air may be delivered around the nozzles into the duct to prevent buildup of cotton and debris around the nozzles application_number US 201614999434 A description referring to fig1 4 a cotton gin 10 may comprise as major components a module feeder 12 for disintegrating a cotton module 14 a transport system 16 for delivering cotton clumps from the module feeder 12 through the various components of the gin 30 cotton gins 10 typically include a feed controller 18 a series of separators or cleaners 20 22 for separating seed cotton or cotton lint from plant debris upstream from one or more gin stands 24 which separate cotton seed from lint a cleaner 26 downstream of the gin stands 24 may remove any residual dust or plant parts conveying air introduced in a conventional manner downstream of the gin stands 24 delivers cotton fibers through the cleaner 26 and through a duct 28 leading to a battery condenser 32 the duct 28 may be a wide rectangular duct which necks down through a transition 30 to a round duct 34 inside the battery condenser 32 is a screen 36 or other suitable means for separating conveying air flow cotton lint and producing a cotton batt 38 the cotton batt 38 slides by gravity along a lint slide 40 into to a bale press 42 where the ginned cotton is.