US 12,233,427 B2
Reject chamber of a centrifugal cleaner and a centrifugal cleaner
Antti Nykänen, Kotka (FI); Miro Partty, Kotka (FI); and Jason Huff, Muncy, PA (US)
Assigned to ANDRITZ OY, Helsinki (FI)
Appl. No. 17/427,462
Filed by ANDRITZ OY, Helsinki (FI)
PCT Filed Jan. 30, 2020, PCT No. PCT/FI2020/050051
§ 371(c)(1), (2) Date Jul. 30, 2021,
PCT Pub. No. WO2020/157383, PCT Pub. Date Aug. 6, 2020.
Claims priority of provisional application 62/799,144, filed on Jan. 31, 2019.
Claims priority of application No. 20195354 (FI), filed on May 2, 2019.
Prior Publication US 2022/0126307 A1, Apr. 28, 2022
Int. Cl. B04C 5/18 (2006.01); B04C 5/23 (2006.01)
CPC B04C 5/18 (2013.01) [B04C 5/23 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A reject chamber assembly configured to releasably attached to a centrifugal cleaner, the reject chamber assembly comprising:
a reject chamber below a lower region of an inverted cone of the centrifugal cleaner and the reject chamber is configured to receive rejects from a flow moving through the inverted cone;
a dilution arrangement at a center of the reject chamber, wherein the dilution arrangement includes at least one dilution nozzle below the inverted cone and the at least one dilution nozzle is configured to discharge dilution fluid directly into the reject chamber; and
a reject outlet at a bottom of the reject chamber;
wherein the at least one dilution nozzle points outwards of the dilution arrangement and is configured to discharge a crossing outward flow of a dilution fluid directly into and across an annular space around the dilution arrangement and in the reject chamber, wherein the discharge from the at least one dilution nozzle slows circulating motion of fluid flowing down from the inverted cone of the centrifugal cleaner to the reject chamber.