What matters in the process
When viscosity increases, drainage or settling can become slower under otherwise comparable conditions. However, heating is not a universal solution: crystals may dissolve, the product may degrade, seals may be affected or solvent hazards may change. Cooling can also create crystallization inside transfer lines or alter cake structure. The tested condition should represent the expected machine inlet, not merely the storage tank.
A practical example
An illustrative crystallization slurry may reach the centrifuge warmer than the laboratory sample. If the product dissolves more readily in warm wash liquid, the apparent recovery and wash demand may differ. Measure temperature at the feed and wash points and account for any phase change during the test.
What to check or specify
- Provide viscosity at relevant temperatures.
- State normal and extreme inlet temperatures.
- Describe solubility, crystallization and degradation risks.
- Confirm material, seal and bearing temperature ratings.
Turn the result into a decision
Include temperature control, insulation or heat-exchange interfaces in the scope where they matter. Ask for performance data at the agreed process condition. Do not extrapolate a catalogue capacity across a large viscosity change without a validated basis.
Equipment context: supplied HUADA English catalogue, PDF pages 9–12, 23–25, 43–50. Numerical examples are illustrative calculations. Application guidance must be confirmed for the actual material and selected equipment.
