Vortex Waste Air Sorter with Impurity Separation
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Solution Overview
Problem
Conventional waste sorters are inefficient in removing impurities from waste, requiring separate processes and generating noise due to vibration, and are limited by the need for long screens for sorting, which increases complexity and cost.
Innovation Solution
A specific gravity-specific waste air sorter using a vortex formed by rotating drums and vanes to shake off impurities, with a screen conveyor and pulse air spray to separate low-specific gravity materials, and cutters to prevent string winding around drums.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional sorter with screens and vibrators is used to separate waste, then waste can be sorted by weight, but impurities stuck to waste cannot be shaken off and a separate removal process is required
Solution Approach 1:
The patent combines the impurity removal function with the waste sorting function into a single integrated system. The rotary drum with radially arranged vanes performs both tasks simultaneously: as waste moves along the inclined screen, the rotating drum hits the waste to shake off impurities while the screen separates materials by weight. This eliminates the need for separate impurity removal processes and reduces overall system complexity.
Solution Approach 2:
The rotary drum with radially arranged vanes serves multiple functions: it removes impurities by hitting the waste, creates a vortex to enhance separation, and assists in transporting waste along the screen. This multi-functional component replaces what would traditionally require separate dedicated devices for each function, thereby reducing device complexity while maintaining productivity.
2Productivity
If a screen conveyer with vibrator function is used, then impurities can be removed, but the screen conveyer undergoes wear and generates noise due to vibration
Solution Approach 1:
The patent replaces the traditional vibratory mechanism with a rotary drum system that uses rotational motion and centrifugal force to remove impurities. Instead of vibrating the screen to shake off impurities, the system uses a rotary drum with radially arranged vanes that rotates to hit the waste and create a vortex. This substitution eliminates the harmful vibrations, reducing noise and wear on the screen conveyer while maintaining effective impurity removal.
Solution Approach 2:
The patent uses controlled mechanical action through the rotating drum to create localized impact and vortex effects rather than continuous screen vibration. The radially arranged vanes on the rotating drum create periodic disturbances that effectively remove impurities without requiring the entire screen conveyer to vibrate, thereby reducing overall mechanical stress and noise generation.
3Productivity
If a long screen is used for waste sorting, then sorting can be performed effectively, but the machine becomes huge and expensive
Solution Approach 1:
The patent introduces a rotary drum with radially arranged vanes that creates a vortex motion in the waste stream. This rotational and vortex motion enhances the sorting effectiveness by improving material distribution and separation efficiency, allowing for shorter screen lengths to achieve the same sorting effectiveness that would require much longer straight screens in conventional systems.
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
Effectively sorts waste by weight, maximally separates impurities from waste, and prevents string winding, enhancing efficiency and reducing the need for additional processes and noise.
Implementation Method 1
hitting the input waste using rotary drums and vanes while the waste is overturned by a vortex
Implementation Method 2
the waste is overturned by a vortex
Implementation Method 3
causing the low-specific gravity material transported through a screen to be overturned and transported by air sprayed in a pulse form
Implementation Method 4
a screen conveyer formed like a net is disposed below the introduction port to be inclined
Data Source
AI summary
A specific gravity-specific waste air sorter separates impurities using a vortex for sorting waste into high-specific gravity materials, low-specific gravity materials, and impurities when the impurities are shaken off and removed by means of the hitting of a rotating drum and vanes while the waste fed therein is turned over by a vortex. A main drum has radial vanes, an upper auxiliary drum, and a lower auxiliary drum. The main drum is provided at one side of an input hole, the upper auxiliary drum is provided at the other side of the input hole, and the lower auxiliary drum is provided below the upper auxiliary drum. The main drum and the lower auxiliary drum rotate in the same direction, whereas the upper auxiliary drum rotates in the opposite direction. A vortex is formed between the main drum, the upper auxiliary drum, and the lower auxiliary drum.