CN107512916A - A kind of new self-bonding carborundum gunning refractory - Google Patents

A kind of new self-bonding carborundum gunning refractory Download PDF

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Publication number
CN107512916A
CN107512916A CN201710620708.0A CN201710620708A CN107512916A CN 107512916 A CN107512916 A CN 107512916A CN 201710620708 A CN201710620708 A CN 201710620708A CN 107512916 A CN107512916 A CN 107512916A
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China
Prior art keywords
parts
carborundum
powder
new self
gunning refractory
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Application number
CN201710620708.0A
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Chinese (zh)
Inventor
马少杰
杨小猛
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SUZHOU NORETA NEW MATERIAL TECHNOLOGY Co Ltd
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SUZHOU NORETA NEW MATERIAL TECHNOLOGY Co Ltd
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Priority to CN201710620708.0A priority Critical patent/CN107512916A/en
Publication of CN107512916A publication Critical patent/CN107512916A/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66Monolithic refractories or refractory mortars, including those whether or not containing clay
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38Non-oxide ceramic constituents or additives
    • C04B2235/3817Carbides
    • C04B2235/3826Silicon carbides
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422Carbon
    • C04B2235/425Graphite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/428Silicon
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/447Phosphates or phosphites, e.g. orthophosphate or hypophosphite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52Constituents or additives characterised by their shapes
    • C04B2235/5208Fibers
    • C04B2235/5212Organic

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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)
  • Ceramic Products (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

The invention discloses a kind of new self-bonding carborundum gunning refractory, it is made of materials such as bauxite chamotte, Brown Alundum, carborundum, silica, Si micro mists, carbon materials and ultralow aluminous cements.At high temperature, the Si powder in material for repairing and the generated in-situ fibrous SiC of carbon materials are interspersed in the space of corundum skeleton structure, fill stomata, block the main thoroughfare of slag penetration, are advantageous to improve resistance to slag corrosion.The SiC raw materials of addition add the non-oxide content in matrix of materials, are advantageous to further improve the corrosion resistance of material.The present invention is constructed using Wet spray techniques, and raising is obtained in terms of construction quality and efficiency.The present invention can improve the resistance to slag corrosion of the iron runner after repairing, the raising of iron-resistant water erosion and iron, and chemistry-resistant characteristic is strong, good thermal shock stability, service life length.

Description

A kind of new self-bonding carborundum gunning refractory
【Technical field】
The present invention relates to the technical field of metal smelt, particularly a kind of technical field of new self-bonding carborundum gunning refractory.
【Background technology】
Blast furnace iron outlet groove carries blast-melted and slag discharge, is related to the stable operation of blast furnace, the quality of its refractory material The castable of the concern of refractory material worker and ironworks user, especially sow is constantly subjected to, research is a lot.But in day In normal production, also using it is many for the iron runners of blast furnace, Zhigou, slag runner, iron mouth repairing, have a snack, the high-temperature operation such as safeguard The miscellaneous mud repairing materials needed, these material prices are low, carry no weight, but have an impact to production.Safeguard and use used at present Ditch material material is generally silicic acid aluminium material, using the alumina aggregate without using, adds the preparation such as well as clay fines and coke powder, pitch Form.It has that compression strength is low, and the product of some manufacturer productions only has 5MPa, and erosion-resisting characteristics is poor, and carbon content is big, uses the longevity Order the deficiencies of short, and production cost is high.
【The content of the invention】
The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of new self-bonding carborundum gunning refractory, can Improve resistance to slag corrosion, the raising of iron-resistant water erosion and the iron of the iron runner after repairing, chemistry-resistant characteristic is strong, thermal shock Stability is good, service life length.
To achieve the above object, the present invention proposes a kind of new self-bonding carborundum gunning refractory, including following components and The mass ratio of each component is:
Preferably, the bauxite chamotte is particle < 0.625mm fine powder, the purity of the bauxite chamotte is more than 95%, the Brown Alundum raw material is particle < 0.065mm fine powder, and the purity of the Brown Alundum raw material is more than 90%, the carbon SiClx raw material is particle < 0.085mm fine powder, and the purity of the sic raw material is more than 92%, the ultralow aluminous cement Raw material is particle < 0.815mm fine powder.
Preferably, the explosion-proof fiber is polyurethanes fiber.
Preferably, the mass ratio of each component is:Bauxite chamotte:3 parts;Brown Alundum:30 parts;Graphite is micro- Powder:10 parts;Alumina powder:8 parts;Metal silicon powder:5 parts;Carborundum:10 parts;Ultralow aluminous cement:20 parts;Explosion-proof fibre Dimension:2 parts;Ultrafine silica powder:5 parts;Calgon:3 parts.
Preferably, the mass ratio of each component is:Bauxite chamotte:30 parts;Brown Alundum:25 parts;Graphite is micro- Powder:12 parts;Alumina powder:8 parts;Metal silicon powder:10 parts;Carborundum:12 parts;Ultralow aluminous cement:25 parts;Explosion-proof fibre Dimension:2 parts;Ultrafine silica powder:7 parts;Calgon:3 parts.
Preferably, the mass ratio of each component is:Bauxite chamotte:35 parts;Brown Alundum:20 parts;Graphite is micro- Powder:15 parts;Alumina powder:10 parts;Metal silicon powder:8 parts;Carborundum:15 parts;Ultralow aluminous cement:30 parts;Explosion-proof fibre Dimension:3 parts;Ultrafine silica powder:10 parts;Calgon:4 parts.
Beneficial effects of the present invention:The present invention is micro- using bauxite chamotte, Brown Alundum, carborundum, silica, Si High-quality material for repairing made of the materials such as powder, carbon materials and ultralow aluminous cement.At high temperature, the Si powder and carbon in material for repairing The generated in-situ fibrous SiC of cellulosic material is interspersed in the space of corundum skeleton structure, fills stomata, blocks the master of slag penetration Passage is wanted, is advantageous to improve resistance to slag corrosion.The SiC raw materials of addition add the non-oxide content in matrix of materials, favorably In the corrosion resistance for further improving material.In CaO and matrix of materials in the SiO and slag that are generated after SiC high-temperature oxydations Al2O3, reaction generation eutectic phase CAS2 make material gradually by corrode.Slag and anorthite can also from corroding layer endosmosis, but Increasing SiC can be run into stop, and corrode the raw CaO6A12O3 of the reactions of the CaO in corundum in granules and slag in layer, its Fusing point is 1830 DEG C, is fixed up on corundum in granules top layer, does not penetrate into material further, strengthens the stabilization of structure Property, improve resistance to slag corrosion.The product is constructed using Wet spray techniques, and raising is obtained in terms of construction quality and efficiency. The present invention can improve the resistance to slag corrosion of the iron runner after repairing, iron-resistant water erosion and iron improves, resistance to chemical attack Performance is strong, good thermal shock stability, service life length.
The feature and advantage of the present invention will be described in detail by embodiment.
【Embodiment】
A kind of new self-bonding carborundum gunning refractory of the present invention, including the mass ratio of following components and each component is:
The bauxite chamotte is particle < 0.625mm fine powder, and the purity of the bauxite chamotte is described more than 95% Brown Alundum raw material is particle < 0.065mm fine powder, and the purity of the Brown Alundum raw material is more than 90%, and the sic raw material is Particle < 0.085mm fine powder, the purity of the sic raw material are more than 92%, and the ultralow aluminous cement raw material is particle < 0.815mm fine powder.
The explosion-proof fiber is polyurethanes fiber.
Embodiment one:Bauxite chamotte:3 parts;Brown Alundum:30 parts;Graphite microparticles:10 parts;Alumina powder:8 parts;Gold Belong to silicon powder:5 parts;Carborundum:10 parts;Ultralow aluminous cement:20 parts;Explosion-proof fiber:2 parts;Ultrafine silica powder:5 parts;Six is inclined Sodium phosphate:3 parts.
Embodiment two:Bauxite chamotte:30 parts;Brown Alundum:25 parts;Graphite microparticles:12 parts;Alumina powder:8 parts; Metal silicon powder:10 parts;Carborundum:12 parts;Ultralow aluminous cement:25 parts;Explosion-proof fiber:2 parts;Ultrafine silica powder:7 parts; Calgon:3 parts.
Embodiment three:Bauxite chamotte:35 parts;Brown Alundum:20 parts;Graphite microparticles:15 parts;Alumina powder:10 parts; Metal silicon powder:8 parts;Carborundum:15 parts;Ultralow aluminous cement:30 parts;Explosion-proof fiber:3 parts;Ultrafine silica powder:10 parts; Calgon:4 parts.
The present invention is to use bauxite chamotte, Brown Alundum, carborundum, silica, Si micro mists, carbon materials and ultralow aluminium High-quality material for repairing made of the materials such as sour calcium cement.At high temperature, the Si powder in material for repairing and the generated in-situ fibre of carbon materials Dimension shape SiC is interspersed in the space of corundum skeleton structure, is filled stomata, is blocked the main thoroughfare of slag penetration, be advantageous to improve Resistance to slag corrosion.The SiC raw materials of addition add the non-oxide content in matrix of materials, are advantageous to further improve material Corrosion resistance.The Al2O3 in CaO and matrix of materials in the SiO and slag that are generated after SiC high-temperature oxydations, reaction generation eutectic Phase CAS2 makes material gradually by corrode.Slag and anorthite can also be from erosion layer endosmosises, but can run into increasing SiC Stop, and corrode the raw CaO6A12O3 of the reactions of the CaO in corundum in granules and slag in layer, its fusing point is 1830 DEG C, in corundum Particle top layer is fixed up, and is not penetrated into material further, strengthens the stability of structure, improves resistance to slag corrosion.This Invention is constructed using Wet spray techniques, and raising is obtained in terms of construction quality and efficiency.After the present invention can make repairing The resistance to slag corrosion of iron runner, iron-resistant water erosion improve and iron improves, and chemistry-resistant characteristic is strong, good thermal shock stability, Service life is grown.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after Scheme belong to protection scope of the present invention.

Claims (5)

  1. A kind of 1. new self-bonding carborundum gunning refractory, it is characterised in that:Mass ratio including following components and each component is:
    A kind of new self-bonding carborundum gunning refractory as claimed in claim 1, it is characterised in that:The bauxite chamotte is Particle < 0.625mm fine powder, the purity of the bauxite chamotte are more than 95%, and the Brown Alundum raw material is particle < 0.065mm fine powder, the purity of the Brown Alundum raw material are more than 90%, and the sic raw material is the thin of particle < 0.085mm Powder, the purity of the sic raw material are more than 92%, and the ultralow aluminous cement raw material is particle < 0.815mm fine powder.
  2. A kind of 2. new self-bonding carborundum gunning refractory as claimed in claim 1, it is characterised in that:The explosion-proof fiber is poly- Urethane fiber.
  3. A kind of 3. new self-bonding carborundum gunning refractory as claimed in claim 1, it is characterised in that:Including following components and respectively The fraction scale of component is:Bauxite chamotte:3 parts;Brown Alundum:30 parts;Graphite microparticles:10 parts;Alumina powder:8 parts; Metal silicon powder:5 parts;Carborundum:10 parts;Ultralow aluminous cement:20 parts;Explosion-proof fiber:2 parts;Ultrafine silica powder:5 parts;Six Sodium metaphosphate:3 parts.
  4. A kind of 4. new self-bonding carborundum gunning refractory as claimed in claim 1, it is characterised in that:Including following components and respectively The fraction scale of component is:Bauxite chamotte:30 parts;Brown Alundum:25 parts;Graphite microparticles:12 parts;Alumina powder:8 parts; Metal silicon powder:10 parts;Carborundum:12 parts;Ultralow aluminous cement:25 parts;Explosion-proof fiber:2 parts;Ultrafine silica powder:7 parts; Calgon:3 parts.
  5. A kind of 5. new self-bonding carborundum gunning refractory as claimed in claim 1, it is characterised in that:Including following components and respectively The fraction scale of component is:Bauxite chamotte:35 parts;Brown Alundum:20 parts;Graphite microparticles:15 parts;Alumina powder:10 Part;Metal silicon powder:8 parts;Carborundum:15 parts;Ultralow aluminous cement:30 parts;Explosion-proof fiber:3 parts;Ultrafine silica powder:10 Part;Calgon:4 parts.
CN201710620708.0A 2017-07-27 2017-07-27 A kind of new self-bonding carborundum gunning refractory Withdrawn CN107512916A (en)

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CN201710620708.0A CN107512916A (en) 2017-07-27 2017-07-27 A kind of new self-bonding carborundum gunning refractory

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Application Number Priority Date Filing Date Title
CN201710620708.0A CN107512916A (en) 2017-07-27 2017-07-27 A kind of new self-bonding carborundum gunning refractory

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115872730A (en) * 2022-11-28 2023-03-31 湖北兴龙高温节能材料有限公司 Anti-slag-sticking thermal spray repair material for foundry ladle and preparation method and use method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115872730A (en) * 2022-11-28 2023-03-31 湖北兴龙高温节能材料有限公司 Anti-slag-sticking thermal spray repair material for foundry ladle and preparation method and use method thereof
CN115872730B (en) * 2022-11-28 2023-11-07 湖北兴龙高温节能材料有限公司 Slag-sticking-preventing thermal-state gunning material for ladle, and preparation method and use method thereof

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Application publication date: 20171226