CN110256047A - A method of foamed ceramic is prepared using titanium-containing blast furnace slag and shale waste residue - Google Patents

A method of foamed ceramic is prepared using titanium-containing blast furnace slag and shale waste residue Download PDF

Info

Publication number
CN110256047A
CN110256047A CN201910626115.4A CN201910626115A CN110256047A CN 110256047 A CN110256047 A CN 110256047A CN 201910626115 A CN201910626115 A CN 201910626115A CN 110256047 A CN110256047 A CN 110256047A
Authority
CN
China
Prior art keywords
raw material
blast furnace
titanium
waste residue
furnace slag
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.)
Pending
Application number
CN201910626115.4A
Other languages
Chinese (zh)
Inventor
杨合
梁宗宇
马明龙
张华�
班邵璞
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.)
Northeastern University China
Original Assignee
Northeastern University China
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 Northeastern University China filed Critical Northeastern University China
Priority to CN201910626115.4A priority Critical patent/CN110256047A/en
Publication of CN110256047A publication Critical patent/CN110256047A/en
Pending legal-status Critical Current

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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/131—Inorganic additives
    • 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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
    • 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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/138—Waste materials; Refuse; Residues from metallurgical processes, e.g. slag, furnace dust, galvanic waste
    • 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
    • C04B33/00—Clay-wares
    • C04B33/24—Manufacture of porcelain or white ware
    • 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
    • C04B33/00—Clay-wares
    • C04B33/32—Burning methods
    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation 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
    • C04B2235/3205—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
    • C04B2235/3262—Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereof, e.g. MnO
    • 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
    • C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
    • 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
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/447—Phosphates or phosphites, e.g. orthophosphate, hypophosphite
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6562—Heating rate
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6567—Treatment time
    • 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
    • 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
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

Abstract

The present invention relates to a kind of methods for preparing foamed ceramic using titanium-containing blast furnace slag and shale waste residue, sequentially include the following steps: S1, prepare titanium-containing blast furnace slag, shale waste residue, silicon dioxide powder as raw material；S2, prepare borax, ball clay, foaming agent, magnesia, manganese oxide and sodium metaphosphate as additive；S3, slurry is made in wet-milling after whole raw materials and additive mixing；S4, it slurry is put into baking oven is dried, then crushed in pulverizer, powder is made, diameter of particle is 200~300 mesh；S5, it powder granule is filled into after mold the temperature type resistance furnace in carries out roasting foaming and Crystallization Process；It is cooling later to obtain foamed ceramic.Method preparation process of the invention is succinct, easy to operate, and titanium-containing blast furnace slag and shale waste residue used is waste, realizes the resource utilization of solid waste, and obtained foamed ceramic value of the product is high.

Description

A method of foamed ceramic is prepared using titanium-containing blast furnace slag and shale waste residue
Technical field
The present invention relates to a kind of methods for preparing foamed ceramic using titanium-containing blast furnace slag and shale waste residue, belong to material preparation Technical field.
Background technique
High temperature foamed ceramic has a large amount of closed pore, so having the performances such as lightweight, heat preservation, sound insulation, in addition ceramics are acidproof Caustic corrosion, it is ageing-resistant, it is applied in many fields.The ratio applied in terms of building is wide: (1) can be prepared into It is granular to be added in concrete, make building block loss of weight；(2) can be used to substitute traditional macromolecule wall heat insulation material, as outer Materials for wall reaches insulation effect；(3) material that can be used as interior decoration, plays the role of heat preservation and soundproof.In some spies Different field, such as military aspect, the filler that it can be used as hull play it is anti-settling, fire prevention, it is diamagnetic the effects of.Preparation foaming pottery The method of porcelain is very more, and some of them is more complicated, but process flow is easier to control, so scholars are exploring Foamed ceramic is prepared using cheap raw material, to widen its application.
There is vanadium titano-magnetite abundant in Panzhihua-Xichang Region, Panzhihua-Xichang Region v-ti magnetite ore reserves is close 10000000000 tons, association TiO28.7 hundred million tons, account for the 35.02% of World Titanium reserves.These resources are mainly deposited in the form of ilmenite The titanium after ore dressing there are about 54% enters iron ore concentrate, and during blast furnace ironmaking, titanium substantially enters titanium-containing blast furnace slag. Due to TiO in the titanium-containing blast furnace slag that discharges at present2Content be 23%~25%, and titaniferous ore disperse be distributed in clinker In, it is difficult to separate, therefore the comprehensive utilization difficulty of titanium-containing blast furnace slag is larger.
Shale is a kind of sedimentary rock, complicated component, but all joints with thin laminated or thin slice stratiform, mainly by clay The rock formed through pressure, temperature variation is deposited, in addition to clay mineral (such as kaolinite, hydromica, visits and carrys out stone at montmorillonite), Also containing there are many detrital mineral (such as quartz, feldspar, mica) and authigenic mineral (such as oxides and hydroxide of iron, aluminium, manganese Deng).Common kind is divided into black shale, culm, oil shale, siliceous shale, irony shale.Process of the shale in exploitation In can generate waste residue, these waste residues hardly result in resource utilization, can only largely store up, and do not only take up large area soil, can also Broken ring ecology, pollutes environment, how to efficiently use these waste residues is also that there is an urgent need for solve the problems, such as.
Summary of the invention
(1) technical problems to be solved
In order to solve the above problem of the prior art, the present invention provides a kind of to be prepared using titanium-containing blast furnace slag and shale waste residue The method of foamed ceramic, using titanium-containing blast furnace slag, shale waste residue and silicon dioxide powder as raw material, borax, ball clay, foaming Agent, magnesia, manganese oxide and sodium metaphosphate are as additive, through high-temperature roasting foaming, extensive resource utilization titaniferous While blast furnace slag and shale waste residue, performance preferably foamed ceramic material is made.
(2) technical solution
In order to achieve the above object, the main technical schemes that the present invention uses include:
A method of foamed ceramic is prepared using titanium-containing blast furnace slag and shale waste residue comprising following steps:
S1, prepare titanium-containing blast furnace slag, shale waste residue, silicon dioxide powder as raw material；
S2, prepare borax, ball clay, foaming agent, magnesia, manganese oxide and sodium metaphosphate as additive；
S3, whole raw materials and additive are mixed to form mixed material, then carry out wet-milling with ball mill, be uniformly mixed simultaneously Slurry is made；
S4, it slurry is put into baking oven being dried, then crushed in pulverizer, be made powder, diameter of particle is 200~ 300 mesh；
S5, by powder filled into mold, be subsequently placed in middle temperature type resistance furnace, carry out roasting foaming and crystallization mistake Journey；It is cooling later to obtain foamed ceramic.
In a preferred embodiment, in step sl, the titanium-containing blast furnace slag contains SiO by mass percentage2 28~29%, Al2O314~15%, Fe2O31~2%, CaO 26~27%, Na2O 0.03~0.04%, TiO219~ 20%, MgO 7~8%, K2O 0.7~0.8%, remaining is impurity.
In a preferred embodiment, in step sl, the shale waste residue contains SiO by mass percentage2 66 ~67%, Al2O315~16%, Fe2O35~6%, CaO 5~6%, Na2O 0.1~0.2%, TiO20.8~0.9%, MgO 3~4%, K2O 1~2%, remaining is impurity.
In a preferred embodiment, in step sl, titanium-containing blast furnace slag 10 by mass percentage in the raw material ~27%, shale waste residue accounts for 60~79%, and silicon dioxide powder accounts for 12~17%.
In a preferred embodiment, in step s 2, the borax accounts for the 2~4% of total mass of raw material, ball clay Account for the 3~5% of total mass of raw material, foaming agent accounts for the 0.3~0.5% of total mass of raw material, magnesia account for total mass of raw material 0.3~ 0.7%, manganese oxide accounts for the 0.5~1% of total mass of raw material, and sodium metaphosphate accounts for the 0.5~1% of total mass of raw material.
In a preferred embodiment, in step s3, when the wet-milling mixed material, mill ball and water quality Than for material: ball: water=1:1.8~2.4:0.6~1.0.
In a preferred embodiment, in step s 4, the drying dry 12~16h at 100~120 DEG C.
In a preferred embodiment, in step s 5, the temperature schedule in the roasting foaming and Crystallization Process Are as follows: furnace temperature is raised to 850~950 DEG C from room temperature with the rate of 8~10 DEG C/min, at least 30min is kept the temperature, then with 2~4 DEG C/min Heating rate be raised to 1050~1100 DEG C, keep the temperature 30~60min.
Through lot of experiment validation, TiO in titanium-containing blast furnace slag used in the present invention2Content is higher, TiO2It can be used as induction analysis Brilliant nucleus, to reach the condition for preparing foamed ceramic；SiO in shale waste residue2Content is higher, the more fusing point of quartz mineral compared with Height, and CaO, Al in titanium-containing blast furnace slag2O3Content is higher, according to SiO2-CaO-Al2O3Ternary phase diagrams obtains: when three constituent elements reach SiO when to eutectic point2Content is 63% or so.Calculation shows that titanium-containing blast furnace slag, shale waste residue and silicon dioxide powder are pressed (10~27%): (60~79%): (12~17%) ratio is mutually adulterated, and additional suitable fluxing agent (borax) can make original Expect congruent melting at a lower temperature, if the ratio of three is higher or lower than above-mentioned condition, the eutectic temperature of raw material can be made significantly It improves；Only with can be obtained by primary roasting, bulk density is small, and intensity is high, heat-insulated for the mixture that method of the invention obtains The good high-performance foamed ceramic of performance.
The bulk density for the foamed ceramic that the method for the present invention prepares is 0.216~0.398g/cm3, compression strength is 2.231~4.266MPa, thermal coefficient are 0.04~0.09W/ (mK).
(3) beneficial effect
The beneficial effects of the present invention are:
Method of the invention prepares the range of choice that foamed ceramic expands raw material using shale waste residue as primary raw material, drop Low production cost has huge facilitation to the energy conservation of building.
The method have the advantages that:
1) experimental implementation is simple, not complicated step；
2) titanium-containing blast furnace slag and shale waste residue are solid waste, realize the resource utilization of solid waste, obtain Foamed ceramic value of the product it is high；
3) it is only fired with a step, the foaming and controlled micro crystallization of foamed ceramic can be completed, cost substantially reduces, by testing Card, foamed ceramic are had excellent performance, and reach the standard (thermal coefficient≤0.05W/ (mK)) of national efficient thermal insulation material.
The method provided by the invention for preparing foamed ceramic using titanium-containing blast furnace slag and shale waste residue is easy to implement industrialization, The use of solid waste is raw material, meets the demand for development of national energy conservation and emission reduction, can realize that large area is once burnt in tunnel oven At any cutting as requested can be in heat preserving and insulating material, and fire proofing material, the fields such as construction material are used widely.
Specific embodiment
In order to preferably explain the present invention, in order to understand, below by specific embodiment, present invention work is retouched in detail It states.Wherein, partial size≤0.074mm of mixture used in the examples；The titanium-containing blast furnace slag of use contains by mass percentage SiO228~29%, Al2O314~15%, Fe2O31~2%, CaO 26~27%, Na2O 0.03~0.04%, TiO2 19 ~20%, MgO 7~8%, K2O 0.7~0.8%, remaining is impurity.The shale waste residue of use contains by mass percentage SiO266~67%, Al2O315~16%, Fe2O35~6%, CaO 5~6%, Na2O 0.1~0.2%, TiO20.8~ 0.9%, MgO 3~4%, K2O 1~2%, remaining is impurity.
Magnesia, manganese oxide, silicon dioxide powder and the sodium metaphosphate used in the following examples of the present invention is commercially available production Product.The mass ratio of mixture, mill ball and water is material: ball: water=1:(1.8~2.4 when ball milling): (0.6~1.0)；Mold is Pin-connected panel refractory brick kiln furnitures；The heating furnace used is middle temperature type resistance furnace.
Embodiment 1
The method for preparing foamed ceramic using titanium-containing blast furnace slag and shale waste residue, using following steps:
(1) prepare titanium-containing blast furnace slag, shale waste residue, silicon dioxide powder as raw material, by mass percentage: titaniferous Blast furnace slag accounts for 26.09%, and shale waste residue accounts for 60.87%, and silicon dioxide powder accounts for 13.04%；These raw materials are mixed, by mixture Partial size it is levigate to partial size≤0.074mm；
(2) prepare borax, ball clay, foaming agent, magnesia, manganese oxide and sodium metaphosphate as additive；In additive Borax accounts for 4% of total mass of raw material in step (1), and ball clay accounts for 4% of total mass of raw material in step (1), and foaming agent accounts for step (1) the 0.3% of total mass of raw material in, magnesia account for 0.5% of total mass of raw material in step (1), and manganese oxide accounts for step (1) Central Plains Expect the 1% of gross mass, sodium metaphosphate accounts for 1% of total mass of raw material in step (1)；
(3) by step (1) raw material and additive be mixed to form mixed material, then carry out wet-milling with ball mill, mix It closes uniformly and slurry is made；The mass ratio of mixture, mill ball and water is material: ball: water=1:2:0.6 when ball milling；
(4) slurry is put into baking oven to be dried, the dry 12h at 120 DEG C is dried for the uniformity for guaranteeing slurry Cheng Zhongxu is stirred, and is then crushed in pulverizer, and powder is made, and diameter of particle is 200~300 mesh；
(5) it by powder filled into mold, is subsequently placed in middle temperature type resistance furnace, carries out roasting foaming pore-creating；Roasting Temperature schedule in foaming poration process are as follows: furnace temperature is raised to 900 DEG C from room temperature with the rate of 8 DEG C/min, keeps the temperature 30min, then 1070 DEG C are raised to the heating rate of 3 DEG C/min, keeps the temperature 60min；
(6) room temperature is cooled to the furnace after the completion of roasting foaming pore-creating, obtain foamed ceramic material；It is drained using Archimedes The bulk density of method measurement sample.Thermal coefficient uses " GB/T 10294-2008 Technology of Steady State Thermal Resistance of Thermal Insulating Material and related characteristic Measurement Guarded hot plate " be measured.Using full-automatic pressure testing machine, (industrial test system is created in Jinan to be had compression strength Limit company, ZCQT-S50kN type) measurement, compression face size is about 80mm × 80mm, thickness of sample 80mm.It will test, foam The bulk density of ceramic material is 0.371g/cm3, compression strength 4.023MPa, thermal coefficient is 0.08W/ (mK).
Embodiment 2
With embodiment 1, difference is method:
(1) titanium-containing blast furnace slag accounts for 17.39% by mass percentage in raw material, and shale waste residue accounts for 69.57%, silicon dioxide powder Account for 13.04%；
(2) 900 DEG C are raised to the rate of 9 DEG C/min, keep the temperature 30min, be raised to 1070 DEG C with the rate of 3 DEG C/min, heat preservation 60min。
The foamed ceramic material of acquisition, its bulk density is 0.216g/cm after measured3, compression strength 2.231MPa leads Hot coefficient is 0.04W/ (mK).
Embodiment 3
With embodiment 1, difference is method:
(1) titanium-containing blast furnace slag accounts for 8.70% by mass percentage in raw material, and shale waste residue accounts for 78.26%, silicon dioxide powder Account for 13.04%；
(2) 900 DEG C are raised to the rate of 9 DEG C/min, keep the temperature 30min, be raised to 1060 DEG C with the rate of 3 DEG C/min, heat preservation 60min。
Foamed ceramic material is obtained, its bulk density is 0.398g/cm after measured3, compression strength 4.266MPa is thermally conductive Coefficient is 0.09W/ (mK).
Embodiment 4
The method for preparing foamed ceramic using titanium-containing blast furnace slag and shale waste residue, using following steps:
(1) prepare titanium-containing blast furnace slag, shale waste residue, silicon dioxide powder as raw material, titaniferous by mass percentage in raw material Blast furnace slag accounts for 17.39%, and shale waste residue accounts for 69.57%, and silicon dioxide powder accounts for 13.04%；Borax accounts for the total matter of raw material in additive The 3.5% of amount, ball clay accounts for the 5% of total mass of raw material, and foaming agent accounts for the 0.4% of total mass of raw material, and magnesia accounts for the total matter of raw material The 0.7% of amount, manganese oxide accounts for the 0.8% of total mass of raw material, and sodium metaphosphate accounts for the 0.8% of total mass of raw material；
(2) whole raw materials and additive are mixed to form mixed material, then carry out wet-milling with ball mill, mixture is ground The mass ratio of abrading-ball and water is material: ball: water=1:2:0.6, and Ball-milling Time 5min is uniformly mixed and slurry is made；
(3) by step (1) raw material and additive be mixed to form mixed material, then carry out wet-milling with ball mill, mix It closes uniformly and slurry is made；The mass ratio of mixture, mill ball and water is material: ball: water=1:2:0.6 when ball milling；
(4) slurry is put into baking oven to be dried, the dry 12h at 120 DEG C is dried for the uniformity for guaranteeing slurry Cheng Zhongxu is stirred, and is then crushed in pulverizer, and powder is made, and diameter of particle is 200~300 mesh；
(5) powder is roasted, is raised to 950 DEG C with the rate of 9 DEG C/min, 30min is kept the temperature, then with 3 DEG C/min's Heating rate is raised to 1070 DEG C, keeps the temperature 30min.
Foamed ceramic material obtained, its bulk density is 0.349g/cm after measured3, compression strength 3.798MPa leads Hot coefficient is 0.08W/ (mK).
Embodiment 5
The method for preparing foamed ceramic using titanium-containing blast furnace slag and shale waste residue, using following steps:
(1) using titanium-containing blast furnace slag, shale waste residue, silicon dioxide powder as raw material, titaniferous is high by mass percentage in raw material Clinker accounts for 17.39%, and shale waste residue accounts for 69.57%, and silicon dioxide powder accounts for 13.04%；Borax accounts for total mass of raw material in additive 3%, ball clay accounts for the 5% of total mass of raw material, and foaming agent accounts for the 0.3% of total mass of raw material, and magnesia accounts for total mass of raw material 0.6%, manganese oxide accounts for the 0.5% of total mass of raw material, and sodium metaphosphate accounts for the 0.5% of total mass of raw material；
(2) by step (1) raw material and additive be mixed to form mixed material, then carry out wet-milling with ball mill, mix It closes uniformly and slurry is made；The mass ratio of mixture, mill ball and water is material: ball: water=1:2:0.6 when ball milling；
(3) slurry is put into baking oven to be dried, the dry 12h at 120 DEG C is dried for the uniformity for guaranteeing slurry Cheng Zhongxu is stirred, and is then crushed in pulverizer, and powder is made, and diameter of particle is 200~300 mesh；
(4) it by powder filled into mold, is subsequently placed in middle temperature type resistance furnace, carries out roasting foaming pore-creating；Roasting Temperature schedule in foaming poration process are as follows: furnace temperature is raised to 950 DEG C from the rate of 9 DEG C/min, 30min is kept the temperature, then with 2 DEG C/heating rate of min is raised to 1070 DEG C, keep the temperature 50min.
Foamed ceramic material obtained, its bulk density is 0.235g/cm after measured3, compression strength 2.969MPa leads Hot coefficient is 0.05W/ (mK).
Comparative example
It uses and prepares foamed ceramic using high silicon tailings, steel-making tailings, shale and kaolin as raw material in the prior art, use Detection method in above-described embodiment 1, the bulk density of obtained foamed ceramic are 0.2~0.4g/cm3, compression strength 1.5 ~2.0MPa, thermal coefficient are 0.06~1W/ (mK).
Can be seen that from above-described embodiment foamed ceramic bulk density that method of the invention obtains be 0.216~ 0.398g/cm3, compression strength is 2.231~4.266MPa, and thermal coefficient is 0.04~0.09W/ (mK), and comprehensive performance is wanted Higher than the prior art.
The above described is only a preferred embodiment of the present invention, being not the limitation for doing other forms to the present invention, appoint What those skilled in the art can use the equivalence enforcement that technology contents disclosed above were changed or be modified as equivalent variations Example.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to the above embodiments What simple modification, equivalent variations and remodeling, still falls within the protection scope of technical solution of the present invention.

Claims (8)

1. a kind of method for preparing foamed ceramic using titanium-containing blast furnace slag and shale waste residue, which is characterized in that it includes following step It is rapid:
S1, prepare titanium-containing blast furnace slag, shale waste residue, silicon dioxide powder as raw material；
S2, prepare borax, ball clay, foaming agent, magnesia, manganese oxide and sodium metaphosphate as additive；
S3, whole raw materials and additive are mixed to form mixed material, then carry out wet-milling with ball mill, be uniformly mixed and be made Slurry；
S4, it slurry is put into baking oven is dried, then crushed in pulverizer, powder is made, diameter of particle is 200~300 Mesh；
S5, by powder filled into mold, be subsequently placed in middle temperature type resistance furnace, carry out roasting foaming and Crystallization Process；It It is cooling afterwards to obtain foamed ceramic.
2. the method as described in claim 1, which is characterized in that in step sl, the titanium-containing blast furnace slag is by mass percentage Meter contains SiO228~29%, Al2O314~15%, Fe2O31~2%, CaO 26~27%, Na2O 0.03~0.04%, TiO219~20%, MgO 7~8%, K2O 0.7~0.8%, remaining is impurity.
3. the method as described in claim 1, which is characterized in that in step sl, the shale waste residue is by mass percentage Containing SiO266~67%, Al2O315~16%, Fe2O35~6%, CaO 5~6%, Na2O 0.1~0.2%, TiO2 0.8 ~0.9%, MgO 3~4%, K2O 1~2%, remaining is impurity.
4. the method as described in claim 1, which is characterized in that in step sl, titaniferous by mass percentage in the raw material Blast furnace slag 10~27%, shale waste residue account for 60~79%, and silicon dioxide powder accounts for 12~17%.
5. the method as described in claim 1, which is characterized in that in step s 2, the borax account for total mass of raw material 2~ 4%, ball clay accounts for the 3~5% of total mass of raw material, and foaming agent accounts for the 0.3~0.5% of total mass of raw material, and it is total that magnesia accounts for raw material The 0.3~0.7% of quality, manganese oxide account for the 0.5~1% of total mass of raw material, and sodium metaphosphate accounts for the 0.5~1% of total mass of raw material.
6. the method as described in claim 1, which is characterized in that in step s3, the mixed material when wet-milling, mill ball and The mass ratio of water is material: ball: water=1:1.8~2.4:0.6~1.0.
7. the method as described in claim 1, which is characterized in that in step s 4, the drying is dry at 100~120 DEG C 12~16h.
8. method as described in any of claims 17, which is characterized in that in step s 5, the roasting foaming and crystallization Temperature schedule in the process are as follows: furnace temperature is raised to 850~950 DEG C from room temperature with the rate of 8~10 DEG C/min, keeps the temperature at least 30min, Then 1050~1100 DEG C are raised to the heating rate of 2~4 DEG C/min, keep the temperature 30~60min.
CN201910626115.4A 2019-07-11 2019-07-11 A method of foamed ceramic is prepared using titanium-containing blast furnace slag and shale waste residue Pending CN110256047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910626115.4A CN110256047A (en) 2019-07-11 2019-07-11 A method of foamed ceramic is prepared using titanium-containing blast furnace slag and shale waste residue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910626115.4A CN110256047A (en) 2019-07-11 2019-07-11 A method of foamed ceramic is prepared using titanium-containing blast furnace slag and shale waste residue

Publications (1)

Publication Number Publication Date
CN110256047A true CN110256047A (en) 2019-09-20

Family

ID=67925674

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910626115.4A Pending CN110256047A (en) 2019-07-11 2019-07-11 A method of foamed ceramic is prepared using titanium-containing blast furnace slag and shale waste residue

Country Status (1)

Country Link
CN (1) CN110256047A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111825426A (en) * 2020-07-27 2020-10-27 贵州中建建筑科研设计院有限公司 High-strength porous water permeable brick and preparation method thereof
CN111995361A (en) * 2020-07-31 2020-11-27 东北大学 Method for preparing silicon spar composite material
CN112500197A (en) * 2020-12-14 2021-03-16 沈阳建筑大学 Special material for interface sintering of integrated foamed ceramic insulation board and preparation and application thereof
CN112898045A (en) * 2021-03-31 2021-06-04 成渝钒钛科技有限公司 High-titanium blast furnace slag porous sound-absorbing ceramic and preparation method thereof
CN113999042A (en) * 2021-12-11 2022-02-01 抚顺矿业集团有限责任公司工程技术研究中心 Foamed ceramic prepared from oil shale waste residues and green shale and preparation method thereof
CN116606161A (en) * 2023-05-25 2023-08-18 攀枝花学院 Method for preparing porous ceramic from titanium-containing blast furnace slag and silicon slag

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108424120A (en) * 2018-04-25 2018-08-21 东北大学 A method of preparing foamed ceramic materials for wall using shale waste residue
CN108503371A (en) * 2018-04-25 2018-09-07 东北大学 A method of preparing foamed ceramic material using blast furnace slag and aluminous fly-ash
CN108529887A (en) * 2018-04-02 2018-09-14 四川大学 A kind of preparation method of high intensity, porous sound-absorbing material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108529887A (en) * 2018-04-02 2018-09-14 四川大学 A kind of preparation method of high intensity, porous sound-absorbing material
CN108424120A (en) * 2018-04-25 2018-08-21 东北大学 A method of preparing foamed ceramic materials for wall using shale waste residue
CN108503371A (en) * 2018-04-25 2018-09-07 东北大学 A method of preparing foamed ceramic material using blast furnace slag and aluminous fly-ash

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
连法增: "《工程材料学》", 31 August 2005, 东北大学出版社 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111825426A (en) * 2020-07-27 2020-10-27 贵州中建建筑科研设计院有限公司 High-strength porous water permeable brick and preparation method thereof
CN111995361A (en) * 2020-07-31 2020-11-27 东北大学 Method for preparing silicon spar composite material
CN112500197A (en) * 2020-12-14 2021-03-16 沈阳建筑大学 Special material for interface sintering of integrated foamed ceramic insulation board and preparation and application thereof
CN112500197B (en) * 2020-12-14 2022-06-07 沈阳建筑大学 Special material for interface sintering of integrated foamed ceramic insulation board and preparation and application thereof
CN112898045A (en) * 2021-03-31 2021-06-04 成渝钒钛科技有限公司 High-titanium blast furnace slag porous sound-absorbing ceramic and preparation method thereof
CN113999042A (en) * 2021-12-11 2022-02-01 抚顺矿业集团有限责任公司工程技术研究中心 Foamed ceramic prepared from oil shale waste residues and green shale and preparation method thereof
CN116606161A (en) * 2023-05-25 2023-08-18 攀枝花学院 Method for preparing porous ceramic from titanium-containing blast furnace slag and silicon slag

Similar Documents

Publication Publication Date Title
CN110256047A (en) A method of foamed ceramic is prepared using titanium-containing blast furnace slag and shale waste residue
CN103241955B (en) The method of crystallite foam glass is prepared with high-titanium blast furnace slag and waste glass powder
CN101713235B (en) Forsterite light brick and preparation method thereof
CN102838283B (en) Method for producing foam microcrystal glass by utilizing composite industrial residue and product
Zhao et al. Synthesis of steel slag ceramics: chemical composition and crystalline phases of raw materials
CN103396163B (en) Formula and preparation method of ultralow temperature glaze
CN102838376B (en) Preparation method of light-weight closed-pore ceramic heat insulating board
CN104909734B (en) Rich magnesium forsterite spinel composite brick and preparation method thereof
CN102718513A (en) Aluminum-magnesium refractory castable material and preparation method thereof
CN108191230A (en) A kind of method that coloured foam class ceramic material is prepared using lithium tailings
CN104230170B (en) A kind of preparation method of sintering process foaming micro crystal material product
CN102633511B (en) Aluminum-spinel-magnesia composite refractory as well as preparation method and application thereof
CN108840710A (en) Utilize the method for lithium tailing and steel slag tailing production foamed ceramic building thermal insulation material
CN103708731A (en) Nickel-slag porous microcrystalline material and preparation method thereof
CN104003749B (en) A kind of electrolytic manganese residues closo porous material and foam in place preparation method
CN105417950A (en) Microcrystalline material fluxing nucleating agent and preparation method thereof
CN101792266A (en) Particle-reinforced foam glass and preparation method thereof
CN104557120A (en) Method for preparing foamed ceramic
CN105777158B (en) Siliceous dry material for tundish for steel smelting as well as production method and construction method
CN101665349A (en) Temperature resistant ceramic product
CN102765949B (en) Light-weight cordierite castable and preparation method thereof
CN108424120A (en) A method of preparing foamed ceramic materials for wall using shale waste residue
CN108794050A (en) A kind of low cost height is held one's breath the preparation method of porosity heat-insulating construction material
CN112759363A (en) Foamed ceramic composite additive, foamed ceramic and preparation method thereof
CN104529323A (en) Full-weight slag aggregate heat-resistant concrete prepared by using ordinary silicate cement

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190920