Heating – Work chamber having heating means – Crucible or pot heating furnace
Patent
1985-09-20
1986-11-11
Camby, John J.
Heating
Work chamber having heating means
Crucible or pot heating furnace
73 23, 422 78, F27B 1400, G01N 3100, G01N 3112
Patent
active
046220097
ABSTRACT:
The specification discloses an analyzer for determining the carbon, hydrogen, and nitrogen content of an organic material. The analyzer includes a vertically oriented, U-shaped furnace including a combustion chamber containing a crucible in which the sample is combusted into constituent gases and a reagent chamber containing a reagent through which the constituent gases must pass. A lance extends into the combustion chamber to guide the sample into the crucible and to direct oxygen onto the sample combusting in the crucible. The analyzer further includes an equilibration vessel and means for conveying the constituent gases to the vessel and past CO.sub.2 and H.sub.2 O infrared cells to monitor the products of combustion. Means are provided for conveying the equilibrated gases past the infrared cells to obtain readings relating to carbon and hydrogen content. A doser doses an aliquot of the equilibrated gas into a nitrogen measurement apparatus to obtain a reading relating to nitrogen content.
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Camby John J.
Leco Corporation
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