Solid-Liquid Waste Processing System Using Shale Shakers and Centrifugal Separators
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Solution Overview
Problem
Current methods for handling solid-liquid waste from construction sites are inefficient, leading to high chemical consumption, high costs, and incomplete pollution risk elimination, with collected slurry being harmful to the environment and unable to be fully reused.
Innovation Solution
A system comprising linear-motion shale shakers, centrifugal pumps, mud cleaner assemblies, and a VFD centrifugal solid-liquid separator processes solid-liquid waste to produce stable solids and clean water, allowing for reuse in construction processes, dust control, or water reclamation, and recycling of solids into usable aggregates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If natural sedimentation method is used to process solid-liquid waste, then the process is simple, but the processing efficiency is low and pollution risks cannot be completely eliminated
Solution Approach 1:
The waste processing system is divided into multiple sequential stages: initial sedimentation tank for primary separation, followed by shale shakers for solid-liquid separation, then centrifugal separators for further purification. Each stage handles specific separation tasks, transforming the single-step sedimentation into a multi-stage progressive separation process that improves efficiency while maintaining manageable complexity
Solution Approach 2:
The system performs preliminary sedimentation in the initial sedimentation tank before the waste enters the main processing line. This pre-separation removes a significant portion of settleable solids upfront, reducing the load on subsequent equipment and improving overall processing efficiency without requiring complex equipment for the entire process
2Manufacturing precision
If chemical hardener agents and water purification agents are added to cure clear water, then water quality improves, but chemical consumption increases and cost increases
Solution Approach 1:
The system replaces chemical treatment with mechanical separation methods. Centrifugal separators use centrifugal force to separate remaining suspended solids from water, and filtration systems use physical barriers to remove contaminants. This mechanical approach achieves water purification without adding chemical hardeners or purification agents, eliminating chemical consumption while maintaining water quality
Solution Approach 2:
The system converts the harmful slurry that would otherwise require chemical treatment into a resource. The solid-liquid separation processes recover water that can be reused in construction activities, and the separated solids can be disposed of in landfills or used as filler material, transforming a waste problem into a resource recovery opportunity without chemical additives
3Manufacturing precision
If shale shakers, desilters, and desanders are used to process solid-liquid waste, then separation capability improves, but the equipment fails to efficiently function under large volume of waste
Solution Approach 1:
The system merges multiple separation technologies into an integrated processing line. The initial sedimentation tank handles bulk separation, shale shakers perform solid-liquid separation on specific particle sizes, and centrifugal separators handle fine particles. By combining these different separation mechanisms in sequence, the system maintains high separation capability for each particle size range while achieving high overall handling capacity through the parallel and sequential operation of multiple units
Solution Approach 2:
The system adds the dimension of centrifugal separation to complement the traditional shale shaker approach. While shale shakers use linear vibration for separation, the centrifugal separators use rotational centrifugal force to separate particles based on density and size. This additional dimensional approach allows the system to handle larger volumes efficiently while maintaining separation capability across different particle size ranges
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 system effectively converts unusable solid-liquid waste into recyclable materials, reducing landfill use and environmental pollution by producing clean water and reclassifying solids for reuse, thus conserving resources and improving environmental safety.
Implementation Method 1
a first linear-motion shale shaker that accepts an initial load of solid and liquid waste and that separates the initial load of solid and liquid waste into a first quantity of solid waste and a first flow of liquid waste
Implementation Method 2
The present invention utilizes the first linear-motion shale shaker to remove and collect large debris from the initial load of solid and liquid waste
Implementation Method 3
a variable frequency drive (VFD) centrifugal solid-liquid separator that further processes the de-sanded liquid into a fifth flow of liquid waste and a flow of semi clean water
Implementation Method 4
a desander unit that separates sand particles from the second flow of liquid waste
Implementation Method 5
a desilter unit that separates silt particles from the flow of semi de-sanded liquid
Data Source
AI summary
A system for processing solid and liquid waste includes a first shale shaker, a second shale shaker, a submersible pump, a centrifugal pump, a first collection tank, a second collection tank, a mud cleaner assembly, a variable frequency drive (VFD) centrifugal solid-liquid separator, and a water clarifying assembly. The first shale shaker is in fluid communication with the second shale shaker through the submersible pump. The second shale shaker is in fluid communication with the centrifugal pump through the first collection tank. The centrifugal pump is in fluid communication with the mud cleaner assembly. The mud cleaner assembly is in fluid communication with the VFD centrifugal solid-liquid separator through the water clarifying assembly. Resultantly, the system discharges a flow of usable water through the VFD centrifugal solid-liquid separator as an initial load of solid and liquid waste is inputted into the first shale shaker.