Study on Development of Precision Detrasher for Sugar Cane (2)

In order to develop a sugar cane detrasher by the air, the separating performance of the trash was examined. The results obtained are as follows.1) With the increasing of the wind velocity of the blower from 9.5m/s to 12.3m/s, the trash rate of the cutting raw material cane lengths of 20cm and 30cm decreased by about 2.6-2.3%, about 3.2-2.8%, respectively (initial trash rate: 17.6%).2) With the increasing of the wind velocity of about 1.5m/s, the extent of the cutting cane lengths of 20cm and 30cm by the winnowing became wider about 5-15cm under the X-direction and about 10cm under the Y-direction.3) The max. extent of the trash by the winnowing showed the width of about 300-400cm from the outlet of the blower and the max. dispersing distance of the trash was 500cm, at the wind velocity of 10.8m/s and the cutting cane length of 20cm. With the increasing of the wind velocity of about 1.5m/s, the max. extent and the max. dispersing distance showed the increase of the width of about 50cm and of the length of about 100cm.4) The proper wind velocity of the blower and the cutting length of the cane were 10.8m/s, 20cm, respectively, when the trash rate was about 2.4% and the working efficiency was about 4.2ton/h.5) With the increasing of the air pressure of the outlet of the compressor from about 10×105Pa to 59×105Pa, the percentage of the weight of the separated trash and of the piece of the detrashed cane increased, respectively.6) The percentage of the weight of the separated trash and of the piece of the detrashed cane were about 90% and about 77%, respectively, at the air pressure of about 59×105Pa.