SEPARATING PARTICULATE-CONTAINING GAS FLOW INTO PARTICULATE AND NON-PARTICULATE FLOW PORTIONS

• Main Authors: SMITH, T. PAUL, MAC RAE, ROBERT T, BURKE, DAVID J, BALDWIN, TOM A, BUDD, ALLAN L
• Format: Patent
• Language: English; French; German
• Published: 27.04.2011
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; SEPARATION; TESTING; TRANSPORTING

In accordance with one embodiment of the present invention, an apparatus for separating a particulate-containing gas flow into particulate and substantially non-particulate flow portions is provided. The apparatus comprises a sample gas inlet, a radial separating ring, a separation draw, a separated gas outlet, a bypass eductor, and a bypass gas outlet. The radial separating ring comprises a separating ring gap defined between an inlet ring orifice and an outlet ring orifice, and is positioned such that a sample gas flow moving downstream from the sample gas inlet through the bypass eductor to the bypass gas outlet passes across the separating ring gap. The radial separating ring is configured such that the inlet ring orifice and the outlet ring orifice are relatively large, in relation to the size of the separating ring gap, and are positioned in close proximity to each other along the direction of the sample gas flow. The separation draw is configured to permit a substantially non-particulate portion of a sample gas flow moving across the separating ring gap to be drawn from the radial separating ring to the separated gas outlet.