Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Granulation and coating by improved method of heat removal
T980005 Granulation and coating by improved method of heat removal
Patent Drawings:Drawing: T980005-2    Drawing: T980005-3    
« 1 »

(2 images)

Inventor: Shirley, Jr.
Date Issued: March 6, 1979
Application: 05/850,588
Filed: November 11, 1977
Inventors: Shirley, Jr.; Arthur R. (Florence, AL)
Assignee:
Primary Examiner:
Assistant Examiner:
Attorney Or Agent:
U.S. Class: 264/14; 264/7
Field Of Search:
International Class:
U.S Patent Documents:
Foreign Patent Documents:
Other References:









Abstract: an improved process for the granulation or coating of hygroscopic or nonhygroscopic materials where melt is sprayed onto cascading granules of common or uncommon substrate in an enclosed vessel such as a rotary drum preferably with lifting flights which provide maximum mixing of the granules and the atmosphere enclosed in the unit and where heat given off by solidification of the melt is absorbed by evaporation of water which is atomized as an extremely fine mist into areas of the vessel which are not subtended by falling granules. Evaporation is effected without impingement of the mist on the granules or vessel internals. Air for evaporation is pulled through the vessel concurrent with the flow of granules and its moisture content is regulated below the critical humidity of the granules throughout the vessel. Some recycle of undersize granules discharged from the vessel is maintained for size control; however, examples show the recycle rate decreased by 87 percent over recycle cooled processes as 73 percent of the heat evolved is removed by evaporation of water mist. An equation is developed which mathematically represents the thermodynamics of the process and specific values are presented for variables when granulating sulfur or urea.
Claim:
Description:
 
 
  Recently Added Patents
Imaging lens
Communication system, authentication device, control server, communication method, and program
Minimizing mismatch during compensation
Matching engine for comparing data feeds with user profile criteria
Method and system for using personal devices for authentication and service access at service outlets
Method of improving sensitivity and interference rejection in wireless receivers
Transmission terminal, transmission system, transmission method, and recording medium storing transmission control program
  Randomly Featured Patents
Methods, systems and apparatus relating to electrochemical machining
Prevention of Bt resistance development
Electron microscope
Riser cart
Hot air welding torch with concentric tubular members providing cooling air flow
Speaker
Recording disc compositions comprising polymers of monovinyl-substituted hydrocarbons, conductive carbon black and lubricants
Method of forming a membrane, especially a latex membrane, having a biocide barrier
Lever for recording unit of ink jet printer
Money fund banking system