WO2004063652A2 - Constriction obtenue au moyen d'une brique thermo-isolante dans un four destine a une utilisation industrielle et procede de fabrication de la brique - Google Patents

Constriction obtenue au moyen d'une brique thermo-isolante dans un four destine a une utilisation industrielle et procede de fabrication de la brique Download PDF

Info

Publication number
WO2004063652A2
WO2004063652A2 PCT/KR2004/000043 KR2004000043W WO2004063652A2 WO 2004063652 A2 WO2004063652 A2 WO 2004063652A2 KR 2004000043 W KR2004000043 W KR 2004000043W WO 2004063652 A2 WO2004063652 A2 WO 2004063652A2
Authority
WO
WIPO (PCT)
Prior art keywords
oxide
insulating brick
blacken
film layer
furnace
Prior art date
Application number
PCT/KR2004/000043
Other languages
English (en)
Other versions
WO2004063652A3 (fr
Inventor
Jin Hyung Beum
Original Assignee
Chosun Refractories Co., 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
Priority claimed from KR1020030092921A external-priority patent/KR100558654B1/ko
Application filed by Chosun Refractories Co., Ltd. filed Critical Chosun Refractories Co., Ltd.
Priority to JP2006500624A priority Critical patent/JP2006517507A/ja
Publication of WO2004063652A2 publication Critical patent/WO2004063652A2/fr
Publication of WO2004063652A3 publication Critical patent/WO2004063652A3/fr

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
    • 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
    • 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
    • C04B35/10—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 aluminium oxide
    • C04B35/101—Refractories from grain sized mixtures
    • C04B35/103—Refractories from grain sized mixtures containing non-oxide refractory materials, e.g. carbon
    • 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
    • C04B35/10—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 aluminium oxide
    • C04B35/101—Refractories from grain sized mixtures
    • C04B35/105—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
    • C04B35/01—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
    • C04B35/12—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 chromium oxide
    • 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
    • C04B35/46—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 titanium oxides or titanates
    • C04B35/462—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 titanium oxides or titanates based on titanates
    • C04B35/478—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 titanium oxides or titanates based on titanates based on aluminium titanates
    • 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
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • 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
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
    • C04B41/5031—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
    • 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
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • 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
    • 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
    • C04B2235/30—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
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • 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
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts 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
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
    • 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
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3275—Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
    • 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
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C04B2235/3826—Silicon carbides
    • 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
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422—Carbon
    • 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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9646—Optical properties
    • C04B2235/9661—Colour

Definitions

  • the present invention relates to insulating bricks for industrial furnaces that require high temperature heating, and more particularly, to an insulating brick, blackness of an inside surface, that faces an inside of a furnace, of which is made high, to enhance emissivity, for saving energy; and a method for manufacturing the same.
  • the insulating bricks are used for building an inside part of various industrial furnaces, such as hot blast furnaces, incinerators, and heating furnaces, that require high temperature heating.
  • the insulating brick for the various industrial furnaces is formed of an insulating material of which principal component is a metal oxide, such as chamotte, alumina, alumina-silicate, and zircoma, which requires much energy when the brick is used for a heating furnace that uses radiant energy because the insulating materials have a low emissivity even though the insulating materials have a high insulating performance.
  • a blackness saturation of black color
  • a perfect black color has 100% emissivity
  • a substance that has 100% emissivity has a blackness of unity.
  • a related art insulating brick has been manufactured of one of above materials, and used for building an inside part of the furnace as it is.
  • a cracking furnace of naphtha cracker a general industrial furnace, consumes about 30Gcal/hr of energy, which corresponds to about 7 billion Korean Won (K.Won) worth of bunker C oil.
  • the Korea Petrochemical Industrial Co., Ltd a Korean company, has 8 units of the cracking furnaces, which are supposed to consume about 56 billion K.Won of energy.
  • a size of thermal radiant energy in an industrial furnace increases sharply together with rise of a temperature, such that most of heat is transmitted by heat radiation in a high temperature.
  • a far infrared ray is approx. 1/2 at a furnace temperature in the vicinity of 800°C.
  • a far infrared ray is higher than 90%. Others are around 5% of visible lights. Therefore, it is hard to expect a heating effect made by emissivity if the substance is not one that absorbs the near infrared ray. Disclosure of Invention
  • An object of the present invention devised for solving the related art problem, lies on providing an insulating brick, blackness of an inside part of which in contact with an inside of various furnaces is made high, to enhance emissivity, for saving energy, and a method for manufacturing the same.
  • the object of the present invention can be achieved by providing an insulating brick to be built inside of an industrial furnace for high temperature heating including a blacken film layer in contact with an inside of the furnace, having a blackness higher than 0.85. Moreover, the present invention provides a method for manufacturing an insulating brick including the blacken film layer.
  • FIG 1 illustrates an insulating brick in accordance with a preferred embodiment of the present invention, including a blacken film layer 2 with a blackness over 0.8, preferably 0.85 ⁇ 1.0, at an inside part of a brick 1, having a form the same with a related art brick, in contact with an inside surface of a furnace.
  • An energy absorption and a color have the following relation.
  • ice is colorless and transparent since the ice transmits a light, however, the ice turns into thick gray if the ice is broken up.
  • What a substance shines white implies that entire wavelengths of a visible light return, i.e., reflect
  • what a substance looks black implies that entire wavelengths of the visible light are taken, i.e., absorb.
  • snow hardly melt even in an early spring, the snow melts soon once sand is spread thereon. This is because, even though the snow reflects sunlight, the sand absorbs the sunlight, to elevate a temperature of the snow.
  • the blacken film layer of the present invention having a particular blackness is formed.
  • Thermal radiation is emission of electro-magnetic wave caused by a group of atoms loosened by heat.
  • An intensity of the thermal radiation is dependent on kind and temperature of a substance; the higher the temperature, the higher the intensity of the thermal radiation. Therefore, if a low temperature substance is in the vicinity of a high temperature substance, the low temperature substance absorbs a portion of a radiant ray, and turns the radiant ray into heat.
  • the heat is radiant heat or an emissive heat.
  • the insulating brick of the present invention may be formed of any material as far as the material is one that has been used in the field of art of the present invention, and has a blackness below 0.8 without any particular limitation in view of material, such as alumina, alumina-silicate, zirconia, and the like.
  • the present invention is achieved by coating coloring raw material on a related art brick such that the coating has a blackness higher than 0.80, preferably higher than 0.85.
  • Materials that can make the blackness higher than 0.85 are inorganic materials, such as metal oxides, carbides and the like, which permit coloring at an elevated temperature
  • mponent of material selected from a group of materials including FeO, Fe 2 O 3 , Cr 2 O 3 , manganese oxide, titanium oxide, and cobalt may be used.
  • the present invention suggests to use only the principal component, or to use the principal component mixed with at least one kind of material selected from a group of materials, including aluminum oxide, silicon oxide, zirconia, magnesium oxide, calcium oxide, sodium oxide, silicon carbide, and carbon.
  • a mixing ratio of the principal component and auxiliary principles as far as mixing ratio provides the blackness higher than 0.85.
  • the insulating brick of the present invention permits to enhance an emissivity to save energy while maintaining the present insulating performance as it is, by processing one or more than one side surfaces of a refractory insulating brick close to a black body by using an inorganic material having a heat resistance higher than 500°C.
  • FIG. 1 illustrates a structure of a refractory insulating brick in accordance with a preferred embodiment of the present invention, wherein a reference numeral 1 denotes an insulating brick, and reference numeral 2 denotes a black film coating. Best Mode for Carrying Out the Invention
  • the insulating brick of the present invention can be manufactured by mixing, forming, and drying raw materials of an insulating brick, coating a coloring raw material on the insulating brick, prepared by mixing at least one kind of principal component selected from a group of materials including FeO, Fe 2 O 3 , Cr 2 O 3 , manganese oxide, titanium oxide, and cobalt with at least one kind of auxiliary principles selected from a group of materials, including aluminum oxide, silicon oxide, zirconia, magnesium oxide, calcium oxide, sodium oxide, silicon carbide, and carbon in a ratio ranging 2 ⁇ 100wt%, and baking the insulating brick.
  • the insulating brick of the present invention can be manufactured by mixing, forming, drying, and baking raw materials of an insulating brick, to manufacture the insulating brick that is a primary product, and coating the coloring raw material including the principal component the auxiliary principles on the insulating brick, and baking the insulating brick.
  • a brick is formed of a raw material used presently used widely, such as chamotte, alumina, alumina-silicate, and zirconia, and dried by using a known method.
  • the principal component (at times, together with the auxiliary principles) of the color material is mixed with a solvent, such as kerosene, alcohol, or water, and the like, and coated on one of an inside surfaces of the dried insulating brick by spraying, brushing, dipping, rolling, and the like. Then, the coated insulating brick is baked for 1 ⁇ 7 hours at a temperature ranging
  • the insulating brick becomes to have a portion of a black body, to enhance durability and emissivity. Moreover, the baking prevents break away of the blacken film layer that can take place during use of the insulating brick.
  • the baking temperature is lower than a maximum
  • the best temperature is in a range 200 ⁇ 300°C
  • the insulating brick when the insulating brick is baked at a temperature 50 ⁇ 100°C higher than a temperature of use, the insulating brick has a higher blackness, and favorable in view of emissivity, and durability.
  • the baking temperature is lower than 500°C, no sintering takes place, to fail to make the blacken film layer component to react with the insulating brick, and to fail to form a unit, resulting in poor bonding, that is liable to fall off, and resulting in poor coloring due to failure of reactions between respective components.
  • a baking time period having a relation with the baking temperature, is set the shorter, if the baking temperature is set the higher, and vice versa. If the baking time period is shorter than an hour, no baking takes place, resulting in a poor bonding strength, to cause, not only an easy fall off of the blacken film layer, but also a poor coloring effect as reactions between respective components fail. If the baking time period exceeds 7 hours, a liquid phase is produced, to drop the blackness, with a poor emissivity.
  • the insulating brick manufactured according to the present invention with a blackness higher than 0.85, permits to save 3 ⁇ 5% of energy, approx. 1 ⁇ 1.5Gcal/hr per a furnace, corresponding to approx. 0.2 ⁇ 0.35 bil. K.Won.
  • Table 1 shows an energy saving effect of the insulating brick of the present invention.
  • Table 1 shows a result for a case of one naphtha cracker cracking furnace, in which the blacken film layer is formed of composition indicated therein on an insulating brick with a blackness in a range of 0.6, and is baked.
  • an insulating brick with a 900°C maximum temperature of use has a
  • Table 3 shows a test result of a naphtha cracker cracking furnace of the insulating
  • the insulating brick in accordance with one of different embodiments of the present invention is applicable to industries because the insulating brick of the present invention provides insulating brick for energy saving type industrial furnaces by making related art insulating brick with a blackness below 0.8 to include a blacken film layer with a blackness over 0.8, more preferably, over 0.85, on a surface thereof, to enhance an emissivity.

Landscapes

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

Abstract

L'invention concerne une brique isolante à construire à l'intérieur d'un four industriel destiné à un chauffage à températures élevées et comprenant une couche de film noirci en contact avec l'intérieur du four, le noir étant supérieur à 0,85, ainsi qu'un procédé de fabrication de celle-ci comprenant les étapes consistant : à mélanger un matériau brut colorant avec un solvant, tel que l'eau, l'alcool et le kérosène, le matériau brut colorant comprenant entre 2 et 100 % en poids d'au moins un type de matériau sélectionné dans le groupe de matériaux comprenant l'oxyde de fer, l'oxyde de chrome, l'oxyde de manganèse, l'oxyde de titane et le cobalt, et le reste d'au moins un type de matériau sélectionné dans un groupe de matériaux comprenant l'oxyde d'aluminium, l'oxyde de silicium, le zircone, l'oxyde de magnésium, l'oxyde de calcium, l'oxyde de sodium, le carbure de silicium et le carbone ; à revêtir le mélange précité sur une partie intérieure de la brique isolante en contact avec l'intérieur du four, de manière à former une couche de film noirci ; et à cuire la brique isolante sur laquelle la couche de film noirci est formée pendant une durée comprise entre 1 et 7 heures à une température allant de 500 à 1700 °C.
PCT/KR2004/000043 2003-01-13 2004-01-13 Constriction obtenue au moyen d'une brique thermo-isolante dans un four destine a une utilisation industrielle et procede de fabrication de la brique WO2004063652A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006500624A JP2006517507A (ja) 2003-01-13 2004-01-13 工業用炉に内装される断熱煉瓦、及びその製造方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2003-0002058 2003-01-13
KR20030002058 2003-01-13
KR10-2003-0092921 2003-12-18
KR1020030092921A KR100558654B1 (ko) 2003-01-13 2003-12-18 공업용 로(爐)에 내장되는 단열벽돌 및 그 제조방법

Publications (2)

Publication Number Publication Date
WO2004063652A2 true WO2004063652A2 (fr) 2004-07-29
WO2004063652A3 WO2004063652A3 (fr) 2004-12-16

Family

ID=36803487

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2004/000043 WO2004063652A2 (fr) 2003-01-13 2004-01-13 Constriction obtenue au moyen d'une brique thermo-isolante dans un four destine a une utilisation industrielle et procede de fabrication de la brique

Country Status (2)

Country Link
JP (1) JP2006517507A (fr)
WO (1) WO2004063652A2 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008544201A (ja) * 2005-06-17 2008-12-04 ▲恵▼敏 周 熱交換用の被覆層付き蓄熱体
WO2013005196A1 (fr) 2011-07-07 2013-01-10 Saint-Gobain Centre De Recherches Et D'etudes Europeen Régénérateur
FR2977660A1 (fr) * 2011-07-07 2013-01-11 Saint Gobain Ct Recherches Regenerateur
WO2013130021A1 (fr) 2012-02-29 2013-09-06 Scg Chemicals Co., Ltd. Compositions de revêtement à émissivité élevée et procédés de fabrication correspondants
FR2988168A1 (fr) * 2012-03-15 2013-09-20 Saint Gobain Ct Recherches Regenerateur
WO2014048586A1 (fr) * 2012-09-28 2014-04-03 Refractory Intellectual Property Gmbh & Co. Kg Mélange pour formation d'un matériau réfractaire, matériau réfractaire, procédé de fabrication d'un matériau réfractaire et utilisation d'une substance comme agent auxiliaire de frittage
CN104973875A (zh) * 2015-07-06 2015-10-14 东北大学 一种致密铝镁钙耐火熟料及其制备方法
EP3262011A4 (fr) * 2015-02-24 2018-08-01 Saint-Gobain Ceramics&Plastics, Inc. Article réfractaire et procédé de fabrication
US20190127622A1 (en) * 2016-04-19 2019-05-02 Saint-Gobain Centre De Recherches Et D'etudes Europeen Sintered product with high iron oxide content
WO2020025601A1 (fr) 2018-08-01 2020-02-06 Scg Chemicals Co., Ltd. Composition de revêtement à émissivité élevée et substrat revêtu de celle-ci
US10590041B2 (en) 2012-01-11 2020-03-17 Saint-Gobain Ceramics & Plastics, Inc. Refractory object and process of forming a glass sheet using the refractory object

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006045056A1 (de) * 2006-09-21 2008-03-27 Uhde Gmbh Koksofen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1265184A1 (ru) * 1984-07-25 1986-10-23 Предприятие П/Я Р-6603 Покрытие огнеупорной футеровки печных агрегатов
US5668072A (en) * 1996-05-09 1997-09-16 Equity Enterprises High emissivity coating

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4936361B1 (fr) * 1969-03-08 1974-09-30
JPS60251186A (ja) * 1984-05-28 1985-12-11 橋本　卓彦 セラミツク系の赤外線高効率輻射層を表面に有する耐熱焼結体

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1265184A1 (ru) * 1984-07-25 1986-10-23 Предприятие П/Я Р-6603 Покрытие огнеупорной футеровки печных агрегатов
US5668072A (en) * 1996-05-09 1997-09-16 Equity Enterprises High emissivity coating

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008544201A (ja) * 2005-06-17 2008-12-04 ▲恵▼敏 周 熱交換用の被覆層付き蓄熱体
US9297590B2 (en) 2011-07-07 2016-03-29 Saint-Gobain Centre De Recherches Et D'etudes Europeen Regenerator
WO2013005196A1 (fr) 2011-07-07 2013-01-10 Saint-Gobain Centre De Recherches Et D'etudes Europeen Régénérateur
FR2977660A1 (fr) * 2011-07-07 2013-01-11 Saint Gobain Ct Recherches Regenerateur
US10590041B2 (en) 2012-01-11 2020-03-17 Saint-Gobain Ceramics & Plastics, Inc. Refractory object and process of forming a glass sheet using the refractory object
US10400150B2 (en) 2012-02-29 2019-09-03 Scg Chemicals Co., Ltd. High emissivity coating compositions and manufacturing processes therefore
US9587120B2 (en) 2012-02-29 2017-03-07 Scg Chemicals Co., Ltd. High emissivity coating compositions and manufacturing processes therefore
WO2013130021A1 (fr) 2012-02-29 2013-09-06 Scg Chemicals Co., Ltd. Compositions de revêtement à émissivité élevée et procédés de fabrication correspondants
EP2820364A4 (fr) * 2012-02-29 2015-09-09 Scg Chemicals Co Ltd Compositions de revêtement à émissivité élevée et procédés de fabrication correspondants
RU2605880C2 (ru) * 2012-02-29 2016-12-27 ЭсСиДжи КЕМИКАЛЗ КО., ЛТД. Высокоэмиссионные покровные композиции и способы их изготовления
FR2988168A1 (fr) * 2012-03-15 2013-09-20 Saint Gobain Ct Recherches Regenerateur
WO2014048586A1 (fr) * 2012-09-28 2014-04-03 Refractory Intellectual Property Gmbh & Co. Kg Mélange pour formation d'un matériau réfractaire, matériau réfractaire, procédé de fabrication d'un matériau réfractaire et utilisation d'une substance comme agent auxiliaire de frittage
EA027483B1 (ru) * 2012-09-28 2017-07-31 Рифрэктори Интеллектчуал Проперти Гмбх Унд Ко. Кг Шихта для изготовления огнеупорного материала, огнеупорный материал, способ изготовления огнеупорного материала, а также применение вещества в качестве способствующей спеканию добавки
US9212098B2 (en) 2012-09-28 2015-12-15 Refractory Intellectual Property Gmbh & Co. Blend for the production of a refractory material, a refractory material, a method for the manufacture of a refractory material, and use of a substance as a sintering aid
EP3262011A4 (fr) * 2015-02-24 2018-08-01 Saint-Gobain Ceramics&Plastics, Inc. Article réfractaire et procédé de fabrication
US11814317B2 (en) 2015-02-24 2023-11-14 Saint-Gobain Ceramics & Plastics, Inc. Refractory article and method of making
CN104973875A (zh) * 2015-07-06 2015-10-14 东北大学 一种致密铝镁钙耐火熟料及其制备方法
US20190127622A1 (en) * 2016-04-19 2019-05-02 Saint-Gobain Centre De Recherches Et D'etudes Europeen Sintered product with high iron oxide content
US11390786B2 (en) * 2016-04-19 2022-07-19 Saint-Gobain Centre De Recherches Et D'etudes Europeen Sintered product with high iron oxide content
WO2020025601A1 (fr) 2018-08-01 2020-02-06 Scg Chemicals Co., Ltd. Composition de revêtement à émissivité élevée et substrat revêtu de celle-ci

Also Published As

Publication number Publication date
WO2004063652A3 (fr) 2004-12-16
JP2006517507A (ja) 2006-07-27

Similar Documents

Publication Publication Date Title
WO2004063652A2 (fr) Constriction obtenue au moyen d'une brique thermo-isolante dans un four destine a une utilisation industrielle et procede de fabrication de la brique
US20120024845A1 (en) Exothermic enamel glaze, and exothermic container coated with same
CN100427014C (zh) 一种适用于电磁感应炉的高耐热陶瓷烹调炊具
CN111606568B (zh) 搪瓷组合物、制备搪瓷组合物的方法和烹饪用具
US6884471B2 (en) Method of producing a light-scattering layer on a glass or glass ceramic body
CN100381516C (zh) 高温远红外绝缘节能涂料及其制备方法
KR900009035B1 (ko) 도료조성물
US4469721A (en) High emissivity refractory coating, process for manufacturing the same, and coating composition therefor
EP2229468B1 (fr) Processus pour la production d'une plaque ou pièce d'acier émaillée
US20210309574A1 (en) High emissivity coating composition and substrate coated therewith
CN101375102A (zh) 对火舌尖的寿命和性能的改进
KR100558654B1 (ko) 공업용 로(爐)에 내장되는 단열벽돌 및 그 제조방법
JP4863439B2 (ja) 陶磁器用無鉛上絵具およびその製造方法
EP2806215B1 (fr) Carreau de vitre pour appareils de combustion
JP2007175095A (ja) ガス炊飯器用内釜
US2475470A (en) Ceramic coating material
JPWO2021100717A1 (ja) 無機材料製の遮熱材、これを製造するための材料セット、下地層用材料及び製造方法。
JP4003402B2 (ja) ガラスフラックス，着色用組成物及び装飾ガラス基板
WO2009139595A2 (fr) Contenant résistant à la chaleur destiné à la cuisson d'aliments et recouvert d'une composition calogène, procédé de fabrication correspondant
JPH0684270B2 (ja) 赤外線輻射被膜
CN106800390A (zh) 一种窑炉用无机涂层材料
KR100242593B1 (ko) 경질 세라믹체
KR20100056136A (ko) 무균열 내열자기 제조방법
KR101226625B1 (ko) 석탄폐석을 이용한 유리타일 제조방법
KR102310341B1 (ko) 법랑 조성물, 그 제조방법 및 조리기기

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2006500624

Country of ref document: JP

122 Ep: pct application non-entry in european phase