| 摘要 |
A screening panel moulded in one piece in plastics material has a plurality of surface members 11 running generally in the direction 'A' and supported on transverse members 12. The surface members 11 define a substantially raised surface having a plurality of slots or gaps 13 of substantially constant dimension through which material to be screened will pass if it is below the screen size defined by the gaps 13 The surface members 11 project a significant distance above the transverse members 12 in order to provide a surface having substantially uninterrupted slots 13. The structure and material are designed to increase flexibility of the panel which assists in keeping the panel clear without any significant degradation of the sizing capability of the screen. The panel has three flexing modes which assist in clearing the panel, these being horizontal bending of the surface members 11 in the direction 'B', vertical bending of the members 11 in the direction 'C', and twisting of the members 11 about the longitudinal axis.
|
