METHOD OF TREATMENT OF WASTE GASES IN DRY PRODUCTION OF MATERIALS Russian patent published in 1999 - IPC

FIELD: methods of treatment of waste gases in dry production of building materials; manufacture of building materials. SUBSTANCE: according to the proposed method, dust entrapped by wet method is dried by heat of waste gases to moisture content required for further use in technological process; pure heat-transfer agent is superheated to temperature dictated by the requirements of heat supply systems. Treatment of waste gases is effected in the following sequence: superheating of pure heat-transfer agent, drying of duct slurry, wet treatment of gas. EFFECT: obtaining pure heat-transfer agent at temperature corresponding to specified requirements and dust slurry at moisture content suitable for return to technological process. 2 cl, 1 dwg