The invention relates to a dry-type film
oxygen enriching device which mainly comprises a
control system, an air filtering device, a high-pressure
centrifugal fan and an
oxygen enriching box, whereinan air inlet of the high-pressure
centrifugal fan is connected with the air filtering device; an inner cavity of the
oxygen enriching box is provided with an oxygen enriching film
assembly and an oxygen enriching air outlet pipeline; the bottom of the oxygen enriching box is provided with an air bellow communicated with an air outlet of the high-pressure
centrifugal fan; the oxygen enriching filmassembly comprises a plurality of oxygen enriching films arranged on the air bellow in parallel, an air inlet of each oxygen enriching film is communicated with the air bellow, and an air outlet of each oxygen enriching film is communicated with the oxygen enriching air outlet pipeline; and the oxygen enriching air outlet pipeline is connected to an oxygen use pipeline by an oil-free
vacuum pump.The invention assembles a full set of equipment into a whole, has compact structure, less space occupation, favorable effects of
air filtration,
oxygen enrichment and
combustion support, long servicelife of oxygen enriching films, no oil
stain and water in oxygen enriching air and
high oxygen concentration and outlet
air temperature, is beneficial to improving the temperature in a furnace, savesenergy, reduces consumption and reduces environmental
pollution.