Drying
FAQ for Experts. Answers by Experts.
60
How does a crystalliser work?
A look inside the agitator bin – the agitator and lateral stators can be seen clearly
Mo explains specific aspects of drying
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59
Why and when is a crystalliser needed?
A fixed bed crystalliser directs a heated air flow through an agitator bin in a defined process to achieve the necessary degree of crystallisation.
Mo explains why some plastics need to be crystallised before drying
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58
What needs to be taken into consideration during initial or refilling of drying bins?
In the newly filled bin on the left the material is still moist (blue), in the right bin dried material (green) in the bottom of the bin is ready for use. …
57
Avoiding material damage with changing throughputs
Temperature reduction in 3 steps according to throughput
Mo explains specific aspects of drying
Changing throughputs for material drying can have serious consequences for the drying process. …
56
Stable production with automatic dew point regulation
An automatic dew point regulation can protect against damage caused by too much or too little moisture.
Mo explains specific aspects of drying
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55
Can automatic air flow regulation save energy?
Modern drying systems can help to save energy.
Mo explains specific aspects of drying
The comparison of traditional drying systems with more modern versions illustrates many approaches to saving energy. …
54
What are the advantages of automatic air flow regulation?
If a drying bin receives more energy than is carried off (through material extraction), the temperature gradient shifts higher.
Mo explains specific aspects of drying
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53
When is a return air cooler necessary?
With a return air cooler the air can be cooled to a temperature below the critical area before it flows into the desiccant bed.
Mo explains specific aspects of drying
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52
How can re-moisturisation at high air humidity be prevented?
With the help of silos and octabins, re-moisturisation can be avoided
Mo explains specific aspects of drying
The following basic principle applies: …
51
How can molecular sieves be regenerated?
The regeneration can be done in different ways
Mo explains specific aspects of drying
We already described the basic principles of regeneration in Issue 50. …