136A
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CN
China
Prior art keywords
parts
brick
magnesia
chrome
chrome brick
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.)
Withdrawn
Application number
CN202011417691.7A
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Chinese (zh)
Inventor
张义先
刘琳琳
赵现华
金钊
侯中阳
尹斌
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Haicheng Lier Maige Xita Material Co ltd
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Haicheng Lier Maige Xita Material Co ltd
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Priority to CN202011417691.7A priority Critical patent/CN112500136A/en
Publication of CN112500136A publication Critical patent/CN112500136A/en
Withdrawn legal-status Critical Current

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    • 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
    • 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
    • C04B35/632—Organic additives
    • C04B35/636—Polysaccharides or derivatives thereof
    • 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
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

The invention relates to a method for producing a magnesia-chrome brick, which comprises the steps of respectively adding iron oxide yellow and iron oxide blue in the preparation processes of a common magnesia-chrome brick and a directly sintered magnesia-chrome brick to ensure that a finished brick has different distinguishable colors, wherein the firing temperature of the common magnesia-chrome brick is 1520-minus 0 ℃, and the finished brick has yellow color; directly combining the magnesite-chrome brick to sinter at 1680-1750 ℃; the finished brick is blue. The performance of the magnesia-chrome brick prepared by the method meets the requirement, and simultaneously, the homogeneous brick which is difficult to distinguish has differentiability, is easy to distinguish in a building site, is convenient to construct, and avoids errors in building positions.

Description

Production method of magnesia-chrome brick
Technical Field
The invention relates to the field of refractory materials, in particular to a production method of a magnesia-chrome brick.
Background
The magnesia-calcium brick is a magnesia refractory material which takes periclase and diaspore as main crystal phases and dicalcium silicate as a secondary crystal phase. The microstructure is characterized in that periclase is directly contacted with dicalcium silicate and tricalcium silicate, eutectic (4 CaO. Al2O 3. Fe2O3 is in a fine vein shape and is filled in crystal gaps between dicalcium silicate and tricalcium silicate, the magnesia-chrome bricks comprise common bricks and are directly combined with the bricks, and finished bricks are not easy to distinguish.
Disclosure of Invention
The invention aims to solve the technical problem of providing a production method of a magnesia-chrome brick, which is easy to distinguish finished bricks and is convenient for kiln masonry to correctly select adobes.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for producing magnesia chrome bricks, which adds iron oxide yellow and iron oxide blue respectively in the preparation process of common magnesia chrome bricks and direct sintering magnesia chrome bricks to make the finished bricks have different distinguishable colors, specifically comprises the following steps:
one kind of common magnesia-chrome brick
1) Raw materials: chromium ore: 25-35 parts of 2-4mm, 10-15 parts of 1-2mm and 20-30 parts of 0-1 mm; 96 parts of fused magnesite: 30-45 parts of 3-5mm, 10-20 parts of 1-3mm, 15-35 parts of 0-1mm and 20-35 parts of 200 meshes; al (Al)2O31-3 parts of micro powder; binding agent: 5-10 parts of starch and 3-5 parts of dextrin;
2) adding the raw materials into iron oxide yellow, and then uniformly mixing;
3) after discharging, molding by using a brick press;
4) putting the green bricks into a drying kiln for drying for 10-20 hours, and then putting the green bricks into a tunnel kiln for firing at the temperature of 1520 and 1580 ℃, wherein the finished bricks are yellow;
two, directly combined magnesia-chrome brick
1) Raw materials: chromium concentrate: 20-35 parts of 2-4mm, 10-15 parts of 1-2mm and 15-30 parts of 0-1 mm; 97 electric smelting magnesite: 30-45 parts of 3-5mm, 10-20 parts of 1-3mm, 15-35 parts of 0-1mm and 20-35 parts of 200 meshes; al (Al)2O31-3 parts of micro powder; binding agent: 5-10 parts of starch and 3-5 parts of dextrin;
2) adding iron oxide blue into the raw materials, and then uniformly mixing;
3) after discharging, molding by using a brick press;
4) putting the green bricks into a drying kiln for drying for 10-20 hours, and then putting the green bricks into a tunnel kiln for firing at 1680-1750 ℃; the finished brick is blue.
Compared with the prior art, the invention has the beneficial effects that:
the performance of the magnesia-chrome brick prepared by the method meets the requirement, and simultaneously, the homogeneous brick which is difficult to distinguish has differentiability, is easy to distinguish in a building site, is convenient to construct, and avoids errors in building positions.
Detailed Description
The invention is further illustrated by the following examples:
the following examples describe the invention in detail. These examples are merely illustrative of the best embodiments of the present invention and do not limit the scope of the invention.
A method for producing magnesia chrome bricks, which adds iron oxide yellow and iron oxide blue respectively in the preparation process of common magnesia chrome bricks and direct sintering magnesia chrome bricks to make the finished bricks have different colors for distinguishing, specifically comprises the following steps:
one kind of common magnesia-chrome brick
1) Raw materials: chromium ore: 25-35 parts of 2-4mm, 10-15 parts of 1-2mm and 20-30 parts of 0-1 mm; 96 parts of fused magnesite: 30-45 parts of 3-5mm, 10-20 parts of 1-3mm, 15-35 parts of 0-1mm and 20-35 parts of 200 meshes; al (Al)2O31-3 parts of micro powder; binding agent: 5-10 parts of starch and 3-5 parts of dextrin;
2) adding the raw materials into iron oxide yellow, and then uniformly mixing;
3) after discharging, molding by using a brick press;
4) putting the green bricks into a drying kiln for drying for 10-20 hours, and then putting the green bricks into a tunnel kiln for firing at the temperature of 1520 and 1580 ℃, wherein the finished bricks are yellow;
two, directly combined magnesia-chrome brick
1) Raw materials: chromium concentrate: 20-35 parts of 2-4mm, 10-15 parts of 1-2mm and 15-30 parts of 0-1 mm; 97 electric smelting magnesite: 30-45 parts of 3-5mm, 10-20 parts of 1-3mm, 15-35 parts of 0-1mm and 20-35 parts of 200 meshes; al (Al)2O31-3 parts of micro powder; binding agent: 5-10 parts of starch and 3-5 parts of dextrin;
2) adding iron oxide blue into the raw materials, and then uniformly mixing;
3) after discharging, molding by using a brick press;
4) putting the green bricks into a drying kiln for drying for 10-20 hours, and then putting the green bricks into a tunnel kiln for firing at 1680-1750 ℃; the finished brick is blue.
The invention is convenient to distinguish homogeneous bricks and avoids the phenomenon of brick mixing in construction sites.

Claims (1)

1. A method for producing a magnesite-chrome brick is characterized in that iron oxide yellow and iron oxide blue are respectively added in the preparation processes of a common magnesite-chrome brick and a directly sintered magnesite-chrome brick to ensure that the finished brick has different distinguishable colors, and specifically comprises the following steps:
one kind of common magnesia-chrome brick
1) Raw materials: chromium ore: 25-35 parts of 2-4mm, 10-15 parts of 1-2mm and 20-30 parts of 0-1 mm; 96 parts of fused magnesite: 30-45 parts of 3-5mm, 10-20 parts of 1-3mm, 15-35 parts of 0-1mm and 20-35 parts of 200 meshes; al (Al)2O31-3 parts of micro powder; binding agent: 5-10 parts of starch and 3-5 parts of dextrin;
2) adding the raw materials into iron oxide yellow, and then uniformly mixing;
3) after discharging, molding by using a brick press;
4) putting the green bricks into a drying kiln for drying for 10-20 hours, and then putting the green bricks into a tunnel kiln for firing at the temperature of 1520 and 1580 ℃, wherein the finished bricks are yellow;
two, directly combined magnesia-chrome brick
1) Raw materials: chromium concentrate: 20-35 parts of 2-4mm, 10-15 parts of 1-2mm and 15-30 parts of 0-1 mm; 97 electric smelting magnesite: 30-45 parts of 3-5mm, 10-20 parts of 1-3mm, 15-35 parts of 0-1mm and 20-35 parts of 200 meshes; al (Al)2O31-3 parts of micro powder; binding agent: 5-10 parts of starch and 3-5 parts of dextrin;
2) adding iron oxide blue into the raw materials, and then uniformly mixing;
3) after discharging, molding by using a brick press;
4) putting the green bricks into a drying kiln for drying for 10-20 hours, and then putting the green bricks into a tunnel kiln for firing at 1680-1750 ℃; the finished brick is blue.
CN202011417691.7A 2020-12-07 2020-12-07 Production method of magnesia-chrome brick Withdrawn CN112500136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011417691.7A CN112500136A (en) 2020-12-07 2020-12-07 Production method of magnesia-chrome brick

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011417691.7A CN112500136A (en) 2020-12-07 2020-12-07 Production method of magnesia-chrome brick

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116813311A (en) * 2023-06-09 2023-09-29 海城利尔麦格西塔材料有限公司 Sintered magnesia-alumina-chrome refractory brick and manufacturing method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10203862A (en) * 1997-01-16 1998-08-04 Shinagawa Refract Co Ltd Magnesium-chromium brick fired at high temperature
KR100580120B1 (en) * 2004-12-22 2006-05-12 재단법인 포항산업과학연구원 Method for treatment magnesium-chromium brick
CN102731121A (en) * 2012-07-12 2012-10-17 辽宁中镁合金股份有限公司 High-performance magnesium-aluminum-chromium composite spinel brick and manufacturing method thereof
CN106588050A (en) * 2016-12-15 2017-04-26 河南瑞泰耐火材料科技有限公司 Low-pore magnesite-chrome brick for nonferrous metallurgy and preparation method thereof
CN109053103A (en) * 2018-09-03 2018-12-21 嘉峪关市产品质量计量和特种设备检验检测中心 Steam pressure pseudo-classic architecture brick
CN109650787A (en) * 2017-10-12 2019-04-19 湖南江山飞龙新材料科技有限公司 A kind of compounding method of coloured silk face decorative architecture ecological brick

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10203862A (en) * 1997-01-16 1998-08-04 Shinagawa Refract Co Ltd Magnesium-chromium brick fired at high temperature
KR100580120B1 (en) * 2004-12-22 2006-05-12 재단법인 포항산업과학연구원 Method for treatment magnesium-chromium brick
CN102731121A (en) * 2012-07-12 2012-10-17 辽宁中镁合金股份有限公司 High-performance magnesium-aluminum-chromium composite spinel brick and manufacturing method thereof
CN106588050A (en) * 2016-12-15 2017-04-26 河南瑞泰耐火材料科技有限公司 Low-pore magnesite-chrome brick for nonferrous metallurgy and preparation method thereof
CN109650787A (en) * 2017-10-12 2019-04-19 湖南江山飞龙新材料科技有限公司 A kind of compounding method of coloured silk face decorative architecture ecological brick
CN109053103A (en) * 2018-09-03 2018-12-21 嘉峪关市产品质量计量和特种设备检验检测中心 Steam pressure pseudo-classic architecture brick

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
徐琳琳等: "铜冶炼炉用镁铬砖的性能优化研究", 《耐火材料》 *
陈龙等: "低Cr~(6+)镁铬砖的研制与应用", 《耐火材料》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116813311A (en) * 2023-06-09 2023-09-29 海城利尔麦格西塔材料有限公司 Sintered magnesia-alumina-chrome refractory brick and manufacturing method thereof

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Application publication date: 20210316