Steeply inclined settlers (SIS) are solid–liquid separators that feature close, inclined confining elements that allow significant settling enhancement when compared to vertical tanks, resulting in relatively low footprints at equal throughput. The present article reviews the working principle, flow configuration, capacity, and several technological advances related to this kind of equipment. The consistency of the Ponder, Nakamura and Kuroda theory, developed after the discovery of the Boycott effect in 1920, which is essential to the settling enhancement effect, and the engineering approach developed independently for the design of SIS settlers during the late 1960’s, based on particle trajectory analysis, is established. A discussion about potential developments for future improvement of the technology is made, with emphasis on three main topical areas: improvements of settling element array, optimization of inlet conditions, and potential improvements of the design of settling elements. The application of the technology to the mining industry is discussed in the context of increasing water scarcity and the progressive ore grade decrease.

陡倾斜沉降器 (SIS) 是固液分离器，具有紧密的倾斜限制元件，与立式罐相比，可以显着增强沉降，从而在相同的吞吐量下产生相对较小的占地面积。本文综述了与此类设备相关的工作原理、流程配置、容量以及几项技术进步。Ponder、Nakamura 和 Kuroda 理论的一致性是在 1920 年发现对沉降增强效应至关重要的抵制效应之后发展起来的，而工程方法在 1960 年代后期独立开发用于 SIS 定居者的设计，基于粒子轨迹分析，建立。讨论了该技术未来改进的潜在发展，重点关注三个主要主题领域：沉降元件阵列的改进、入口条件的优化以及沉降元件设计的潜在改进。在越来越多的背景下讨论了该技术在采矿业中的应用缺水和矿石品位递减。