Vertical Dewatering Framework with Gravity Filter Bags
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Solution Overview
Problem
Current dewatering technologies for liquid slurries are energy-intensive, require specialized skills for maintenance, and often face limitations in handling and transporting dewatered solids due to weight and volume constraints, as well as issues with leakage and prolonged drying times.
Innovation Solution
A vertical skeletal framework with a filter bag or plates that utilizes gravity for efficient drainage, minimal moving parts for low maintenance, and a hydraulic or mechanical system for easy disposal of dewatered solids, along with a portable design that allows for efficient dewatering and composting of slurry solids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mechanical dewatering equipment is used, then dewatering capability is improved, but energy consumption and maintenance requirements increase
Solution Approach 1:
The filter bag system allows the slurry to dewater itself through gravity-driven filtration. The filter bag retains solids while allowing liquid to pass through, eliminating the need for complex mechanical dewatering equipment and reducing energy consumption significantly.
Solution Approach 2:
The patent replaces mechanical dewatering systems with a passive filtration system using filter bags. Instead of using mechanical separators, centrifuges, or presses, the invention uses simple filtration through fabric bags that rely on gravity and pressure differential to separate solids from liquid.
2Productivity
If mechanical dewatering equipment is used, then dewatering capability is improved, but maintenance complexity increases
Solution Approach 1:
The filter bags are designed to be self-contained and easily removable. After dewatering, the bags can be simply lifted out and disposed of or cleaned, eliminating the need for specialized maintenance skills and reducing operational complexity.
Solution Approach 2:
The patent employs disposable filter bags that can be easily replaced after a single use. This eliminates the need for expensive, complex mechanical equipment that requires specialized maintenance, allowing operators to simply remove and replace bags without technical expertise.
3Adaptability or versatility
If dewatered solids are transported as liquid, then transport flexibility is improved, but environmental damage and operational costs increase
Solution Approach 1:
The patent changes the physical state parameter of the waste material from liquid slurry to solidified compost through the dewatering process. This transformation reduces volume, eliminates runoff pollution, and enables the material to be transported and applied as solid fertilizer, improving both environmental compatibility and transport efficiency.
4Productivity
If filter bags are used for dewatering, then dewatering efficiency is improved, but handling of dewatered material becomes difficult
Solution Approach 1:
The patent extracts the dewatered solids from the filter bag using a conveyor system or manual removal mechanisms. The filter bags are designed to be easily removed from the dewatering apparatus, allowing the concentrated solids to be taken out for disposal or reuse without difficulty.
Solution Approach 2:
The filter bag acts as an intermediary container that facilitates dewatering by retaining solids while allowing liquid to pass through. After dewatering, the bag can be easily removed and the solids discharged, making the handling process simple despite the efficiency of the dewatering operation.
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 solution provides a cost-effective and efficient means for dewatering slurries, reducing environmental impact and operational costs, while enabling the reuse or disposal of dewatered solids as fertilizer, with minimal energy consumption and reduced soil compaction.
Implementation Method 1
A vertical skeletal framework with a filter bag or plates that utilizes gravity for efficient drainage
Data Source
AI summary
An apparatus for dewatering slurry utilizes a vertical skeletal retainer framework, having a top end and a bottom end, into which rigid filter plates, a geotextile filter bag, and/or other filter is installed. The vertical orientation employs gravity to induce maximum drainage, with water in the slurry filtering through the plates or bag and falling downwardly. At the bottom end of the framework, doors or gates facilitate selective holding, and emptying of, dewatered solids. A support structure permits a transport vehicle or hopper to be positioned under the framework for collection and removal of dewatered solids. After removal of its contents, the bag can be pressure washed from the outside and potentially reused. The apparatus may be portable, with the framework being pivotable on a wheeled base.