FIELD: chemistry.
SUBSTANCE: invention relates to chemical industry and can be used in production of chemical reactors operating under vacuum and high temperatures. Lining of vacuum reactor of high-temperature plant consists of lining 14 of bottom, 15 of cover and side lining 16 of housing, which contain hollow tight article 19 of integral structure, in cavity of which there are containers 18 with heat-insulating material 17. Hollow sealed article 19 is equipped with nozzle 20 located on outer metal shell 2 and intended for evacuation and inert gas inlet. In lining 15 of cover and side lining 16 of housing hollow tight article 19 is located with possibility of free movement. Upper flange 3 of hollow tight article 19 in side lining 16 is heat-insulated by material 21. Each of lining 14, 15 and 16 additionally contains system of thermal screens 23 from carbon-carbon composite material (CCCM) or carbon-carbide-silicon material (CCSM). In side lining 16 the hollow sealed article 19 is located on the reactor bottom through damping pad 24, and upper flange 3 is equipped with travel limiter 25 in the longitudinal direction. Hollow sealed article 19 consists of inner 1 and outer 2 shells connected at ends or ends by common flanges, and height by connecting elements in the form of bushings or stiffness ribs. Inner 1 and outer 2 shells are made of CCCM and metal operable at the product operation temperature, respectively. Connecting elements are made from materials of different composition and heat resistance, including CCCM, metals and plastics, on one of ends flexible, including with compensators difference in elongations of shells 1 and 2. Flanges have metal tips.
EFFECT: technical result consists in preservation of tightness in operating conditions of reactor elements in different temperature zones, reduction of amount of formed gases directly in reaction space, elimination of negative effect of lining.
10 cl, 9 dwg
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