Patent ID: 7547132

Claim:
A material processing plant, comprising a first screw-type machine provided with a first casing ( 10 ), at least one first casing bore ( 11 , 12 ) provided with a first axis ( 13 , 14 ), a first screw shaft ( 15 , 16 ) disposed in the at least one first casing bore ( 11 , 12 ), a first feeding area for material to be processed, said first feeding area projecting into the first casing bore ( 11 , 12 ) at a first end of the first casing ( 10 ), a first discharge area ( 19 ) disposed at a second end of the first casing ( 10 ), downstream in a first direction of flow ( 17 ) of the first feeding area, and a column ( 34 ) supporting the first casing ( 10 ) in the area of the first discharge area ( 19 ), a second screw-type machine provided with a second casing ( 20 ) disposed below the first casing ( 10 ), at least one second casing bore ( 21 , 22 ) provided with a second axis ( 23 , 24 ), a second screw shaft ( 25 , 26 ) disposed in the second casing bore ( 21 , 22 ), a second feeding area ( 28 ) projecting into the second casing bore ( 21 , 22 ) at a first end of the second casing ( 20 ), and a second discharge area ( 30 ) disposed at a second end of the second casing ( 20 ), a pipe elbow ( 27 ) which connects the first discharge area ( 19 ) to the second feeding area ( 28 ), is connected to the first screw-type machine by means of an elongation compensation device ( 43 ), compensating elongations of the first casing ( 10 ) relative to the second casing ( 20 ), and is connected to the second casing ( 20 ), and an expansion compensation device ( 47 ) provided between the column ( 34 ) and the first casing ( 10 ) compensating expansions of the second casing ( 20 ) upward and perpendicular to the second axis ( 23 , 24 ) by displacing the first casing perpendicular to the first axis ( 13 , 14 ) and the second axis ( 23 , 24 ) wherein the expansion compensation device ( 47 ) is a slide bearing provided with a sliding surface ( 50 ) which slopes up towards the first axis ( 13 ) in the first direction of flow ( 17 ) and wherein the sliding surface ( 50 ) is formed between two wedges ( 48 , 49 ) of which a lower wedge ( 48 ) is connected to the column ( 34 ) and an upper wedge ( 49 ) is connected to the first casing ( 10 ).