| 摘要 |
An apparatus 10 and method of drying material comprises a casing 12 having an internal channel 14 and filter 20 located within the casing, an inlet 34 through which damp material 18 (coal) and a transport gas (air) are fed into the casing and internal channel, and after the damp material has been dried in the internal channel it is passed as dried material along with the transport gas through the filter and exit the casing through an outlet 38. The apparatus is a cyclonic separator and drier. The material may be particulate, granular or powder and pneumatically conveyed. The filter is tubular and attached to the apparatus via an end plate (22, fig 3), and may comprise of a series of spaced rings and round vertical bars. The inlet may be tangential to the casing. The material exits the casing through bent pipe such as a T-bend 36. The apparatus may be retrofitted and may be used in a pulverised coal injection system for blast furnaces. The material may be dried by natural evaporation or the casing may be heated to reduce the drying time. |
