Liquid Separating Drum with Longitudinal Slits
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Solution Overview
Problem
Conventional liquid separating drums with small circular holes are inefficient and prone to clogging, requiring large cylinders that occupy significant space and are cumbersome to operate effectively in separating liquid from solid materials.
Innovation Solution
A liquid separating drum with longitudinal slits and profiled bars that allow liquid to evacuate divergently while retaining solids, featuring a serrated inner peripheral contact surface and a positive inclination, reducing clogging and increasing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If small circular holes are used in conventional liquid separating drums, then liquid can be evacuated through the holes, but the holes become plugged up by mixture material reducing separation efficiency
Solution Approach 1:
The drum surface is segmented into multiple longitudinal slots instead of using numerous small circular holes. Each slot is further divided into an upstream portion and a downstream portion, creating a segmented structure that prevents material buildup while maintaining liquid evacuation capability. This segmentation approach eliminates the clogging issue inherent in small circular holes.
Solution Approach 2:
The invention transitions from zero-dimensional circular holes to one-dimensional longitudinal slots, and further to two-dimensional slot portions with varying cross-sections. This dimensional change provides a larger opening area that prevents clogging while maintaining effective liquid separation. The slots extend along the drum's length, utilizing the longitudinal dimension to prevent material accumulation.
2Productivity
If large-sized cylinders are used to compensate for poor performance of rolling drum configurations, then material can be processed, but the system takes up a very large amount of space
Solution Approach 1:
The invention changes the geometric parameters of the drum openings from small circular holes to larger longitudinal slots with varying cross-sections. This parameter change increases the effective opening area without increasing drum dimensions, thereby improving processing capacity while maintaining a compact drum size. The slot configuration allows for higher productivity in a smaller volume.
3Device complexity
If simple circular holes are used in the drum, then the drum structure is simple, but the holes become plugged up requiring frequent maintenance
Solution Approach 1:
The drum structure is segmented into longitudinal slots rather than using simple circular holes. While this increases structural complexity slightly, it dramatically reduces maintenance frequency by preventing clogging. The segmented slot structure allows material to pass through more easily while maintaining structural integrity of the drum.
4Productivity
If the drum is configured with longitudinal slits and profiled bars, then liquid evacuation is improved with diverging flow, but the manufacturing complexity increases
Solution Approach 1:
The drum is constructed by assembling profiled bars with longitudinal slots rather than manufacturing a solid drum and drilling holes. This segmentation approach actually simplifies manufacturing, as the bars can be fabricated separately with slots and then assembled around the drum perimeter. The modular construction improves liquid evacuation while maintaining ease of manufacture.
Solution Approach 2:
The profiled bars serve multiple functions: they form the drum structure, create the longitudinal slots for liquid evacuation, and provide the diverging flow pattern through their geometric configuration. This multi-functionality reduces the need for additional components, simplifying manufacturing while improving productivity.
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 drum achieves efficient separation of liquid from solid materials with a smaller footprint, allowing for higher processing rates and reduced maintenance, as demonstrated by treating 40 gallons per minute with a significantly smaller drum compared to conventional systems.
Implementation Method 1
each longitudinal slit being profiled and defining an interface configured for allowing liquid material to evacuate out from the interior of the main body via the interface in a diverging manner through the slit
Implementation Method 2
each profiled bar comprising a central axis, and each profiled bar being mounted onto supporting ribs so that its central axis is disposed at a given angle ranging with respect to a corresponding radial axis of the liquid separating drum, the given angle ranging between about 2 degrees and about 4 degrees so as to provide the main body with an inner peripheral contact surface that is serrated
Data Source
AI summary
A liquid separating drum (1) for use with a separator (3) in order to separate liquid material (11a) from solid material (11b) in a mixture material (11) to be processed. The liquid separating drum (1) includes an elongated main body (5) having a longitudinal axis (7), the main body (5) being removably mountable about a base frame (9) of the separator (3) so as to be rotatable with respect thereto, the main body (5) having an inlet (5a) for receiving the mixture material (11) to be processed, and an outlet (5b) for releasing processed material. Advantageously, the main body (5) includes a plurality of longitudinal slits (15) operatively connecting the interior (17) of the main body (5) to the exterior (19) thereof, the longitudinal slits (15) extending longitudinally with respect to the main body (5) and being provided circumferentially about said main body (5), each longitudinal slit (15) being profiled and defining an interface (21) configured for allowing liquid material (11a) to evacuate out from the interior (17) of the main body (5) via the interface (21) in a diverging manner through the slit (15), while retaining solid material (11b) inside the main body (5).