Segmented Abrasive Chambers for Precision Surface Cleaning
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Solution Overview
Problem
Existing surface cleaning apparatuses require laborious mixing and preparation of multiple abrasive materials, leading to increased operating times and inaccuracies in achieving the desired composition, especially for high-precision treatments.
Innovation Solution
A portable apparatus with hermetically separated chambers for different abrasive materials and independent mixing valves, allowing for separate mixing with compressed air and adjustable pressure, enabling efficient and reproducible surface cleaning with the ability to modify the mixture composition in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple abrasive materials are mixed in a single tank using traditional apparatuses, then the apparatus structure remains simple, but the operating time increases and mixing accuracy decreases
Solution Approach 1:
The tank is divided into multiple separate chambers, each dedicated to storing and mixing a specific abrasive material. This segmentation eliminates the need for manual mixing of multiple materials while maintaining the ability to deliver combined abrasive streams, thereby improving mixing accuracy without significantly increasing operating time.
Solution Approach 2:
Each chamber pre-mixes the abrasive material with compressed air before delivery, so that when multiple streams are combined at the nozzle, the mixing is already partially completed. This preliminary action in each chamber reduces the overall mixing time and improves precision compared to manual pre-mixing in a single tank.
2Adaptability or versatility
If a single tank is used for multiple abrasive materials, then the device complexity is low, but the ability to adjust mixture composition dynamically is limited
Solution Approach 1:
By dividing the tank into separate chambers for different abrasive materials, each chamber can be independently controlled and adjusted. This allows dynamic modification of mixture composition by adjusting individual chamber outputs without requiring complete remixing, thereby improving adaptability while keeping the overall structure manageable through modular design.
Solution Approach 2:
The system enables dynamic adjustment of abrasive material proportions by controlling the flow from each chamber independently. Valves and flow control mechanisms in each chamber allow real-time modification of mixture composition during operation, providing high versatility without requiring complex centralized mixing systems.
3Reliability
If manual mixing of abrasive materials is performed outside the apparatus, then the apparatus structure remains simple, but the reproducibility of treatment composition decreases
Solution Approach 1:
Each chamber independently stores and prepares a specific abrasive material with controlled mixing, ensuring consistent proportions when materials are combined. This segmented approach eliminates manual mixing variability and improves treatment reproducibility while maintaining a relatively simple apparatus structure through modular chamber design.
Solution Approach 2:
Each chamber automatically mixes its designated abrasive material with compressed air using integrated mixing mechanisms, eliminating the need for external manual mixing. This self-service capability ensures consistent, reproducible mixture composition without adding complex external mixing equipment to the apparatus.
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 apparatus reduces operating times, enhances the accuracy and reproducibility of surface treatments by allowing for easy adjustment of abrasive material proportions and rapid setup, while maintaining a simple and cost-effective design.
Implementation Method 1
a circuit for adjustment and distribution of compressed air including compressed air conducting means predisposed to conveying said compressed air in said chambers and in said mixing valves
Implementation Method 2
each mixing valve being predisposed to receive said abrasive material contained in said relative chamber and to mix said abrasive material with a predetermined amount of compressed air
Implementation Method 3
The sandblasting consists in propelling a jet of compressed air and abrasive material on the surface to be treated so as to remove the superficial layer of material
Implementation Method 4
said mixing device shaping a first duct and a second duct flowing into a third duct in which said flows are mixed in order to obtain a resulting flow of compressed air and at least two abrasive materials mixed
Data Source
AI summary
The portable apparatus for cleaning surfaces comprises a tank (2) associated with a base (3), said tank (2) comprising at least one couple of chambers (5) predisposed to contain respective abrasive materials, said chambers (5) being hermetically separated from one another; at least one couple of mixing valves (13) associated with said base (3) and connected with respective said chambers (5) each said mixing valve (13) being predisposed to receive said abrasive material contained in said respective chamber (5) and to mix said abrasive material with a predetermined amount of compressed air.