CN113248241B - 一种锆刚玉的耐磨抗侵蚀复合砖及其生产工艺 - Google Patents

一种锆刚玉的耐磨抗侵蚀复合砖及其生产工艺 Download PDF

Info

Publication number
CN113248241B
CN113248241B CN202110334689.1A CN202110334689A CN113248241B CN 113248241 B CN113248241 B CN 113248241B CN 202110334689 A CN202110334689 A CN 202110334689A CN 113248241 B CN113248241 B CN 113248241B
Authority
CN
China
Prior art keywords
composite brick
parts
composite
temperature
brick
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.)
Active
Application number
CN202110334689.1A
Other languages
English (en)
Other versions
CN113248241A (zh
Inventor
汤闻平
吴建军
汤勤娟
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.)
Yixing Haike Kiln Engineering Co ltd
Original Assignee
Yixing Haike Kiln Engineering Co ltd
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 Yixing Haike Kiln Engineering Co ltd filed Critical Yixing Haike Kiln Engineering Co ltd
Priority to CN202110334689.1A priority Critical patent/CN113248241B/zh
Publication of CN113248241A publication Critical patent/CN113248241A/zh
Application granted granted Critical
Publication of CN113248241B publication Critical patent/CN113248241B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16Shaped 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
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66Monolithic refractories or refractory mortars, including those whether or not containing clay
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232Titanium oxides or titanates, e.g. rutile or anatase
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3241Chromium oxides, chromates, or oxide-forming salts thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3262Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereof, e.g. MnO
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3272Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3281Copper oxides, cuprates or oxide-forming salts thereof, e.g. CuO or Cu2O
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3294Antimony oxides, antimonates, antimonites or oxide forming salts thereof, indium antimonate
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427Silicates other than clay, e.g. water glass
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427Silicates other than clay, e.g. water glass
    • C04B2235/3463Alumino-silicates other than clay, e.g. mullite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/349Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/442Carbonates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/447Phosphates or phosphites, e.g. orthophosphate, hypophosphite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/448Sulphates or sulphites
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/606Drying
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74Physical characteristics
    • C04B2235/77Density
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607Thermal properties, e.g. thermal expansion coefficient
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9669Resistance against chemicals, e.g. against molten glass or molten salts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

本发明公开了一种锆刚玉的耐磨抗侵蚀复合砖及其生产工艺,所述复合砖包括以下原料:ZrSiO4、Al2O3、Al2(SiO4)O、MgCO3、Fe2O3、Sb2O3、Cr2O3、TiO2、MnO、CuO、Na2CO3、高岭土、环氧树脂、复合粘结剂、减水剂和结合剂;所述复合砖的制备方法为:首先称取原料,并粉碎混合,然后将粉碎后的物料与水混合,并研磨干燥处理,然后向研磨后的物料中加入环氧树脂、复合粘结剂、减水剂和结合剂,搅拌均匀,最后将混合物料压制成型,并进行干燥、烧制,即可得到复合砖成品;通过本发明制备的复合砖具有较高的致密性以及结合强度,抗渣侵蚀性能较强,适宜大量推广。

Description

一种锆刚玉的耐磨抗侵蚀复合砖及其生产工艺
技术领域
本发明涉及耐火材料技术领域,具体是涉及一种锆刚玉的耐磨抗侵蚀复合砖及其生产工艺。
背景技术
目前危废处置行业的焚烧系统耐火材料,多采用刚玉质、铬刚玉质、锆刚玉质等材质耐火砖筑炉,这类砖具有耐火、高荷重软化温度、耐磨性能、化学稳定性、热震稳定性及抗渣浸蚀性好等优点,可提高焚烧炉的使用寿命,提高生产率,降低生产成本。熔铸锆刚玉材料在熔窑上部结构内衬使用较广,可以提高熔窑寿命,满足玻璃熔化和澄清温度升高要求。
但是,现有技术中的锆刚玉复合砖在烧制过程中,各材料间结合强度低,致密性差,气孔高,导致复合砖的热震稳定性较差,抗渣浸蚀性能不够理想;同时,现有技术中锆刚玉复合砖在制备过程中,砖体内部应力较大,极易造成砖体开裂。
发明内容
针对上述存在的技术问题,本发明提供了一种结合强度高、致密性好的锆刚玉的耐磨抗侵蚀复合砖及其生产工艺。
本发明的技术方案为:一种锆刚玉的耐磨抗侵蚀复合砖,包括以下重量份的原料:ZrSiO4 28-45份、Al2O3 18-26份、Al2(SiO4)O 7-13份、MgCO3 5-12份、 Fe2O3 9-16份、Sb2O35-9份、Cr2O3 4-11份、TiO2 3-7份、MnO 2-5份、CuO 2-8 份、Na2CO3 4-9份、高岭土4-16份、环氧树脂7-16份、复合粘结剂0.5-1.2份、减水剂0.2-0.4份、结合剂1-1.5份;
结合剂为铬合磷酸盐结合剂;
复合粘结剂由水玻璃粘结剂和活性树脂粘接剂按照体积比1:1组成;
减水剂由木质素磺酸钙、环氧乙烷-环氧丙烷共聚物和亚硫酸氢钠按照体积比3:1:2组成。
一种锆刚玉的耐磨抗侵蚀复合砖的生产工艺,包括以下步骤:
S1、按比例称取ZrSiO4、Al2O3、Al2(SiO4)O、MgCO3、Fe2O3、Sb2O3、Cr2O3、 TiO2、MnO、CuO、Na2CO3和高岭土,混合均匀后粉碎,并过90-130目筛,获得混合物料细粉,备用;
S2、将步骤S1所得混合物料细粉与水按照体积比1:1-3混合均匀,得到混合浆料,然后将混合浆料使用球磨机研磨15-50min,使混合浆料细度达到 135-360目;最后将研磨后的浆料在350-700W的功率下微波加热干燥处理2-5h,使得浆料的含水率控制在25-45%,自然冷却至室温;
S3、向步骤S2所得浆料中依次加入环氧树脂、复合粘结剂、减水剂和结合剂,然后在900-1500r/min,700-900W条件下,超声搅拌15-45min,静置陈化 1-3h,得到混合湿料;
S4、将步骤S3所得混合湿料加入模具中在等静压机中在110-180℃条件下静压成型,控制等静压机工作压力为15-29MPa,成型砖坯自然养护25-40h,再在95-105℃的温度下干燥至含水率≤4%,得到复合砖初坯;
S5、将步骤S4所得复合砖初坯送入干燥窑进行干燥,控制干燥窑的温度为 480-690℃,干燥时间为3-5h,然后将干燥后的复合砖初坯放入烧制窑,控制烧制温度为800-1000℃,烧制时间为2-4h,出窑后自然冷却至室温后,即得复合砖成品。
进一步地,高岭土使用之前,采用5-8%浓度的氢氧化钠浸泡15-25min,然后在150-250℃温度条件下煅烧40-75min;通过对高岭土进行碱浸泡后高温煅烧,能改善高岭土的内部构造,进而提高复合砖的抗侵蚀性能。
进一步地,步骤S1完成后,对混合物料细粉进行压力喷雾造粒,二次颗粒在40-80目,并控制二次颗粒含水率2-8%,通过对混合物料进行二次粉碎,使得粉碎后的物料颗粒更加均匀,降低烧制后的复合砖的气孔率,提高复合砖的致密性。
进一步地,步骤S5中,干燥后的复合砖初坯放入烧制窑之前在300-400℃条件下,预热处理1-3h,通过对复合砖初坯进行预热处理,能够有效避免复合砖初在烧制过程中开裂,降低复合砖的次品率。
进一步地,步骤S5中,复合砖初烧制完成后,封闭烧制窑,并在1000-1200℃温度条件下继续烧制20-50min,当烧制窑内温度≤150℃后,打开烧制窑,通过以上操作能够提高复合砖的抗渣侵蚀性能。
进一步地,步骤S5中复合砖初坯干燥时,先以3-5℃/min的速率将复合砖初坯升温至250-380℃,保温0.5-1.5h,再以4-8℃/min的速率升温至380-450℃,保温1-3h,再以6-9℃/min的速率升温至450-690℃,保温0.5-1h;以不同的升温速率对复合砖初坯进行加热干燥,能够避免复合砖初坯加热过程中产生形变,提高复合砖初坯的结构强度。
进一步地,步骤S5完成后,将复合砖成品置入压力反应釜,充入浓度 0.5-2mol/L的碳化硅粉溶液至完全淹没复合砖成品,在0.1-0.8MPa条件下进行压力渗透20-40min,渗透完成后干燥处理,通过在复合砖成品表面通过压力渗透碳化硅粉,使得碳化硅粉在复合砖成品表面形成致密的隔热层,提高复合砖成品的耐压强度、抗侵蚀性能和热稳定性。
进一步地,步骤S1进行之前,将ZrSiO4、Al2O3和Al2(SiO4)O混合均匀,然后加入混合物料质量15-35%的氯化钠溶液,在800-1200r/min条件下干磨 8-20min,然后在800-1000W的红外功率下加热0.5-1.5h,冷却至室温后用蒸馏水洗涤至中性,并干燥处理,通过对ZrSiO4、Al2O3和Al2(SiO4)O进行以上操作,能够提高复合砖成品对抗重金属及重金属碱的能力,进而提高复合砖成品的抗侵蚀性能。
与现有技术相比,本发明的有益效果是:本发明在制备复合砖过程中,所用原材料来源广、成本低廉,而且本发明的制作过程低能、环保;同时本发明复合砖制备过程中,各材料间的结合强度高,致密性好,气孔率低,热震稳定性较好、抗渣浸蚀性能好,通过对ZrSiO4、Al2O3和Al2(SiO4)O进行干磨处理,以及对高岭土进行了碱浸泡以及高温煅烧处理,能改善高岭土的内部构造,提高了复合砖成品对抗重金属及重金属碱的能力,进而提高复合砖成品的抗侵蚀性能;本发明步骤步骤S5中以不同的升温速率对复合砖初坯进行加热干燥,避免复合砖初坯加热过程中产生形变,提高复合砖初坯的结构强度,同时对复合砖初坯进行预热处理,能够有效避免复合砖初在烧制过程中开裂,降低复合砖的次品率;复合砖初烧制完成后,封闭烧制窑继续对复合砖成品进行密封烧制,能够提高复合砖的抗渣侵蚀性能,通过在复合砖成品表面通过压力渗透碳化硅粉,使得碳化硅粉在复合砖成品表面形成致密的隔热层,提高复合砖成品的耐压强度、抗侵蚀性能和热稳定性。
具体实施方式
实施例1:一种锆刚玉的耐磨抗侵蚀复合砖,包括以下重量份的原料:ZrSiO4 28份、Al2O3 18份、Al2(SiO4)O 7份、MgCO3 5份、Fe2O3 9份、Sb2O3 5份、Cr2O3 4份、TiO2 3份、MnO2份、CuO 2份、Na2CO3 4份、高岭土4份、环氧树脂7 份、复合粘结剂0.5份、减水剂0.2份、结合剂1份;
结合剂为铬合磷酸盐结合剂;
复合粘结剂由水玻璃粘结剂和活性树脂粘接剂按照体积比1:1组成;
减水剂由木质素磺酸钙、环氧乙烷-环氧丙烷共聚物和亚硫酸氢钠按照体积比3:1:2组成。
一种锆刚玉的耐磨抗侵蚀复合砖的生产工艺,包括以下步骤:
S1、按比例称取ZrSiO4、Al2O3、Al2(SiO4)O、MgCO3、Fe2O3、Sb2O3、Cr2O3、 TiO2、MnO、CuO、Na2CO3和高岭土,混合均匀后粉碎,并过90-130目筛,获得混合物料细粉,备用;
S2、将步骤S1所得混合物料细粉与水按照体积比1:1混合均匀,得到混合浆料,然后将混合浆料使用球磨机研磨15min,使混合浆料细度达到135目;最后将研磨后的浆料在350W的功率下微波加热干燥处理2h,使得浆料的含水率控制在25%,自然冷却至室温;
S3、向步骤S2所得浆料中依次加入环氧树脂、复合粘结剂、减水剂和结合剂,然后在900r/min,700W条件下,超声搅拌15min,静置陈化1h,得到混合湿料;
S4、将步骤S3所得混合湿料加入模具中在等静压机中在110℃条件下静压成型,控制等静压机工作压力为15MPa,成型砖坯自然养护25h,再在95℃的温度下干燥至含水率为4%,得到复合砖初坯;
S5、将步骤S4所得复合砖初坯送入干燥窑进行干燥,控制干燥窑的温度为 480℃,干燥时间为3h,然后将干燥后的复合砖初坯放入烧制窑,控制烧制温度为800℃,烧制时间为2h,出窑后自然冷却至室温后,即得复合砖成品。
实施例2、一种锆刚玉的耐磨抗侵蚀复合砖,包括以下重量份的原料:ZrSiO4 32份、Al2O3 22份、Al2(SiO4)O 10份、MgCO3 9份、Fe2O3 12份、Sb2O3 8份、 Cr2O3 9份、TiO2 6份、MnO 4份、CuO 5份、Na2CO3 6份、高岭土13份、环氧树脂11份、复合粘结剂0.9份、减水剂0.3份、结合剂1.2份;
结合剂为铬合磷酸盐结合剂;
复合粘结剂由水玻璃粘结剂和活性树脂粘接剂按照体积比1:1组成;
减水剂由木质素磺酸钙、环氧乙烷-环氧丙烷共聚物和亚硫酸氢钠按照体积比3:1:2组成。
一种锆刚玉的耐磨抗侵蚀复合砖的生产工艺,包括以下步骤:
S1、按比例称取ZrSiO4、Al2O3、Al2(SiO4)O、MgCO3、Fe2O3、Sb2O3、Cr2O3、 TiO2、MnO、CuO、Na2CO3和高岭土,将ZrSiO4、Al2O3和Al2(SiO4)O混合均匀,然后加入混合物料质量15%的氯化钠溶液,在800r/min条件下干磨20min,然后在800W的红外功率下加热0.5h,冷却至室温后用蒸馏水洗涤至中性,并干燥处理,通过对ZrSiO4、Al2O3和Al2(SiO4)O进行以上操作,能够提高复合砖成品对抗重金属及重金属碱的能力,进而提高复合砖成品的抗侵蚀性能;将高岭土采用5%浓度的氢氧化钠浸泡15min,然后在150℃温度条件下煅烧40min;通过对高岭土进行碱浸泡后高温煅烧,能改善高岭土的内部构造,进而提高复合砖的抗侵蚀性能,然后将所有材料混合均匀后粉碎,并过90目筛,获得混合物料细粉,备用;
S2、将步骤S1所得压力喷雾造粒后的混合物料细粉与水按照体积比1:2混合均匀,得到混合浆料,然后将混合浆料使用球磨机研磨35min,使混合浆料细度达到290目;最后将研磨后的浆料在490W的功率下微波加热干燥处理4h,使得浆料的含水率控制在30%,自然冷却至室温;
S3、向步骤S2所得浆料中依次加入环氧树脂、复合粘结剂、减水剂和结合剂,然后在1200r/min,810W条件下,超声搅拌33min,静置陈化2h,得到混合湿料;
S4、将步骤S3所得混合湿料加入模具中在等静压机中在136℃条件下静压成型,控制等静压机工作压力为24MPa,成型砖坯自然养护30h,再在100℃的温度下干燥至含水率为3%,得到复合砖初坯;
S5、将步骤S4所得复合砖初坯送入干燥窑进行干燥,控制干燥窑的温度为 525℃,干燥时间为4h,然后将干燥后的复合砖初坯放入烧制窑,控制烧制温度为925℃,烧制时间为3h,出窑后自然冷却至室温后,即得复合砖成品。
实施例3、一种锆刚玉的耐磨抗侵蚀复合砖,包括以下重量份的原料:ZrSiO4 45份、Al2O3 26份、Al2(SiO4)O 13份、MgCO3 12份、Fe2O3 16份、Sb2O3 9份、 Cr2O3 11份、TiO2 7份、MnO 5份、CuO 8份、Na2CO3 9份、高岭土16份、环氧树脂16份、复合粘结剂1.2份、减水剂0.4份、结合剂1.5份;
结合剂为铬合磷酸盐结合剂;
复合粘结剂由水玻璃粘结剂和活性树脂粘接剂按照体积比1:1组成;
减水剂由木质素磺酸钙、环氧乙烷-环氧丙烷共聚物和亚硫酸氢钠按照体积比3:1:2组成。
一种锆刚玉的耐磨抗侵蚀复合砖的生产工艺,包括以下步骤:
S1、按比例称取ZrSiO4、Al2O3、Al2(SiO4)O、MgCO3、Fe2O3、Sb2O3、Cr2O3、 TiO2、MnO、CuO、Na2CO3和高岭土,将ZrSiO4、Al2O3和Al2(SiO4)O混合均匀,然后加入混合物料质量15%的氯化钠溶液,在800r/min条件下干磨20min,然后在800W的红外功率下加热0.5h,冷却至室温后用蒸馏水洗涤至中性,并干燥处理,通过对ZrSiO4、Al2O3和Al2(SiO4)O进行以上操作,能够提高复合砖成品对抗重金属及重金属碱的能力,进而提高复合砖成品的抗侵蚀性能;将高岭土采用8%浓度的氢氧化钠浸泡25min,然后在250℃温度条件下煅烧75min;通过对高岭土进行碱浸泡后高温煅烧,能改善高岭土的内部构造,进而提高复合砖的抗侵蚀性能,然后将所有材料混合均匀后粉碎,并过130目筛,获得混合物料细粉,备用;对混合物料细粉进行压力喷雾造粒,二次颗粒在80目,并控制二次颗粒含水率3%,通过对混合物料进行二次粉碎,使得粉碎后的物料颗粒更加均匀,降低烧制后的复合砖的气孔率,提高复合砖的致密性;
S2、将步骤S1所得压力喷雾造粒后的混合物料细粉与水按照体积比1:3混合均匀,得到混合浆料,然后将混合浆料使用球磨机研磨50min,使混合浆料细度达到360目;最后将研磨后的浆料在700W的功率下微波加热干燥处理5h,使得浆料的含水率控制在45%,自然冷却至室温;
S3、向步骤S2所得浆料中依次加入环氧树脂、复合粘结剂、减水剂和结合剂,然后在1500r/min,900W条件下,超声搅拌45min,静置陈化3h,得到混合湿料;
S4、将步骤S3所得混合湿料加入模具中在等静压机中在180℃条件下静压成型,控制等静压机工作压力为29MPa,成型砖坯自然养护40h,再在105℃的温度下干燥至含水率为4%,得到复合砖初坯;
S5、将步骤S4所得复合砖初坯送入干燥窑进行干燥,控制干燥窑的温度为 690℃,干燥时间为5h,然后将干燥后的复合砖初坯放入烧制窑,控制烧制温度为1000℃,烧制时间为4h,出窑后自然冷却至室温后,即得复合砖成品。
实施例4、一种锆刚玉的耐磨抗侵蚀复合砖,包括以下重量份的原料:ZrSiO4 28份、Al2O3 18-份、Al2(SiO4)O 7份、MgCO3 5份、Fe2O3 9份、Sb2O3 5份、Cr2O3 4份、TiO2 3份、MnO 2份、CuO 2份、Na2CO3 4份、高岭土4份、环氧树脂7 份、复合粘结剂0.5份、减水剂0.2份、结合剂1份;
结合剂为铬合磷酸盐结合剂;
复合粘结剂由水玻璃粘结剂和活性树脂粘接剂按照体积比1:1组成;
减水剂由木质素磺酸钙、环氧乙烷-环氧丙烷共聚物和亚硫酸氢钠按照体积比3:1:2组成。
一种锆刚玉的耐磨抗侵蚀复合砖的生产工艺,包括以下步骤:
S1、按比例称取ZrSiO4、Al2O3、Al2(SiO4)O、MgCO3、Fe2O3、Sb2O3、Cr2O3、 TiO2、MnO、CuO、Na2CO3和高岭土,混合均匀后粉碎,并过90-130目筛,获得混合物料细粉,备用;
S2、将步骤S1所得混合物料细粉与水按照体积比1:2混合均匀,得到混合浆料,然后将混合浆料使用球磨机研磨32min,使混合浆料细度达到245目;最后将研磨后的浆料在490W的功率下微波加热干燥处理4h,使得浆料的含水率控制在32%,自然冷却至室温;
S3、向步骤S2所得浆料中依次加入环氧树脂、复合粘结剂、减水剂和结合剂,然后在1250r/min,825W条件下,超声搅拌30min,静置陈化2h,得到混合湿料;
S4、将步骤S3所得混合湿料加入模具中在等静压机中在136℃条件下静压成型,控制等静压机工作压力为25MPa,成型砖坯自然养护36h,再在105℃的温度下干燥至含水率为3%,得到复合砖初坯;
S5、将步骤S4所得复合砖初坯送入干燥窑进行干燥,先以3℃/min的速率将复合砖初坯升温至250℃,保温0.5h,再以4℃/min的速率升温至380℃,保温1h,再以6℃/min的速率升温至450℃,保温0.5h;以不同的升温速率对复合砖初坯进行加热干燥,能够避免复合砖初坯加热过程中产生形变,提高复合砖初坯的结构强度;干燥后的复合砖初坯放入烧制窑之前在300℃条件下,预热处理1h,通过对复合砖初坯进行预热处理,能够有效避免复合砖初在烧制过程中开裂,降低复合砖的次品率;然后将干燥后的复合砖初坯放入烧制窑,控制烧制温度为1000℃,烧制时间为4h,出窑后自然冷却至室温后,即得复合砖成品。
实施例5、一种锆刚玉的耐磨抗侵蚀复合砖,包括以下重量份的原料:ZrSiO4 45份、Al2O3 26份、Al2(SiO4)O 13份、MgCO3 12份、Fe2O3 16份、Sb2O3 9份、 Cr2O3 11份、TiO2 7份、MnO 5份、CuO 8份、Na2CO3 9份、高岭土16份、环氧树脂16份、复合粘结剂1.2份、减水剂0.4份、结合剂1.5份;
结合剂为铬合磷酸盐结合剂;
复合粘结剂由水玻璃粘结剂和活性树脂粘接剂按照体积比1:1组成;
减水剂由木质素磺酸钙、环氧乙烷-环氧丙烷共聚物和亚硫酸氢钠按照体积比3:1:2组成。
一种锆刚玉的耐磨抗侵蚀复合砖的生产工艺,包括以下步骤:
S1、按比例称取ZrSiO4、Al2O3、Al2(SiO4)O、MgCO3、Fe2O3、Sb2O3、Cr2O3、 TiO2、MnO、CuO、Na2CO3和高岭土,混合均匀后粉碎,并过130目筛,获得混合物料细粉,备用;
S2、将步骤S1所得混合物料细粉与水按照体积比1:3混合均匀,得到混合浆料,然后将混合浆料使用球磨机研磨50min,使混合浆料细度达到360目;最后将研磨后的浆料在700W的功率下微波加热干燥处理5h,使得浆料的含水率控制在45%,自然冷却至室温;
S3、向步骤S2所得浆料中依次加入环氧树脂、复合粘结剂、减水剂和结合剂,然后在1500r/min,900W条件下,超声搅拌45min,静置陈化2h,得到混合湿料;
S4、将步骤S3所得混合湿料加入模具中在等静压机中在180℃条件下静压成型,控制等静压机工作压力为29MPa,成型砖坯自然养护40h,再在105℃的温度下干燥至含水率为4%,得到复合砖初坯;
S5、将步骤S4所得复合砖初坯送入干燥窑进行干燥,先以4℃/min的速率将复合砖初坯升温至300℃,保温1h,再以6℃/min的速率升温至425℃,保温 2h,再以8℃/min的速率升温至480℃,保温1h;以不同的升温速率对复合砖初坯进行加热干燥,能够避免复合砖初坯加热过程中产生形变,提高复合砖初坯的结构强度;干燥后的复合砖初坯放入烧制窑之前在320℃条件下,预热处理2h,通过对复合砖初坯进行预热处理,能够有效避免复合砖初在烧制过程中开裂,降低复合砖的次品率;然后将干燥后的复合砖初坯放入烧制窑,控制烧制温度为 925℃,烧制时间为3h,复合砖初烧制完成后,封闭烧制窑,并在1100℃温度条件下继续烧制40min,当烧制窑内温度为150℃后,打开烧制窑,通过以上操作能够提高复合砖的抗渣侵蚀性能;出窑后自然冷却至室温后,即得复合砖成品,最后将复合砖成品置入压力反应釜,充入浓度0.5mol/L的碳化硅粉溶液至完全淹没复合砖成品,在0.1MPa条件下进行压力渗透20min,渗透完成后干燥处理,通过在复合砖成品表面通过压力渗透碳化硅粉,使得碳化硅粉在复合砖成品表面形成致密的隔热层,提高复合砖成品的耐压强度、抗侵蚀性能和热稳定性。
实施例6、一种锆刚玉的耐磨抗侵蚀复合砖,包括以下重量份的原料:ZrSiO4 33份、Al2O3 25份、Al2(SiO4)O 11份、MgCO3 9份、Fe2O3 13份、Sb2O3 8份、 Cr2O3 8份、TiO2 6份、MnO 2份、CuO 5份、Na2CO3 7份、高岭土11份、环氧树脂12份、复合粘结剂1份、减水剂0.3份、结合剂1.2份;
结合剂为铬合磷酸盐结合剂;
复合粘结剂由水玻璃粘结剂和活性树脂粘接剂按照体积比1:1组成;
减水剂由木质素磺酸钙、环氧乙烷-环氧丙烷共聚物和亚硫酸氢钠按照体积比3:1:2组成。
一种锆刚玉的耐磨抗侵蚀复合砖的生产工艺,包括以下步骤:
S1、按比例称取ZrSiO4、Al2O3、Al2(SiO4)O、MgCO3、Fe2O3、Sb2O3、Cr2O3、 TiO2、MnO、CuO、Na2CO3和高岭土,将ZrSiO4、Al2O3和Al2(SiO4)O混合均匀,然后加入混合物料质量35%的氯化钠溶液,在1200r/min条件下干磨20min,然后在1000W的红外功率下加热1.5h,冷却至室温后用蒸馏水洗涤至中性,并干燥处理,通过对ZrSiO4、Al2O3和Al2(SiO4)O进行以上操作,能够提高复合砖成品对抗重金属及重金属碱的能力,进而提高复合砖成品的抗侵蚀性能;将高岭土采用8%浓度的氢氧化钠浸泡25min,然后在150℃温度条件下煅烧75min;通过对高岭土进行碱浸泡后高温煅烧,能改善高岭土的内部构造,进而提高复合砖的抗侵蚀性能,然后将所有材料混合均匀后粉碎,并过130目筛,获得混合物料细粉,备用;对混合物料细粉进行压力喷雾造粒,二次颗粒在80目,并控制二次颗粒含水率为5%,通过对混合物料进行二次粉碎,使得粉碎后的物料颗粒更加均匀,降低烧制后的复合砖的气孔率,提高复合砖的致密性;
S2、将步骤S1所得压力喷雾造粒后的混合物料细粉与水按照体积比1:2混合均匀,得到混合浆料,然后将混合浆料使用球磨机研磨36min,使混合浆料细度达到280目;最后将研磨后的浆料在450W的功率下微波加热干燥处理4h,使得浆料的含水率控制在33%,自然冷却至室温;
S3、向步骤S2所得浆料中依次加入环氧树脂、复合粘结剂、减水剂和结合剂,然后在1360r/min,900W条件下,超声搅拌45min,静置陈化3h,得到混合湿料;
S4、将步骤S3所得混合湿料加入模具中在等静压机中在180℃条件下静压成型,控制等静压机工作压力为29MPa,成型砖坯自然养护40h,再在105℃的温度下干燥至含水率为4%,得到复合砖初坯;
S5、将步骤S4所得复合砖初坯送入干燥窑进行干燥,先以5℃/min的速率将复合砖初坯升温至380℃,保温1.5h,再以8℃/min的速率升温至450℃,保温3h,再以9℃/min的速率升温至690℃,保温1h;以不同的升温速率对复合砖初坯进行加热干燥,能够避免复合砖初坯加热过程中产生形变,提高复合砖初坯的结构强度;干燥后的复合砖初坯放入烧制窑之前在400℃条件下,预热处理 3h,通过对复合砖初坯进行预热处理,能够有效避免复合砖初在烧制过程中开裂,降低复合砖的次品率;然后将干燥后的复合砖初坯放入烧制窑,控制烧制温度为 1000℃,烧制时间为4h,复合砖初烧制完成后,封闭烧制窑,并在1200℃温度条件下继续烧制50min,当烧制窑内温度下降到120℃后,打开烧制窑,通过以上操作能够提高复合砖的抗渣侵蚀性能;出窑后自然冷却至室温后,即得复合砖成品,最后将复合砖成品置入压力反应釜,充入浓度2mol/L的碳化硅粉溶液支完全淹没复合砖成品,在0.8MPa条件下进行压力渗透40min,渗透完成后干燥处理,通过在复合砖成品表面通过压力渗透碳化硅粉,使得碳化硅粉在复合砖成品表面形成致密的隔热层,提高复合砖成品的耐压强度、抗侵蚀性能和热稳定性。
试验例:对实施例1-6所得复合砖成品进行相关性能检测,结果如表1所示;
表1:不同条件下复合砖成品相关性能检测结果;
Figure BDA0002996946580000121
通过表1数据对比可知,实施例2中,由于将ZrSiO4、Al2O3和Al2(SiO4)O 混合均匀,然后加入混合物料治疗15%的氯化钠溶液,在800r/min条件下干磨 20min,然后800W的红外功率下加热0.5h,冷却至室温后用蒸馏水洗涤至中性,并干燥处理;以及对高岭土进行了碱浸泡以及高温煅烧处理,能改善高岭土的内部构造,提高了复合砖成品对抗重金属及重金属碱的能力,进而提高复合砖成品的抗侵蚀性能;实施例3中,由于对步骤S1得到的混合物料细粉进行压力喷雾造粒,使得粉碎后的物料颗粒更加均匀,降低了烧制后的复合砖的气孔率,提高复合砖的致密性,进而提高了复合砖成品的结构强度;实施例4中,由于在步骤S5中以不同的升温速率对复合砖初坯进行加热干燥,避免复合砖初坯加热过程中产生形变,提高复合砖初坯的结构强度,同时对复合砖初坯进行预热处理,能够有效避免复合砖初在烧制过程中开裂,降低复合砖的次品率;实施例5中,由于在步骤S5中,复合砖初烧制完成后,封闭烧制窑继续对复合砖成品进行密封烧制,能够提高复合砖的抗渣侵蚀性能,通过在复合砖成品表面通过压力渗透碳化硅粉,使得碳化硅粉在复合砖成品表面形成致密的隔热层,提高复合砖成品的耐压强度、抗侵蚀性能和热稳定性,实施例6中,通过对各反应步骤进行综合优化,使所得复合砖成品的各项性能都得到了进一步的提升。

Claims (1)

1.一种锆刚玉的耐磨抗侵蚀复合砖,其特征在于,包括以下重量份的原料:ZrSiO4 28-45份、Al2O3 18-26份、Al2(SiO4)O 7-13份、MgCO3 5-12份、Fe2O3 9-16份、Sb2O3 5-9份、Cr2O34-11份、TiO2 3-7份、MnO 2-5份、CuO 2-8份、Na2CO34-9份、高岭土4-16份、环氧树脂7-16份、复合粘结剂0.5-1.2份、减水剂0.2-0.4份、结合剂1-1.5份;
所述结合剂为铬合磷酸盐结合剂;
所述复合粘结剂由水玻璃粘结剂和活性树脂粘接剂按照体积比1:1组成;
所述减水剂由木质素磺酸钙、环氧乙烷-环氧丙烷共聚物和亚硫酸氢钠按照体积比3:1:2组成;
所述复合砖的生产工艺,包括以下步骤:
S1、按比例称取所述ZrSiO4、Al2O3、Al2(SiO4)O、MgCO3、Fe2O3、Sb2O3、Cr2O3、TiO2、MnO、CuO、Na2CO3和高岭土,混合均匀后粉碎,并过90-130目筛,获得混合物料细粉,备用;
S2、将步骤S1所得混合物料细粉与水按照体积比1:1-3混合均匀,得到混合浆料,然后将所述混合浆料使用球磨机研磨15-50min,使混合浆料细度达到135-360目;最后将研磨后的浆料在350-700W的功率下微波加热干燥处理2-5h,使得浆料的含水率控制在25-45%,自然冷却至室温;
S3、向步骤S2所得浆料中依次加入所述环氧树脂、复合粘结剂、减水剂和结合剂,然后在900-1500r/min,700-900W条件下,超声搅拌15-45min,静置陈化1-3h,得到混合湿料;
S4、将步骤S3所得混合湿料加入模具中在等静压机中在110-180℃条件下静压成型,控制等静压机工作压力为15-29MPa,成型砖坯自然养护25-40h,再在95-105℃的温度下干燥至含水率≤4%,得到复合砖初坯;
S5、将步骤S4所得复合砖初坯送入干燥窑进行干燥,控制干燥窑的温度为480-690℃,干燥时间为3-5h,然后将干燥后的复合砖初坯放入烧制窑,控制烧制温度为800-1000℃,烧制时间为2-4h,出窑后自然冷却至室温后,即得复合砖成品;
步骤S1完成后,对所述混合物料细粉进行压力喷雾造粒,二次颗粒在40-80目,并控制二次颗粒含水率2-8%;
步骤S5中,所述干燥后的复合砖初坯放入烧制窑之前在300-400℃条件下,预热处理1-3h;
步骤S5中复合砖初坯干燥时,先以3-5℃/min的速率将复合砖初坯升温至250-380℃,保温0.5-1.5h,再以4-8℃/min的速率升温至380-450℃,保温1-3h,再以6-9℃/min的速率升温至450-690℃,保温0.5-1h;
所述高岭土使用之前,采用5-8%浓度的氢氧化钠浸泡15-25min,然后在150-250℃温度条件下煅烧40-75min;
步骤S5中,复合砖初烧制完成后,封闭烧制窑,并在1000-1200℃温度条件下继续烧制20-50min,当烧制窑内温度≤150℃后,打开烧制窑;
步骤S5完成后,将所述复合砖成品置入压力反应釜,充入浓度0.5-2mol/L的碳化硅粉溶液至完全淹没复合砖成品,在0.1-0.8MPa条件下进行压力渗透20-40min,渗透完成后干燥处理;
步骤S1进行之前,将所述ZrSiO4、Al2O3和Al2(SiO4)O混合均匀,然后加入混合物料质量15-35%的氯化钠溶液,在800-1200r/min条件下干磨8-20min,然后在800-1000W的红外功率下加热0.5-1.5h,冷却至室温后用蒸馏水洗涤至中性,并干燥处理。
CN202110334689.1A 2021-03-29 2021-03-29 一种锆刚玉的耐磨抗侵蚀复合砖及其生产工艺 Active CN113248241B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110334689.1A CN113248241B (zh) 2021-03-29 2021-03-29 一种锆刚玉的耐磨抗侵蚀复合砖及其生产工艺

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110334689.1A CN113248241B (zh) 2021-03-29 2021-03-29 一种锆刚玉的耐磨抗侵蚀复合砖及其生产工艺

Publications (2)

Publication Number Publication Date
CN113248241A CN113248241A (zh) 2021-08-13
CN113248241B true CN113248241B (zh) 2022-04-08

Family

ID=77181240

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110334689.1A Active CN113248241B (zh) 2021-03-29 2021-03-29 一种锆刚玉的耐磨抗侵蚀复合砖及其生产工艺

Country Status (1)

Country Link
CN (1) CN113248241B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113979760B (zh) * 2021-11-16 2022-11-15 宜兴市海科耐火材料制品有限公司 一种用于危废气化熔融炉的高热震铬刚玉砖的制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2249418A1 (de) * 1972-10-09 1974-05-02 Didier Werke Ag Mit wasser kaltabbindende feuerfeste massen und moertel
CN101838157A (zh) * 2010-05-25 2010-09-22 陕西科技大学 碳/碳复合材料纳米碳化硅-莫来石复合外涂层的制备方法
CN103951445A (zh) * 2014-04-04 2014-07-30 吕宏伟 一种低渗出电熔锆刚玉砖的制作方法
CN105130450A (zh) * 2015-06-30 2015-12-09 湖州巨旺墙体材料有限公司 一种抗腐蚀耐火锆刚玉砖

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2249418A1 (de) * 1972-10-09 1974-05-02 Didier Werke Ag Mit wasser kaltabbindende feuerfeste massen und moertel
CN101838157A (zh) * 2010-05-25 2010-09-22 陕西科技大学 碳/碳复合材料纳米碳化硅-莫来石复合外涂层的制备方法
CN103951445A (zh) * 2014-04-04 2014-07-30 吕宏伟 一种低渗出电熔锆刚玉砖的制作方法
CN105130450A (zh) * 2015-06-30 2015-12-09 湖州巨旺墙体材料有限公司 一种抗腐蚀耐火锆刚玉砖

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZrSiO4/ Al2O3复相耐磨陶瓷材料的制备;耿铂;《中国学术期刊(光盘版)工程科技I辑》;20091115;第B015-43页 *

Also Published As

Publication number Publication date
CN113248241A (zh) 2021-08-13

Similar Documents

Publication Publication Date Title
CN109320219B (zh) 一种高性能铝铬质耐火材料及其制作方法与应用
WO2020056470A1 (en) Sintered geopolymer compositions and articles
CN110746180B (zh) 炼铜阳极炉用烧成铝铬锆滑板砖及其制备方法
CN113248241B (zh) 一种锆刚玉的耐磨抗侵蚀复合砖及其生产工艺
CN107226682A (zh) 一种高温耐火陶瓷及其制备方法
CN116332631A (zh) 一种铬铝镁锆耐火砖及其制备方法
CN109369196A (zh) 一种感应炉用石英质捣打料及其制备方法
CN113213887A (zh) 一种高抗热震性陶瓷器皿及其制备方法
CN106431434B (zh) 一种闭孔型矾土基莫来石材料及其制备方法
CN108484203A (zh) 一种利用废弃耐火砖制备的耐热保温砖
CN110577397A (zh) 一种用废粘土砖生产的高性能粘土砖及其制备方法
CN112341218B (zh) 放电等离子烧结高性能镁锆复合陶瓷砖制备方法
CN108895841A (zh) 一种耐磨扬料砖及其制造方法
CN109369203A (zh) 高强度中密度莫来石砖及其制备方法
CN107973586A (zh) 处理铬铁渣的方法和陶瓷砖
CN110040994B (zh) 一种陶粒砂及其加工工艺
CN113548901A (zh) 一种抗渣侵蚀的气化熔融炉用高强度炉熔砖及其制备方法
CN115321970B (zh) 一种锌挥发回转窑用红柱石-铁铝尖晶石复合砖及其制备方法
CN111393176A (zh) 新型高炉用复合刚玉砖的生产方法
CN104876607A (zh) 锅炉用耐火砖的制备方法
CN105174975A (zh) 一种致密抗侵蚀增强烧结氧化锆大砖及其生产工艺
CN108610072A (zh) 一种新型复合耐火材料及其制备方法
CN114751726B (zh) 一种陶瓷用环保加工工艺
CN114180944B (zh) 一种大尺寸工业陶瓷热压制作方法
CN116655356B (zh) 一种低碳镁锆碳质转炉滑板砖及其制备方法

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
GR01 Patent grant
GR01 Patent grant