Pulverized Coal Bunker CO/O2 Analysis System


Pulverized coal bunker CO/O2 analyzer is an electrical instrumentation equipment designed for blast furnace coal injection system online continuous detection of gas composition. Gas in the mill is sampled by instrument sampling probe installed on the mill (or mill outlet piping).Under the action of jet pump, sampling gas through probe filtering, heating and cooling (for high temperature occasion), then enter bypass tube (laser analysis module) for analysis measurement.


Linear Error≤±1%F.S.
Span Drift≤±1% F.S./half year
Type Of ProtectionExdIICT6 Gb
Enclosure RatingIP66
Response Time≤10s(T90)
Analog Output2× 4-20mA
Analog Input2×4-20mA
Digital CommunicationsRS485/RS232/GPRS
Working Temp.-20℃~+60℃
Purge Gas 0.3MPa ~ 0.8MPa N2, clean air


  • Using the TDLAS technology to avoid the influence of gaseous water and interferentialgas on CO measurement
  • High stability, long calibration cycle, low maintenance quantity
  • Supportting automatic calibration, automatic blowback
  • No mechanical moving parts, vibration resistance interference


Apply to the coal pulverizing system of hot blast stove exports, ball mill into exports, cyclone export machine, flour bag exports, powder warehouse entry, process gas pipeline, etc.


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