Mobile Wet Waste Separator Screen Drum Dewatering

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Solution Overview

Problem

Existing technologies lack a mobile solution for effective on-site separation and dewatering of solid debris in municipal waste at remote collection stations, failing to efficiently isolate and collect solids clogging debris in municipal waste collection and treatment systems.

Innovation Solution

A mobile, self-contained wet waste separation system mounted on a platform with a primary screen drum filter and a dewatering conveyor assembly that sequentially separates and dewater solids, utilizing a rotating screen drum with multiple annular rings and auger flights, and dual dewatering conveyor belts with impingement rollers for efficient solid waste separation and transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a mobile wet waste separator is deployed at remote collection stations, then on-site separation and dewatering capability is improved, but device complexity increases

Engineering Contradiction:

Improveon-site separation capabilityVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system is divided into separate functional modules: a screen drum assembly for solid-liquid separation, a conveyor assembly for transporting separated solids, and a water recycling system. This segmentation allows each component to be optimized independently while maintaining overall mobile functionality at remote collection stations

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mobile separator is designed to perform multiple functions: separating solids from liquids, dewatering waste materials, recycling water for cleaning vacuum trucks, and operating autonomously at remote locations. This multi-functionality addresses the technical contradiction by providing comprehensive waste management capabilities in a single mobile platform

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Productivity

If continuous operation at remote locations is implemented, then productivity is improved, but loss of time increases

Engineering Contradiction:

Improvecontinuous operation capabilityVSAvoidtransport time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The system performs separation and dewatering operations at the remote collection station before waste materials need to be transported to disposal sites. By completing the separation process in advance, the system reduces the time required for subsequent transport operations and enables continuous workflow

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The mobile separator is designed to operate continuously at remote collection stations without requiring return trips to centralized facilities. The integrated conveyor and screen drum systems maintain continuous operation, eliminating idle time and maximizing productivity while reducing overall time loss through efficient sequencing of operations

Inventive Principle:

Principle #20Continuity of useful action

3Loss of substance

If water recycling for cleaning vacuum truck is implemented, then loss of substance is reduced, but device complexity increases

Engineering Contradiction:

Improvewater recyclingVSAvoidwater treatment system complexity

Core Design Contradiction:

Loss of substanceVSDevice complexity

Solution Approach 1:

The system recovers water from the separation process and uses it to clean vacuum trucks, thereby reducing water consumption and minimizing waste. This water recycling loop addresses the technical contradiction by recovering valuable resources while keeping the added complexity manageable through an integrated design

Inventive Principle:

Principle #34Discarding and recovering

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 isolates and collects solids, achieving efficient separation and dewatering of municipal waste, allowing for continuous operation at remote locations and maximizing waste transfer to disposal sites while recycling water for cleaning the vacuum truck.

Implementation Method 1

a primary screen drum filter that separates solids entrained in a fluid flow

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Implementation Method 2

sequentially moves them forward and onto a dewatering conveyor assembly

Methodology Applied

Scientific EffectMechanical conveyance: Mechanical Force

Implementation Method 3

dual dewatering conveyor belts with impingement rollers for efficient solid waste separation and transfer

Methodology Applied

Scientific EffectCompression: Compression

Data Source

PatentUS10207209B1Mobile wet waste separator

Publication Date: 2019.02.19 TOFT STEPHEN R

AI summary

A self-contained mobile wet waste material separator and dewatering for waste water treatment facilities to facilitate the dewatering of solid waste debris that accumulates in screening points within the transfer and treatment process. The mobile wet water waste separator has a screen drum separator rotatably mounted on a wheeled trailer with integrated multiple dewatering and transfer continuous conveyor belts. The wet waste material separator and dewatering provides for dewatering of separated solid waste removed from waste treatment wet wells that define intermediate transfer stations within a municipal waste water collection and treatment system via a collection and transfer vacuum truck.