Effect Of Relative Of Picking Tyne, Ground Clearance And Quantity Of Trash Left On Collection Efficiency Of The Sugarcane Trash Collector

摘要

The collection of sugarcane trash is a labour intensive operation. After harvesting, large quantities of sugarcane trash are unutilized because of handling, storage and management difficulties. By burning of trash, the nitrogen content of cane trash is lost and also removed the natural trash mulch from the field. Usually the sugarcane trash after harvesting and chopping of the top will be left in the field in spread form. For shredding, the sugarcane trash has to be collected and fed into the shredding unit. A sugarcane trash collector was developed and the effect of relative velocity of picking tynes (2.4, 3.0 and 3.7 m s~(-1)), ground clearance (20, 30 and 40 mm) and quantity of trash left in the field (0.50, 0.75 and 1.00 kg m~2) on the collection efficiency of the sugarcane trash collector was analyzed and optimized for maximum collection efficiency. The increase in relative velocity of the picking tynes from 2.4 to 3.0 m s~(-1) resulted in increase in collection efficiency of 96.6 and 96.7 % for 20 and 30 mm ground clearance, respectively, at 0.5 kg m~(-2). For the weight of trash at 0.75 kg m~(-2), the collection efficiency was higher for 20 mm ground clearance. The increase in relative veloc-rnity of picking tyne from 2.4 to 3.0 m s~(-1) resulted in gradual increase in collection efficiency for 20 and 40 mm ground clearance. The increase in relative velocity of picking tynes from 3.0 to 3.7 m s~(-1), resulted in uniform increase in collection efficiency for 0.5 and 0.75 kg m~(-2) weight of trash, whereas, 1.0 kg m~(-2) weight of trash had almost no effect on collection efficiency. The performance of the trash collector was affected by the relative velocity of the pickup unit, ground clearance between the tyne and the ground level and the weight of trash. The optimized combination of relative picking velocity of tynes with 3.7 m s~(-1), ground clearance of 20 mm and 0.75 kg m~(-2) weight of trash yielded the maximum collection efficiency of 96.5 %.