Disclosed is a
salt lake lithium extraction
electrodialysis apparatus, which relates to the technical field of
lithium salt production. Said apparatus comprises a containing
assembly, an
electrodialysis assembly, and a stirring
assembly; the containing assembly comprises a
barrel, a top cover, and a feed
pipe; the top of the
barrel is rotatably connected to the top cover, the
barrel is in communication with one end of the feed
pipe, and an inner slot is formed on an inner wall of the barrel; a communication
pipe is arranged on the top cover; the
electrodialysis assembly comprises a first
anode cylinder, a first
ion exchange membrane, a first
cathode cylinder, a second
ion exchange membrane, and a second
anode cylinder; the top of the first
anode cylinder is fixedly connected to the top cover, and a gap is present between the bottom of the first anode cylinder and the bottom wall of the barrel body. The present apparatus facilitates
lithium chloride,
sodium, and
potassium cations in passing through the first
ion exchange membrane and entering into a space between between the first
ion exchange membrane and the first
cathode cylinder, and after a round of purification, a concentrated solution is formed; also, the present apparatus can stir and mix a
raw material liquid, which accelerates the movement of cations in the
raw material liquid and is beneficial for improving extraction efficiency.