CN110407567A - Low thermally conductive anti-erosion brick and its production technology - Google Patents
Low thermally conductive anti-erosion brick and its production technology Download PDFInfo
- Publication number
- CN110407567A CN110407567A CN201910794973.XA CN201910794973A CN110407567A CN 110407567 A CN110407567 A CN 110407567A CN 201910794973 A CN201910794973 A CN 201910794973A CN 110407567 A CN110407567 A CN 110407567A
- Authority
- CN
- China
- Prior art keywords
- thermally conductive
- parts
- low thermally
- conductive anti
- erosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B35/103—Refractories from grain sized mixtures containing non-oxide refractory materials, e.g. carbon
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3826—Silicon carbides
-
- 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
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
-
- 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
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/606—Drying
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
Abstract
The present invention provides a kind of low thermally conductive anti-erosion brick and its production technology, low thermally conductive each parts by weight of raw materials of anti-erosion brick are as follows: 50-70 parts of bauxite chamotte, 15-25 parts of carbide fine powder, 10-20 parts of fire clay, 5-10 parts of alumine fine powder, 1-5 parts of silica solution, 1-5 parts of dextrin.The production technology of low thermally conductive anti-erosion brick, comprising the following steps: (1) first weigh bauxite chamotte in proportion, silica solution is added and dextrin stirs 3-5 minutes, adds appropriate phosphoric acid solution to stir 2-3 minutes, obtains premix A；(2) silicon carbide, fire clay and alumine fine powder are then weighed in proportion, are added in premix A and are stirred 5-6 minutes, obtain premix B；(3) premix B is formed using 630 tons of press machines, it is dry, obtain adobe；(4) wear-resisting adobe is sent into tunnel oven and is fired, obtain low thermally conductive anti-erosion brick.Using low thermally conductive anti-erosion brick prepared by the present invention, have the advantages that thermal coefficient is low, heat resistance is high, erosion-resisting characteristics is high.
Description
Technical field
The present invention relates to fire resisting material fields, and in particular to low thermally conductive anti-erosion brick and its production technology.
Background technique
Refractory brick abbreviation firebrick.The refractory material being fired into refractory clay or other refractory raw materials.It is faint yellow or with brown
Color.It is mainly used for building smelting furnace, is resistant to 1580-1770 DEG C of high temperature.Also it is firebrick.Fire proofed wood with certain shapes and size
Material.Divided by process of preparing can be divided into be fired into bricks, unburned brick, fused cast refractories (molten-cast brick), refratory insulating brick；By shape and
Size can be divided into standard size brick, common brick, specific bricks etc..It can be used as building the high temperature Building wood of kiln and various Thermal Equipments
Material and structural material, and it is amenable to various physicochemical changes and mechanism at high temperature.Such as chamotte brick, high alumina
Brick, silica brick, magnesia brick etc..
Silica brick refers to the refractory brick containing Al2O393% or more, is the principal item of acid brick.It is mainly used for building
Coke oven, be also used for various glass, ceramics, carbon calciner, refractory brick thermal kiln furnace vault and other weight bearing areas, in heat
The high temperature weight bearing area of wind furnace is also used, but should not be used in 600 DEG C or less and the big Thermal Equipment of temperature fluctuation.
Existing silica brick has high mechanical strength, thermal conductivity height, good thermal shock, high-temperature wearable to damage, and property is good, erosion-resisting characteristics is excellent
Good feature is widely used in the industrial circles such as steel, metallurgy, petrochemical industry, electric power, ceramics.But silica brick material is in use process
In due to aoxidizing, institutional framework is loose, and stomata becomes larger, make slag and oxygen be easier to enter product inside, further result in
The destruction of material structure reduces the performance of material other aspects, severely impacts the quality of material.Therefore, it needs a kind of resistance to
Firebrick production technology further increases the erosion-resisting characteristics of silica brick.
Summary of the invention
The invention aims to make up prior art defect, the low thermally conductive anti-erosion brick of one kind and its production technology are provided,
The erosion-resisting characteristics of refractory brick is further improved, and there is lower thermal conductivity.
To achieve the above object, the present invention is achieved by following scheme:
The present invention provides a kind of low thermally conductive anti-erosion brick, each parts by weight of raw materials are as follows: 50-70 parts of bauxite chamotte, carbon
15-25 parts of SiClx fine powder, 10-20 parts of fire clay, 5-10 parts of alumine fine powder, 1-5 parts of silica solution, 1-5 parts of dextrin.
Preferably, Al in bauxite chamotte2O3Content is greater than 70wt%, Fe2O3Content is less than 2wt%, and alumine is ripe
The granularity of material is 1-5mm.
Preferably, carbide fine powder granularity is -200 mesh of 320 mesh.
Preferably, Al2O3 content is greater than 30wt% in fire clay, and the granularity of fire clay is -200 mesh of 320 mesh.
Preferably, Al in alumine fine powder2O3Content is greater than 80wt%, and alumine powder particle size is 320 mesh -200
Mesh.
Nano-scale alumina content is greater than 25wt% preferably in silica solution.
The present invention also provides a kind of production technologies of low thermally conductive anti-erosion brick, comprising the following steps:
(1) bauxite chamotte is first weighed in proportion, and silica solution is added and dextrin stirs 3-5 minutes, adds appropriate phosphoric acid molten
Liquid stirs 2-3 minutes, obtains premix A；
(2) silicon carbide, fire clay and alumine fine powder are then weighed in proportion, and 5-6 points of stirring in premix A are added
Clock obtains premix B；
(3) premix B is formed using 630 tons of press machines, it is dry, obtain adobe；
(4) wear-resisting adobe is sent into tunnel oven and is fired, obtain low thermally conductive anti-erosion brick.
Preferably, the mass concentration of phosphoric acid solution is 42.5-60% in step (1), adds the quality of phosphoric acid solution as original
Expect the 2-3% of gross mass.
Preferably, drying temperature is 140-160 DEG C in step (3), drying time 5-8h.
Preferably, tunnel oven temperature is controlled at 1400-1450 DEG C in step (4).
The beneficial effects of the present invention are:
The low thermally conductive anti-erosion brick of the present invention, with varigrained bauxite chamotte, carbide fine powder, fire clay, high alumina
Alumina fine powder is sufficiently mixed, and matches more accurate, less error, ensure that the resulting low thermally conductive each position of anti-erosion brick of calcining
The consistency of performance；Al2O3 can be filled in refractory brick stomata in the fire clay that inventive formulation uses, and change brick body stomata
Form enhances erosion-resisting characteristics；Nano silica particle and bauxite chamotte in silica solution, fire clay thermally conductive anti-can be invaded low
Stronger Ceramic bond is formed in erosion matrix, improves the wear-resisting property of brick body；Utilize the resistance to burning of bauxite chamotte, fire clay
Characteristic and preferable mouldability, so that the low thermally conductive anti-erosion brick of preparation has high RUL, high thermal shock stability.In conclusion
Using low thermally conductive anti-erosion brick prepared by the present invention, have the advantages that thermal coefficient is low, heat resistance is high, erosion-resisting characteristics is high.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
All other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
Embodiment 1
A kind of low thermally conductive anti-erosion brick, each parts by weight of raw materials are as follows: granularity is the bauxite chamotte 5 of 3-5mm, part, granularity
For 30 parts of the bauxite chamotte of 1-3mm, granularity be 1-2mm 20 parts of bauxite chamotte, silicon carbide that granularity is 200 mesh it is thin
20 parts of powder, 10 parts of the fire clay that granularity is 200 mesh, 10 parts of the alumine fine powder that granularity is 200 mesh, 5 parts of silica solution, dextrin 2
Part.
Al in bauxite chamotte2O3Content is greater than 70wt%, Fe2O3Content is less than 2wt%.
Al2O3 content is greater than 30wt% in fire clay.
Al in alumine fine powder2O3Content is greater than 80wt%.
Nano-scale alumina content is greater than 25wt% in silica solution.
The production technology of above-mentioned low thermally conductive anti-erosion brick, comprising the following steps:
(1) bauxite chamotte is first weighed in proportion, and silica solution is added and dextrin stirs 5 minutes, adds total mass of raw material
2.5% mass concentration is that 42.5% phosphoric acid solution stirs 2 minutes, obtains premix A；
(2) silicon carbide, fire clay and alumine fine powder are then weighed in proportion, are added in premix A and are stirred 5 minutes,
Obtain premix B；
(3) premix B is formed using 630 tons of press machines, 160 DEG C of dry 5h obtain adobe；
(4) wear-resisting adobe is sent into 1450 DEG C of tunnel oven and is fired, obtain low thermally conductive anti-erosion brick.
The low thermally conductive anti-erosion brick performance test results of preparation are as shown in table 1:
Embodiment 2
A kind of low thermally conductive anti-erosion brick, each parts by weight of raw materials are as follows: 8 parts of the bauxite chamotte that granularity is 3-5mm, granularity are
15 parts of bauxite chamotte that 32 parts of the bauxite chamotte of 1-3mm, granularity are 1-2mm, the carbide fine powder that granularity is 320 mesh
20 parts, 15 parts of the fire clay that granularity is 320 mesh, 8 parts of the alumine fine powder that granularity is 320 mesh, 2 parts of silica solution, 5 parts of dextrin.
Al in bauxite chamotte2O3Content is greater than 70wt%, Fe2O3Content is less than 2wt%.
Al2O3 content is greater than 30wt% in fire clay.
Al in alumine fine powder2O3Content is greater than 80wt%.
Nano-scale alumina content is greater than 25wt% in silica solution.
The production technology of above-mentioned low thermally conductive anti-erosion brick, comprising the following steps:
(1) bauxite chamotte is first weighed in proportion, and silica solution is added and dextrin stirs 5 minutes, adds total mass of raw material
2.6% mass concentration is that 45% phosphoric acid solution stirs 3 minutes, obtains premix A；
(2) silicon carbide, fire clay and alumine fine powder are then weighed in proportion, are added in premix A and are stirred 6 minutes,
Obtain premix B；
(3) premix B is formed using 630 tons of press machines, 150 DEG C of dry 6h obtain adobe；
(4) wear-resisting adobe is sent into 1430 DEG C of tunnel oven and is fired, obtain low thermally conductive anti-erosion brick.
The low thermally conductive anti-erosion brick performance test results of preparation are as shown in table 2:
Embodiment 3
A kind of low thermally conductive anti-erosion brick, each parts by weight of raw materials are as follows: 8 parts of the bauxite chamotte that granularity is 3-5mm, granularity are
17 parts of bauxite chamotte that 35 parts of the bauxite chamotte of 1-3mm, granularity are 1-2mm, the carbide fine powder that granularity is 320 mesh
15 parts, 12 parts of the fire clay that granularity is 200 mesh, 10 parts of the alumine fine powder that granularity is 200 mesh, 5 parts of silica solution, 5 parts of dextrin.
Al in bauxite chamotte2O3Content is greater than 70wt%, Fe2O3Content is less than 2wt%.
Al2O3 content is greater than 30wt% in fire clay.
Al in alumine fine powder2O3Content is greater than 80wt%.
Nano-scale alumina content is greater than 25wt% in silica solution.
The production technology of above-mentioned low thermally conductive anti-erosion brick, comprising the following steps:
(1) bauxite chamotte is first weighed in proportion, and silica solution is added and dextrin stirs 3 minutes, adds total mass of raw material
2.7% mass concentration is that 50% phosphoric acid solution stirs 3 minutes, obtains premix A；
(2) silicon carbide, fire clay and alumine fine powder are then weighed in proportion, are added in premix A and are stirred 5 minutes,
Obtain premix B；
(3) premix B is formed using 630 tons of press machines, 160 DEG C of dry 5h obtain adobe；
(4) wear-resisting adobe is sent into 1450 DEG C of tunnel oven and is fired, obtain low thermally conductive anti-erosion brick.
The low thermally conductive anti-erosion brick performance test results of preparation are as shown in table 3:
Embodiment 4
A kind of low thermally conductive anti-erosion brick, each parts by weight of raw materials are as follows: granularity is 10 parts of the bauxite chamotte of 3-5mm, granularity
For 25 parts of the bauxite chamotte of 1-3mm, granularity be 1-2mm 20 parts of bauxite chamotte, silicon carbide that granularity is 200 mesh it is thin
25 parts of powder, 15 parts of the fire clay that granularity is 320 mesh, 8 parts of the alumine fine powder that granularity is 200 mesh, 4 parts of silica solution, dextrin 5
Part.
Al in bauxite chamotte2O3Content is greater than 70wt%, Fe2O3Content is less than 2wt%.
Al2O3 content is greater than 30wt% in fire clay.
Al in alumine fine powder2O3Content is greater than 80wt%.
Nano-scale alumina content is greater than 25wt% in silica solution.
The production technology of above-mentioned low thermally conductive anti-erosion brick, comprising the following steps:
(1) bauxite chamotte is first weighed in proportion, and silica solution is added and dextrin stirs 5 minutes, adds total mass of raw material
2.8% mass concentration is that 55% phosphoric acid solution stirs 3 minutes, obtains premix A；
(2) silicon carbide, fire clay and alumine fine powder are then weighed in proportion, are added in premix A and are stirred 6 minutes,
Obtain premix B；
(3) premix B is formed using 630 tons of press machines, 150 DEG C of dry 5-8h obtain adobe；
(4) wear-resisting adobe is sent into 1420 DEG C of tunnel oven and is fired, obtain low thermally conductive anti-erosion brick.
The low thermally conductive anti-erosion brick performance test results of preparation are as shown in table 4:
Embodiment 5
A kind of low thermally conductive anti-erosion brick, each parts by weight of raw materials are as follows: 6 parts of the bauxite chamotte that granularity is 3-5mm, granularity are
19 parts of bauxite chamotte that 35 parts of the bauxite chamotte of 1-3mm, granularity are 1-2mm, the carbide fine powder that granularity is 200 mesh
15 parts, 15 parts of the fire clay that granularity is 200 mesh, 10 parts of the alumine fine powder that granularity is 320 mesh, 5 parts of silica solution, 5 parts of dextrin.
Al in bauxite chamotte2O3Content is greater than 70wt%, Fe2O3Content is less than 2wt%.
Al2O3 content is greater than 30wt% in fire clay.
Al in alumine fine powder2O3Content is greater than 80wt%.
Nano-scale alumina content is greater than 25wt% in silica solution.
The production technology of above-mentioned low thermally conductive anti-erosion brick, comprising the following steps:
(1) bauxite chamotte is first weighed in proportion, and silica solution is added and dextrin stirs 5 minutes, adds total mass of raw material
2.9% mass concentration is that 60% phosphoric acid solution stirs 3 minutes, obtains premix A；
(2) silicon carbide, fire clay and alumine fine powder are then weighed in proportion, are added in premix A and are stirred 6 minutes,
Obtain premix B；
(3) premix B is formed using 630 tons of press machines, 140 dry 5h obtain adobe；
(4) wear-resisting adobe is sent into 1450 DEG C of tunnel oven and is fired, obtain low thermally conductive anti-erosion brick.
The low thermally conductive anti-erosion brick performance test results of preparation are as shown in table 5:
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, also do not limit the specific embodiment of the invention.Obviously, according to the content of this specification, can make very much
Modifications and variations.These embodiments are chosen and specifically described to this specification, be principle in order to better explain the present invention and
Practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only wanted by right
Ask the limitation of book and its full scope and equivalent.
Claims (10)
1. a kind of low thermally conductive anti-erosion brick, which is characterized in that each parts by weight of raw materials are as follows: 50-70 parts of bauxite chamotte, silicon carbide
15-25 parts of fine powder, 10-20 parts of fire clay, 5-10 parts of alumine fine powder, 1-5 parts of silica solution, 1-5 parts of dextrin.
2. low thermally conductive anti-erosion brick according to claim 1, which is characterized in that A1 in the bauxite chamotte2O3Content
Greater than 70wt%, Fe2O3Content is less than 2wt%, and the granularity of bauxite chamotte is 1-5mm.
3. low thermally conductive anti-erosion brick according to claim 2, which is characterized in that the carbide fine powder granularity is 320 mesh-
200 mesh.
4. low thermally conductive anti-erosion brick according to claim 1, which is characterized in that Al2O3 content is greater than in the fire clay
30wt%, the granularity of fire clay are -200 mesh of 320 mesh.
5. low thermally conductive anti-erosion brick according to claim 1, which is characterized in that Al in the alumine fine powder2O3Content
Greater than 80wt%, alumine powder particle size is -200 mesh of 320 mesh.
6. low thermally conductive anti-erosion brick according to claim 1, which is characterized in that nano-scale alumina content in the silica solution
Greater than 25wt%.
7. the production technology of low thermally conductive anti-erosion brick as claimed in claims 1-5, which comprises the following steps:
(1) bauxite chamotte is first weighed in proportion, and silica solution is added and dextrin stirs 3-5 minutes, appropriate phosphoric acid solution is added to stir
It mixes 2-3 minutes, obtains premix A；
(2) silicon carbide, fire clay and alumine fine powder are then weighed in proportion, are added in premix A and are stirred 5-6 minutes, obtain
To premix B；
(3) premix B is formed using 630 tons of press machines, it is dry, obtain adobe；
(4) wear-resisting adobe is sent into tunnel oven and is fired, obtain low thermally conductive anti-erosion brick.
8. the production technology of low thermally conductive anti-erosion brick according to claim 6, which is characterized in that phosphorus in the step (1)
The mass concentration of acid solution is 42.5-60%, and the quality for adding phosphoric acid solution is the 2-3% of total mass of raw material.
9. the production technology of low thermally conductive anti-erosion brick according to claim 6, which is characterized in that done in the step (3)
Dry temperature is 140-160 DEG C, drying time 5-8h.
10. the production technology of low thermally conductive anti-erosion brick according to claim 6, which is characterized in that tunnel in the step (4)
Road kiln temperature degree is controlled at 1400-1450 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794973.XA CN110407567A (en) | 2019-08-27 | 2019-08-27 | Low thermally conductive anti-erosion brick and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794973.XA CN110407567A (en) | 2019-08-27 | 2019-08-27 | Low thermally conductive anti-erosion brick and its production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110407567A true CN110407567A (en) | 2019-11-05 |
Family
ID=68368735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910794973.XA Pending CN110407567A (en) | 2019-08-27 | 2019-08-27 | Low thermally conductive anti-erosion brick and its production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110407567A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180947A (en) * | 2021-12-20 | 2022-03-15 | 新密市正兴耐火材料有限公司 | Anti-erosion alkali-resistant brick |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399086A (en) * | 2010-09-09 | 2012-04-04 | 郑州汇特耐火材料有限公司 | Guimo brick and its manufacturing technology |
-
2019
- 2019-08-27 CN CN201910794973.XA patent/CN110407567A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399086A (en) * | 2010-09-09 | 2012-04-04 | 郑州汇特耐火材料有限公司 | Guimo brick and its manufacturing technology |
Non-Patent Citations (2)
| Title |
|---|
| 姚峰: "高强耐磨硅莫砖的性能研究及应用", 《中国非金属矿工业导刊》 * |
| 李恒德: "《现代材料科学与工程辞典》", 31 August 2001, 山东科学技术出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180947A (en) * | 2021-12-20 | 2022-03-15 | 新密市正兴耐火材料有限公司 | Anti-erosion alkali-resistant brick |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100402470C (en) | Thermal-knock resisting diamond spar-spinele refractory materials and its production | |
| CN103496992B (en) | Chromium zirconium mullite refractory material and preparation method thereof | |
| CN116332631A (en) | Chromium-aluminum-magnesium-zirconium refractory brick and preparation method thereof | |
| CN103626503A (en) | Longevous mullite brick for hot blast stove and preparation method thereof | |
| WO1995015932A1 (en) | Chromium-free brick | |
| CN107089835A (en) | Carbon calciner andalusite mullite composite brick and preparation method thereof | |
| CN112479693A (en) | High-strength thermal shock-resistant wear-resistant silicon mullite brick and production process thereof | |
| CN103708844B (en) | Al2O3-Cr2O3 refractory product and preparation method thereof | |
| CN110028316A (en) | A kind of cordierite kiln furniture saggar and preparation method thereof | |
| CN110407567A (en) | Low thermally conductive anti-erosion brick and its production technology | |
| CN111646807A (en) | Low-heat-conductivity thermal-shock-resistant wear-resistant brick and production process thereof | |
| CN110452002A (en) | A kind of refractory brick and preparation method thereof with corrosion resistance | |
| CN108530042A (en) | A kind of firing highly heatproof and shockproof bauxite brick and its production technology | |
| JP2003238250A (en) | Yttria refractory | |
| CN114853454A (en) | High-strength compact zirconium-chromium corundum brick and preparation method thereof | |
| Kusiorowski et al. | Fused magnesia-zirconia co-clinker for fired refractories | |
| US20040204305A1 (en) | Refractory shaped body with increased alkali resistance | |
| US3269850A (en) | Alumina refractories | |
| US3248239A (en) | Process of making magnesia chrome refractory brick of increased strength at elevated temperatures | |
| Kumar et al. | Study on preformed and in situ spinel containing alumina castable for steel ladle: Effect of fume silica content | |
| US3765914A (en) | Siliceous bonded refractory | |
| US3282579A (en) | Refractory lining | |
| JP4323732B2 (en) | Insulating castable refractory | |
| KR20010060400A (en) | Castable batch composition for blow pipe of blast furnace | |
| CN114538921B (en) | Glass-combined large-size zirconia compact sintered product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191105 |
|
| RJ01 | Rejection of invention patent application after publication |