Compensator for compensating thermal expansions

In a facility for producing cement clinker from raw meal, the combination comprising:

• a pipeline (10) for conveying hot gases having a sheet-steel jacket (15) and a refractory lining, said pipeline (10) having adjacent in-line pipeline sections presenting confronting ends in spaced relation to one another to allow for thermal expansion, thereby creating an expansion gap between said refractory linings and jackets of said confronting ends of said pipeline sections,
• a temperature-stable elastic jointing material (20) in said expansion gap between said refractory linings of said confronting ends of said adjacent pipeline sections and
• a thermal expansion compensator structure around said pipeline (10) including
• a corrugated pipe compensator (18) having axially opposite first and second ends, said first end being secured to the sheet-steel jacket (15) of one said adjacent sections of said pipeline (10), said corrugated pipe compensator (18) lying in a first pipe cross sectional plane spaced from a second pipe cross sectional plane through said gap (19) and
• jacket parts (21) detachably connected to one another to form a circumferentially segmented collar encompassing said pipeline at said gap, one axial side of said collar being detachably connected to said sheet metal jacket of the other of said adjoining pipeline sections and the other axial side of said collar being detachably connected to said second end of said corrugated pipe compensator (18), said sheet steel jacket parts (21) being removable upon detachment from one another, detachment from said corrugated pipe compensator (18) and detachment from said sheet metal jacket (15) of said other of said adjoining pipeline sections thereby permitting access to said elastic jointing material (20) from outside said pipeline (10).