Venturi Particle Collector for Kitchen Waste Slurry Desanding
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Solution Overview
Problem
Existing methods for collecting inert particles in kitchen waste slurries are inefficient, costly, and lead to pipeline wear and reduced anaerobic fermentation effectiveness due to the inability to effectively remove fine inert particles, which cause blockages and reduce the efficiency of the anaerobic fermentation process.
Innovation Solution
A Venturi-type collector is designed to collect inert particles by leveraging the Venturi effect, utilizing a variable-diameter pipe and settling straight pipe to separate and collect inert particles, with a filter mesh to ensure sustainable recovery and reduce pipeline wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cyclone desanding or centrifugal impurity removal is used to separate inert particles, then inert particle removal effectiveness is improved, but device complexity and occupied area increase
Solution Approach 1:
The patent replaces complex mechanical separation systems (cyclone desanding, centrifugal impurity removal) with a simpler sedimentation tank system that uses natural gravity settling. The sedimentation tank creates a controlled environment where inert particles settle naturally, eliminating the need for complex mechanical separation equipment while maintaining removal effectiveness.
Solution Approach 2:
The patent extracts and removes inert particles from the slurry stream by introducing a separate sedimentation zone. The sedimentation tank isolates the separation process from the main slurry flow, allowing inert particles to settle and be removed independently without affecting the overall system complexity.
2Reliability
If multi-stage sorting with crushing and screening is used, then inert particle separation is improved, but treatment flow length and organic matter loss increase
Solution Approach 1:
The patent extracts the inert particle separation function from the complex multi-stage crushing and screening process. By introducing a dedicated sedimentation tank, the separation of inert particles is achieved in a single, simplified stage without requiring multiple crushing and screening operations, thereby reducing treatment flow length.
Solution Approach 2:
The patent replaces the mechanical crushing and screening system with a gravity-based sedimentation system. This substitution eliminates the need for multiple mechanical processing stages, reducing both device complexity and treatment flow length while maintaining effective inert particle separation.
3Productivity
If comprehensive sorting device with high flow rate is used, then treatment velocity is improved, but screening particle size increases and impurity removal effectiveness decreases
Solution Approach 1:
The patent introduces a sedimentation tank as an intermediary device between the high-flow comprehensive sorting device and the anaerobic fermentation tank. This intermediary allows the high-flow device to operate at high velocity while the sedimentation tank provides the necessary residence time for effective inert particle removal, decoupling the conflicting requirements of treatment velocity and removal effectiveness.
4Object-affected harmful factors
If inert particles remain in slurry, then pipeline wear increases, but adding removal technology increases device complexity
Solution Approach 1:
The patent replaces complex active removal technologies with a simple gravity-based sedimentation tank system. This passive system allows inert particles to settle naturally, reducing pipeline wear without requiring complex mechanical removal devices, thereby maintaining low device complexity while addressing the pipeline wear issue.
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 Venturi-type collector effectively reduces pipeline wear and inert particle content in the slurry, enabling sustainable collection and reducing treatment costs while maintaining anaerobic fermentation efficiency.
Implementation Method 1
A Venturi-type collector is designed to collect inert particles by leveraging the Venturi effect, utilizing a variable-diameter pipe and settling straight pipe to separate and collect inert particles
Implementation Method 2
utilizing a variable-diameter pipe and settling straight pipe to separate and collect inert particles
Data Source
AI summary
The present invention relates to an apparatus for collecting inert particles in a kitchen waste slurry, and in particular to an apparatus and method for collecting inert particles in a slurry by applying Venturi effect. The method includes the steps: an apparatus for collecting the inert particles based on the Venturi effect, a method for drawing a pipeline flow velocity cloud plot, a method for counting a concentration of the inert particles, etc. By means of a method for counting a flow velocity, a concentration of inert substances in the slurry and a particle density in a target kitchen waste slurry, an optimal arrangement solution of an inert particle collector is determined. A Venturi-type inert particle collecting apparatus of the present invention includes an inert particle settling apparatus, a particle storage apparatus, and a connection portion between the apparatuses. With stable recovery of the inert particles in the kitchen waste slurry as a target, through simulation and field debugging of flow conditions and a content of inert substances of the slurry, and feedback adjustment on each recovery of the inert substances, the present invention obtains a stable recovery cycle, and finally achieves sustainable and stable recovery of inert particles in the kitchen waste slurry.