Double-Conical Centrifuge Drum for Two-Stage Separation
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Solution Overview
Problem
Existing centrifuge designs face limitations in maximizing clarification capacity while maintaining a compact drum size, and they often require multiple systems for efficient two-stage separation of liquid phases and solids.
Innovation Solution
A rotating drum with a vertical axis, subdivided into a lower and upper double-conical centrifuging chamber by a conical partitioning plate, allowing for two-stage separation in a single system with separate solids discharge openings and distribution ducts for clarified product, enabling efficient clarification and separation of liquid phases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the drum diameter is increased to maximize clarification capacity, then the clarification capacity is improved, but the drum size becomes larger and production becomes less efficient
Solution Approach 1:
The drum inner chamber is divided into two separate double-conical centrifuging chambers (upper and lower) that operate independently. Each chamber has its own separating plate assembly, solids discharge openings, and discharge ducts. This segmentation allows the total clarification capacity to be doubled within the same drum volume, effectively resolving the contradiction between maximizing clarification capacity and maintaining compact drum size.
2Productivity
If multiple separate systems are used for two-stage separation, then the separation efficiency is improved, but the device complexity increases
Solution Approach 1:
Two complete centrifuging chambers with separating plate assemblies are merged into a single drum, sharing common structural elements such as the drum shell, drive mechanism, and support structures. Each chamber maintains functional independence with separate discharge systems, achieving two-stage separation capability while reducing overall system complexity compared to using two separate centrifuges.
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
This configuration enhances the clarification capacity and facilitates the separation of two liquid phases with a high mass moment of inertia, allowing for substantial clarification and separation in a single rotating system, optimizing the functionality and production efficiency.
Implementation Method 1
a separator with a rotating system, which has a drum with a vertical axis of rotation, which drum is rotatable during operation
Implementation Method 2
the mass moment of inertia JQ of the rotating system about a transverse axis Q extending through the center of gravity of the rotating system of the drum and which is perpendicular to the vertical axis of rotation D is greater than the mass moment of inertia JD of the rotating system about the vertical axis of rotation D
Data Source
AI summary
A separator with a rotating system includes a drum with a vertical axis of rotation, which drum is rotatable during operation, and a drum inner chamber subdivided into a lower double-conical centrifuging chamber and an upper double-conical centrifuging chamber. Both centrifuging chambers have solids discharge openings that are openable and closable in the lower centrifuging chamber by a piston slide and in the upper centrifuging chamber by an auxiliary slide. The mass moment of inertia JQ of the rotating system about a transverse axis Q extending through the center of gravity S of the rotating system of the drum and which is perpendicular to the vertical axis of rotation D is greater than the mass moment of inertia JD of the rotating system about the vertical axis of rotation D of the rotating system.