MICRO-INGREDIENTS CARRY-OVER DURING BUCKET ELEVATOR HANDLING IN FEED INDUSTRY: INFLUENCE OF PROCESS PARAMETERS

摘要

Currently, carry-over level of feed production lines can be accurately defined, butnthe causes are not identified yet because of a misunderstanding of this phenomenon.nOn-site studies charged conveying equipment between mixer and pelletingnpress, and especially bucket elevator, to be responsible for carry-over level increasing.nA series of experiments has been carried out on a bucket elevator test bench innorder to determine how process parameters influence carry-over phenomenon.nProduct deposits on equipment walls represent, on average, 3.0% of the initialnbatch mass and contain about 0.2% of micro-ingredient after one tracer batchnpassing and 0.1% after flushing batch passing. Experimental design results showednthat parameters acting on micro-ingredient deposited are different from thoseninfluencing collected product. Therefore, optimal position of tested processnparameters will depend on the batch objective regarding its position in the productionnschedule.