Thin-film apparatus

Claim 1

A thin-film apparatus for treatment of flowable materials, comprising means defining an essentially vertically arranged, rotationally symmetrical treatment compartment bounded by a circumferentially entire wall portion, inlet connection means proviDed at an elevated position on said wall portion for the introduction of the material to be treated, rotor means arranged substantially coaxially within said treatment compartment, a distributor ring arrangement provided for said inlet connection means, said distributor ring arrangement being substantially concentrically secured to said rotor means and possessing a diameter which is inset with respect to the wall portion of said treatment compartment towards the axis of said rotor means, said distributor ring arrangement incorporating respective ring-shaped disc members arranged at its upper and lower ends, said ringshaped disc members bounding in axial direction the space partially delimited by said distributor ring arrangement and said treatment compartment wall portion and forming together with said space a chamber for receiving and distributing the material introduced into said treatment compartment by said inlet means, said distributor ring arrangement further including an intermediate disc member which is secured thereto parallel to and axially spaced from said upper disc member, said intermediate disc member approximately corresponding in diameter to said upper disc member, a plurality of axially extending vane portions arranged at said distributor ring arrangement and also extending radially towards said treatment chamber wall portion, said vane portions extending axially from said lower disc member and terminating at an axially spaced location from said intermediate disc member.