Rotary Sintering Furnace Sliding Supports for Thermal Expansion
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Solution Overview
Problem
Large-scale rotary furnaces used in lithium iron phosphate sintering face challenges in maintaining operational stability due to complex structure and deformation issues, affecting support and feeding stability.
Innovation Solution
A sintering furnace design with a furnace head cover, sliding support structure, and flexible connection pipe that adapts to expansion or contraction deformations, ensuring stable support and feeding by allowing the furnace head cover and body to slide together, while maintaining a sealed environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a large-scale rotary furnace is used for high-temperature solid-phase reaction of lithium iron phosphate, then production capacity and product stability are improved, but structural complexity increases and operational stability becomes difficult to maintain
Solution Approach 1:
The furnace body is divided into multiple furnace segments that can expand and contract independently along the axial direction. Each segment is supported by sliding support structures, allowing the large-scale furnace to be managed as modular units, reducing overall structural complexity while maintaining high production capacity
Solution Approach 2:
The sliding support structures enable dynamic adaptation to thermal expansion and contraction of the furnace body during operation. The supports can slide along the furnace segments, providing continuous support while accommodating dimensional changes, thus maintaining operational stability despite the large scale and complexity of the furnace
2Temperature
If the furnace body undergoes expansion or contraction deformation during operation, then thermal response is improved, but support stability and feeding stability deteriorate
Solution Approach 1:
The sliding support structures are designed to move dynamically in response to furnace body deformation. As the furnace expands or contracts thermally, the sliding supports adjust their positions accordingly, maintaining continuous stable support and preventing detachment that would compromise reliability
Solution Approach 2:
The system accepts and adapts to parameter changes in furnace dimensions during operation. The sliding support structures are configured to accommodate axial displacement caused by thermal expansion and contraction, ensuring that support stability is maintained throughout the temperature cycle
3Temperature
If the furnace body undergoes expansion or contraction deformation, then thermal processing capability is improved, but feeding stability deteriorates due to potential detachment
Solution Approach 1:
The feeding device incorporates flexible connection pipes that can deform and extend dynamically as the furnace body expands or contracts. This flexibility ensures continuous material feeding without interruption or detachment, maintaining feeding stability throughout thermal processing cycles
Solution Approach 2:
The feeding system uses flexible connection pipes instead of rigid conduits. These flexible pipes can accommodate the dimensional changes of the furnace body during thermal processing, preventing detachment and ensuring stable material delivery to the sintering zone
4Ease of operation
If multiple holes are provided in the furnace body for material entry, then feeding flexibility is improved, but thermal insulation deteriorates
Solution Approach 1:
The feed inlet is extracted from the furnace body and relocated to the furnace head cover. This allows material to be fed through the furnace head cover into the sintering zone, eliminating the need for holes in the furnace body walls and preserving thermal insulation while maintaining feeding flexibility
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
Enhances structural and feeding stability, reduces the risk of detachment and seal failure, and improves thermal insulation by minimizing holes in the furnace body, thereby maintaining high-temperature sintering conditions.
Implementation Method 1
the sintering furnace can adapt to an expansion or contraction deformation of the furnace body
Implementation Method 2
the flexible connection pipe can deform with a deformation of the furnace body to avoid a structural detachment or damage
Data Source
AI summary
Provided is a sintering furnace. The sintering furnace includes: a furnace body and a furnace head cover having a feed inlet, the furnace head cover covering a furnace head of the furnace body, the furnace head cover being axially limited relative to the furnace head, the furnace body being rotatable around a central axis relative to the furnace head cover, and the feed inlet being in communication with an interior of the furnace body; a sliding support structure including a first sliding structure configured to support the furnace head cover, the furnace head cover being fixedly connected to the first sliding structure, and the first sliding structure being slidably arranged in a length direction of the furnace body; and a feeding device in communication with the feed inlet through a flexible connection pipe.