Non copper pipe lead electrolytic refining energy-saving high-efficiency environment protection novel technique

The invention relates to a new technical process for refining through lead electrolysis without copper tubes of wet lead electrolysis, which is energy-saving, high efficient and environmental friendly. The method has main characteristics that firstly, traditional rectification power supply which is cumbersome is cancelled, high frequency switching power supply which is made of nanometer material is adopted, energy is saved by 20%-30%, secondly, the copper tubes are not used to conduct electricity, and thirdly, the flow direction of electrolyte is changed. A positive electrode 1 of the power supply enters a positive plate 3 to react with the electrolyte through a hanger 2 on the first positive plate, is transformed into lead ions 4, flows to an emission surface 5 whose right side is clung with a cathode plate of a second positive plate, and is reduced to pure metal lead. Current flow also flows to the emission surface of a third positive plate through the back 6 of the second positive plate. The positive electrode of the power supply forms a return circuit with a negative electrode 8 of the power supply through continuously transmitting to a last cathode plate 7, the electrolyte 9 flows into a liquid inlet tube 10 from an elevated tank, respectively flows through a distribute tube 11, flows to an inlet on the bottom of an overflow flat groove 12, then, ascends to flow into a distribute tube 13, enters an underground tank through a liquid return pipe 14, and hoists to the elevated tank through a pump, wherein exhaust gas, waste slag and wastewater are not discharged in electrolysis.