PLANT FOR PREPARING SHAFT METHANE FOR UTILIZATION Russian patent published in 2007 - IPC E21F7/00 B01D47/00 

FIELD: coal industry, possible use for preparing shaft methane for utilization by various consumers.

SUBSTANCE: plant for preparing shaft methane for utilization contains vacuum-pump, moisture separator, devices for monitoring content of methane in gas mixture and pressure with mixer, devices for protection from emergency modes, gas mixture and drawn-out gas feeding pipelines and systems for monitoring methane concentration with gas analyzer and gas concentration controller, primary damping vessel, mounted in line for feeding drawn-out gas in front of mixer, secondary damping vessel, mounted after the mixer in line for feeding gas mixture to consumer, input pipeline with air intake. Plant is provided with additional gas analyzer, connected to gas concentration controller, filter for wet cleaning of gas, mounted between vacuum-pump and moisture separator, and odorant, connected to mixer and gas concentration controller by means of controlling valve. Mounted on input pipeline between air intake and mixer are pressure controller-stabilizer, additional controlling valves and cutoff valve.

EFFECT: improved quality of gas composition at output of plant by means of ensuring its stabilization, increased lifetime of equipment and increased safety of plant operation.

1 dwg