Cooling Conveyor for Decoater Cyclone Dust
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Solution Overview
Problem
The dust discharged from decoating systems in metal recycling is prone to combustion and dust fires due to its high temperature and combustible content, and traditional methods of extinguishing these fires or disposing of the dust are costly and pose environmental and safety risks.
Innovation Solution
A cooling system that includes a sensor to measure dust characteristics and a cooling conveyor to cool the dust, with the ability to control the cooling rate based on measured characteristics, thereby reducing the risk of dust fires and minimizing the use of water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If water is used to wet the dust to make a slurry mixture, then the dust can be transported and disposed of, but the disposal cost increases and environmental safety issues arise
Solution Approach 1:
The patent changes the temperature parameter of the dust from high temperature (combustible state) to low temperature (safe state) through cooling, which fundamentally alters the safety characteristics and eliminates the need for water-based slurry formation, thereby avoiding environmental safety issues and disposal costs associated with water-containing waste
Solution Approach 2:
The patent converts the harmful high-temperature combustible dust into safe cool dust by utilizing cooling systems, transforming a hazardous material into a safe one for transport and disposal, thereby eliminating the need for expensive and environmentally problematic water-based disposal methods
2Reliability
If water is used to extinguish dust fires, then the fires can be suppressed, but the cost and environmental impact increase
Solution Approach 1:
The patent applies cooling to the dust immediately after it is generated and before it can ignite or cause harm, preventing the formation of combustible conditions in the first place. This preliminary cooling action eliminates the need for water-based fire suppression, thereby avoiding associated costs and environmental impacts
3Reliability
If the dust is cooled rapidly, then the safety risk is reduced, but the energy consumption increases
Solution Approach 1:
The patent employs dynamic cooling control where the cooling rate and intensity are adjusted based on real-time dust temperature and hazard assessment. This allows the system to apply maximum cooling when necessary and reduce cooling intensity when safe, optimizing the balance between safety and energy consumption
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 cooling system effectively reduces the temperature of the dust below its ignition point, preventing dust fires and allowing for safe further processing of the dust, while also minimizing water usage and associated costs and environmental concerns.
Implementation Method 1
at least one of the screw or the trough is internally cooled with a coolant
Implementation Method 2
the cooling conveyor may receive dust discharged from a dust cyclone of a decoating system and cool the dust at a cooling rate
Data Source
AI summary
A cooling system includes a sensor and a cooling conveyor. The sensor measures a dust characteristic of dust discharged from a dust cyclone of a decoating system. The cooling conveyor receives the dust from the dust cyclone and cools the dust at a cooling rate, and the cooling rate may be controlled based on the measured dust characteristic. A method of cooling dust from a dust cyclone of a decoating system with a cooling system includes measuring a dust characteristic of the dust discharged from the dust cyclone and into a cooling conveyor of the cooling system. The method also includes advancing the dust along the cooling conveyor and cooling the dust at a cooling rate based on the measured dust characteristic.