COMPLEX FOAM-GENERATING UNIT AND ITS OPERATION Russian patent published in 1999 - IPC

FIELD: construction engineering. SUBSTANCE: this unit can be used for producing foam from foam-generating liquid in wide spectrum of ratio and stability for further use in producing foam-concrete. For compact-size of unit, its body is adapted for displacement. Located in two compartments of body is compressor giving compressed air at pressure above 0.7 kg/sq.cm and proportioner-receiver with aerator which operate at air pressure above 0.7 kg/sq. cm. Installed in same body of unit above aforesaid components is vessel for foam-generating liquid and also vessel for water which is needed for washing up system after its operation. For producing foam in wide range of its ratio and stability, connected to aerator is pipeline for compressed air delivery from compressor, and pipeline for delivery of foam-generating liquid from proportioner-receiver. Installed in these pipelines are gate-valves for regulation of air pressure and pressure of foam-generating liquid at their delivery to aerator. EFFECT: higher efficiency. 7 cl, 9 dwg