Apparatus for the wet crushing of material

Apparatus for supplying material to a wet-crushing mill, comprising a storage container for the material, having a bottom outlet, and a rotary feeder which (a) is arranged below the storage container, (b) has a top inlet joined to such bottom outlet, (c) forms a bottom closure for the container, (d) has peripheral wall sections on two opposite sides of the feeder and (e) has a bottom outlet, a drainage sieve to separate steeping water from the material being fixedly arranged between the latter bottom outlet and a peripheral wall section which is adjacent to the downward-traveling peripheral portion of the rotary feeder, at least one device for delivering steeping water to the material being arranged above the rotary feeder, and an after-steeping vessel being arranged below the feeder to receive material therefrom.