Safety and efficiency in the steel industry: IoT solutions for sintering and coke processes
In these complex links of steel production in sintering and coking plants, every deviation is a risk: from explosion hazard to quality loss. This article reveals how IoT sensors continuously monitor critical parameters such as temperature, pressure and gas detection - not only preventing failures, but also saving energy and reducing emissions. Discover how predictive maintenance in this heavy industry makes the difference between downtime and maximum output. Curious about practical examples? Read on and see how smart technology makes the plant safer and more sustainable.
Steel production begins with limestone, iron ore, and coal. These raw materials are transported by conveyor belts through the sinter plant and coking plant. In the blast furnace, they are heated to above 2,000°C. From the blast furnace comes hot metal. So it is not yet steel.
Featured IoT sensors for blast furnaces, sinter plant and coking plant
1. Infrared temperature sensors: For measurement around the furnace wall and the molten metal.
In blast furnaces, temperatures are reached above 2,000°C. Sensors around the furnace wall detect hot spots or irregularities in the thermal load. This prevents burn-through of the furnace wall, which can lead to dangerous situations and costly damage.
The temperature of the molten metal determines its chemical composition and processability. Accurate measurement ensures consistency in the hot metal, which is essential for later steps such as refining and casting.
Through near-real-time temperature data, furnaces can be optimally controlled, leading to lower energy consumption. Avoiding overheating saves on fuel costs and extends the life of furnace components.
Early detection of abnormal temperature patterns enables preventive maintenance.
2. Vibration sensors For monitoring conveyors and mechanical drives.
In these plants, raw materials such as iron ore, limestone and coal are moved continuously via conveyors and fans. These often run on transmission belts, which are prone to wear, misalignment and misalignment.
What begins as a minor defect, such as misalignment or material accumulation, can quickly lead to:
Slip of belts
Overheating of motors
Imbalance in fans
Many bearings, shafts and other components are outside the direct view of operators and can be severely damaged by violent vibration patterns. Problems are often not noticed until damage is already present or the plant fails. Vibration sensors provide continuous monitoring, allowing early detection of anomalies. By detecting anomalies early, minor repairs can be made in a timely manner, preventing costly downtime. This directly contributes to higher uptime, lower maintenance costs and prevents lost production.
3. Pressure sensors: For control of gas and air flows.
Gases such as CO, CO₂, NOₓ and dust particles are released during sintering and coke production. A process that also involves gas cleaning-where emission control and environmental legislation is essential!
Pressure sensors help monitor air flows in extraction systems and gas cleaning systems. This is essential to comply with EU regulations around industrial emissions and air quality. Stable pressure in pipes and filters ensures efficient combustion better gas removal. Sensors detect blockages, leaks or pressure loss, which directly affects the operation of furnaces and filters. Overpressure or underpressure in piping can lead to explosion hazards or the release of harmful substances. Pressure sensors provide early warnings so operators can act quickly.
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Jeroen Frantzen
predictive maintenance | iot sensors
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