Effect of number, thickness of the blades and feed rate on the capacity and power consumption of the hammer mill

Abstract EN

The research aims to manufacture of hammer mill with the least number of parts, suitable thickness of blades, lowest energy cost and suitable capacity.

A experiment was conducted with three factors( Number , thickness of blade and feed rate) the first with three levels 2, 3 and 4 blade , the second with three levels 6, 9, 12 mm with a weight of 98 grams for each and the third feed rate are levels of 90 and 180 kg.h-1.

The results showed a significant effect of number(A) , thickness of blade(B) and feed rate(C) on the production capacity and specific energy consumption.

A significant effect of the combination of A with B and A with C on the production capacity and specific energy consumption.

the superiority of the number of the four blades with lowest of thickness .

Hammer mills can be designed with the lowest blade thickness, when using a large number of blades, in order to reduce the cost of materials used in manufacturing, as well as reduce the cost of the energy requirements of the production unit.