Abstract
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.
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.
Keywords
blade of miller
Hammer Mill
mill capaci