ETX™
for dryers, automatically reclosing.
Self reclosing and reusable explosion door for drying systems.
Drying processes in the food industry are often associated with the generation of explosive atmospheres. The applicaton of explosion protective systems is imperative, in particular due to the high probability-occurrence of glowing embers and hot surfaces. As a result of the function-related elongated design of ring dryers, post-explosion-fires in ring dryers are boosted by the so-called chimney effect, if the pressure relief devices remain open after an explosion. The REMBE® explosion door ETX™ prevents post-explosion-fires by self-reclosing after the explosion pressure has been relieved, thus preventing the supply of oxygen to the air. After successful relief the ETX™ will remain undamaged and will be ready for the next usage.
Application
- Ring dryer: An optimal and safe pressure relief is achieved by attaching the ETX™ to the deflection hood or ring duct.
- Cyclone (multistage): The most effective arrangement of explosion vents for inertial separators is directly above the immersion pipe.
- Bag filter: In the case of bag filters, special care must be taken to ensure that the venting devices are placed below the filter elements. This ensures that filter elements do not block the vent areas.
Mechanism
The explosion door ETX™ is based on the air cushion principle. In the event of an explosion, the hinged lid will open extremely quickly, and will then be stopped by the integrated baffle plate. The integrated air cushion dampens the transmission of the kinetic energy to the rigid parts of the ETX™, and ensures that the lid of the ETX™ returns to its original, closed normal position after the explosion pressure has been relieved.
Advantages
- Prevents chimney-effect related post-explosion-fires.
- Self-reclosing.
- Reusable.
- High venting efficiency.
- Trace heating to maintain a snow and ice freeness (optional).
Technical data
Product parameters
Housing | 1.4404 |
Gasket | Silicon with FDA approval |
Burst pressure | variable |
Standard vacuum resistance | 2500 mm WC |
Dust explosion class | St1 and St2 |
Total weight | 48 kg |
Door lid weight | 9 kg |
Inner opening of the door body | 500 x 800 mm |
Geometric vent area: A | 0,4 m2 |
Venting efficiency | KSt | 0-88 | 89-145 | 146-300 |
bar*m*s-1 | EF | 93% | 95% | 100% |
Effective vent area: AW | AW | 0,37m2 | 0,38m2 | 0,4m2 |
Relief direction | horizontal and vertical |
Maximum reduced explosion pressure | max. 2,35 bar g |
KG-Value | KG-Wert: ≤ 100 bar*m*s-1 |
Gas explosion class | IIA |
Static burst pressure Pstat | 0,05 bar g |
Ambient temperature | -40 °C bis +50 °C temperatures below 0 °C only permitted with heating |
Process temperature | +160 °C at max. +50 °C ambient temperature |
Our specialists will gladly consult you personally in case of deviating operating conditions.
Applications + Industries
- recycling
- silo
- spray dryers
Downloads
Certifications
Certified in
accordance with
EN 14797
Autonomous safety device
with trace heating, certified and type-examined
according to ATEX 2014/34/EU
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The dimensions shown may differ from those of the actual product.
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Your contact person
I will be happy to advise you about the most suitable Protection systems for your plant. Individually, in detail and taking all relevant parameters into account.
Till Möhle | Project and Sales Engineer
