Multi-spin mixer for particulate coal supply conduit

Details Multi-spin mixer for particulate coal supply conduit Multi-spin mixer for particulate coal supply conduit

2005-05-31

2005-05-31

Rinehart, Kenneth (Department: 3749)

Furnaces

Fuel feeders

Blower

C110S309000, C110S310000, C110S10400A, C110S1010CD

Reexamination Certificate

active

06899041

ABSTRACT:
A mixer having two or more concentric cylindrical flow channels is placed in a supply conduit for a combustion chamber to mix airborne particulate coal prior to entering a manifold supplying four parallel branch conduits. Vanes are mounted in the mixer channels for imparting spin to the coal/air flow. The spin direction in one channel is opposite the spin direction of the adjacent channels(s). A turbulence-producing transition section is located downstream of the mixer.

REFERENCES:
patent: 1165869 (1915-12-01), Fraser
patent: 1315719 (1919-09-01), Grindle
patent: 2623700 (1952-12-01), Scherer
patent: 5685240 (1997-11-01), Briggs et al.
patent: 5873156 (1999-02-01), Wark
patent: 6055914 (2000-05-01), Wark
patent: 6186079 (2001-02-01), Wark et al.
patent: 6234090 (2001-05-01), Wark et al.
patent: 6257415 (2001-07-01), Wark

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