Shenyao Technology’s project for the gasification, dewatering, drying, and comprehensive utilization of fine slag represents a new breakthrough in the efficient conversion of solid waste into resources, particularly in the field of coal chemical waste treatment

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On that day, the concrete pouring for the foundation columns of the boiler in Phase 1 of the gasification fine slag dewatering, drying, and comprehensive utilization project carried out by Shenyao Technology Co., Ltd., a company in which **Energy Group Ningxia Coal Industry holds shares, was successfully completed, accelerating the progress of this project. This project is an important practical effort to implement Ningxia’s 15th Five-Year Plan for the comprehensive utilization of solid waste. It holds significant value as a model for addressing the challenges related to the disposal of solid waste in the coal chemical industry and facilitating its green and low-carbon transformation. Vaporized fine slag is a solid waste generated in the coal gasification process, with its main components being the ash from the raw coal, some unconverted carbon, and the water carried along. With the rapid development of the modern coal chemical industry, the amount of gasification fine slag has increased significantly. Traditional disposal methods have many drawbacks: the moisture content of this fine slag is over 50%, and its open-air storage can lead to dust generation and leachate formation. The residual carbon contained in it also cannot be utilized effectively. In addition, there are issues such as substantial water waste, high costs associated with transportation and wastewater treatment at slag disposal sites, and difficulties in proper disposal. Industrial waste residues are actually \"resources\" in the wrong place. The technologies developed by Shenyao Technology, namely \"deep dehydration and drying of gasified fine residues\" and \"fluidized – suspended coupled self-stabilizing combustion technology for low-calorific-value solid wastes\", first use deep dehydration and drying processes to reduce the moisture content of these fine residues from 85% to below 30%. Then, the residual carbon in these residues is utilized for self-stabilizing combustion (without the need for additional fuel coal) to produce industrial steam, thereby achieving harmless disposal and resource utilization of the gasified fine residues.