Cyclic utilization equipment is retrieved on line to spent acid

The utility model provides a cyclic utilization equipment is retrieved on line to spent acid, relates to an useless acid recovery plant, including pneumatic diaphragm pump, oleic acid separating tank, filter, air compressor machine, power supply box, pneumatic diaphragm pump spent acid input, air supply input and spent acid output have, the spent acid input be connected with the output of descaling bath, the air supply input is connected with the output of air compressor machine, the spent acid output is connected with the input of oleic acid separating tank, the output of oleic acid separating tank is connected with the input of filter, the output of filter is connected with the input of descaling bath, the output of power supply box is connected with pneumatic diaphragm pump, filter, air compressor machine respectively. The utility model discloses can realize the spent acid and retrieve cyclic utilization on line, every production line on average uses sour volume be 100-200 kilograms every day, but recycle has not only reduced manufacturing cost nearly more than 60%, also avoids the wasting of resources, has reduced the waste water treatment cost, and its simple structure easily uses widely.