Replaceable Inner Drum Separator for Hygienic Centrifugal Processing
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Solution Overview
Problem
Existing centrifugal separators face challenges in improving running properties and handling, particularly in maintaining hygiene and reducing the need for extensive cleaning during continuous operation, especially when processing pharmaceutical products like fermentation broths.
Innovation Solution
A centrifugal separator design featuring a rotatable drum with an inner drum and outer support device, where the inner drum is a replaceable module made of plastic or plastic composite material, and the outer drum is made of metal, providing stabilization and ease of assembly/disassembly, allowing for single-use operation without extensive cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire drum is designed as a replaceable single-use component made of plastic, then hygiene is improved and cleaning is eliminated, but the running properties and stability of the rotating system deteriorate
Solution Approach 1:
The drum is divided into two distinct parts: an inner drum made of plastic that can be easily replaced and disposed of after use, and an outer support device made of stable material that remains in the separator. This segmentation allows the plastic inner drum to be discarded for hygiene reasons while the stable outer support device maintains the running properties and structural integrity of the rotating system.
2Stability of the object's composition
If the drum is designed as a single integrated unit, then structural stability is improved, but the ease of replacement and handling deteriorates
Solution Approach 1:
The drum system is segmented into a replaceable inner drum and a permanent outer support device. The inner drum can be independently removed and replaced without affecting the outer support device, significantly improving ease of replacement and handling while the outer support device maintains structural stability.
3Ease of manufacture
If the inner drum walls are made thin to reduce material usage, then cost-effectiveness is improved, but the mechanical strength deteriorates
Solution Approach 1:
The outer support device acts as an intermediary structural element that provides the necessary mechanical strength and stability. This allows the inner drum to be constructed with thin walls using minimal plastic material, reducing cost while the outer support device compensates for the reduced strength of the thin-walled inner drum during rotation.
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 design enhances the rotational stability and handling of the separator, reduces the need for cleaning, ensures hygiene, and minimizes waste by enabling the inner drum to be easily replaced after each batch, while maintaining efficient operation and cost-effectiveness.
Implementation Method 1
a separator for the centrifugal processing of a flowable product
Data Source
Figure 1a
Figure 1b
Figure 1c
AI summary
A separator for the centrifugal processing of a free-flowing product, comprising a rotatable drum (2) which defines a centrifugal chamber (15) and has a means arranged in the drum (2) for clarifying a product to be processed in the centrifugal field, is characterized in that the drum (2) has an outer support device and an inner drum (12) arranged in the outer support device, that the drum (2) is arranged in a housing (1), and that the means for clarifying the product to be processed in the centrifugal field is arranged in the inner drum (12).