Cross Flow Air Separation Trajectory Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical air separation systems face challenges in accurately separating materials due to aerodynamic characteristics, air resistance, and turbulence, leading to materials unintentionally falling into the wrong bins, especially when dealing with lightweight and irregularly shaped objects like paper, cardboard, and Styrofoam.
Innovation Solution
A cross-flow air separation system is introduced, featuring a primary air ejection system perpendicular to the material flow for redirecting identified objects and a secondary cross air current system parallel to the material flow to reduce air resistance and turbulence, ensuring materials follow the intended trajectory path into the correct bins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a high pressure air nozzle is used to eject identified objects, then separation precision is improved, but air resistance and turbulence increase causing materials to unintentionally fall into the wrong bins
Solution Approach 1:
The air separation system is divided into two independent subsystems: a primary air ejection system for active separation of identified objects, and a secondary cross air current system for reducing air resistance and turbulence. This segmentation allows each subsystem to perform its specific function without interfering with the other, resolving the contradiction between separation precision and air resistance.
Solution Approach 2:
The secondary cross air current acts as an intermediary that mediates between the primary air ejection system and the projected materials. It creates a controlled airflow environment that reduces harmful air resistance and turbulence while allowing the primary system to maintain its separation precision.
2Productivity
If the primary air ejection system operates perpendicular to material flow, then object ejection efficiency is improved, but aerodynamic phenomena cause trajectory deviations
Solution Approach 1:
The system separates the ejection function (primary air nozzle perpendicular to flow) from the trajectory control function (secondary cross air current parallel to flow). This allows high-efficiency ejection while independently managing trajectory accuracy through the secondary system.
Solution Approach 2:
The secondary cross air current system preemptively counteracts aerodynamic phenomena by creating a controlled airflow that opposes air resistance and turbulence before they can cause significant trajectory deviations. This preliminary anti-action maintains trajectory accuracy while the primary system operates at high efficiency.
3Speed
If lightweight materials are projected along a trajectory path, then separation speed is improved, but aerodynamic characteristics cause unintentional bin placement errors
Solution Approach 1:
The secondary cross air current serves as a mediator that protects lightweight materials from harmful aerodynamic effects during their trajectory. It creates a favorable airflow environment that maintains separation speed while preventing placement errors.
Solution Approach 2:
The system changes the airflow parameters along the trajectory path by introducing a controlled cross air current that modifies the aerodynamic environment. This parameter change reduces air resistance and stabilizes the trajectory of lightweight materials, improving bin placement accuracy without sacrificing separation speed.
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 cross-flow air separation system effectively reduces air resistance and turbulence, enhancing the precision and accuracy of material separation by maintaining lightweight materials' aerodynamic characteristics and preventing deviations from the intended trajectory, thereby improving the consistency of material sorting into the correct bins.
Implementation Method 1
a second cross air current system is configured to generate a second airstream parallel to the material flow that reduces air resistance for the materials projected along the trajectory path
Implementation Method 2
The second airstream reduces certain aeronautic phenomena that would cause some of the projected materials to unintentionally fall into the wrong receiving bin
Implementation Method 3
Particular objects identified by the optical sensor are knocked out of their normal trajectory into a different near bin via a blast of air from a high pressure air nozzle
Data Source
AI summary
A cross-flow air separation system comprises a conveyor configured to project material out over an end of the conveyor generally along a trajectory path into a far receiving bin. An optical sensing system is configured to identify particular objects in the projected material. A first air ejection system is configured to generate a first airstream that ejects the identified objects from the trajectory path into a second near receiving bin. A second cross air current system is configured to generate a second airstream that reduces air resistance for the materials projected along the trajectory path. The second airstream reduces certain aeronautic phenomena that would cause some of the projected materials to unintentionally fall into the wrong receiving bin, thus creating a higher purity/less contaminated materiel stream into the near bin.