ZHJL5552D型焦炉配煤结构优化研究Study of Optimizing Coal Blending Structure on ZHJL5552D Model Coke Oven 工程领域：化学工程
作者姓名：王明进
指导教师：王晓静副教授
企业导师：王永林高级工程师
天津大学化工学院
2017年5月
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摘要
虽然我国地大物博、物产丰富，炼焦煤资源储量相对可观，但是仍然面对炼焦煤中优质煤种，例如肥煤、焦煤和气煤等炼焦用煤资源短缺等相关问题。因此，为了更好的利用我国现有煤炭资源来进行配 煤炼焦，需要不断地进行合理适当的配煤结构优化调整，从根本上到最佳的配煤炼焦方案。为了提高配煤的科学性和合理性，需要对炼焦用煤进行全面的分析和评价，从而了解其黏结性和结焦性能等工艺指标，才能最大化的利用现有的炼焦煤资源进行合理的配煤炼焦。通过在炼焦过程中正确的搭配使用现有炼焦煤，减少价格较高的肥煤及焦煤的使用比例，从而降低生产成本，同时提高和改善焦炭质量是现在不可缺少的工作。 某焦化企业炉型为ZHJL5552D型2×65孔5.5m捣固焦炉，因需要进行优质的配煤炼焦，所以需要寻优秀的配煤方案，同时加入一些非主流炼焦用煤来降低成本。经过对实验数据的筛选分析及小焦炉试验，分别研究评价了焦煤、高硫焦煤、肥煤等结焦性之间的各项差异，以及降低焦煤和肥煤比例其焦炭性质的变化情况。试验结果分析表明，不同高硫焦煤、焦煤、肥煤间的结焦性存在着很大的差异，不同的配比所炼出的焦炭质量存在明显差异；如果用气肥煤代替肥煤和焦煤，其焦炭性质改变不大，因此可以用气肥煤代替部分焦煤与肥煤，从而达到降低配煤成本，取得较好焦炭质量。
通过对31种企业用煤详细分析以及搭配配煤方案，通过对20种配煤方案所得到的产品焦炭进行分析，筛选出8组优秀配煤方案用于指导生产。
关键词：ZHJL5552D型焦炉，炼焦煤，配煤，焦炭质量
ABSTRACT
感应门制作
Although China's coking coal resources are abundant,there still exists a shortage of good-quality coking coal resources such as fat coal,caking coal and gas coal.Therefore,in order to utilize our current coal resources for coal blending coking in a better way,it is necessary to make feasible and appropriate adjustment and optimization to coal blending patterns consistently, hence to find best coal blending formulas.On the purpose of heightening the scientific rationality and feasibility of coal blending,it requires to analyze and evaluate coking coals to be consumed from each aspect,and then to have knowledge of their process indices including bonding ability and caking property.Only in this way can current coking coal resources be harnessed to the biggest extent to practice coal blending coking rationally.Now,the dispensable job to be done is elevating and improving coke quality as well as reducing the production cost by correctly coordinating propositions of coking coals to be used in the coking process to decrease the ratios of costly fat coal and caking coal.
A coking company owns the5.5m ZHJL5552D model tamping coke oven with2*65 opening pattern.In order to achieve better coal blending coking,it needs to search for favorable coal blending propositions by adding some inferior coking coals to reduce the cost.After testing on the small coke oven and screening and analyzing experimental data,each single difference related with the caking property between caking coal,high sulfur caking coal,and fat coal as well as variations in coke qualiti
es when decreasing propositions of caking coal and fat coal are investigated and evaluated respectively.The results show,there is a significant difference in caking property between caking coal,high sulfur caking coal,and fat coal;coke qualities are distinctive with different blending coal amounts;coke qualities exhibit minor changes if fat coal and caking coal are substituted by gas coal,hence it is possible to replace caking coal and fat coal partially with gas coal so as to lower coal blending cost and get higher quality cokes.
Eight groups of preferable coal blending schemes designed for production guidance are finalized through firstly making detailed analysis to31kinds of commercial coals under consumption,then conducting thorough discussion on related coal blending formulas and finally testing coke products from20blending schemes.
毛毡带KEY WORDS:ZHJL5552D model coke oven,Coking coal,Coal blending,Coke quality无机砂浆
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