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The bond ball mill work index of each sample was measured using the standard equipment and procedure bergstrom, 1985 using a constant closing sieve of 300 m.In all tests, material passing the closing sieve was removed from the feed, in an attempt to limit the influence of variations in feed size distribution in the test.
Procedure for determination of ball bond work index in.1 introduction a bond ball mill work index test is a standard test for determining the ball mill work index of a sample of ore it was developed by fred bond in 1952 and modified in 1961 jkmrc co 2006this index is widely used in the mineral industry for comparing the resistance of different materials to ball milling for estimating the.
0 ball charge design objectives the ball charge is the medium through which we accomplish comminution in tumbling mills.Wi bond work index, kwh short ton 13.Du useful inside mill diameter, m 3.Using the alpena fm19 data provided earlier we calculated the polysius model ball charge design solution for this mill.
W bonds work index kwht p 80 particle diameter of product, 80 passing m f 80 particle diameter of feed, 80 passing m o the bonds work index of a material, which is commonly used in the british commonwealth as well as us, is determined in a standard laboratory ball mill but the test is cumbersome to perform.
The following modified bond equation was proposed for crushing magdalinovic, 1990 wc cp a wi cp 10 - cf 10 8 where wc - is energy consumed for clinker crushing kwht, wi - is bond ball mill work index kwht, pc -is sieve size passing 80 of the clinker after crushing m, fc - is sieve size passing 80 of the clinker before.
Energy index in the laboratory test and by using the c factor we can establised the bond work index which is appalicable for the inductrial mill.I experience in many inductries people use different type of lab ball mill for testing totally different with the details what you give in attachement link.What is the the impact of this.
Ball mill work index limestone sand.Ball mill work index sand limestone grinding mill china ball mill work index sand limestone 49 8342 ratings the gulin product line consisting of more than 30 machines sets the standard for our industry we dapatkan harga.Details bond index ball mill rod mill bt 100 xl retsch.
Bond work index procedure and method cleaning and storing of ball mill charge after the bond work index procedure is done add about 500 g of silica sand into the mill containing the ball charge seal the mill rotate for 20 revolutions to clean empty the mill charge and sand into the ball try once grinding is complete silica sand ball.
Bond grinding of clinker.Bond index of clinker.Bond grinding index of clinker the fc bond ball mill is a small universal laboratory mill used in calculating the grindability of once a suitable grinding charge is prepared from one grade ofballs count and note the number diameter as shown in the work index.
Applicable reasonably in conventional ball mill and rod mill grinding holds good for 5 cm 50.The power input is computed from bond work index, feed and product particle sizes by w 10 wi p0.5 9c w power input wi work index f 80 passing size of feed.
Bond ball mill work index clinker bond work index procedure and method this grindability test or bond ball mill work index procedure is used to determine the bond work index of minus six mesh or finer feed ore sampl these equation application methods are used to process lt12 ore samples in a get price.
Limestone bond ball mill work index pdf.As a fast method the determination of the bond index from the hardgrove testfriability value ball mill bond work index for limestone quarry crusher zenith crushing equipment is designed to achieve maximum productivity and high reduction ratio from large primary jaw crusher and impact crusher to cone crusher and bond work index of.
Bond ball mill grindability test christina.202053bond ball mill work hardness jktech.Jktech laboratory laboratory servicesthe standard bond rod mill work index test procedure is firstly to stage crush the feed to pass 127 mm and sie a representative sample the test then involves a series of batch grinds in a standard bond rod mill a bond rod mill is 0305m by 0610m with wave liners of a form.