The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 2003
Filed:
May. 15, 2001
Richard L. Ronning, Overland Park, KS (US);
Robert Kolb, Olathe, KS (US);
Ronning Engineering, Co., Inc., Overland Park, KS (US);
Abstract
A single pass, multiple stage, rotary drum heat exchange dryer ( ) is provided for drying products such as distillers grains and includes a tubular shell ( ) with a moist product inlet ( ), an opposed dried product outlet ( ), and an internal drying chamber ( ). The chamber ( ) includes a convection drying first stage ( ), and conductive drying final curing stage ( ) an intermediate stage ( ); the stage ( ) is subdivided into a plurality of preferably contiguous drying zones ( ). The zones ( ) include individual flighting assemblies ( ) which are of increasing density and present progressively increasing heat transfer ratios. Preferably, one of the initial zones has a heat transfer ratio of from about 1.5-2.5 ft , whereas another of the zones closer to the final stage has a heat transfer of from about 2.75-3.75 ft .