Froth sumps collect and handle aerated bitumen froth that separates during oil sands extraction. The mixture contains bitumen, water, air, and fine solids — a challenging fluid that is both abrasive and highly variable in consistency.

Challenges:
Froth slurries cause conventional pumps to lose prime due to entrained air and fluctuating density. The combination of abrasiveness and gas content leads to cavitation, vibration, and reduced efficiency. Maintaining continuous operation in froth-handling systems is a major reliability challenge.

 Solution:
Hevvy/Toyo’s recessed impeller and tank-style pump designs are ideal for froth applications. Their large, open passages reduce air binding and allow smooth handling of aerated slurries. Optional rubber or high-chrome linings extend wear life, while the ability to operate in partially flooded or fluctuating conditions ensures continuous, stable performance in froth sumps.