Iron Fuel Boiler Cooling for Non-Sintering Oxide Separation
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Solution Overview
Problem
Existing boiler processes are not suitable for efficient and efficient heat release and rust collection in iron fuel combustion, leading to inefficiencies and excessive maintenance requirements.
Innovation Solution
A boiler process that incorporates simultaneous heat-exchange and cooling during the transfer of an iron oxide containing medium, with controlled temperature management to ensure efficient separation and collection of rust (iron oxide) by maintaining it below the sintering temperature, using a heat-exchange medium like water or air, and a separation unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing boiler processes are used for iron fuel combustion, then the combustion can proceed, but heat release efficiency is insufficient and rust collection is inefficient
Solution Approach 1:
The process separates heat exchange and cooling functions into distinct stages. Heat exchange occurs first to maximize energy recovery, then cooling is applied separately to reduce iron oxide temperature below sintering point for efficient collection. This segmentation resolves the contradiction by optimizing each function independently rather than simultaneously.
Solution Approach 2:
Cooling action is applied preliminarily during the transfer phase before separation, ensuring iron oxide temperature is reduced below sintering temperature in advance. This preliminary cooling prevents particle aggregation and facilitates efficient rust collection while maintaining heat release efficiency from the prior heat exchange stage.
2Use of energy by moving object
If high temperature is maintained for heat release, then energy efficiency improves, but iron oxide particles sinter and become difficult to separate
Solution Approach 1:
The process employs periodic temperature control: high temperature phase for heat exchange to maximize energy efficiency, followed by a cooling phase to reduce temperature below sintering point for quality separation. This periodic alternation between high and low temperature states resolves the contradiction by applying appropriate temperature conditions at different stages.
Solution Approach 2:
Temperature parameter is dynamically changed throughout the process. Initially maintained high for efficient heat release and energy recovery, then deliberately reduced below the sintering temperature threshold to enable effective rust separation. This parameter transformation resolves the contradiction by adapting temperature to process requirements at each stage.
3Reliability
If cooling is applied to prevent sintering, then rust collection improves, but heat release efficiency decreases
Solution Approach 1:
The process segments the operational sequence into heat exchange phase (high temperature for efficiency) followed by cooling phase (lower temperature for collection). By separating these functions temporally, the system achieves both high heat release efficiency and effective rust collection without compromising either objective.
Solution Approach 2:
Cooling is applied as a preliminary action during the transfer phase before separation occurs, not during the heat exchange phase. This timing ensures heat release efficiency is maximized first, then rust collection is optimized subsequently, resolving the contradiction through proper sequencing of operations.
4Loss of energy
If iron oxide temperature is high for energy recovery, then heat exchange efficiency improves, but particle separation becomes difficult
Solution Approach 1:
Temperature is periodically adjusted: maintained high during heat exchange to minimize energy loss and maximize efficiency, then reduced below sintering temperature to facilitate easy particle separation. This periodic temperature management resolves the contradiction by applying appropriate thermal conditions at different process stages.
Solution Approach 2:
The temperature parameter is changed from high (for heat exchange efficiency) to low below sintering point (for separation ease). This parameter transformation enables the system to achieve both efficient energy recovery and easy rust collection by adapting temperature to the specific operational requirement at each stage.
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
Achieves high-quality separation and collection of iron oxide, optimizing the iron fuel process by allowing for higher quantity and quality recovery of rust for reuse, enhancing efficiency and reducing maintenance needs.
Implementation Method 1
combusting an iron fuel suspension medium comprising iron fuel and oxygen in an iron fuel burner arrangement to obtain an iron oxide containing medium
Implementation Method 2
exchanging heat between said iron oxide containing medium and a boiler of said iron fuel boiler arrangement with a heat-exchange medium during said transfer
Implementation Method 3
cooling said iron oxide containing medium by mixing the iron oxide containing medium with a cooling medium during said transfer
Data Source
AI summary
The present invention relates to an iron fuel boiler process for iron fuel combustion, comprising the steps of combusting an iron fuel suspension medium comprising iron fuel and oxygen in an iron fuel burner arrangement to obtain an iron oxide containing medium; receiving the iron oxide containing medium into an iron fuel boiler arrangement for transferring the iron oxide containing medium towards a separation unit disposed at the end of said iron fuel boiler arrangement; exchanging heat between the iron oxide containing medium and a boiler of the iron fuel boiler arrangement with a heat-exchange medium during the transfer of the iron oxide containing medium through said iron fuel boiler arrangement; and separating iron oxide from the oxide containing medium to obtain solid iron oxide particles and a gas flow. The process further comprising the step of cooling said iron oxide containing medium with a cooling medium during said transfer of the iron oxide containing medium through the iron fuel boiler arrangement such that a temperature of the iron oxide is achieved of below the sintering temperature of the particles at said separation unit.