#Product Trends
FPI Solution: Coal Injection Process and Detection of Its Process Gas
FPI Tunable Diode Laser Gas Analyzer
Application Area: Iron & Steel Industry
Process: Coal Injection
Measuring Components: O2, CO
Application Scenario:
Pulverized Coal Injection is the key to optimizing the blast furnace process for high productivity as well as hot metal cost. In this process, the raw coal is fed into the pulverizer along with heated air. As the coal gets crushed, the hot air dries it and blows the usable fine coal powder out, which is transported to coal bunker for storage or directly for use in blast furnace. The exhaust air is then purified by a bag filter.
Critical Control of Process Gas:
A mix of fine coal powder and hot carrying air is inevitably creating carbon monoxide (CO). For the purpose of safety operation requests a continuous monitoring of oxygen(O2) and trace carbon monoxide (CO) in each process of coal pulverization, transfer and storage.
Challenge of Instrumentation:
O2 in the processes rising from 4% to 10%, the warning value, probably takes only 30s. The requirement of real-time response and contaminant resistance disqualifies all sampling systems or probes. Please refer to the illustration 1: O2 concentration change table.
FPI's Solution:
Please refer to the illustration 2: FPI's Solution
High-speed response (down to 1s) of the LGA analyzer highlights its reliability for safety control. The non-contact laser and sensor of the in-situ LGA combined with continuous purge results in virtually maintenance free. Please refer to the illustration 3.
LGA-4100 Laser Gas Analyzer
Based on the Tunable Diode Laser (TDLS) technology, LGA-4000 is a highly reliable laser gas analysis system that monitors various toxic and hazardous substances (HF, NH3, H2S, HCl) from stack emission with high accuracy, strong reliability and is virtually maintenance-free.
LGA-4500 Bypass Tunable Diode Laser Gas Analyzer
LGA-4500 laser gas analyzer is a bypass process gas monitoring instrument based on tunable diode laser absorption spectroscopy (TDL) technology which is suitable for on-line analysis of various high dust and high pressure process gases after bypass treatment.
If any interests in these products, please feel free to visit FPI's official online store: online.fpi-inc.com/.
