| 摘要 |
<p>The invented device for planar apparatus (17) consists of a screen formed by a box (1) with a bottom plate (4) and a discharge of fine material. In the box (1) there is placed a frame (3( with a network (10) having in at least one direction partitions (12, 13) for making cleaning fields in both the frame (3) and the bottom plate (4). In the cleaning fields there are on the bottom plate (4) freely arranged cleaning elements. The frame (3) is made without connecting elements and is placed in the box (1) above the bottom plate (4) removably by means of shaped lockable elements. The frame (3) is provided with the network (10) on its one side only. In the frame (3) there are performed first partitions (12) for double-sided discharge of fine material that are placed in the region above second partitions (12') performed in the box (1). The frame (3) is provided with at least one transversal partition (13) for making additional cleaning fields with corresponding cleaning elements. The cleaning fields are preferably of square form. The frame (3) height is less than the box (1) height.</p> |
