Screw-type processing plant with elongation and expansion compensation devices

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).