CN106673676A - Anti-aging and anti-cracking refractory brick and preparation method thereof - Google Patents

Anti-aging and anti-cracking refractory brick and preparation method thereof Download PDF

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CN106673676A
CN106673676A CN201611175830.3A CN201611175830A CN106673676A CN 106673676 A CN106673676 A CN 106673676A CN 201611175830 A CN201611175830 A CN 201611175830A CN 106673676 A CN106673676 A CN 106673676A
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parts
refractory brick
incubated
cooled
cracking
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晋元龙
陈德全
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Ma'an Mountain Bao Long Building Material Co Ltd
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Ma'an Mountain Bao Long Building Material Co Ltd
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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
    • C04B35/106—Refractories from grain sized mixtures containing zirconium oxide or zircon (ZrSiO4)
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    • 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
    • C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
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    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • 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
    • C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
    • C04B2235/3445—Magnesium silicates, 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
    • 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
    • C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
    • C04B2235/3454—Calcium silicates, e.g. wollastonite
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    • 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
    • C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
    • C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
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    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
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    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
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    • 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
    • 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
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Abstract

The invention discloses an anti-aging and anti-cracking refractory brick and a preparation method thereof. The refractory brick is prepared from raw materials in parts by weight as follows: 20-30 parts of zircon, 16-28 parts of wollastonite, 11-19 parts of diopside, 22-34 parts of diaspore, 15-25 parts of white fused alumina, 8-16 parts of analcime, 36-44 parts of bauxite, 27-39 parts of municipal sludge, 5-10 parts of flocculent lignin fiber, 14-22 parts of stainless steel staple fiber, 10-15 parts of lime plaster with hemp cuts, 21-33 parts of tephra and 7-14 parts of thermal crack waste rubber. Due to addition of flocculent lignin fiber, stainless steel staple fiber and lime plaster with hemp cuts in the raw materials, the mechanical strength and toughness of the refractory brick can be improved, the aging cracking resistance of the refractory brick can be improved, cracking of the refractory brick is prevented; due to addition of diaspore, analcime and white fused alumina, the fire resistance and thermal shock resistance of the refractory brick can be improved significantly. The prepared refractory brick has excellent aging cracking resistance, high refractoriness and good thermal shock resistance stability and is durable.

Description

A kind of aging resistance cracking refractory brick and preparation method thereof
Technical field
The present invention relates to a kind of aging resistance cracking refractory brick and preparation method thereof, belongs to fire resisting material field.
Background technology
Refractory brick is a kind of construction material brick class, its attribute " fire resisting " as its name.It is with refractory clay or The refractory material that other refractory raw materials are fired into, can at high temperature be amenable to various physicochemical change and mechanism.It is resistance to Firebrick is not common in our life, but occurs in some live closely bound up building with us, such as house Building, kiln building, Thermal Equipment etc..
Patent No.：201510494613.X patent of invention disclose a kind of production of utilization gangue foamed heat insulating it is resistance to Firebrick and preparation method thereof, its raw material composition is 40~60 parts of gangue, 30~50 parts of bauxite gangue, powder by weight ratio 2~15 parts of coal ash, 0~15 part of silica sand, 0~1 part of lignosulfite.One kind that the invention is provided is main using gangue Foamed heat insulating refractory brick of raw material production and preparation method thereof, although solve light-weight refractory insulating brick on domestic market resistance to Fiery degree is low, molding is poor, the problem of low intensity and high cost, but with science and technology fast-developing and economic level not It is disconnected to improve, the aging resistance cracking performance of refractory brick is put forward higher requirement, a kind of aging resistance cracking performance is needed on market More excellent refractory brick.
The content of the invention
Present invention aim at providing a kind of aging resistance cracking refractory brick and preparation method thereof.
In order to realize upper purpose, the present invention is adopted the following technical scheme that：
A kind of aging resistance cracking refractory brick, is made up of the raw material of following weight portion：Zircon 20-30, wollastonite 16-28, saturating brightness Stone 11-19, diaspore 22-34, white fused alumina 15-25, analcime 8-16, bauxite 36-44, municipal sludge 27-39, cotton-shaped wood Quality fiber 5-10, stainless steel short fiber 14-22, hemp-fibred plaster 10-15, tephre 21-33, thermal cracking scrap rubber 7-14.
A kind of preparation method of aging resistance cracking refractory brick, is made up of the following steps：
（1）By zircon, wollastonite, diopside mix homogeneously, crush, cross 100-150 mesh sieves, add equivalent to mixed-powder matter The sodium carbonate of amount 30-40% and the sodium nitrate of 25-35%, 500-1000r/min dry ball milling 15-25min, then in 910-940 2-4h is calcined at a temperature of DEG C, room temperature is cooled to；
（2）By diaspore, analcime mix homogeneously, crush, cross 50-100 mesh sieves, add white fused alumina and step（1）After calcining Powder, mix homogeneously adds the Sodium Chloride of sodium sulfate equivalent to mixed-powder quality 40-50% and 20-30%, 800- 1200r/min dry ball milling 10-20min, then the microwave heating 2-3h under the power of 500-700W, then 800-1000W's Microwave heating 2-3h under power, is cooled to room temperature, clean with distilled water wash, is dried；
（3）By bauxite, municipal sludge, tephre mix homogeneously, crush, cross 80-120 mesh sieves, be subsequently adding appropriate water, Stir so that the moisture control of compound adds step in 30-40%（2）Obtained powder and cotton-shaped lignin The raw materials such as fiber, stainless steel short fiber, hemp-fibred plaster, thermal cracking scrap rubber, stir；
（4）By step（3）Obtained wet feed is added to compressing in brickmaking machine, and briquetting pressure is 15-20MPa；Then will be into Wet base natural curing 24-48h after type, then be dried to moisture content≤3% at a temperature of 90-110 DEG C；
（5）By step（4）Dry adobe, to 280-320 DEG C, is incubated 7-9h with the ramp of 2-4 DEG C/min, then with 5-7 DEG C/ramp of min to 790-830 DEG C, be incubated 5-8h, then with the ramp of 4-6 DEG C/min to 1360-1420 DEG C, protect Warm 3-6h, is then cooled to 1150-1200 DEG C with the speed of 3-5 DEG C/min, is incubated 4-7h, then is dropped with the speed of 6-8 DEG C/min Temperature is incubated 6-8h to 340-380 DEG C, is cooled to room temperature.
Beneficial effects of the present invention：
（1）The present invention zircon, wollastonite, diopside are calcined under sodium carbonate and the fused salt of sodium nitrate first, then again with Diaspore, analcime mixing, the composite granule that microwave calcination is obtained under the fused salt of sodium sulfate and Sodium Chloride has excellent Fire resistance, adds in brick as raw material, can notable refractory brick refractoriness；
（2）The addition of cotton-shaped lignin fibre, stainless steel short fiber, hemp-fibred plaster in raw material of the present invention, not only can improve fire resisting The mechanical strength and toughness of brick, can also improve the aging resistance cracking behavior of refractory brick, prevent refractory brick from ftractureing.It is of the invention obtained Refractory brick aging resistance cracking behavior is excellent, and refractoriness is high, and heat-resistant knocking stability is good, durable in use.
Specific embodiment
A kind of aging resistance cracking refractory brick, by following weight（kg）Raw material make：Zircon 25, wollastonite 22, saturating brightness Stone 15, diaspore 27, white fused alumina 20, analcime 12, bauxite 40, municipal sludge 33, cotton-shaped lignin fibre 8, rustless steel Chopped fiber 18, hemp-fibred plaster 12, tephre 27, thermal cracking scrap rubber 11.
A kind of preparation method of aging resistance cracking refractory brick, is made up of the following steps：
（1）By zircon, wollastonite, diopside mix homogeneously, crush, cross 120 mesh sieves, add equivalent to mixed-powder quality 35% sodium carbonate and 30% sodium nitrate, 800r/min dry ball milling 20min, then calcine 3h at a temperature of 920 DEG C, cooling To room temperature；
（2）By diaspore, analcime mix homogeneously, crush, cross 80 mesh sieves, add white fused alumina and step（1）Powder after calcining End, mix homogeneously adds the sodium sulfate and 25% Sodium Chloride equivalent to mixed-powder quality 45%, 1000r/min dry method balls Mill 15min, then the microwave heating 2.5h under the power of 600W, then the microwave heating 2h under the power of 900W, are cooled to room temperature, It is clean with distilled water wash, it is dried；
（3）By bauxite, municipal sludge, tephre mix homogeneously, crush, cross 100 mesh sieves, be subsequently adding appropriate water, stir Mix uniform so that the moisture control of compound adds step 35%（2）Obtained powder and cotton-shaped lignin fibre, The raw materials such as stainless steel short fiber, hemp-fibred plaster, thermal cracking scrap rubber, stir；
（4）By step（3）Obtained wet feed is added to compressing in brickmaking machine, and briquetting pressure is 18MPa；Then by after molding Wet base natural curing 36h, then at a temperature of 100 DEG C be dried to moisture content≤3%；
（5）By step（4）Dry adobe, to 300 DEG C, is incubated 8h with the ramp of 3 DEG C/min, then with the speed of 6 DEG C/min 810 DEG C are warming up to, 6h is incubated, then with the ramp of 5 DEG C/min to 1390 DEG C, are incubated 5h, then dropped with the speed of 4 DEG C/min Temperature is incubated 6h to 1180 DEG C, then is cooled to 360 DEG C with the speed of 7 DEG C/min, is incubated 7h, is cooled to room temperature.
The main performance testing result of refractory brick obtained in above-described embodiment is as shown in the table：
Project Unit Testing result
Refractoriness ℃ 1830
Compressive resistance MPa 79
Rupture strength MPa 23
Refractoriness under load（T0.6） ℃ 1690
Thermal shock resistance（1100 DEG C, water-cooled） It is secondary 25
Splitting resistance（Steam pressure 500KPa, 300 DEG C of vapor (steam) temperature, time 48h） — Flawless

Claims (2)

1. a kind of aging resistance ftractures refractory brick, it is characterised in that be made up of the raw material of following weight portion：Zircon 20-30, silicon ash Stone 16-28, diopside 11-19, diaspore 22-34, white fused alumina 15-25, analcime 8-16, bauxite 36-44, municipal sludge 27-39, cotton-shaped lignin fibre 5-10, stainless steel short fiber 14-22, hemp-fibred plaster 10-15, tephre 21-33, thermal cracking are given up Rubber 7-14.
2. a kind of aging resistance as claimed in claim 1 ftractures the preparation method of refractory brick, it is characterised in that by the following steps group Into：
（1）By zircon, wollastonite, diopside mix homogeneously, crush, cross 100-150 mesh sieves, add equivalent to mixed-powder matter The sodium carbonate of amount 30-40% and the sodium nitrate of 25-35%, 500-1000r/min dry ball milling 15-25min, then in 910-940 2-4h is calcined at a temperature of DEG C, room temperature is cooled to；
（2）By diaspore, analcime mix homogeneously, crush, cross 50-100 mesh sieves, add white fused alumina and step（1）After calcining Powder, mix homogeneously adds the Sodium Chloride of sodium sulfate equivalent to mixed-powder quality 40-50% and 20-30%, 800- 1200r/min dry ball milling 10-20min, then the microwave heating 2-3h under the power of 500-700W, then 800-1000W's Microwave heating 2-3h under power, is cooled to room temperature, clean with distilled water wash, is dried；
（3）By bauxite, municipal sludge, tephre mix homogeneously, crush, cross 80-120 mesh sieves, be subsequently adding appropriate water, Stir so that the moisture control of compound adds step in 30-40%（2）Obtained powder and cotton-shaped lignin The raw materials such as fiber, stainless steel short fiber, hemp-fibred plaster, thermal cracking scrap rubber, stir；
（4）By step（3）Obtained wet feed is added to compressing in brickmaking machine, and briquetting pressure is 15-20MPa；Then will be into Wet base natural curing 24-48h after type, then be dried to moisture content≤3% at a temperature of 90-110 DEG C；
（5）By step（4）Dry adobe, to 280-320 DEG C, is incubated 7-9h with the ramp of 2-4 DEG C/min, then with 5-7 DEG C/ramp of min to 790-830 DEG C, be incubated 5-8h, then with the ramp of 4-6 DEG C/min to 1360-1420 DEG C, protect Warm 3-6h, is then cooled to 1150-1200 DEG C with the speed of 3-5 DEG C/min, is incubated 4-7h, then is dropped with the speed of 6-8 DEG C/min Temperature is incubated 6-8h to 340-380 DEG C, is cooled to room temperature.
CN201611175830.3A 2016-12-19 2016-12-19 Anti-aging and anti-cracking refractory brick and preparation method thereof Pending CN106673676A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109180146A (en) * 2018-09-18 2019-01-11 明光瑞尔非金属材料有限公司 A kind of anticracking refractory brick of environmental protection and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102211164A (en) * 2011-05-13 2011-10-12 无锡德乾能源设备有限公司 Application of refractory brick in casting field
CN105967696A (en) * 2016-04-06 2016-09-28 安徽宏发节能设备有限公司 Fireproof fired clay hollow brick and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102211164A (en) * 2011-05-13 2011-10-12 无锡德乾能源设备有限公司 Application of refractory brick in casting field
CN105967696A (en) * 2016-04-06 2016-09-28 安徽宏发节能设备有限公司 Fireproof fired clay hollow brick and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
丁军等: "熔盐介质中制备镁橄榄石轻质材料的机理", 《硅酸盐通报》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109180146A (en) * 2018-09-18 2019-01-11 明光瑞尔非金属材料有限公司 A kind of anticracking refractory brick of environmental protection and preparation method thereof

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Application publication date: 20170517