Explosion Safety for spray dryers

Spray dryers in the food, chemical and pharmaceutical industries have a significant explosion potential: typically, there is a constant atmosphere of stirred-up, combustible dust along with a high potential for an ignition source.  Spray dryers, however, should not be considered as a standalone design element, but must be evaluated as part of a cohesive complex system.

The explosion-related design of spray dryers is best defined by VDI 2263 part 7, which allows for a reduction of specific characteristics as long as certain process conditions are met. Please contact one of our experts who will both help you determine whether your system meets these requirements and who will recommend the most cost-effective protection for your process.

The most frequent sources of combustion in spray dryers are glowing embers, damage to rotary nozzles, hot bearings or sparks due to an imbalance.

The best protection measures for your spray drying process will be determined by the dryer strength, the volume of the spray dryer to be protected and its respective installation site. For spray dryers that are  located outdoors, or near an external wall, or are designed to be lower in strength, a conventional explosion safety system with the EGV explosion vent will be suitable. For hygienic applications, we can offer you an EHEDG certified EGV HYP explosion vent or the Q-Rohr® flameless venting device with the ERO hygienic explosion vent.  

Your advantages

  • No cross-contamination
  • Absolute leak-tightness
  • ...

The overall picture counts:

The protection of individual system components is only as good as the protection of the entire system. To insure you have a safe and economical Explosion Safety plan, your total system must be examined and protected.

Pay particular attention that there are sufficient isolation devices.  Also, guard against “over engineering”.

We offer you comprehensive protection plans and on-site consulting, so you can implement organizational measures to achieve a greater degree of safety.

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