Low-Pressure Sandblasting Booth with Venturi Media Recirculation
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Solution Overview
Problem
Conventional sandblasting systems require high-pressure air compressors and pumps, leading to dust generation and excessive consumption of cleaning media, making them costly and inefficient.
Innovation Solution
A low-pressure, high-volume sandblasting system with a portable, enclosed booth using a flexible tube system and a venturi nozzle to recirculate sandblasting media, reducing dust and media consumption by utilizing a standard air pump or shop vacuum for airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high-pressure air compressors and pumps are used in sandblasting systems, then sufficient airflow can be supplied to carry sand media, but dust is generated and cleaning media is consumed excessively
Solution Approach 1:
The patent changes the pressure parameter from high-pressure (conventional sandblasting) to low-pressure operation. The system operates at atmospheric pressure or slightly above, using a fan-driven airflow system instead of high-pressure compressors. This parameter change reduces dust generation and media consumption while maintaining effective sandblasting capability through high-volume airflow.
Solution Approach 2:
The patent replaces the conventional mechanical high-pressure compressor system with a fan-driven airflow system. Instead of using mechanical compression to generate high-pressure sandblasting, the system uses a fan to create high-volume airflow that carries the sand media at low pressure, thereby reducing harmful dust generation and media consumption.
2Quantity of substance
If high-pressure air compressors and pumps are used in sandblasting systems, then sand media can be carried to the part, but the system becomes costly and inefficient
Solution Approach 1:
The patent changes the pressure parameter from high-pressure to low-pressure operation, using a fan-driven system instead of high-pressure compressors. This parameter change significantly reduces energy consumption while maintaining sufficient airflow volume to carry sand media effectively for sandblasting operations.
3Ease of operation
If conventional sandblasting systems are used, then cleaning can be performed, but a large amount of cleaning media is consumed
Solution Approach 1:
The patent changes the pressure parameter to low-pressure operation, using fan-driven airflow instead of high-pressure compressors. This reduces cleaning media consumption while maintaining effective cleaning capability through high-volume airflow that efficiently carries sand particles for sandblasting.
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 provides efficient and cost-effective sandblasting with reduced dust and media usage, allowing for continuous operation with minimal media replenishment and improved portability.
Implementation Method 1
A venturi nozzle having a venturi restriction at the end is positioned at the distal end of the first flexible tube. The second flexible tube has an outlet positioned adjacent to the venturi restriction which creates a vacuum to pull sand media from the reservoir into the airflow
Implementation Method 2
A low pressure, high volume air pump that outputs a stream of air through a first flexible tube
Implementation Method 3
In one embodiment, a dust vacuum is provided at an upper portion sandblasting booth in order to remove any debris which floats in the air within the sandblasting booth and reduce the dust
Data Source
AI summary
An enclosed booth is provided with a low pressure, high volume air pump that outputs a stream of air for sandblast cleaning. A venturi nozzle having a venturi restriction at the end is positioned at the distal end of a first flexible tube. A second flexible tube has an outlet positioned adjacent to the venturi restriction which therefore creates a vacuum to pull sand media from the reservoir into the airflow and eject it out of the outlet nozzle of the first hose. This provides a low pressure stream of sandblast media for cleaning various parts. A reservoir is positioned at the bottom of the booth which is filled with the sandblast media. After the sandblasting media is output from the outlet nozzle, it falls through a substrate having apertures therein and enters the reservoir again.