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首页> 外文会议>Symposium on Sulfide Smelting 2002, Feb 17-21, 2002, Seattle, Washington >RECENT IMPROVEMENTS IN THE ACID PLANT AT NAOSHIMA SMELTER
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RECENT IMPROVEMENTS IN THE ACID PLANT AT NAOSHIMA SMELTER

机译：NAOSHIMA SMELTER酸厂的最新改进

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摘要

The enlarged Mitsubishi process in Naoshima has been in steady operation since May 1991. However, the sulfuric acid plants have been in operation for more than 30 years. The acid plants were modernized between 1999 and 2001 by renewing some of main equipment such as the drying tower and gas heat exchangers, and introducing new technology. At the same time, as an electric energy saving measure, the electric power consumption in the sulfuric acid plant was vastly improved by decreasing the volume of gas treated the installation of low temperature activity catalyst in the 1st pass of the converter and optimization of main gas blower runner. Furthermore, last year, the oxygen plant was replaced and enlarged, and anode production increased from 240,000 to 280,000 tonnes per year with an associated increase of sulfuric acid from 550,000 to 660,000 tonnes per year. This paper describes these recent improvements in the acid plant at Naoshima smelter.
机译：自1991年5月以来，直岛扩大的三菱工艺一直在稳定运行。但是，硫酸工厂已经运行了30多年。通过更新一些主要设备（例如干燥塔和气体热交换器）并引进新技术，在1999年至2001年之间对酸工厂进行了现代化改造。同时，作为一种节能措施，通过减少转炉第一次通过安装低温活性催化剂的处理过的气体量并优化了主气，大大提高了硫酸工厂的电力消耗。鼓风机赛跑者。此外，去年更换并扩建了制氧厂，阳极产量从每年240,000吨增加到280,000吨，同时硫酸也从每年550,000吨增加到660,000吨。本文介绍了直岛冶炼厂酸厂最近的这些改进。

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