It is impossible to obtain high-quality combined feeds without effective mixers. To improve them, you can use programs that simulate the behavior of bulk materials, but most of them are inaccessible and difficult to master. The use of more accessible software that simulates the process of fluid flow - “Flow Simulation” “SOLIDWORKS 2018” is proposed for assessing the movement of bulk materials. A previously developed design scheme was used, in which the working bodies of the mixer are combined and contain several sections of blades with reasonable geometric parameters for different purposes (transportation and mixing). A model of the scapula has been made. The parameter under study was the installation angle of the mixer blades relative to the shaft of the working element. The criterion for selecting blade installation angles was the presence of a maximum number of flow areas with velocities different from those specified for the overall material flow. As a result of the simulation, flow velocity distributions were obtained at given blade installation angles with a gradation step of flow velocity fields of 0.393 m/s. The limit values for the installation angles of the mixer blade are set from 0° to 60°. This criterion is met by blade installation angles from 45° to 0°. It is shown that the results of modeling the flow around a flat blade with given dimensions generally do not contradict the results of existing studies. Further research will be aimed at assessing the simulation results based on full-scale experiments with subsequent adjustments.