| 摘要 |
<p>The present invention relates to a device for manufacturing coal briquettes by compressing coal, and comprises: a pair of roller bodies each of which has a hollow unit and compression grooves formed along the circumferential direction of the outer peripheral surface; and a spray nozzle spraying cold wind to the position in which the roller bodies are interlocked with each other and coal is compressed to deep-freeze the compressed coal briquettes.</p> |
