SELF-REGENERATIVE INTEGRATED DEVICE FOR SYNERGETIC OXIDATION OF LOW CONCENTRATION GAS AND VENTILATION GAS IN COAL MINE

摘要

FIELD: power engineering.;SUBSTANCE: invention relates to energy saving in safety techniques for coal mines. Proposed self-regenerative integrated device for synergetic oxidation of a low concentration gas and a ventilation gas in a coal mine. Integrated device comprises metal shell (5) and oxidation layer (13) from ceramics in the form of cells, which is located inside metal shell (5) and is divided into regenerative section (40) and oxidation section (41) by means of heat exchange chamber (14). First cavity between regenerative section (40) and the inner wall of metal shell (5) is divided into first inlet chamber (6) and outlet chamber (8) by means of inlet separating partition (7), the second cavity between oxidation section (41) and the inner wall of metal shell (5) is divided into second inlet chamber (22) and mixing chamber (20) by means of separating partition (21) to average the gas and multiple gas-spraying nozzles (28) arranged on separating partition (21) to average the gas. Internal heat exchanger (35) is located inside chamber (14) of heat exchange, and inlet (16) of the heat exchanger and outlet (15) of the heat exchanger of internal heat exchanger (35) are connected to drum (18) of the boiler, respectively. First inlet chamber (6) is connected to inlet (1) of the ventilation gas via control valve (38) of proportional action, second inlet chamber (22) is connected to inlet (31) for extraction of the low concentration gas through mixer (33) of proportional action, and control valve (38) of proportional action is connected to mixer (33) of proportional action by means of connection pipeline (36). Two ends of pipe (9) for preliminary heating of the inlet gas on oxidation layer (13) from ceramics in the form of cells are connected, respectively, with first inlet chamber (6) and mixing chamber (20).;EFFECT: technical result is providing high energy efficiency and reducing emissions of gas mixtures into the atmosphere.;5 cl, 4 dwg