| 摘要 |
The present invention relates to an apparatus that reduces the load of a heap of coal, which is fed and transferred through a pulverizer from a coal quantitative feeder to a multi-stage drier for drying coal using reheat steam, and uniformly spreads and flattens the coal, thereby enhancing drying efficiency in the multi-stage drier. In a coal drying apparatus using reheat steam that is configured to feed coal, which is primarily dried in a first coal drier, to a second coal drier to secondarily dry the coal, the spreading and flattening apparatus comprises: column-shaped bodies installed at a predetermined interval above the upper surfaces of a plurality of first and second transfer plates; dividing protrusions that protrude from the central portions of the front sides of the bodies and divide a heap of coal, which is fed from a coal quantitative feeder to the upper surfaces of the first and second transfer plates, into halves to spread the coal in a left-right direction; and a pair of fixing members that are fixed to the upper ends of first and second guide rails that horizontally support the first transfer plates and the upper ends of third and fourth guide rails that horizontally support the second transfer plates and fixedly support the opposite ends of the bodies, wherein the heap of coal transferred from the upper surfaces of the first and second transfer plates is flattened to a predetermined height, and reheat steam sprayed while passing through the first and second transfer plates is uniformly applied to the surfaces of the coal particles. |
