FIELD: devices for forming dense fluidized layers. SUBSTANCE: device includes casing 1 and chamber 2 placed in this casing; solids are pored into this chamber; chamber 2 is provided with lower casing for delivery of fluidizing air, nozzles 4 mounted on lower wall 2A and heat exchanger 5 which consists of many parallel tube bundles; each tube bundle is connected with heat-transfer agent inlet collector in lower portion; it consists of one tube located longitudinally relative to casing 1; in upper portion it is connected with inlet collector of preheated heat-transfer agent 7; it also consists of tube located longitudinally relative to casing 1. EFFECT: facilitated manufacture and ease of maintenance. 7 cl, 2 dwg
