基于传热传质的氧化铝溶解过程分析和建模

基于铝电解槽熔体内氧化铝溶解过程动力学机理,提出了综合的传热传质控制模型,以描述未结块和结块氧化铝颗粒的溶解过程.基于相关商业软件和自定义算法,并结合颗粒收缩核模型,采用合适的差分求解方法,对氧化铝颗粒溶解速率、溶解时间和溶解质量进行计算,探讨若干对流和热条件参数对氧化铝溶解过程的影响.结果表明:降低氧化铝浓度和增大氧化铝扩散速率可以增大未结块颗粒溶解速率,减少未结块颗粒溶解时间;提高电解质过热度和氧化铝预热温度可以增大结块颗粒溶解速率,减少结块颗粒溶解时间.对某300 kA铝电解槽内氧化铝溶解过程进行计算分析,得到的氧化铝溶解质量比例曲线数据与文献结果比较接近;氧化铝溶解过程主要分为两个阶段...

Full description

Saved in:
Bibliographic Details
Published in中国有色金属学报（英文版） no. 5; pp. 1648 - 1656
Main Authors 詹水清, 李茂, 周孑民, 杨建红, 周益文
Format Journal Article
LanguageChinese
Published 中南大学能源科学与工程学院,长沙,410083%中国铝业股份有限公司郑州研究院,郑州,450041 2015
Subjects
alumina particles
差分求解方法
铝电解槽
dissolution process
溶解过程
传热传质
heat and mass transfer
finite difference method
aluminum reduction cell
氧化铝颗粒
Online AccessGet full text

Cover

Abstract 基于铝电解槽熔体内氧化铝溶解过程动力学机理,提出了综合的传热传质控制模型,以描述未结块和结块氧化铝颗粒的溶解过程.基于相关商业软件和自定义算法,并结合颗粒收缩核模型,采用合适的差分求解方法,对氧化铝颗粒溶解速率、溶解时间和溶解质量进行计算,探讨若干对流和热条件参数对氧化铝溶解过程的影响.结果表明:降低氧化铝浓度和增大氧化铝扩散速率可以增大未结块颗粒溶解速率,减少未结块颗粒溶解时间;提高电解质过热度和氧化铝预热温度可以增大结块颗粒溶解速率,减少结块颗粒溶解时间.对某300 kA铝电解槽内氧化铝溶解过程进行计算分析,得到的氧化铝溶解质量比例曲线数据与文献结果比较接近;氧化铝溶解过程主要分为两个阶段:未结块颗粒的快速溶解和结块颗粒的缓慢溶解,溶解时间数量级大小分别大约为10和100 s;结块颗粒是影响整个氧化铝溶解过程的最主要因素.
AbstractList 基于铝电解槽熔体内氧化铝溶解过程动力学机理,提出了综合的传热传质控制模型,以描述未结块和结块氧化铝颗粒的溶解过程.基于相关商业软件和自定义算法,并结合颗粒收缩核模型,采用合适的差分求解方法,对氧化铝颗粒溶解速率、溶解时间和溶解质量进行计算,探讨若干对流和热条件参数对氧化铝溶解过程的影响.结果表明:降低氧化铝浓度和增大氧化铝扩散速率可以增大未结块颗粒溶解速率,减少未结块颗粒溶解时间;提高电解质过热度和氧化铝预热温度可以增大结块颗粒溶解速率,减少结块颗粒溶解时间.对某300 kA铝电解槽内氧化铝溶解过程进行计算分析,得到的氧化铝溶解质量比例曲线数据与文献结果比较接近;氧化铝溶解过程主要分为两个阶段:未结块颗粒的快速溶解和结块颗粒的缓慢溶解,溶解时间数量级大小分别大约为10和100 s;结块颗粒是影响整个氧化铝溶解过程的最主要因素.
Abstract_FL A comprehensive heat and mass transfer model of dissolution process of non-agglomerated and agglomerated alumina particles was established in an aluminum reduction cell. An appropriate finite difference method was used to calculate the size dissolution rate, dissolution time and mass of alumina dissolved employing commercial software and custom algorithm based on the shrinking sphere assumption. The effects of some convection and thermal condition parameters on the dissolution process were studied. The calculated results show that the decrease of alumina content or the increase of alumina diffusion coefficient is beneficial for the increase of size dissolution rate and the decrease of dissolution time of non-agglomerated particles. The increase of bath superheat or alumina preheating temperature results in the increase of size dissolution rate and the decrease of dissolution time of agglomerated particles. The calculated dissolution curve of alumina (mass fraction of alumina dissolved) for a 300 kA aluminum reduction cell is in well accordance with the experimental results. The analysis shows that the dissolution process of alumina can be divided into two distinct stages: the fast dissolution stage of non-agglomerated particles and the slow dissolution stage of agglomerated particles, with the dissolution time in the order of 10 and 100 s, respectively. The agglomerated particles were identified to be the most important factor limiting the dissolution process.
Author 周孑民
杨建红
李茂
周益文
詹水清
AuthorAffiliation 中南大学能源科学与工程学院,长沙,410083%中国铝业股份有限公司郑州研究院,郑州,450041
AuthorAffiliation_xml – name: 中南大学能源科学与工程学院,长沙,410083%中国铝业股份有限公司郑州研究院,郑州,450041
Author_FL Shui-qing ZHAN
Jie-min ZHOU
Jian-hong YANG
Mao LI
Yi-wen ZHOU
Author_FL_xml – sequence: 1
  fullname: Shui-qing ZHAN
– sequence: 2
  fullname: Mao LI
– sequence: 3
  fullname: Jie-min ZHOU
– sequence: 4
  fullname: Jian-hong YANG
– sequence: 5
  fullname: Yi-wen ZHOU
Author_xml – sequence: 1
  fullname: 詹水清
– sequence: 2
  fullname: 李茂
– sequence: 3
  fullname: 周孑民
– sequence: 4
  fullname: 杨建红
– sequence: 5
  fullname: 周益文
BookMark eNrjYmDJy89LZWCQNTTQMzQwNNMPNjQwMNY1MzYy0zA01TQzNjc30DVgYeCEC3Mw8BYXZyYZGBqamBpYGhpyMlg-nb_rya6-J3sWPG9eCyRfbFnxfFbLsw3Ln_ZMezl57rNd214sX_xif_vzFd1PO9qezZvwdFLP0927nq1YyMPAmpaYU5zKC6W5GbTdXEOcPXTLE_PSEvPS47PyS4vygDLxVemVxVnFFUnxqUYGhqYGpgbG5sakqQYAe3NYrA
ContentType Journal Article
Copyright Copyright © Wanfang Data Co. Ltd. All Rights Reserved.
Copyright_xml – notice: Copyright © Wanfang Data Co. Ltd. All Rights Reserved.
DBID 2B.
4A8
92I
93N
PSX
TCJ
DOI 10.1016/S1003-6326(15)63770-0
DatabaseName Wanfang Data Journals - Hong Kong
WANFANG Data Centre
Wanfang Data Journals
万方数据期刊 - 香港版
China Online Journals (COJ)
China Online Journals (COJ)
DatabaseTitleList
DeliveryMethod fulltext_linktorsrc
Discipline Engineering
DocumentTitle_FL Analysis and modeling of alumina dissolution based on heat and mass transfer
EndPage 1656
ExternalDocumentID zgysjsxb_e201505037
GrantInformation_xml – fundername: Foundation item:Project supported by the High-tech Research and Development Program of China; Project supported by the Fundamental Research Funds for the Central Universities of Central South University, China; Project supported by the Major Program for Aluminum Corporation of China Limited
  funderid: (2010AA065201) supported by the High-tech Research and Development Program of China; (2013zzts038) supported by the Fundamental Research Funds for the Central Universities of Central South University, China; (ZB2011CBBCe1) supported by the Major Program for Aluminum Corporation of China Limited
GroupedDBID --K
--M
-02
-0B
-SB
-S~
.~1
0R~
123
188
1B1
1~.
1~5
2B.
2C0
4.4
457
4A8
4G.
5VR
5VS
5XA
5XC
7-5
71M
8P~
8RM
92H
92I
92M
92R
93N
9D9
9DB
AABNK
AABXZ
AACTN
AAEDT
AAEDW
AAEPC
AAIKJ
AAKOC
AALRI
AAOAW
AAQFI
AAXDM
AAXKI
AAXUO
ABFNM
ABMAC
ABXDB
ABXRA
ACDAQ
ACGFS
ACNNM
ACRLP
ADBBV
ADEZE
ADMUD
ADVLN
AEBSH
AEKER
AENEX
AEZYN
AFKWA
AFRZQ
AFTJW
AFUIB
AGHFR
AGUBO
AGYEJ
AIEXJ
AIKHN
AITUG
AJOXV
AKRWK
ALMA_UNASSIGNED_HOLDINGS
AMFUW
AMRAJ
AXJTR
BKOJK
BLXMC
CAJEB
CCEZO
CDRFL
CHBEP
CS3
CW9
DU5
EBS
EFJIC
EJD
EO9
EP2
EP3
FA0
FDB
FIRID
FNPLU
FYGXN
GBLVA
HZ~
J1W
JUIAU
KOM
M41
MAGPM
MO0
N9A
O-L
O9-
OAUVE
OZT
P-8
P-9
PC.
PSX
Q--
Q38
R-B
ROL
RT2
S..
SDC
SDF
SDG
SES
SPC
SSM
SSZ
T5K
T8R
TCJ
TGT
U1F
U1G
U5B
U5L
UGNYK
UZ4
~02
~G-
ID FETCH-wanfang_journals_zgysjsxb_e2015050373
ISSN 1003-6326
IngestDate Wed Nov 06 04:38:20 EST 2024
IsPeerReviewed true
IsScholarly true
Issue 5
Keywords alumina particles
差分求解方法
铝电解槽
dissolution process
溶解过程
传热传质
heat and mass transfer
finite difference method
aluminum reduction cell
氧化铝颗粒
Language Chinese
LinkModel OpenURL
MergedId FETCHMERGED-wanfang_journals_zgysjsxb_e2015050373
ParticipantIDs wanfang_journals_zgysjsxb_e201505037
PublicationCentury 2000
PublicationDate 2015
PublicationDateYYYYMMDD 2015-01-01
PublicationDate_xml – year: 2015
  text: 2015
PublicationDecade 2010
PublicationTitle 中国有色金属学报（英文版）
PublicationTitle_FL Transactions of Nonferrous Metals Society of China
PublicationYear 2015
Publisher 中南大学能源科学与工程学院,长沙,410083%中国铝业股份有限公司郑州研究院,郑州,450041
Publisher_xml – name: 中南大学能源科学与工程学院,长沙,410083%中国铝业股份有限公司郑州研究院,郑州,450041
SSID ssib011450911
ssib018829757
ssib004675276
ssib021503227
ssib004298932
ssib051367786
ssj0044661
ssib006703194
ssib022315879
ssib023168045
ssib045316856
Score 4.258984
Snippet ...
SourceID wanfang
SourceType Aggregation Database
StartPage 1648
Title 基于传热传质的氧化铝溶解过程分析和建模
URI https://d.wanfangdata.com.cn/periodical/zgysjsxb-e201505037
hasFullText 1
inHoldings 1
isFullTextHit
isPrint
link http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwnV3NaxQxFA91e9GD-Inf9NCAIqs7k8lMcsxsZ6mKvViht7KzO7vFwwpuC9qrooJFRMGD4Bce2ovgQTysgv9Md1v_C997k51Jyx6ql_A2eXl5eb_s5CUzeWFsVrUgX6RpFdzRFF8zRtUm-B3VVIhOS-h2kFJ0_tsL4fzd4OaSXJqqdJ2vltZW02ut9YnnSv4HVcgDXPGU7D8gWwiFDKABX0gBYUgPhDFPJNcNHhueBJiqhIg6NzWeRFwJbuacHMXjgBuFRRqYA56EPK5xE6EcVec65InmWnA9R0WGxyHWAgYjqHqDqwirgxAVUy0gQmTWCdc10sdHUUDEMSkWIrPxXCeYVFKkG_ADGzWn61xpbAXS2EdNoC3tkSgP5QMBVQw1pww3kicN7BrokJA-wIZyQqskyMGinKfY76AOQQva9j7OzQACZMkSognQmgo7o_yyRKJKaENSRntWivb2Vc5ZrA0iTI3v7rDkp0vp37DHHAqEEh4msMDYPiuEMx4DowlgMzaQ5SE5iiwVR2QgByrLAwBr0AX-WkRLBBVl-pjv1wMMwyS4LyeBVAwOKoIxhFr5gC7l7AOSGsrHhILWaUyoBlZEaMUY2oigjXCA6oAITcNur577-EFPiTHcnCkVv34MRR4XwT5NpDNlwnpdOe4XRoOaOLXnu0x3CnEYx0xyHyaQCO9OKv2Z4ivT9e6j_r3-w3Q5Q1Qx8FF0iE37MCPJCps2N27NL7huGXjubqS7SPqOpx7iPQ_l1OV5AXraxdToKTqiXnjy4EjXYKosf8MySqryhbiP98U5F0EEEjPKsFYSIylSZMfcqcSvLmjvaNz78jDi9dIklz15xZqDziD2Os1e13GXF4-xo3adO2Pyh9ZxNrW-coIdcaKfnmR6-HGwPXi5_evTzuOvkO5-39p592T0bXO48fbPm_ejwY_dzS-7v5_tbL0YPn86-vBq-Hpj-HMw2vp8il1tJIv1-aptfNk-LfvLE8AQp1mld7-XnWEzofBSIb1OpvCWhXanmYI525nIdNhUHZ2dZbMHkXjuYGzn2WGk853UC6yy-mAtuwhri9X0kh0XfwGqlM7z
link.rule.ids 315,783,787,4031,27935,27936,27937
linkProvider Elsevier
openUrl ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=%E5%9F%BA%E4%BA%8E%E4%BC%A0%E7%83%AD%E4%BC%A0%E8%B4%A8%E7%9A%84%E6%B0%A7%E5%8C%96%E9%93%9D%E6%BA%B6%E8%A7%A3%E8%BF%87%E7%A8%8B%E5%88%86%E6%9E%90%E5%92%8C%E5%BB%BA%E6%A8%A1&rft.jtitle=%E4%B8%AD%E5%9B%BD%E6%9C%89%E8%89%B2%E9%87%91%E5%B1%9E%E5%AD%A6%E6%8A%A5%EF%BC%88%E8%8B%B1%E6%96%87%E7%89%88%EF%BC%89&rft.au=%E8%A9%B9%E6%B0%B4%E6%B8%85&rft.au=%E6%9D%8E%E8%8C%82&rft.au=%E5%91%A8%E5%AD%91%E6%B0%91&rft.au=%E6%9D%A8%E5%BB%BA%E7%BA%A2&rft.date=2015&rft.pub=%E4%B8%AD%E5%8D%97%E5%A4%A7%E5%AD%A6%E8%83%BD%E6%BA%90%E7%A7%91%E5%AD%A6%E4%B8%8E%E5%B7%A5%E7%A8%8B%E5%AD%A6%E9%99%A2%2C%E9%95%BF%E6%B2%99%2C410083%25%E4%B8%AD%E5%9B%BD%E9%93%9D%E4%B8%9A%E8%82%A1%E4%BB%BD%E6%9C%89%E9%99%90%E5%85%AC%E5%8F%B8%E9%83%91%E5%B7%9E%E7%A0%94%E7%A9%B6%E9%99%A2%2C%E9%83%91%E5%B7%9E%2C450041&rft.issn=1003-6326&rft.issue=5&rft.spage=1648&rft.epage=1656&rft_id=info:doi/10.1016%2FS1003-6326%2815%2963770-0&rft.externalDocID=zgysjsxb_e201505037
thumbnail_s http://utb.summon.serialssolutions.com/2.0.0/image/custom?url=http%3A%2F%2Fwww.wanfangdata.com.cn%2Fimages%2FPeriodicalImages%2Fzgysjsxb-e%2Fzgysjsxb-e.jpg