Probe for taking gas samples and heat measurements in a shaft furnace
AssigneePaul Wurth S.A.
InventorsPierre Mailliet, Emile Lonardi, Georges Wies
Life of this patent
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Abstract
The probe comprises a support in the form of a sheath, a series of internal pipes, retained by spacers and connecting orifices distributed along the sheath to a device for measuring and for receiving the gas samples outside the furnace, and thermocouples arranged at the level of the said orifices. In order to enable the pipes to be replaced without disassembly of the probe, the said orifices are situated in steps provided in the sheath, while the internal pipes, for taking gas samples and heat measurements are all individual, straight and exchangeable elements housed in straight support and protection channels, each traversing the sheath from the outside as far as the respective step.
Claims6
A probe for taking gas samples and heat measurements above a charging surface of a shaft furnace, said shaft . furnace including a furnace wall, comprising:
- outer sheath means for inserting into said furnace through an opening in said furnace wall, said sheath means extending longitudinally from a first end, said first end to be mounted outside of said furnace wall, to a second end said second end to be positioned within said furnace and above said charging surface, and said sheath means exhibiting a cross sectional area which stepwise decreases with distance from the first end to the second end;
- a plurality of transverse spacers longitudinally spaced apart within the sheath means, each of said spacers exhibiting an exposed portion, said exposed portions defining a plurality of longitudinally spaced apart transverse steps for narrowing the sheath means and said exposed portions defining a plurality of orifices therethrough,
- a plurality of channels supported within said sheath means, each of said channels extending longitudinally from the first end of the sheath means to a respective one of the transverse steps;
- a plurality of longitudinally extending internal pipes, each of said pipes being removably secured within a respective one of the channels to connect a respective one of said orifices to a device for measuring and receiving gas samples;
- and
- a plurality of thermocouples, each removably received within a respective one of said channels for measuring temperature at a respective one of said steps.
Dependencies are inferred from the claim text.