I. Lithium iron phosphate vacuum drying machine--Overview of equipment

The lithium iron phosphate battery refers to a lithium ion battery using lithium iron phosphate as a positive electrode material. The positive electrode materials of lithium ion batteries mainly include lithium cobaltate, lithium manganate, lithium nickelate, lithium iron phosphate and the like. Among them, lithium cobaltate is the positive electrode material used in most lithium ion batteries.

The lithium iron phosphate vacuum squeezing dryer comprises a frame and a cylinder fixed horizontally on the frame, the casing is provided with a heat insulating sleeve, and the upper outer wall of the cylinder body is provided with a steam inlet, a vacuuming device, a feeding port, and a lower outer wall of the cylinder body. The utility model is provided with an exhaust port and a discharge opening, the cylinder body transversely penetrates the stirring shaft, one end of the stirring shaft is connected with the gear reduction motor, the other end is connected with the bearing fixed on the inner wall of the cylinder body; the short arm spiral molar tooth and the long arm spiral are mounted on the stirring shaft Dental caries; vacuuming device built-in dust collector. The device has the advantages of simple structure and convenient operation, and the use of spiral teeth with different lengths and opposite spiral directions can not only stir the materials adhered together, but also uniformly mix the materials together, and can evenly heat the materials and accelerate drying. The speed, the drying quality is improved, and the dust collector used at the same time avoids the occurrence of material taking away when vacuuming, thereby improving the quality of the discharge.


2, lithium iron phosphate vacuum  dryer - working principle

Battery material horizontal agitating vacuum dryer is a device that uses the characteristics of water in the material to reduce the boiling point under vacuum. The equipment is indirectly heated by steam (hot water, heat transfer oil) to the jacket, and the water is evaporated by heat and is removed in time. Inside the dryer casing, the molars are driven by the drive shaft, and the ends of the teeth are designed to have an angle with the axis. The spindle rotates in the forward and reverse directions to move the material in the axial direction to facilitate drying and discharging. Two or four tapping rods can be added inside the casing to facilitate rapid drying and pulverization of the material. The striking rod is a hollow thick-walled stainless steel tube of the same length as the casing, which is freely movable inside the casing, and the striking rod continuously strikes the material inside, so that the material is continuously broken (the material obtains a larger specific surface area). ) to speed up the drying process, the finished material quality is better.