METHOD AND INSTALLATION FOR STEAM-CURING TREATMENT OF BUILDING MATERIALS WITH HEAT RECOVERY Russian patent published in 1998 - IPC

FIELD: manufacture of building materials. SUBSTANCE: steam is supplied from autoclave-source at constant gauge pressure in autoclave-receiver 0.107-0.115 Mpa to attain temperature 85-95 C in autoclave-receiver, after which steam is forced into source-receiver system at constant volume in the system. Resultant condensate at temperature below temperature in autoclave- source is removed into open-type receiver, and condensate at higher temperature is accumulated in pressure-collector in order to reuse secondary boiling-up steam. Before pressure drop between source and receiver attains approximately 0.08-0.1 Mpa, steam is fed into autoclave-receiver under influence of natural pressure drop and then by the aid of compressor. Installation contains condensate collector under pressure, compressor to feed steam from autoclave-source and condensate collector into autoclave-receiver. EFFECT: reduced power consumption. 6 cl, 1 dwg