Development and Performance Evaluation of Prototype Double Roller Gin

摘要

Double roller gins are commonly used in India for ginning seed cotton. International Textile Manufacturers Federation's survey 2005 reported that degree of grease and oil contamination in cotton lint is serious in India. The source of this contamination is the gearbox (power transmission system) of the double roller gin as it is filled with grease/ oil measuring about 20 kg. Further, chrome leather washers are used for manufacturing of rollers. These are not operator and eco-friendly due to pollution. A prototype double roller gin has been designed and developed with a new power transmission system and alternate roller materials (viz. canvas and Nyla-thane) were tested. Performance evaluation studies have .revealed that the newly designed prototype double roller gin requires minimum grease and the oil and roller material tested work satis-factorly. High Volume Instrument's showed that quality of lint is at par with existing double roller gins with no prospect of oil and grease contamination. The developed machinernis useful for cotton breeders, seed processing industries, ginneries and research institutes and will be the basis for modified double design of a commercial size roller gin.