Dry Bulk Trailer Vacuum Filtration With Reverse Airflow Cleaning
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Solution Overview
Problem
Filtration systems in dry bulk tank trailer assemblies face challenges with clogged or blocked filter media due to interference from filtered dust and particulate, leading to reduced performance and potential system failures.
Innovation Solution
A vacuum filtration system with a control system that automatically cleans the filter media by reversing airflow across the filter media, using residual vacuum in the tank to facilitate cleaning while maintaining efficient material loading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If filter media is cleaned by reversing airflow, then filter performance is restored, but system complexity increases
Solution Approach 1:
The control system serves multiple functions: it manages normal filtration operation, monitors system conditions, and executes reverse airflow cleaning cycles. By integrating these functions into a single control system, the patent avoids adding separate dedicated cleaning control devices, thereby managing complexity while achieving automated filter maintenance.
Solution Approach 2:
The control system automatically manages the cleaning process without external intervention. It monitors filter conditions and initiates reverse airflow cleaning when needed, using the system's own residual vacuum airflow. This automation eliminates manual cleaning operations and reduces the need for additional control mechanisms.
2Reliability
If residual vacuum is used to clean filter media, then cleaning effectiveness is improved, but material loading efficiency may be reduced
Solution Approach 1:
The system implements periodic cleaning cycles rather than continuous operation. The control system alternates between normal material loading mode and reverse airflow cleaning mode, allowing the bulk material loading process to proceed uninterrupted during filtration phases while implementing brief cleaning intervals when loading is paused or reduced, thereby minimizing impact on overall productivity.
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 maintains filter media performance by regularly cleaning dust accumulation, ensuring continuous operation and preventing system failures such as blower damage and material discharge into the environment.
Implementation Method 1
Filtration systems for typical dry bulk tank trailer assemblies separate the air conveying the material from dust and other particles or debris when conveying such materials
Implementation Method 2
A control system is provided which controls the operation of the vacuum source and reverses the flow of air across the filter media to clean the filter media
Data Source
AI summary
A filtration system for a dry bulk tank trailer includes a filter canister containing a filter media in the interior volume of the filter canister. The filter media divides the interior volume of the filter canister into a dusty air side and a clean air side of the interior volume on opposite sides of the filter media. A dusty air line operatively communicates the dusty air side of the interior volume with the dry bulk tank. A fitting operatively communicates with the clean air side of the interior volume. The fitting is operable to selectively communicate a vacuum pressure and a positive pressure to the clean air side of the interior volume.