AUTOMATIC FIRE-EXTINGUISHING SYSTEM FOR BELT CONVEYORS

Характеристики:

  • Operating water pressure: 0,35-2,4 МПа.
  • Maximum water pressure: 4 МПа.
  • Ambient temperature: +2… +35 ºС.
  • Temperature of sprinkler thermal lock breaking: 68±3 ºС.
  • The response of the system actuation from the moment the sprinkler is triggered until the appearance of water from the nozzles on the fire extinguishing line: не более 5 сек.
  • Interval between screw-type nozzles: 3 м
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SPECIFICATION:

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AUTOMATIC FIRE-EXTINGUISHING SYSTEM FOR BELT CONVEYORS This system protects drums of drive heads, tension stations and linear sections of belt conveyors against fire. Extinguishing is carried out by automatic or manual activation of the start valve and water supply from the fire water-spraying pipeline to the fire-extinguishing system. The system is automatically activated when the ambient temperature rises above 68 ºС.

The temperature increase up to 68 ºС causes the sprinkler thermal lock (capsule) to break, which automatically activates the start valve to supply water to sprinklers.

The system may be used for both underground and surface mining operations.

Distinctive features:

— elements of the activating and fire extinguishing lines are connected through quick-disconnect couplings which significantly saves time and facilitates installation and dismantling;

— the release device is fitted with a reinforced diaphragm rated for a pressure of 4 MPa;

— at the customer’s request, the system is completed with a full bore ball valve;

— at the customer’s request, the system is completed with a heat-resistant sleeve for connecting to the valve of the fire water-spraying pipeline (when ordering, the length of the sleeve and the connection size should be specified).

Type of the system depends on the length of the conveyor part to be protected and the number of drums in this area. If necessary, the equipment of the system can be changed based on the conveyor characteristic features.