Patent ID: 6260995
Filing Date: 2001-07-17
Classification: B01F,B08B,B29B,B29C

Abstract:
Mixing apparatus for the treatment of viscous mixed substance, comprising a housing (1) with a product inlet (6) and a product outlet (8), two or more shafts (2, 2') with, located thereon paddles (3, 3') extending in the circumferential direction, each of said paddles having an upstream side and a downstream side, and blades (4, 4', 5, 5') extending along the axial direction, and a drive means for the counter-rotation of neighboring shafts (2, 2'), whereinthe blades (4, 4', 5, 5') are respectively connected both to one of the shafts (2, 2') and to a paddle (3, 3'), except for the blades at the axial ends of the apparatus, which are not connected to paddles, and whereinon the upstream side of each paddle (3, 3') there is at least one outwardly conveying blade (5, 5') and on the downstream side of each paddle (3, 3') there is at least one inwardly conveying blade (4, 4'), except for the paddles which are located at the axial ends of the apparatus, and wherein, with the rotation of the shafts brought about by the drive means, the blades (4, 4', 5, 5') and paddles (3, 3') sweep fully over the inside wall of the housing (1) and consequently fully clean it kinematically, and wherein,with the rotation of the shafts brought about by the drive means, the blades (4, 4', 5, 5') and paddles (3, 3') sweep fully over the shafts (2, 2') and consequently fully clean them kinematically, and wherein,with the rotation of the shafts (2, 2') brought about by the drive means, the blades (4, 5) and paddles (3) of one shaft (2) are swept over by blades (4', 5') and paddles (3') of a directly neighboring shaft (2'), by the shaft (2') itself or by the housing inside wall and are consequently cleaned kinematically, and whereinpairs of blades (501, 502) following each other in the circumferential direction of a shaft (2) and at least one paddle (503) which is connected to one of the blades form a chamber into which, with the rotation of the shafts (2) and (2'), a blade (504') located on another, neighboring shaft (2'), in engagement, moves and thereby forces most of the product out of the chamber in the direction opposed to the surface of the paddle (503).