ORGANIC SOLVENT RECOVERY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a system which surely recovers an organic solvent to effectively prevent dispersion of the solvent to the atmosphere, wherein equipment can be manufactured in compact size at low cost.

SOLUTION: This organic solvent recovering system comprises: a suction pipe 1 with a suction port 2 faced to an upper part of a washing tank 101 storing an organic solvent; a discharge pipe 4 with a discharge port 5 faced to the inside of the washing tank 101; and a treatment device 3 connected to the suction pipe 1 and discharge pipe 4. Air containing an organic solvent vapor of low concentration sucked from the suction port 2 is concentrated to an organic solvent vapor of high concentration in the treatment device 3, then is returned to the washing tank 101 from the discharge port 5. The treatment device 3 is provided with a plurality of adsorbing columns 10a, 10b with an adsorbent packed therein; an adsorbing discharge pipe 13; an adsorbing suction pipe 11; a desorbing discharge pipe 12; an adsorbing fan 31; and a desorbing pump 33.

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