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Coal Storage Temperature Monitoring System

Spontaneous combustion has long been recognized as a fire hazard in coal storage facilities such as coal silos and sheds. These accidents usually begin as “hot spots” generated by oxidation and the poor release of heat deep in the coal silo, eventually resulting in widespread fires. Therefore, it is imperative to monitor “hot spots” within coal silos. Since coal silos are generally very large in volume, the temperature monitoring system involved has to be composed of distributed sensors that are able to cover large areas within the silo. Moreover, the temperature sensors must also be very durable to be able to withstand the stresses of coal loading and unloading.

The Senkox TDS-CS Temperature Monitoring System is specifically designed for temperature monitoring in coal storage facilities. The TDS-CS system is composed of multiple Senkox HSD Linear Hot Spot Detectors and accessories; the HSD Linear Hot Spot Detector includes HSD linear heat sensors and DAQ modules.


System Structure

Technical Advantages

  • Sensors are intrinsically safe, and can be installed in hazardous locations.
  • Durable sensors with extra strength protection made to withstand high abrasion and stress.
  • Sensors are able to withstand high temperature and can be reused repeatedly.
  • Flexible layout able to cover any variety of size and configuration.
  • Low maintenance.
  • Detects the hot spot temperature in real-time.
  • Details the position of any hot spot.
  • Provides rate of temperature change (ROTC).



Sensor HSD Linear heat sensor
Sensor Type TLA, TLB, TLF, TPLA
Working Temperature -40 to 260 degrees C (Sensor)
(Control Panel)
Operating temperature range: -20 to 70 degrees C Relative humidity: 0 to 95%, non-condensing
Protection Degree Sensor: IP68; Control Panel: IP65.
Sensor Channels Up to 24
Communication Interface  RS 485 Port, Modbus/RTU Protocol
Power Supply 12 to 35V DC, 10W max
Hazardous Location Sensor: Class I, Division 1
Control Panel: Class I, Division 2