Design and Test of Stripping and Impurity Removal Device for Spring-Tooth Residual Plastic Film Collector

The residual agricultural plastic film in China is not easily recovered due to the thinness and poor mechanical properties of domestic films, a large amount remaining farmland soil poses great threat quality crop production. A spring-tooth collector (SRPFC) widely used (RPF) recycling operations. However, there are two major problems current SRPFC: low recovery rate (RRRF) caused by difficulty film-stripping high impurity (IRF). In this paper, stripping removal device (SIRD) designed address existing SRPFC, which mainly composed tooth plates (FTP), wind-collecting hoods, centrifugal fans. motion force analysis RPF process was carried out, arc FTP determined be for film-stripping. size parameters were obtained establishing coordinate system solve differential equation. By comparing analyzing airflow field test bench suspension speed hood, equivalent particle established. discrete phase model (DPM) Fluent software simulate movement particle, calculated air volume range fan 5501.88~6829.92 m3/h. effects forward speed, rotating conveying chain harrow (FCCH), on RRRF IRF studied orthogonal rotary combination experiment. results showed that best machine operation when 5 km/h, FCCH 235 r/min, 1978 r/min. Under these conditions, 92.53%, 9.31%. Field experiments out with rounded parameters, average 92.07%, 9.56% under parameter combination, indicating optimization scheme feasible.