عنوان مقاله :
بررسي عملكرد هيدروسيكلون هاي اوليه و ثانويه مدار خردايش كارخانه فسفات اسفوردي
عنوان به زبان ديگر :
Investigation on the Primary and Secondary Hydrocyclones Performance in Grinding Circuit of Esfordi Phosphate Plant
پديد آورندگان :
نوع پرست ، محمد نويسنده noe parast, mohammad , پوركريمي، ضياءالدين نويسنده دانشگاه آزاد اسلامي علوم و تحقيقات, pour karimi, ziaoddin , دهقاني احمدآبادي، علي نويسنده Dehghani Ahmadabadi, ali
اطلاعات موجودي :
فصلنامه سال 1388 شماره 121
كليدواژه :
شبيه سازي , فسفات , هيدروسيكلون , اسفوردي
چكيده لاتين :
Due to the importance of material classification issue in grinding circuits, the performance of primary and secondary hydrocyclones in grinding circuit of Esfordi phosphate plant was investigated by sampling within 7 days from feed, overflow, and underflow of these hydrocyclones. At first, the dso of above streams samples were calculated by the screening analysis. The results showed that the average values of d8o of feed, overflow and underflow of primary hydrocyclone were respectively 238.7, 236.5 and 100.9 microns, and 100.9 and 94.1 microns for the feed and underflow of secondary hydrocyclone. For the primary hydrocyclone, with plotting distribution curves, its cut-points, the actual and corrected cut-points were calculated which were 35 and 45 microns, respectively, whereas they were equal to 100 microns according to the design documents. However based on the undesirable performance of primary hydrocyclone, it was tried to investigate on its performance using simulation software. The results indicated 80 microns cut-point and 192.30 kpa of pressure drop in particle classification. In addition, the amount of circulating load obtained 931.84% (in primary mill design, this amount was equal to 150%), and high feed rate to hydrocyclone was one the major reasons for this high circulating load. To solve this problem, it was considered one more hydrocyclone could be added to this circuit in the form of parallel and series, and results were studied using BMCS software. The results of this criterion of adding a parallel hydrocyclone, showed 86 microns of cut-point with 62.91 kpa of pressure drop which were suitable for the circuit.
عنوان نشريه :
نشريه دانشكده فني دانشگاه تهران
عنوان نشريه :
نشريه دانشكده فني دانشگاه تهران
اطلاعات موجودي :
فصلنامه با شماره پیاپی 121 سال 1388
كلمات كليدي :
#تست#آزمون###امتحان