Rotary Screen Separator Air Cleaning System
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Solution Overview
Problem
Rotary screen separators face inefficiencies in removing solids and water from feed materials, leading to interference with the separation process due to accumulated debris on the screens.
Innovation Solution
A cleaning system comprising a housing, air source, and conduit system that directs an air flow stream to impinge on the screen, removing debris, integrated with a rotary screen separator that includes a drive system and vane structures to process feed materials with varying perforation regions for efficient separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If rotary screen separators are used to separate effluent into solid and liquid components, then separation of solids from liquids is achieved, but solids accumulate on the screen and interfere with the separation process
Solution Approach 1:
The cleaning system performs preliminary action by removing solids from the screen surface before they can accumulate and interfere with the separation process. The air nozzle directs a stream of air at the screen to blow accumulated solids off the screen surface, maintaining screen performance and preventing interference with solid-liquid separation.
Solution Approach 2:
The system implements self-service through automatic cleaning operation. The cleaning system is operated in response to detection of accumulated solids, allowing the separator to clean itself without external intervention. This maintains continuous separation efficiency while removing accumulated solids that would otherwise degrade screen performance.
2Strength
If solids accumulate on the screen, then the screen structure remains intact, but the separation process is interfered with and efficiency decreases
Solution Approach 1:
The cleaning system performs preliminary action by removing solids from the screen surface before they can accumulate and interfere with the separation process. The air nozzle directs a stream of air at the screen to blow accumulated solids off the screen surface, maintaining screen performance and preventing interference with solid-liquid separation.
Solution Approach 2:
The system implements self-service through automatic cleaning operation. The cleaning system is operated in response to detection of accumulated solids, allowing the separator to clean itself without external intervention. This maintains continuous separation efficiency while removing accumulated solids that would otherwise degrade screen performance.
3Productivity
If a cleaning system is added to remove debris from the screen, then screen cleanliness is improved and separation efficiency increases, but device complexity increases
Solution Approach 1:
The cleaning function is extracted as a separate, independent system from the main separation mechanism. The air nozzle and air source are distinct components that can be added or removed without affecting the core screen separation process. This modular approach allows the cleaning function to be integrated while maintaining simplicity of the overall system.
Solution Approach 2:
Air is used as an intermediary substance to transfer the cleaning action from the air nozzle to the screen surface. Rather than using mechanical contact or liquid cleaners that would add complexity, compressed air serves as a clean, simple mediator that removes solids without contaminating the effluent or requiring additional handling 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
The system enhances the efficiency of solid and water removal, optimizing the separation process by maintaining screen cleanliness and processing feed materials at a faster rate with improved separation efficiency.
Implementation Method 1
Air flows from the air source through conduit system, through the inlet opening, into the housing chamber, and out of the housing chamber through the at least one outlet slot in at least one air flow stream extending along a flow plane. The housing is arranged relative to the screen of the rotatory screen separator such that the air flow stream impinges on the screen to remove debris from the screen.
Data Source
AI summary
A cleaning system for a screen of a rotary screen separator for processing feed material comprising liquids and solids has a housing, an air source, and a conduit system. The housing defines at least one housing chamber, at least one inlet opening, and at least one outlet slot. The conduit system is operatively connected between the inlet opening of the housing and the air source. Air flows from the air source through conduit system, through the inlet opening, into the housing chamber, and out of the housing chamber through the at least one outlet slot in at least one air flow stream extending along a flow plane. The housing is arranged relative to the screen of the rotatory screen separator such that the air flow stream impinges on the screen to remove debris from the screen.