Remote Rinse Control for Wet Abrasive Blast Machines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wet abrasive blast machines require a second operator to manually switch between blasting and rinsing operations, leading to inefficiencies, increased costs, and wear on equipment due to the need for manual control of valves and the necessity of maintaining large water and air supply systems, which restricts mobility and increases operational time.
Innovation Solution
A control circuit that allows a single operator to remotely control the switching between blasting and rinsing cycles by using a deadman remote control handle to actuate pneumatic or electrical valves, enabling immediate and efficient switching without deactivating the hydraulic or pneumatic circuits, thus eliminating the need for a second operator to manage the slurry hose and air compressor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual control of ball valve on slurry hose is used to switch between blasting and rinsing, then rinsing operation can be performed, but a second operator is required and slurry must be evacuated from slurry hose causing time loss and increased wear
Solution Approach 1:
The system segments the slurry delivery function by providing separate pathways: slurry hose for blasting operation and bypass hose for rinsing operation. The bypass hose with bypass valve creates an independent rinsing pathway that does not require evacuation of the slurry hose, allowing immediate switching between operations without time loss.
Solution Approach 2:
The bypass hose acts as an intermediary pathway that allows rinsing water to reach the blast hose nozzle without passing through the slurry hose. This intermediary route enables rinsing operation to commence immediately without requiring evacuation of slurry from the main slurry hose, eliminating the time loss and wear associated with manual valve operation.
2Adaptability or versatility
If manual operation of ball valve is used to switch between blasting and rinsing, then rinsing can be achieved, but wear on ball valve increases due to frequent manual adjustment
Solution Approach 1:
The bypass valve is designed as a simpler, more durable component compared to the ball valve, intended to handle frequent switching operations. By directing frequent rinsing switching through the bypass valve rather than the ball valve, the system protects the more complex ball valve from excessive wear, extending its service life and reducing repair needs.
3Ease of operation
If second operator is required to control slurry hose for rinsing, then valve control is achieved, but operational costs and complexity increase
Solution Approach 1:
The bypass valve is designed to be controlled by the same operator who operates the blast hose nozzle, making the rinsing function universally controllable from the same location. This eliminates the need for a second operator to manage the slurry hose, reducing manpower requirements and operational complexity while maintaining full control capability.
4Reliability
If hydraulic and pneumatic circuits are deactivated during switching, then system safety is maintained, but operational time increases due to reboot requirement
Solution Approach 1:
The bypass hose and bypass valve are pre-configured to allow rinsing water to flow through an alternative pathway before the main slurry hose needs to be evacuated. This preliminary routing arrangement enables immediate rinsing operation without requiring deactivation and reboot of hydraulic and pneumatic circuits, maintaining system pressure and eliminating downtime while ensuring safe operation through proper isolation.
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
Enables single-handed operation, reduces operational time, minimizes equipment wear, and maintains pressure in the hydraulic and pneumatic circuits during switching, allowing for immediate resumption of blasting or rinsing without the need for rebooting the system.
Implementation Method 1
Pneumatic pressure is thence generated via an air compressor into a blast hose via a piping manifold connected to the blast pot by a slurry hose
Implementation Method 2
a hydraulic side and a pneumatic side combine to enable blasting of pressurized fluids to scour and clean surfaces
Implementation Method 3
The effect is to spray a high velocity stream of grit particles to scour and clean the targeted surface
Data Source
AI summary
An improved wet abrasive blast machine with remote control rinse cycle enables a pilot operating the apparatus to control remote switching between blast and rinse cycles directly, for example from a nozzle of a blast hose or from a panel. A first and second hydraulic circuit and a pneumatic circuit are controllable via communication with a control circuit which is operable remotely to direct a configurable pilot signal between various valve states. In a preferred embodiment, the control circuit is powered pneumatically via a branch circuit fed from the pneumatic circuit. Switching between configurations is effected by directing an air pilot signal between airflows interior to a series of valves. In an alternate embodiment switching airflows between configurations is effected electrically.