Conclusion
In this work the influences of the modified geometry of screw conveyor on the premixing process were analyzed. The main idea was to improve mixing quality and homogeneity of the mixture
before entering the main mixer, by inserting additional helix or
helical strips, on the periphery of the screw helix, in the same or
in the opposite direction of material flow. The mixing process
depends on the geometry of the screw helix and the trajectory of
the particles. The particle trajectory can be significantly prolonged
by inserting additional elements to the helix of screw transporter.
Particle transport time remains almost constant, but the particle
velocity is significantly increased, and the probability of mixing
of two or more particles is also enhanced, in respect to distance
traveled is much longer