RESEARCH PAPERS: Solid Waste Processing

Large-Scale Rotary Shear Shredder Performance Testing

[+] Author and Article Information
D. B. Spencer, B. E. Bond

Waste Energy Technology Corporation, Bedford, Mass. 01730

J. W. Temple

Waste Energy Technology Corporation, Summerville, S. C.

D. M. Forsythe

Department of Biology, The Citadel, Charleston, S.C.

J. Energy Resour. Technol 107(2), 289-296 (Jun 01, 1985) (8 pages) doi:10.1115/1.3231192 History: Revised September 21, 1984; Online October 22, 2009


Slow-speed rotary shear shredders have recently received considerable attention for processing of municipal solid waste. Potential benefits from shear shredding could include reduced explosion potential, lower power consumption, lower operating and maintenance costs and less overgrinding of glass. Although there has been much interest in rotary shear shredders, little actual operating data exists showing the capacity and performance of these units on municipal solid waste at full scale. A large-scale, 50 tph (45.3 tonnes/hr) Iowa Manufacturing Company (Cedarapids) Model 5096 (127 cm × 244 cm) shear shredder was installed and has been evaluated over a 6-mo period at the Charleston County Solid Waste Reduction Center. Two Heil 42F vertical shaft hammermills also are operated at the reduction center. Long-term landfill tests were conducted on waste processed by both shredders to measure the performance of the shear shredder and compare the effect of shredder type on landfilling characteristics. These results show capacity in excess of 60 tph (54.4 tonnes/hr) using 4-in. (10-cm) cutters and comparable landfilling characteristics for both types of shredders.

Copyright © 1985 by ASME
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