Dynamic Gas Distribution in Steel Plant Complex
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Solution Overview
Problem
The existing steel production processes face inefficiencies in energy utilization and cost-effectiveness due to fluctuations in gas compositions and operational demands across different plant components, particularly in the integration of blast-furnace top gas, converter gas, and coke-oven gas for syngas production and electricity generation.
Innovation Solution
A plant complex is designed with a gas-conducting system that includes a controllable gas-distributing device, allowing for the parallel operation of power-generating, chemical, and biotechnological plants, where gas streams are dynamically allocated to minimize operational fluctuations, with gas conditioning and mixing of different gas components to optimize syngas production and biochemical processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If gas streams are allocated to multiple plants (power-generating, chemical, biotechnological) simultaneously, then energy utilization efficiency is improved, but operational complexity and difficulty of control increase
Solution Approach 1:
The patent implements a dynamic gas-distributing device that automatically adjusts gas stream allocation based on real-time operational demands and gas composition fluctuations. This dynamic control system optimizes energy utilization across multiple plants while managing operational complexity through automated adaptation rather than static manual control.
Solution Approach 2:
The gas-conducting system is designed with multi-functionality to serve power-generating, chemical, and biotechnological plants simultaneously. The system can dynamically route different gas compositions to different plants based on their current needs, making the gas distribution infrastructure universal and adaptable to various operational scenarios.
2Adaptability or versatility
If gas composition fluctuations are accommodated by multiple parallel plants, then operational flexibility is improved, but system complexity increases
Solution Approach 1:
The patent utilizes parameter changes in gas composition (CO, CO2, H2, N2 content) as the basis for dynamic allocation decisions. The gas-distributing device monitors composition parameters and redirects gas streams to appropriate plants based on current gas quality, thereby accommodating fluctuations and enhancing operational flexibility without requiring complex manual intervention.
Solution Approach 2:
The system incorporates feedback mechanisms where gas composition is continuously monitored and used to adjust the allocation decisions of the gas-distributing device. This closed-loop control enables the system to adapt to gas composition fluctuations automatically, improving operational flexibility while managing complexity through automated feedback-driven adjustments.
3Use of energy by moving object
If gas streams are dynamically reallocated to optimize energy use, then energy efficiency is improved, but operational stability decreases
Solution Approach 1:
The dynamic gas-distributing device balances energy optimization with operational stability by implementing controlled, gradual adjustments rather than abrupt reallocations. The system responds to changing conditions with smooth transitions that maintain stable operation while continuously optimizing energy utilization across the plant complex.
Solution Approach 2:
The system prepares for potential operational disruptions by implementing cushioning mechanisms that prevent extreme fluctuations in gas allocation. This ensures that dynamic reallocation for energy optimization does not compromise operational stability, as the system is预先 equipped to handle variations smoothly.
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
This approach enhances the cost-effectiveness of steel production by stabilizing chemical plant operations, increasing flexibility in responding to load changes, and optimizing energy use through flexible allocation of gas streams, reducing operational fluctuations and enhancing energy efficiency across the plant complex.
Implementation Method 1
The power-generating plant is operated with a gas that comprises at least a partial amount of the blast-furnace top gas that occurs in the blast furnace when producing the pig iron and/or a partial amount of the converter gas that occurs in the converter steel mill
Implementation Method 2
a controllable gas-distributing device, allowing for the parallel operation of power-generating, chemical, and biotechnological plants, where gas streams are dynamically allocated
Implementation Method 3
gas conditioning and mixing of different gas components to optimize syngas production
Data Source
AI summary
The invention relates to a plant complex for steel production comprising a blast furnace for producing pig iron, a converter steel mill for producing crude steel, a gas-conducting system for gases that occur when producing the pig iron and/or the crude steel, and a power-generating plant for electricity generation. The power-generating plant is designed as a gas-turbine power-generating plant or gas-turbine and steam-turbine power-generating plant and is operated with a gas that comprises at least a partial amount of the blast-furnace top gas that occurs in the blast furnace and/or a partial amount of the converter gas. The plant complex additionally comprises a chemical plant and a biotechnological plant, the power-generating plant, the chemical plant and the biotechnological plant being arranged in a parallel setup with regard to the gas supply. The gas-conducting system comprises an operationally controllable gas-distributing device for dividing the streams of gas.