Dust Control Damper for Bulk Material Discharge
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Solution Overview
Problem
Existing bulk material handling systems for oil and gas well operations and other applications suffer from significant dust generation and material spillage during the transfer of dry bulk materials from portable containers to blender units, leading to inefficiencies and environmental concerns.
Innovation Solution
A bulk material handling system with a portable support structure and integrated dust control system, featuring gravity-fed outlets and dust control dampers or self-sealing shrouds, which minimize dust release by sealing the discharge area during material transfer and using a vacuum system to reclaim dust, allowing direct and controlled flow of bulk materials into blender units without auxiliary power-dependent mechanical conveyance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bulk material is transferred from portable containers using mechanical conveying systems, then material transfer capability is improved, but dust generation and material spillage increase
Solution Approach 1:
The dust control damper extracts and isolates the dust-generating discharge area from the surrounding environment. By placing a sealable barrier at the container outlet, the system captures dust at its source during material transfer, preventing it from dispersing into the workspace while maintaining continuous material flow capability.
Solution Approach 2:
The dust control damper acts as an intermediary component between the container outlet and the environment. This mediator device provides a controlled interface that allows material passage while blocking dust escape, serving as a bridge that reconciles the need for material transfer with the need for dust containment.
2Object-generated harmful factors
If dust control dampers are used to seal discharge areas, then dust emission is reduced, but material flow may be restricted
Solution Approach 1:
The dust control damper incorporates dynamic sealing elements that adapt to material flow conditions. The damper design allows it to remain sealed during idle periods to prevent dust emission, while automatically opening or creating a flow path when material is being discharged, thus maintaining both dust control and material flow productivity.
Solution Approach 2:
The damper utilizes flexible sealing components that can deform and conform to the flow of bulk material. These flexible elements maintain an airtight seal when closed to prevent dust emission, but can be displaced or opened to accommodate material passage, ensuring both dust control and uninterrupted material flow.
3Object-generated harmful factors
If vacuum systems are added to reclaim dust, then environmental safety is improved, but system complexity increases
Solution Approach 1:
The vacuum system is merged with the existing dust control damper structure, combining dust containment and dust reclamation functions into a single integrated unit. This integration allows the vacuum to draw dust directly from the sealed discharge area through the damper, eliminating the need for separate dust collection equipment and reducing overall system complexity.
Solution Approach 2:
The vacuum system utilizes pneumatic principles to create negative pressure that draws dust particles through the sealed damper and into collection containers. This pneumatic approach provides an efficient, automated method for dust reclamation that requires minimal mechanical moving parts, thereby limiting the increase in system complexity while significantly improving environmental safety.
4Object-generated harmful factors
If self-sealing shrouds are used at container discharges, then dust containment is improved, but ease of operation decreases
Solution Approach 1:
The self-sealing shroud is designed to automatically seal and unseal based on material flow conditions without requiring manual intervention. The shroud utilizes the pressure differential created during material discharge to automatically open, and seals automatically when discharge stops, providing self-service dust containment that maintains ease of operation while improving dust containment effectiveness.
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 effectively reduces dust emission and material spillage, enhancing operational efficiency and environmental safety by ensuring a controlled, dust-free transfer of bulk materials directly into blender units, eliminating the need for auxiliary power-dependent mechanical conveyance systems.
Implementation Method 1
using a vacuum system to reclaim dust
Implementation Method 2
sealing the discharge area during material transfer
Data Source
AI summary
Controlling the dust emissions from the discharge of bulk materials from a container provides many benefits. A support structure may include a plurality of outlets or chutes for discharging the bulk material. A dust control damper coupled to the outlets not currently in use for the discharge of bulk material may prevent dust from escaping into the surrounding air. The dust control dampers may automatically transition between a closed position and an open position. A flexibly collapsible shroud may also be coupled to a discharge gate of a container. The shroud may expand to seal against the outlet when bulk material is discharge. A vacuum system at or near an outlet may reclaim any dust that escapes during discharge of the bulk material.