Biogenic Refinery Moisture Control via Drag Chain Conveyor
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Solution Overview
Problem
Current technologies lack an efficient method to convert shredded sanitary products and human waste into biochar and similar products through pyrolysis, requiring effective processing and control systems to manage moisture and emissions.
Innovation Solution
A biogenic refinery system with pyrolysis pots, an auger conveyor system, and a control system that includes drag chain conveyor systems for shredding and drying feedstock, and a pollution control device to manage oxygen levels and emissions, ensuring continuous operation and optimized biochar production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If pyrolysis heating is applied to shredded sanitary products and human waste, then biochar production is achieved, but moisture control and emissions management become problematic
Solution Approach 1:
The patent converts harmful emissions and moisture from the pyrolysis process into beneficial outcomes by routing exhaust gases through heat exchangers that generate steam for drying feedstock. The pollution control device captures and condenses moisture, transforming what would be harmful emissions into useful drying energy and controlled water recovery.
Solution Approach 2:
The patent creates a controlled atmosphere within the combustion chamber and pollution control device to manage emissions. The system maintains specific oxygen levels and uses catalytic converters to neutralize harmful gases, transforming the combustion environment into a controlled inert-like atmosphere that minimizes harmful emissions while preserving biochar production.
2Productivity
If continuous operation is implemented for biochar production, then productivity increases, but system complexity and control requirements increase
Solution Approach 1:
The patent merges multiple functions into integrated systems: the drag chain conveyor system combines feeding, drying, and transport functions; the pollution control device integrates catalytic conversion, heat exchange, and moisture condensation; and the control system unifies monitoring of temperature, moisture, and emissions into a single coordinated platform that manages continuous operation.
Solution Approach 2:
The patent implements continuous operation through interconnected systems where feedstock is continuously fed, dried, and processed through pyrolysis while exhaust gases are continuously recirculated for drying. The control system maintains uninterrupted operation by automatically adjusting parameters to sustain optimal conditions throughout the process.
3Adaptability or versatility
If shredded sanitary products containing human waste are used as feedstock, then resource utilization improves, but processing difficulty and emissions increase
Solution Approach 1:
The patent transforms the harmful properties of human waste-containing feedstock into benefits by using the organic content as fuel for pyrolysis. The moisture and organic matter that would normally be problematic are converted into energy for the process and steam for drying, while the pollution control device captures and neutralizes harmful emissions.
Solution Approach 2:
The patent changes the physical and chemical parameters of the feedstock through controlled pyrolysis conditions. By adjusting temperature, residence time, and atmosphere composition, the system transforms complex organic waste into stable biochar while converting volatile harmful compounds into manageable emissions that are treated by the pollution control device.
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 converts sanitary products into biochar, controlling moisture and emissions, thereby enhancing biochar production volumes and reducing harmful exhaust emissions.
Implementation Method 1
a biogenic refinery configured to convert biogenic feedstock into a desired product through a pyrolysis heating process
Implementation Method 2
drag chain conveyor systems for conveying feedstock
Implementation Method 3
a pollution control device to manage oxygen levels and emissions
Data Source
AI summary
A biogenic refinery has a pyrolysis pot, an exhaust plenum, and a drag chain conveyor system having first and second drag chain conveyor portions. The first and second drag chain conveyor portions have a drying region disposed in the exhaust plenum with the second drag chain conveyor portion depositing feedstock in the pyrolysis pot. A control system includes a drive to control the drag chain conveyor system, a humidity sensor sensing moisture in the exhaust plenum, and a controller that receives a signal from the humidity sensor, compares the humidity sensor signal with the desired moisture level in the exhaust, and controls the drag chain conveyor system based upon a difference between the humidity sensor signal and the desired moisture level in the exhaust to control a rate of movement of the feedstock through the drying regions of the first and second drag chain conveyor portions.