Blast Furnace Cooling Element with Integrated Reducing Gas Channels
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Solution Overview
Problem
Existing systems for introducing reducing gases into blast furnaces require additional components, which can complicate the process and reduce efficiency, and do not effectively address CO2 emission reduction in steel production.
Innovation Solution
A cooling element with integrated coolant channels and an additional channel for introducing reducing gases, such as hydrogen, directly into the blast furnace, which enhances cooling performance and reduces CO2 emissions by eliminating the need for extra components and optimizing gas introduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional components are installed to introduce reducing gases into the blast furnace, then the reducing gas injection function is achieved, but the device complexity increases and efficiency decreases
Solution Approach 1:
The patent combines the reducing gas injection function with the existing cooling element structure by integrating additional channels into the cooling element body. This merging approach allows the cooling element to perform both cooling and reducing gas injection functions simultaneously, eliminating the need for separate injection components and reducing overall system complexity.
Solution Approach 2:
The cooling element is designed to serve multiple functions: it maintains its primary cooling function through coolant channels while simultaneously providing reducing gas injection capability through additional channels. This multi-functionality transforms a single-purpose component into a dual-purpose device, improving adaptability without increasing device complexity.
2Object-generated harmful factors
If traditional cooling elements are used without integrated reducing gas channels, then the cooling function is simple and reliable, but CO2 emission reduction efficiency is limited
Solution Approach 1:
The patent merges the reducing gas injection function with the existing cooling element structure by integrating additional channels into the cooling element body. This merging approach allows the cooling element to perform both cooling and reducing gas injection functions simultaneously, eliminating the need for separate injection components and reducing overall system complexity.
Solution Approach 2:
The cooling element is designed to serve multiple functions: it maintains its primary cooling function through coolant channels while simultaneously providing reducing gas injection capability through additional channels. This multi-functionality transforms a single-purpose component into a dual-purpose device, improving adaptability without increasing device complexity.
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 integrated cooling and reducing gas channels improve efficiency by absorbing heat and ensuring reliable cooling, while reducing coke usage and CO2 emissions, with hydrogen as a preferred reducing gas, potentially reducing fossil fuel consumption by 1-20% and enhancing gas penetration into the furnace.
Implementation Method 1
The body is cast, for example, from copper, a copper alloy, or a comparable alloy with good thermal conductivity
Implementation Method 2
The heat contained in the warm/hot coolant is conducted either via heat exchangers or cooling towers to effect recooling
Data Source
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AI summary
The invention relates to a modified cooling element for use in a blast furnace, a blast furnace equipped with such a cooling element, and a method for operating a blast furnace.