Patents
The invention provides a thresher cum winnower device for glory lily, which consists of a feed hopper, threshing chamber, husk outlet, blower, bean outlet chute and an electric motor mounted over a suitable metal frame. The thresher cum winnower is used for the threshing the glory lily pods and separating the beans from the husk. The threshing cylinder present in the threshing chamber is operated at a peripheral speed of 6.5 m/s, with a clearance of 30mm between the tip of the pegs present in the threshing cylinder and the concave solid cover to thresh the pods and free the beans from the husk; operating the blower at an air velocity of 7.5 m/s to lift the broken husks coming along with the beans through the concave solid cover after threshing and achieve the cleaning operation. The above said operating parameters were optimized for a feed rate of 250 ±10 kg of pods/h. with the above said operating conditions of the thresher cum winnower recorded a threshing efficiency of 99.81 per cent, winnowing efficiency of 99.92 per cent, bean damage of 0.03 per cent and bean loss of 0.275 percent.