目前，美国正在研究开发一种叫作“柱状型煤管道运输”的新型管道输煤系统，并将于1998年实现工业示范。在柱状型煤管道中，煤炭是以压制成柱状实现输送的。往状型煤随管道中的输送水流动。这种输煤方式的特点是能耗低，输煤终点处的煤炭脱水工艺简单。此外，往状煤管道输煤方 At present, the United States is studying and developing a new pipeline coal handling system called “pillar coal pipeline transportation” and will implement industrial demonstration in 1998. In the columnar coal pipe, coal is pressed into a column to achieve delivery. Briquette briquette with the pipeline in the transport of water flow. This type of coal handling is characterized by low energy consumption and a simple coal dewatering process at the end of the coal conveyance. In addition, to the coal-side coal transport side