A sieving device for the electrode material of waste lithium ion battery after crushing

Abstract

The invention discloses a screening device for crushed waste lithium-ion battery electrode materials, which includes a housing, a material inlet is arranged in the middle of the upper end of the housing, a horizontal screen is installed in the inner cavity of the housing, and a vibrating screen is arranged below the screen. device, the shells above and below the screen are respectively provided with corresponding outlets; the shell includes a straight cylindrical sorting cylinder at the lower part, and a truncated cone-shaped top cover at the upper end, wherein the top cover and the sorting The cylinders are detachably connected, the material inlet is set in the middle of the top cover, and the inner wall of the sorting cylinder is provided with a screen installation structure for installing the screen. The screen installation structure includes a mounting ring installed horizontally on the inside of the housing. The inner side of the upper surface of the mounting ring is recessed to form a screen installation step, and the screen is detachably matched and installed in the screen installation step. The invention has the advantages of being able to improve the screening effect of the equipment, prolong the service life of the screen, improve the convenience of replacing the screen, and better improve the efficiency of electrode recovery and treatment.

Description

technical field [0001] The invention relates to the technical field of lithium battery recycling, in particular to a screening device for crushed waste lithium ion battery electrode materials. Background technique [0002] Today, lithium-ion batteries are used in a wide variety of devices and applications, from portable electronics to electric vehicles. Especially with the popularity of new energy electric vehicles, the application of lithium batteries is becoming more and more extensive. The core power component of new energy vehicles is lithium-ion batteries. The scrapping standard for lithium-ion batteries in new energy vehicles is that the battery capacity is less than 80%, which means that lithium-ion batteries need to be replaced every 3 to 5 years. If these scrap lithium-ion batteries produced by the development of the new energy automobile industry are not properly disposed of, they will cause great pollution to the environment and cause a great waste of rare metal ...

AI Technical Summary

Problems solved by technology

[0005] This existing electrode screening equipment and its screening method usually require repeated crushing and repeated screening to complete the treatment of a batch of raw electrode materials, which is inefficient and expensive, and mainly has the following defects: 1. Equipment use Generally, the crushed waste lithium battery electrode materials are directly poured into the sieve from the upper end of the shell for sorting, so that the materials basically fall on the middle of the sieve, and the structure of the middle of the sieve The strength is less than the structural strength of the edge part, and the material is often mixed with larger block materials due to the incomplete electrode broken, and the electrode material usually has a large specific gravity, so it is easy to cause deformation in the middle of the screen under long-term impact. damage

In the existing equipment, the screen is fixed on the shell by screws. When the screen is damaged, the upper part of the shell of the sorting equipment is generally disassembled, and then the bolts between the screen and the shell are loosened. , to replace the damaged screen in memory, such a replacement process is not only difficult but also slow

Therefore, the replacement of the screen will greatly increase the equipment cost and time cost

2. The electrode material of the waste lithium battery falls in the middle of the screen, and it is easy to cause the broken electrode material of the waste lithium battery to push in the middle of the screen, thereby affecting the efficiency and effect of the screening. If the screening effect is poor, it needs to be repeated more secondary crushing and screening, which further affects the efficiency of electrode recycling

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