A control system and method for a roasting system for pre-treating waste lithium batteries

By using the DCS system for sequential and interlocking control of the roasting system, the safety hazards caused by misoperation in traditional roasting systems have been solved, and the safe and reliable operation of the system has been achieved.

CN116481034BActive Publication Date: 2026-04-07ANHUI CONCH KAWASAKI ENERGY CONSERVATION EQUIPMENT MANUFACTURING CO LTD
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Patent Information

Application Number
CN202310426961.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-17
Publication Date
2026-04-07
Estimated Expiration
2043-04-17

AI Technical Summary

Technical Problem

Traditional roasting system control methods fail to effectively consider misoperation and safety regulations, resulting in a high risk of production safety accidents.

Method used

A DCS system is used to sequentially and interlock the various components of the roasting system to ensure the safe and reliable operation of the system. This includes the preheating subsystem, the air intake subsystem, the crushing subsystem, the cooling and conveying system, the hot blast stove system, and the water cooling control system for the output material of the roasting furnace.

Benefits of technology

By introducing a DCS system, the safe startup and operation of the calcination system can be achieved, avoiding safety hazards caused by misoperation and ensuring the safe and effective operation of the system.

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Abstract

This invention discloses a control system for a roasting system in the pretreatment of waste lithium batteries, including a preheating subsystem. The preheating subsystem includes a preheater, a preheater chain conveyor, a conveyor and processing device for the chain conveyor, an exhaust fan, an oxygen content sensor, and a DCS system. The outputs of the preheater chain conveyor, the conveyor and processing device for the chain conveyor, the exhaust fan, and the oxygen content sensor are connected to the DCS system. The DCS system controls the opening and closing of the preheater and the preheater chain conveyor based on status signals from these components. The output of the DCS system is connected to a hydraulic valve at the preheater outlet, used to control the valve to open and close according to a set time. By sequentially controlling the operation of each system, the safe and efficient operation of the roasting system is ensured.
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