Blade and Operational Parameters on Shredding Efficiency on Cotton in Experimental Cotton Stalk Shredder

摘要

The influence of the selected level of variables of three levels of number of blades viz. 2, 3 and 4, four levels of peripheral velocity viz. 21.52, 23.80, 26.58 and 28.60 ms~(-1) three levels of blade thickness of 2, 4 and 6 mm and four levels of blade rake angle of 0,15, 30 and 45 degree on shredding efficiency in terms of length of cut of cotton stalk was investigated. The revealed that increase in peripheral velocity from 21.52 to 28.60 ms1 resulted in decreased length of cut. The lowest value oflength of cut of 113.83 mm was observed at the shredder with 2 blades, 0 degree blade rake angle and 28.60 ms 1 peripheral velocity. At 0 degree blade rake angle, the length of cut of shredded cotton stalk was much lower than other blade rake angles at6mm blade thickness. Increase in number of blades from 2 to 4 resulted in increased length of cut for all the levels of blade rake angle. Increase in blade rake angle from 0 to 45 degree resulted in increased length of cut for all the levels of peripheral velocity and number of blades. 2 blades with 0° blade rake angle, 6 mm blade thickness and 28.60 ms 1 peripheral velocity recorded lowest value of length of cut than other combinations