The results of experimental studies of the СM2500-G shredder

The article presents the modernization of the CM2500-G type serial shredder. In a serial shredder of the CM2500-G type, grain material is crushed by the blows of 20 hinged hammers that are suspended on a rotating drum. However, they have significant drawbacks given in the зфзук. To increase its productivity and reduce energy consumption in a serial shredder of the CM2500-G type, it was proposed to replace the working body with cutting knives in the form of the Archimedes’ Arbelos curved triangle with saw teeth along the perimeter of the entire surface of the cutting edge. As a result of the conducted research, equations were obtained to determine the performance of a converted CM2500-G type shredder and the specific energy intensity of the sunflower cake grinding process, depending on the selected parameters. The converted CM2500-G type shredder, compared with the serial one, allows it to be standardized and reduce the specific energy consumption of the sunflower cake grinding process. With these rational values of design parameters (the number of teeth N on the cutting knife is 28...32 pcs., the rotor speed ?r = 255...269 s–1 and the tooth height on the cutting knife is h = 7.5 ...9.5 mm) of the improved CM2500-G type shredder, its performance and specific energy consumption of the sunflower cake grinding process are determined, which amounted to 196.6 kg/h and 5.21kWh/t, respectively.