Jodie Dean Mcdaniel

US Patent:

6425933, Jul 30, 2002

Filed:

May 11, 1999

Appl. No.:

09/309540

Inventors:

Jodie D. McDaniel - Edmond OK
Terry Scott Humphry - Plano TX

Assignee:

William R. Austin - Shawnee OK

International Classification:

C05F 300

US Classification:

71 21, 71 11, 71 6404, 241 39, 241 43, 241 5, 241 29

Abstract:

Organic fertilizer produced from raw manure, and systems and methods related to the production thereof. A high-velocity air stream is injected into at least one substantially-closed chamber, where it interacts with a supply of raw manure; the raw manure can be bovine or other animal waste products. The high-velocity air stream pulverizes and dries the raw manure, whereby an end product having a moisture content substantially less than the initial moisture content and a live bacteria content substantially equal to the initial live bacteria content of the raw manure is produced. In a preferred embodiment, a cyclonic comminution apparatus is used to pulverize and dry the raw manure; alternatively, a first cyclonic comminution apparatus can be used to substantially pulverize the raw manure and a second cyclonic comminution apparatus can be used to substantially dry the raw manure. A complete system further includes a roll compactor to form briquets from the pulverized and dried raw manure, and a grinder to reduce the briquets to organic fertilizer pellets of a desired size. The system may also include a screening apparatus to separate ones of the organic fertilizer pellets having a size less than a desired size, and an apparatus for bagging the organic fertilizer pellets.