The technology of preparation of coal for coking includes storing in silo. Coal goes into silo with a humidity of up to 10–12%. The coking of coal with high humidity reduces the productivity of coke batteries and the quality of coke. Reducing the humidity of coal, as a negative factor in technology, is an important technical task. An increase in the moisture content of coal increases the energy consumption for heating the batch during coking. For each percentage of humidity, heat consumption for coking increases by 3%; coking time by 20–30 min. At the same time, the productivity of coke ovens decreases, the wear of the refractory masonry increases, and the quality of coke deteriorates. When choosing a drying technology, it becomes fundamental to fulfill a number of technical and economic parameters, such as the energy consumption of the process, the uniformity of drying, and the time to achieve the specified moisture content. These indicators can be ensured through a competent approach to the selection of appropriate drying technologies, as well as by creating equipment on which these processes and technologies can be implemented.

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Electroosmosis as a Method of Drying Coal Batch

  • Kateryna Shmeltser,
  • Maryna Kormer,
  • Natalia Desna,
  • Iryna Mykhailova

摘要

The technology of preparation of coal for coking includes storing in silo. Coal goes into silo with a humidity of up to 10–12%. The coking of coal with high humidity reduces the productivity of coke batteries and the quality of coke. Reducing the humidity of coal, as a negative factor in technology, is an important technical task. An increase in the moisture content of coal increases the energy consumption for heating the batch during coking. For each percentage of humidity, heat consumption for coking increases by 3%; coking time by 20–30 min. At the same time, the productivity of coke ovens decreases, the wear of the refractory masonry increases, and the quality of coke deteriorates. When choosing a drying technology, it becomes fundamental to fulfill a number of technical and economic parameters, such as the energy consumption of the process, the uniformity of drying, and the time to achieve the specified moisture content. These indicators can be ensured through a competent approach to the selection of appropriate drying technologies, as well as by creating equipment on which these processes and technologies can be implemented.