Categories of Cutting length ,cm
T
h
e
cu
tt
in
g
le
n
g
th
p
e
rc
e
n
ta
g
e
,%
.
feed rate=0.5 ton/h
feed rate=1ton/h
feed rate=1.5 ton/h
3-chopping drum speed.
Fig.(4): the relation between the cutting length percentage % and
categories of cutting length at different drum speed for different crop
residues.The obtained results indicated that increasing drum speed from
13.1 to 18.33 m/s, increased the percentage of cut length of <3.5 cm (first
category) from 69.1 to 72.26 % of rice straw, from 71.5 to 75.61 % of
corn stalks and from 61.3 to 65.81 %of cotton stalks respectively. While
the second category (3.5 -10) cm was increased from 14.2 to 15.64 % of
rice straw, from 13.9 to 14.89 % of corn stalks and reduced from 20.9 to
18.9 % of cotton stalks respectively.
Thus the third category (>10 cm) was decreased from 16.7 to 12.1 % of
rice straw, from 14.6 to 10.5 % of corn stalks and from 18.2 to15.3 % of
cotton stalks at 4 cm
2
oval slots concave, 1.5 ton/h feed rate,14.3 %
moisture content and 3 cm drum-concave clearance.
Fig.(4): the relation between the cutting length percentage % and categories
of cutting length at different drum speed for different crop residues.
Dostları ilə paylaş: | 
