COAL PREPARATION TECHNOLOGY: STATUS AND DEVELOPMENT IN CHINA

The rapid growth of coal production is supporting China's economic development. This paper discusses significant developments of coal preparation industry in China. The development direction of low-quality coal resources is also described, including the comprehensive utilization of resources and green coal preparation. Coal preparation may shift from the simple separation and production of high-quality products to a comprehensive utilization of associated resources and low-quality coal. Green coal preparation is a new concept and involves a highly efficient coal preparation method based on the water cycle and comprehensive utilization of resources. This paper also describes a technology that transforms coal (mineral) resources (including natural, secondary, and artificial resources) into useful products (including raw materials and fuel) by separation, extraction, and processing for an eco-friendly approach to using secondary resources.

煤炭产量的快速增长支撑着中国的经济发展。本文论述了中国选煤行业的重大发展。还描述了劣质煤资源的发展方向，包括资源的综合利用和绿色选煤。选煤可能从单纯的优质产品分离和生产转向伴生资源和劣质煤的综合利用。绿色选煤是一个新概念，涉及一种基于水循环和资源综合利用的高效选煤方法。本文还介绍了一种通过分离、提取和加工将煤炭（矿物）资源（包括天然、次生和人工资源）转化为有用产品（包括原材料和燃料）的技术，以实现一种对次生资源友好的利用方式。