Self-Adaptive Converter Hanging Structure for Stable Tilting
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Solution Overview
Problem
Existing converter suspension systems face challenges in supporting large-tonnage converters during non-vertical operations, leading to alternating misalignment displacement, excessive wear, and maintenance issues due to complex and over-constrained designs.
Innovation Solution
A self-adaptive hanging structure with strategically positioned vertical and horizontal connecting rod mechanisms, where horizontal connecting rod mechanisms are placed above vertical ones, forming specific included angles to minimize misalignment displacement and reduce maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If horizontal connecting rod mechanisms are positioned near the backing ring of the trunnion to provide horizontal support during tilting, then the converter can maintain stability during non-vertical operation, but the horizontal connecting rod mechanism is subjected to severe bending and torsional effects causing alternating misalignment displacement of 7-15mm that exceeds its adaptive capacity
Solution Approach 1:
The patent extracts the problematic horizontal connecting rod mechanism from its traditional position near the backing ring and replaces it with a blocking seat mechanism positioned at the furnace shell. This removes the source of bending and torsional stresses while maintaining the horizontal support function through the blocking seat's interaction with the furnace shell during tilting operations.
Solution Approach 2:
The patent introduces a blocking seat mechanism as an intermediary element between the furnace shell and the suspension system. This blocking seat acts as a mediator that provides horizontal support during tilting through controlled interaction with the furnace shell, avoiding the direct transmission of bending and torsional forces to the connecting rod mechanism.
2Stability of the object's composition
If blocking seat mechanisms are positioned to limit converter shell movement during tilting, then horizontal support is provided, but alternating elastic slip occurs between the furnace shell blocking seat and the support seat causing friction, wear, impact, and abnormal noise
Solution Approach 1:
The patent applies dynamics by allowing the blocking seat mechanism to move adaptively with the furnace shell during tilting operations. The blocking seat is positioned to engage and disengage naturally based on the converter's operational position, creating a dynamic system that eliminates alternating elastic slip while maintaining horizontal support stability.
Solution Approach 2:
The patent changes the operational parameters of the blocking seat mechanism by positioning it to work in conjunction with the furnace shell's movement rather than resisting it. The blocking seat's engagement depth and position are optimized to maintain continuous contact without causing elastic slip, thereby eliminating friction, wear, and impact forces.
3Force
If multiple connecting rod mechanisms are arranged to provide both vertical and horizontal support, then the suspension system can handle large-tonnage converters, but the system becomes super statically over constrained requiring complex maintenance and part replacement
Solution Approach 1:
The patent removes the problematic horizontal connecting rod mechanism from the suspension system and replaces it with a simplified blocking seat mechanism. This extraction reduces the number of moving parts and eliminates the need for complex maintenance while preserving the horizontal support function through the blocking seat's interaction with the furnace shell.
Solution Approach 2:
The blocking seat mechanism serves multiple functions: it provides horizontal support during tilting, limits excessive movement of the furnace shell, and acts as a positioning reference for the converter. This multi-functionality reduces the overall complexity of the suspension system while maintaining load-bearing capacity for large-tonnage converters.
Data Source
AI summary
The invention discloses a self-adaptive hanging structure of a converter, including vertical connecting rod mechanisms connecting the lower edge of a backing ring body and a lower half converter body of the converter, and horizontal connecting rod mechanisms connecting the upper edge of the backing ring body and an upper half converter body of the converter; the horizontal connecting rod mechanisms are located above the vertical connecting rod mechanisms, the plane where the axis of a trunnion on the backing ring body and the axis of the backing ring body are located serves as the first reference plane, the symmetric center of each vertical connecting rod mechanisms is located in the radiation area of the first included angle, the two planes forming the first included angle coincide with the axis of the backing ring body, and the included angles being 15 degrees and 50 degrees are formed between the two planes and the first reference plane respectively. The invention makes the converter tilting without abnormal noise and running stably, which not only eliminates the super-static over-constraining problem, but also facilitates the converter suspension connecting rod mechanism to adapt to the working conditions, improves the service life of the hanging mechanism, makes the equipment long-term maintenance-free, realizes the main parts interchanging of the connecting rod mechanism, reduces equipment spare parts and equipment maintenance workload.