Lithium battery recycling equipment is one of the best-selling products in the recycling industry. With societal advancements and rising recycling standards, SUNYGROUP has developed a new generation of lithium battery processing equipment capable of shredding batteries while they remain charged. The following are the requirements for the "charged shredding" of lithium batteries:
1. Prior to shredding, the nitrogen generator must be activated in advance to ensure that the oxygen concentration within the shredding chamber drops below 3%. Only then may charged lithium batteries be introduced. It is strictly prohibited to start the shredding equipment before this low-oxygen standard is met; otherwise, sparks generated by short circuits could come into contact with the air and trigger a fire.
2. During the shredding process, an inert gas (nitrogen or argon) must be continuously injected, and the oxygen concentration within the shredding chamber must be monitored in real-time. If the oxygen concentration exceeds the permissible limit (>3%), shredding operations must cease immediately; the flow rate of the inert gas should be increased, and operations may only resume once the oxygen concentration returns to a safe, compliant level.
3. Regular inspections of the nitrogen generator and gas delivery pipelines are required to ensure airtightness and prevent gas leaks that could lead to abnormal oxygen levels. Additionally, a sufficient reserve of inert gas must be maintained to prevent interruptions in the gas supply during shredding, thereby avoiding safety accidents.
4. The online temperature control system must remain active throughout the entire shredding process to monitor the temperature within the shredding chamber in real-time. A temperature threshold of 150°C should be established; if the temperature exceeds this threshold, shredding must stop immediately, the material feed must be cut off, and the inert gas flow rate must be increased. Operations may only resume once the temperature has dropped below 100°C and any potential hazards have been thoroughly investigated and resolved.
5. The exhaust gas purification system must be activated in advance to ensure that hazardous substances generated during shredding—such as electrolyte vapors, dust, and trace amounts of hydrogen fluoride—are properly purified before being discharged in compliance with environmental standards. Direct discharge is strictly prohibited, as it would pollute the environment and pose health risks to operating personnel.
6. The filter elements and adsorption materials within the exhaust gas purification system must be cleaned regularly to ensure effective purification performance. If any abnormalities are detected in the exhaust emissions (e.g., pungent odors or visible smoke), operations must cease immediately to allow for an inspection of the purification system for faults and the prompt resolution of any issues.
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