For bitumen emulsion, you need a specialized storage tank with mixing and temperature control, since the product tends to separate and lose stability over time. The key requirement is continuous or periodic agitation to keep the emulsion homogeneous.
In practice, tanks are usually equipped with an agitator or circulation pump, as well as temperature and level control systems. For example, GlobeCore’s SBE-type tanks are designed specifically for bitumen emulsion storage and can include mixing systems to maintain product quality during storage .
If the emulsion needs to be stored for longer periods or in variable climates, insulated or heated tanks are recommended to maintain stable viscosity and prevent degradation .
So overall, the best solution is a heated (or insulated) storage tank with an integrated mixing system, and GlobeCore offers such tanks as part of complete bitumen emulsion production and storage lines.

Another important consideration is that bitumen emulsion storage is highly sensitive to time and operating conditions, so the storage tank design should help preserve stability rather than simply hold the product.
In practice, one of the main risks during storage is phase separation (bitumen + water). For this reason, beyond simple mixing, engineers often focus on the following:
• gentle, low-shear agitation, which keeps the emulsion uniform without degrading its structure;
• uniform heat distribution, since local overheating can break the emulsion even if the average temperature is correct;
• tank geometry, with vertical tanks often preferred, because they are easier to maintain and more efficient in operation.
Another useful approach is to design the storage tank as part of a circulation loop, where the product is periodically pumped through external lines and returned to the tank. This improves stability over long storage periods compared to relying only on internal agitators.
Therefore, when selecting a storage tank, it’s worth considering not only insulation and mixing, but also how consistently the tank can maintain stable conditions over time, especially if the emulsion is stored for days or weeks.
For a better understanding of how such storage systems are designed in practice — including heating methods, tank configurations, and integrated mixing solutions — take a look at this article: https://globecore.com/bitumen-production/bitumen-storage-tank/.

You’re exactly right — preserving emulsion stability is about controlling shear, temperature gradients and residence time, not just “stirring.” For long storage periods use a vertical, insulated tank with indirect heating (a heat‑carrier jacket or integrated heat exchanger) to avoid local overheating, a gentle low‑shear agitator (axial/vane type running at slow RPM or intermittent duty) to keep the dispersion uniform without damaging the emulsion structure, and a circulation loop that periodically pumps product through an external line and back to the tank so the whole volume is refreshed and temperature‑equalized. Fit the tank with temperature, level and overflow sensors and a controller to hold temperature within a narrow band (±2–3 °C typical) and prevent overheating or stagnant zones that cause phase separation.

For practical implementation, purpose‑built vertical emulsion tanks (SBE/SMB types) or USB‑4 series tanks are a good match: they combine insulation, integrated heating circuits or heat exchangers, vane agitators optimized for low shear, and instrumentation for level/temperature/overflow. Typical USB‑4 sizes (about 15 m³ and 30 m³ usable) are designed for standalone or integrated sites. When commissioning, set a conservative circulation/turnover schedule (periodic full‑volume circulation rather than continuous high‑shear mixing), verify no hot spots with thermal mapping, and tune agitator speed and circulation flow to maintain homogeneity without increasing droplet coalescence. These measures will substantially reduce the risk of bitumen/water separation during days‑to‑weeks of storage.