Flash Tank Buffering for Durable Laterite Nickel Leaching Heat Exchange
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Solution Overview
Problem
The existing flash tank structures for laterite nickel ore leaching suffer from deformation of the anti-collision plate due to the lack of a buffering structure, leading to a diminished buffering effect over time.
Innovation Solution
A combined heat exchange system with a buffering mechanism in the flash tank, featuring a buffering component with a central bulge and buffering tank, and a connecting structure with elastic frames, which cushions the impact of descending materials, reducing stress on the component and enhancing durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an anti-collision plate is suspended inside the flash tank to protect against material impact, then the flash tank is protected from direct impact damage, but the anti-collision plate itself deforms over time due to repeated impacts and loses its buffering effect
Solution Approach 1:
The patent introduces a buffering mechanism with elastic components (springs or rubber buffers) positioned between the anti-collision plate and the flash tank wall. This beforehand cushioning structure absorbs impact energy before it reaches the anti-collision plate, preventing the plate from deforming under repeated impacts while maintaining its protective function throughout the flash tank's operational life
Solution Approach 2:
The patent changes the physical parameters of the protection system by introducing elastic elements with specific buffering capacities. The elastic components are designed with appropriate stiffness and damping characteristics to absorb impact forces, transforming the rigid protection approach into a compliant system that maintains its protective capability over time
2Duration of action of stationary object
If a buffering mechanism with elastic frames is added to the flash tank structure, then the durability and impact resistance are improved, but the structural complexity increases
Solution Approach 1:
The buffering mechanism is segmented into distinct functional components: elastic frames, buffering elements (springs or rubber buffers), and mounting structures. This segmentation allows each component to be optimized independently for its specific function while simplifying the overall design and maintenance of the flash tank protection system
Solution Approach 2:
The patent employs flexible elastic frames and buffering elements that can deform elastically under impact loads. These flexible components absorb impact energy through controlled deformation, providing effective cushioning while maintaining a compact structure that does not significantly increase the overall complexity of the flash tank
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 buffering mechanism effectively minimizes deformation and prolongs the lifespan of the flash tank by counteracting the impact forces, ensuring resilience and optimal heat exchange efficiency.
Implementation Method 1
the buffering mechanism consists of a buffering component and a connecting structure... the buffering component has a buffering tank that is concave towards the connecting structure... fluid falling in the pressure relief chamber can pass over the surface of the central bulge and slide out from one end of the buffering tank to the other
Implementation Method 2
Flash evaporation refers to the process in which high-pressure slurry in a high-pressure reactor enters a lower-pressure container, and due to the sudden decrease in pressure, these slurries become saturated steam and saturated slurry under container pressure
Implementation Method 3
a combined heat exchange system of flash tank and preheater for laterite nickel ore leaching... flash tanks, which are connected to the discharge outlet of the high-pressure reactor, the flash tanks are also connected to the preheating towers through steam pipes
Data Source
AI summary
Disclosed is a combined heat exchange system of flash tank and preheater for laterite nickel ore leaching. The system comprises a high-pressure reactor, preheating towers, and flash tanks. The preheating tower is connected to the feed inlet of the high-pressure reactor. The flash tank is connected to the discharge outlet of the high-pressure reactor, and it is also connected to the preheating tower. Inside the flash tank, there is a pressure relief chamber and a buffering mechanism. The buffering mechanism comprises a buffering component and a connecting structure that are interconnected. In this disclosure, the buffering component of the pressure relief chamber is equipped with a central bulge and a buffering tank, materials falling from the pressure relief chamber can sequentially pass over the central bulge and slide from one end of the buffering tank to the other, then slide upwards out of the tank, achieving a buffering effect.