Dental Wastewater Separator With Concentrated Centrifugal Load
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Solution Overview
Problem
Existing air-water separators for dental wastewater, with nested coaxial construction, are difficult to clean and prone to tumbling due to uneven weight distribution and load-intensive components, leading to inefficient separation and maintenance challenges.
Innovation Solution
Concentrating load-intensive components at the bottom of the centrifuge drum, with a central turbine wheel and a removable mounting unit that includes the impeller, centrifuge drum, and turbine wheel, allowing for easy cleaning and maintenance, and utilizing a favorable weight distribution to reduce tumbling tendencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If load-intensive components are distributed throughout the centrifuge drum, then the structural strength is maintained, but the separator experiences tumbling and requires expensive bearing measures
Solution Approach 1:
The centrifuge drum is divided into functional zones: an upper separation zone for air-liquid separation and a lower concentration zone for mounting load-intensive components (turbine wheel, impeller, bearing). This segmentation allows stable weight distribution while maintaining structural integrity through zoned component placement.
2Volume of moving object
If the separator is constructed with nested coaxial components, then the construction size is reduced, but the device becomes difficult to clean and maintain
Solution Approach 1:
The mounting unit is designed as a dynamic, removable assembly rather than a fixed nested structure. The turbine wheel, impeller, and centrifuge drum can be detached as a unit for cleaning and maintenance, then reassembled in the compact nested configuration, combining space efficiency with serviceability.
3Productivity
If the mixture supply tube opens directly onto the turbine wheel, then separation efficiency is improved, but the turbine wheel is exposed to higher loads
Solution Approach 1:
The turbine wheel and impeller are merged into a single integrated mounting unit that is directly connected to the bearing support structure. This combination allows the turbine wheel to efficiently receive waste water from the mixture supply tube for high-speed rotation and separation, while the integrated impeller and bearing structure absorb and distribute the mechanical loads.
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 solution achieves efficient separation of air and liquid constituents while minimizing the risk of tumbling and facilitating easy maintenance by centralizing weight-intensive components and creating a low center of gravity, resulting in a lightweight and stable bearing system.
Implementation Method 1
subject the emerging waste water mixture in the centrifuge drum to a sufficient radial acceleration, so that the liquid and solid constituents of the waste water mixture run onto the centrifuge drum shell surface
Implementation Method 2
the air from the waste water mixture can be discharged from the centrifuge drum in upward direction opposite to the mixture supply tube
Implementation Method 3
While the solids are retained by a corresponding solids blocking flange at the inner shell surface of the centrifuge drum, the water or the liquid from the waste water mixture can escape over this solids blocking flange via the upper surface of the centrifuge drum
Implementation Method 4
The turbine wheel flings away the liquid and solid constituents with a high speed
Data Source
AI summary
The present invention relates to a separator for separating air and possibly present solids from a mixture of dental waste water, comprising an air-water separator, wherein a mixture supply tube opens into a centrifuge drum, an air discharge duct extends from the centrifuge drum to the mixture supply tube and the centrifuge drum includes an upper drain edge over which a water outlet is guided onto the outside of the centrifuge drum. In accordance with the invention, the separator is characterized in that the mixture supply tube opens onto a central turbine wheel arranged above the centrifuge drum bottom and an impeller of a waste water delivery pump, which communicates with the water outlet, is arranged on an outside of the centrifuge drum in the vicinity of the centrifuge drum bottom.