AERODYNAMIC DRYING PLANT Russian patent published in 1998 - IPC

FIELD: drying articles and materials; drying plants at aerodynamic heating of heat-transfer agent used for drying large-sized articles, for example, cars after applying paints and varnishes. SUBSTANCE: recirculating aerodynamic drying plant includes heat-insulated housing 1 with rotor 2 of aerodynamic heating and vertical shield 3 and under-ceiling shield 7 mounted inside it. Outer sides of these shields form side passages 4 and under-ceiling chamber 8 together with walls and ceiling 1. Its inner side forms working volume 5 of drying chamber provided with hatches for loading and/or unloading the object being dried. Passages 4 and chamber 8 form closed loop for recirculation of air heat-transfer agent , delivery (outer) and suction (inner) parts of rotor 2 being the beginning and end of this loop, respectively. Shields 3 and 7 are made from heat-conducting material for radiation of heat inside the drying chamber. Vertical shield 3 has holes 13 for communication of working volume 5 with passage 4 and chamber 8, as well as for building up excessive pressure in drying chamber as compared with surrounding air medium. Working volume 5 is brought in communication with surrounding medium by means of vent tube 14 providing for soft blowing of object being dried and removal of steam-and-air mixture formed during drying. Chamber 8 and passages 4 are brought in communication of fresh air. EFFECT: enhanced efficiency. 3 cl, 7 dwg