Air jet sieve for grain size analysis and corresponding screen element

摘要

The filter has a housing, a filter insert selected from a number with different mesh pitches, a slot nozzle beneath the filt bottom, a drive for the slot nozzle, an air feed to the nozzle, an air outlet via the housing from the chamber beneath the filte bottom and a controller. The filter machine has a sensor (2) for automatic identification of the inserted filter (4) using codin the insert. The coding can be stored on a writable memory medium. An Independent claim is also included for a filter insert.