CN106187241A - Low creep high RUL refractory brick and its preparation method and application - Google Patents
Low creep high RUL refractory brick and its preparation method and application Download PDFInfo
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- CN106187241A CN106187241A CN201610577581.4A CN201610577581A CN106187241A CN 106187241 A CN106187241 A CN 106187241A CN 201610577581 A CN201610577581 A CN 201610577581A CN 106187241 A CN106187241 A CN 106187241A
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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
- 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
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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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
- 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
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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
- 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
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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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
- 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
Abstract
The present invention provides a kind of low creep high RUL refractory brick, including major ingredient and additive, described major ingredient includes the raw material of following mass percent: flint clay bulky grain 20%～40%, the little granule of flint clay 20%～35%, andalusite fine powder 15%～25% and bonding clay fine powder 5%～15%, bauxite micropowder 5%～15%；The quality of described additive is the 4.5%～5.5% of described major ingredient quality.The present invention also provides for the preparation method and application of a kind of above-mentioned low creep high RUL refractory brick.The collocation of described low creep high RUL refractory brick composition rationally and has good thermal shock resistance, preferable heat stability and higher refractoriness under load, thus improves the carbon baking furnace service life applying described low creep high RUL laying fireproof bricks flue wall.
Description
Technical field
The invention belongs to technical field of refractory materials, specifically, relate to a kind of low creep high RUL refractory brick and
Preparation method and application.
Background technology
In modern carbon element industry, producing anode block with roaster the most universal, the main of carbon baking furnace is appointed
Business is roasting electrolytic aluminum anode carbon block.The baking furnace flame path wall of prior art is built by laying bricks or stones by clay brick and is formed, and fuel is in quirk
Burn, and transferred heat to the anode closing in hopper by high RUL high RUL soft andalusite composite fire brick
Carbon block, anode block roasting in the atmosphere not contacting flame.So, refractory material is long except to stand in anode-baking furnace
Outside the high temperature of phase, high pressure, still suffering from periodic variations in temperature, therefore, the requirement to refractory material is that high temperature creep rate is low,
Refractoriness under load thermal shock resistance high, reasonable.
And on the market that China is current, although Refractory material for carbon furnace produces the most universal, but, no matter
Be fireclay refractory or high alumina refractories or general creep refractory material all to there is load softening point the highest, hot
The shortcomings such as shake poor stability, long-time use creep rate are big, can cause the appearance deformation that flue wall is too early, damage, anode block
Production is greatly affected.
In order to solve with present on problem, people are seeking a kind of preferably technical solution always.
Summary of the invention
It is an object of the invention to for the deficiencies in the prior art, thus provide a kind of and there is higher thermal shock resistance, higher loading
Softening temperature and the low creep high RUL refractory brick of preferable heat stability.
To achieve these goals, the technical solution adopted in the present invention is: a kind of low creep high RUL refractory brick, including
Major ingredient and additive, described major ingredient includes the raw material of following mass percent: little of flint clay bulky grain 20%～40%, flint clay
Grain 20%～35%, andalusite fine powder 15%～25% and bonding clay fine powder 5%～15%, bauxite micropowder 5%～15%；Institute
State quality is described major ingredient quality the 4.5%～5.5% of additive.
Based on above-mentioned, described major ingredient includes the raw material of following mass percent: little of flint clay bulky grain 31%, flint clay
Grain 28%, andalusite fine powder 20%, bonding clay fine powder 11% and bauxite micropowder 10%.
Based on above-mentioned, the oarse-grained granularity of described flint clay is 1 mm～3 mm, and the short grained granularity of described flint clay is little
In 1 mm.
Based on above-mentioned, the granularity of described andalusite fine powder is less than less than 0.074 mm, the granularity of described bonding clay fine powder
0.074 mm。
Based on above-mentioned, described bauxite powder size is less than 0.043 mm.
Based on above-mentioned, described additive is pulp-water.
Wherein, described major ingredient includes aggregate and fines, and described low creep high RUL refractory brick is big with the flint clay in raw material
The little granule of granule, flint clay is aggregate, with andalusite fine powder, bonding clay fine powder and bauxite micropowder as fines, passes through
The little granule of described flint clay mixes.
The present invention also provides for the preparation method of a kind of low creep high RUL refractory brick, comprises the following steps:
(1) calculate according to the raw material of above-mentioned mass percent, flint clay bulky grain, the little granule of flint clay and additive are mixed
Grind and prepare prefabricated pug；Then in described prefabricated pug, add andalusite fine powder, bauxite micropowder, bonding clay fine powder
And carry out mixed grind and prepare mixed grind pug；
(2) described mixed grind pug is pressed into adobe, prepares described low creep high RUL after the calcining of described adobe drying fire-resistant
Brick.
Based on above-mentioned, described step (2) including: described mixed grind pug is pressed into adobe, by described adobe in temperature is
24 hours～36 hours it are dried under the conditions of 60 DEG C～130 DEG C；Then by dried described adobe at 1450 DEG C～1480
Carry out at a temperature of DEG C calcining 10 hours～24 hours, thus prepare described low creep high RUL refractory brick.
The present invention also provides for the application of a kind of above-mentioned low creep high RUL refractory brick, and described low creep high RUL refractory brick should
In carbon baking furnace.
In low creep high RUL refractory brick raw material provided by the present invention, the performance effect of each composition is as follows:
Bauxite: refer to bauxite mineral material after calcining, it is mainly composed of diaspore and high alumina Silicon stone, tool
There is higher flashback performance, be commonly used to prepare various high-alumina brick, be that metallurgical industry is widely used fire-resistant or anti-with other industry
Rotten material.
Andalusite: crystal belongs to the nesosilicate mineral of orthogonal (tiltedly side) crystallographic system, and andalusite is at adobe calcination process
Middle irreversible crystal transformation can be occurred to be formed there is the mullite of good mullite network, thus make it have 1800 DEG C with
On fire resistance, and resistance to suddenly cold and hot, mechanical strength are big, heat shock resistance power and resistance to slag is strong, loading inversion point is high, and have
High chemical stability and extremely strong resistance to chemical corrosion, so that the described low creep high RUL refractory brick of preparation has
High RUL creep soft, low, high thermal shock stability.
Flint clay: also known as one-level hard paste grog, is the multiple mixture containing aluminosilicate, and main chemical compositions is
Al2O3And SiO2, with a small amount of Fe2O3Na with trace2O、K2O, has volume stability, intensity after high-temperature calcination and greatly and absorbs water
The characteristics such as rate is little, its refractoriness is up to more than 1750 DEG C, so that the described low creep high RUL refractory brick of preparation has relatively
High thermal shock resistance and preferable heat resistance.
Bonding clay: predominantly kaolinite, silicon oxide and aluminium oxide, Se Bai and fire-resistant, for preparing the primary raw material of china clay,
It it is a kind of high plasticity clay.The performance of bonding clay is affected by factors, with mineralogical composition, mineralogical property, crystallizable mineral
Feature, the granular size of mineral, electrolyte type, the Law of Cause of Formation of clay and processing technique etc. are because have close relationship.This
Case is chosen alumina content be 34%～37%, ferrum oxide less than 1.5% high-quality bonding clay, utilize its preferable caking property
With plasticity makes bonding between each granule and micropowder closely and make low creep high RUL firebrick billet mouldability higher.
Hinge structure of the present invention has prominent substantive distinguishing features and significantly progress, and specifically, the present invention will
Varigrained flint clay, andalusite, bauxite, bonding clay and additive mix so that the adobe of preparation is each
The collocation of individual site component proportioning is consistent, it is ensured that the concordance of low creep high RUL refractory brick each position performance of calcining gained,
Simultaneously containing the granularity material that a large amount of corner angle are prominent in raw material, increase critical granularity, provide for low creep high RUL refractory brick
Firm framing structure makes it in use be not likely to produce deformation.Meanwhile, flint clay, andalusite, bauxite it are utilized respectively
Grog, the resistance to burning characteristic of bonding clay and preferably mouldability and andalusite calcination process formed have heat shock resistance power,
The mullite that resistance to slag is strong, loading inversion point is high so that it is soft, low compacted that the low creep high RUL refractory brick of preparation has high RUL
Change, high thermal shock stability, thus improve and apply the carbon baking furnace of described low creep high RUL laying fireproof bricks flue wall to make
Use the life-span.And the raw material that the method uses is easy to get, composition collocation is reasonable, preparation process is simple.
Detailed description of the invention
Below by detailed description of the invention, technical scheme is described in further detail.
Embodiment 1
The present embodiment provides a kind of low creep high RUL refractory brick, and it includes aggregate, fines and pulp-water, wherein, described paper pulp
The quality of water is described aggregate and the 4.5% of described fines gross mass；Described aggregate and described fines include following mass percent
Raw material: the little granule of flint clay bulky grain 31%, flint clay 28%, andalusite fine powder 20%, bonding clay fine powder 11% and bauxite
Grog micropowder 10%.
Wherein, the oarse-grained granularity of described flint clay is 1 mm～3 mm, the short grained granularity of described flint clay are less than 1
Mm, the granularity of described andalusite fine powder are less than 0.074 mm, the granularity of described bonding clay fine powder is less than 0.074 mm, described aluminum
Bauxite clinker powder size is less than 0.043 mm.Chemical composition in each raw material is as shown in table 1.
Table 1, each raw material main chemical compositions
| Raw material | Al2O3 | Fe2O3 | K2O+NaO | Loss on ignition |
| Andalusite fine powder | 55%～58% | ≤1.1% | ≤1.0% | -- |
| Bauxite micropowder | ≥80% | ≤1.5% | ≤0.6% | -- |
| Bonding clay fine powder | 34%～37% | ≤1.5% | ≤0.5% | 11%～13% |
| Flint clay bulky grain, little granule | ≥45% | ≤1.0% | ≤1.0% | -- |
The present embodiment also provides for the preparation method of a kind of described low creep high RUL refractory brick, and concrete preparation process includes:
Respectively flint clay, andalusite, bauxite and bonding clay are pulverized, prepare the raw material of above-mentioned granularity.
The described flint clay bulky grain of above-mentioned mass percent, the little granule of described flint clay are mixed with described pulp-water
Grind 5 minutes and prepare prefabricated pug；Then in described prefabricated pug, add the andalusite fine powder of described mass percent, bauxite
Grog micropowder and bonding clay fine powder also carry out mixed grind 20 minutes, prepare mixed grind pug.
The pressure tonnage brickmaking machine more than 315 tons is used described mixed grind pug to be pressed into adobe, then by described adobe
Putting into and be dried in tunnel type drying hole 24 hours, the inlet temperature wherein controlling described tunnel type drying hole is 60 DEG C, goes out
Mouth temperature is 130 DEG C；It is little by dried described adobe loading fuel gas tunnel kiln carries out calcining 10 at a temperature of 1480 DEG C
Time, thus prepare described low creep high RUL refractory brick.After testing, the described low creep high RUL refractory brick that the present embodiment prepares
Density is 2.24 g/cm3。
Low creep high RUL refractory brick prepared by the preparation method provided by the present embodiment, can be applicable to build carbon baking by laying bricks or stones
Stove flue wall.
Embodiment 2
The present embodiment provides a kind of low creep high RUL refractory brick, and concrete material composition is roughly the same with embodiment 1, difference
Being, the quality of pulp-water described in the present embodiment is described aggregate and the 5% of described fines gross mass, described aggregate and described
Fines includes the raw material of following mass percent: the little granule of flint clay bulky grain 30%, flint clay 29%, andalusite fine powder 15%, knot
Close well as clay fines 15% and bauxite micropowder 11%.
The preparation method of the low creep high RUL refractory brick described in the present embodiment and the substantially phase of the preparation method in embodiment 1
With, difference is: described mixed grind pug is pressed into adobe, then described adobe is put in tunnel type drying hole and carries out
Be dried 24 hours, wherein control the inlet temperature of described tunnel type drying hole be 60 DEG C, outlet temperature be 130 DEG C；Will be dried
Described adobe load in fuel gas tunnel kiln and carry out calcining at a temperature of 1470 DEG C 10 hours, thus it is high to prepare described low creep
The soft refractory brick of lotus.After testing, the described low creep high RUL refractory brick density that the present embodiment prepares is 2.29 g/cm3。
Low creep high RUL refractory brick prepared by the preparation method provided by the present embodiment, can be applicable to build carbon baking by laying bricks or stones
Stove flue wall.
Embodiment 3
The present embodiment provides a kind of low creep high RUL refractory brick, and concrete material composition is roughly the same with embodiment 1, difference
Being, in the present embodiment, the quality of described pulp-water is described aggregate and the 5.5% of described fines gross mass, described aggregate and institute
State fines and include the raw material of following mass percent: the little granule of flint clay bulky grain 32%, flint clay 27%, andalusite fine powder 18%,
Bonding clay fine powder 15% and bauxite micropowder 8%.
The preparation method of the low creep high RUL refractory brick described in the present embodiment and the substantially phase of the preparation method in embodiment 1
With, difference is: described mixed grind pug is pressed into adobe, then described adobe is put in tunnel type drying hole and carries out
Be dried 24 hours, wherein control the inlet temperature of described tunnel type drying hole be 60 DEG C, outlet temperature be 130 DEG C；Then will be dry
Adobe after dry carries out calcining 20 hours at a temperature of 1460 DEG C, thus prepares described low creep high RUL refractory brick.Through inspection
Surveying, the described low creep high RUL refractory brick density that the present embodiment prepares is 2.23 g/cm3。
Low creep high RUL refractory brick prepared by the preparation method provided by the present embodiment, can be applicable to build carbon baking by laying bricks or stones
Stove flue wall.
Low creep high RUL refractory brick performance detects: respectively in the low creep high RUL refractory brick to embodiment 1～3 preparation
Al2O3、Fe2O3Content, apparent porosity, cold crushing strength and 1350 DEG C of high temperature break resistant intensity performances detect, and
0.2MPa pressure, 1280 DEG C of calcinings creep rate of 25 hours detect, and testing result is as shown in table 2.
Table 2, low creep high RUL refractory brick performance detect
As can be seen from the above table: the softening point of the low creep high RUL refractory brick that embodiment 1～3 provides more than 1440 DEG C, often
Temperature compressive resistance more than 59MPa, creep rate absolute value less than 0.4%, apparent porosity between 17%～18%, coefficient of thermal expansion little
In 0.6%, the most described low creep high RUL refractory brick property indices meets GB/T3994-2013 set quota, described
Low creep high RUL refractory brick has the high and low creep of load softening temperature, the performance of highly heatproof and shockproof, can apply to build carbon element roasting by laying bricks or stones
Burn stove flue wall and carry out baked for producing anode block.
Finally should be noted that: above example is only in order to illustrate that technical scheme is not intended to limit；To the greatest extent
The present invention has been described in detail by pipe with reference to preferred embodiment, and those of ordinary skill in the field are it is understood that still
The detailed description of the invention of the present invention can be modified or portion of techniques feature is carried out equivalent；Without deviating from this
The spirit of bright technical scheme, it all should be contained in the middle of the technical scheme scope that the present invention is claimed.
Claims (9)
1. a low creep high RUL refractory brick, including major ingredient and additive, it is characterised in that described major ingredient includes following quality
The raw material of percent: flint clay bulky grain 20%～40%, the little granule of flint clay 20%～35%, andalusite fine powder 15%～25% and
Bonding clay fine powder 5%～15%, bauxite micropowder 5%～15%；The quality of described additive is described major ingredient quality
4.5%～5.5%.
Low creep high RUL refractory brick the most according to claim 1, it is characterised in that described major ingredient includes following quality hundred
The raw material of mark: the little granule of flint clay bulky grain 31%, flint clay 28%, andalusite fine powder 20%, bonding clay fine powder 11% and aluminum
Bauxite clinker micropowder 10%.
Low creep high RUL refractory brick the most according to claim 1 and 2, it is characterised in that described flint clay is oarse-grained
Granularity is 1 mm～3 mm, and the short grained granularity of described flint clay is less than 1 mm.
Low creep high RUL refractory brick the most according to claim 3, it is characterised in that the granularity of described andalusite fine powder is little
Granularity in 0.074 mm, described bonding clay fine powder is less than 0.074 mm.
Low creep high RUL refractory brick the most according to claim 4, it is characterised in that described bauxite powder size
Less than 0.043 mm.
Low creep high RUL refractory brick the most according to claim 5, it is characterised in that described additive is pulp-water.
7. a preparation method for low creep high RUL refractory brick, comprises the following steps:
(1) calculate according to the raw material of mass percent described in any one of claim 1～6, by little to flint clay bulky grain, flint clay
Granule and additive carry out mixed grind and prepare prefabricated pug；Then in described prefabricated pug, andalusite fine powder, bauxite are added ripe
Material micropowder, bonding clay fine powder also carry out mixed grind and prepare mixed grind pug；
(2) described mixed grind pug is pressed into adobe, prepares described low creep high RUL after the calcining of described adobe drying fire-resistant
Brick.
The preparation method of low creep high RUL refractory brick the most according to claim 7, it is characterised in that described step (2)
Including: described mixed grind pug is pressed into adobe, and described adobe is dried 24 under the conditions of temperature is 60 DEG C～130 DEG C
Hour～36 hours；Then carry out calcining 10 hours～24 at a temperature of 1450 DEG C～1480 DEG C by dried described adobe
Hour, thus prepare described low creep high RUL refractory brick.
9. the application of the low creep high RUL refractory brick described in an any one of claim 1～6, it is characterised in that described low
Creep high RUL refractory brick is applied in carbon baking furnace.
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Cited By (5)
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| CN108503375A (en) * | 2018-03-08 | 2018-09-07 | 山东嘉腾实业有限公司 | High intensity ultra-large type keeps the temperature the preparation method of syphon |
| CN109053153A (en) * | 2018-09-11 | 2018-12-21 | 郑州荣盛窑炉耐火材料有限公司 | Low stomata clay brick of a kind of resisting temperature sudden turn of events chipping resistance and preparation method thereof |
| CN109251047A (en) * | 2018-10-08 | 2019-01-22 | 山东嘉和耐火材料有限责任公司 | A kind of preparation method of novel fire-resistant clay brick |
| CN111320462A (en) * | 2020-04-09 | 2020-06-23 | 郑州正仟新材料有限公司 | Compact clay brick and preparation method thereof |
| CN111718200A (en) * | 2020-05-29 | 2020-09-29 | 郑州安耐克实业有限公司 | Bottom creep clay brick for hot blast stove and preparation method thereof |
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| CN104072175A (en) * | 2014-07-16 | 2014-10-01 | 山国强 | Lint clay brick for cement kiln calciner and preparation method thereof |
| CN105418098A (en) * | 2015-12-16 | 2016-03-23 | 董建军 | Heat-conductive and energy-saving refractory brick used for fire path wall in carbon roasting furnace and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102040385A (en) * | 2009-10-24 | 2011-05-04 | 阮克胜 | Composite alkali-resistant refractory brick of pulverized fuel ash |
| CN103951448A (en) * | 2014-04-22 | 2014-07-30 | 河南鑫诚耐火材料股份有限公司 | Micro-expansive brick for carbon anode baking furnace and preparation method thereof |
| CN104072175A (en) * | 2014-07-16 | 2014-10-01 | 山国强 | Lint clay brick for cement kiln calciner and preparation method thereof |
| CN105418098A (en) * | 2015-12-16 | 2016-03-23 | 董建军 | Heat-conductive and energy-saving refractory brick used for fire path wall in carbon roasting furnace and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108503375A (en) * | 2018-03-08 | 2018-09-07 | 山东嘉腾实业有限公司 | High intensity ultra-large type keeps the temperature the preparation method of syphon |
| CN109053153A (en) * | 2018-09-11 | 2018-12-21 | 郑州荣盛窑炉耐火材料有限公司 | Low stomata clay brick of a kind of resisting temperature sudden turn of events chipping resistance and preparation method thereof |
| CN109251047A (en) * | 2018-10-08 | 2019-01-22 | 山东嘉和耐火材料有限责任公司 | A kind of preparation method of novel fire-resistant clay brick |
| CN111320462A (en) * | 2020-04-09 | 2020-06-23 | 郑州正仟新材料有限公司 | Compact clay brick and preparation method thereof |
| CN111718200A (en) * | 2020-05-29 | 2020-09-29 | 郑州安耐克实业有限公司 | Bottom creep clay brick for hot blast stove and preparation method thereof |
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Application publication date: 20161207 |