CO2 Pellet Transfer Device Preventing Wall Adhesion
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Solution Overview
Problem
CO2 pellets in existing apparatuses tend to adhere to inner wall surfaces, leading to clogging and interruptions in the production process before they are delivered into a pressurized gas stream for surface cleaning applications.
Innovation Solution
A fluid mechanical transfer device is introduced between the compressing and delivery devices to convey CO2 pellets, utilizing a transfer gas stream to prevent adhesion and detach pellets that are stuck, ensuring continuous and defined delivery of high-strength CO2 pellets into a pressurized gas stream.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If CO2 pellets are conveyed through a transfer device, then continuous delivery is achieved, but adhesion to inner wall surfaces occurs causing clogging
Solution Approach 1:
A fluid mechanical transfer device using a transfer gas stream is introduced as an intermediary medium to convey CO2 pellets from the compressing device to the delivery device. The transfer gas prevents direct contact between pellets and wall surfaces, eliminating adhesion and clogging while ensuring continuous delivery.
Solution Approach 2:
The patent employs pneumatic principles by using a transfer gas stream to convey CO2 pellets through the transfer device. The pressurized gas flow transports pellets without mechanical contact, preventing adhesion to inner wall surfaces and ensuring reliable continuous operation.
2Ease of operation
If CO2 pellets are delivered into pressurized gas stream, then surface cleaning is enabled, but adhesion to delivery device walls occurs
Solution Approach 1:
The transfer gas stream acts as an intermediary that maintains pellets in a suspended state during conveyance to the delivery device. This prevents pellets from adhering to delivery device walls while still enabling their delivery into the pressurized gas stream for surface cleaning applications.
3Reliability
If transfer device is added between compressing and delivery devices, then pellet adhesion is prevented, but device complexity increases
Solution Approach 1:
The transfer device utilizes pneumatic principles with a transfer gas stream to convey pellets, avoiding complex mechanical conveyance systems. This pneumatic approach prevents adhesion while maintaining relatively simple device architecture compared to mechanical alternatives.
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 solution effectively minimizes the risk of clogging and ensures a continuous, efficient delivery of high-strength CO2 pellets, preventing adhesion to transfer device walls and allowing for a compact apparatus design.
Implementation Method 1
The apparatus comprises a fluid mechanical transfer device for conveying CO2 pellets from the compressing device to the delivery device
Implementation Method 2
The transfer device is arranged or formed between the compressing device and the delivery device
Data Source
AI summary
The invention relates to an apparatus for producing, in particular high-strength, CO2 pellets from CO2 snow, in particular for a cleaning appliance for blasting surfaces to be treated with a mixed stream of a pressurized gas and CO2 pellets, wherein the apparatus comprises a compressing device for compressing CO2 snow to form CO2 pellets and a delivery device for delivering the CO2 pellets into a pressurized gas stream, wherein the apparatus comprises a fluid mechanical transfer device for conveying CO2 pellets from the compressing device to the delivery device and wherein the transfer device is arranged or formed between the compressing device and the delivery device.Furthermore, an improved cleaning appliance and an improved method for producing CO2 pellets from CO2 snow are proposed.


