African Evaluation Database

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3801

Source

Scopus

Electronic ID

2-s2.0-77949909915

Authors

OLALEYE B.M.

Title

Influence of some rock strength properties on jaw crusher performance in granite quarry

Publication Year

2010

Source Title

Mining Science and Technology

Volume

Issue

Citations

DOI

10.1016/S1674-5264(09)60185-X

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-77949909915&partnerID=40&md5=d00f898460bf8a85e165a769a7fc4f96

Affiliations

Department of Mining Engineering, Federal University of Technology, Akure, Nigeria

Authors with Affiliations

OLALEYE, B.M., Department of Mining Engineering, Federal University of Technology, Akure, Nigeria

Abstract

The influence of rock strength properties on Jaw Crusher performance was carried out to determine the effect of rock strength on crushing time and grain size distribution of the rocks. Investigation was conducted on four different rock samples namely marble, dolomite, limestone and granite which were representatively selected from fragmented lumps in quarries. Unconfined compressive strength and Point load tests were carried out on each rock sample as well as crushing time and size analysis. The results of the strength parameters of each sample were correlated with the crushing time and the grain size distribution of the rock types. The results of the strength tests show that granite has the highest mean value of 101.67 MPa for Unconfined Compressive Strength (UCS) test, 6.43 MPa for Point Load test while dolomite has the least mean value of 30.56 MPa for UCS test and 0.95 MPa for Point Load test. According to the International Society for Rock Mechanic (ISRM) standard, the granite rock sample may be classified as having very high strength and dolomite rock sample, low strength. Also, the granite rock has the highest crushing time (21.0 s) and dolomite rock has the least value (5.0 s). Based on the results of the investigation, it was found out that there is a great influence of strength properties on crushing time of rock types. © 2010 China University of Mining and Technology.

Author Keywords

crushing time; efficiency; grain size distribution; jaw crusher; rock strength

Index Keywords

Dolomite rocks; Grain size distribution; Granite quarry; Granite rock; High strength; International society; Jaw crushers; Least value; Mean values; Point load tests; Rock sample; Rock strength; Rock types; Size analysis; Strength parameters; Strength property; Strength tests; Time efficiencies; Unconfined compressive strength; Cements; Compressive strength; Crushers; Grain size and shape; Granite; Quarries; Rock mechanics; Rocks; Size determination; Size distribution; Statistical tests; Crushing

Funding Details

None