Movable Magnet Reactor for Continuous Ferromagnetic Separation
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Solution Overview
Problem
Current magnetic separation techniques for ferromagnetic particles in suspensions are limited to batch processes, where ferromagnetic agglomerates adhere to the reactor wall and cannot be actively transported to a particle extractor, necessitating process interruption for extraction.
Innovation Solution
A device with a tubular reactor and movable magnets arranged outside, using a revolving feed device to generate a traveling magnetic field along the reactor length, allowing continuous separation and transport of ferromagnetic agglomerates to a particle extractor, where the magnetic field is weakened to release the particles for extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If magnets are fixed on the reactor wall to attract ferromagnetic particles, then separation effectiveness is improved, but the process becomes batch-based requiring interruption for extraction
Solution Approach 1:
The patent applies the dynamics principle by transforming the static magnet arrangement into a mobile system. Magnets are mounted on a conveyor mechanism that moves them along the reactor interior surface, enabling continuous attraction and transport of ferromagnetic particles without requiring process interruption. This dynamic configuration allows the magnetic field to follow the particles through the reactor length, resolving the contradiction between effective separation and continuous processing capability.
Solution Approach 2:
The patent implements continuity of useful action through the moving magnet system that maintains continuous contact with ferromagnetic particles throughout the reactor. The magnets travel along the reactor interior, continuously attracting and transporting particles to the discharge end without interruption, eliminating the batch process limitation while maintaining separation effectiveness throughout the entire reaction zone.
2Reliability
If ferromagnetic particles adhere to the reactor wall, then magnetic separation is achieved, but particles cannot be actively transported to the extractor
Solution Approach 1:
The moving magnet system actively transports particles along the reactor interior surface rather than relying on passive adhesion. The magnets convey ferromagnetic particles from the inlet region through the reaction zone to the discharge end, where particles are released at the extractor location. This dynamic transport mechanism solves the problem of active particle delivery to the extractor while maintaining effective magnetic separation.
Solution Approach 2:
The moving magnets serve as an intermediary mechanism between the magnetic attraction function and the particle transport function. Instead of particles passively adhering to the wall and requiring separate extraction operations, the magnets mediate both attraction and active transport along the reactor length, delivering particles directly to the extractor location for continuous removal.
3Device complexity
If magnets are stationary on the reactor wall, then simple construction is achieved, but throughput is limited by batch processing
Solution Approach 1:
The patent introduces dynamic movement to the magnet arrangement, transforming the simple stationary configuration into an active conveying system. Magnets move along the reactor interior on a conveyor mechanism, enabling continuous particle attraction and transport. This adds motion capability while maintaining relatively simple construction, resolving the contradiction between structural simplicity and throughput capability by enabling continuous rather than batch processing.
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
Enables continuous processing by actively transporting ferromagnetic agglomerates to the extractor, preventing adhesion to the reactor wall and allowing uninterrupted separation, thus improving throughput and efficiency.
Implementation Method 1
one or more magnets are provided, which generate a magnetic field that interacts with the ferromagnetic particles contained in the starting material and attract them
Implementation Method 2
the magnets can be moved along at least a part of the length of the reactor as far as the vicinity of a particle extractor by means of a revolving feed device
Data Source
AI summary
A device for separating ferromagnetic particles from a suspension has a tubular reactor and a plurality of magnets which are arranged outside the reactor, the magnets (9) being movable along at least a part of the length of the reactor (2) up to the vicinity of a particle extractor (5) by means of a rotary conveyor (8).