The hot blast stove heats the air before it is fired through the blast main into the furnace. Optimisation balances the best performance against the lifespan of the stove. Monitoring the temperature of the refractories safeguards against damage, while maximising the production rate.
Monitoring the refractory temperature is a challenge, as the hostile conditions of the stove can damage measurement devices. However, it is essential to obtain such a measurement if process optimisation is to be achieved. A fibre-optic thermometer can be used to remove the instrument from the process conditions.
By supporting optimisation of the process, the
SPOT+ R100 FO helps protect the stove interior from overly high temperatures. It also provides the readings needed for efficient stove operation, while ensuring the sensitive electronics of the thermometer are located away from hostile conditions.
APPLICATION NOTE
BLAST FURNACE,STOVE DOME AND HOT BLAST MAIN
The quality and composition of iron produced in the blast furnace is directly related to the hearth temperature. This, in turn, is dependent on the temperature of the hot blast delivered from the blast furnace stoves. To maximise the efficiency of the stoves, they are operated at high temperatures, close to the safe working limit of the refractories. This makes it critical to carefully monitor the stove temperature.
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