Eccentric Cutting Blade Distribution Device for Solids-Laden Liquids
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Solution Overview
Problem
Distribution devices for liquids containing solids face challenges such as blockages due to solids, variability in flow properties, and the need for frequent design changes when adapting to different solids-laden liquids, as well as operational inefficiencies under varying load conditions and flow rates.
Innovation Solution
A distributor device featuring a cutting blade connected to an eccentric element, allowing for eccentric movement relative to a perforated disk, which adapts to different solids properties and flow rates without requiring design changes, and includes a coupling element for adjustable eccentricity and a counterweight for mass balance, ensuring effective comminution and distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cutting device is coupled to the distribution device to comminute solids, then the risk of blockages in small passage cross-sections is reduced, but the device complexity increases
Solution Approach 1:
The cutting device is integrated into the distribution device by combining the cutting blade and perforated disk into a single rotating assembly mounted on the drive shaft. The cutting blade is positioned to cooperate with the perforated disk, creating a compact combined unit that comminutes solids while distributing liquid, thereby reducing blockage risk without significantly increasing overall device complexity
Solution Approach 2:
The rotating assembly serves multiple functions simultaneously: the drive shaft rotates the assembly, the cutting blade comminutes solids, the perforated disk distributes liquid, and the combined structure acts as both a cutting device and distribution device. This multi-functionality reduces the need for separate components, addressing the complexity issue while maintaining reliability
2Manufacturing precision
If the distribution device is designed with fixed geometric parameters to adapt to specific solids-laden liquid properties, then the distribution performance is optimized for those properties, but the adaptability to different liquids is reduced
Solution Approach 1:
The cutting blade is mounted on the rotating drive shaft such that its position relative to the perforated disk changes dynamically during rotation. The blade moves from a retracted position where it does not contact the disk to an extended position where it cooperates with the disk for comminution. This dynamic positioning allows the same device to adapt to different solids-laden liquid properties by adjusting the effective cutting action, thereby maintaining distribution performance across varying conditions without requiring multiple fixed designs
3Reliability
If the relative speed between cutting elements and perforated disk is increased to improve comminution effect, then the risk of blockages is reduced, but the energy consumption increases
Solution Approach 1:
The cutting blade and perforated disk rotate together continuously on the same drive shaft, maintaining constant relative motion without interruption. This continuous rotation ensures sustained comminution action throughout the distribution process, keeping solids finely divided and preventing blockages. The continuous operation at optimized speed balances effective comminution with energy efficiency, avoiding the need for periodic high-speed pulses that would consume excessive energy
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 device achieves reliable and uniform distribution of solids-laden liquids across a wide range of properties and flow rates, reducing the risk of blockages and wear, while allowing for efficient operation under varying load conditions without the need for frequent mechanical adjustments.
Implementation Method 1
a first cutting blade which is connected to the first eccentric element and has a cutting edge which rests against the first hole cutter disk and can be moved relative to the first hole cutter disk by means of the first eccentric element
Data Source
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AI summary
The invention relates to a distribution device for liquids, in particular for liquids containing solids, comprising: a distribution chamber (10) with an inlet opening (11) which opens into a chamber interior (12) of the distribution chamber (10), a first perforated cutter disc (15) with several outlet openings (20, 21) which connect the chamber interior (12) with several connecting nozzles (16) and a cutter drive shaft (30) which is rotatably mounted about a drive shaft axis (100). According to the invention, a first eccentric element (40) is connected to the knife drive shaft (30) and defines a first eccentric axis (101) located at a distance from the drive shaft axis (100), and a first cutting knife (50) is provided, which is connected to the first eccentric element (40) and has a cutting edge (52) that rests against the first perforated knife disc (15) and is movable relative to the first perforated knife disc (15) by means of the first eccentric element (40).