CN110627485A - 高隔热钢包砖 - Google Patents

高隔热钢包砖 Download PDF

Info

Publication number
CN110627485A
CN110627485A CN201810656963.5A CN201810656963A CN110627485A CN 110627485 A CN110627485 A CN 110627485A CN 201810656963 A CN201810656963 A CN 201810656963A CN 110627485 A CN110627485 A CN 110627485A
Authority
CN
China
Prior art keywords
powder
component
mixing
temperature
raw materials
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
Application number
CN201810656963.5A
Other languages
English (en)
Inventor
张有芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201810656963.5A priority Critical patent/CN110627485A/zh
Publication of CN110627485A publication Critical patent/CN110627485A/zh
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B22D41/02—Linings
    • 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
    • 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
    • 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
    • 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
    • C04B2235/34—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
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422—Carbon
    • C04B2235/425—Graphite
    • 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
    • C04B2235/5454—Particle size related information expressed by the size of the particles or aggregates thereof nanometer sized, i.e. below 100 nm

Abstract

高隔热钢包砖由下列重量百分比的原料制成：其由下列重量百分比的原料制成：50‑60％的Al2O3粉末，40‑45%的MgO粉末，5‑10%的SiO2粉末，2‑5%的纳米碳化硅，0.1‑0.2%的酚醛树脂粉，0.2‑0.5%的木质素磺酸钙，纳米石墨占总重量的0.1‑0.5％。尖晶石有助于提高了材料的硬度；木质素磺酸钙提高了本产品几种原料的结合度；耐高温阻燃热固性的酚醛树脂粉使得耐火泥浆的粘结强度能够保持到较高温度，提高了泥浆的中、高温粘结强度；结合MgO粉末的加入提高了钢包砖的耐热性能；纳米石墨和纳米碳化硅的加入，使得材料形成以C为中心的立体网络，提高材料隔热性能和材料的强度。

Description

高隔热钢包砖
技术领域
本发明涉及钢铁冶金技术领域，特别是具有耐高温隔热性能好的钢包内的钢包砖。
背景技术
钢铁作为国民经济发展的基础，在我国工业发展中占据着重 要的地位。我国的钢铁冶金行业大多采用电炉冶炼方式，而目前 电炉冶炼设备大部分都是我国在上世纪90年代初从国外引进的设 备。建厂初期，电炉冶炼生产的钢制品种类较少，这些电炉冶炼设备完全能满足当时的需求。钢铁冶炼一般用电炉形成的钢流先注入到钢包中，然后再从 所述钢包中流出并浇注到产品模具中形成钢制品。
随着时代的进步和企业自身发展生存的需要，钢制品的种类 正逐步增多，同时对钢制品的质量提出了更严格的要求，钢制品由普通碳素钢逐步转型为以轴承钢、曲轴钢、高压管线钢、履带用钢为主导的多元化产品。为提高生产效率，目前钢铁产业常采 用的是连续铸钢（简称连铸）生产，即采用钢包连铸自开（即连 续铸钢钢液自动开浇）方式，在钢包中填充引流剂来实现钢液自 动开浇，将高温钢液连续不断地浇铸成具有一定断面形状和一定 尺寸规格铸坯的产品。目前常用的引流剂是引流砂，引流砂具有 良好的引流性能，对保证钢包较高的自开率、减轻工人的劳动强 度、提高钢制品质量以及确保连铸生产的顺利进行起到了一定的 促进作用，极大的保证了炼钢精炼工序与连铸工序衔接过程中隔绝氧气生产。
现代炼钢一般采用的钢包精炼炉主要功能：1、使钢液升温和保温功能。钢液通过电弧加热获得新的热能，这不但能使钢包精炼时可以补加合金和调整成分，也可以补加渣料，便于钢液深脱硫和脱氧。而且连铸要求的钢液开浇温度得到保证，有利干铸坯质量的提高。2、氩气搅拌功能。氩气通过装在钢包底部的透气砖向钢液中吹氛，钢液获得一定的搅拌功能。3、真空脱气功能。通过钢包吊入真空罐后，采用蒸汽喷射泵进行真空脱气，同时通过包底吹入氩气搅动钢液，可以去除钢液中的氢含量和氮含量，并进一步降低氧含量和硫含量，最终获得较高纯净度的钢液和性能优越的材质。钢包精炼炉的应用对整个企业来看，至少可增加如下得益：加快生产节奏，提高整个冶金生产效率。应用领域：钢包精炼炉被广泛用于工业、钢铁、冶金等行业。但是钢包精炼炉内必须的钢包砖却容易在1500摄氏度的高温下断裂，从而影响了生产；并且对于环保要求的提高，需要钢包砖具有高隔热性能。
发明内容
为了提供性能更优越的钢包砖，本发明提供一种高隔热钢包砖，其可在1500℃的高温下不断裂，且隔热性能好。
本发明所采用的技术方案是：高隔热钢包砖由下列重量百分比的原料制成：50-60％的Al2O3粉末，40-45%的MgO粉末， 5-10%的SiO2粉末，2-5%的纳米碳化硅， 0.1-0.2%的酚醛树脂粉，0.2-0.5%的木质素磺酸钙。
上述方案的一种优化方案为，按重量百分比的原料计，还包括有纳米石墨，纳米石墨占总重量的0.1-0.5％。
将Al2O3粉末、MgO粉末和SiO2粉末混合成为A组分；将纳米碳化硅、酚醛树脂粉和木质素磺酸钙混合成为B组分；
将A组分和B组分分别研磨，然后将A组分和B组分混合煅烧而成。
将Al2O3粉末、MgO粉末和SiO2粉末混合成为A组分；将纳米碳化硅、酚醛树脂粉和木质素磺酸钙混合成为B组分；
将A组分和B组分分别研磨，然后将A组分和B组分混合煅烧而成。
尖晶石有助于提高了材料的硬度；木质素磺酸钙提高了本产品几种原料的结合度。
耐高温阻燃热固性的酚醛树脂粉使得耐火泥浆的粘结强度能够保持到较高温度，提高了泥浆的中、高温粘结强度；结合MgO粉末的加入提高了钢包砖的耐热性能。
纳米石墨和纳米碳化硅的加入，使得材料形成以C为中心的立体网络，提高材料隔热性能和材料的强度。
本发明的有益效果是：尖晶石有助于提高了材料的硬度；木质素磺酸钙提高了本产品几种原料的结合度；耐高温阻燃热固性的酚醛树脂粉使得耐火泥浆的粘结强度能够保持到较高温度，提高了泥浆的中、高温粘结强度；结合MgO粉末的加入提高了钢包砖的耐热性能；纳米石墨和纳米碳化硅的加入，使得材料形成以C为中心的立体网络，提高材料隔热性能和材料的强度。
具体实施方式
实施例一
高隔热钢包砖由下列重量百分比的原料制成：50％的Al2O3粉末，40%的MgO粉末， 5%的SiO2粉末，4.6%的纳米碳化硅， 0.1%的酚醛树脂粉，0.2%的木质素磺酸钙；纳米石墨占总重量的0.1％。
将Al2O3粉末、MgO粉末和SiO2粉末混合成为A组分；将纳米碳化硅、酚醛树脂粉和木质素磺酸钙混合成为B组分；
将A组分和B组分分别研磨，然后将A组分和B组分混合煅烧而成。
实施例二
高隔热钢包砖由下列重量百分比的原料制成：52％的Al2O3粉末，40%的MgO粉末， 5%的SiO2粉末，2%的纳米碳化硅， 0.2%的酚醛树脂粉，0.5%的木质素磺酸钙，纳米石墨占总重量的0.3％。
将Al2O3粉末、MgO粉末和SiO2粉末混合成为A组分；将纳米碳化硅、酚醛树脂粉和木质素磺酸钙混合成为B组分；
将A组分和B组分分别研磨，然后将A组分和B组分混合煅烧而成。

Claims (3)

1.一种高隔热钢包砖，其特征是：其由下列重量百分比的原料制成：50-60％的Al2O3粉末，40-45%的MgO粉末， 5-10%的SiO2粉末，2-5%的纳米碳化硅， 0.1-0.2%的酚醛树脂粉，0.2-0.5%的木质素磺酸钙。
2.根据权利要求1所述的高隔热钢包砖，其特征是：按重量百分比的原料计，还包括有纳米石墨，所述纳米石墨占总重量的0.1-0.5％。
3.根据权利要求1所述的一种高隔热钢包砖，其特征是：将Al2O3粉末、MgO粉末和SiO2粉末混合成为A组分；将纳米碳化硅、酚醛树脂粉和木质素磺酸钙混合成为B组分；
将A组分和B组分分别研磨，然后将A组分和B组分混合煅烧而成。
CN201810656963.5A 2018-06-25 2018-06-25 高隔热钢包砖 Pending CN110627485A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810656963.5A CN110627485A (zh) 2018-06-25 2018-06-25 高隔热钢包砖

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810656963.5A CN110627485A (zh) 2018-06-25 2018-06-25 高隔热钢包砖

Publications (1)

Publication Number Publication Date
CN110627485A true CN110627485A (zh) 2019-12-31

Family

ID=68967487

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810656963.5A Pending CN110627485A (zh) 2018-06-25 2018-06-25 高隔热钢包砖

Country Status (1)

Country Link
CN (1) CN110627485A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111187992A (zh) * 2020-02-26 2020-05-22 江苏省沙钢钢铁研究院有限公司 一种切割金刚线用盘条的连铸坯生产方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111187992A (zh) * 2020-02-26 2020-05-22 江苏省沙钢钢铁研究院有限公司 一种切割金刚线用盘条的连铸坯生产方法
CN111187992B (zh) * 2020-02-26 2022-03-29 江苏省沙钢钢铁研究院有限公司 一种切割金刚线用盘条的连铸坯生产方法

Similar Documents

Publication Publication Date Title
CN109487178B (zh) 高纯净超高锰钢及其制备工艺
CN109750210A (zh) 低氧、氢含量高锰钢的生产方法
CN103627971B (zh) 大规格钎具用合金结构钢及其冶炼方法
CN101337821A (zh) Kr搅拌桨用低密度耐火浇注料
CN102230054A (zh) 超高锰钢铸钢件生产新工艺
CN108751957A (zh) 一种精炼钢包用的无碳高纯铝镁机压砖及其制备方法
CN109678479A (zh) 冶炼高纯净高锰钢的钢包底吹氩透气砖
CN113322364A (zh) 一种极地用钢的超高磷铁水低成本冶炼方法
CN110627485A (zh) 高隔热钢包砖
CN106319129A (zh) 一种制备风力发电设备铸件的短流程生产方法
CN100567216C (zh) 脱硫铁水罐衬砖
CN111825434A (zh) 一种环保型Al2O3-SiC-Ti3SiC2浇注料及其制备方法
CN104072168A (zh) 一种高温真空条件下稳定的复合镁砂及其制备方法
CN109609769B (zh) 采用富氧熔炼炉直接生产阳极板的工艺
CN101733371B (zh) 长圆形无锥度钢锭功能保护材料
CN114905033B (zh) 一种带加热功能的铁水罐结构
CN103205522A (zh) 一种半钢冶炼普碳钢的方法
CN106278316A (zh) 一种连铸中间包干式捣打料
CN110184406A (zh) 一种提高废钢加入比的炼钢方法
CN102230056A (zh) 超高锰钢冶炼变质新工艺
CN105039834A (zh) 一种耐低温球墨铸铁熔炼工艺
CN104099443A (zh) CrMo钢废料脱磷保铬冶炼工艺
CN108251598A (zh) 一种中碳高合金钢的增碳控氮生产方法
CN110627486A (zh) 高强度钢包砖
CN110627487A (zh) 高铬钢包砖

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20191231

WD01 Invention patent application deemed withdrawn after publication