In today's era where environmental protection and resource recycling are trending, the field of spent lithium battery recycling is witnessing new technological breakthroughs. Among them, linear screens, as an important screening equipment, are gradually emerging and playing an indispensable role in the recycling process of spent lithium batteries.

Spent lithium batteries contain a large amount of recyclable valuable metals such as lithium, cobalt, and nickel, along with some substances harmful to the environment. Scientific and efficient recycling and treatment of them can not only realize the recycling of resources but also reduce environmental pollution. And linear screens play a key role in the precise screening and separation of materials in this complex recycling process.

In the recycling process, spent lithium batteries first undergo pre - treatment procedures such as crushing to disassemble the batteries into different material components. At this point, linear screens start to play an important role. For example, in the positive electrode sheet recycling link, the finely crushed materials are transported into the collector through airflow and then fall into the linear screen through the air - lock device. Through precise vibration screening, the linear screen can sift out the scattered positive electrode powder through the lower layer of the screen mesh, and at the same time, separate the plastic rubber and other impurities adhering to the positive electrode sheet through the upper layer of the screen mesh. The middle layer of the screen mesh sifts out another part of metal materials and undispersed positive electrode fragments, which can enter the next process for further treatment. In a spent lithium battery recycling factory, by using linear screens for the screening of positive electrode sheet materials, the recovery purity of the positive electrode powder has been significantly improved, providing high - quality raw materials for the subsequent metal extraction work.

In the negative electrode sheet recycling process, linear screens also perform excellently. After the crusher crushes the materials into small particles, they are transported to the collector through airflow and then enter the linear screen. The linear screen can sift out the scattered graphite powder through the lower layer of the screen mesh, while metals such as copper are sifted out through the upper layer of the screen mesh. The mixture of metal materials and graphite powder sifted out by the middle layer of the screen mesh can enter the subsequent process for further separation. This precise screening capability greatly improves the separation efficiency and purity of different materials in the negative electrode sheet recycling process.

Linear screens have many significant advantages in the recycling of spent lithium batteries. Their screening efficiency is high, reaching more than 96%, which can quickly and effectively screen a large number of materials, improving the overall efficiency of the recycling work. At the same time, linear screens adopt a fully enclosed structure design, which can effectively prevent dust from escaping, maintain a clean production environment, meet environmental protection requirements, and greatly reduce the dust pollution that may occur in the recycling process of spent lithium batteries. In addition, linear screens are easy to operate, with low maintenance costs, and the screen mesh can be replaced quickly, which only takes 3 to 5 minutes. This saves a lot of maintenance time and costs for recycling enterprises. Moreover, linear screens can be customized in terms of screen hole size, screen mesh material, and equipment size according to different recycling process requirements, showing strong flexibility and adaptability.

With the vigorous development of the new energy industry, the number of spent lithium batteries is increasing day by day, and the demand for efficient recycling technologies and equipment is becoming more and more urgent. Linear screens, relying on their excellent performance in the recycling process of spent lithium batteries, are becoming a powerful assistant for many recycling enterprises, contributing significantly to promoting the development of the spent lithium battery recycling industry and achieving the dual goals of resource recycling and environmental protection.