Discharge Nozzle Assembly for Dust-Free Solid Particulate Transfer
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Solution Overview
Problem
Conventional methods for transferring solid particulate matter, such as catalyst pellets, result in significant dust generation during loading, posing health hazards and requiring protective gear due to inadequate dust containment and interference with particle delivery speed by suction forces.
Innovation Solution
A discharge nozzle assembly with perforations and a regulated suction force, connected to a dust removal conduit, diverts dust particles away from the discharge opening and into a collection container, allowing for controlled airflow to prevent dust escape and ensure efficient particle transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If vacuum-assisted suction force is used to trap dust particles during material transfer, then dust containment is improved, but the suction force interferes with the speed of particle delivery
Solution Approach 1:
The discharge nozzle is divided into separate functional zones: a dust collection region with vacuum suction and a material discharge region with pressurized airflow. This segmentation allows dust particles to be trapped by vacuum while catalyst pellets are propelled forward by air pressure, eliminating the interference between suction force and delivery speed
Solution Approach 2:
Different quality parameters are applied to different parts of the nozzle: the dust collection portion uses vacuum suction with specific velocity thresholds (particles less than 0.04 inches in diameter are trapped), while the discharge portion uses pressurized airflow to maintain material delivery speed. This local differentiation resolves the contradiction between dust containment and productivity
2Productivity
If pressurized airflow is used to transfer solid particulate matter, then transfer efficiency is improved, but dust particles escape into the loading area creating health hazards
Solution Approach 1:
A dust collection container with vacuum suction acts as an intermediary between the pressurized transfer system and the loading area. The vacuum system creates a controlled environment at the discharge nozzle, trapping dust particles before they can escape into the loading area, while allowing the pressurized airflow to continue efficiently transferring material
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 contains dust within the transfer system, reducing health hazards and maintaining the speed of particle delivery by regulating suction force, ensuring safe and efficient loading operations.
Implementation Method 1
A vacuum-assisted suction force is created in the dust collection container to facilitate entrapment of dust particles generated during transfer of the solid material
Implementation Method 2
moving the pellets from the vessel to a loading container... with the assistance of pressurized airflow
Data Source
AI summary
An assembly for transferring solid particulate matter has a pressurized vessel for retaining a pre-determined quantity of the solid material. A transfer conduit connected to the vessel carries the solid material to a loading vessel, be it a processing tank, a storage vessel, or any other similar container. A discharge nozzle carried by a distant end of the transfer conduit has a plurality of perforations that allow removal of the dust particles by suction from the discharge nozzle. A separate dust removal conduit is secured immediately adjacent to the discharge nozzle for removal of the dust particles away from the discharge nozzle.