1. Calculate the maximum particle size of the material before crushing by using the ratio of the maximum particle size of the material before crushing to the maximum particle size of the crushed product; dmax - the maximum particle size of the material after crushing.

2. The ratio of the effective width of the feed opening of the crusher to the width of the discharge opening i=0.85B/b

In the formula B---crusher feed port width; b---crusher <drainage port width; 0.85- to ensure that the crusher bites the effective width of the material. The value of the width of the discharge opening, the width of the largest discharge opening of the coarse crusher

3. Calculate i=Dcp/dcp with average particle size. Dcp—the average diameter of the material before crushing; dcp—the average diameter of the material after crushing.

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