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首页> 外文会议>International Conference on Copper 2003-Cobre 2003 v.4 book 1; 20031130-20031203; Santiago; CL >Selection and operation of indirect steam drying of copper concentrates
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Selection and operation of indirect steam drying of copper concentrates

机译：铜精矿间接蒸汽干燥的选择和操作

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摘要

The need to dry copper concentrates to feed autogenous smelting processes, and to meet increasingly stringent environmental regulations and to reduce smelter operating costs have contributed to the commercialization of cost efficient and cleaner technologies based on indirect steam drying. Kvaerner Eureka's concentrate steam dryer is a proven technology that has contributed to reduce dust entrainment to the exhaust gas stream, thus leading to smaller dust separation units. These steam dryers are particularly designed for high availability, high-energy efficiency, low amount and velocity of exhaust gases, no SO_2, CO or CO_2 emissions, within a wide range of conditions, at low operating cost. However, the copper smelting industry, with few exceptions, is still giving low attention to a number of collateral issues when selecting steam drying technology, particularly those related to energy efficiency, corrosion, product flowability, etc. Based on Kvaerner Eureka's long experience in handling a wide variety of copper and other type of and powders, this paper discusses a number of operational advantages and possibilities offered by the unique coil design of its steam dryer, and criteria for optimal evaluation and technology selection, based on thorough analysis of the causes rather than the symptoms of steam drying operation.
机译：干燥铜精矿以进料自发熔炼工艺，满足日益严格的环境法规以及降低熔炼炉运行成本的需求，促成了基于间接蒸汽干燥的经济高效清洁技术的商业化。 Kvaerner Eureka的浓缩蒸汽干燥机是一项行之有效的技术，它有助于减少粉尘夹带到废气流中，从而减少了粉尘分离装置的数量。这些蒸汽干燥机专为高可用性，高能效，低废气量和低速度而设计，在各种条件下都以较低的运行成本实现了SO_2，CO或CO_2的排放。但是，除少数例外，铜冶炼行业在选择蒸汽干燥技术时仍很少关注一些附带问题，特别是那些与能效，腐蚀，产品流动性等有关的问题。基于Kvaerner Eureka的长期处理经验本文讨论了各种各样的铜以及其他类型的粉末和粉末，讨论了其蒸汽干燥机独特的盘管设计所提供的许多操作优势和可能性，并基于对原因的全面分析得出了最佳评估和技术选择的标准比蒸汽干燥操作的症状。

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