A SECTOR ELEMENT OF A DISC FILTER

1. A sector element of a disc filter, comprising at least a sector portion (15) with a substantially planar opposite sides (6), and edges (12) and an end (13) connecting the sides (6), and adapted to form together a hollow space, each side (6) being substantially triangular and comprising a plurality of openings (7), and a neck portion (14), where the upper part is connected to the sector portion (15) and the lower part comprises a mouth portion (14) that can be connected to a frame part (4) of the disc filter (1), the neck portion (14) comprising a flow channel (16), via which the hollow interior of the sector portion (15) can be connected to the frame part (4), characterized in that the edges (12) of the sector portion (15) form an angle of substantially 30 degree , and the ratio of the area (AS) of one side surface (6) of the sector portion (15) to the inner cross-sectional area (AK) of the flow channel (16) over the mouth portion (20) is 105 or less. 2. A sector element according to claim 1, characterized in that the sector element (5) has a height (L) extending from the end (13) of the sector portion (15) to the bottom of the neck portion (14), and that the ratio of the height (L) of the sector element (5) to the inner cross-sectional area (AK) of the mouth portion (20) is 270 (1m) or less. 3. A sector element according to claim 1 or 2, characterized in that the sector portion (15) and the neck portion (14) are separate components that are detachably connectable together. 4. A sector element according to claim 3, characterized in that the lower part of the sector portion (15) is provided with a dent (17), and the neck portion (14) correspondingly comprises an expanded section (18) corresponding to the of the flow channel (16). 5. A neck portion to be connected to a sector portion (15) of a sector element (5) in a disc filter (1), the sector portion (15) comprising side surfaces (6) with an area (AS), the neck portion (14) comprising a mouth portion (20) that is connectable to a frame part (4) of the disc filter (1), and a flow channel (16) for connecting together the sector portion (15) and the frame part (4), characterized in that the flow channel (16) of the neck portion (14) is designed such that the ratio of the area (AS) of one side surface (6) of the sector portion (15) to the inner cross-sectional area (AK) of the flow channel (16) over the mouth portion is 105 or less. Изобретение относится к секторному элементу дискового фильтра и к горловинн