Rotary classifying screen with de-magnetism function

Abstract

The invention provides a rotary classifying screen with a de-magnetism function. The rotary classifying screen comprises a machine frame, a classifying device and de-magnetism devices. The classifying device comprises a power mechanism and a classifying mechanism. The power mechanism drives the classifying mechanism to operate. The classifying mechanism comprises a screen barrel and a screen body. A feeding hopper is arranged on the top of the screen barrel. An elastic supporting plate is arranged at the bottom of the screen barrel. The screen body is arranged inside the screen barrel. The screen body comprises a first screen face and a second screen face. The pore diameter of the first screen face is larger than that of the second screen face. A first discharging outlet, a second discharging outlet and a third discharging outlet are arranged in the lower sides, corresponding to the three regions partitioned by the two screen faces and the screen barrel, of the screen barrel. Each discharging outlet is correspondingly provided with a valve. The three regions partitioned by the two screen faces and the screen barrel are each provided with one de-magnetism device. Each de-magnetism device comprises a drawer-type frame and a plurality of magnetic rods. The screening process is stable, the classifying efficiency is high, the service life is long, de-magnetism is performed while screening is performed, the technological steps are simplified, the working efficiency is high, and economic benefits are good.

Description

technical field [0001] The invention belongs to the field of lithium battery materials and related fields, in particular to a rotary classifying sieve with demagnetization function. Background technique [0002] Lithium-ion batteries have the advantages of high voltage, high specific energy, many cycle times, and long storage time. They are not only widely used in portable devices such as mobile phones, digital cameras, and laptop computers, but also widely used in electric vehicles and electric bicycles. As well as large and medium-sized electric equipment such as electric tools, the performance requirements of lithium-ion batteries are getting higher and higher. [0003] Electrode materials are an important part of lithium-ion batteries and the core of lithium-ion batteries. But it also has obvious disadvantages: poor compatibility with the electrolyte, poor high-current charge and discharge performance, and the graphite layer peels off due to the co-embedding of solvent ...

AI Technical Summary

Problems solved by technology

But it also has obvious disadvantages: poor compatibility with the electrolyte, poor high-current charge and discharge performance, and the graphite layer peels off due to the co-embedding of solvent molecules during the first charge and discharge, resulting in reduced electrode life.

[0005] The existing treatment method is generally to use a special demagnetizer to carry out a demagnetization process. This process needs to increase production equipment and manpower. The structure of the applied demagnetizer is complex, which increases the production cost and reduces the production efficiency.

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