Waste Collection Structure With Flow-Equalized Negative Pressure
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Solution Overview
Problem
Current waste collection methods for lithium ion cell electrode tabs, particularly the third method using a waste machine to suck and compress waste, often result in uneven negative pressure, causing material blockage and affecting collection efficiency.
Innovation Solution
A waste collecting device with a negative pressure flow-equalizing box and a waste compressing box, which includes a waste buffer box and a waste collecting box, ensures uniform gas flow and prevents blockage by equalizing gas pressure, allowing for smooth waste collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a waste machine is used to suck and compress waste, then waste collection efficiency is improved, but local negative pressure becomes too large causing material blockage
Solution Approach 1:
The waste collection system is divided into multiple chambers (first waste collecting chamber, second waste collecting chamber, and waste compressing chamber) with separate negative pressure control. This segmentation allows each chamber to maintain appropriate negative pressure levels independently, preventing excessive local negative pressure that causes blockage while maintaining overall collection efficiency.
Solution Approach 2:
A flow equalizing box is introduced as an intermediary component between the waste buffer box and the negative pressure pipeline. This intermediary equalizes the gas flow and moderates the negative pressure before it reaches the pipeline, preventing material blockage while maintaining effective waste suction.
2Speed
If negative pressure is increased to improve waste suction, then waste collection speed increases, but waste blocks the pipeline opening
Solution Approach 1:
The system uses dynamic control of negative pressure through separate suction pipelines for different chambers, allowing the negative pressure to be adjusted and optimized. The flow equalizing box dynamically balances the gas flow, ensuring sufficient suction speed without creating excessive negative pressure that would cause blockage.
Solution Approach 2:
Different chambers are provided with different negative pressure conditions tailored to their specific functions. The first and second waste collecting chambers have optimized negative pressure for efficient waste suction, while the waste compressing chamber has controlled pressure to prevent blockage during compression operations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device ensures balanced and uniform negative pressure, preventing waste from blocking the pipeline and ensuring continuous, efficient, and safe waste collection, with a simple structure and easy maintenance.
Implementation Method 1
the negative pressure flow-equalizing box is configured to equalize gas flowing in from the waste buffer box
Implementation Method 2
the negative pressure flow-equalizing box is configured to equalize gas flowing in from the waste buffer box
Implementation Method 3
the negative pressure pipeline is configured to draw out gas in the negative pressure flow-equalizing box
Implementation Method 4
the waste compressing box is configured to temporarily store the waste dropped from the waste buffer box and compress the waste
Data Source
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AI summary
Embodiments of the present application provide a waste collecting device (100), which relates to the technical field of lithium cell manufacturing. The waste collecting device comprises a frame (110), a waste buffer box (120), a negative pressure flow-equalizing box and a waste collecting box. The waste buffer box is arranged in an upper part of the frame and the waste buffer box is provided with a waste pipeline (170). The negative pressure flow-equalizing box is arranged on the top of the waste buffer box, the negative pressure flow-equalizing box is communicated with the waste buffer box, and the negative pressure flow-equalizing box is provided with a negative pressure pipeline. The waste collecting box is movably arranged in the lower part of the frame and is selectively communicated with the waste buffer box. Compared with the prior art, by additionally providing a negative pressure flow-equalizing box, the present application can realize the flow equalizing effect on the inflowing gas of the waste buffer box, and avoid that the local negative pressure in the negative pressure flow-equalizing box from being too large so as to make the waste adsorbed to the air inlet. Therefore, the problem that the air inlet of the negative pressure pipeline is blocked by the waste is avoided, and the smooth collection of the waste is ensured.