CN116217248A - 一种低成本长寿命中包挡渣墙及制备方法 - Google Patents
一种低成本长寿命中包挡渣墙及制备方法 Download PDFInfo
- Publication number
- CN116217248A CN116217248A CN202211536657.0A CN202211536657A CN116217248A CN 116217248 A CN116217248 A CN 116217248A CN 202211536657 A CN202211536657 A CN 202211536657A CN 116217248 A CN116217248 A CN 116217248A
- Authority
- CN
- China
- Prior art keywords
- slag
- wall
- package
- less
- particle size
- 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
- 239000002893 slag Substances 0.000 title claims abstract description 53
- 230000000903 blocking effect Effects 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 36
- 239000002994 raw material Substances 0.000 claims abstract description 21
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052609 olivine Inorganic materials 0.000 claims abstract description 14
- 239000010450 olivine Substances 0.000 claims abstract description 14
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 10
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 8
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 5
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims abstract description 5
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims abstract description 5
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 23
- 238000001035 drying Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000001095 magnesium carbonate Substances 0.000 claims description 2
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 5
- 229910052839 forsterite Inorganic materials 0.000 abstract description 4
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 239000007791 liquid phase Substances 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 239000011819 refractory material Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- NACUKFIFISCLOQ-UHFFFAOYSA-N [Mg].[Cr] Chemical compound [Mg].[Cr] NACUKFIFISCLOQ-UHFFFAOYSA-N 0.000 description 1
- MKPXGEVFQSIKGE-UHFFFAOYSA-N [Mg].[Si] Chemical compound [Mg].[Si] MKPXGEVFQSIKGE-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229940005740 hexametaphosphate Drugs 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- 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
- C04B35/16—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 silicates other than clay
- C04B35/20—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 silicates other than clay rich in magnesium oxide, e.g. forsterite
-
- 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts thereof
-
- 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
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/447—Phosphates or phosphites, e.g. orthophosphate, hypophosphite
-
- 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
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
-
- 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
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5216—Inorganic
-
- 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
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
-
- 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
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
本发明公开了一种低成本长寿命中包挡渣墙及制备方法,其包括主料和辅料;所述主料各原料的质量百分含量为:橄榄石54%~60%、镁砂35%~40%、硅灰3.5%~4%、氧化铬绿1%~2.5%;所述辅料各原料占主料总重的配比为:六偏磷酸钠0.10%~0.15%、防爆纤维0.08%~0.12%、钢纤维1%~1.2%。本挡渣墙充分利用镁橄榄石浇注料高温热抗折强度高的优势,引入高熔点、抗渣侵蚀性能优良的氧化铬绿,弥补低成本橄榄石在高温条件下非均质液相较多的缺陷,提高了整个机体的耐火度,增强了挡渣墙的综合使用性能;通过引入氧化铬绿微粉避免了烘烤过程中的开裂现象,提高了挡渣墙的抗渣性能,保证了挡渣墙高的使用寿命。
Description
技术领域
本发明涉及一种炼钢用耐火材料,尤其是一种低成本长寿命中包挡渣墙及制备方法。
背景技术
中间包作为钢水冶炼过程中最后的容器,其冶金功能已尤为突出,如何提高钢水产量和质量仍是中间包耐材需要讨论的重要内容。中间包挡渣墙在控制流场和温度场方面起着重要的作用,延长钢水在中包内的停留时间,充分进行热交换和夹杂物碰撞、聚集、上浮,均匀温度和钢水成分,提高钢坯质量。
中间包挡渣墙普遍采用耐火浇注料浇注成型,材质有刚玉质、铝镁质等,经过养护、脱模、烘烤等工艺制成预制件后在中间包上安装使用。使用上述材质虽然已经成熟,但是随着钢厂整合的大趋势的进行,耐火材料市场竞争激烈,中包耐材的承包价格不断下降,而且铝矾土、镁砂等耐火材料原料价格不断上涨,造成了中包耐材制品包括挡渣墙等预制件成本压力增大,企业的盈利空间被进一步压缩。
发明内容
本发明要解决的技术问题是提供一种低成本长寿命中包挡渣墙;本发明还提供了一种低成本长寿命中包挡渣墙的制备方法。
为解决上述技术问题,本发明所采取的技术方案是:其包括主料和辅料;所述主料各原料的质量百分含量为:橄榄石54%~60%、镁砂35%~40%、硅灰3.5%~4%、氧化铬绿1%~2.5%;所述辅料各原料占主料总重的配比为:六偏磷酸钠0.10%~0.15%、防爆纤维0.08%~0.12%、钢纤维1%~1.2%。
进一步的,所述橄榄石的粒径为1mm≤粒径≤8mm。更进一步的,各粒径的橄榄石在主料中的的质量百分含量为:5mm<粒径≤8mm 30%~35%;3mm<粒径≤5mm 5%~10%;1mm≤粒径≤3mm 15%~18%。
进一步的,所述镁砂采用两种粒径,分别为粒径≤1mm和粒径≤200目。更进一步的,各粒径的镁砂在主料中的的质量百分含量为:粒径≤1mm 17%~20%;粒径≤200目 18%~20%。
进一步的,所述氧化铬绿粒径≤5μm。
本发明方法为:所述主料和辅料加水搅匀后,在模具中成模;成模后的挡渣墙带模进行养护、脱模;脱模后的挡渣墙经高温烘干,即得所述挡渣墙。
进一步的,所述养护温度80~100℃,养护时间12~14h。
进一步的,所述高温烘干温度280~300℃,烘干时间3~6h。
采用上述技术方案所产生的有益效果在于:
(1)本发明使用低成本的镁橄榄石为主要原料,引入氧化铬提高橄榄石浇注料的抗渣侵蚀性能,从而提高中包使用寿命,降本增效;
(2)本发明充分利用镁橄榄石浇注料高温热抗折强度高的优势,引入高熔点、抗渣侵蚀性能优良的氧化铬绿,弥补低成本橄榄石在高温条件下非均质液相较多的缺陷,提高了整个机体的耐火度,增强了挡渣墙的综合使用性能;通过引入氧化铬绿微粉,一方面提高挡渣墙的强度,避免烘烤过程中的开裂现象,另一方面利用氧化铬绿微粉的良好的高温性能,提高挡渣墙的抗渣性能,与橄榄石浇注料高温抗折高的性能相结合,保证挡渣墙高的使用寿命;
(3)使用含铬绿镁橄榄石浇注料,成本要比传统的铝镁浇注料低800元/吨~1000元/吨,大大降低了成本,提高产品的竞争能力;
(4)尤其是采用不同粒径的微粉,能够有效填充浇注料的空隙,增加浇注料的密实度,提高其常温强度,能够有效避免预制件的开裂,提高产品的成品率。
具体实施方式
下面结合具体实施方式对本发明作进一步详细的说明。
本低成本长寿命中包挡渣墙原料设计原理:橄榄石浇注料属于镁硅***,本身具有优良的高温性能,但是目前所使用的橄榄石成分较杂,挡渣墙在使用的过程中,抗渣性能有很大下降。通过引入氧化铬绿这一高温物相,与基质(细粉)中的氧化镁在900℃左右开始生成镁铬尖晶石,提高浇注料的抗渣性能,而不明显降低浇注料的耐火度。
本低成本长寿命中包挡渣墙的原料包括主料和辅料;所述主料各原料的质量百分含量为:橄榄石54%~60%、镁砂35%~40%、硅灰3.5%~4%、氧化铬绿1%~2.5%;所述辅料各原料占主料总重的配比为:六偏磷酸钠0.10%~0.15%、防爆纤维0.08%~0.12%、钢纤维1%~1.2%。所采用的主要原料的化学组成见表1;
表1:主要原料的化学组成(w/%)
优选的,各原料的配比见表2;
表2:挡渣墙原料的配比
表2中,主料总和100%,辅料六偏磷酸钠、防爆纤维和钢纤维的配比按与主料总重的配比计算;所述硅灰最好采用埃肯951u。
本低成本长寿命中包挡渣墙的制备方法采用步骤:(1)取合格原料按照配比准确称重,放入强制式搅拌机,干搅至少5min;(2)在搅拌机中进行加水,加水量为原料总重的4.5%~5wt%,湿搅至少5min,使料浆充分搅匀、无生料;(3)卸料,放入到挡渣墙模具中,使用振动平台进行振动,使浇注料泛浆、排出气泡、充分振实,放到成型区静置至少2h;(4)将挡渣墙带模放入养护窑中,养护温度(窑温)80℃~100℃、养护12~14h,脱模,防止磕碰;(5)将脱模后的挡渣墙送入高温窑中,按照升温曲线进行升温,最终达到高温烘干温度280~300℃、进行烘干3~6h;最终出窑即得成品。
实施例1-6:本低成本长寿命中包挡渣墙及制备方法具体如下所述。
(1)各实施例原料的成分配比见表3;
表3:各实施例原料的成分配比(wt)
表3中,D为粒径,六偏为六偏磷酸钠;辅料的配比按主料总重计算。
(2)采用上述工艺过程,各实施例具体的工艺参数见表4;
表4:各实施例的工艺参数
(3)对比实验:上述实施例1-6所得挡渣墙的使用时间和下线侵蚀情况见表5。选用常规挡渣墙作为对比,常规挡渣墙的使用时间和下线侵蚀情况见表5。
表5:实施例和对比例的使用效果
由表5可见,本挡渣墙的使用时间明显变长,且下线侵蚀情况明显变好。
Claims (9)
1.一种低成本长寿命中包挡渣墙,其特征在于,其包括主料和辅料;所述主料各原料的质量百分含量为:橄榄石54%~60%、镁砂35%~40%、硅灰3.5%~4%、氧化铬绿1%~2.5%;所述辅料各原料占主料总重的配比为:六偏磷酸钠0.10%~0.15%、防爆纤维0.08%~0.12%、钢纤维1%~1.2%。
2.根据权利要求1所述的一种低成本长寿命中包挡渣墙,其特征在于:所述橄榄石的粒径为1mm≤粒径≤8mm。
3.根据权利要求2所述的一种低成本长寿命中包挡渣墙,其特征在于:各粒径的橄榄石在主料中的的质量百分含量为:5mm<粒径≤8mm 30%~35%;3mm<粒径≤5mm 5%~10%;1mm≤粒径≤3mm 15%~18%。
4.根据权利要求1所述的一种低成本长寿命中包挡渣墙,其特征在于:所述镁砂采用两种粒径,分别为粒径≤1mm和粒径≤200目。
5.根据权利要求4所述的一种低成本长寿命中包挡渣墙,其特征在于:各粒径的镁砂在主料中的的质量百分含量为:粒径≤1mm 17%~20%、粒径≤200目 18%~20%。
6.根据权利要求1-5任意一项所述的一种低成本长寿命中包挡渣墙,其特征在于:所述氧化铬绿粒径≤5μm。
7.权利要求1-6任意一项所述一种低成本长寿命中包挡渣墙的制备方法,其特征在于:所述主料和辅料加水搅匀后,在模具中成模;成模后的挡渣墙带模进行养护、脱模;脱模后的挡渣墙经高温烘干,即得所述挡渣墙。
8.根据权利要求7所述的一种低成本长寿命中包挡渣墙的制备方法,其特征在于:所述养护温度80~100℃,养护时间12~14h。
9.根据权利要求7或8所述的一种低成本长寿命中包挡渣墙的制备方法,其特征在于:所述高温烘干温度280~300℃,烘干时间3~6h。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202211536657.0A CN116217248A (zh) | 2022-12-02 | 2022-12-02 | 一种低成本长寿命中包挡渣墙及制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202211536657.0A CN116217248A (zh) | 2022-12-02 | 2022-12-02 | 一种低成本长寿命中包挡渣墙及制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN116217248A true CN116217248A (zh) | 2023-06-06 |
Family
ID=86581272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202211536657.0A Pending CN116217248A (zh) | 2022-12-02 | 2022-12-02 | 一种低成本长寿命中包挡渣墙及制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN116217248A (zh) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1537192A (en) * | 1976-06-08 | 1978-12-29 | Aikoh Co | Heat insulating article for use in the treatment of molten steel |
CN1054245A (zh) * | 1991-04-12 | 1991-09-04 | 冶金工业部洛阳耐火材料研究院 | 连铸中间包绝热板及其制备方法 |
CN101913888A (zh) * | 2010-08-18 | 2010-12-15 | 武汉钢铁(集团)公司 | 镁橄榄石质中间包挡渣墙用浇注料及其生产工艺 |
CN109020581A (zh) * | 2018-09-21 | 2018-12-18 | 成都尚威耐火材料有限公司 | 一种炼铸中间包复合干式料及其制备方法 |
CN110229008A (zh) * | 2019-07-05 | 2019-09-13 | 巩义市兴嘉耐火材料有限公司 | 长寿命大型钢包用刚玉浇注料 |
-
2022
- 2022-12-02 CN CN202211536657.0A patent/CN116217248A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1537192A (en) * | 1976-06-08 | 1978-12-29 | Aikoh Co | Heat insulating article for use in the treatment of molten steel |
CN1054245A (zh) * | 1991-04-12 | 1991-09-04 | 冶金工业部洛阳耐火材料研究院 | 连铸中间包绝热板及其制备方法 |
CN101913888A (zh) * | 2010-08-18 | 2010-12-15 | 武汉钢铁(集团)公司 | 镁橄榄石质中间包挡渣墙用浇注料及其生产工艺 |
CN109020581A (zh) * | 2018-09-21 | 2018-12-18 | 成都尚威耐火材料有限公司 | 一种炼铸中间包复合干式料及其制备方法 |
CN110229008A (zh) * | 2019-07-05 | 2019-09-13 | 巩义市兴嘉耐火材料有限公司 | 长寿命大型钢包用刚玉浇注料 |
Non-Patent Citations (2)
Title |
---|
尹汝珊等: "《耐火材料技术问答》", 28 February 1994, 冶金工业出版社, pages: 278 * |
谢朝晖: "《筑炉工程手册》", 31 January 2007, 冶金工业出版社, pages: 203 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103482989B (zh) | 刚玉镁铝尖晶石浇注料以及使用浇注料制备预制砖的方法 | |
CN105036773A (zh) | 钢包包底浇注料 | |
CN109879661B (zh) | 一种中间包涂抹料及其制备方法 | |
CN102807383B (zh) | 铝镁质连铸中间包挡渣墙及制备方法 | |
CN112456973B (zh) | 一种中间包用镁质稳流器及其制备方法 | |
CN106495712A (zh) | 镁凝胶结合刚玉尖晶石机压免烧钢包衬砖及其制备方法 | |
CN114031377A (zh) | 一种无碳钢包用无水泥结合喷补料及其制备方法 | |
CN114031378A (zh) | 一种抗冲刷钢包包底浇注料及其生产方法 | |
CN101254535B (zh) | 一种浇注钢水用定径水口及其制造工艺 | |
CN109095902B (zh) | 一种玻璃窑炉用铺面砖及其生产工艺 | |
CN107434404A (zh) | 一种锆复合高性能电熔镁钙锆砖及其制造方法 | |
CN116217248A (zh) | 一种低成本长寿命中包挡渣墙及制备方法 | |
CN115536410A (zh) | 一种低碳镁碳砖及其制备方法 | |
CN109608174A (zh) | 可水合氧化铝结合刚玉-尖晶石浇注料及其制备方法 | |
CN101921124A (zh) | 气压浇注炉的炉衬浇注材料组合物 | |
CN111113638B (zh) | 一种低成本高寿命板坯连铸中间包湍流器的制备方法 | |
CN108409300A (zh) | 富镁碱性滑板砖及其制备方法 | |
CN113072385A (zh) | 一种添加废旧日用玻璃粉的铁水包包口浇注料 | |
CN116396063B (zh) | 一种用于低氧铜杆生产中抵抗铜液侵蚀与剥落的99浇注料 | |
CN1062247C (zh) | 一种用于炼钢中间包的衬板及其制造方法 | |
CN111113634A (zh) | 一种组合式板坯连铸中间包湍流控制器及其制备方法 | |
CN103086729A (zh) | 一种气压浇注炉的炉衬浇注材料组合物 | |
CN115286403B (zh) | 一种受热自流快速修补干粉料及其制备方法 | |
CN116143501B (zh) | 一种机压中间包挂板及其制备方法 | |
CN114163220B (zh) | 复合材质的鱼雷罐罐口浇注体及其施工方法 |
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 |