Silo Dust Collection via Vacuum Conduit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional silo dust collection methods fail to effectively control dust emissions during the transfer of granular materials, posing health hazards to workers and inefficiently managing air and dust streams.
Innovation Solution
A granular material storage silo system that utilizes a sealed housing and vacuum conduit to capture dust by creating a vacuum when material is drawn out, using the loading conduit as part of the vacuum conduit to draw air and dust back into the silo, with optional exhaust fans to enhance airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If dust is vented out into the atmosphere with the air stream, then the dust collection system is simple, but worker health is compromised and dust emissions increase
Solution Approach 1:
The invention converts the harmful dust-laden air stream into a beneficial process by using the air stream itself to transport dust through the loading conduit back into the silo. The air stream that would normally carry dust outward is instead harnessed to deliver dust back to storage, transforming a harmful emission pathway into a useful dust recovery mechanism.
Solution Approach 2:
The loading conduit serves as an intermediary element that facilitates dust recovery. Instead of directly venting dust to the atmosphere, the loading conduit acts as a mediator to channel the air stream and dust mixture back into the silo interior, where dust can be contained and managed more effectively.
2Reliability
If vent covers are closed to prevent air movement into the silo, then dust collection efficiency improves, but material discharge may be affected
Solution Approach 1:
The vent covers are made dynamically controllable, allowing operators to adjust their position based on operational requirements. During dust collection operations, the vent covers can be closed to maximize dust recovery efficiency. During material discharge operations, the vent covers can be opened to maintain proper air flow and discharge rates, thus adapting the system behavior to match the operational mode.
Solution Approach 2:
The system allows for preliminary configuration of vent cover positions before operational sequences begin. By pre-positioning vent covers in appropriate states (open or closed) based on the intended operation type, the system ensures optimal conditions are established beforehand, avoiding the need for mid-operation adjustments that could disrupt material flow.
3Device complexity
If the loading conduit is used as part of the vacuum conduit, then device complexity is reduced, but the conduit must serve dual functions
Solution Approach 1:
The loading conduit is designed with multi-functionality, serving both as the primary conduit for pneumatic material transfer and as part of the vacuum conduit system for dust collection. By making the same physical conduit capable of handling both material loading and dust evacuation functions, the system reduces overall component count and simplifies the dust collection infrastructure.
Solution Approach 2:
The loading conduit incorporates dynamic control mechanisms that allow it to switch between different functional modes. During material loading operations, the conduit facilitates pneumatic transfer. During dust collection operations, the same conduit is configured to part of the vacuum system, with control valves and switches that dynamically reconfigure the airflow paths to match the operational requirements.
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 collects and contains dust emissions during material transfer, improving worker safety and reducing atmospheric dust, while leveraging existing silo infrastructure for efficient operation.
Implementation Method 1
granular material flowing out the discharge opening creates a vacuum in the upper portion of the silo above the granular material therein and draws air and dust from the housing into the vacuum conduit and through the vacuum conduit into the upper portion of the silo
Implementation Method 2
The air stream flow can be increased by adding an exhaust fan to draw more air out of the silo above the granular material
Data Source
AI summary
Granular material flows out through the discharge opening of a silo and through a sealed housing to a target location. A vent opening in a top portion of the silo has a vent cover operative to selectively open and close the vent opening. When the vent cover is closed, air movement into an upper portion of the silo is prevented. A gate is operative to control a flow of granular material through the discharge opening. A vacuum conduit has a lower input end thereof connected to an interior of the housing, and an upper output end thereof located in an upper portion of an interior of the silo. Material flowing out of the silo creates a vacuum drawing dust from the housing up the vacuum conduit into the silo.