CN111233501A - 一种用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯及其制备方法 - Google Patents
一种用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯及其制备方法 Download PDFInfo
- Publication number
- CN111233501A CN111233501A CN202010201428.8A CN202010201428A CN111233501A CN 111233501 A CN111233501 A CN 111233501A CN 202010201428 A CN202010201428 A CN 202010201428A CN 111233501 A CN111233501 A CN 111233501A
- Authority
- CN
- China
- Prior art keywords
- conveying
- brick core
- refining furnace
- granularity
- tuyere 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.)
- Granted
Links
- 239000011449 brick Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000007670 refining Methods 0.000 title claims abstract description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 26
- 239000010949 copper Substances 0.000 title claims abstract description 26
- 238000003723 Smelting Methods 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 20
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000000996 additive effect Effects 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 16
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052810 boron oxide Inorganic materials 0.000 claims abstract description 12
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 12
- 239000010431 corundum Substances 0.000 claims abstract description 12
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims abstract description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 11
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims abstract description 11
- 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 11
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 11
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims abstract description 11
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims abstract description 11
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004568 cement Substances 0.000 claims abstract description 10
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims abstract description 10
- 229910052808 lithium carbonate Inorganic materials 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 5
- 239000011265 semifinished product Substances 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 2
- 238000010304 firing Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 239000002893 slag Substances 0.000 abstract description 9
- 230000003628 erosive effect Effects 0.000 abstract description 8
- 230000035939 shock Effects 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 30
- 238000007789 sealing Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 4
- 238000009851 ferrous metallurgy Methods 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Images
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
-
- 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
- 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
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3225—Yttrium 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
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, 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
- C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
-
- 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 or 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
- C04B2235/54—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
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
-
- 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)
- Manufacture And Refinement Of Metals (AREA)
Abstract
本申请公开了一种用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯及其制备方法，由80~90wt%的铬刚玉，2~8wt%氧化锆，5~10wt%复合添加剂及6.5~7.2wt%水混合，将搅拌10~20min得到的泥料在浇注模具内振动成型。复合添加剂由60~75wt%纯铝酸钙水泥，5~10wt%碳酸锂，1~3wt%氧化钇，5~12wt%三聚磷酸铵，5~12wt%六偏磷酸钠及2~5wt%氧化硼搅拌均匀制成。所制备风口砖砖芯强度大，抗侵蚀性强、抗热震稳定性好以及气体利用率高，节能的同时便于扒渣作业。
Description
技术领域
本发明属于有色金属冶炼领域，具体涉及一种用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯及其制备方法。
背景技术
炼铜阳极精炼炉主要对吹炼粗铜进行氧化除杂、还原除氧进而得到纯度99.3%以上的精炼铜。阳极精炼过程包括进料、氧化扒渣、还原、浇铸四个作业阶段，氧化扒渣和还原过程均是通过风口砖砖芯向铜液中分阶段吹入压缩空气、氮气、天热气等不同介质来完成杂质元素的脱除。生产中风口砖砖芯主导全局作用，支配着介质射流与熔体的接触面积、熔池的搅拌强度、杂质元素的氧化还原反应速率、熔池的升温速度以及扒渣效果。同时也是炼铜阳极精炼炉薄弱环节，需承受高温、冲刷以及温度波动，易造成结构剥落、断裂或烧损。
目前行业内设计安装的氧化还原风口砖砖芯普遍采用奥美RHI喷射型、MetJet型口及混合喷射型等，大多使用烧成刚玉—尖晶石、铬刚玉材质，生产中易发生砖体剥落使用寿命短、天然气回火、熔池搅拌强度过大及扒渣困难等问题，同时存在气体介质利用率低及反应速率低等现象，一定程度上影响粗铜阳极精炼炉生产的安全、连续、高效运行。
因此，提供一种气体利用率高、抗侵蚀和抗热震稳定性强的氧化还原风口砖砖芯，已经是一个值得研究的问题。
发明内容
本发明的目的在于提供一种用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯及其制备方法。
基于上述目的，本发明采取如下技术方案：
一种用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯，由80~90wt%的铬刚玉，2~8wt%氧化锆，5~10wt%复合添加剂及6.5~7.2wt%水混合均匀，将均匀搅拌的泥料浇注模具内振动成型后，经养护、干燥、煅烧即得。
优选地，由85wt%的铬刚玉，3wt%氧化锆，5wt%复合添加剂及7%水搅拌混匀而成泥料制得。
进一步地，所述复合添加剂由60~75wt%纯铝酸钙水泥，5~10wt%碳酸锂，1~3wt%氧化钇，5~12wt%三聚磷酸铵，5~12wt%六偏磷酸钠及2~5wt%氧化硼搅拌均匀制成。
优选地，所述复合添加剂由70wt%纯铝酸钙水泥， 8wt%碳酸锂，2wt%氧化钇，10wt%三聚磷酸铵，7wt%六偏磷酸钠及3wt%氧化硼搅拌均匀制成。
进一步地，所述铬刚玉纯度≥99.8%，粒度为1~8mm；所述氧化锆纯度≥90%，氧化锆粒度400~600目。
进一步地，所述添加剂中：纯铝酸钙水泥粒度为1000~1200目；碳酸锂纯度≥98.5%，粒度400~600目；氧化钇纯度≥98.5%，粒度600~800目；三聚磷酸铵粒度为粒度150~220目；六偏磷酸钠粒度为150~220目；氧化硼纯度≥98.5%，粒度200~400目。
上述述用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯的制备方法，步骤如下：
（1）模具底板和上线板根据设计预留孔，将若干直径相同的聚乙烯条串在固定位置上下线板孔中，聚乙烯条直径大小为3mm~10mm；
（2）将各原料混合，搅拌均匀得泥料，将泥料浇注到模具内并振动成型；
（3）成型后脱模的坯子在室温养护1~3天，以2~5℃/h的升温速率升温至130~150℃条件下干燥1~3天，随炉冷却至自然温度后的半成品以130~150℃的升温速率在1650℃~1720℃条件下保温15~25h高温烧制，随炉冷却至室温即得。
本发明制备的炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯依照黑色冶金行业标准(YB/T 4118-2003)测定：常温耐压强度80~90MPa，常温抗折强度15~20MPa，静态坩埚法抗渣实验侵蚀指数为2-4%，荷重软化温度1600℃以上。
本发明的有益效果是：通过加入定量的氧化锆和稳定剂氧化钇改善材料的高温强度和抗侵蚀性能，增强了风口砖砖芯的抗热震稳定性，可有效解决风口砖砖芯在作业过程中出现的使用寿命短的问题；在满足生产的情况下，通过扩大气体流通截面积适当减弱搅拌强度，提高了气体介质与熔体的接触面积，有效防止了熔体对炉衬耐火材料的机械冲刷；风口砖砖芯的多通道气孔设计增加了入炉气体介质的弥散性，提高了气体利用率和反应速率，同时减少了铜液与渣层的波动程度，便于扒渣。
附图说明
图1为本发明制备的炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯的结构示意图。
图中左图是本发明风口砖砖芯的结构示意图，右图为风口砖砖芯A-A剖视图。图中：1.砖芯筒体密封层；2.砖芯顶端密封层；3.入口气体通道； 4.风口砖砖芯；5.风口砖砖芯内部气体通道,6.凹陷。
具体实施方式
以下结合具体实施例对本发明的技术方案作进一步详细说明，但本发明的保护范围并不局限于此。
下述实施例中风口砖砖芯使用的铬刚玉纯度≥99.8%，粒度为1~8mm；氧化锆为焦作李封工业有限责任公司生产的5Y钇稳定氧化锆粉，纯度≥90.6%，氧化锆粒度400~600目；氧化钇纯度≥98.5%，粒度600~800目；三聚磷酸铵粒度为粒度150~220目；六偏磷酸钠粒度为150~220目；氧化硼纯度≥98.5%，粒度200~400目。
实施例1
一种用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯的制备方法，过程如下：
（1）按照下述比例称取各原料：铬刚玉85wt%，氧化锆3wt%，复合添加剂细粉5wt%及生产水7wt%；
所述复合添加剂由70wt%纯铝酸钙水泥，8wt%碳酸锂，2wt%氧化钇（氧化钇作为稳定剂），10wt%三聚磷酸铵，7wt%六偏磷酸钠及3wt%氧化硼（氧化硼作为烧结剂）组成，将复合添加剂中的各组分搅拌均匀，备用；
（2）将各原料混合搅拌15min得到泥料，将泥料浇注模具内振动成型，所述模具底板和上线板根据设计预留孔，将直径5mm聚乙烯条串固定在上、下线板孔中；
（3）成型后脱模的坯子在室温养护2天，以5℃/h的升温速率升温至130℃条件下干燥2天，随炉冷却至自然温度后的半成品以20℃/h的升温速率在1650℃条件下保温15h，随炉冷却至室温后，将烧成品分别依照图1砖芯要求组装焊接而成。
如图1所示，风口砖砖芯4呈圆台形，风口砖砖芯4内设有从大头端贯穿至小头端的风口砖砖芯内部气体通道5，风口砖砖芯内部气体通道5直径为3mm~10mm,风口砖砖芯4大头端中部设有深L=10mm的凹陷6从而在风口砖砖芯4大头端的圆周形成对砖芯顶端密封层2的支撑，侧壁外侧设有砖芯筒体密封层1，砖芯筒体密封层1材质为1~3mm厚不锈钢，大头端外侧设有砖芯顶端密封层2，砖芯顶端密封层2材质为8~10mm厚不锈钢，砖芯顶端密封层2中部设有入口气体通道3，气体通道材质为直径48mm，厚3.5mm的不锈钢管，入口气体通道3和凹陷6相通，还原气体从入口气体通道3进入，通过凹陷6以及风口砖砖芯内部气体通道5进入精炼炉内。
风口砖砖芯内部空气通道5横截面积之和与入口气体通道3横截面积占比在0.9—1.2之间。过大影响砖芯强度，过小影响气体流量和使用效果。入口气体通道3大小依据气体压力和流量要求设计。
本发明制备的炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯依照黑色冶金行业标准(YB/T 4118-2003)测定：常温耐压强度90MPa，常温抗折强度20MPa，静态坩埚法抗渣实验侵蚀指数为2%，荷重软化温度1650℃。
实施例2
一种用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯的制备方法，过程如下：
（1）按照下述比例称取各原料：铬刚玉88wt%，圣戈班陶瓷材料公司生产的单斜活性氧化锆3wt%，复合添加剂2wt%及生产水7wt%；
所述复合添加剂由70wt%纯铝酸钙水泥，7wt%碳酸锂，3wt%氧化钇，10wt%三聚磷酸铵，8wt%六偏磷酸钠及2wt%氧化硼组成，将复合添加剂各组分搅拌均匀，备用；
（2）将各原料混合搅拌15min得到泥料，将泥料浇注模具内振动成型，所述模具底板和上线板根据设计预留孔，将直径10mm聚乙烯条串固定在上、下线板孔中。
（3）成型后脱模的坯子在室温养护2天，以5℃/h的升温速率升温至140℃条件下干燥2天，随炉冷却至自然温度后的半成品以20℃/h的升温速率在1700℃条件下保温25h，随炉冷却至室温后，将烧成品依照图1砖芯要求组装焊接而成。
本发明制备的炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯依照黑色冶金行业标准(YB/T 4118-2003)测定：常温耐压强度85MPa，常温抗折强度15MPa，静态坩埚法抗渣实验侵蚀指数为4%，荷重软化温度1630℃。
对比实施例3
一种用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯的制备方法，过程如下：
（1）按照下述比例称取各原料：铬刚玉91wt%，复合添加剂3wt%及生产水7wt%。
所述复合添加剂由70wt%纯铝酸钙水泥， 7wt%碳酸锂，11wt%三聚磷酸铵， 9wt%六偏磷酸钠细粉及3wt%氧化硼组成，将各原料搅拌均匀，备用；
（2）将各原料混合搅拌15min得到泥料，将泥料浇注模具内振动成型，所述模具底板和上线板根据设计预留孔，将直径10mm聚乙烯条串固定在上、下线板孔中。
（3）成型后脱模的坯子在室温养护2天，以5℃/h的升温速率升温至140℃条件下干燥2天，随炉冷却至自然温度后的半成品以20℃/h的升温速率在1700℃条件下保温25h，随炉冷却至室温后，将烧成品依照图1组装焊接而成。
本发明制备的炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯依照黑色冶金行业标准(YB/T 4118-2003)测定：常温耐压强度75MPa，常温抗折强度15MPa，静态坩埚法抗渣实验侵蚀指数为8%，荷重软化温度1600℃。
通过以上对比可以发现，通过加入定量的氧化锆和稳定剂氧化钇能有效改善材料的高温强度和抗侵蚀性能，增强了风口砖砖芯的抗热震稳定性，可有效解决风口砖砖芯在作业过程中使用寿命短的问题，有效防止了熔体对炉衬耐火材料的机械冲刷。
在此说明书中，本发明已参照其特定的实施例作了描述。但是，很明显仍可以做出各种修改和变更而不背离本发明的精神和范围。因此，说明书应被认为是说明性的而非限制性的。
Claims (7)
1.一种用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯，其特征在于，由80~90wt%的铬刚玉，2~8wt%氧化锆，5~10wt%复合添加剂及6.5~7.2wt%水混合，将均匀搅拌的泥料浇注模具内振动成型后，经养护、干燥、煅烧即得。
2.根据权利要求1所述用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯，其特征在于，由85wt%的铬刚玉，3wt%氧化锆，5wt%复合添加剂及7%水搅拌混匀而成泥料制得。
3.根据权利要求1或2所述用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯，其特征在于，所述复合添加剂由60~75wt%纯铝酸钙水泥，5~10wt%碳酸锂，1~3wt%氧化钇，5~12wt%三聚磷酸铵，5~12wt%六偏磷酸钠及2~5wt%氧化硼搅拌均匀制成。
4.根据权利要求3所述用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯，其特征在于，所述复合添加剂由70wt%纯铝酸钙水泥， 8wt%碳酸锂，2wt%氧化钇，10wt%三聚磷酸铵，7wt%六偏磷酸钠及3wt%氧化硼搅拌均匀制成。
5.根据权利要求1或2所述用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯，其特征在于，所述铬刚玉纯度≥99.8%，粒度为1~8mm；所述氧化锆纯度≥90%，氧化锆粒度400~600目。
6.根据权利要求3或4所述用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯，其特征在于，所述添加剂中：纯铝酸钙水泥粒度为1000~1200目；碳酸锂纯度≥98.5%，粒度400~600目；氧化钇纯度≥98.5%，粒度600~800目；三聚磷酸铵粒度为粒度150~220目；六偏磷酸钠粒度为150~220目；氧化硼纯度≥98.5%，粒度200~400目。
7.根据权利要求1、2或4所述用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯的制备方法，其特征在于，步骤如下：
（1）模具底板和上线板根据设计预留孔，将若干直径相同的聚乙烯条串在固定位置上下线板孔中，聚乙烯条直径大小为3mm~10mm；
（2）将各原料混合，搅拌均匀得泥料，将泥料浇注到模具内并振动成型；
（3）成型后脱模的坯子在室温养护1~3天，以2~5℃/h的升温速率升温至130~150℃条件下干燥1~3天，随炉冷却至自然温度后的半成品以130~150℃的升温速率在1650℃~1720℃条件下保温15~20h高温烧制，随炉冷却至室温即得。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010201428.8A CN111233501B (zh) | 2020-03-20 | 2020-03-20 | 一种用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯及其制备方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010201428.8A CN111233501B (zh) | 2020-03-20 | 2020-03-20 | 一种用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯及其制备方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111233501A true CN111233501A (zh) | 2020-06-05 |
| CN111233501B CN111233501B (zh) | 2022-09-30 |
Family
ID=70870479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010201428.8A Active CN111233501B (zh) | 2020-03-20 | 2020-03-20 | 一种用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯及其制备方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111233501B (zh) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503445A (zh) * | 2011-09-20 | 2012-06-20 | 中钢集团洛阳耐火材料研究院有限公司 | 直通式气道透气砖的制备方法 |
| CN203429199U (zh) * | 2013-08-05 | 2014-02-12 | 洛阳利尔耐火材料有限公司 | 一种钢包精炼底吹透气砖复合砖芯 |
| CN104446544A (zh) * | 2014-11-26 | 2015-03-25 | 郑州真金耐火材料有限责任公司 | 底吹炉风口区耐火砖的生产方法 |
| CN105645977A (zh) * | 2016-01-08 | 2016-06-08 | 洛阳利尔耐火材料有限公司 | 一种特殊钢精炼用透气砖及其制备方法 |
| CN206037715U (zh) * | 2016-07-16 | 2017-03-22 | 洛阳科创新材料股份有限公司 | 一种新型防渗透气砖 |
-
2020
- 2020-03-20 CN CN202010201428.8A patent/CN111233501B/zh active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503445A (zh) * | 2011-09-20 | 2012-06-20 | 中钢集团洛阳耐火材料研究院有限公司 | 直通式气道透气砖的制备方法 |
| CN203429199U (zh) * | 2013-08-05 | 2014-02-12 | 洛阳利尔耐火材料有限公司 | 一种钢包精炼底吹透气砖复合砖芯 |
| CN104446544A (zh) * | 2014-11-26 | 2015-03-25 | 郑州真金耐火材料有限责任公司 | 底吹炉风口区耐火砖的生产方法 |
| CN105645977A (zh) * | 2016-01-08 | 2016-06-08 | 洛阳利尔耐火材料有限公司 | 一种特殊钢精炼用透气砖及其制备方法 |
| CN206037715U (zh) * | 2016-07-16 | 2017-03-22 | 洛阳科创新材料股份有限公司 | 一种新型防渗透气砖 |
Non-Patent Citations (3)
| Title |
|---|
| 本书编辑委员会 编: "《新编钢水精炼暨铁水预处理1500问》", 31 March 2007, 中国科学技术出版社 * |
| 许晓海等 编著: "《耐火材料技术手册》", 31 January 2000, 冶金工业出版社 * |
| 韦文诚著: "《固态燃料电池技术》", 31 October 2014, 上海交通大学出版社 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111233501B (zh) | 2022-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109750210B (zh) | 低氧、氢含量高锰钢的生产方法 | |
| CN110845245B (zh) | 一种致密的高纯氧化锆耐火制品 | |
| CN103011865B (zh) | 一种透气砖及其制备方法 | |
| CN109487178B (zh) | 高纯净超高锰钢及其制备工艺 | |
| CN109487037B (zh) | 高纯净锰13高锰钢 | |
| CN109678479B (zh) | 冶炼高纯净高锰钢的钢包底吹氩透气砖 | |
| CN109579525B (zh) | 制备高纯净高锰钢的系统 | |
| CN107746258B (zh) | 一种超低线变化免烧透气砖及其制备方法和应用 | |
| CN107382357A (zh) | 一种钢包底吹复合透气砖用弥散材料及其制备方法 | |
| CN105645977A (zh) | 一种特殊钢精炼用透气砖及其制备方法 | |
| CN111574208B (zh) | 一种高抗热震性刚玉-锆莫来石质透气砖的制备方法 | |
| CN109487036B (zh) | 高纯净锰18高锰钢及其制备方法 | |
| CN115043660A (zh) | 一种熔铸高铬耐火砖 | |
| JP2000103665A (ja) | 不焼成炭素含有耐火物および溶融金属用容器 | |
| CN112125665A (zh) | 电炉钢包、钢包、转炉炼钢内水口氧化锆陶瓷的制备工艺 | |
| CN108115123B (zh) | 鱼雷罐直筒渣线区工作层的维护方法 | |
| CN111233501B (zh) | 一种用于炼铜阳极精炼炉作业过程中输送氧化还原气体的风口砖砖芯及其制备方法 | |
| CN109504821B (zh) | 降低高锰钢氧、氢含量的方法 | |
| CN109776101B (zh) | 一种CA6-MA-Cr2O3-Al2O3钢包内衬浇注料及其制备方法 | |
| CN111995405A (zh) | 一种钢包用耐高温保温永久衬 | |
| CN115611643A (zh) | 一种干熄焦炉斜道支柱用新型预制块及其制备方法 | |
| CN115259842A (zh) | 一种节能高效的钢包透气砖及其制备工艺 | |
| CN109437932A (zh) | 一种镁质弥散型透气耐火材料及其制备方法 | |
| CN114262232A (zh) | 一种精炼钢包工作衬用加入有石墨原料的无碳浇注料制备方法 | |
| CN114478031A (zh) | 一种电炉钢包用不烧铝镁碳砖的生产工艺 |
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 |