液体二氧化硫技改工程的探索实践.pdf

第34卷第4期
甘肃治金
Vol 34 No 4
2012年8月
GANSU METALLURGY
Aug.,2012
文章编号:1672-4461(2012)04-0059-04
液体二氧化硫技改工程的探索实践
程亮,李俞良,李守荣,鲁兴武,马爱军
(西北矿治研究院治金新材料研究所,甘肃白银730900
摘要:本文叙述了某厂硫磺-氧气燃烧法”制液体二氧化硫技改工程的主要内容及经验。介绍了新旧生产装置
在焚硫方式上的不同及改进方案,将原有装置粗放型”的燃硫方式改为硫磺与氧气摩尔比为1.05~1.1燃烧,有
效的控制了硫磺蒸汽的产生量,减小了收尘系统的负荷,降低了操作费用,对提高产品质量起了重要作用。新装置
通过增加浓硫酸喷淋洗涤塔和浓硫酸填料洗涤塔洗涤〓氧化硫烟气,能有效去除烟气中所含超细硫磺粉使液体二
氧化碗硫产品达到优等品指标。新装置没有生产废水和废渣的排放,在开车后72h内需要逐步对装置中的设备进行
排空产生含二氧化硫的废气,可以对其进行碱液吸收,所以新装置对环境不造成危害
关键词:硫磺;液体二氧化硫;焚硫炉;硫磺粉;燃烧;硫磺蒸汽
中图分类号:TF802.6
文献标识码:A
Exploration and Practice on Technical Renovation Project
of Liquid Suffur Dioxide
CHENG Liang, LI Yu-liang LI Shou-rong, LU Xing-wu, MA Ai-jun
(Northwest Institute of Mining Metallurgy, Baiyin 730900, China)
Abstract This paper describes the main content and experience in the technical renovation project of liquid sulfur dioxide
system in a factory using sulfur - ox en combustion meth. The diferences etween the old and new production plant in
way of sulfur burning were introduced. The coarse sulfur combustion method in original device was converted into sulfur and
oxygen buring with molar ratio of 1.05 to 1. 1, resulting in ef ective suppression of sulfur steam generation and load reduc-
tion of the dust collection system, operating costs were reduced, product quality improved. The new device can effectively
remove the ue gas contained in the ultra-fine sulfur powder in liquid sulfur dioxide to achieve superior product indicator
by adding concentrated sulfuric acid spray sorubber and concentrated sulfuric acid filler scrubber to wash sulfur dioxide in
flue gas. The new device did not produce waste water and waste emissions, but the exhaust gas containing sulfur dioxide in
the device need to be gradually emptied and absorbed by lye within 72 hours after operation, so the new devices pose n
harm to the environment
Key Words: sulfur; liquid sulfur dioxide; burning sulfur fumace; sulfur powder; combustion; sulfur steam
1引言
体,然后经压缩或冷冻将其液化。重要的工业生产
方法有:
液体二氧化硫为无色透明液体,有刺激性臭味。
(1)哈涅希一希洛特法。此法始创于1884年,以
相对密度1.43(0度),溶于水、乙醇和乙醚。在高水作吸收剂,吸收二氧化硫后的溶液以蒸汽解吸,解
温催化剂存在条件下,可被氢还原成硫化氢,被一氧吸气经冷凝、干燥后液化。现在发展了加压水吸收
化碳还原成硫。工业上多种化合物的良好溶剂
用作还原剂、冷冻剂、防腐剂、漂白剂及其他有机产
(2)氨一-硫酸法。此法常用于一次转化的接触法
品原料,制造保险粉和亚硫酸盐,常用于有色冶炼、硫酸厂中尾气二氧化硫的回收。以氨水为原始吸收
农药、医药、人造纤维和染料等行业。
剂,用硫酸分解吸收液,制得纯二氧化硫气体。
生产液体二氧化硫时通常先制得纯二氧化硫气
(3)溶液吸收法。以无机或有机溶液吸收低浓度
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