stirred tank impeller 3d model

Technical engineering diagram, side cutaway view of a stirred tank bioreactor with conical bottom (60 degrees). A vertical central shaft with a pitched-blade axial impeller is shown from the side, not front view. The impeller consists of 3 short flat blades welded to the shaft, angled downward, used in biochemical reactors, NOT an air fan. The blades are thick, rigid, industrial metal plates, no curved fan blades, no radial symmetry like a fan. Flat vertical wall baffles attached to the inner tank wall are shown. Black and white technical schematic, no perspective, no 3D rendering, similar to a textbook bioprocess engineering diagram.