| 摘要 |
A device for the screening of lump-shaped material during the material's transportation along after the same contained in relation to the direction of transport (6) cross-wise load bearing device (1,2), between which is stretched an elastic, perforated, screening device (3) that is connected to the carrier, and a device in order to instil the load bearing device in such an alternately up and downward movement between upper and lower turning points (A and B) during varying stretching and releasing of the screening element that every other load bearing device is located at the upper turning point (A) when the other load bearing devices are located at or in the vicinity of the lower turning point and vice versa. With the purpose of granting the screening device capacity for the transport of materials over the screening device at an essentially horizontal set up of the same, the upper turning point (A) is displaced against the intended direction of transport in relation to the lower turning point (B).<IMAGE> |
