CN106946558B - Forsterite-periclase-spinel complex phase light refractory material and preparation method thereof - Google Patents

Forsterite-periclase-spinel complex phase light refractory material and preparation method thereof Download PDF

Info

Publication number
CN106946558B
CN106946558B CN201710258401.0A CN201710258401A CN106946558B CN 106946558 B CN106946558 B CN 106946558B CN 201710258401 A CN201710258401 A CN 201710258401A CN 106946558 B CN106946558 B CN 106946558B
Authority
CN
China
Prior art keywords
forsterite
periclase
refractory material
complex phase
phase light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710258401.0A
Other languages
Chinese (zh)
Other versions
CN106946558A (en
Inventor
赵飞
葛铁柱
刘新红
贾全利
任桢
陈留刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Jinheyuan Refractory Co ltd
Original Assignee
Zhengzhou University
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
Application filed by Zhengzhou University filed Critical Zhengzhou University
Priority to CN201710258401.0A priority Critical patent/CN106946558B/en
Publication of CN106946558A publication Critical patent/CN106946558A/en
Application granted granted Critical
Publication of CN106946558B publication Critical patent/CN106946558B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • C04B35/16—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 silicates other than clay
    • C04B35/20—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 silicates other than clay rich in magnesium oxide, e.g. forsterite
    • 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
    • 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
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • 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
    • C04B2235/36—Glass starting materials for making ceramics, e.g. silica glass
    • 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
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/444—Halide containing anions, e.g. bromide, iodate, chlorite
    • 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
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
    • 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

Abstract

The invention relates to a forsterite-periclase-spinel complex phase light refractory material and a preparation method thereof. The method comprises the following steps: uniformly mixing 10-70% of magnesia raw material, 1-60% of magnesium-silicon raw material, 1-30% of silica raw material and 5-30% of aluminum-silicon pore-forming agent, and then adding a bonding agent accounting for 2-10% of the sum of the mass percentages of the raw materials for mixing to obtain mixed pug; and (3) mechanically pressing and molding the pug to obtain a blank, drying the blank, and then putting the blank into a high-temperature kiln to calcine for 2-8 hours at 1500-1650 ℃ to obtain the forsterite-periclase-spinel complex phase light refractory material. The invention adopts the aluminum-silicon inorganic light material as the pore-increasing agent, no gas is discharged from the interior of the material in the production process, and a large number of through air holes are not formed; the prepared forsterite-periclase-spinel complex phase light refractory material has the characteristics of high compressive strength, good heat insulation performance and excellent high-temperature performance.

Description

Forsterite-periclase-spinel complex phase light refractory material and preparation method thereof
Technical Field
The invention relates to a light heat-insulating refractory material used in the field of refractory materials, in particular to a forsterite-periclase-spinel complex phase light refractory material and a preparation method thereof.
Background
The light heat-insulating refractory material with excellent performance is adopted in the high-temperature kiln, so that the heat efficiency of the kiln can be effectively improved, and the heat consumption is reduced. However, the conventional porous refractory materials have a loose structure, weak bonding between crystals, and high through open porosity, which results in poor compressive strength, low use temperature, and general thermal insulation effect, so that the accelerated development of high-performance lightweight thermal insulation refractory materials is one of the most important development directions at present.
The prior complex phase porous material is corundum-mullite and periclaseForsterite-based, forsterite-periclase-spinel complex phase refractories are used relatively rarely. Literature research shows that the forsterite-periclase-spinel complex phase refractory material has excellent normal temperature and high temperature performance. (Othman A M G, Khalil N M. organization of magnetism reflexopathogens through the formation of property-form-strain phases [ J ]. Ceramics international, 2005, (31): 1117-. In order to further enrich the variety of porous light materials, the invention patent of porous periclase-forsterite-spinel composite ceramic material and a preparation method thereof (CN 104086206A) discloses that magnesite, clay powder and Al (OH)3The powder is used as main raw material, and CO is decomposed in the heating process of magnesite2The pore-forming mechanism of the gas prepares the porous periclase-forsterite-spinel composite ceramic material. In the method, a large amount of gas is discharged from the interior of the material in the calcining process, and most prepared pores are through pores, so that the normal-temperature and high-temperature mechanical properties of the material are adversely affected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the forsterite-periclase-spinel complex phase light refractory material with high compressive strength, good heat insulation performance, high use temperature and good high-temperature volume stability and the preparation method thereof.
The purpose of the invention can be realized by the following technical scheme:
the forsterite-periclase-spinel complex phase light refractory material comprises, by weight, 10-70% of a magnesia raw material, 1-60% of a magnesium-silicon raw material, 1-30% of a silica raw material, 5-30% of an aluminum-silicon pore-forming agent and 2-10% of a bonding agent, wherein the bonding agent is the sum of the raw materials in percentage by weight.
The magnesia raw material is selected from one or a combination of more of high-purity magnesia, sintered magnesia, fused magnesia, seawater magnesia and brine magnesia, and the particle size of the raw material is less than or equal to 0.088 mm. The magnesium-silicon material is selected from one or more of high-silicon magnesite, magnesium-silicon sand, forsterite, serpentine and talc, and has particle diameter of less than or equal to 0.088 mm. The silicon dioxide raw material is one or a combination of more of fused quartz, siliceous clinker or natural quartz, and SiO in the raw material2The mass percentage content is more than or equal to 98.0 percent. The aluminum-silicon pore-increasing agent is selected from one or a combination of more of vitrified micro bubbles, fly ash floating beads or closed-cell perlite. The binding agent is selected from one or more of paper pulp waste liquid, dextrin, magnesium chloride, polyethylene glycol or silica sol.
The preparation method comprises the following steps:
(1) uniformly mixing a magnesia raw material, a magnesium-silicon raw material, a silicon dioxide raw material and an aluminum-silicon pore-increasing agent, and then adding a bonding agent for mixing to obtain pug;
(2) pressing the pug by a machine to obtain a blank;
(3) and (3) drying the blank body, and then putting the blank body into a high-temperature kiln to calcine for 2-8 hours at 1500-1650 ℃ to obtain the forsterite-periclase-spinel complex phase light refractory material.
The forsterite-periclase-spinel complex phase light refractory material takes an inorganic light material as a pore-increasing agent, utilizes the mechanism of reaction diffusion of the inorganic material in the sintering process, and achieves the homogenization of components through the reaction diffusion; the prepared forsterite-periclase-spinel complex phase light refractory material takes forsterite as a main crystal phase and periclase and spinel as secondary crystal phases; the pore wall structure of the material is compact, and a large number of continuous through pores are not formed; the prepared forsterite-periclase-spinel complex phase light refractory material has the normal-temperature compressive strength of 15-80 MPa and the volume density of 1.2-2.0 g/cm3The refractoriness under load (0.2 MPa) is more than or equal to 1500 ℃.
The invention has the following beneficial effects:
the invention uses the aluminum-silicon inorganic light material as the pore-increasing agent, and avoids the through air holes formed by the organic pore-forming agent or the carbonate pore-forming agent due to the gas emission generated in the calcining process in the preparation process. The material adopts a high-temperature calcination process in the preparation process, and the formed hole wall has a compact structure, compact intercrystalline bonding and fewer through air holes, thereby being beneficial to obtaining better normal temperature performance and high temperature performance.
Drawings
FIG. 1 is an XRD pattern of a forsterite-periclase-spinel complex phase light weight refractory material.
FIG. 2 is a microstructure photograph of a forsterite-periclase-spinel complex phase lightweight refractory.
The specific implementation mode is as follows:
the invention will be further described with reference to the following examples:
example 1
Uniformly mixing 60% of sintered magnesia fine powder, 10% of magnesia silica sand fine powder, 15% of fused quartz and 15% of closed-cell perlite according to mass percent, adding dextrin accounting for the sum of the mass percent of the raw materials and 4% of the dextrin serving as an additive, and uniformly stirring to obtain mixed pug; pressing and molding the pug by a machine to obtain a blank body; and drying the blank, and calcining the blank in a high-temperature furnace for 5 hours at 1550 ℃ to obtain the forsterite-periclase-spinel complex phase light refractory material.
The technical indexes of the forsterite-periclase-spinel complex phase light refractory material prepared by the embodiment are as follows: bulk density 1.3g/cm3The compressive strength was 18MPa, and the refractoriness under load (0.2 MPa) was 1520 ℃.
Example 2
Uniformly mixing 55% of fused magnesia fine powder, 10% of serpentine, 15% of natural quartz and 20% of fly ash floating beads according to mass percent, adding 5% of pulp waste liquid of the raw materials in mass percent as an additive, and uniformly stirring to obtain mixed pug; pressing and molding the pug by a machine to obtain a blank body; and drying the blank, and calcining the blank in a high-temperature furnace at 1600 ℃ for 6 hours to obtain the forsterite-periclase-spinel complex phase light refractory material.
The technical indexes of the forsterite-periclase-spinel complex phase light refractory material prepared by the embodiment are as follows: bulk density 1.25g/cm3The compressive strength was 32MPa, and the refractoriness under load (0.2 MPa) was 1580 ℃.
Example 3
Uniformly mixing 60% of high-purity magnesite fine powder, 10% of forsterite, 10% of siliceous clinker and 20% of vitrified micro bubbles according to the mass percentage, adding magnesium chloride accounting for 5% of the mass percentage of the raw materials as an additive, and uniformly stirring to obtain mixed pug; pressing and molding the pug by a machine to obtain a blank body; and drying the blank, and calcining the blank in a high-temperature furnace at 1580 ℃ for 4 hours to obtain the forsterite-periclase-spinel complex phase light refractory material.
The technical indexes of the forsterite-periclase-spinel complex phase light refractory material prepared by the embodiment are as follows: bulk density 1.5g/cm3The compressive strength was 38MPa, and the refractoriness under load (0.2 MPa) was 1530 ℃.

Claims (1)

1. The preparation method of the forsterite-periclase-spinel complex phase light refractory material is characterized in that the refractory material comprises the following raw materials in percentage by weight:
wherein, the high-purity magnesite powder accounts for 60 percent, the forsterite accounts for 10 percent, the siliceous clinker accounts for 10 percent, the vitrified micro-beads accounts for 20 percent, and the magnesium chloride accounts for 5 percent of the total weight percentage of the raw materials;
the preparation method comprises the following steps:
uniformly mixing high-purity magnesite fine powder, forsterite, siliceous clinker and vitrified micro-beads, and then adding magnesium chloride for mixing to obtain pug;
step (2) pressing and molding the pug by a machine to obtain a blank body;
step (3) drying the blank body, and then putting the blank body into a high-temperature furnace to calcine for 4 hours at 1580 ℃ to obtain the forsterite-periclase-spinel complex phase light refractory material;
in the step (3), the vitrified micro bubbles are used as a pore-increasing agent, and in the sintering process, the vitrified micro bubbles achieve the homogenization of the components through a reaction diffusion mechanism, and the prepared forsterite-periclase-spinel complex phase light refractory material takes forsterite as a main crystal phase and periclase and spinel as a secondary crystal phase; the pore wall structure of the material is compact, and a large number of continuous through pores are not formed; the bulk density is 1.5g/cm3The compression strength was 38MPa, and the refractoriness under load was 1530 ℃ under the condition of 0.2 MPa.
CN201710258401.0A 2017-04-19 2017-04-19 Forsterite-periclase-spinel complex phase light refractory material and preparation method thereof Active CN106946558B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710258401.0A CN106946558B (en) 2017-04-19 2017-04-19 Forsterite-periclase-spinel complex phase light refractory material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710258401.0A CN106946558B (en) 2017-04-19 2017-04-19 Forsterite-periclase-spinel complex phase light refractory material and preparation method thereof

Publications (2)

Publication Number Publication Date
CN106946558A CN106946558A (en) 2017-07-14
CN106946558B true CN106946558B (en) 2021-05-11

Family

ID=59477671

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710258401.0A Active CN106946558B (en) 2017-04-19 2017-04-19 Forsterite-periclase-spinel complex phase light refractory material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN106946558B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108129137A (en) * 2018-01-12 2018-06-08 安徽海螺暹罗耐火材料有限公司 Large-scale cement rotary kiln composite magnesium aluminate spinel brick and its production method
CN110922164B (en) * 2019-12-11 2021-03-26 中南大学 Preparation method of forsterite type complex phase heat insulation material
CN111747732A (en) * 2020-05-13 2020-10-09 九江市璀鑫新材料有限公司 High-tightness magnesium composite material and manufacturing method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101113097A (en) * 2007-06-29 2008-01-30 武汉钢铁(集团)公司 Infrared radiation porous ceramics on furnace lining firebrick and preparation method thereof
CN106431435A (en) * 2016-09-22 2017-02-22 郑州大学 Porous periclase-forsterite multiphase material and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101113097A (en) * 2007-06-29 2008-01-30 武汉钢铁(集团)公司 Infrared radiation porous ceramics on furnace lining firebrick and preparation method thereof
CN106431435A (en) * 2016-09-22 2017-02-22 郑州大学 Porous periclase-forsterite multiphase material and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Sintering of magnesia refractories through the formation of periclase–forsterite–spinel phases;A.G.M.Othman等;《Ceramics International》;20040615;第1117-1121页 *

Also Published As

Publication number Publication date
CN106946558A (en) 2017-07-14

Similar Documents

Publication Publication Date Title
CN107010968B (en) High-strength light-weight corundum-mullite refractory aggregate and preparation method thereof
Zhao et al. Transient liquid phase diffusion process for porous mullite ceramics with excellent mechanical properties
Guo et al. Effects of Al2O3 crystal types on morphologies, formation mechanisms of mullite and properties of porous mullite ceramics based on kyanite
CN106431371B (en) A kind of high-strength closed pore mullite material and preparation method thereof
Li et al. A simple and efficient way to prepare porous mullite matrix ceramics via directly sintering SiO2-Al2O3 microspheres
CN100378029C (en) Ceramic material of porous spinel, and preparation method
CN101215158A (en) Method for preparing lightweight magnesium-aluminum spinel raw material
CN106946558B (en) Forsterite-periclase-spinel complex phase light refractory material and preparation method thereof
CN106830958B (en) Low-aluminum low-heat-conduction alkali-resistant castable
WO2023159858A1 (en) Lightweight porous sound-absorbing ceramic material, preparation process and application thereof
JP5943032B2 (en) Manufacturing method of lightweight heat-insulating alumina / magnesia refractory
CN103274710A (en) Al2o3-Mgo-Cr2o3 casting material for insert tube of RH vacuum furnace
CN110668828B (en) Magnesium binder for cement-free castable and preparation method thereof
CN106830955B (en) Method for preparing unfired modified high-purity magnesium aluminate spinel composite brick by microwave drying
CN106431434B (en) A kind of obturator-type alumina base mullite material and preparation method thereof
JP2012031006A (en) Fire-resistant heat-insulating brick, and method of manufacturing the same
CN106431435A (en) Porous periclase-forsterite multiphase material and preparation method thereof
CN108017397A (en) Refractory brick containing quartz sand and preparation method thereof
CN111943642A (en) High-strength foamed ceramic and preparation method thereof
CN107043265B (en) Unfired magnesia-chrome brick for metallurgy and nonferrous smelting furnace and preparation method thereof
CN110922164B (en) Preparation method of forsterite type complex phase heat insulation material
Salvini et al. High temperature Al2O3-CA6 insulating foamed ceramics: processing and properties
CN111393156A (en) Preparation method of cordierite porous ceramic
CN110452009A (en) A kind of preparation method of in-situ preparation magnesium aluminate spinel whisker skeletal porous ceramics
CN108409308B (en) Gradient composition microporous corundum-spinel material and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20230414

Address after: 452370 Group 9, Songlou Village, Laiji Town, Xinmi City, Zhengzhou City, Henan Province

Patentee after: Zhengzhou jinheyuan refractory Co.,Ltd.

Address before: 450001 No. 100, science Avenue, hi tech Industrial Development Zone, Henan, Zhengzhou

Patentee before: Zhengzhou University