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一、国内外开发概况 (一)选煤技术国外开发慨况近年来,随着机械化采煤技术、燃煤新技术的发展以及环保标准的日趋严格,促使国外选煤技术向着高效率、大型化、自动化及简化工艺流程的方向发展,研究开发的重点逐渐移向高硫煤、细颗粒煤及末煤的脱硫方面。常规选煤技术(跳汰、重介、摇床、泡沫浮选等)已经成熟,并不断提高和完善,满足了工业生产的要求。同时,由于常规选煤技术脱硫的局限性,又推动了物理选煤脱硫新技术(重液旋流分选、静电分选、磁选、微气泡浮选、选择性凝聚等)、化学选煤脱硫技术(氯化
I. Overview of Development at Home and Abroad (I) Status of Overseas Development of Coal Preparation Technology In recent years, with the development of mechanized coal mining technology, new coal-fired technologies and increasingly stringent environmental standards, the promotion of foreign coal preparation technology toward high efficiency and large-scale , The direction of automation and streamlining of process development, research and development focus gradually shifted to high-sulfur coal, fine coal and coal desulfurization aspects. Conventional coal preparation technology (jig, heavy medium, shaker, froth flotation, etc.) have matured, and continue to improve and perfect, to meet the requirements of industrial production. At the same time, due to the limitation of desulphurization of conventional coal preparation technology, new technologies of physical coal preparation desulphurization (heavy liquid cyclone separation, electrostatic separation, magnetic separation, microbubble flotation, selective aggregation, etc.), chemical coal preparation Desulfurization technology (chlorination