Experts in fire protection

Fire damage to dryers

A fire may have several causes. The materials and build-ups in a dryer can quickly be ignited by overheating, friction or machine break. Sparks or glowing embers from upstream production areas can end up in the dryer via the material feed point and act as the source of a re there. Operators therefore need a solution which detects res quickly and ghts them speci cally on the dryer and related extraction devices. In addition, a protection concept which allows for coordinated re protection for interlinking production areas would be desirable. Minimax has the right solution: DryerProtect

Advantages at a glance 

  • Holistic solution across all processes and for all areas by a single provider 
  • A comprehensive solution prevents fire from spreading to adjacent areas 
  • All fire protections systems are integrated into one network through a common fire detection and extinguishing control panel 
  • Firefighting in the early stages of an emerging fire enables minor fire and water damage and brief business interruptions 
  • Low costs for water supply and pipe network installation 
  • Ideal for retrofitting

Structure 

DryerProtect combines re detection, water mist and spark extinguishing technology
to form a holistic solution. This combination provides re protection which is tailored individually to the requirements of the various protection zones.

1
Jockey pump
2
Storage tank
3
Automatic water make-up
4
Town water connection
5
Pump control cabinet
6
Fire detection and ex- tinguishing control panel
7
Deluge valve set
8
Main pump
9
Pressure accumulator
10
Fire detectors
11
ProCon impulse nozzles
12
Automatic extinguishing unit for spark extinguishing
13
Deluge system for filter protection
14
Sprinkler system for protection of buildings
  1. Jockey pump
  2. Storage tank
  3. Automatic water make-up
  4. Town water connection
  5. Pump control cabinet
  6. Fire detection and ex- tinguishing control panel
  7. Deluge valve set
  8. Main pump
  9. Pressure accumulator
  10. Fire detectors
  11. ProCon impulse nozzles
  12. Automatic extinguishing unit for spark extinguishing
  13. Deluge system for filter protection
  14. Sprinkler system for protection of buildings

Function 

Für den Brandschutz von Trocknern selbst bieten Minifog ProCon Feinsprüh-Löschanlagen eine besonders effiziente Brandbekämpfung. Durch Minifog ProCon Löschdüsen wird das Löschwasser fein versprüht und die Systeme kommen mit bis zu 70 Prozent weniger Löschwasser aus – verglichen mit klassischen Sprühwasser- Löschanlagen. In Absaug- und Transporteinrichtungen erkennen Funkenlöschanlagen Zündinitiale und erzeugen über eine Löschautomatik blitzschnell einen Wasserschleier, um Funken oder glühende Teilchen zu löschen. In den Schutzbereichen werden UniVario Flammenmelder und Funkenmelder eingesetzt. Beide Meldertypen ermöglichen eine frühzeitige Branderkennung und damit ein schnelles Handeln. Darüber hinaus erfolgt über die Brandmelderzentrale die elektrische Auslösung der Minifog ProCon und Funkenlöschanlagen.

Minifog ProCon

Fire detection and extinguishing with Minifog ProCon

Fire detection is carried out with the aid of the Minifog ProCon fine spray extinguishing system, which is divided into one or more extinguishing areas with corresponding area subdivision, water supply and fire detection and extinguishing control technology. The dryers are now extinguished by Minifog ProCon fine spray extinguishing systems, which operate on a low-pressure basis and spray the extinguishing water particularly finely over the defined protected area. 

Spark detector

Picture of Spark detector

Sparks or glowing embers in the exhaust- and conveyor systems of a dryer must be detected and extinguished quickly. Spark extinguishing systems are the suitable choice for these requirements. Detection is provided by spark detectors of the FUX3001 series. These detectors have a detection spectrum that is tailored specically for the detection of sparks or hot parts.If an FUX3001 spark detector detects sparks or glowing embers, the spark detector will activate a high-speed solenoid valve within milliseconds via the re detection control panel and will re- lease extinguishing water through the at spray nozzles.

FMZ 5000

FMZ 5000 re detection and extinguishing control panel

The FMZ 5000 re detection and extinguishing control panel is responsible for controlling the re event. If ame detectors of the Minifog ProCon water mist system or spark detectors of the spark extinguishing system detect a re, they transmit a signal to the re detection control panel. It activates the affected extinguishing zone and triggers the extinguishing action and simultaneously releases an acoustic and optical alarm. In addition, potential-free contacts are available at the re detection and extinguishing control panel to switch off the machine controls in the event of a fault or fire.

Applications

DryerProtect enables reliable fire protection in the production hall where the dryers are installed.