Design And Research Of The Metamorphic Mechanism For Separating The Components Of Waste Lead-acid Batteries

Lead-acid battery is widely used in energy storage fields with its high cost performance high and low temperature performance.Lead-acid batteries are safe and reliable cells with numerous advantages.Generally speaking,the life span of Lead-acid battery cells last between 2-6 years.They are usually recycled after being scrapped.One of the procedures in recycling lead-acid battery is to flip the battery(ensuring that the cover is first removed)to 180°,then the dilute sulfuric acid electrolyte and the polar group were shaken out to achieve the separation of all components of waste lead-acid batteries in order to subsequently achieve the intended recycled by-product.At present,this process mainly relies on manual work.During the separation process of all components by manual flip,sulfuric acid and heavy metal lead are harmful to human body with big working intensity and low efficiency.A kind of reversed vibration metamorphic mechanism for the separation of all components of waste lead acid battery is designed according to the process of itself turning 180°and shaking off the electrolyte with the polar group.The specific research content is as follows:(1)The size and specification parameters of lead-acid batteries are analyzed to determine the maximum adaptive size of the mechanism.According to the whole component separation process,the motion requirement of the metamorphic mechanism was determined.The reversed vibration metamorphic mechanism is preliminarily created by the drawing method and the kinematics and dynamics analysis are carried on through analytical method.(2)The deterministic and robust optimization design process of the metamorphic mechanism is proposed and the optimization performance index and deterministic numerical optimization model are established.A variety of intelligent algorithms were selected for united optimization,and 5 groups of design candidates are selected.Then the grey relational decision is applied to the multi-objective decision problem of designing candidate solutions to obtain the deterministic optimal solution of the metamorphic mechanism.Considering the influence of noise and random disturbance factors on the mechanism,based on the deterministic optimization solution,6sigma robustness analysis and optimization are performed on the mechanism.(3)A parameterized virtual prototype is created to verify the correctness of the deterministic and robust optimization theory.A parametric finite element analysis model of the flip frame is established,and the size parameters with high significance are selected by the method of screening experiment design.The response surface model of the performance index of the turntable is established by using the central combined test design method and the response surface model is normalized to obtain the structure-optimized mathematic model of flip frame.Multi-island genetic algorithm is used to optimize the solution.From the optimization results,it can be seen that the strength and stiffness of the flipped frame have been improved and the purpose of lightening the flip frame is achieved at the same time which shows that the optimization effect of the structure is clearly visible.