CN104003738B - Smelting separation furnace lining material and preparation method thereof - Google Patents
Smelting separation furnace lining material and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a smelting separation furnace lining material and a preparation method thereof. According to the technical scheme, the preparation method of the smelting separation furnace lining material comprises the following steps: mixing 48-60wt% of magnesite particles and 10-22wt% of silicon carbide particles, adding 3-4wt% of phenolic resin, mixing, then adding mixed powder, mixing, moulding, and then drying for 24 hours at the temperature of 180-220 DEG C, so that the melting separation furnace lining material is obtained; the mixed powder is obtained by mixing 10-15wt% of Ti(C,N)-SiC-C composite powder, 4-7wt% of magnesite fine powder, 1-3wt% of silicon carbide fine powder, 2-3wt% of crystalline flake graphite fine powder, 0.5-1wt% of carbon black, 1-3wt% of alpha-Al2O3 micro powder, 0.5-1.5wt% of asphalt powder, 2-4wt% of Si powder and 0.5-1wt% of B4C powder. The smelting separation furnace lining material has the characteristics of high temperature resistance, washing resistance, strong FeO and TiO2 corrosion resistance, good oxidation resistance and excellent thermal shock performance.
Description
Technical field
The invention belongs to furnace lining material technical field.Particularly relate to a kind of molten point furnace lining material and preparation method thereof.
Background technology
China's Panxi Diqu has abundant vanadium and titanium resources, climbs the existing technique of steel and mainly adopts the recovery of blast furnace-converter flow process Fe and V, Ti then to enter blast furnace slag.Due to the introducing of slag former in smelting process, TiO in steel climbing high slag
2content generally at about 20wt%, and mainly exists with forms such as titanaugite, Ba Yishi (rich titandiopside), uhligite, magnesium anosovites, and titanium resource comprehensive utilization ratio is always not high.2010, climb steel and build up vanadium and titanium resources comprehensive utilization pilot scale line, employing rotary hearth furnace direct-reduction-melt a point electric furnace deeply to reduce-vanadium-bearing hot metal vanadium extraction-Ti-containing slag proposed titanium technical process; This novel process for raw material with sefstromite concentrate, common coal dust, binding agent, is pressed into carbon-burdened pellet by cold consolidation pressure forming machine, is directly reduced to metallized pellet through rotary hearth furnace, and feeding electric furnace carries out fusing and is separated into vanadium-bearing hot metal and titanium slag.Wherein molten point of high titanium metal pellet is the main equipment of sliver with electric furnace (hereinafter referred to as " molten point stove "), this equipment melts the metallized pellet that rotary hearth furnace is produced, barium oxide in slag is reduced deeply, v element is made to enter molten iron, realize being separated of Ti-containing slag and vanadium-bearing hot metal, simultaneously TiO in Ti-containing slag
2content is expected to reach more than 40wt%, is conducive to the recycling of titanium resource.
The Working environment melting point stove due to high titanium metal pellet is very special, require that being used for its fire proof material of furnace lining not only will possess high temperature resistant, resistance to erosion, excellent thermal shock resistance and oxidation-resistance, and very strong slag corrosion resistance ability will be had, especially want to resist (FeO) and (TiO in slag
2) erosion.At present, climb the molten point stove working lining of steel and adopt magnesia carbon brick.But, there is the too fast problem of working lining Corrosion rate since molten point stove self-operating, particularly in slag line, three-phase electrode behind and the position such as iron notch, slag notch always.
Summary of the invention
The present invention is intended to overcome prior art defect, and object is to provide a kind of high temperature resistant, resistance to erosion, anti-(FeO) and (TiO
2) strong, the good in oxidation resistance of erosional competency and molten point furnace lining material and preparation method thereof of good in thermal shock.
For achieving the above object, in the technical solution used in the present invention, raw material and the content thereof of described molten point furnace lining material are:
The preparation method of molten point furnace lining material is: prepare burden by above-mentioned raw materials and content thereof; First by magnesia particle and silicon-carbide particle mixing 3 ~ 5 minutes, add resol mixing 4 ~ 7 minutes, then add powder mix, mixing 12 ~ 18 minutes, shaping, then under 180 ~ 220 DEG C of conditions dry 24 hours, a point furnace lining material must be melted.
Described powder mix is by Ti (C, N)-SiC-C composite powder, magnesia powder, carbide fine powder, crystalline flake graphite fine powder, carbon black, α-Al
2o
3micro mist, asphalt powder, Si powder and B
4c powder mixes, and mixing time is 3 ~ 5 minutes.
The preparation method of described Ti (C, N)-SiC-C composite powder is: first by broken for molten for high titanium point slag, deironing, be milled to particle diameter≤0.15mm, obtain the molten point ground-slag material of high titanium, then be that 4 ~ 6:1 prepares burden in mass ratio by molten for high titanium point ground-slag material and carbon black, mill, obtains common abrasive dust altogether; Then by common abrasive dust at 1350 ~ 1450 DEG C with to bury under carbon condition thermal treatment 3 ~ 5 hours, levigate to particle diameter≤0.088mm, obtained Ti (C, N)-SiC-C composite powder.
Content of MgO >=98wt% in described magnesia particle; Wherein: particle diameter is that the magnesia particle of 5 ~ 3mm accounts for 36 ~ 45wt%, particle diameter is that the magnesia particle of 3 ~ 1mm accounts for 30 ~ 40wt%, and particle diameter is that the magnesia particle of 1 ~ 0.1mm accounts for 15 ~ 28wt%.
SiC content >=97wt% in described silicon-carbide particle; Wherein: particle diameter is that the silicon-carbide particle of 3 ~ 1mm accounts for 30 ~ 40wt%, particle diameter is that the silicon-carbide particle of 1 ~ 0.1mm accounts for 55 ~ 75wt%.
C content >=97wt% in described crystalline flake graphite fine powder, granularity < 0.075mm.
Described shaping pressure is 100 ~ 150MPa.
The composition that described high titanium melts point slag is: TiO
2be 32 ~ 48wt%, SiO
2be 12 ~ 21wt%, MgO be 10 ~ 18wt%, Al
2o
3be 9 ~ 17wt%, CaO be 3 ~ 5wt%, FeO be 1 ~ 3wt%, other components are 2 ~ 5wt%.
The softening temperature of described asphalt powder is 90 ~ 120 DEG C, ash oontent < 0.5wt%, moisture content < 5wt%.
Owing to adopting technique scheme, the present invention compared with prior art has following positively effect:
Ti (C, N) is difficult to be melted a point slag and soaks, and introduces the corrosion resistance that Ti (C, N) can improve molten point furnace lining material in theory.But pure Ti (C, N) raw materials cost is high, and be in use easy to oxidation generation TiO
2, TiO
2can be reacted with the MgO in magnesian generation magnesium titanate further, and when temperature is down to below 1200 DEG C, the decomposition of magnesium titanate brings certain negative impact to the volume stability of material.The present invention adopts carbothermal method to process the molten point slag of high titanium, both make use of the molten point slag of a part of high titanium, and can obtain comparatively at an easy rate containing Ti (C, N) composite granule; Because the carbon black add-on in the present invention is comparatively large, part SiO
2change into SiC, Ti (C, the N) crystal grain simultaneously generated less and wrap up by other thing phases, substantially reduce the probability that Ti (C, N) is oxidized.Even if in this composite granule outside Ti (C, N), SiC and remaining carbon black, also there are other impurity phases, but their composition still has certain similarity with a molten point slag, can play the effect delaying molten point slag and spread to material internal.
The silicon carbide thermal conductivity that the present invention adopts high, anti-(FeO) and (TiO
2) erosional competency strong, and its oxidation-resistance is obviously better than carbon raw, and especially most of silicon carbide is introduced with the form of aggregate, also improves oxidation-resistance and the thermal shock resistance of integral material while raising material corrosion resistance.Carbon in usual Magnesia-carbon material is introduced with crystalline flake graphite form, and its add-on is generally at 12 ~ 18wt%, and the cold crushing strength when 200 DEG C × 24h is generally at about 35MPa.In the present invention, crystalline flake graphite fine powder add-on is only 2 ~ 3wt%, the processability of material is significantly improved, cold crushing strength when 200 DEG C × 24h is at more than 50MPa, and also introduce the higher carbon black of a certain amount of activity in material and pitch also can be transformed into high-activity carbon in materials'use process, these high-activity carbons and Si powder react, and can promote the intensity of material further, thus improve the erosion resistibility of material.
The molten point volume density of furnace lining material when 200 DEG C × 24h obtained by the present invention is 2.90 ~ 3.10g/cm
3, cold crushing strength when apparent porosity is 6 ~ 8%, 200 DEG C × 24h is 56 ~ 68MPa; Scouring test is carried out, without obviously infiltration and erosion under 1600 DEG C × 0.5h air atmosphere; Carry out Oxidation Resistance Test under 1000 DEG C × 3h air atmosphere, antioxidant property is good; At 1100 DEG C, thermal shock resistance can be good.
Therefore, the molten point of furnace lining material that prepared by the present invention has high temperature resistant, resistance to erosion, anti-(FeO) and (TiO
2) strong, the good in oxidation resistance of erosional competency and the feature of good in thermal shock.
Embodiment
By following examples, design of the present invention and the principles of science are described, but should think that the present invention is only limitted to material involved in following embodiment and composition.
For avoiding repetition, first by as follows for the raw material Unify legislation involved by this embodiment, repeat no more in embodiment.
The preparation method of described Ti (C, N)-SiC-C composite powder is: first by broken for molten for high titanium point slag, deironing, be milled to particle diameter≤0.15mm, obtain the molten point ground-slag material of high titanium, then be that 4 ~ 6:1 prepares burden in mass ratio by molten for high titanium point ground-slag material and carbon black, mill, obtains common abrasive dust altogether; Then by common abrasive dust at 1350 ~ 1450 DEG C with to bury under carbon condition thermal treatment 3 ~ 5 hours, levigate to particle diameter≤0.088mm, obtained Ti (C, N)-SiC-C composite powder.
Content of MgO >=98wt% in described magnesia particle; Wherein: particle diameter is that the magnesia particle of 5 ~ 3mm accounts for 36 ~ 45wt%, particle diameter is that the magnesia particle of 3 ~ 1mm accounts for 30 ~ 40wt%, and particle diameter is that the magnesia particle of 1 ~ 0.1mm accounts for 15 ~ 28wt%.
SiC content >=97wt% in described silicon-carbide particle; Wherein: particle diameter is that the silicon-carbide particle of 3 ~ 1mm accounts for 30 ~ 40wt%, particle diameter is that the silicon-carbide particle of 1 ~ 0.1mm accounts for 55 ~ 75wt%.
C content >=97wt% in described crystalline flake graphite fine powder, granularity < 0.075mm.
Described shaping pressure is 100 ~ 150MPa.
The composition that described high titanium melts point slag is: TiO
2be 32 ~ 48wt%, SiO
2be 12 ~ 21wt%, MgO be 10 ~ 18wt%, Al
2o
3be 9 ~ 17wt%, CaO be 3 ~ 5wt%, FeO be 1 ~ 3wt%, other components are 2 ~ 5wt%.
The softening temperature of described asphalt powder is 90 ~ 120 DEG C, ash oontent < 0.5wt%, moisture content < 5wt%.
Embodiment 1
A kind of molten point furnace lining material and preparation method thereof.Raw material and the content thereof of described molten point furnace lining material are:
The preparation method of molten point furnace lining material is: prepare burden by above-mentioned raw materials and content thereof; First by magnesia particle and silicon-carbide particle mixing 3 ~ 5 minutes, add resol mixing 4 ~ 7 minutes, then add powder mix, mixing 12 ~ 18 minutes, shaping, then under 180 ~ 220 DEG C of conditions dry 24 hours, a point furnace lining material must be melted.
Described powder mix is by Ti (C, N)-SiC-C composite powder, magnesia powder, carbide fine powder, crystalline flake graphite fine powder, carbon black, α-Al
2o
3micro mist, asphalt powder, Si powder and B
4c powder mixes, and mixing time is 3 ~ 5 minutes.
The molten point volume density of furnace lining material when 200 DEG C × 24h obtained by the present embodiment 1 is 2.90 ~ 2.95g/cm
3, cold crushing strength when apparent porosity is 7 ~ 8%, 200 DEG C × 24h is 56 ~ 60MPa; Scouring test is carried out, without obviously infiltration and erosion under 1600 DEG C × 0.5h air atmosphere; Carry out Oxidation Resistance Test under 1000 DEG C × 3h air atmosphere, antioxidant property is good; At 1100 DEG C, thermal shock resistance can be good.
Embodiment 2
A kind of molten point furnace lining material and preparation method thereof.Raw material and the content thereof of described molten point furnace lining material are:
The preparation method of molten point furnace lining material is: prepare burden by above-mentioned raw materials and content thereof; First by magnesia particle and silicon-carbide particle mixing 3 ~ 5 minutes, add resol mixing 4 ~ 7 minutes, then add powder mix, mixing 12 ~ 18 minutes, shaping, then under 180 ~ 220 DEG C of conditions dry 24 hours, a point furnace lining material must be melted.
Described powder mix is by Ti (C, N)-SiC-C composite powder, magnesia powder, carbide fine powder, crystalline flake graphite fine powder, carbon black, α-Al
2o
3micro mist, asphalt powder, Si powder and B
4c powder mixes, and mixing time is 3 ~ 5 minutes.
The molten point volume density of furnace lining material when 200 DEG C × 24h obtained by the present embodiment 2 is 2.95 ~ 3.00g/cm
3, cold crushing strength when apparent porosity is 6 ~ 7%, 200 DEG C × 24h is 60 ~ 64MPa; Scouring test is carried out, without obviously infiltration and erosion under 1600 DEG C × 0.5h air atmosphere; Carry out Oxidation Resistance Test under 1000 DEG C × 3h air atmosphere, antioxidant property is good; At 1100 DEG C, thermal shock resistance can be good.
Embodiment 3
A kind of molten point furnace lining material and preparation method thereof.Raw material and the content thereof of described molten point furnace lining material are:
The preparation method of molten point furnace lining material is: prepare burden by above-mentioned raw materials and content thereof; First by magnesia particle and silicon-carbide particle mixing 3 ~ 5 minutes, add resol mixing 4 ~ 7 minutes, then add powder mix, mixing 12 ~ 18 minutes, shaping, then under 180 ~ 220 DEG C of conditions dry 24 hours, a point furnace lining material must be melted.
Described powder mix is by Ti (C, N)-SiC-C composite powder, magnesia powder, carbide fine powder, crystalline flake graphite fine powder, carbon black, α-Al
2o
3micro mist, asphalt powder, Si powder and B
4c powder mixes, and mixing time is 3 ~ 5 minutes.
The molten point volume density of furnace lining material when 200 DEG C × 24h obtained by the present embodiment 3 is 3.00 ~ 3.05g/cm
3, cold crushing strength when apparent porosity is 7 ~ 8%, 200 DEG C × 24h is 60 ~ 64MPa; Scouring test is carried out, without obviously infiltration and erosion under 1600 DEG C × 0.5h air atmosphere; Carry out Oxidation Resistance Test under 1000 DEG C × 3h air atmosphere, antioxidant property is good; At 1100 DEG C, thermal shock resistance can be good.
Embodiment 4
A kind of molten point furnace lining material and preparation method thereof.Raw material and the content thereof of described molten point furnace lining material are:
The preparation method of molten point furnace lining material is: prepare burden by above-mentioned raw materials and content thereof; First by magnesia particle and silicon-carbide particle mixing 3 ~ 5 minutes, add resol mixing 4 ~ 7 minutes, then add powder mix, mixing 12 ~ 18 minutes, shaping, then under 180 ~ 220 DEG C of conditions dry 24 hours, a point furnace lining material must be melted.
Described powder mix is by Ti (C, N)-SiC-C composite powder, magnesia powder, carbide fine powder, crystalline flake graphite fine powder, carbon black, α-Al
2o
3micro mist, asphalt powder, Si powder and B
4c powder mixes, and mixing time is 3 ~ 5 minutes.
The molten point volume density of furnace lining material when 200 DEG C × 24h obtained by the present embodiment 4 is 3.05 ~ 3.10g/cm
3, cold crushing strength when apparent porosity is 6 ~ 7%, 200 DEG C × 24h is 64 ~ 68MPa; Scouring test is carried out, without obviously infiltration and erosion under 1600 DEG C × 0.5h air atmosphere; Carry out Oxidation Resistance Test under 1000 DEG C × 3h air atmosphere, antioxidant property is good; At 1100 DEG C, thermal shock resistance can be good.
Embodiment 5
A kind of molten point furnace lining material and preparation method thereof.Raw material and the content thereof of described molten point furnace lining material are:
The preparation method of molten point furnace lining material is: prepare burden by above-mentioned raw materials and content thereof; First by magnesia particle and silicon-carbide particle mixing 3 ~ 5 minutes, add resol mixing 4 ~ 7 minutes, then add powder mix, mixing 12 ~ 18 minutes, shaping, then under 180 ~ 220 DEG C of conditions dry 24 hours, a point furnace lining material must be melted.
Described powder mix is by Ti (C, N)-SiC-C composite powder, magnesia powder, carbide fine powder, crystalline flake graphite fine powder, carbon black, α-Al
2o
3micro mist, asphalt powder, Si powder and B
4c powder mixes, and mixing time is 3 ~ 5 minutes.
The molten point volume density of furnace lining material when 200 DEG C × 24h obtained by the present embodiment 5 is 2.90 ~ 3.00g/cm
3, cold crushing strength when apparent porosity is 7 ~ 8%, 200 DEG C × 24h is 56 ~ 60MPa; Scouring test is carried out, without obviously infiltration and erosion under 1600 DEG C × 0.5h air atmosphere; Carry out Oxidation Resistance Test under 1000 DEG C × 3h air atmosphere, antioxidant property is good; At 1100 DEG C, thermal shock resistance can be good.
Embodiment 6
A kind of molten point furnace lining material and preparation method thereof.Raw material and the content thereof of described molten point furnace lining material are:
The preparation method of molten point furnace lining material is: prepare burden by above-mentioned raw materials and content thereof; First by magnesia particle and silicon-carbide particle mixing 3 ~ 5 minutes, add resol mixing 4 ~ 7 minutes, then add powder mix, mixing 12 ~ 18 minutes, shaping, then under 180 ~ 220 DEG C of conditions dry 24 hours, a point furnace lining material must be melted.
Described powder mix is by Ti (C, N)-SiC-C composite powder, magnesia powder, carbide fine powder, crystalline flake graphite fine powder, carbon black, α-Al
2o
3micro mist, asphalt powder, Si powder and B
4c powder mixes, and mixing time is 3 ~ 5 minutes.
The molten point volume density of furnace lining material when 200 DEG C × 24h obtained by the present embodiment 6 is 3.00 ~ 3.10g/cm
3, cold crushing strength when apparent porosity is 6 ~ 8%, 200 DEG C × 24h is 64 ~ 68MPa; Scouring test is carried out, without obviously infiltration and erosion under 1600 DEG C × 0.5h air atmosphere; Carry out Oxidation Resistance Test under 1000 DEG C × 3h air atmosphere, antioxidant property is good; At 1100 DEG C, thermal shock resistance can be good.
This embodiment compared with prior art has following positively effect:
Ti (C, N) is difficult to be melted a point slag and soaks, and introduces the corrosion resistance that Ti (C, N) can improve molten point furnace lining material in theory.But pure Ti (C, N) raw materials cost is high, and be in use easy to oxidation generation TiO
2, TiO
2can be reacted with the MgO in magnesian generation magnesium titanate further, and when temperature is down to below 1200 DEG C, the decomposition of magnesium titanate brings certain negative impact to the volume stability of material.This embodiment adopts carbothermal method to process the molten point slag of high titanium, both make use of the molten point slag of a part of high titanium, and can obtain comparatively at an easy rate containing Ti (C, N) composite granule; Because the carbon black add-on in this embodiment is comparatively large, part SiO
2change into SiC, Ti (C, the N) crystal grain simultaneously generated less and wrap up by other thing phases, substantially reduce the probability that Ti (C, N) is oxidized.Even if in this composite granule outside Ti (C, N), SiC and remaining carbon black, also there are other impurity phases, but their composition still has certain similarity with a molten point slag, can play the effect delaying molten point slag and spread to material internal.
The silicon carbide thermal conductivity that this embodiment adopts high, anti-(FeO) and (TiO
2) erosional competency strong, and its oxidation-resistance is obviously better than carbon raw, and especially most of silicon carbide is introduced with the form of aggregate, also improves oxidation-resistance and the thermal shock resistance of integral material while raising material corrosion resistance.Carbon in usual Magnesia-carbon material is introduced with crystalline flake graphite form, and its add-on is generally at 12 ~ 18wt%, and the cold crushing strength when 200 DEG C × 24h is generally at about 35MPa.In this embodiment, crystalline flake graphite fine powder add-on is only 2 ~ 3wt%, the processability of material is significantly improved, cold crushing strength when 200 DEG C × 24h is at more than 50MPa, and also introduce the higher carbon black of a certain amount of activity in material and pitch also can be transformed into high-activity carbon in materials'use process, these high-activity carbons and Si powder react, and can promote the intensity of material further, thus improve the erosion resistibility of material.
The molten point volume density of furnace lining material when 200 DEG C × 24h obtained by this embodiment is 2.90 ~ 3.10g/cm
3, cold crushing strength when apparent porosity is 6 ~ 8%, 200 DEG C × 24h is 56 ~ 68MPa; Scouring test is carried out, without obviously infiltration and erosion under 1600 DEG C × 0.5h air atmosphere; Carry out Oxidation Resistance Test under 1000 DEG C × 3h air atmosphere, antioxidant property is good; At 1100 DEG C, thermal shock resistance can be good.
Therefore, the molten point of furnace lining material that prepared by this embodiment has high temperature resistant, resistance to erosion, anti-(FeO) and (TiO
2) strong, the good in oxidation resistance of erosional competency and the feature of good in thermal shock.
Claims (8)
1. a preparation method for molten point furnace lining material, is characterized in that the raw material of described molten point furnace lining material and content thereof are:
The preparation method of molten point furnace lining material is: prepare burden by above-mentioned raw materials and content thereof, first magnesia particle and silicon-carbide particle are mixed 3 ~ 5 minutes, add resol mixing 4 ~ 7 minutes, add powder mix again, mixing 12 ~ 18 minutes, shaping, then under 180 ~ 220 DEG C of conditions dry 24 hours, a point furnace lining material must be melted;
Described powder mix is by Ti (C, N)-SiC-C composite powder, magnesia powder, carbide fine powder, crystalline flake graphite fine powder, carbon black, α-Al
2o
3micro mist, asphalt powder, Si powder and B
4c powder mixes, and mixing time is 3 ~ 5 minutes;
The preparation method of described Ti (C, N)-SiC-C composite powder is: first by broken for molten for high titanium point slag, deironing, be milled to particle diameter≤0.15mm, obtain the molten point ground-slag material of high titanium, then be that 4 ~ 6:1 prepares burden in mass ratio by molten for high titanium point ground-slag material and carbon black, mill, obtains common abrasive dust altogether; Then by common abrasive dust at 1350 ~ 1450 DEG C with to bury under carbon condition thermal treatment 3 ~ 5 hours, levigate to particle diameter≤0.088mm, obtained Ti (C, N)-SiC-C composite powder.
2. the preparation method of molten point furnace lining material according to claim 1, is characterized in that the content of MgO >=98wt% in described magnesia particle; Wherein: particle diameter is that the magnesia particle of 5 ~ 3mm accounts for 36 ~ 45wt%, particle diameter is that the magnesia particle of 3 ~ 1mm accounts for 30 ~ 40wt%, and particle diameter is that the magnesia particle of 1 ~ 0.1mm accounts for 15 ~ 28wt%.
3. the preparation method of molten point furnace lining material according to claim 1, is characterized in that the SiC content >=97wt% in described silicon-carbide particle; Wherein: particle diameter is that the silicon-carbide particle of 3 ~ 1mm accounts for 30 ~ 40wt%, particle diameter is that the silicon-carbide particle of 1 ~ 0.1mm accounts for 55 ~ 75wt%.
4. the preparation method of molten point furnace lining material according to claim 1, is characterized in that the C content >=97wt% in described crystalline flake graphite fine powder, granularity < 0.075mm.
5. the preparation method of molten point furnace lining material according to claim 1, is characterized in that described shaping pressure is 100 ~ 150MPa.
6. the preparation method of molten point furnace lining material according to claim 1, is characterized in that the composition that described high titanium melts point slag is: TiO
2be 32 ~ 48wt%, SiO
2be 12 ~ 21wt%, MgO be 10 ~ 18wt%, Al
2o
3be 9 ~ 17wt%, CaO be 3 ~ 5wt%, FeO be 1 ~ 3wt%, other components are 2 ~ 5wt%.
7. the preparation method of molten point furnace lining material according to claim 1, is characterized in that the softening temperature of described asphalt powder is 90 ~ 120 DEG C, ash oontent < 0.5wt%, moisture content < 5wt%.
8. a molten point of furnace lining material, is characterized in that described molten point furnace lining material is the molten point furnace lining material prepared by preparation method of the molten point furnace lining material according to any one of claim 1 ~ 7.
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| CN105152668B (en) * | 2015-10-13 | 2017-12-15 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of RH liners chromium-free brick and preparation method thereof |
| CN105541359B (en) * | 2016-01-18 | 2018-01-12 | 武汉科技大学 | A kind of ladle splash guard castable refractory and preparation method thereof |
| CN109293376B (en) * | 2018-10-11 | 2021-07-06 | 武汉科技大学 | Silicon nitride titanium nitride combined silicon carbide refractory material and preparation method thereof |
| CN110256050A (en) * | 2019-07-05 | 2019-09-20 | 中钢集团洛阳耐火材料研究院有限公司 | A kind of pyrolytic semlting magnesium carbonaceous artesian repairing material |
| CN111777417B (en) * | 2020-07-29 | 2022-06-10 | 攀钢冶金材料有限责任公司 | Silicon carbide-carbon ramming mass for blast furnace slag high-temperature carbonization electric furnace and preparation method thereof |
| CN114315388B (en) * | 2021-12-31 | 2023-01-06 | 北京瑞普同创科技发展有限公司 | Anti-splashing anhydrous stemming for blast furnace and preparation method thereof |
| CN114890775A (en) * | 2022-06-02 | 2022-08-12 | 凤城市千誉钛业有限公司 | Furnace lining material of titanium slag smelting submerged arc furnace and preparation method thereof |
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| CN1944346A (en) * | 2006-10-19 | 2007-04-11 | 武汉科技大学 | Titanium nitride magnesia carbon brick containing carbon and its preparing method |
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