Actuator Controlled Inlet Deflectors for Uniform Particulate Flow
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Solution Overview
Problem
Conventional dedusting apparatuses face challenges in achieving uniform distribution of particulate material over wash decks, leading to incomplete cleaning and potential re-contamination, especially with increasing capacity, and often require rotary valves for material flow control.
Innovation Solution
The use of actuator-controlled inlet deflectors allows for balanced and uniform distribution of particulate material over opposing wash decks, eliminating the need for rotary valves and enabling selective termination of material flow, ensuring thorough cleaning and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional dedusting apparatuses use rotary valves for material flow control, then material flow can be regulated, but device complexity increases and maintenance requirements increase
Solution Approach 1:
The patent removes the rotary valve mechanism from the dedusting apparatus and replaces it with a simpler inlet deflector system. The flow control function is extracted from the complex rotary valve and implemented through adjustable deflectors that can be positioned to regulate material flow without requiring the mechanical complexity of rotary valves.
Solution Approach 2:
The inlet deflectors are designed as simple, easily replaceable components compared to robust rotary valves. These deflectors can be adjusted or replaced as needed without the maintenance burden of rotary valve mechanisms, aligning with the principle of using simpler, lower-maintenance components for flow control.
2Reliability
If particulate material flow is not uniformly distributed over wash decks, then cleaning effectiveness decreases, but achieving uniform distribution requires complex flow control mechanisms
Solution Approach 1:
The inlet opening is divided into multiple sections with individual adjustable deflectors for each section. This segmentation allows independent control of material flow to different areas of the wash deck, enabling uniform distribution without requiring a single complex flow control mechanism. Each deflector can be adjusted to optimize flow to its specific zone.
Solution Approach 2:
The inlet deflectors are designed to be adjustable rather than fixed, allowing dynamic modification of flow distribution patterns. This enables the system to adapt to different material flow conditions and achieve uniform distribution across the wash deck by adjusting deflector positions as needed during operation.
3Device complexity
If inlet deflectors are fixed in position, then device complexity is reduced, but adaptability to different flow conditions decreases
Solution Approach 1:
The inlet deflectors are designed with adjustability, allowing them to be repositioned according to different flow conditions and material characteristics. This dynamic capability provides adaptability while maintaining relatively simple deflector structures compared to complex rotary valve systems. The deflectors can be adjusted to optimize flow distribution for various operating conditions.
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 configuration ensures a fully loaded and balanced flow of particulate material over the wash decks, enhancing cleaning efficiency, reducing re-contamination, and simplifying the dedusting process by eliminating the need for rotary valves, while maintaining durability, low maintenance, and ease of assembly.
Implementation Method 1
particulate material is fed into a product inlet port at a top of a main housing. The flow of material is directed by gravity onto the wash decks
Implementation Method 2
A flow of air is fed into the housing through a clean air inlet opening to direct a flow of air through the wash decks to clean the flow of material
Implementation Method 3
A magnetic flux field is provided by a magnetic coil mounted at the inlet port so that the flow of material into the housing is subjected to the magnetic flux field to neutralize the static charges on the particulates
Data Source
AI summary
A dedusting apparatus is provided with movable inlet deflectors that are positionally controlled by actuators to vary the rate of flow of particulate material over the wash decks. The inlet deflectors are formed with a fixed member that extends between the front and rear walls of the dedusting apparatus and extends downwardly from the top wall to terminate in a spaced relationship to the surface of the wash decks. A movable member is operatively coupled to an actuator to overlie the fixed member and be movable to be adjacent the surface of the wash deck to terminate flow of material past the deflectors. Particulate material can accumulate above the wash decks and between the deflectors to fill the volume to the inlet opening to permit a full loading of flow over the full width of the wash decks when the deflectors are raised by the actuators.