Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (960 KB bytes)

Title: Evaluation of roll designs on a roll-crusher/ crusher/splitter biomass harvester: test bench results

Author: Ashmore, Colin; Sirois, Donald L.; Stokes, Bryce J.;

Date: 1987

Source: Proceedings of the Southern Forest Biomass Workshop; 1986 June 16-19; Knoxville, TN. Muscle Shoals, AL: Tennessee Valley Authority. p. 113-116.

Publication Series: Miscellaneous Publication

Description: Four different roll designs were evaluated on a test bench roll crusher/splitter to determine feeding and crushing efficiencies. For each design, different gap settings for the primary and secondary rolls were tested at two hydraulic cylinder pressures on the primary crush roll to determine their ability to crush and/or feed tree bolts. Seven different diameter classes (1-7 inches) and two southern species loblolly pine (Pinus taeda) and sweetgum (Liquidambar styraciflua), are used for the tests. The results of the test combinations showed that a l/2-inch primary roll gap and a 500-psi cylinder compression pressure, combined with a l-inch secondary roll gap, allowed the greatest range of material to feed through the system. A roll design with a combination of serrated and smooth-angled bars was the best overall feed roll surface. Splitting of the tree bolts had the greatest effect on increasing rate of wood moisture loss.

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
  • You may send email to pubrequest@fs.fed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

XML: View XML

Citation:


Ashmore, Colin; Sirois, Donald L.; Stokes, Bryce J. 1987. Evaluation of roll designs on a roll-crusher/ crusher/splitter biomass harvester: test bench results. Proceedings of the Southern Forest Biomass Workshop; 1986 June 16-19; Knoxville, TN. Muscle Shoals, AL: Tennessee Valley Authority. p. 113-116.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.