Screening tool and screening device

Abstract

A screening tool includes at least a first screen lining which is coupled to a metal coupling element to which an ultrasonic transducer is connected which is connected by electrical lines to an ultrasonic generator. The screening tool includes a metal work plate which has a connection region and at least one first transfer region with first transfer openings, which first transfer region forms the first screen lining through which particles of the process material which are larger than the transfer openings can pass, from particles of the process material smaller than the transfer openings, wherein the coupling element is a curved or straight rod having a first end piece welded to the connection region and a second end piece mechanically connected to the ultrasonic transducer. The screening device includes one or more such screening tools and a control unit by means of which the ultrasonic generator is controllable.

Dependencies are inferred from the claim text.