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| Industry | : Iron and Steel | | Product | : Zirconia Oxygen Analyzer |
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Air Leak Detection in Sintering Furnaces to Enhance Efficiency and Product Quality
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In sintering furnaces, periodic equipment maintenance has
proven to be the most effective way to prevent air leaks. While
cost reduction is a concern, energy loss from air leaks is also an
issue. Air leak detection is performed so that equipment can be
repaired in a timely manner or some other appropriate measure
be taken.
To detect air leaks, an oxygen analyzer is used. The ZR22/ZR402
Direct In-Situ Zirconia Oxygen Analyzer has been well received
due to its good response speed, stability, and maintainability.
It has been confirmed that the ZR22/ZR402 can be used in DL
type sintering furnaces under harsh conditions that include
large quantities of dust, high humidity, and a pressure of
approximately −5 kPa.
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Saves energy and improves the efficiency of sintering
furnaces, thereby maintaining high quality |
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Ensures stable air leak detection |
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Reduces operating costs |
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A sintering furnace mixes powdered ore with auxiliary materials such as powdered coke and sinters them to make lump ore, which
is used as a raw material in blast furnaces. Since modern blast furnaces are large and require sophisticated and efficient operation,
stringent control of the quality (lump size) of the sintered ore is essential. Air leakage detection is of paramount importance not only
because it saves energy but also because it ensures the proper operation that produces high quality sintered ore through proper
operation. |
| Field Data |
| Process conditions |
| Measurement point: |
Wind box |
| Temperature: |
200°C or less |
| Pressure: |
−5 to 0 kPa |
| Composition: |
CO2: approx. 10%; CO: approx. 2%;
O2: 8 to 16%; N2: approx. 76%,
SO2: approx. 600 ppm |
| Humidity: |
4 to 17% (with water droplets) |
| Dust: |
1 to 5 g/Nm3 (sintered powder/lumps:
approx. 30 mm in diameter) |
| Flow rate: |
Approx. 2 to 5 m/s |
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