CN111320464A - Corundum self-flow castable - Google Patents

Corundum self-flow castable Download PDF

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Publication number
CN111320464A
CN111320464A CN201811521733.4A CN201811521733A CN111320464A CN 111320464 A CN111320464 A CN 111320464A CN 201811521733 A CN201811521733 A CN 201811521733A CN 111320464 A CN111320464 A CN 111320464A
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China
Prior art keywords
parts
corundum
fused white
white corundum
self
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CN201811521733.4A
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Chinese (zh)
Inventor
曾辉
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Hongjiang Sanxing Metallurgical Charge Co ltd
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Hongjiang Sanxing Metallurgical Charge Co ltd
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Priority to CN201811521733.4A priority Critical patent/CN111320464A/en
Publication of CN111320464A publication Critical patent/CN111320464A/en
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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
    • C04B35/10—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
    • 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
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
    • 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
    • C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
    • 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
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427—Silicates other than clay, e.g. water glass

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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)

Abstract

The invention provides a corundum self-flow castable which is prepared from the following raw materials in parts by weight: 40-60 parts of fused white corundum aggregate, 30-50 parts of fused white corundum fine powder, 12-20 parts of portland cement, 5-12 parts of hydrated lime, 20-30 parts of alumina micro powder, 1-3 parts of water reducing agent, 6-9 parts of carbon black, 12-16 parts of melamine and 1-3 parts of binding agent. The corundum self-flowing castable disclosed by the invention has good fluidity, adjustable fluidity and good compressive strength, can be used for pouring without a vibrator during pouring, reduces gaps generated during pouring, prolongs the service life of a pouring body, is not influenced by the construction environment, can be used for pouring in a narrow space, has good practical performance, reduces the working strength of operators, and has good reliability.

Description

Corundum self-flow castable
Technical Field
The invention relates to the technical field of metallurgy, in particular to a corundum self-flow castable.
Background
The castable is a mixture of granular and powdery materials prepared by adding a certain amount of bonding agent into refractory materials, and the existing corundum castable needs a vibrator to operate when being poured, so that the following defects exist: influenced by workman field operation technique, the vibrator vibration is not enough, leads to pouring body density not enough, vibrates excessively the granule and produces the segregation, and the pouring body is easy to leave the cavity when the vibrator is taken out, and the vibrator exists the noise too big, influences the construction environment, and especially when the construction space is narrow and small, just can't use the vibration castable, has reduced the life of pouring body, and practicality is poor, has improved operating personnel's working strength.
Disclosure of Invention
In order to solve the technical problems, the invention provides the corundum self-flow castable, the relative plastic viscosity of the corundum self-flow castable can be reduced by adding the alumina micro powder, the external friction force and the internal viscous force in the flowing process are reduced, and the self-flow value is increased.
The invention provides a corundum self-flow castable which is prepared from the following raw materials: the composite material comprises fused white corundum aggregate, fused white corundum fine powder, portland cement, hydrated lime, alumina micro powder, a water reducing agent, carbon black, melamine and a binding agent.
As a further improvement of the invention, the health-care food is prepared from the following raw materials in parts by weight: 40-60 parts of fused white corundum aggregate, 30-50 parts of fused white corundum fine powder, 12-20 parts of portland cement, 5-12 parts of hydrated lime, 20-30 parts of alumina micro powder, 1-3 parts of water reducing agent, 6-9 parts of carbon black, 12-16 parts of melamine and 1-3 parts of binding agent.
As a further improvement of the invention, the health-care food is prepared from the following raw materials in parts by weight: 43-57 parts of fused white corundum aggregate, 32-46 parts of fused white corundum fine powder, 13-18 parts of portland cement, 6-11 parts of hydrated lime, 22-28 parts of alumina micro powder, 2-3 parts of water reducing agent, 7-9 parts of carbon black, 13-16 parts of melamine and 1-2 parts of binding agent.
As a further improvement of the invention, the health-care food is prepared from the following raw materials in parts by weight: 48 parts of fused white corundum aggregate, 35 parts of fused white corundum fine powder, 15 parts of portland cement, 8 parts of hydrated lime, 24 parts of alumina micro powder, 2 parts of water reducing agent, 8 parts of carbon black, 14 parts of melamine and 1 part of binding agent.
As a further improvement of the invention, the health-care food is prepared from the following raw materials in parts by weight: 52 parts of fused white corundum aggregate, 43 parts of fused white corundum fine powder, 17 parts of portland cement, 10 parts of hydrated lime, 26 parts of alumina micro powder, 3 parts of water reducing agent, 8 parts of carbon black, 15 parts of melamine and 2 parts of binding agent.
As a further improvement of the invention, the water reducing agent is a mixture of ADW3 and casein, and the mass ratio is 1: 1.
As a further improvement of the invention, the binder is calcium aluminate cement.
As a further improvement of the invention, the grain size of the fused white corundum aggregate is between 3 and 5 mm.
As a further improvement of the invention, the particle size of the fused white corundum fine powder is less than 1 mm.
The invention has the following beneficial effects:
1. the added alumina micro powder can reduce the relative plastic viscosity of the corundum self-flow castable, reduce the external friction and the internal viscous force in the flow process and increase the self-flow value;
2. the fine-grained corundum aggregate can obviously improve the self-flow value and the relative plastic viscosity of the castable, and the coarse-grained corundum aggregate can obviously improve the relative yield stress of the castable, so that the effect of improving the performance of the castable is achieved;
3. the corundum self-flowing castable disclosed by the invention has good fluidity, adjustable fluidity and good compressive strength, can be used for pouring without a vibrator during pouring, reduces gaps generated during pouring, prolongs the service life of a pouring body, is not influenced by the construction environment, can be used for pouring in a narrow space, has good practical performance, reduces the working strength of operators, and has good reliability.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the embodiments described are only some representative embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
The raw materials comprise the following components in parts by weight: 40 parts of fused white corundum aggregate, 30 parts of fused white corundum fine powder, 12 parts of portland cement, 5 parts of hydrated lime, 20 parts of alumina micro powder, 1 part of water reducing agent, 6 parts of carbon black, 12 parts of melamine and 1 part of binding agent.
The water reducing agent is a mixture of ADW3 and casein, and the mass ratio is 1: 1.
The binding agent is calcium aluminate cement.
The granularity of the electro-fused white corundum aggregate is 3-5 mm.
The granularity of the fused white corundum fine powder is less than 1 mm.
Example 2
The raw materials comprise the following components in parts by weight: 60 parts of fused white corundum aggregate, 50 parts of fused white corundum fine powder, 20 parts of portland cement, 12 parts of hydrated lime, 30 parts of alumina micro powder, 3 parts of water reducing agent, 9 parts of carbon black, 16 parts of melamine and 3 parts of binding agent.
The water reducing agent is a mixture of ADW3 and casein, and the mass ratio is 1: 1.
The binding agent is calcium aluminate cement.
The granularity of the electro-fused white corundum aggregate is 3-5 mm.
The granularity of the fused white corundum fine powder is less than 1 mm.
Example 3
The raw materials comprise the following components in parts by weight: 43 parts of fused white corundum aggregate, 32 parts of fused white corundum fine powder, 13 parts of portland cement, 6 parts of hydrated lime, 22 parts of alumina micro powder, 2 parts of water reducing agent, 7 parts of carbon black, 13 parts of melamine and 1 part of binding agent.
The water reducing agent is a mixture of ADW3 and casein, and the mass ratio is 1: 1.
The binding agent is calcium aluminate cement.
The granularity of the electro-fused white corundum aggregate is 3-5 mm.
The granularity of the fused white corundum fine powder is less than 1 mm.
Example 4
The raw materials comprise the following components in parts by weight: 57 parts of fused white corundum aggregate, 46 parts of fused white corundum fine powder, 18 parts of portland cement, 11 parts of hydrated lime, 28 parts of alumina micro powder, 3 parts of water reducing agent, 9 parts of carbon black, 16 parts of melamine and 2 parts of binding agent.
The water reducing agent is a mixture of ADW3 and casein, and the mass ratio is 1: 1.
The binding agent is calcium aluminate cement.
The granularity of the electro-fused white corundum aggregate is 3-5 mm.
The granularity of the fused white corundum fine powder is less than 1 mm.
Example 5
The raw materials comprise the following components in parts by weight: 48 parts of fused white corundum aggregate, 35 parts of fused white corundum fine powder, 15 parts of portland cement, 8 parts of hydrated lime, 24 parts of alumina micro powder, 2 parts of water reducing agent, 8 parts of carbon black, 14 parts of melamine and 1 part of binding agent.
The water reducing agent is a mixture of ADW3 and casein, and the mass ratio is 1: 1.
The binding agent is calcium aluminate cement.
The granularity of the electro-fused white corundum aggregate is 3-5 mm.
The granularity of the fused white corundum fine powder is less than 1 mm.
Example 6
The raw materials comprise the following components in parts by weight: 52 parts of fused white corundum aggregate, 43 parts of fused white corundum fine powder, 17 parts of portland cement, 10 parts of hydrated lime, 26 parts of alumina micro powder, 3 parts of water reducing agent, 8 parts of carbon black, 15 parts of melamine and 2 parts of binding agent.
The water reducing agent is a mixture of ADW3 and casein, and the mass ratio is 1: 1.
The binding agent is calcium aluminate cement.
The granularity of the electro-fused white corundum aggregate is 3-5 mm.
The granularity of the fused white corundum fine powder is less than 1 mm.
Test example 1
The corundum self-flow castable described in examples 1 to 6 of the present invention was subjected to a performance test, and the results are shown in table 1.
TABLE 1
Figure BDA0001903372620000031
Figure BDA0001903372620000041
Compared with the prior art, the added alumina micro powder can reduce the relative plastic viscosity of the corundum self-flow castable, reduce the external friction force and the internal viscous force in the flow process and increase the self-flow value; the fine-grained corundum aggregate can obviously improve the self-flow value and the relative plastic viscosity of the castable, and the coarse-grained corundum aggregate can obviously improve the relative yield stress of the castable, so that the effect of improving the performance of the castable is achieved; the corundum self-flowing castable disclosed by the invention has good fluidity, adjustable fluidity and good compressive strength, can be used for pouring without a vibrator during pouring, reduces gaps generated during pouring, prolongs the service life of a pouring body, is not influenced by the construction environment, can be used for pouring in a narrow space, has good practical performance, reduces the working strength of operators, and has good reliability.
Various modifications may be made to the above without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is therefore intended to be limited not by the above description, but rather by the scope of the appended claims.

Claims (9)

1. The corundum self-flow castable is characterized by being prepared from the following raw materials: the composite material comprises fused white corundum aggregate, fused white corundum fine powder, portland cement, hydrated lime, alumina micro powder, a water reducing agent, carbon black, melamine and a binding agent.
2. The corundum self-flow castable according to claim 1, characterized by being prepared from the following raw materials in parts by weight: 40-60 parts of fused white corundum aggregate, 30-50 parts of fused white corundum fine powder, 12-20 parts of portland cement, 5-12 parts of hydrated lime, 20-30 parts of alumina micro powder, 1-3 parts of water reducing agent, 6-9 parts of carbon black, 12-16 parts of melamine and 1-3 parts of binding agent.
3. The corundum self-flow castable according to claim 2, characterized by being prepared from the following raw materials in parts by weight: 43-57 parts of fused white corundum aggregate, 32-46 parts of fused white corundum fine powder, 13-18 parts of portland cement, 6-11 parts of hydrated lime, 22-28 parts of alumina micro powder, 2-3 parts of water reducing agent, 7-9 parts of carbon black, 13-16 parts of melamine and 1-2 parts of binding agent.
4. The corundum self-flow castable according to claim 3, characterized by being prepared from the following raw materials in parts by weight: 48 parts of fused white corundum aggregate, 35 parts of fused white corundum fine powder, 15 parts of portland cement, 8 parts of hydrated lime, 24 parts of alumina micro powder, 2 parts of water reducing agent, 8 parts of carbon black, 14 parts of melamine and 1 part of binding agent.
5. The corundum self-flow castable according to claim 3, characterized by being prepared from the following raw materials in parts by weight: 52 parts of fused white corundum aggregate, 43 parts of fused white corundum fine powder, 17 parts of portland cement, 10 parts of hydrated lime, 26 parts of alumina micro powder, 3 parts of water reducing agent, 8 parts of carbon black, 15 parts of melamine and 2 parts of binding agent.
6. The corundum self-flow castable material according to claim 1, characterized in that the water reducing agent is a mixture of ADW3 and casein in a mass ratio of 1: 1.
7. The corundum self-flowing castable material according to claim 1, wherein the binder is calcium aluminate cement.
8. The corundum self-flow castable according to claim 1, wherein the fused white corundum aggregate has a particle size of 3-5 mm.
9. The corundum self-flow castable according to claim 1, wherein the fused white corundum fine powder has a particle size of less than 1 mm.
CN201811521733.4A 2018-12-13 2018-12-13 Corundum self-flow castable Withdrawn CN111320464A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113636830A (en) * 2021-08-10 2021-11-12 山西禄纬堡太钢耐火材料有限公司 Self-flow castable containing recycled corundum castable and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113636830A (en) * 2021-08-10 2021-11-12 山西禄纬堡太钢耐火材料有限公司 Self-flow castable containing recycled corundum castable and preparation method thereof

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