CN106946554A - A kind of anhydrous stemming - Google Patents
A kind of anhydrous stemming Download PDFInfo
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- CN106946554A CN106946554A CN201710207793.8A CN201710207793A CN106946554A CN 106946554 A CN106946554 A CN 106946554A CN 201710207793 A CN201710207793 A CN 201710207793A CN 106946554 A CN106946554 A CN 106946554A
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- alumine
- anhydrous stemming
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- 239000000843 powder Substances 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 24
- HIGRAKVNKLCVCA-UHFFFAOYSA-N alumine Chemical compound C1=CC=[Al]C=C1 HIGRAKVNKLCVCA-UHFFFAOYSA-N 0.000 claims abstract description 23
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000007767 bonding agent Substances 0.000 claims abstract description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 239000010703 silicon Substances 0.000 claims abstract description 12
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims abstract description 11
- INJRKJPEYSAMPD-UHFFFAOYSA-N aluminum;silicic acid;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O INJRKJPEYSAMPD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000010426 asphalt Substances 0.000 claims abstract description 11
- 239000000440 bentonite Substances 0.000 claims abstract description 11
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 11
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000010443 kyanite Substances 0.000 claims abstract description 11
- 229910052850 kyanite Inorganic materials 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004927 clay Substances 0.000 claims abstract description 10
- 239000010439 graphite Substances 0.000 claims abstract description 10
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 10
- 239000006260 foam Substances 0.000 claims abstract description 9
- 229910052570 clay Inorganic materials 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims 1
- 239000000976 ink Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 34
- 229910052742 iron Inorganic materials 0.000 abstract description 17
- 239000002893 slag Substances 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000010079 rubber tapping Methods 0.000 description 12
- 238000001514 detection method Methods 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004939 coking Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000012615 aggregate Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention discloses a kind of anhydrous stemming, its raw material composition is：Granularity for 2 0mm burnt foam 7% 10%, granularity for 200 mesh sericite 5% 10%, alumina powder 3% 5%, granularity for 200 mesh carborundum 5% 10%, granularity for 3 1mm alumine 10% 15%, granularity for 1 0mm alumine 10% 15%, granularity for 200 mesh alumine 5% 10%, granularity for 200 mesh Brown Alundum 5% 10%, granularity for 200 mesh metallic silicon power 2% 4%, asphalt powder 4% 6%, granularity for 40 70 mesh kyanite 2% 4%, amorphous graphite 2% 4%, clay 5% 10%, bentonite 5% 10% and ferro-silicon nitride 5% 10%, the additional bonding agent for accounting for above-mentioned raw materials gross weight 10% 15%.There is the anhydrous stemming excellent resistance to slag iron to wash away and corrosion-resistant property.
Description
Technical field
The invention belongs to fire resisting material field, and in particular to a kind of blast furnace iron notch blister mud.
Background technology
Stemming is the refractory material for blocking blast furnace tapping hole, and hydrous taphole loam and anhydrous stemming two can be divided at present
Major class, the former is used in, and top pressure is relatively low, and the not high medium and small blast furnace of strengthening smelting degree, the latter is higher in top pressure, strengthening smelting journey
On the high big-and-middle-sized blast furnace of degree.Blast furnace tapping hole is the throat that blast furnace discharges molten iron, as blast furnace process is continually strengthened, existing
Maximization, long service life for blast furnace, tapping duration growth and the increase of slag iron flow, to the steady of blast furnace iron notch working condition
Fixed and maintenance proposes higher requirement.The key for maintaining smooth operation of furnace high yield is that tapping hole is in stable condition, and the performance of stemming
It is the key for ensureing tapping hole steady operation.Therefore, as blast furnace process produces the increase of intensity, to tapping hole stemming quality
It is required that also more and more higher.
The function of stemming should fill up tapping hole passage, form mud drum in cupola well again, maintain enough tapping hole depths
Degree；Also easily to be open simultaneously, also easily play mud operation, the physics and chemical erosion produced to slag, iron has repellence.Cause
This, in order that tapping hole stable working state, the need for meeting intensification of smelting process in BF, it is desirable to which tapping hole stemming should have enough resistance to
Fiery degree, the suitable porosity, and stronger iron-resistant water washes away, erosiveness, while also to there is preferable gas permeability, it is easy to dry
Do and do not ftracture, sintering character is good, intensity is high, opening performance is good, and environmental pollution is small, also to there is appropriate plasticity etc..It is existing
Anhydrous stemming for blast furnace slag resistance, resistance to elevated temperatures and corrosion-resistant property it is poor, easily occur Chao Tiekou, shallow iron when using
The problems such as mouth, disconnected iron mouthful, race are flowed greatly, depressurized, leaking informaton, burning out casthouse equipment, influence is produced.Therefore, it is of the invention from different fire resistings
The characteristic of material is started with, and the raw material of stemming is constituted and proportioning is studied that there is provided a kind of anhydrous stemming of function admirable.
The content of the invention
It is an object of the invention to provide a kind of blister mud of blast furnace iron notch.The anhydrous stemming coking is fast, and intensity is high,
With the excellent performance of flushing of resistance to slag iron, corrosion-resistant property and slag resistance.
To realize above-mentioned goal of the invention, the technical solution adopted by the present invention is as follows：
A kind of anhydrous stemming, is represented with weight percentage, and the raw material composition of the anhydrous stemming is：Granularity is 2-0mm
Burnt foam 7%-10%, the sericite 5%-10% that granularity is 200 mesh, alumina powder 3%-5%, the carbonization that granularity is 200 mesh
Alumine 10%-15% that alumine 10%-15% that silicon 5%-10%, granularity are 3-1mm, granularity are 1-0mm, grain
Degree is the alumine 5%-10% of 200 mesh, granularity is 200 mesh Brown Alundum 5%-10%, the metallic silicon that granularity is 200 mesh
Powder 2%-4%, asphalt powder 4%-6%, granularity are the kyanite 2%-4%, amorphous graphite 2%-4%, clay 5%- of 40-70 mesh
10%th, bentonite 5%-10% and ferro-silicon nitride 5%-10%, the additional bonding agent for accounting for above-mentioned raw materials gross weight 10%-15%.
According to above-mentioned anhydrous stemming, the bonding agent is tar.
The preparation method of the anhydrous stemming, comprises the following steps：
(1) each raw material is weighed by the raw material composition and ratio of anhydrous stemming, it is standby；(2) bonding agent is heated to 70-75
DEG C, insulation；(3) by alumine, sericite, alumina powder, carborundum, Brown Alundum, metallic silicon power, asphalt powder, kyanite, soil
Shape graphite, clay, bentonite and ferro-silicon nitride are added in mixer, and 70-75 DEG C is uniformly mixed, and obtains compound；(4)
Then the bonding agent added into compound after step (2) processing, mixed grind 25-35min discharges to mud extruder, is squeezed into
Type is to obtain anhydrous stemming.
The positive beneficial effect that the present invention is obtained：
(1) present invention is by scientific research, analysis, and rationally the consumption proportion of aggregate and powder, particle diameter divide in design raw material
Match somebody with somebody, prepared a kind of anhydrous stemming, the anhydrous stemming coking is fast, compact structure, elevated temperature strength is high, and anti-slag water, molten iron are invaded
Corrosion can be good, and flushing resistance is excellent, extends tapping duration.
(2) anhydrous stemming plasticity of the present invention is good, with good opening transaction capabilities, without disconnected iron mouthful, shallow iron lip reflex,
Not reaming, not splash forms mud drum well, iron mouthful depth can be maintained not reduce, tapping molten iron is stable.
The performance detection parameter of the anhydrous stemming of the present invention of table 1
(3) the performance detection parameter of anhydrous stemming of the present invention is shown in Table 1, by table 1 it is also seen that Lai anhydrous stemming of the present invention
Rupture strength and compressive resistance be substantially higher in traditional stemming, with excellent anti-slag water, molten iron erosion performance and resistance to punching
Brush performance.
Embodiment
The present invention is described in further detail below by way of specific embodiment, but is not intended to limit the protection model of the present invention
Enclose.
Embodiment 1：
A kind of anhydrous stemming, is represented with weight percentage, and the raw material composition of the anhydrous stemming is：Granularity is 2-0mm
Burnt foam 7%, the sericite 8% that granularity is 200 mesh, alumina powder 3%, the carborundum 5% that granularity is 200 mesh, granularity be 3-
Alumine 15% that 1mm alumine 10%, granularity are 1-0mm, the alumine 8% that granularity is 200 mesh, granularity are
The Brown Alundum 8% of 200 mesh, granularity be the metallic silicon powers 2% of 200 mesh, asphalt powder 4%, the kyanite 2% that granularity is 40-70 mesh,
Amorphous graphite 2%, clay 8%, bentonite 8% and ferro-silicon nitride 10%, the additional bonding agent for accounting for above-mentioned raw materials gross weight 10%, institute
Bonding agent is stated for tar.
Embodiment 2：
A kind of anhydrous stemming, is represented with weight percentage, and the raw material composition of the anhydrous stemming is：Granularity is 2-0mm
Burnt foam 10%, the sericite 5% that granularity is 200 mesh, alumina powder 4%, the carborundum 8% that granularity is 200 mesh, granularity be 3-
Alumine 12% that 1mm alumine 12%, granularity are 1-0mm, the alumine 5% that granularity is 200 mesh, granularity are
The Brown Alundum 10% of 200 mesh, granularity are the metallic silicon power 3%, asphalt powder 5%, the kyanite that granularity is 40-70 mesh of 200 mesh
3%th, amorphous graphite 2%, clay 5%, bentonite 10% and ferro-silicon nitride 6%, the additional combination for accounting for above-mentioned raw materials gross weight 12%
Agent, the bonding agent is tar.
Embodiment 3：
A kind of anhydrous stemming, is represented with weight percentage, and the raw material composition of the anhydrous stemming is：Granularity is 2-0mm
Burnt foam 8%, the sericite 10% that granularity is 200 mesh, alumina powder 5%, the carborundum 5% that granularity is 200 mesh, granularity be 3-
Alumine 10% that 1mm alumine 15%, granularity are 1-0mm, the alumine 10% that granularity is 200 mesh, granularity are
The Brown Alundum 5% of 200 mesh, granularity be the metallic silicon powers 4% of 200 mesh, asphalt powder 4%, the kyanite 3% that granularity is 40-70 mesh,
Amorphous graphite 3%, clay 5%, bentonite 5% and ferro-silicon nitride 8%, the additional bonding agent for accounting for above-mentioned raw materials gross weight 15%, institute
Bonding agent is stated for tar.
Embodiment 4：
A kind of anhydrous stemming, is represented with weight percentage, and the raw material composition of the anhydrous stemming is：Granularity is 2-0mm
Burnt foam 8%, the sericite 8% that granularity is 200 mesh, alumina powder 3%, the carborundum 10% that granularity is 200 mesh, granularity be 3-
Alumine 12% that 1mm alumine 10%, granularity are 1-0mm, the alumine 10% that granularity is 200 mesh, granularity are
The Brown Alundum 5% of 200 mesh, granularity be the metallic silicon powers 2% of 200 mesh, asphalt powder 6%, the kyanite 4% that granularity is 40-70 mesh,
Amorphous graphite 2%, clay 10%, bentonite 5% and ferro-silicon nitride 5%, the additional bonding agent for accounting for above-mentioned raw materials gross weight 12%, institute
Bonding agent is stated for tar.
Embodiment 5：
A kind of anhydrous stemming, is represented with weight percentage, and the raw material composition of the anhydrous stemming is：Granularity is 2-0mm
Burnt foam 10%, the sericite 6% that granularity is 200 mesh, alumina powder 4%, the carborundum 5% that granularity is 200 mesh, granularity be 3-
Alumine 12% that 1mm alumine 15%, granularity are 1-0mm, the alumine 7% that granularity is 200 mesh, granularity are
The Brown Alundum 10% of 200 mesh, granularity are the metallic silicon power 3%, asphalt powder 5%, the kyanite that granularity is 40-70 mesh of 200 mesh
2%th, amorphous graphite 4%, clay 6%, bentonite 6% and ferro-silicon nitride 5%, the additional combination for accounting for above-mentioned raw materials gross weight 10%
Agent, the bonding agent is tar.
Embodiment 6：
A kind of anhydrous stemming, is represented with weight percentage, and the raw material composition of the anhydrous stemming is：Granularity is 2-0mm
Burnt foam 6%, the sericite 5% that granularity is 200 mesh, alumina powder 5%, the carborundum 8% that granularity is 200 mesh, granularity be 3-
Alumine 10% that 1mm alumine 12%, granularity are 1-0mm, the alumine 8% that granularity is 200 mesh, granularity are
The Brown Alundum 6% of 200 mesh, granularity be the metallic silicon powers 4% of 200 mesh, asphalt powder 4%, the kyanite 2% that granularity is 40-70 mesh,
Amorphous graphite 4%, clay 8%, bentonite 10% and ferro-silicon nitride 8%, the additional bonding agent for accounting for above-mentioned raw materials gross weight 15%, institute
Bonding agent is stated for tar.
The performance detection parameter of anhydrous stemming described in embodiment of the present invention 1-6 is shown in Table 2.
The performance detection parameter of anhydrous stemming described in the embodiment of the present invention 1-6 of table 2
Claims (3)
1. a kind of anhydrous stemming, it is characterised in that represented with weight percentage, the raw material of the anhydrous stemming, which is constituted, is：Grain
Burnt foam 7%-10% that degree is 2-0mm, the sericite 5%-10% that granularity is 200 mesh, alumina powder 3%-5%, granularity are 200
The alumine 10%- that alumine 10%-15% that purpose carborundum 5%-10%, granularity are 3-1mm, granularity are 1-0mm
15%th, granularity is the alumine 5%-10% of 200 mesh, granularity is 200 mesh Brown Alundum 5%-10%, granularity are 200 purposes
Metallic silicon power 2%-4%, asphalt powder 4%-6%, granularity are the kyanite 2%-4% of 40-70 mesh, amorphous graphite 2%-4%, glutinous
Native 5%-10%, bentonite 5%-10% and ferro-silicon nitride 5%-10%, the additional combination for accounting for above-mentioned raw materials gross weight 10%-15%
Agent.
2. anhydrous stemming according to claim 1, it is characterised in that the bonding agent is tar.
3. a kind of preparation method of anhydrous stemming, it is characterised in that comprise the following steps：
(1) the raw material composition of the anhydrous stemming as described in claim 1 weighs each raw material, standby；
(2) bonding agent is heated to 70-75 DEG C, insulation；
(3) by alumine, sericite, alumina powder, carborundum, Brown Alundum, metallic silicon power, asphalt powder, kyanite, earthy stone
Ink, clay, bentonite and ferro-silicon nitride are added in mixer, and 70-75 DEG C is uniformly mixed, and obtains compound；
(4) bonding agent is added into compound, then mixed grind 25-35min discharges to mud extruder, extrusion forming produces no water cannon
Mud.
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| CN108218393A (en) * | 2017-12-14 | 2018-06-29 | 中国地质大学（北京） | It is a kind of to prepare Al using gangue2O3The method of-SiC-C systems stemming fire-proof material |
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| CN110803916A (en) * | 2019-10-17 | 2020-02-18 | 安徽海螺暹罗耐火材料有限公司 | High-strength wear-resistant silicon mullite brick and preparation method thereof |
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