Combustion system

Details Combustion system Combustion system

1978-11-09

1981-08-04

Turk, Arnold

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

422102, G01N 3112

Patent

active

042821835

ABSTRACT:
A combustion system includes a cylindrical horizontally extending ceramic combustion tube positioned in a furnace. The combustion tube is enclosed at one end and open at the opposite end for receiving a combustion boat carrying a sample to be combusted for subsequent analysis. The tube also receives a support block loosely positioned along the bottom of the tube and contacting the enclosed end for centering the combustion boat and for supporting one end of a sample withdrawal tube with an open end extending in the space surrounding the combustion boat and having an opposite end extending from the combustion tube. A lance tube also extends into the combustion tube for directing the flow of an oxidizing gas such as oxygen into the combustion boat to facilitate oxidation of a sample. The open end of the combustion tube is effectively sealed by a curtain of gas supplied by a flood tube having a plurality of longitudinally and angularly spaced slots and supplied with a suitable gas for blocking the open end of the tube from admission of atmospheric contaminants and preventing the escape of gasses from the combusted sample.

REFERENCES:
patent: 1303980 (1919-05-01), Sperr, Jr.
patent: 2753246 (1956-07-01), Shields et al.
patent: 3374064 (1968-03-01), Kolsto
patent: 3694157 (1972-09-01), Koch et al.
patent: 3734693 (1973-05-01), Petcoff
patent: 3957441 (1976-05-01), Baba

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