6.1. Mixing Process

Try these first

1. 1.

   What is the primary function of a reversible drum mixer?

   Hint

   Think about how it mixes and how it discharges.

2. 2.

   Name one advantage of power mixers.

   Hint

   Consider their speed and type of materials they handle.

3. 3.

   What type of mixer is known for its high-speed paddle mixing?

   • Free fall mixer
   • Power mixer
   • Reversible drum mixer

   Hint

   Think about which mixer relies on rotation.

4. 4.

   True or False: Pan mixers do not have blades that prevent sticking.

   • True
   • False

   Hint

   Recall the functions of different types of mixers.

5. 5.

   Evaluate the efficiency gain when switching from a free fall mixer with a productivity of 60 m³/hour to a power mixer at 75 m³/hour. What factors could contribute to this difference?

   Hint

   Reflect on how mixing methods impact productivity.

6. 6.

   Design a small batch process using a pan mixer for a project requiring 30 m³ of concrete daily. What should be considered about mixing times and materials?

   Hint

   Plan for daily output and operational limits.