Reliable early warning monitoring system for conveying systems
Belt conveyors are the most common means used for the transport of (bulk) material. They are often among the most critical pieces of equipment used in the mining industry, coal fired power plants, automated distribution and warehousing industry as well as manufacturing and production facilities. Despite their importance, there are still significant challenges to guaranteeing their operation, because of an equipment extent that ranges from a few metres to several kilometres. Belt conveyors often operate under very harsh conditions and suffer from severe wear and tear. Nonetheless, in most cases they are vital to the continuing operation of a facility. Furthermore, fires are a common reason for downtime of a belt conveyor, caused by either overheating of belt conveyor components or ignition of the transported goods.
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The ability of SecuriHeat LIST and d-LIST to monitor temperatures at precise points along the conveyor means they not only detect fires at an early stage: they can even offer advanced warning of a heating friction point along the line.
Causes of fires in conveying systems
- Overheating of idlers
- Grinding of the lower (return) belt on construction parts, triggering the ignition of dust deposits underneath or next to the belt conveyor
- Ignition of transported goods
Challenges for temperature monitoring and fire protection for conveying systems
- Outdoor or semi-outdoor environment with a high temperature variation
- High humidity
- Dust and debris
- Additional installations running alongside the belt conveyor, such as piping and cable trays
Key benefits of early warning monitoring system for conveying systems
- Multi-level warning allows for a staged response according to temperature development
- Reliable fire detection at transfer points and along the belt conveyor
- Simple handling due to zones defined in accordance with maintenance process in effect
- Maintenance free sensor cable
