CN108558375A - 一种大高炉用长寿命主铁沟浇注料的制备方法 - Google Patents
一种大高炉用长寿命主铁沟浇注料的制备方法 Download PDFInfo
- Publication number
- CN108558375A CN108558375A CN201810510561.4A CN201810510561A CN108558375A CN 108558375 A CN108558375 A CN 108558375A CN 201810510561 A CN201810510561 A CN 201810510561A CN 108558375 A CN108558375 A CN 108558375A
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- iron runner
- preparation
- powder
- main iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
- C04B35/103—Refractories from grain sized mixtures containing non-oxide refractory materials, e.g. carbon
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
-
- 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
- C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
- C04B2235/3203—Lithium oxide 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
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
-
- 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
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
- C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3826—Silicon carbides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—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
- C04B2235/40—Metallic constituents or additives not added as binding phase
- C04B2235/401—Alkaline earth metals
-
- 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
- C04B2235/40—Metallic constituents or additives not added as binding phase
- C04B2235/402—Aluminium
-
- 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
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/428—Silicon
-
- 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
- C04B2235/5212—Organic
-
- 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
- C04B2235/02—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
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
本发明公开了一种大高炉用长寿命主铁沟浇注料的制备方法,依次包括以下工艺步骤:破碎、粉碎、细磨、搅拌、检测、包装,本发明所有的物料均经过球磨机和气流式超微粉碎机进行粉碎和细磨,粒度均匀,避免当通铁量超过8万吨之后由于细粉的原因导致的剥落,大大提高了浇注料的使用寿命,将2500m3高炉的一次性通铁量从10万吨提高到15万吨,大大提高生产效率;产品加水量少,流动值大,高温使用性能良好,热震稳定性强,高炉铁沟通铁量大和耐火材料消耗少;产品计量包装前先进行检测,保证产品合格率,避免不合格产品进厂,大大提高产品质量的稳定性。
Description
【技术领域】
本发明涉及耐火浇注料制备的技术领域,尤其涉及一种大高炉用长寿命主铁沟浇注料的制备方法。
【背景技术】
近年来,随着高炉冶炼技术的发展,冶炼强度不断加大,2011年全国高炉生铁已达6.28亿吨,高炉出铁沟耐火材料消耗量较大。Al2O3-SiC-C质浇注料具有强度高、耐冲刷、抗热震和使用寿命较长等特点,同时碳和碳化硅的高导热性、低膨胀率和渣非润湿性都赋予此材料体系良好的物理化学性能,从而广泛应用于高炉出铁沟***。随着高炉容积不断增大,对一次性出铁量的要求不断提高,因此,Al2O3-SiC-C质铁沟料也相应的向着高通铁量、高稳定性、大流动值的方向发展。
为进一步提高铁沟浇注料的使用性能,国内外学者纷纷通过优化基质来改善其使用性能。如专利号:CN201110044222.X“一种新型主铁沟浇注料”专利技术,公开了改性纳米碳粉取代沥青,提高其抗氧化性能和残炭率,还能改善烘烤时抗爆裂性能,但是抗热震性能不太理想;专利号:CN201210281186.3“一种大于2500m3高炉主铁沟浇注料”专利技术,公开了加入锌铝尖晶石粉、纳米级硅酸锆、氧化锆空心球并以二氧化硅溶胶悬浮液做纳米结合剂,提高了浇注料的热震稳定性,但成本也相应提高了许多,且抗氧化还没有得到很好的解决;专利号:CN201210098290.9“一种铁沟浇注料及其制备方法”专利技术,公开了用改性石墨部分代替球状沥青,提高其抗氧化性能,减少环境污染,但是高温抗折强度相应的减少。
随着冶炼技术进步的不断提高,通铁时间延长,出铁间隔时间短,增大了出铁沟耐火材料的侵蚀破坏程度,对高炉出铁沟用耐材提出了长寿命的要求。普通的浇注料所需的氧化铝微粉、碳化硅微粉粒度不够均匀,当通铁量超过8万吨之后,常常由于微粉粒度不够均匀的原因,会出现裂缝,严重的时候甚至会出现剥落,导致通铁量上不去。
因此有必要对现有技术进行改进,研发出一种大高炉用长寿命主铁沟浇注料的制备方法。
【发明内容】
本发明的目的就是解决现有技术中的问题,提出一种大高炉用长寿命主铁沟浇注料的制备方法,所有的物料均经过球磨机和气流式超微粉碎机进行粉碎和细磨,粒度均匀,避免当通铁量超过8万吨之后由于细粉的原因导致的剥落,大大提高了浇注料的使用寿命,产品加水量少,流动值大,高温使用性能良好,热震稳定性强,高炉铁沟通铁量大和耐火材料消耗少,且产品计量包装前先进行检测,保证产品合格率,大大提高产品质量的稳定性。
为实现上述目的,本发明提出了一种大高炉用长寿命主铁沟浇注料的制备方法,依次包括以下工艺步骤:
a)破碎:将配比好的棕刚玉颗粒、板状刚玉、碳化硅颗粒、铝酸盐水泥、抗氧化剂、减水剂、膨胀剂、分散剂、防爆纤维、促凝剂和水,投放到颚式破碎机进行破碎;
b)粉碎:将步骤a中破碎完成的物料加入到球磨机中,再将棕刚玉细粉、碳化硅微粉、氧化硅微粉、活性氧化铝微粉、纳米碳粉加入到球磨机中,对混合物料进行粉碎;
c)细磨:将步骤b中粉碎完成的混合物料加入到气流式超微粉碎机中进行细磨;
d)搅拌:将步骤c中细磨完成的混合物料投入到铁沟料搅拌机中进行搅拌10min~15min,使物料充分混合均匀;
e)检测:光谱仪和X射线衍射仪对步骤d搅拌完成的物料进行抽检;
f)包装:将检测合格的物料计量、包装、入库。
作为优选,所述的棕刚玉颗粒的粒度为3~5mm,所述的棕刚玉细粉的粒度为0~45μm,所述的活性氧化铝微粉的粒度为0~10μm,活性氧化铝微粉中Al2O3>99.12wt%,所述的铝酸盐水泥为铝酸钙水泥,所述的铝酸钙水泥的粒度为0~45μm,铝酸钙水泥中Al2O3>70.35wt%、CaO>28.45wt%,所述的氧化硅微粉的粒度为0~10μm,氧化硅微粉中SiO2>99.15wt%。
作为优选,所述的抗氧化剂为金属硅微粉、金属铝粉、金属镁粉中的一种或多种的混合物。
作为优选,所述的减水剂为木钙、三聚磷酸钠和聚羧酸高效减水剂的一种或几种的混合物。
作为优选,所述的膨胀剂为铝酸钙膨胀剂。
作为优选,所述的分散剂为三聚磷酸钠和六偏磷酸钠混合而成。
作为优选,所述的防爆纤维是聚氨酯类纤维。
作为优选,所述的促凝剂为碳酸锂。
作为优选,所述的步骤c中流式超微粉碎机细磨完成的混合物料的颗粒度为150目~800目。
本发明的有益效果:本发明一种大高炉用长寿命主铁沟浇注料的制备方法,所有的物料均经过球磨机和气流式超微粉碎机进行粉碎和细磨,粒度均匀,避免当通铁量超过8万吨之后由于细粉的原因导致的剥落,大大提高了浇注料的使用寿命,将2500m3高炉的一次性通铁量从10万吨提高到15万吨,大大提高生产效率;产品加水量少,流动值大,高温使用性能良好,热震稳定性强,高炉铁沟通铁量大和耐火材料消耗少;产品计量包装前先进行检测,保证产品合格率,避免不合格产品进厂,大大提高产品质量的稳定性。
本发明的特征及优点将通过实施例进行详细说明。
【具体实施方式】
为使本发明的目的、技术方案和优点更加清楚明了,下面通过实施例,对本发明进行进一步详细说明。但是应该理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限制本发明的范围。此外,在以下说明中,省略了对公知结构和技术的描述,以避免不必要地混淆本发明的概念。
本发明实施例提供一种大高炉用长寿命主铁沟浇注料的制备方法,依次包括以下工艺步骤:
a)破碎:将配比好的棕刚玉颗粒、板状刚玉、碳化硅颗粒、铝酸盐水泥、抗氧化剂、减水剂、膨胀剂、分散剂、防爆纤维、促凝剂和水,投放到颚式破碎机进行破碎;
b)粉碎:将步骤a中破碎完成的物料加入到球磨机中,再将棕刚玉细粉、碳化硅微粉、氧化硅微粉、活性氧化铝微粉、纳米碳粉加入到球磨机中,对混合物料进行粉碎;
c)细磨:将步骤b中粉碎完成的混合物料加入到气流式超微粉碎机中进行细磨;
d)搅拌:将步骤c中细磨完成的混合物料投入到铁沟料搅拌机中进行搅拌10min~15min,使物料充分混合均匀;
e)检测:光谱仪和X射线衍射仪对步骤d搅拌完成的物料进行抽检;
f)包装:将检测合格的物料计量、包装、入库。
所述的棕刚玉颗粒的粒度为3~5mm,所述的棕刚玉细粉的粒度为0~45μm,所述的活性氧化铝微粉的粒度为0~10μm,活性氧化铝微粉中Al2O3>99.12wt%,所述的铝酸盐水泥为铝酸钙水泥,所述的铝酸钙水泥的粒度为0~45μm,铝酸钙水泥中Al2O3>70.35wt%、CaO>28.45wt%,所述的氧化硅微粉的粒度为0~10μm,氧化硅微粉中SiO2>99.15wt%。
所述的抗氧化剂为金属硅微粉、金属铝粉、金属镁粉中的一种或多种的混合物。所述的减水剂为木钙、三聚磷酸钠和聚羧酸高效减水剂的一种或几种的混合物。所述的膨胀剂为铝酸钙膨胀剂。所述的分散剂为三聚磷酸钠和六偏磷酸钠混合而成。所述的防爆纤维是聚氨酯类纤维。所述的促凝剂为碳酸锂。所述的步骤c中流式超微粉碎机细磨完成的混合物料的颗粒度为150目~800目。
本发明一种大高炉用长寿命主铁沟浇注料的制备方法制备的产品主要技术性能指标如下:
产品经浙江省耐火材料产品质量检验中心检测,检测报告编号:2017WTNJ0820,检测结果均符合企业标准及新产品备案书要求。
本发明一种大高炉用长寿命主铁沟浇注料的制备方法,所有的物料均经过球磨机和气流式超微粉碎机进行粉碎和细磨,粒度均匀,避免当通铁量超过8万吨之后由于细粉的原因导致的剥落,大大提高了浇注料的使用寿命,将2500m3高炉的一次性通铁量从10万吨提高到15万吨,大大提高生产效率;产品加水量少,流动值大,高温使用性能良好,热震稳定性强,高炉铁沟通铁量大和耐火材料消耗少;产品计量包装前先进行检测,保证产品合格率,避免不合格产品进厂,大大提高产品质量的稳定性。
上述实施例是对本发明的说明,不是对本发明的限定,任何对本发明简单变换后的方案均属于本发明的保护范围。
Claims (9)
1.一种大高炉用长寿命主铁沟浇注料的制备方法,其特征在于:依次包括以下工艺步骤:
a)破碎:将配比好的棕刚玉颗粒、板状刚玉、碳化硅颗粒、铝酸盐水泥、抗氧化剂、减水剂、膨胀剂、分散剂、防爆纤维、促凝剂和水,投放到颚式破碎机进行破碎;
b)粉碎:将步骤a中破碎完成的物料加入到球磨机中,再将棕刚玉细粉、碳化硅微粉、氧化硅微粉、活性氧化铝微粉、纳米碳粉加入到球磨机中,对混合物料进行粉碎;
c)细磨:将步骤b中粉碎完成的混合物料加入到气流式超微粉碎机中进行细磨;
d)搅拌:将步骤c中细磨完成的混合物料投入到铁沟料搅拌机中进行搅拌10min~15min,使物料充分混合均匀;
e)检测:光谱仪和X射线衍射仪对步骤d搅拌完成的物料进行抽检;
f)包装:将检测合格的物料计量、包装、入库。
2.如权利要求1中所述的一种大高炉用长寿命主铁沟浇注料的制备方法,其特征在于:所述的棕刚玉颗粒的粒度为3~5mm,所述的棕刚玉细粉的粒度为0~45μm,所述的活性氧化铝微粉的粒度为0~10μm,活性氧化铝微粉中Al2O3>99.12wt%,所述的铝酸盐水泥为铝酸钙水泥,所述的铝酸钙水泥的粒度为0~45μm,铝酸钙水泥中Al2O3>70.35wt%、CaO>28.45wt%,所述的氧化硅微粉的粒度为0~10μm,氧化硅微粉中SiO2>99.15wt%。
3.如权利要求1中所述的一种大高炉用长寿命主铁沟浇注料的制备方法,其特征在于:所述的抗氧化剂为金属硅微粉、金属铝粉、金属镁粉中的一种或多种的混合物。
4.如权利要求1中所述的一种大高炉用长寿命主铁沟浇注料的制备方法,其特征在于:所述的减水剂为木钙、三聚磷酸钠和聚羧酸高效减水剂的一种或几种的混合物。
5.如权利要求1中所述的一种大高炉用长寿命主铁沟浇注料的制备方法,其特征在于:所述的膨胀剂为铝酸钙膨胀剂。
6.如权利要求1中所述的一种大高炉用长寿命主铁沟浇注料的制备方法,其特征在于:所述的分散剂为三聚磷酸钠和六偏磷酸钠混合而成。
7.如权利要求1中所述的一种大高炉用长寿命主铁沟浇注料的制备方法,其特征在于:所述的防爆纤维是聚氨酯类纤维。
8.如权利要求1中所述的一种大高炉用长寿命主铁沟浇注料的制备方法,其特征在于:所述的促凝剂为碳酸锂。
9.如权利要求1中所述的一种大高炉用长寿命主铁沟浇注料的制备方法,其特征在于:所述的步骤c中流式超微粉碎机细磨完成的混合物料的颗粒度为150目~800目。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810510561.4A CN108558375A (zh) | 2018-05-24 | 2018-05-24 | 一种大高炉用长寿命主铁沟浇注料的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810510561.4A CN108558375A (zh) | 2018-05-24 | 2018-05-24 | 一种大高炉用长寿命主铁沟浇注料的制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108558375A true CN108558375A (zh) | 2018-09-21 |
Family
ID=63539736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810510561.4A Pending CN108558375A (zh) | 2018-05-24 | 2018-05-24 | 一种大高炉用长寿命主铁沟浇注料的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108558375A (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109279880A (zh) * | 2018-12-05 | 2019-01-29 | 钢城集团凉山瑞海实业有限公司 | 炼铁高炉主铁沟耐火浇注料 |
CN109627018A (zh) * | 2018-10-16 | 2019-04-16 | 青岛万和装饰门窗工程有限公司 | 一种适用于门窗的轻质耐火浇注料及其制备方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101805195A (zh) * | 2010-03-19 | 2010-08-18 | 蒋美芳 | 一种喷煤管专用高性能耐磨浇注料的制备方法 |
-
2018
- 2018-05-24 CN CN201810510561.4A patent/CN108558375A/zh active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101805195A (zh) * | 2010-03-19 | 2010-08-18 | 蒋美芳 | 一种喷煤管专用高性能耐磨浇注料的制备方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109627018A (zh) * | 2018-10-16 | 2019-04-16 | 青岛万和装饰门窗工程有限公司 | 一种适用于门窗的轻质耐火浇注料及其制备方法 |
CN109279880A (zh) * | 2018-12-05 | 2019-01-29 | 钢城集团凉山瑞海实业有限公司 | 炼铁高炉主铁沟耐火浇注料 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103922770B (zh) | 一种以废弃高炉主沟料为主要原料的自流浇注料及其制作方法 | |
CN107973610B (zh) | 一种以废弃碳化硅匣钵为主要原料的碳化硅捣打料 | |
CN103382116B (zh) | 含锆高强耐磨浇注料 | |
CN109704774B (zh) | 一种代替碳砖的高炉炉底炉缸高导热率浇注料的制备方法 | |
CN107352977A (zh) | 一种钢包用渣线砖及制备方法 | |
CN106045528B (zh) | 一种含90%以上废旧耐材的铁沟捣打料 | |
CN106946554B (zh) | 一种无水炮泥 | |
CN101284736A (zh) | 炼钢用防粘涂抹料及其制备方法 | |
CN103693977B (zh) | 一种以废旧滑板制备的摆动流槽用再生浇注料及制备方法 | |
CN106045529A (zh) | 一种含80%以上废旧耐材的铁沟浇注料 | |
CN104909772B (zh) | 含复合添加剂的铝酸钙水泥结合刚玉质浇注料及其制备方法 | |
CN106830905A (zh) | 一种炼铁高炉铁沟用耐火材料浇注料 | |
CN109020571A (zh) | 一种抗侵蚀镁碳砖及其制备方法 | |
CN105385848A (zh) | 铁矿粉球团镁质粘结剂的配制方法 | |
CN108046814A (zh) | 利用废弃浇注料再生料制备的高炉出铁沟用快干自流浇注料 | |
CN108191439A (zh) | 一种高炉渣高温碳化电炉用耐火砖及其制备方法 | |
CN110981447A (zh) | 大型高炉用碳复合无水炮泥及其制备方法 | |
CN106747510A (zh) | 一种无硅微粉铁沟浇注料及其制备方法 | |
CN107879733A (zh) | 一种高炉出铁沟用快干自流浇注料 | |
CN110372339A (zh) | 一种长寿命铁沟浇注料及其施工方法 | |
CN108558375A (zh) | 一种大高炉用长寿命主铁沟浇注料的制备方法 | |
CN113233908A (zh) | 一种再生无碳砖及其制备方法 | |
CN109608212A (zh) | 一种利用废料生产钢包包底冲击区砖的方法 | |
CN104446557B (zh) | 一种Al2O3-Cr2O3耐火浇注料 | |
CN104311078A (zh) | 一种精炼钢包渣线工作层用浇注料、制备方法及其应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180921 |
|
RJ01 | Rejection of invention patent application after publication |