CN106495708A - High refractory brick of a kind of refractoriness under load and preparation method thereof - Google Patents
High refractory brick of a kind of refractoriness under load and preparation method thereof Download PDFInfo
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- CN106495708A CN106495708A CN201610884566.4A CN201610884566A CN106495708A CN 106495708 A CN106495708 A CN 106495708A CN 201610884566 A CN201610884566 A CN 201610884566A CN 106495708 A CN106495708 A CN 106495708A
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- refractory brick
- under load
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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
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
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Abstract
The invention discloses high refractory brick of a kind of refractoriness under load and preparation method thereof, which is made up of the raw material of following weight portion：Enstatite 12 19, fused magnesite 21 28, dawsonite 14 22, high silicon vanadium mine tailing 22 34, boron phosphate 6 12, blast furnace cinder 18 30, aquadag powder 10 15, tungsten silicide 5 10, alumina cement 36 48, silicate cement body refuse 16 28, silicon manganese slag 15 25, polyvinylpyrrolidone 8 14, cane molasses 5 10.The present invention significantly improves the refractoriness under load of refractory brick using raw materials such as fused magnesite, enstatite, dawsonite compatibility aquadag powder, tungsten silicides in the case where brick body refractoriness is not affected.Refractory brick fire resistance of the present invention is good, refractoriness under load, and elevated temperature strength is high, and heat endurance is strong, and easy processing, long service life.
Description
Technical field
The present invention relates to high refractory brick of a kind of refractoriness under load and preparation method thereof, belongs to fire resisting material field.
Background technology
Refractory brick is the refractory material with definite shape and size being fired into refractory clay or other refractory raw materials,
It is resistant to 1580 DEG C -1770 DEG C of high temperature.Divide by process of preparing can be divided into be fired into bricks, unburned brick, fused cast refractories (founding
Brick), refratory insulating brick；Standard size brick, common brick, special shaped brick etc. can be divided into by shape and size.Refractory brick can be used as building
The high temperature construction material of kiln and various Thermal Equipments and structural material, and be amenable at high temperature various physicochemical changes and
Mechanism.
In recent years, domestic refractory brick production technology quickly grows, and occurs in that various, different properties the fire resisting of species on market
Brick.China Patent No. is：200710062457.5 patent of invention disclose a kind of silica heat-proof firebrick, refractory brick of the present invention
By silica fine powder 81-85%, perlite 15-19%, the additional following auxiliary material for accounting for above-mentioned main material gross weight：Iron scale powder 0.45-
0.55%, cement 0.9-1.1%, milk of lime 6.5-7.5%, paper pulp 1.95-2.2% are constituted, and preparation technology is：Silica is thin
Powder, perlite are proportionally added in wet stone roller, are subsequently adding iron scale powder, after cement dry milling 1-2 minute, added and account for main material gross weight
The water of 1.8-2.2%, is subsequently adding milk of lime, rolls 10-15 minutes, is eventually adding paper pulp, rolls 10-15 minutes, goes out to grind, into
Type base.Although existing clay insulating refractory block is solved using refractory brick obtained in above-mentioned raw materials and technique and there is loading change
Easily shrink under shape temperature low and high temperature, the defect such as thermal conductivity is larger, heat insulation effect is bad, but its fire resistance and loading softening temperature
Degree still suffers from larger gap, it is impossible to meet the demand of export market compared with external refractory brick.
Content of the invention
The technical problem to be solved is to provide high refractory brick of a kind of refractoriness under load and preparation method thereof,
To solve the problems, such as that existing refractory brick refractoriness under load is low and refractoriness is low.
In order to solve the above problems, the present invention is adopted the following technical scheme that：
A kind of high refractory brick of refractoriness under load, is made up of the raw material of following weight portion：Enstatite 12-19, electric smelting
Magnesia 21-28, dawsonite 14-22, high silicon vanadium mine tailing 22-34, boron phosphate 6-12, blast furnace cinder 18-30, aquadag powder
10-15, tungsten silicide 5-10, alumina cement 36-48, silicate cement body refuse 16-28, silicon manganese slag 15-25, polyvinylpyrrolidone
8-14, cane molasses 5-10.
A kind of preparation method of the high refractory brick of refractoriness under load, is made up of the following steps：
(1) high silicon vanadium mine tailing, blast furnace cinder, silicate cement body refuse, silicon manganese slag are well mixed, are crushed, cross 50-100 mesh
Sieve, 760-790 DEG C of calcining 3-4h, is cooled to room temperature, and 300-500r/min dry ball milling 30-50min, then according to solid-to-liquid ratio 1：
4-5 by ball milling after powder be added in the sulfuric acid solution that mass fraction is 25%, heating water bath to 55-65 DEG C, heat-insulation soaking
2-3h, stands cooled and filtered, and filter residue is washed with water to neutrality, according to solid-to-liquid ratio 1：3-4 by washing after filter residue be added to matter
Amount fraction is in 20% sodium hydroxide solution, is heated to 75-85 DEG C, heat-insulation soaking 1.5-2.5h, stands cooled and filtered, filter
Liquid be passed through carbon dioxide to pH be 8-9 when, close carbon dioxide, still aging 2-3h is filtered, and residue washing is clean, dries
Dry, 580-630 DEG C of temperature calcining 1-2h is cooled to room temperature, stand-by；
(2) according to mass ratio 1:Raw material obtained in step (1) is mixed by 5-6 with the Alumina gel that solid content is 20%, fully
Stir, add the calgon of the polyvinyl alcohol and 8-14% equivalent to stock quality 12-18%, 600-800r/
Min dry ball milling 8-16min, then vacuum be 2-4Pa, temperature be -60～-90 DEG C under conditions of freeze-drying 30-
40h, then in air atmosphere with the ramp of 6-8 DEG C/min to 720-780 DEG C, it is incubated 5-7h, then the speed with 3-6 DEG C/min
Rate is warming up to 1400-1450 DEG C, is incubated 2-4h, is cooled to room temperature, obtains refractory matter；
(3) enstatite, dawsonite, fused magnesite are well mixed, are crushed, with step (2) excessively after 50-100 mesh sieves
Obtained refractory matter carries out dry-mixed, mixing 5-8min, is subsequently adding appropriate water, and adds remaining material to carry out wet mixing, mixes
4-6min；
(4) will be compressing in compound addition mould obtained in step (3), briquetting pressure is 22-28MPa, takes off
Solarization water curing is carried out after mould, 5-10h is conserved once, conserve 10-15 days, then natural ring maintenance.
Beneficial effects of the present invention：
(1) present invention passes through to extract two from the raw materials such as high silicon vanadium mine tailing, blast furnace cinder, silicate cement body refuse, silicon manganese slag
Silica, then coordinates Alumina gel to carry out freeze-drying and high-temperature calcination, can obtain the fire resisting with mullite as main component
Material, the refractory matter are added in brick, can greatly improve the fire resistance of refractory brick so that refractory brick remains to keep excellent at high temperature
Different combination property, is simultaneously achieved the solid slags such as high silicon vanadium mine tailing, blast furnace cinder, silicate cement body refuse, silicon manganese slag again
Recycling, with important economic benefit and social benefit；
(2) present invention is using raw materials such as fused magnesite, enstatite, dawsonite compatibility aquadag powder, tungsten silicides
The refractoriness under load of refractory brick is significantly improved in the case where brick body refractoriness is not affected.Refractory brick fire resistance of the present invention
Good, refractoriness under load, elevated temperature strength are high, and heat endurance is strong, and easy processing, long service life.
Specific embodiment
A kind of high refractory brick of refractoriness under load, is made up of the raw material of following weight (kg)：Enstatite 16, electric-melting magnesium
Sand 25, dawsonite 18, high silicon vanadium mine tailing 28, boron phosphate 9, blast furnace cinder 22, aquadag powder 13, tungsten silicide 7, high alumina water
Mud 42, silicate cement body refuse 23, silicon manganese slag 20, polyvinylpyrrolidone 11, cane molasses 8.
A kind of preparation method of the high refractory brick of refractoriness under load, is made up of the following steps：
(1) high silicon vanadium mine tailing, blast furnace cinder, silicate cement body refuse, silicon manganese slag are well mixed, are crushed, cross 80 mesh sieves,
770 DEG C of calcining 3.5h, are cooled to room temperature, and 400r/min dry ball milling 40min, then according to solid-to-liquid ratio 1：5 by ball milling after powder
End is added in the sulfuric acid solution that mass fraction is 25%, and to 60 DEG C, heat-insulation soaking 2.5h stands mistake after cooling to heating water bath
Filter, filter residue is washed with water to neutrality, according to solid-to-liquid ratio 1：4 by washing after filter residue be added to the hydroxide that mass fraction is 20%
In sodium solution, 80 DEG C are heated to, heat-insulation soaking 2h stands cooled and filtered, and it is 8.5 that filtrate is passed through carbon dioxide to pH
When, carbon dioxide is closed, still aging 2.5h is filtered, and residue washing is clean, dries, 600 DEG C of temperature calcining 1.5h, is cooled to room
Temperature, stand-by；
(2) according to mass ratio 1:Raw material obtained in step (1) is mixed by 6 with the Alumina gel that solid content is 20%, is fully stirred
Mix uniform, add polyvinyl alcohol equivalent to stock quality 16% and 12% calgon, 700r/min dry ball millings
12min, then vacuum be 3Pa, temperature be -70 DEG C under conditions of freeze-drying 35h, then in air atmosphere with 7 DEG C/
The ramp of min is incubated 6h to 750 DEG C, then with the ramp of 5 DEG C/min to 1420 DEG C, is incubated 3h, is cooled to room temperature,
Obtain refractory matter；
(3) enstatite, dawsonite, fused magnesite are well mixed, are crushed, be obtained with step (2) after crossing 70 mesh sieves
Refractory matter carry out dry-mixed, mix 7min, be subsequently adding appropriate water, and add remaining material to carry out wet mixing, mix 5min；
(4) will be compressing in compound addition mould obtained in step (3), briquetting pressure is 25MPa, after the demoulding
Solarization water curing is carried out, 8h is conserved once, conserved 12 days, then natural ring maintenance.
The performance test results of refractory brick obtained in above-described embodiment are as follows compared with external refractory brick performance parameter
Shown in table：
| External refractory brick | The refractory brick of above-described embodiment production | |
| Refractoriness, DEG C | 1820 | 1850 |
| Refractoriness under load T0.6, DEG C | 1640 | 1695 |
Claims (2)
1. the high refractory brick of a kind of refractoriness under load, it is characterised in that be made up of the raw material of following weight portion：Enstatite
12-19, fused magnesite 21-28, dawsonite 14-22, high silicon vanadium mine tailing 22-34, boron phosphate 6-12, blast furnace cinder 18-30, glue
Body graphite powder 10-15, tungsten silicide 5-10, alumina cement 36-48, silicate cement body refuse 16-28, silicon manganese slag 15-25, polyethylene
Pyrrolidones 8-14, cane molasses 5-10.
2. the preparation method of the high refractory brick of a kind of refractoriness under load as claimed in claim 1, it is characterised in that by following
Step is constituted：
（1）High silicon vanadium mine tailing, blast furnace cinder, silicate cement body refuse, silicon manganese slag are well mixed, are crushed, cross 50-100 mesh sieves,
760-790 DEG C of calcining 3-4h, is cooled to room temperature, and 300-500r/min dry ball milling 30-50min, then according to solid-to-liquid ratio 1：4-5
Powder after by ball milling is added in the sulfuric acid solution that mass fraction is 25%, heating water bath to 55-65 DEG C, heat-insulation soaking 2-3h,
Cooled and filtered is stood, filter residue is washed with water to neutrality, according to solid-to-liquid ratio 1：3-4 by washing after filter residue be added to mass fraction
In for 20% sodium hydroxide solution, 75-85 DEG C is heated to, heat-insulation soaking 1.5-2.5h stands cooled and filtered, and filtrate is passed through
Carbon dioxide to pH be 8-9 when, close carbon dioxide, still aging 2-3h is filtered, and residue washing is clean, dries, 580-
630 DEG C of temperature calcining 1-2h, are cooled to room temperature, stand-by；
（2）According to mass ratio 1:5-6 is by step（1）Obtained raw material is mixed with the Alumina gel that solid content is 20%, is sufficiently stirred for
Even, add the calgon of the polyvinyl alcohol and 8-14% equivalent to stock quality 12-18%, 600-800r/min dry method balls
Mill 8-16min, then vacuum be 2-4Pa, temperature be freeze-drying 30-40h under conditions of -60 ~ -90 DEG C, then in air
With the ramp of 6-8 DEG C/min to 720-780 DEG C under atmosphere, insulation 5-7h, then with the ramp of 3-6 DEG C/min extremely
1400-1450 DEG C, 2-4h is incubated, room temperature is cooled to, is obtained refractory matter；
（3）Enstatite, dawsonite, fused magnesite are well mixed, are crushed, with step excessively after 50-100 mesh sieves（2）It is obtained
Refractory matter carry out dry-mixed, mix 5-8min, be subsequently adding appropriate water, and add remaining material to carry out wet mixing, mix 4-
6min；
（4）By step（3）Compressing in obtained compound addition mould, briquetting pressure is 22-28MPa, after the demoulding
Solarization water curing is carried out, 5-10h is conserved once, conserved 10-15 days, then natural ring maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884566.4A CN106495708A (en) | 2016-10-10 | 2016-10-10 | High refractory brick of a kind of refractoriness under load and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884566.4A CN106495708A (en) | 2016-10-10 | 2016-10-10 | High refractory brick of a kind of refractoriness under load and preparation method thereof |
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| CN106495708A true CN106495708A (en) | 2017-03-15 |
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| CN201610884566.4A Pending CN106495708A (en) | 2016-10-10 | 2016-10-10 | High refractory brick of a kind of refractoriness under load and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107586139A (en) * | 2017-08-24 | 2018-01-16 | 南通德诺尔石墨设备有限公司 | The preparation method of Novel graphite refractory brick |
| CN107586140A (en) * | 2017-08-24 | 2018-01-16 | 南通德诺尔石墨设备有限公司 | The preparation method of Novel graphite refractory brick |
| CN110078478A (en) * | 2019-04-30 | 2019-08-02 | 浙江攀盛冶金材料有限公司 | A kind of novel modified high attachment continuous casting production dry materials |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037345A (en) * | 2007-02-15 | 2007-09-19 | 中国科学院上海硅酸盐研究所 | Method for preparing mullite porous ceramic by gel refrigeration drying process |
| 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 |
| CN105950822A (en) * | 2016-03-07 | 2016-09-21 | 安徽云天冶金科技股份有限公司 | High-fire-proof slag-stopping ball used for converter steelmaking and preparation method thereof |
| 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 |
-
2016
- 2016-10-10 CN CN201610884566.4A patent/CN106495708A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037345A (en) * | 2007-02-15 | 2007-09-19 | 中国科学院上海硅酸盐研究所 | Method for preparing mullite porous ceramic by gel refrigeration drying process |
| 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 |
| CN105950822A (en) * | 2016-03-07 | 2016-09-21 | 安徽云天冶金科技股份有限公司 | High-fire-proof slag-stopping ball used for converter steelmaking and preparation method thereof |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107586139A (en) * | 2017-08-24 | 2018-01-16 | 南通德诺尔石墨设备有限公司 | The preparation method of Novel graphite refractory brick |
| CN107586140A (en) * | 2017-08-24 | 2018-01-16 | 南通德诺尔石墨设备有限公司 | The preparation method of Novel graphite refractory brick |
| CN110078478A (en) * | 2019-04-30 | 2019-08-02 | 浙江攀盛冶金材料有限公司 | A kind of novel modified high attachment continuous casting production dry materials |
| CN110078478B (en) * | 2019-04-30 | 2022-02-08 | 浙江攀盛冶金材料有限公司 | Modified high-adhesion dry material for continuous casting tundish |
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