Residual Concrete Separation with Dynamic Sieves and Density Routing
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Solution Overview
Problem
Existing concrete recycling systems face issues with high wear of structural elements due to friction and require complex water purification processes, leading to operational inefficiencies and environmental impact.
Innovation Solution
A system with vibrating sieves suspended horizontally and vertically, controlled by a lifting device, and a water distribution system using a movable control nipple to separate concrete components based on density, combined with polymer or metal-polymer coated screens and a sand filter, ensuring efficient separation and closed-loop water usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional concrete recycling systems use fixed screening mechanisms, then separation function is achieved, but structural elements experience high wear due to friction
Solution Approach 1:
The patent applies the dynamics principle by transforming fixed screening mechanisms into movable vibrating screens that can adjust their position and angle. The screens are mounted on movable supports allowing them to vibrate and change orientation during operation, reducing friction and wear on structural elements while maintaining effective separation functionality.
Solution Approach 2:
The patent implements parameter changes by enabling the screening surfaces to vary their inclination angle and vibration characteristics during operation. This allows optimization of separation efficiency while reducing mechanical stress and wear on supporting structures through dynamic adjustment of operational parameters.
2Reliability
If complex water purification processes are used, then water quality is improved, but system complexity and cost increase
Solution Approach 1:
The patent applies segmentation by dividing the water purification process into multiple stages with different functions. The system separates water treatment from concrete separation operations, using distinct chambers and mechanisms for each function, thereby simplifying the overall system while achieving effective water purification.
Solution Approach 2:
The patent uses an intermediary approach by introducing a separate water circulation system that acts as a mediator between the separation process and the environment. This intermediate water treatment system handles purification independently, reducing the complexity burden on the main separation apparatus.
3Manufacturing precision
If multiple separation stages are implemented, then separation precision is improved, but device complexity increases
Solution Approach 1:
The patent uses dynamics to achieve multiple separation stages through a single vibrating screen system that can adjust its operational parameters. By varying vibration frequency, amplitude, and screen angle during different phases of operation, the system achieves multi-stage separation effectiveness without requiring multiple fixed screening apparatuses.
Solution Approach 2:
The patent implements universality by designing a multi-functional vibrating screen system that performs multiple separation tasks. The same screening mechanism handles different separation requirements at different operational modes, reducing overall system complexity while maintaining high separation precision through parameter adjustment.
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
Enhances operational reliability, reduces wear, simplifies maintenance, and minimizes environmental impact through reduced water emissions, while maintaining efficient separation and reuse of concrete components.
Implementation Method 1
at least one lifting device 3, which suspends two or more vibrating sieves 4, 5 configured to move horizontally and vertically
Implementation Method 2
the hydrocyclone separation system comprises a hydrocyclone separator with a chute
Implementation Method 3
a movable control nipple, configured to determine a cement concentration depending on the density of the water-cement mixture and to direct subsequently the water-cement mixture in the first tank, if its density is higher or equal to a predetermined value, or in the second tank, if the density of the water-cement mixture is below the predetermined value
Implementation Method 4
in a bottom part of the process tank there is a pump connected to the conduit of a water distribution system and configured to move a water-cement mixture
Data Source
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AI summary
The invention relates to the field of construction, in particular to systems for separation of components of the residual concrete mixture. The system for separation of the components of the residual concrete mixture comprises a frame with a rail fixed on it, on which at least one lifting device is placed, which suspends two or more vibrating sieves configured to move horizontally and vertically, as well as to change their angle of inclination, and having different mesh sizes, as well a process tank with a water placed under the vibrating sieves and having upper and lower level sensors controlling the water level in the tank. In a bottom part of the tank there is a pump connected to a conduit of a water distribution system and configured to move a water-cement mixture obtained in the process tank and previously passed through the vibrating sieves. The conduit comprises a movable control nipple configured to determine a cement concentration depending on a density of the water-cement mixture and to direct subsequently the water-cement mixture in the first tank if its density is higher or equal to a predetermined value, or in the second tank, if the density of the mixture is below the predetermined value, through a sand filter, which simultaneously serves as a sand hopper of the sand sifted on the lower sieve; a control unit configured to control an operation of the system for separation of the components of the residual concrete mixture. The technical result is to increase of the operational reliability of the system for separation of the components of residual concrete mixture.