Cyclone Separator Counter-Rotating Airflow for Blockage Prevention
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Solution Overview
Problem
Pneumatic material conveying systems face issues with lightweight and large-surface-area materials like paper and thin plastics ascending with the transporting air, causing blockages at the output aperture of separating devices, such as cyclone separators, which existing mechanical solutions have not adequately addressed.
Innovation Solution
The method involves reversing the circulation direction of the transporting air in the separating device's chamber space and output channel, using an output branch coupling arranged tangentially in the wall to guide the air flow opposite to its rotation direction, preventing the passage and blocking of waste particles into the output aperture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a cyclone separator is used to separate waste from transporting air, then separation efficiency is improved, but lightweight waste materials like paper and plastic can block the output aperture
Solution Approach 1:
The patent introduces a counter-rotating airflow generation device that creates an airflow rotating in the opposite direction to the main cyclone airflow. This counter-flow prevents lightweight waste materials from reaching the output aperture by pushing them back toward the separation zone, thereby resolving the blockage problem while maintaining high separation efficiency
Solution Approach 2:
The counter-rotating airflow acts as an intermediary force between the separating chamber and the output aperture. This intermediate airflow controls the movement of lightweight particles, preventing them from blocking the aperture while allowing separated air to pass through, thus resolving the contradiction between separation efficiency and reliability
2Reliability
If mechanical means like rotating brushes are used to prevent blockage, then output aperture reliability is improved, but device complexity increases
Solution Approach 1:
The patent replaces mechanical blockage prevention devices (such as rotating brushes) with a fluid dynamic solution - a counter-rotating airflow generated by a airflow generation device. This substitution eliminates complex mechanical components while achieving reliable blockage prevention through controlled airflow patterns
Solution Approach 2:
The invention uses pneumatic principles by introducing a counter-rotating airflow to control waste material movement. Instead of mechanical contact, the system uses air flow dynamics to prevent blockages, thereby reducing mechanical complexity while improving reliability
3Productivity
If lightweight waste materials are conveyed with transporting air, then conveying capability is improved, but separation difficulty increases
Solution Approach 1:
The patent dynamically controls the airflow patterns within the separating device by introducing a counter-rotating flow. This dynamic airflow control allows the system to maintain conveying capability for lightweight materials while improving separation efficiency through controlled interaction between the counter-flow and the waste particles
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
This approach significantly enhances the operational reliability of pneumatic waste conveying systems by preventing blockages and improving separation efficiency in a cost-effective manner.
Implementation Method 1
a rotating movement is achieved in the separating chamber and the transporting air and waste to be separated circulate in the separating device typically near the walls, in which case the heavier waste remains in the separating device and the transporting air rises upwards from the center of the cyclone separator
Implementation Method 2
The wastes transfer from the input point along the piping together with the transporting air into a separating device, which is e.g. a cyclone separator
Data Source
Figure 1~2
AI summary
Method for improving the separating efficiency of a separating device (1 ) of a pneumatic material conveying system, such as of a waste conveying system, in which the material to be transported, such as waste material (w), is separated from the transporting air (a), and/or for preventing blocking of the output aperture for the transporting air of the separating device, in which method the transporting air and the material coming with it (w+a) are initially brought into a rotating movement (ar1) in the chamber space (10) of the separating device, the transporting air (a) is deflected in the chamber space (10) of the separating device, and is conducted into the output channel (13). In the method the flow of transporting air is acted upon in the chamber space (10) of the separating device or in the output channel (13) by bringing about a guiding effect for the transporting air in the opposite direction with respect to its direction of rotation (ar1). The invention also relates to an apparatus.