Stilling Shed Curtain Baffles for Truck Dumper Dust Control
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Solution Overview
Problem
The uncontrolled dust generated during the dumping of woodchips or biomass by truck dumpers poses environmental and safety hazards, including the risk of spontaneous combustion and dust explosions, particularly in power plants where water-based dust control methods are undesirable due to moisture content and combustion issues.
Innovation Solution
A truck dumper dust control system comprising a tilt table, receiving hopper, stilling shed, and dusty air exhaust system, which includes curtain baffles to contain dust, an articulated hydraulic arm for stuck biomass, and a bag house for filtration, designed to minimize dust dispersion and capture wood dust effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If water-based dust control methods are used, then dust dispersion is reduced, but biomass moisture content increases causing combustion issues
Solution Approach 1:
The harmful dust is extracted and separated from the biomass material through the dust collection system, allowing dust control without adding moisture to the biomass. The system extracts dust particles from the air stream using filtration elements while the cleaned air is discharged.
Solution Approach 2:
A dust collection system with filtration elements serves as an intermediary between the dumping process and the environment, capturing dust particles before they disperse while allowing the biomass to remain dry and suitable for combustion.
2Productivity
If truck bed is raised to extreme angle for dumping, then woodchips are successfully unloaded, but risk of truck bed toppling increases creating safety hazard
Solution Approach 1:
The dumping function is segmented from the truck bed itself to a separate dumper device. The truck bed only needs to tilt to a safe, stable angle to position material on the dumper, while the dumper then handles the extreme angle dumping operation independently.
Solution Approach 2:
The dumper device acts as an intermediary between the truck bed and the ground, receiving material from the truck at a safe angle and then performing the extreme angle dumping operation separately, eliminating the safety hazard of raising the truck bed to extreme angles.
3Device complexity
If dust is not controlled during dumping, then system complexity is minimized, but environmental hazards and risk of spontaneous combustion increase
Solution Approach 1:
The dust collection system captures dust particles that would otherwise be harmful, converting the potentially dangerous dust cloud into a controlled filtration process. The filtered dust can be disposed of safely, and the cleaned air is discharged back to the environment.
Solution Approach 2:
The dust collection system creates a controlled environment during dumping, containing dust particles within the collection system rather than allowing them to disperse into the surrounding atmosphere, thereby protecting the environment from harmful dust exposure.
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 controls dust dispersion, reduces the risk of spontaneous combustion and dust explosions, and captures wood dust efficiently, ensuring worker safety and environmental protection while maintaining biomass suitability for energy production.
Implementation Method 1
a bag house for filtration
Data Source
AI summary
A truck dumper including a material receiving hopper, a tilt table configured to dump a load from the truck or truck trailer into the material receiving hopper. The invention includes a stilling shed positioned above the material receiving hopper and at least one curtain baffle suspended below the roof of the stilling shed. The curtain baffles are positioned such that there is a gap located near the roof and an upper margin of the at least one curtain baffle through which air can flow. The invention further includes an air exhaust structure configured to exhaust dust laden air from the interior of the stilling shed.