CN105036779A - Preparation method of silica bricks for hot blast stove - Google Patents
Preparation method of silica bricks for hot blast stove Download PDFInfo
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- CN105036779A CN105036779A CN201510571656.3A CN201510571656A CN105036779A CN 105036779 A CN105036779 A CN 105036779A CN 201510571656 A CN201510571656 A CN 201510571656A CN 105036779 A CN105036779 A CN 105036779A
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- Prior art keywords
- silica
- granularity
- preparation
- brick
- hotblast stove
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Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 287
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 135
- 239000011449 brick Substances 0.000 title claims abstract description 66
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000000843 powder Substances 0.000 claims abstract description 39
- 239000000203 mixture Substances 0.000 claims abstract description 36
- 229910052742 iron Inorganic materials 0.000 claims abstract description 26
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 25
- 239000000654 additive Substances 0.000 claims abstract description 24
- 239000002131 composite material Substances 0.000 claims abstract description 24
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 23
- 230000000996 additive effect Effects 0.000 claims abstract description 23
- 239000004927 clay Substances 0.000 claims abstract description 17
- 239000010433 feldspar Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 11
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 10
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 10
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000000748 compression moulding Methods 0.000 claims abstract description 5
- 239000002002 slurry Substances 0.000 claims abstract description 5
- 229960001866 silicon dioxide Drugs 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 10
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 10
- 239000004571 lime Substances 0.000 claims description 10
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 7
- 206010020843 Hyperthermia Diseases 0.000 claims description 6
- 239000011575 calcium Substances 0.000 claims description 6
- 230000036031 hyperthermia Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 229940126062 Compound A Drugs 0.000 claims description 4
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 206010013786 Dry skin Diseases 0.000 claims description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 2
- 238000013467 fragmentation Methods 0.000 claims description 2
- 238000006062 fragmentation reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 239000013078 crystal Substances 0.000 abstract description 12
- 235000011116 calcium hydroxide Nutrition 0.000 abstract description 10
- 239000010453 quartz Substances 0.000 abstract description 10
- 230000009466 transformation Effects 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- 239000002699 waste material Substances 0.000 abstract 2
- 239000000440 bentonite Substances 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- 238000010304 firing Methods 0.000 abstract 1
- 239000010436 fluorite Substances 0.000 description 11
- 238000005336 cracking Methods 0.000 description 9
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 229910052905 tridymite Inorganic materials 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 231100000957 no side effect Toxicity 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Paper (AREA)
Abstract
The invention discloses a preparation method of silica bricks for a hot blast stove. The silica bricks comprise 20-35% of silica with the granularity of 2.18 mm, 40-50% of silica with the granularity of 1.65 mm, 10-20% of silica with the granularity smaller than 0.1 mm, 10-20% of waste silicon dioxide clinker, 0.5-1.5% of paper pulp, 6-8% of composite addition agent and 2.5-5% of special additive. The composite addition agent comprises 24.0-28.0% of CaO and 3.5-6.0% of iron scales. The special additive is a mixture of bentonite, Ca(OH)2 powder, clay and feldspar. Powder is added with the composite addition agent and water to be dispersed into slurry B, the paper pulp is added, and the mixture is ground into mud; compression moulding is performed; firing is performed at 1420-1460 DEG C after drying, and then the silica bricks are formed. The kinds of additives are reduced, the production process is simplified, and the probability of production errors is reduced; the waste silicon dioxide clinker can reduce volume expansion in crystal type transformation of quartz, reduce cracks of the silica bricks and increase the finished product rate.
Description
Technical field
The present invention relates to a kind of refractories for hot blast stove technology, specifically a kind of preparation method of hotblast stove silica brick.
Background technology
At present, the production traditional raw material formula of hotblast stove silica brick is a certain amount of silica granule material, a certain amount of silica fine powder, adds admixture such as feldspar, fluorite, clay and so on, then adds paper pulp, milk of lime, iron scale powder etc.The material crossing multiple types in composition of raw materials weighs proportioning etc. and causes the loaded down with trivial details of production process; slightly link is careless; production error can be brought; affect quality product; and fluorite underground storage in composition of raw materials is limited; market value is high, and in use has stronger corrodibility, is unfavorable for protection of the environment.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of preparation method of hotblast stove silica brick, overcome admixture in the production of current hotblast stove silica brick of a great variety, production process is loaded down with trivial details, and containing problems such as fluorites in composition of raw materials, reach the kind not only reducing admixture, simplify production process, reduce the technique effect of production process error probability, and find suitable raw material substitution fluorite, improve the performance of product.
In order to realize the object solved the problems of the technologies described above, present invention employs following technical scheme:
A kind of preparation method of hotblast stove silica brick, contained by it, the mass percent of component consists of: granularity is the silica 20 ~ 35% of 2.18mm, granularity is the silica 40 ~ 50% of 1.65mm, granularity <0.1mm silica 10 ~ 20%, useless silicon-dioxide grog 10 ~ 20%, paper pulp 0.5 ~ 1.5%, composite additive 6 ~ 8% and special admixture 2.5 ~ 5%; Preparation technology is:
(1) silica, useless brick grog, special admixture is taken by the composition and ratio of the claims, be dry mixed evenly at edge runner-wet mill and become compound A, take a certain amount of composite additive pre-dispersed one-tenth slurry B in a certain amount of water by the composition and ratio of the claims, take a certain amount of paper pulp C by the composition and ratio of the claims;
(2) A, B, C are rolled in edge runner-wet mill mixing and become pug D in 20 minutes;
(3) by D compression moulding under 400 tons of nominal pressures;
(4), after brick bat drying to residual water-content shaping for step (3) being not more than 1.0%, within 26 ~ 30 hours, burn till at hyperthermia tunnel Kiln inside holding.
Concrete further, the mode of brick bat drying is: be no more than 130 DEG C of temperature dryings.
Concrete further, the temperature that hyperthermia tunnel Kiln burns till is: 1420 ~ 1460 DEG C.
Various content described in this patent, if no special instructions, are mass content.
The technical indicator of described silica is: in silica, chemical composition mass content is: SiO
2>=98%, Fe
2o
3≤ 0.50%, Al
2o
3≤ 0.5%.
Described granularity is the silica of 2.18mm, refers to the minus mesh of the silica after with the roller pair breaking crusher machine of screen aperture 2.18mm screen cloth, but not by the part of screen aperture 1.65mm screen cloth.
Described granularity is the silica of 1.65mm, refers to the minus mesh of the silica after with the roller pair breaking crusher machine of screen aperture 1.65mm screen cloth, but not by the part of screen aperture 0.1mm screen cloth.
Described granularity is the silica of 0.1mm, refers to the minus mesh of the silica after with the roller pair breaking crusher machine of screen aperture 0.1mm screen cloth.
Described useless silicon-dioxide grog, refers to that the useless silica brick grog after fragmentation is with the minus mesh after the roller pair breaking crusher machine of screen aperture 2.18mm screen cloth, its quality SiO
2content>=94.5%.Useless silicon-dioxide grog add the volumetric expansion that effectively can reduce quartz crystal and transform, reduce silica brick crackle, improve yield rate, save energy.
Described useless silicon-dioxide grog, also can be the minus mesh of the silica brick of the component of following mass parts: granularity is 20 ~ 35 parts, the silica of 2.18mm, granularity is 40 ~ 50 parts, the silica of 1.65mm, 10 ~ 20 parts, granularity <0.1mm silica, paper pulp 0.5 ~ 1.5 part, composite additive 6 ~ 8% and special admixture 2.5 ~ 5 parts; Its SiO
2content>=94.5%.This silica brick is not except containing except the useless silicon-dioxide grog of hotblast stove silica brick, and method for cooking, paper pulp, composite additive and special admixture are all identical with hotblast stove silica brick, and preparation technology is consistent.
Concrete further, the temperature that hyperthermia tunnel Kiln burns till is: 1420 ~ 1460 DEG C.
Described composite additive is the mixture of lime, iron scale and water.This composite additive contributes to the adhesive property improving pug, is beneficial to shaping and burns till.More specifically, the mass component of composite additive is: CaO:24.0 ~ 28.0%, the content 3.5 ~ 6.0% of iron scale.
Described paper pulp act as organic bond, wherein K
2o+Na
2o≤1.2%, proportion 1.15 ~ 1.28, pH value 5.0 ~ 6.5.
Described special admixture is wilkinite, Ca(OH)
2the mixture of powder, clay, feldspar, the mass percentage shared by each component is: wilkinite: 20 ~ 55%, calcium hydroxide powder 20 ~ 55%, clay: 10 ~ 40%, Feldspar Powder: 5 ~ 30%.Stablize the transformation of crystal of silica when special admixture contributes to burning till, play the stress because of generation of expanding when suppressing adobe to be burnt till, prevent goods from loosening or cracking.
Preferred as such scheme, described bentonitic chemical composition content is: SiO
2: 55% ~ 80%, Al
2o
3: 5% ~ 25%, Fe
2o
3: 0.5% ~ 2.5%, K
2o+Na
2o≤3.5%.
Preferred as such scheme, the specification of described calcium hydroxide powder is: the composition mass percentage of calcium hydroxide powder is: Ca(OH)
2>=90%, granularity (180 order)>=90%;
Preferred as such scheme, the composition mass percentage of described Feldspar Powder is: K
2o:8 ~ 20%, Na2O≤8%, granularity is less than 0.088mm>=90%.
Preferred as such scheme, the composition mass percentage of described clay powder is: K
2o≤4%, Na
2o≤1.5%, Al
2o
3: 20% ~ 50%, granularity is less than 0.088mm>=90%, igloss≤20%.Described igloss refers to that clay powder is after heating, and moisture wherein and organism etc. volatilize away, is loss amount before and after heating.
Preferred as such scheme, the composition mass percentage of described iron scale is: F
2o
3+ FeO>=80%, granularity is less than 0.088mm>=85%.Iron scale described in this patent refers to the product of the oxide skin of steel rolling after fine powder is broken.
Preferred as such scheme, the composition mass percentage of described lime is: CaO >=80%, MgO≤10%, lumpiness 10 ~ 70mm, igloss≤20%.
Silica brick of the present invention is made up of silica, useless silica brick grog, composite additive and special admixture, proportioning meets closestpacking principle, through preparing burden, mixing, shaping, drying process, then after burning till, having excellent high-temperature behavior, is the silica brick that a kind of applicable hotblast stove uses.
Use the physical and chemical index of the hotblast stove silica brick obtained by formula of the present invention and preparation method to compare with standard YB/T133-2005 and see the following form 2.
Table 1.
Table 2 the present invention and do not add the hotblast stove silica brick Comparative result of useless silicon-dioxide grog.
| Project | Do not add the hotblast stove silica brick actual average value of useless silicon-dioxide grog | Actual average value of the present invention |
| Cracking breakout | 5% | 2% |
| Yield rate | 87.5% | 95.5% |
| The tridymite content that quartz crystal transforms | 55% | 68% |
In sum, the present invention compared with prior art, has following outstanding advantages and beneficial effect:
1, the present invention decreases the kind of admixture by adjustment composition of raw materials, simplifies production process, decreases production process error probability.
2, composition of raw materials of the present invention uses Ca(OH)
2powder replaces fluorite, has following advantage: 1. lime underground storage is compared fluorite underground storage and will be enriched, and exploitation is got up more convenient; 2. Ca(OH)
2powder market value is more cheap, can reduce production cost; 3. Ca(OH)
2in powder use procedure, fluorite is compared to human and environment far better.
3, in the present invention useless silicon-dioxide grog add the volumetric expansion that effectively can reduce quartz crystal and transform, reduce silica brick crackle, improve yield rate, save energy.
4, the adding of composite additive and special admixture in the present invention, contribute to the adhesive property improving pug, be beneficial to shaping, also contribute to the transformation of crystal stablizing silica when helping burn till, play the stress because of generation of expanding when suppressing adobe to be burnt till, prevent goods from loosening or cracking.
Embodiment
Below by embodiment, further explanation is explained to this patent.But the protection domain of this patent is not limited to concrete embodiment.
The starting pulps of this patent, its K
2o+Na
2o is 0.9%, proportion 1.18, pH value 5.5.
Embodiment 1
Hotblast stove silica brick, the weight percentage of contained component is: granularity is the silica 28% of 2.18mm, and granularity is silica 41%, the granularity <0.1mm silica 10% of 1.65mm, the useless silica brick grog of 10%, paper pulp 0.8%, composite additive 6.5% and special admixture 3.7%.Wherein SiO in silica
2content>=98%, Fe
2o
3content≤0.50%, Al
2o
3content≤0.5%.Useless brick grog is SiO
2content is not less than the useless silicon-dioxide grog of 94.5%.Composite additive add-on 6.5% is the mixture of lime, iron scale and water, CaO:25% in composite additive, the content 5% of iron scale; Special admixture add-on 3.7%, the mass percentage shared by each component is: wilkinite: 25%, calcium hydroxide powder 30%, clay: 20%, Feldspar Powder: 10%.The add-on of paper pulp is 0.8%.
Sintering technology is:
(1) silica, useless brick grog, special admixture is taken by the composition and ratio of the claims, be dry mixed evenly at edge runner-wet mill and become compound A, take a certain amount of composite additive pre-dispersed one-tenth slurry B in a certain amount of water by the composition and ratio of the claims, take a certain amount of paper pulp C by the composition and ratio of the claims;
(2) A, B, C are rolled in edge runner-wet mill mixing and become pug D in 20 minutes;
(3) by D compression moulding under 400 tons of nominal pressures;
(4) adobe shaping for step (3) being no more than 120 DEG C of temperature is dried to after residual water-content is not more than 1.0%, and in hyperthermia tunnel Kiln, 1420 DEG C of insulations are burnt till for 30 hours.
The hotblast stove silica brick prepared, the tridymite content that quartz crystal transforms is 65%, and silica brick cracking breakout is 2.2%, yield rate 95.0%.
Embodiment 2
Hotblast stove silica brick, the mass parts of contained component is: granularity is 30 parts, the silica of 2.18mm, and granularity is 28 parts, the silica of 1.65mm, 18 parts, granularity <0.1mm silica, the useless silica brick grog of 20 parts, paper pulp 1 part, composite additive 7.0 parts and special admixture 4.5 parts.Wherein SiO in silica
2content>=98%, Fe
2o
3content≤0.50%, Al
2o
3content≤0.5%.Useless brick grog is SiO
2content is not less than the useless silicon-dioxide grog of 94.5%.Composite additive add-on 7.0% is the mixture of lime, iron scale and water, CaO:27% in composite additive, the content 4% of iron scale; Special admixture 4.5%, the mass percentage shared by each component is: wilkinite: 35%, calcium hydroxide powder 35%, clay: 25%, Feldspar Powder: 20%.The add-on of paper pulp is 1.2%.Use calcium hydroxide powder powder to replace fluorite, cost is low, has no side effect, and preparation technology is simple, and product performance are excellent, is applicable to mass production.
Sintering technology is:
(1) silica, useless brick grog, special admixture is taken by the composition and ratio of the claims, be dry mixed evenly at edge runner-wet mill and become compound A, take a certain amount of composite additive pre-dispersed one-tenth slurry B in a certain amount of water by the composition and ratio of the claims, take a certain amount of paper pulp C by the composition and ratio of the claims;
(2) A, B, C are rolled in edge runner-wet mill mixing and become pug D in 20 minutes;
(3) by D compression moulding under 400 tons of nominal pressures;
(4) adobe shaping for step (3) being no more than 130 DEG C of temperature is dried to after residual water-content is not more than 1.0%, and in hyperthermia tunnel Kiln, 1450 DEG C of insulations are burnt till for 26 hours.
The hotblast stove silica brick prepared, the tridymite content that quartz crystal transforms is 70%, and silica brick cracking breakout is 1.8%.Yield rate 96.1%.
Comparative example 1
Hotblast stove silica brick, the weight percentage of contained component is: granularity is the silica 30% of 2.18mm, granularity is the silica 41.3% of 1.65mm, granularity <0.1mm silica 20%, paper pulp 1.0%, clay: 1.2%, Feldspar Powder: 1.0%, Fluorspar Powder: 1.5%, lime 2.0%, iron scale 1.0%: water 1.0%: wherein SiO in silica
2content>=98%, Fe
2o
3content≤0.50%, Al
2o
3content≤0.5%.
Preparation method is identical with embodiment 2.
The hotblast stove silica brick prepared, the tridymite content that quartz crystal transforms is 53%, and silica brick cracking breakout is 5.2%.Yield rate 86.8%.
Comparative example 2
Hotblast stove silica brick, the weight percentage of contained component is: granularity is the silica 26% of 2.18mm, granularity is the silica 40% of 1.65mm, granularity <0.1mm silica 25%, paper pulp 0.5%, clay: 1.0%, Feldspar Powder: 1.5%, Fluorspar Powder: 1.8%, lime 2.5%, iron scale 0.5%: water 1.2%: wherein SiO in silica
2content>=98%, Fe
2o
3content≤0.50%, Al
2o
3content≤0.5%.
Preparation method is identical with embodiment 1.
The hotblast stove silica brick prepared, the tridymite content that quartz crystal transforms is 59%, and silica brick cracking breakout is 5.0%, yield rate 87.8%.
Comparative example 3
Hotblast stove silica brick, the weight percentage of contained component is: granularity is the silica 26% of 2.18mm, granularity is the silica 35.5% of 1.65mm, granularity <0.1mm silica 25%, paper pulp 0.5%, clay: 1.0%, Feldspar Powder: 1.5%, Fluorspar Powder: 1.8%, lime 2.5%, iron scale 0.5%: water 1.2%: wherein SiO in silica
2content>=98%, Fe
2o
3content≤0.50%, Al
2o
3content≤0.5%.Special admixture add-on 3.7%, the mass percentage shared by each component is: wilkinite: 25%, calcium hydroxide powder 30%, clay: 20%, Feldspar Powder: 10%.The add-on of paper pulp is 0.8%.
Preparation method is identical with embodiment 1.
The hotblast stove silica brick prepared, the tridymite content that quartz crystal transforms is 61%, and silica brick cracking breakout is 4.2%, yield rate 89.8%.
Comparative example 4
Hotblast stove silica brick, the weight percentage of contained component is: granularity is the silica 30% of 2.18mm, granularity is the silica 45.6% of 1.65mm, granularity <0.1mm silica 20%, paper pulp 1.0%, clay: 1.2%, Feldspar Powder: 1.0%, Fluorspar Powder: 1.5%, lime 2.0%, iron scale 1.0%: water 1.0%: wherein SiO in silica
2content>=98%, Fe
2o
3content≤0.50%, Al
2o
3content≤0.5%.Special admixture 4.5%, the mass percentage shared by each component is: wilkinite: 35%, calcium hydroxide powder 35%, clay: 25%, Feldspar Powder: 20%.The add-on of paper pulp is 1.2%.
Preparation method is identical with embodiment 2.
The hotblast stove silica brick prepared, the tridymite content that quartz crystal transforms is 56%, and silica brick cracking breakout is 4.5%.Yield rate 88.6%.
Claims (8)
1. the preparation method of a hotblast stove silica brick, it is characterized in that: contained by hotblast stove silica brick, the weight percentage of component is: granularity is the silica 20 ~ 35% of 2.18mm, granularity is the silica 40 ~ 50% of 1.65mm, granularity <0.1mm silica 10 ~ 20%, useless silicon-dioxide grog 10 ~ 20%, paper pulp 0.5 ~ 1.5%, composite additive 6 ~ 8% and special admixture 2.5 ~ 5%; Composite additive is the mixture of lime, iron scale and water, and mass component is: CaO:24.0 ~ 28.0%, the content 3.5 ~ 6.0% of iron scale; Special admixture is wilkinite, Ca(OH)
2the mixture of powder, clay, feldspar, the mass percentage shared by each component is: wilkinite: 20 ~ 55%, calcium hydroxide powder 20 ~ 55%, clay: 10 ~ 40%, Feldspar Powder: 5 ~ 30%; Preparation technology is:
(1) silica, useless brick grog, special admixture is taken by the composition and ratio of the claims, be dry mixed evenly at edge runner-wet mill and become compound A, take a certain amount of composite additive pre-dispersed one-tenth slurry B in a certain amount of water by the composition and ratio of the claims, take a certain amount of paper pulp C by the composition and ratio of the claims;
(2) A, B, C are rolled in edge runner-wet mill mixing and become pug D in 20 minutes;
(3) by D compression moulding under 400 tons of nominal pressures;
(4), after brick bat drying to residual water-content shaping for step (3) being not more than 1.0%, in hyperthermia tunnel Kiln, 1420 ~ 1460 DEG C of insulations are burnt till for 26 ~ 30 hours.
2. the preparation method of hotblast stove silica brick according to claim 1, is characterized in that: the mode of brick bat drying is: be no more than 130 DEG C of temperature dryings.
3. the preparation method of hotblast stove silica brick according to any one of claim 1 or 2, is characterized in that: the technical indicator of described silica is: each chemical composition mass content of silica is: SiO
2>=98%, Fe
2o
3≤ 0.50%, Al
2o
3≤ 0.5%.
4. the preparation method of hotblast stove silica brick according to any one of claim 1 or 2, it is characterized in that: described granularity is the silica of 2.18mm, refer to the minus mesh of the silica after with the roller pair breaking crusher machine of screen aperture 2.18mm screen cloth, but not by the part of screen aperture 1.65mm screen cloth; Granularity is the silica of 1.65mm, refers to the minus mesh of the silica after with the roller pair breaking crusher machine of screen aperture 1.65mm screen cloth, but not by the part of screen aperture 0.1mm screen cloth; Granularity is the silica of 0.1mm, refers to the minus mesh of the silica after with the roller pair breaking crusher machine of screen aperture 0.1mm screen cloth.
5. the preparation method of hotblast stove silica brick according to any one of claim 1 or 2, it is characterized in that: described useless silicon-dioxide grog, refer to that the useless silica brick grog after fragmentation is with the minus mesh of the silica brick after the roller pair breaking crusher machine of screen aperture 2.18mm screen cloth, its quality SiO
2content>=94.5%.
6. the preparation method of hotblast stove silica brick according to any one of claim 1 or 2, it is characterized in that: described silicon-dioxide grog is the minus mesh of the silica brick of the component of following mass parts: granularity is 20 ~ 35 parts, the silica of 2.18mm, granularity is 40 ~ 50 parts, the silica of 1.65mm, 10 ~ 20 parts, granularity <0.1mm silica, paper pulp 0.5 ~ 1.5 part, composite additive 6 ~ 8% and special admixture 2.5 ~ 5 parts; Its SiO
2content>=94.5%.
7. the preparation method of hotblast stove silica brick according to any one of claim 1 or 2, is characterized in that: the composition mass percentage of described Feldspar Powder is: K
2o:8 ~ 20%, Na2O≤8%, the composition mass percentage that granularity is less than 0.088mm>=90% clay powder is: K
2o≤4%, Na
2o≤1.5%, Al
2o
3: 20% ~ 50%, granularity is less than 0.088mm>=90%, igloss≤20%.
8. the preparation method of hotblast stove silica brick according to any one of claim 1 or 2, is characterized in that: the composition mass percentage of described iron scale is: F
2o
3+ FeO>=80%, granularity is less than 0.088mm>=85%.
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|---|---|---|---|
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107188587A (en) * | 2017-07-19 | 2017-09-22 | 郑州安耐克实业有限公司 | The siliceous dry type ramming material of lightweight for hot-blast stove heat-insulation and heat-preservation |
| CN111995427A (en) * | 2020-08-20 | 2020-11-27 | 郑州东豫新材料科技有限公司 | Thermal shock resistant special-shaped bulk silica brick and preparation method thereof |
| CN112374875A (en) * | 2020-11-12 | 2021-02-19 | 郑州东豫新材料科技有限公司 | Silica brick based on tunnel kiln desulfurization solid waste reclaimed material as mineralizer and preparation method thereof |
| CN114262234A (en) * | 2021-12-31 | 2022-04-01 | 洛阳安耐克科技股份有限公司 | Ultra-dense silica brick for blast furnace and hot blast stove and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117950A (en) * | 1994-08-30 | 1996-03-06 | 黄立跃 | Clay refractory brick containing silica (silica sand, siliceous sand) component |
| CN101117293A (en) * | 2007-07-18 | 2008-02-06 | 山西盂县西小坪耐火材料有限公司 | Semi-silica brick for 7.63-meter coke oven |
| CN101117294A (en) * | 2007-07-18 | 2008-02-06 | 山西盂县西小坪耐火材料有限公司 | Silicon brick for 7-meter coke oven |
| CN101117292A (en) * | 2007-07-18 | 2008-02-06 | 山西盂县西小坪耐火材料有限公司 | Silicon brick for 7.63-meter coke oven |
| CN101597173A (en) * | 2009-07-17 | 2009-12-09 | 攀钢冶金材料有限责任公司 | Method for preparing refractory raw material by using corundum slag |
| CN102515801A (en) * | 2011-12-20 | 2012-06-27 | 浙江照山硅质耐火材料有限公司 | Silica brick for glass furnace |
| CN102992784A (en) * | 2012-11-15 | 2013-03-27 | 中钢集团耐火材料有限公司 | Homogeneous same-phase silica mud for large coke oven |
-
2015
- 2015-09-10 CN CN201510571656.3A patent/CN105036779B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117950A (en) * | 1994-08-30 | 1996-03-06 | 黄立跃 | Clay refractory brick containing silica (silica sand, siliceous sand) component |
| CN101117293A (en) * | 2007-07-18 | 2008-02-06 | 山西盂县西小坪耐火材料有限公司 | Semi-silica brick for 7.63-meter coke oven |
| CN101117294A (en) * | 2007-07-18 | 2008-02-06 | 山西盂县西小坪耐火材料有限公司 | Silicon brick for 7-meter coke oven |
| CN101117292A (en) * | 2007-07-18 | 2008-02-06 | 山西盂县西小坪耐火材料有限公司 | Silicon brick for 7.63-meter coke oven |
| CN101597173A (en) * | 2009-07-17 | 2009-12-09 | 攀钢冶金材料有限责任公司 | Method for preparing refractory raw material by using corundum slag |
| CN102515801A (en) * | 2011-12-20 | 2012-06-27 | 浙江照山硅质耐火材料有限公司 | Silica brick for glass furnace |
| CN102992784A (en) * | 2012-11-15 | 2013-03-27 | 中钢集团耐火材料有限公司 | Homogeneous same-phase silica mud for large coke oven |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107188587A (en) * | 2017-07-19 | 2017-09-22 | 郑州安耐克实业有限公司 | The siliceous dry type ramming material of lightweight for hot-blast stove heat-insulation and heat-preservation |
| CN111995427A (en) * | 2020-08-20 | 2020-11-27 | 郑州东豫新材料科技有限公司 | Thermal shock resistant special-shaped bulk silica brick and preparation method thereof |
| CN112374875A (en) * | 2020-11-12 | 2021-02-19 | 郑州东豫新材料科技有限公司 | Silica brick based on tunnel kiln desulfurization solid waste reclaimed material as mineralizer and preparation method thereof |
| CN114262234A (en) * | 2021-12-31 | 2022-04-01 | 洛阳安耐克科技股份有限公司 | Ultra-dense silica brick for blast furnace and hot blast stove and preparation method thereof |
| CN114262234B (en) * | 2021-12-31 | 2023-07-04 | 洛阳安耐克科技股份有限公司 | Special dense silica brick for blast furnace hot blast stove and preparation method thereof |
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