این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
International Journal of Mining and Geo-Engineering، جلد ۴۶، شماره ۲، صفحات ۱۳۳-۱۴۰
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی A Methodology to Estimate Ores Work Index Values, Using Miduk Copper Mine Sample
چکیده انگلیسی مقاله It is always attempted to reduce the costs of comminution in mineral processing plants. One of thedifficulties in size reduction section is not to be designed properly. The key factor to design size reductionunits such as crushers and grinding mills, is ore’s work index. The work index, wi, presents the oregrindability, and is used in Bond formula to calculate the required energy. Bond has defined a specificrelationship between some parameters which is applied to calculate wi, which are control screen, fineparticles produced, feed and product d80.In this research work, a high grade copper sample from Miduk copper concentrator was prepared, and itswork index values were experimentally estimated, using different control screens, 600, 425, 212, 150, 106and 75 microns. The obtained results from the tests showed two different behaviors in fine production.According to these two trends the required models were then defined to present the fine mass calculationusing control screen. In next step, an equation was presented in order to calculate Miduk copper ore workindex for any size. In addition to verify the model creditability, a test using 300 microns control screenwas performed and its result was compared with calculated ones using defined model, which showed agood fit. Finally the experimental and calculated values were compared and their relative error was equalto 4.11% which is an indication of good fit for the results.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله محمد نوع پرست |
school of mining engineering, university college of engineering, university of tehran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

s رحمتی |
school of mining engineering, university college of engineering, university of tehran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

گلناز جوزانی کهن |
school of mining engineering, university college of engineering, university of tehran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

s اصلانی |
school of mining engineering, university college of engineering, university of tehran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

a قربانی |
school of mining engineering, university college of engineering, university of tehran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

نشانی اینترنتی http://ijmge.ut.ac.ir/article_51323_74143567616d24a8ab9fcbf34fa90b4f.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات