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
  • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
  • C04B22/02—Elements
  • C04B22/04—Metals, e.g. aluminium used as blowing agent
• • 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
  • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
  • C04B14/02—Granular materials, e.g. microballoons
  • C04B14/04—Silica-rich materials; Silicates
  • C04B14/06—Quartz; Sand
  • C04B14/066—Precipitated or pyrogenic silica
• • 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
  • C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
  • C04B16/02—Cellulosic 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
  • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
  • C04B22/06—Oxides, Hydroxides
• • 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
  • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
  • C04B22/08—Acids or salts thereof
  • C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
  • C04B22/142—Sulfates
  • C04B22/143—Calcium-sulfate
• • 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
  • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
  • C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
  • C04B28/26—Silicates of the alkali metals
• • 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
  • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
  • C04B2111/00431—Refractory 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
  • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
  • C04B2111/20—Resistance against chemical, physical or biological attack
  • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
  • Y02W30/00—Technologies for solid waste management
  • Y02W30/50—Reuse, recycling or recovery technologies
  • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

• the present invention relates to a refractory / heat insulating material that can be used, for example, as a refractory / heat insulating material.
• various materials are known as materials having strong and heat insulating properties.
• concrete is known as a strong material
• calcium silicate plate, stone threat plate, asbestos (asbestos), glass fiber, rock wool, and the like are used as refractory materials.
• Slag wool broadly defined ceramic finos (silica fins, ceramic fins, alumina fins, zirconia fi bers, etc.) and monocoat (M0N0K0TE) available from WR Grace. There was something to call.
• Calcium silicate plate and stone threatening plate are made by mixing cement and stone threatening with water and applying heat.
• stone threatening plate has a higher calcium content than calcium calcium silicate plate.
• Can be These calcium silicate plates and stone threat plates have the disadvantage that they are easily broken and have insufficient hardness, and they also have a high water absorption.
• Asbestos is a natural mineral fiber.
• Man-made mineral fibers such as glass fiber and rock wool (rock wool), and ceramic fiber in a broad sense, are manufactured by the melt fiberization method using high heat. Is done. Natural and man-made mineral fibers are considered to cause cancer when absorbed into the human body, and are being banned in various countries as a source of pollution.
• Monocoats are known to consist of a mixture of cellulose finok and vermiculite, which is hardened with some kind of adhesive.
• An object of the present invention is to provide a fire-resistant and heat-insulating material which is excellent in heat insulation and fire resistance and is mechanically strong.
• a powder containing at least 30% by weight of silicon, a silicon compound, calcium, a calcium compound, an aluminum-aluminum compound, or a mixture thereof containing at least 30% by weight of silicon, a silicon compound, calcium, a calcium compound, an aluminum-aluminum compound, or a mixture thereof.
• the weight ratio of the material 1 is in the range of 0 to 95% of the whole
• the overlap ratio of the second material including the fiber is in the range of 0.1 to 90% of the whole
• the weight of the water glass is The ratio is in the range of 3 to 80% of the whole, and after being mixed so as to be 100% in total, the solidified fireproof and heat insulating material is provided.
• the first material contains at least 40% by weight of the silicon, the silicon compound, the calcium or the calcium compound, the aluminum or the aluminum compound, or a mixture thereof. I have.
• the silicon-containing compound contains at least 5% by weight of a silicon-to-silicon compound, and calcium or a calcium compound and Z or aluminum or aluminum are contained in the silicon or the silicon compound.
• the weight ratio of the first material containing 30% or more including the compound is in the range of 0 to 95% of the whole, and the weight i ratio of the second material including the fiber is 0.1 to 100% of the whole. It is in the range of 90%, the weight ratio of water glass is in the range of 3 ⁇ 80% of the whole, and it is mixed so that the total is 100% Thereafter, the dried and solidified refractory and heat insulating material is provided.
• the first material contains not less than 10% by weight of the silicon or the silicon compound, and a calcium-calcium compound and / or an aluminum or a silicon compound. It contains more than 40% including aluminum compounds.
• the silicon or silicon compound contained in the first material contains silicon dioxide, and the calcium or calcium compound is
• the aluminum or aluminum compound contains aluminum oxide; and the second material may contain vegetable fiber, chemical fiber or mineral fiber, or a mixture thereof.
• the second material includes cellulose fiber and Z or polyacrylonitrile fiber
• the water glass has a density at 125C of 1255-: L71.
• the weight ratio of the first material is in the range of 60.0 to 88.5% of the whole, and the weight ratio of the second material including the fiber is 1.5 to 20.0% of the whole. %, And the weight ratio of the water glass is in the range of 10.0 to 20.0% of the whole.
• Kei arsenide, Kei-containing compounds such as silicon dioxide (Si0 2), such as calcium and calcium compounds such as calcium sulfate (CAS0 4), or aluminum oxide (A 1 2 0 3) Al
• the first material may contain or contain a mixture of a minimum aluminum compound or the like may include natural plant fiber such as cellulose fiber and / or artificial fiber such as polyacrylnitrile fiber.
• the first material contains the fibers contained in the second material by mixing the second material containing the chemical fibers and / or mineral fibers of the above, and then mixing and mixing water glass to form a dough. It is thought to work as a binder for silicon compounds, calcium compounds, aluminum compounds, etc., and then solidified by drying, without going through a high heat treatment process or melting process. As a result, a strong fireproof and heat insulating material can be obtained.
• the first materials are silicon dioxide and stone, such as slag powder discharged from steelworks, stone powder discharged from stone factories, and stone threat-based materials discharged from phosphate fertilizer plants. Reusing waste that contains a lot of threats and aluminum oxide can also be a part of waste management.
• the present invention basically Kei Motoya Kei-containing compounds such as silicon dioxide (S i 0 2>, calcium and calcium compounds such as calcium sulfate (CAS0 4), or aluminum oxide (A 1 2 0 3> etc.
• the first material for example, limestone powder, cement, slag powder, natural stone powder, glass powder, stone black powder, perlite, etc.
• the first material is silicon or silicon compound, It is preferable that the weight of the first material is at least 30%, preferably at least 40%, by weight of calcium or calcium compound or aluminum or aluminum compound, or a mixture thereof. Good to be included. If it is less than 30%, it is desirable to supplement it so that it becomes 30% or more, preferably 40% or more. The reason is that if it is less than 30%, the expected effect cannot be expected. If these materials show acidity or alkalinity, they should be neutralized before use.
• the second material containing fibers examples include natural fibers such as cellulose fiber cotton and artificial fibers such as polyacrylnidol fiber. Further, glass fibers, mineral fibers such as rock wool, and ceramic fibers in a broad sense can be used.
• a preferred second material for practicing the present invention is a cellulose fiber or a polyacrylonitrile fiber because it is inexpensive and does not cause pollution.
• Cellulose fiber is generally known as crushed newsprint or pulp, or crushed and then treated with a flame-retardant material. Not be. When polyacrylonitrile fiber is used, it is considered to be inferior to cellulose fiber because some toxic gas is generated during the combustion process.
• Water glass an aqueous solution der Luca compounds namely Kei acid sodium with oxidized sodium and silicon dioxide (S i 0 2 ⁇ Na 2 0 is also properly Na 2 S i 0 3), also properly is a silicon dioxide an aqueous solution of a compound namely potassium Ke i acid and potassium oxide (S i 0 2 ⁇ K 2 0 or K 2 S i 0 3).
• Tables 1 and 2 below show two examples of the composition of water glass, which is an aqueous solution of sodium sodium silicate
• Table 3 shows examples of the composition of water glass, which is an aqueous solution of potassium silicate. deep .
• the water glass From Tables 1, 2 and 3 below, it can be seen that in the case of an aqueous solution of sodium silicate, the density at 20 ° C. is 1255, 1710 Kg / m 3 , and the viscosity o O
• the first material and the second material add the above water glass, knead the material, and then dry and solidify the material, which has high heat insulation and high fire resistance. It is excellent and strong because the mixture of the first material and the second material is mixed with water glass to form a dough and then dried to form a second material such as cellulose fiber. It is considered that the fibers contained in the polyacrylonitrile fiber serve to bind together the silicon dioxide, calcium sulfate (stone threat) and aluminum oxide contained in the first material and the water glass.
• a silicon-silicon compound such as silicon dioxide, a calcium or calcium compound such as calcium sulfate, an aluminum or aluminum compound such as aluminum oxide, or a mixture thereof. Containing at least 30% by weight of the first material,
• natural fibers such as cellulose fibers, artificial fibers such as boria cryl nitrile fiber, mineral fibers, and ceramic fibers in a broad sense, or a mixture thereof are used.
• artificial fibers such as boria cryl nitrile fiber, mineral fibers, and ceramic fibers in a broad sense, or a mixture thereof are used.
• the mixing ratio of each material is as follows in the overlap ratio. First material 0-950 Kg, preferably 600-885 Kg
• Second material l, 900 Ks preferably 15-200 Kg
• the fibers contained in the second material work to bind the silicon dioxide contained in the water glass, and a fire-resistant material suitable for the intended use can be obtained.
• the first material has a value of 0 to 950 Kg and the lowest value is 0, which means this. If the first material is not used, the amount of water glass should be increased accordingly.
• the cellulose fiber is known as a heat insulating material. Silicon also works to increase the fire resistance of the cellulose fiber, and it is an effective fire insulation depending on the purpose of use.
• the first material is limestone powder, cement, and slag, as described above.
• Powder, natural stone powder, glass powder, stone powder, perlite, etc. are selected, and natural minerals such as bamboo and tokaolin are selected as natural minerals.
• Reusing waste can be a very advantageous measure, as it can be a part of waste management.
• the slag powder should be rich in silicon dioxide and stone threat, i.e. calcium sulphate, but should contain at least 5% of silicon dioxide.
• Is desirable, and, preferably, 10% or more is contained. Further, it is desirable that the total content be 30% or more, preferably 40% or more, including silicon dioxide, calcium sulfate and aluminum oxide. If it is less than 5%, it must be replenished so that it is at least 5%, preferably at least 10%, or less than 30% in total. It is desirable to replenish so that it becomes 30% or more, preferably 40% or more. If these materials show acidic or alkaline properties, they should be used after neutralization.
• For sodium silicate 20. What density of 1,255 to 1,710 Kg / m 3 in C, The 2 ° for calcium silicate.
• the manufacturing process will be described by using an example in which a density of 1250 to 1420 Kg /
• the powdered slag powder obtained in the first step is taken out by 885 Ks, and 885 Kg of the slag powder is mixed with 15 Kg of the same cellulose powder to make a mixture of 900 Kg in total.
• the 1-ton dough obtained in the third step is put into a mold and dried to form a mold, or sprayed on a target object (steel frame, wooden board, etc.).
• a target object steel frame, wooden board, etc.
• 1 ton of the dough contains a large amount of water, so depending on the thickness of the mold, etc., a substance that accelerates the drying process before putting in the mold
• a certain type of solidification accelerator may be mixed.
• solidification accelerators include Geodol in Denmark. It is known under the trade name of Geodur (Geodol stock solution is mixed with the above dough at 0 to 5% by overlapping ratio, and cement is 0 to 10% May be mixed).
• a non-combustible adhesive may be mixed to reinforce the adhesive strength.
• the method of drying is to leave it naturally at room temperature or to apply some heat (70 ° C to 200 ° C). If solidified by drying, it is removed from the mold as a finished product and used for use.
• the finished product is strong and has excellent heat insulation and fire resistance.
• Water glass (sodium silicate) 200Kg The physical properties when solidified to 1 ton by mixing are as follows.
• the harder the mixing ratio of cellulose / fiber the harder The temperature decreases, the thermal conductivity decreases, the fire resistance decreases, and the ripening shrinkage increases.
• the use of potassium silicate can produce a higher fire resistance as compared with the case of using sodium silicate, but the use of potassium silicate But expensive.
• the case where the cellulose fiber is used as the second material containing the fiber has been described.
• other vegetable fiber or chemical fiber such as polyacrylonitrile fiber or fiber is used.
• Mineral fibers such as neural fibers or a mixture thereof can also be used. The mixing ratio and the like when using them are almost the same as those described for the cellulose fiber.
• a preferred manufacturing process of a fireproof and heat insulating material was described as a part of the use of waste, but the idea of the present invention is to use a cellulose fiber polyacrylonitrile using water glass.
• the purpose is to solidify silicon compounds, calcium compounds, aluminum compounds, etc. with fibers such as rilfiber.
• the first material is a material containing silicon dioxide, calcium sulfate, and aluminum oxide.
• the first material is not limited to silicon dioxide, calcium sulfate, and aluminum oxide as long as it has a solidifying effect. In general, it may be a material containing silicon or a silicon compound, calcium or a calcium compound, and aluminum or an aluminum compound.
• waste from a factory is used as the first material, and cellulose fiber polyacrylonitrile is used as the second material containing fibers.
• fibers, etc. it is possible to use non-flammable materials while utilizing the heat insulation properties of cellulose fibers and polyacrylonitrile fibers, and to obtain an excellent fire-resistant and heat-insulating material that can withstand high temperatures without being polluted.
• there is the effect that industrial waste can be effectively used the manufacturing cost is low, the use of heat and the like can be avoided except for the drying process, and the manufacturing process is simple.
• the fire-resistant and heat-insulating materials according to the present invention can be used as a substitute for any asbestos-containing building materials and materials, and can also be used as a substitute for any other fire-resistant and heat-insulating materials. Yes, especially It can be used as a lightweight fire and heat insulator required for high-rise buildings. In addition, it can be used for fireproof and heat-insulating interior and exterior materials (filler between boards, sprayed fireproof covering materials, various tiles, furnace walls and lids and doors, various heat-insulating materials, etc.). It can be. The details are as follows.
• the fireproof and heat-insulating material of the present invention has excellent heat insulating properties and excellent mechanical strength.
• the stone threatening board is not suitable for use as an outer wall because it has water absorbency, but the fire-resistant and heat-insulating material of the present invention has a low water absorbability and can be used for an outer wall.
• It can be used as a fire-resistant and heat-insulating material by being inserted between boards (panels).
• It can be used as a matte surface lining material or bakatsua material for blast furnaces.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Ceramic Engineering (AREA)
• Materials Engineering (AREA)
• Structural Engineering (AREA)
• Organic Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Civil Engineering (AREA)
• Building Environments (AREA)
• Curing Cements, Concrete, And Artificial Stone (AREA)
• Thermal Insulation (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

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Cited By (6)

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Citations (3)

• 1992
  • 1992-12-22 WO PCT/JP1992/001683 patent/WO1994014721A1/ja active Application Filing
  • 1992-12-22 AU AU31720/93A patent/AU3172093A/en not_active Abandoned
• 1993
  • 1993-03-23 KR KR1019930004534A patent/KR960001432B1/ko not_active IP Right Cessation
• 1994
  • 1994-02-08 CN CN94101365A patent/CN1106772A/zh active Pending

Patent Citations (3)

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