CN113603488A - 一种新型环保阳极炭块的生产方法 - Google Patents
一种新型环保阳极炭块的生产方法 Download PDFInfo
- Publication number
- CN113603488A CN113603488A CN202110889111.2A CN202110889111A CN113603488A CN 113603488 A CN113603488 A CN 113603488A CN 202110889111 A CN202110889111 A CN 202110889111A CN 113603488 A CN113603488 A CN 113603488A
- Authority
- CN
- China
- Prior art keywords
- carbon block
- anode carbon
- coke
- temperature
- anode
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 92
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 60
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000004898 kneading Methods 0.000 claims abstract description 20
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 16
- 239000005011 phenolic resin Substances 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 238000000748 compression moulding Methods 0.000 claims abstract description 7
- 238000005485 electric heating Methods 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 238000012216 screening Methods 0.000 claims abstract description 7
- 239000000571 coke Substances 0.000 claims description 41
- 239000002245 particle Substances 0.000 claims description 27
- 239000002699 waste material Substances 0.000 claims description 16
- 239000010426 asphalt Substances 0.000 claims description 14
- 239000011329 calcined coke Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 9
- 238000011068 loading method Methods 0.000 claims description 4
- 239000002028 Biomass Substances 0.000 claims description 2
- 238000001354 calcination Methods 0.000 claims description 2
- 239000011280 coal tar Substances 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 claims description 2
- 239000002006 petroleum coke Substances 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 229920005989 resin Polymers 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 239000002994 raw material Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- JOLVYUIAMRUBRK-UHFFFAOYSA-N 11',12',14',15'-Tetradehydro(Z,Z-)-3-(8-Pentadecenyl)phenol Natural products OC1=CC=CC(CCCCCCCC=CCC=CCC=C)=C1 JOLVYUIAMRUBRK-UHFFFAOYSA-N 0.000 description 4
- YLKVIMNNMLKUGJ-UHFFFAOYSA-N 3-Delta8-pentadecenylphenol Natural products CCCCCCC=CCCCCCCCC1=CC=CC(O)=C1 YLKVIMNNMLKUGJ-UHFFFAOYSA-N 0.000 description 4
- FAYVLNWNMNHXGA-UHFFFAOYSA-N Cardanoldiene Natural products CCCC=CCC=CCCCCCCCC1=CC=CC(O)=C1 FAYVLNWNMNHXGA-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- PTFIPECGHSYQNR-UHFFFAOYSA-N cardanol Natural products CCCCCCCCCCCCCCCC1=CC=CC(O)=C1 PTFIPECGHSYQNR-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 229920005610 lignin Polymers 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- -1 cardanol modified phenolic resin Chemical class 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000012716 precipitator Substances 0.000 description 3
- 239000011269 tar Substances 0.000 description 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- JOLVYUIAMRUBRK-UTOQUPLUSA-N Cardanol Chemical compound OC1=CC=CC(CCCCCCC\C=C/C\C=C/CC=C)=C1 JOLVYUIAMRUBRK-UTOQUPLUSA-N 0.000 description 1
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- OPOKJTVMNOKKQO-UHFFFAOYSA-H tripotassium;chromium(3+);oxalate;trihydrate Chemical compound O.O.O.[K+].[K+].[K+].[Cr+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O OPOKJTVMNOKKQO-UHFFFAOYSA-H 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
- C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
- C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
-
- 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
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
- C25C3/125—Anodes based on 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6562—Heating rate
-
- 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Electrolytic Production Of Metals (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
本发明公开了一种新型环保阳极炭块的生产方法,将干料88‑92份和酚醛树脂8‑12份分别进行破碎筛选;然后将干料混捏20‑25min后,再加入酚醛树脂进行混合混捏20‑25min,得到糊料,将糊料均匀的装入振动成型机内的模具内用,使用液压机压制成型,脱模冷却后形成初级生阳极炭块;将出模后的初级生阳极炭块送入隧道式电加热窑内,在150‑200℃温度中,加热2‑3小时后,得到生阳极炭块;随后将生阳极炭块放入焙烧炉内进行焙烧,焙烧炉内火道温度按照3‑4℃/H升温速率由常温升至200℃;然后按照8‑10℃/H升温速率由200升至1100℃;在1100℃保温48小时,使阳极温度均匀达到950‑1000℃,得到熟阳极炭块。本发明环保效果好,使用成本低。
Description
技术领域
本发明涉及炭素行业技术领域,尤其是涉及一种新型环保阳极炭块的生产方法。
背景技术
在电解铝行业使用的阳极炭块,用于电解氧化铝,是电解氧化铝行业重要的原材料;传统的阳极炭块生产是利用干料与粘接剂沥青进行结合,沥青作为粘接剂,会产大量沥青烟,需配套电捕焦油器等环保设施,现场作业环境差;且干料在混捏前还需要预热,需配套高温导热油系统,存较大安全隐患;混捏后糊料温度为160±5℃,需配套冷却系统,产生含水气沥青烟,环保差;生块出块温度145±5℃,需配套冷却水池,进行3小时左右的冷却,产生含油性废水;焙烧中产生沥青烟气,需配套电需配套电捕焦油器等环保设施,现场作业环境差,环保成本高;焙烧曲线根据沥青的结焦特性进行焙烧曲线的制定,焙烧炉火道温度在1150℃以上,烧坯温度在1050-1080℃,焙烧周期较长常用的有180h和216h焙烧曲线,系统产量低;焙烧熟块存在不同程度粘结填充料的现象,需配套炭块清理机系统,另因粘料问题,填充料只能选择不影响炭块质量的价格较高的煅后焦、冶金焦,使用成本较高;存在一定的掉渣率,影响电解槽的运行稳定性,增员工劳动强度。
发明内容
本发明所要解决的技术问题是:克服现有技术的不足,提供一种环保效果好,使用成本低的新型环保阳极炭块的生产方法。
本发明为解决技术问题所采取的技术方案是:
一种新型环保阳极炭块的生产方法,包括以下步骤:
S1:按照重量份数计,将干料88-92份和酚醛树脂8-12份分别进行破碎、筛选;
S2:筛选后,先将干料混捏20-25min后,再加入酚醛树脂进行混合混捏20-25min,得到糊料,糊料的混捏温度为25-55℃;
S3:将糊料均匀的装入振动成型机内的模具内用,使用液压机在630吨的压力下压制成型,然后脱模冷却后形成初级生阳极炭块,所述初级生阳极炭块的出料温度为25-55℃,不需冷却;将出模后的所述初级生阳极炭块送入隧道式电加热窑内,在150-200℃温度中,加热2-3小时后,得到生阳极炭块;
S4:随后将生阳极炭块放入焙烧炉内进行焙烧,焙烧炉内火道温度按照3-4℃/H升温速率由常温升至200℃;然后按照8-10℃/H升温速率由200升至1100℃;在1100℃保温48小时,使阳极温度均匀达到950-1000℃,得到熟阳极炭块;
S5:对熟阳极炭块进行降温,降温到200-300℃后出炉,得到阳极炭块。
所述干料由煅后焦、残极和废阴极炭块或生碎组成,其中所述煅后焦包括粒度为6-12mm的粗焦、粒度为3-6mm的中焦、粒度为0-3mm的细焦和粒度小于等于0.8mm的粉焦,其中粗焦占整体干料的7-11%,中焦占整体干料的19-23%,细焦占整体干料的22-27%,粉焦占整体干料的28-29%。
所述残极包括粒度为3-12mm的粗残和粒度为0-3mm的细残,其中粗残占整体干料的0-10%,细残占整体干料的0-10%;所述废阴极炭块的粒度为0-3mm,占整体干料的0-5%;所述生碎的粒度为0-3mm,占整体干料的0-3%。
所述废阴极炭块指的是电解槽大修时废弃的阴极炭块,经清除其表面的残留电解质和附着物后进行破碎处理,破碎成粒度为0-3mm的颗粒。
所述煅后焦指的是石油焦在隔绝空气的情况下经回转窑或罐式煅烧炉经1250-1350℃的高温煅烧得到的产品;残极是指电解槽阳极残极。
所述酚醛树脂包括生物质改性酚醛树脂、沥青改性酚醛树脂、煤焦油改性酚醛树脂、烷基酚改性酚醛树脂及橡胶改性酚醛树脂中的一种或者几种;所述的改性酚醛树脂为液体树脂,树脂的粘度为8000-16000mpa.s;所述酚醛树脂在900-1000℃下炭化形成炭化物,所述炭化物的粉末的电阻率为30-120mΩ•cm。
采用酚醛树脂作为粘结剂,能够提供充分的粘结性能,提高阳极强度;并且该酚醛树脂在低温条件下炭化后,具有良好的导电性能,可进一步提高炭素阳极的导电性能;即在较少的添加量的条件下,可提供足够的粘结性能,使强度满足要求,进而减少阳极在焙烧过程中质量的损失。
本发明的积极有益效果是:
1、本发明中使用酚醛树脂作为粘合剂,干料和粘合剂均无需预热,焙烧中无沥青烟产生,无污染,无需配套电捕焦油器等环保设施,现场作业环境好,也无需配套高温导热系统,安全性好;混捏后糊料温度25-65℃,无需冷却,成型后生块温度25-65℃,也无需冷却,成本低,减少员工劳动强度。
2、本发明中焙烧火道温度在1100℃,烧坯温度在950-1000℃,温度较低,有利于提高焙烧炉使用寿命。以3-4℃/h的升温速率由室温升温至200℃,以8-10℃/h升温200-1100℃,并于1100℃保温48h;焙烧完毕后缓慢降温至200-300℃出炉,焙烧时间小于180h,有利于产量的提高。
3、本发明中焙烧熟块不存在粘结填充料的现象,无需配套炭块清理机系统,另因无粘料问题,填充料可以选择价格便宜耐用的石英石等,使用成本较低,几乎无掉渣,电解槽运行稳定性好,降低员工劳动强度。
附图说明
图1是本发明中阳极炭块生产生的配方图;
图2是本发明一种新型环保阳极炭块的生产方法中实施例1的配料图;
图3是本发明一种新型环保阳极炭块的生产方法中实施例2的配料图;
图4是本发明一种新型环保阳极炭块的生产方法中实施例3的配料图。
具体实施方式
一种新型环保阳极炭块的生产方法,按照重量份数计,将干料88-92份和酚醛树脂8-12份分别进行破碎、筛选;筛选后,先将干料混捏20-25min后,再加入酚醛树脂进行混合混捏20-25min,得到糊料,糊料的混捏温度为25-55℃;
将糊料均匀的装入振动成型机内的模具内用,使用液压机在630吨的压力下压制成型,然后脱模冷却后形成初级生阳极炭块,所述初级生阳极炭块的出料温度为25-55℃,不需冷却;将出模后的所述初级生阳极炭块送入隧道式电加热窑内,在150-200℃温度中,加热2-3小时后,得到生阳极炭块;随后将生阳极炭块放入焙烧炉内进行焙烧,焙烧炉内火道温度按照3-4℃/H升温速率由常温升至200℃;然后按照8-10℃/H升温速率由200升至1100℃;在1100℃保温48小时,使阳极温度均匀达到950-1000℃,得到熟阳极炭块;对熟阳极炭块进行降温,降温到200-300℃后出炉,得到阳极炭块,得到的阳极炭块经组装车间组装后供电解槽使用,组装时,用磷生铁将钢爪和阳极炭块组装起来。
下面结合附图1、图2、图3、图4和具体实施例对本发明作进一步的解释和说明:
实施例1、物料总量为100000kg,按照干料占88%、木质素改性酚醛树脂占12%配方,干料包括煅后焦占、残极占和废阴极碳块;煅后焦中粒度为6-12mm的粗焦占总干料重量的7%,粒度为3-6mm 的中焦占总干料重量的19%,粒度为0-3mm 的细焦占总干料重量的22%,粒度小于等于0.8mm 的粉焦占总干料重量的28%;残极中粒度为3-6mm的粗残占总干料重量的10%,粒度为0-3mm的细残占总干料重量的10%;粒度为0-3mm的废阴极碳块占总干料重量的4%,即称取粒度为6-12mm的粗焦6160kg,粒度为3-6mm 的中焦16720kg,粒度为0-3mm 的细焦19360kg,粒度小于等于0.8mm 的粉焦24640kg,粒度为3-6mm的粗残8800kg,粒度为0-3mm的细残8800kg;粒度为0-3mm的废阴极碳块3520kg,共七种原料,先将这七种原料在混捏机中常温混捏20min,然后再加入12000kg的木质素改性酚醛树脂进行混合混捏23min,得到糊料,糊料的混捏温度为40℃;将糊料均匀的装入振动成型机内的模具内用,使用液压机在630吨的压力下压制成型,然后脱模冷却后形成初级生阳极炭块,初级生阳极炭块的出料温度为55℃,不需冷却;将出模后的初级生阳极炭块送入隧道式电加热窑内,在180℃温度中,加热2.5小时后,得到生阳极炭块,随后将生阳极炭块放入焙烧炉内进行焙烧,焙烧炉内火道温度按照4℃/H升温速率由常温升至200℃;然后按照10℃/H升温速率由200升至1100℃;在1100℃保温48小时,使阳极温度均匀达到1000℃,得到熟阳极炭块,对熟阳极炭块进行降温,降温到250℃后出炉,得到阳极炭块。
木质素改性酚醛树脂,其制备方法:将300份苯酚,37%的甲醛429份,6份催化剂投入反应瓶中,升温至73-75℃,恒温2h后,加入木质素,减压脱水至粘度为11000cp/25℃,加入2份氯化铁和6氯化镍,即得到所需树脂,该树脂炭化物粉末的电阻率为30mΩ·cm。
实施例2、物料总量为100000kg,按照干料占90%、沥青改性酚醛树脂占10%配方,干料包括煅后焦占、残极占和生碎;煅后焦中粒度为6-12mm的粗焦占总干料重量的8%,粒度为3-6mm 的中焦占总干料重量的20%,粒度为0-3mm 的细焦占总干料重量的23%,粒度小于等于0.8mm 的粉焦占总干料重量的28%;残极中粒度为3-6mm的粗残占总干料重量的8%,粒度为0-3mm的细残占总干料重量的10%;粒度为0-3mm的生碎占总干料重量的3%,即称取粒度为6-12mm的粗焦7040kg,粒度为3-6mm 的中焦17600kg,粒度为0-3mm 的细焦20240kg,粒度小于等于0.8mm 的粉焦24640kg,粒度为3-6mm的粗残7040kg,粒度为0-3mm的细残8800kg;粒度为0-3mm的生碎2640kg,共七种原料,先将这七种原料在混捏机中常温混捏20min,然后再加入10000kg的沥青改性酚醛树脂进行混合混捏23min,得到糊料,糊料的混捏温度为50℃,酚醛树脂常温操作即可,将糊料均匀的装入振动成型机内的模具内用,使用液压机在630吨的压力下压制成型,然后脱模冷却后形成初级生阳极炭块,初级生阳极炭块的出料温度为50℃,不需冷却;将出模后的初级生阳极炭块送入隧道式电加热窑内,在200℃温度中,加热3小时后,得到生阳极炭块;随后将生阳极炭块放入焙烧炉内进行焙烧,焙烧炉内火道温度按照3.5℃/H升温速率由常温升至200℃;然后按照9℃/H升温速率由200升至1100℃;在1100℃保温48小时,使阳极温度均匀达到1000℃,得到熟阳极炭块;对熟阳极炭块进行降温,降温到300℃后出炉,得到阳极炭块。
沥青改性酚醛树脂制备:将200份苯酚,37%的甲醛329份,4份催化剂投入反应瓶中,升温至73-75℃,取10份沥青粉和10份浓度为50%的氢氧化钠溶液混合均匀,投入反应瓶中;恒温2h后,减压脱水至粘度为12000cp/25℃,加入2份氯化铁和4份硼酸,即得到所需树脂,该树脂炭化物粉末的电阻率为80mΩ·cm。
实施例3、物料总量为100000kg,按照干料占92%、腰果酚改性酚醛树脂占8%配方,干料包括煅后焦、残极和废阴极碳块;煅后焦中粒度为6-12mm的粗焦占总干料重量的11%,粒度为3-6mm 的中焦占总干料重量的20%,粒度为0-3mm 的细焦占总干料重量的22%,粒度小于等于0.8mm 的粉焦占总干料重量的28%;残极中粒度为3-6mm的粗残占总干料重量的7%,粒度为0-3mm的细残占总干料重量的7%;粒度为0-3mm的废阴极碳块占总干料重量的5%,即称取粒度为6-12mm的粗焦9680kg,粒度为3-6mm 的中焦17600kg,粒度为0-3mm 的细焦19360kg,粒度小于等于0.8mm 的粉焦24640kg,粒度为3-6mm的粗残6160kg,粒度为0-3mm的细残6160kg;粒度为0-3mm的废阴极碳块4400kg,共七种原料,先将这七种原料在混捏机中常温混捏25min,然后再加入8000kg的腰果酚改性酚醛树脂混合混捏25min,得到糊料,糊料的混捏温度为55℃,酚醛树脂常温操作即可,将糊料均匀的装入振动成型机内的模具内用,使用液压机在630吨的压力下压制成型,然后脱模冷却后形成初级生阳极炭块,初级生阳极炭块的出料温度为55℃,不需冷却;将出模后的初级生阳极炭块送入隧道式电加热窑内,在180℃温度中,加热3小时后,得到生阳极炭块;随后将生阳极炭块放入焙烧炉内进行焙烧,焙烧炉内火道温度按照4℃/H升温速率由常温升至200℃;然后按照10℃/H升温速率由200升至1100℃;在1100℃保温48小时,使阳极温度均匀达到1000℃,得到熟阳极炭块;对熟阳极炭块进行降温,降温到250℃后出炉,得到阳极炭块。
腰果酚改性酚醛树脂的制备方法:将150份苯酚,80份腰果酚,37%的甲醛300份,1.5份催化剂投入反应瓶中,升温至83-85℃;恒温2h后,加入6份三水草酸铬钾和4份硼酸,减压脱水至粘度为14500cp/25℃,即得到所需树脂,该树脂炭化物粉末的电阻率为120mΩ·cm。
当然,本发明创造并不局限于上述实施方式,熟悉本领域的技术人员在不违背本发明精神的前提下还可作出等同变形或替换,这些等同的变型或替换均包含在本申请权利要求所限定的范围内。
Claims (6)
1.一种新型环保阳极炭块的生产方法,包括以下步骤:
S1:按照重量份数计,将干料88-92份和酚醛树脂8-12份分别进行破碎、筛选;
S2:筛选后,先将干料混捏20-25min后,再加入酚醛树脂进行混合混捏20-25min,得到糊料,糊料的混捏温度为25-55℃;
S3:将糊料均匀的装入振动成型机内的模具内用,使用液压机在630吨的压力下压制成型,然后脱模冷却后形成初级生阳极炭块,所述初级生阳极炭块的出料温度为25-55℃,不需冷却;将出模后的所述初级生阳极炭块送入隧道式电加热窑内,在150-200℃温度中,加热2-3小时后,得到生阳极炭块;
S4:随后将生阳极炭块放入焙烧炉内进行焙烧,焙烧炉内火道温度按照3-4℃/H升温速率由常温升至200℃;然后按照8-10℃/H升温速率由200升至1100℃;在1100℃保温48小时,使阳极温度均匀达到950-1000℃,得到熟阳极炭块;
S5:对熟阳极炭块进行降温,降温到200-300℃后出炉,得到阳极炭块。
2.根据权利要求1所述的一种新型环保阳极炭块的生产方法,其特征是:所述干料由煅后焦、残极和废阴极炭块或生碎组成,其中所述煅后焦包括粒度为6-12mm的粗焦、粒度为3-6mm的中焦、粒度为0-3mm的细焦和粒度小于等于0.8mm的粉焦,其中粗焦占整体干料的7-11%,中焦占整体干料的19-23%,细焦占整体干料的22-27%,粉焦占整体干料的28-29%。
3.根据权利要求2所述的一种新型环保阳极炭块的生产方法,其特征是:所述残极包括粒度为3-12mm的粗残和粒度为0-3mm的细残,其中粗残占整体干料的0-10%,细残占整体干料的0-10%;所述废阴极炭块的粒度为0-3mm,占整体干料的0-5%;所述生碎的粒度为0-3mm,占整体干料的0-3%。
4.根据权利要求1所述的一种新型环保阳极炭块的生产方法,其特征是:所述废阴极炭块指的是电解槽大修时废弃的阴极炭块,经清除其表面的残留电解质和附着物后进行破碎处理,破碎成粒度为0-3mm的颗粒。
5.根据权利要求1所述的一种新型环保阳极炭块的生产方法,其特征是:所述煅后焦指的是石油焦在隔绝空气的情况下经回转窑或罐式煅烧炉经1250-1350℃的高温煅烧得到的产品;残极是指电解槽阳极残极。
6.根据权利要求1所述的一种新型环保阳极炭块的生产方法,其特征是:所述酚醛树脂包括生物质改性酚醛树脂、沥青改性酚醛树脂、煤焦油改性酚醛树脂、烷基酚改性酚醛树脂及橡胶改性酚醛树脂中的一种或者几种。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110889111.2A CN113603488A (zh) | 2021-08-04 | 2021-08-04 | 一种新型环保阳极炭块的生产方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110889111.2A CN113603488A (zh) | 2021-08-04 | 2021-08-04 | 一种新型环保阳极炭块的生产方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN113603488A true CN113603488A (zh) | 2021-11-05 |
Family
ID=78306686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110889111.2A Pending CN113603488A (zh) | 2021-08-04 | 2021-08-04 | 一种新型环保阳极炭块的生产方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113603488A (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114318421A (zh) * | 2022-01-27 | 2022-04-12 | 济南万瑞炭素有限责任公司 | 一种树脂基预焙阳极及其制备工艺 |
US11613822B1 (en) | 2022-01-10 | 2023-03-28 | Shandong Shengquan New Materials Co., Ltd. | Resin carbon anode green body and preparation method thereof, green body intermediate and preparation method thereof, and carbon anode and preparation method thereof |
CN116409994A (zh) * | 2022-01-10 | 2023-07-11 | 山东圣泉新材料股份有限公司 | 树脂炭素阳极生坯及制备方法、生坯中间体及制备方法、炭素阳极及制备方法 |
US20240209178A1 (en) * | 2021-05-14 | 2024-06-27 | Procarbon Bio Ab | Charcoal products made with phenolic resin binder and methods for making thereof |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4431503A (en) * | 1981-06-22 | 1984-02-14 | Metallurgical, Inc. | Energy reduction in the manufacture of pre-baked carbon containing electrodes for electrolytic production of metals such as aluminum |
US4512858A (en) * | 1983-02-19 | 1985-04-23 | Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung | Method of producing an electrode usable as a flow-through anode |
CN101974766A (zh) * | 2010-09-30 | 2011-02-16 | 湖南晟通科技集团有限公司 | 一种炭素预焙阳极 |
CN106757161A (zh) * | 2016-12-01 | 2017-05-31 | 山东南山铝业股份有限公司 | 改性预焙阳极及其制备方法 |
CN109400163A (zh) * | 2018-12-30 | 2019-03-01 | 山东圣泉新材料股份有限公司 | 一种炭素阳极及其制备方法和应用 |
CN109678509A (zh) * | 2019-02-26 | 2019-04-26 | 索通发展股份有限公司 | 一种水性树脂基预焙碳阳极的制备方法 |
CN112453013A (zh) * | 2020-10-15 | 2021-03-09 | 河南中孚炭素有限公司 | 一种铝电解槽废阴极无害化处理方法 |
-
2021
- 2021-08-04 CN CN202110889111.2A patent/CN113603488A/zh active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4431503A (en) * | 1981-06-22 | 1984-02-14 | Metallurgical, Inc. | Energy reduction in the manufacture of pre-baked carbon containing electrodes for electrolytic production of metals such as aluminum |
US4512858A (en) * | 1983-02-19 | 1985-04-23 | Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung | Method of producing an electrode usable as a flow-through anode |
CN101974766A (zh) * | 2010-09-30 | 2011-02-16 | 湖南晟通科技集团有限公司 | 一种炭素预焙阳极 |
CN106757161A (zh) * | 2016-12-01 | 2017-05-31 | 山东南山铝业股份有限公司 | 改性预焙阳极及其制备方法 |
CN109400163A (zh) * | 2018-12-30 | 2019-03-01 | 山东圣泉新材料股份有限公司 | 一种炭素阳极及其制备方法和应用 |
CN109678509A (zh) * | 2019-02-26 | 2019-04-26 | 索通发展股份有限公司 | 一种水性树脂基预焙碳阳极的制备方法 |
CN112453013A (zh) * | 2020-10-15 | 2021-03-09 | 河南中孚炭素有限公司 | 一种铝电解槽废阴极无害化处理方法 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20240209178A1 (en) * | 2021-05-14 | 2024-06-27 | Procarbon Bio Ab | Charcoal products made with phenolic resin binder and methods for making thereof |
US11613822B1 (en) | 2022-01-10 | 2023-03-28 | Shandong Shengquan New Materials Co., Ltd. | Resin carbon anode green body and preparation method thereof, green body intermediate and preparation method thereof, and carbon anode and preparation method thereof |
CN116409994A (zh) * | 2022-01-10 | 2023-07-11 | 山东圣泉新材料股份有限公司 | 树脂炭素阳极生坯及制备方法、生坯中间体及制备方法、炭素阳极及制备方法 |
EP4209471A1 (en) * | 2022-01-10 | 2023-07-12 | Shandong Shengquan New Materials Co., Ltd. | Resin carbon anode green body and preparation method thereof, green body intermediate and preparation method thereof, and carbon anode and preparation method thereof |
WO2023131335A1 (zh) * | 2022-01-10 | 2023-07-13 | 山东圣泉新材料股份有限公司 | 树脂炭素阳极生坯及制备方法、生坯中间体及制备方法、炭素阳极及制备方法 |
CN116444273A (zh) * | 2022-01-10 | 2023-07-18 | 山东圣泉新材料股份有限公司 | 树脂炭素阳极生坯及制备方法、生坯中间体及制备方法、炭素阳极及制备方法 |
CN114318421A (zh) * | 2022-01-27 | 2022-04-12 | 济南万瑞炭素有限责任公司 | 一种树脂基预焙阳极及其制备工艺 |
CN114318421B (zh) * | 2022-01-27 | 2024-02-23 | 济南万瑞炭素有限责任公司 | 一种树脂基预焙阳极及其制备工艺 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN113603488A (zh) | 一种新型环保阳极炭块的生产方法 | |
CN109400163B (zh) | 一种炭素阳极及其制备方法和应用 | |
CN100580146C (zh) | 一浸二焙阳极炭块的生产方法 | |
CN103484896B (zh) | 一种电解铝用低成本碳素阳极及其制备方法 | |
CN105272287A (zh) | 一种用再生石墨制备石墨坩埚的方法 | |
CN107235728B (zh) | 一种预焙阳极节能生产的工艺 | |
CN103952721B (zh) | 一种兰炭基铝电解用炭素阳极及其制备方法 | |
CN102010202A (zh) | 一种制备电解铝用冷捣糊的方法 | |
CN103880447B (zh) | Corex炉用刚玉莫来石复合砖及其制备方法 | |
CN109678509B (zh) | 一种水性树脂基预焙碳阳极的制备方法 | |
CN102898156A (zh) | 一种钢包渣线镁碳砖及其制备方法 | |
CN101319331B (zh) | 制氟用含铜碳阳极的制造方法 | |
CN109778236B (zh) | 一种电解铝用预焙阳极 | |
CN113584531A (zh) | 高抗氧化性预焙阳极生产工艺 | |
CN114213127A (zh) | 一种石墨坩埚的制备方法 | |
CN110668831A (zh) | 一种用于钢包包沿部位的再生铝镁碳砖制备方法 | |
CN106517207A (zh) | 一种制备电石型球的方法 | |
CN100494507C (zh) | 高体密半石墨质阴极炭块及其生产方法 | |
CN101225530B (zh) | 低灰炭质原料在制造预焙阳极中的应用 | |
CN101696364A (zh) | 以焦炭碎末制造冶金块焦的粘结剂及其制备方法 | |
CN100480431C (zh) | 石墨化阴极生产工艺 | |
CN1986896B (zh) | 大规格铝用高石墨质阴极炭块及其生产方法 | |
CN102041379A (zh) | 一种酸再生铁粉的利用方法 | |
CN104532297A (zh) | 一种铝用碳素阳极及其制备方法 | |
CN108706586A (zh) | 一种采用半焦和生石灰压制复合块料的方法 |
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 | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211105 |