Pipe used in separation device e.g. cyclone separator of gas solid suspension, has free-form surface formed by contiguous material blank with several adjacent divided contiguous triangles

摘要

The pipe (2) has several curved boundary surfaces. One of boundary surfaces is a free-form surface (4a) formed by contiguous material blank with several adjacent divided contiguous triangles. The connecting lines of two triangles are canted. The connecting lines of the triangles, in one outer boundary edge are made to intersect. An independent claim is included for separation device for gas solid suspension.