Daniel Mathew Chapman

US Patent:

62268910, May 8, 2001

Filed:

Jul 11, 2000

Appl. No.:

9/613490

Inventors:

Daniel R. Chapman - Corinth TX

International Classification:

F26B 700

US Classification:

34508

Abstract:

In the present method of drying iron ore pellets, e. g. , magnetite pellets, moisture-containing iron ore pellets are formed into a bed comprising a multiplicity of the pellets. A current of drying gas is forced upwardly through the bed of pellets to at least partially dry some of the pellets. Radiant heat reflectors above the bed reflect heat back onto the pellets with air jets simultaneously directing air downwardly onto the top surface of the bed. Air is forced between the reflectors are placed and onto the bed to, especially below the firebrick wall between the end of the updraft drying zone and the downdraft drying zone. Water is applied to the hot pellets to produce steam as well as water vapor which is added to a current of air to produce a stream of hot, humid air that is passed through the bed to improve pellet characteristics and recover waste heat. Air supplied at a selected point is cut off responsive to the presence of a blow hole in the bed so as to improve drying efficiency and improve uniformity of drying.

Address:

1825 Northwest Pkwy, Azle, TX 76020

VIN:

1FTPW12V07KB67100

Make:

FORD

Model:

F-150

Year:

2007