| 摘要 |
PURPOSE: A screen device is provided to improve lifetime of a screen mat because a center part of the screen mat is not quickly worn out, by using all of the center part and an outer part of the screen mat. CONSTITUTION: A screen device comprises a screen mat(310) and a raw material dispersing pad(240). The screen mat has a plurality of yarn neck parts selecting raw material supplied from a shaft furnace according to particle size. The raw material dispersing pad is arranged in a raw material influx part of the screen mat and disperses the raw material. The raw material dispersing pad includes a supporting part(341) and a dispersing part(342). The supporting part is combined to the raw material influx part of the screen mat. The dispersing part is installed on the supporting part, and disperses the raw material to the outer part of the screen mat. |
