CN109020563A - It is burnt into alabaster silicon carbide brick and preparation method thereof - Google Patents
It is burnt into alabaster silicon carbide brick and preparation method thereof Download PDFInfo
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
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- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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Abstract
The present invention provides firing alabaster silicon carbide brick, including pyrophyllite raw ore (Al2O3·4SiO2·H2O), SiC, soft clay and additive.The present invention realizes that firing alabaster silicon carbide brick reduces energy consumption, reduces pollution.
Description
Technical field
The invention belongs to refractory lining technical field of material more particularly to a kind of preparations for being burnt into alabaster silicon carbide brick
Method.
Background technique
In steel smelting procedure, ladle is a kind of support container of high temperature iron liquid (1400-1500 DEG C), ladle
Internal layer is equipped with refractory material for working layer, and wherein refractory material for working layer is directly contacted with high temperature iron liquid when in use, it is desirable that molten iron
Liquid level refractory material for working layer below refractoriness with higher, intensity, iron-resistant water performance of flushing, higher iron-resistant liquid or iron
The chemical erosion performance of slag, the lower porosity；It is required that more than molten iron level refractory material for working layer intensity with higher,
Iron-resistant water performance of flushing, not dry slag.
Currently, ladle refractory material for working layer generallys use Al2O3- SiC-C material, containing more in such material
Crystalline flake graphite easily produces the product compared with low-porosity, resists high temperature iron liquid, the better performances that dreg chemistry corrodes.
But such refractory material has a problem in that the graphite in ladle refractory material for working layer is used in ladle
It can be oxidized in the process, free state oxygen is contained in high temperature iron liquid, generate carbon monoxide or carbon dioxide, the gas of generation cause dirt
Dye, is not inconsistent with low-carbon environment-friendly；Al2O3Brown Alundum, the special grade bauxite raw material that-SiC-C brick uses when producing are burnt by high temperature
At the modes such as electric smelting are processed alumine raw ore and are made, and generate in high temperature firing or electric melting process a large amount of dirty
Metachromia gas, and energy consumption is higher；Above-mentioned oxidation reaction makes refractory material for working layer generate stomata or hole, when in use high temperature
Iron liquid or slag liquid are easier to penetrate into refractory material and generate erosion damage to refractory material, at the same the particle on refractory material surface layer and
Fine powder is exposed in high temperature iron liquid and is gradually washed and causes the damage of refractory material；Into the refractory mineral of high temperature iron liquid
Particle, fine powder and not oxidized graphite generate pollution to high temperature iron liquid, increase energy consumption because removing these impurity in iron liquid
Add；Graphite powder is lighter, is also easy to produce dust during producing such refractory material, the dedusting burden of operation field is aggravated, to life
The health for producing on-site personnel is unfavorable；Iron liquid generates a large amount of slag in preprocessing process, and slag floats up to iron liquid surface or more,
The viscosity of slag is high, is adhered to internal layer surface, carries out operation of skimming, while destroying the surface layer of internal layer refractory material, makes iron liquid
Internal layer refractory damage more than liquid level is very fast, needs repairing and increases the usage amount of refractory material, increases the consumption of resource.
Summary of the invention
In view of the problems of the above-mentioned prior art, the object of the present invention is to provide a kind of systems for being burnt into alabaster silicon carbide brick
Preparation Method.
The present invention is achieved through the following technical solutions above-mentioned purpose: reducing energy consumption, reduces pollution.
It is burnt into alabaster silicon carbide brick, including pyrophyllite raw ore (Al2O3·4SiO2·H2O), SiC, soft clay, Yi Jitian
Add agent.
It is burnt into the preparation method of alabaster silicon carbide brick, comprising the following steps:
S1, the sorting of pyrophyllite raw ore remove limonite therein, rutile impurity, and the mineral selected are crushed, are sieved
Point and grinding, raw material is put into feed bin according to different types of different grain size respectively；
S2, the preparation of pug, the preparation of pug are divided into aggregate fraction and base portion, aggregate fraction according to ingredient is weighed
It is made of pyrophyllite particulate material, SiC particulate, the mass ratio of aggregate fraction is 65-70%, and the mass ratio of base portion is 30-
35%, aggregate fraction and base portion open preparation；
S3, the preparation of mud are added to the water using calcium lignosulfonate dry powder and soft clay fine powder, are mixed evenly
And it ferments；
The mixed Chan of S4, mud and pug, the mixed Chan of pug is mixed in Chan machine in pug to carry out, and aggregate fraction is put into mixed Chan machine
Mixed Chan, different types of each grade raw material is uniformly mixed, and the mud that mass ratio is 4-5% is added, and stirring keeps mud equal
It is even to be distributed in particles of aggregates surface, it adds matrix and mixes Chan, release the good pug of mixed Chan；
S5, the preparation of semi-finished product mix the good pug of Chan and carry out ageing mixture, semi-finished product compacting is carried out in brick machine, tool is made
There is the adobe of specific shape and bulk density；
S6, baking and firing, semi-finished product adobe is through overbaking, and the adobe after baking is burnt into hyperthermia tunnel Kiln, kiln discharge
After be cooled product.
Specifically, removing ferrous contaminants therein in screening process in step S1, each grade fineness >=90% is sieved.
Specifically, aggregate fraction is by pyrophyllite particulate material (granularity 3-1mm) or (granularity 1-0mm), SiC in step S2
Particle (granularity 1-0mm) composition.
Specifically, wherein the density of mud is 1.1-1.2g/cm in step S33。
Specifically, aggregate fraction is put into mixed Chan machine and mixes Chan 1-3min, by different types of each grade raw material in step S4
It is uniformly mixed, the mud that mass ratio is 4-5% is added, stirs 3-5min, mud slurry uniform is made to be distributed in particles of aggregates surface,
It adds matrix and mixes Chan 25-30min.
Specifically, mixing the good pug of Chan in step S5 and carrying out ageing mixture 12-24h.
Specifically, by 100-130 DEG C of baking, the adobe after baking requires its remnants trip for semi-finished product adobe in step S6
From water content < 0.5%, the adobe after baking is burnt into hyperthermia tunnel Kiln, and firing temperature is 1180-1250 DEG C.
Compared with prior art, the beneficial effects of the present invention are:
The present embodiment, which is burnt into alabaster silicon carbide brick, has Thermal Conductivity at High Temperature, and ladle clad temperature reduces by 100 when use
DEG C, since heat transfer causes energy consumption to reduce, heat insulation effect is excellent, reduces the energy consumption lost because of heat conduction diffusion；It burns
The impurity fused into iron liquid due to the erosion of high temperature iron liquid, slag when in use at alabaster silicon carbide brick as inner layer material compared with
It is few, reduce the energy consumption of smelting iron and steel；Use pyrophyllite for raw ore, and Al2O3In-SiC-C brick just using special grade bauxite, palm fibre
Energy consumption is greatly lowered in the use aspect of raw mineral materials and to the pollution of environment in the materials such as jade；Use Al2O3When-SiC-C brick,
Position more than ladle liquid level needs repeatedly to be repaired to more than iron liquid liquid level, and alabaster silicon carbide is used in the present embodiment
In the period of brick, more than iron liquid liquid level without repairing；The alabaster silicon carbide brick bulk density of firing is 2.2-2.3g/cm3
Compared with Al2O3The bulk density 2.6-2.9g/cm of-SiC-C brick3It is greatly lowered, therefore the dosage of ladle inner layer material is reduced,
Consumptive material is reduced, and reaches the effective use of resource；Graphite is not added in firing alabaster silicon carbide brick, reduces refractory material and produced
Dust pollution in journey, Oxidation of SiC performance is excellent compared with graphite, and therefore, alabaster silicon carbide brick is used as ladle inner layer material
In, it aoxidizes the carbon monoxide being discharged into atmosphere or carbon dioxide is minimum, effective protection environment meets low-carbon emission reduction.
Specific embodiment
Below just in conjunction with the embodiments, the embodiment of the present invention is described in further detail, so that the technology of the present invention
Scheme is more readily understood, grasps, but the present invention is not limited thereto.Experimental method described in following embodiments, such as without special theory
It is bright, it is conventional method；The reagent and material commercially obtain unless otherwise specified.
Embodiment 1:
The raw material for being burnt into alabaster silicon carbide brick includes pyrophyllite raw ore (Al2O3·4SiO2·H2O), SiC, soft clay,
Additive；Pyrophyllite raw ore is bulk material, and clout is granular-grade.Fe in raw material2O3、K2O、Na2The alkali components such as O are lower.
It is burnt into the preparation method of alabaster silicon carbide brick, comprising the following steps:
S1, the sorting of pyrophyllite raw ore remove limonite therein, rutile impurity, and the mineral selected are crushed, are sieved
Point and grinding, ferrous contaminants therein are removed except iron mode by electromagnetism in screening process, sieve each grade fineness 91%, will
Raw material puts into feed bin according to different types of different grain size respectively.
S2, the preparation of pug, the preparation of pug are divided into aggregate fraction and base portion, aggregate fraction according to ingredient is weighed
It is made of pyrophyllite particulate material (granularity 3-1mm), SiC particulate (granularity 1-0mm), the mass ratio of aggregate fraction is 65%, base
The mass ratio of matter part is 35%, and aggregate fraction and base portion open preparation.
S3, the preparation of mud are added to the water using calcium lignosulfonate dry powder and soft clay fine powder, are mixed equal
It is even, and ferment.Wherein the density of mud is 1.1g/cm3。
The mixed Chan of S4, mud and pug, the mixed Chan of pug is mixed in Chan machine in pug to carry out, and aggregate fraction is put into mixed Chan machine
Mixed Chan 1min, different types of each grade raw material is uniformly mixed, and the mud that mass ratio is 4% is added, and is stirred 3min, is made
Mud slurry uniform is distributed in particles of aggregates surface, adds matrix and mixes Chan 25min, releases the good pug of mixed Chan.
S5, the preparation of semi-finished product mix the good pug of Chan and carry out ageing mixture 12h, semi-finished product compacting is carried out in brick machine, is made
Adobe with specific shape and bulk density.
S6, baking and firing, by 100 DEG C of bakings, the adobe after baking requires its residual free water to contain for semi-finished product adobe
Amount < 0.5%, the adobe after baking is burnt into hyperthermia tunnel Kiln, and firing temperature is 1180 DEG C, and product are cooled after kiln discharge.
Embodiment 2:
Difference compared to embodiment 1 is to be burnt into the preparation method of alabaster silicon carbide brick, comprising the following steps:
S1, the sorting of pyrophyllite raw ore remove limonite therein, rutile impurity, and the mineral selected are crushed, are sieved
Point and grinding, ferrous contaminants therein are removed except iron mode by electromagnetism in screening process, sieve each grade fineness 93%, will
Raw material puts into feed bin according to different types of different grain size respectively.
S2, the preparation of pug, the preparation of pug are divided into aggregate fraction and base portion, aggregate fraction according to ingredient is weighed
It is made of pyrophyllite particulate material (granularity 1-0mm), SiC particulate (granularity 1-0mm), the mass ratio of aggregate fraction is 70%, base
The mass ratio of matter part is 30%, and aggregate fraction and base portion open preparation.
S3, the preparation of mud are added to the water using calcium lignosulfonate dry powder and soft clay fine powder, are mixed equal
It is even, and ferment.Wherein the density of mud is 1.2g/cm3。
The mixed Chan of S4, mud and pug, the mixed Chan of pug is mixed in Chan machine in pug to carry out, and aggregate fraction is put into mixed Chan machine
Mixed Chan 3min, different types of each grade raw material is uniformly mixed, and the mud that mass ratio is 5% is added, and is stirred 5min, is made
Mud slurry uniform is distributed in particles of aggregates surface, adds matrix and mixes Chan 30min, releases the good pug of mixed Chan.
S5, the preparation of semi-finished product mix the good pug of Chan and carry out ageing mixture for 24 hours, semi-finished product compacting is carried out in brick machine, is made
Adobe with specific shape and bulk density.
S6, baking and firing, by 130 DEG C of bakings, the adobe after baking requires its residual free water to contain for semi-finished product adobe
Amount < 0.5%, the adobe after baking is burnt into hyperthermia tunnel Kiln, and firing temperature is 1250 DEG C, and product are cooled after kiln discharge.
Embodiment 3:
Difference compared to embodiment 1 is to be burnt into the preparation method of alabaster silicon carbide brick, comprising the following steps:
S1, the sorting of pyrophyllite raw ore remove limonite therein, rutile impurity, and the mineral selected are crushed, are sieved
Point and grinding, ferrous contaminants therein are removed except iron mode by electromagnetism in screening process, sieve each grade fineness 90%, will
Raw material puts into feed bin according to different types of different grain size respectively.
S2, the preparation of pug, the preparation of pug are divided into aggregate fraction and base portion, aggregate fraction according to ingredient is weighed
It is made of pyrophyllite particulate material (granularity 1-0mm), SiC particulate (granularity 1-0mm), the mass ratio of aggregate fraction is 68%, base
The mass ratio of matter part is 32%, and aggregate fraction and base portion open preparation.
S3, the preparation of mud are added to the water using calcium lignosulfonate dry powder and soft clay fine powder, are mixed equal
It is even, and ferment.Wherein the density of mud is 1.15g/cm3。
The mixed Chan of S4, mud and pug, the mixed Chan of pug is mixed in Chan machine in pug to carry out, and aggregate fraction is put into mixed Chan machine
Mixed Chan 2min, different types of each grade raw material is uniformly mixed, and the mud that mass ratio is 4.5% is added, and stirs 4min,
So that mud slurry uniform is distributed in particles of aggregates surface, add matrix and mix Chan 28min, releases the good pug of mixed Chan.
S5, the preparation of semi-finished product mix the good pug of Chan and carry out ageing mixture 18h, semi-finished product compacting is carried out in brick machine, is made
Adobe with specific shape and bulk density.
S6, baking and firing, by 120 DEG C of bakings, the adobe after baking requires its residual free water to contain for semi-finished product adobe
Amount < 0.5%, the adobe after baking is burnt into hyperthermia tunnel Kiln, and firing temperature is 1215 DEG C, and product are cooled after kiln discharge.
When using above embodiments, the wherein selection of raw material: pyrophyllite has high temperature resistance good, has certain chemistry
Inertia, and draw materials and be easy；SiC acid and alkali resistance is good, it is not easy to and it reacts and is etched with high temperature iron liquid and slag, antioxygenic property
It is good；The a small amount of SiC in surface layer is oxidized in sintering process or in use process, aoxidizes the SiO of generation2Film can be overlying on refractory material
Surface generates protective effect to refractory material；Soft clay is bonding agent, main component Al2O3、SiO2, additive is to adobe
Play the role of promoting sintering in sintering process, densifies adobe；The sorting of pyrophyllite raw ore, remove limonite therein,
The impurity such as rutile, due to Fe2O3、K2O、Na2O, the impurity such as limonite, rutile can significantly reduce the high temperature resistance of material
And erosion-resisting characteristics.
Wherein the ratio of aggregate and matrix makes refractory clay reach most close accumulation, make adobe in forming process more
It is easy to reach densification.
The wherein variation in sintering process: the pyrophyllite in adobe can be sloughed at 600 DEG C in conjunction with water, can be divided at 1150 DEG C
Solution is mullite and cristobalite, and with certain volume expansion, densifies adobe more；Soft clay in adobe can make
Petrochemical industry occurs for mullite；Suitable additive acceleration of sintering accelerates adobe under the premise of not reducing adobe corrosion resistance performance
Densification, reduce its sintering temperature, make adobe firing energy consumption reduce.
Wherein finished product is used as without the pretreated ladle refractory material for working layer of molten iron and pre-processes iron as molten iron
Water packet oral area position internal layer, finished product adobe inside is mainly cristobalite, mullite, silicon carbide, pretreated without molten iron
In the use process of ladle, adobe surface is contacted with high temperature iron liquid, the SiO on adobe surface2Film plays certain guarantor to adobe
Shield effect, makes iron liquid and slag be not easily penetrated into inside adobe and adobe is made to be etched destruction, and improve inner layer material uses the longevity
Life；SiC antioxygenic property is good, and the ingredient in adobe is not easy to be etched and fuse into high temperature iron liquid, will not pollute, subtract to iron liquid
The energy consumption of iron liquid purified treatment again is lacked；In ladle packet mouth in use, adobe surface layer formed high viscosity film, the film with
A small amount of slag reacts to form protective layer, and the adhesion property of the protective layer is poor, will not cause during skimming to adobe because of adobe
It destroys, improves the service life of inner layer material.
Al is used compared to the prior art2O3- SiC-C brick, the present embodiment have Thermal Conductivity at High Temperature, ladle when use
Clad temperature reduces by 100 DEG C, and since heat transfer causes energy consumption to reduce, heat insulation effect is excellent, reduces because of heat conduction diffusion
And the energy consumption lost；Alabaster silicon carbide brick is burnt into as inner layer material when in use since the erosion of high temperature iron liquid, slag is to iron liquid
In the impurity that fuses into it is less, reduce the energy consumption of smelting iron and steel；Use pyrophyllite for raw ore, and Al2O3Using superfine in-SiC-C brick
Energy consumption is greatly lowered in the use aspect of raw mineral materials and to the pollution of environment in the materials such as alumine, Brown Alundum；It uses
Al2O3When-SiC-C brick, more than ladle liquid level position needs repeatedly to be repaired to more than iron liquid liquid level, in the present embodiment
In period using alabaster silicon carbide brick, more than iron liquid liquid level without repairing；The alabaster silicon carbide brick bulk density of firing
For 2.2-2.3g/cm3Compared with Al2O3The bulk density 2.6-2.9g/cm of-SiC-C brick3It is greatly lowered, therefore ladle internal layer material
The dosage of material is reduced, and consumptive material is reduced, and reaches the effective use of resource；Graphite is not added in firing alabaster silicon carbide brick, reduces
Dust pollution in refractory material production process, Oxidation of SiC performance is excellent compared with graphite, and therefore, alabaster silicon carbide brick is used as iron
In water packet inner layer material, aoxidizes the carbon monoxide being discharged into atmosphere or carbon dioxide is minimum, effective protection environment meets low-carbon
Emission reduction.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (8)
1. being burnt into alabaster silicon carbide brick, it is characterised in that: including pyrophyllite raw ore (Al2O3·4SiO2·H2O), SiC, lightweight are viscous
Soil and additive.
2. being burnt into the preparation method of alabaster silicon carbide brick, which comprises the following steps:
S1, the sorting of pyrophyllite raw ore remove limonite therein, rutile impurity, the mineral selected are crushed, sieve and
Raw material is put into feed bin according to different types of different grain size by grinding respectively；
S2, the preparation of pug, the preparation of pug are divided into aggregate fraction and base portion, aggregate fraction is by leaf according to ingredient is weighed
Alabaster particulate material, SiC particulate composition, the mass ratio of aggregate fraction are 65-70%, and the mass ratio of base portion is 30-35%,
Aggregate fraction and base portion open preparation；
S3, the preparation of mud are added to the water using calcium lignosulfonate dry powder and soft clay fine powder, are mixed evenly concurrent
Ferment；
The mixed Chan of S4, mud and pug, the mixed Chan of pug is mixed in Chan machine in pug to carry out, and aggregate fraction is put into mixed Chan machine and is mixed
Different types of each grade raw material is uniformly mixed by Chan, and the mud that mass ratio is 4-5% is added, and stirring makes mud slurry uniform
It is distributed in particles of aggregates surface, matrix is added and mixes Chan, releases the good pug of mixed Chan；
S5, the preparation of semi-finished product mix the good pug of Chan and carry out ageing mixture, semi-finished product compacting carried out in brick machine, being made has spy
The adobe of setting shape and bulk density；
S6, baking and firing, through overbaking, the adobe after baking is burnt into hyperthermia tunnel Kiln, cold after kiln discharge for semi-finished product adobe
It but is finished product.
3. the preparation method of firing alabaster silicon carbide brick according to claim 2, it is characterised in that: in step S1, sieving
Ferrous contaminants therein are removed during point, sieve each grade fineness >=90%.
4. the preparation method of firing alabaster silicon carbide brick according to claim 2, it is characterised in that: in step S2, aggregate
Part is made of pyrophyllite particulate material (granularity 3-1mm) or (granularity 1-0mm), SiC particulate (granularity 1-0mm).
5. the preparation method of firing alabaster silicon carbide brick according to claim 2, it is characterised in that: in step S3, wherein
The density of mud is 1.1-1.2g/cm3。
6. the preparation method of firing alabaster silicon carbide brick according to claim 2, it is characterised in that: in step S4, by bone
Material part puts into mixed Chan machine and mixes Chan 1-3min, and different types of each grade raw material is uniformly mixed, and addition mass ratio is 4-
5% mud stirs 3-5min, mud slurry uniform is made to be distributed in particles of aggregates surface, adds matrix and mixes Chan 25-30min.
7. the preparation method of firing alabaster silicon carbide brick according to claim 2, it is characterised in that: in step S5, mix Chan
Good pug carries out ageing mixture 12-24h.
8. the preparation method of firing alabaster silicon carbide brick according to claim 2, it is characterised in that: in step S6, half at
Product adobe is by 100-130 DEG C of baking, and the adobe after baking requires its residual free water content < 0.5%, and the adobe after baking exists
It is burnt into hyperthermia tunnel Kiln, firing temperature is 1180-1250 DEG C.
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| CN201810816590.3A CN109020563A (en) | 2018-07-24 | 2018-07-24 | It is burnt into alabaster silicon carbide brick and preparation method thereof |
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| CN201810816590.3A CN109020563A (en) | 2018-07-24 | 2018-07-24 | It is burnt into alabaster silicon carbide brick and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110330346A (en) * | 2019-06-21 | 2019-10-15 | 宜兴新威利成耐火材料有限公司 | Carbon-free cured stone silicon carbide unburned brick and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417357A (en) * | 2011-07-22 | 2012-04-18 | 郑州京华耐火材料实业有限公司 | Pyrophyllite-silicon carbide carbon brick for ladle and preparation method thereof |
| CN103288465A (en) * | 2013-06-19 | 2013-09-11 | 宜兴新威利成耐火材料有限公司 | Pyrophyllite brick and preparation method thereof |
| CN103496996A (en) * | 2013-10-10 | 2014-01-08 | 浙江自立股份有限公司 | Burnt agalmatolite brick and preparation method of burnt agalmatolite brick |
| CN107573083A (en) * | 2017-09-09 | 2018-01-12 | 山西圣火炉料有限公司 | A kind of alabaster refractory brick, brick composite additive and preparation method thereof |
-
2018
- 2018-07-24 CN CN201810816590.3A patent/CN109020563A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417357A (en) * | 2011-07-22 | 2012-04-18 | 郑州京华耐火材料实业有限公司 | Pyrophyllite-silicon carbide carbon brick for ladle and preparation method thereof |
| CN103288465A (en) * | 2013-06-19 | 2013-09-11 | 宜兴新威利成耐火材料有限公司 | Pyrophyllite brick and preparation method thereof |
| CN103496996A (en) * | 2013-10-10 | 2014-01-08 | 浙江自立股份有限公司 | Burnt agalmatolite brick and preparation method of burnt agalmatolite brick |
| CN107573083A (en) * | 2017-09-09 | 2018-01-12 | 山西圣火炉料有限公司 | A kind of alabaster refractory brick, brick composite additive and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张朝晖: "《冶金环保与资源综合利用》", 31 January 2016, 冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330346A (en) * | 2019-06-21 | 2019-10-15 | 宜兴新威利成耐火材料有限公司 | Carbon-free cured stone silicon carbide unburned brick and preparation method thereof |
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