Coal Mill – CO Gas Analysing System

Posted at: September 7, 2011

CO Gas Analysing System The accumulation of coal particles in pulverising mills can, under certain circumstances, lead to self-heat and…

CO Gas Analysing System

The accumulation of coal particles in pulverising mills can, under certain circumstances, lead to self-heat and spontaneous combustion.

Coal Mill

Coal Mill

One extensively used method of early detection of this situation, is by monitoring levels of carbon monoxide (CO).

Any such system must be capable of detecting CO in the mill whether the mill is idle or in operation and must do so with absolute integrity, for long periods and with minimal maintenance.

Because of the hostile environment and dust-laden nature of the gas, conventional extractive systems are generally inadequate in conditioning and transporting the gas prior to analysis. However, the CODEL system requires minimal pre-conditioning through a sintered filter and transportation is via a sample line and pump.

  • infrared gas analyser with stainless steel measurement chamber
  • low maintenance operation
  • high dust loading operation
  • auto zero
  • remote data display (optional), data in ppm

Sample gas is carried to a measurement chamber equipped with a compact infrared gas analyser; the measurement chamber is trace-heated to avoid corrosive condensation. Integral valves provide automatic calibration and filter cleaning routines.

The CODEL mill fire prevention system incorporates a rugged, industrial-quality analyser, close-coupled to a dedicated point-of-analysis, to provide measurement confidence in this demanding application.