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The HTE horizontal film evaporator consists of the following components:
- A cylindrical evaporation chamber mounted horizontally, usually heated by steam or thermal oil;
- A rotor rotating at high speed, which distributes the product onto the walls of the evaporation chamber and at the same time creates a strong vortex in the product;
- A fabricator to distribute the material evenly on the walls of the evaporation chamber;
- Two double-ended mechanical seals.
Advantages:
The internal diameter of the horizontal film evaporator is larger than that of a vertical film evaporator of the same size, which is a disadvantage because it is more expensive to build. However, this reduces the pressure drop of the vapour and thus improves the process performance;
Horizontal film evaporators can form a very stable liquid film even at very high concentration rates, which is much better than vertical film evaporators;
The residence time of horizontal evaporators is longer than that of vertical evaporators, and if the evaporator is used in a reactor or dryer, the longer residence time can be an advantage.
| HTE Horizontal Thin Film Evaporator | |||||
| Model | Heat Exchange Area | A | B | C | D |
| HTE 105 | 0.05 | 105 | 380 | 1000 | 400 |
| HTE 270 | 0.40 | 270 | 840 | 1560 | 900 |
| HTE 430 | 1.20 | 430 | 1070 | 2300 | 1400 |
| HTE 550 | 2.40 | 550 | 1280 | 3000 | 2000 |
| HTE 750 | 4.50 | 750 | 1520 | 3900 | 2500 |
| HTE 980 | 6.80 | 980 | 1970 | 5150 | 3000 |
| HTE 1230 | 11.50 | 1230 | 2390 | 6500 | 4000 |
| HTE 1230/15 | 15.00 | 1230 | 2390 | 7500 | 5000 |
