Rotating Spray Nozzle Assembly for Uniform Exhaust Gas Scrubbing
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Solution Overview
Problem
Existing exhaust gas treatment devices for rare earth calcination fail to achieve uniform contact between exhaust gas and spray liquid, leading to inadequate treatment efficacy and potential clogging from dust in recycled spray liquid.
Innovation Solution
A treatment device with a sprayer comprising a rotatable nozzle system, a liquid suction assembly with a thermally expandable material, and a dust removal assembly with a flexible dust removal fabric, ensuring uniform gas-liquid contact and preventing dust clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional spray apparatus is used, then the structure is simple, but the exhaust gas cannot come into sufficiently uniform contact with the spray liquid
Solution Approach 1:
The nozzle is made rotatable and is driven by a gear system (toothed ring and gears) to rotate dynamically, allowing the spray direction to change continuously. This dynamic adjustment enables the spray liquid to cover a wider area and achieve more uniform contact with the exhaust gas, resolving the contradiction between uniformity and structural simplicity.
Solution Approach 2:
The spray system is divided into multiple nozzles arranged in a specific pattern, with each nozzle contributing to different zones of the spray chamber. This segmentation allows for more comprehensive coverage and uniform distribution of spray liquid throughout the exhaust gas flow path.
2Reliability
If spray liquid is recycled without dust removal, then the system is simple, but dust in the recycled spray liquid causes clogging of apparatus
Solution Approach 1:
A dust removal device is installed in the spray liquid circulation system to remove dust particles from the recycled spray liquid before it is pumped back to the nozzles. This preliminary cleaning action prevents dust accumulation and clogging in the spray apparatus, ensuring reliable operation while maintaining a relatively simple overall system structure.
3Quantity of substance
If spray liquid is recycled without dust removal, then the system complexity is low, but the amount of dust in the recycled spray liquid increases
Solution Approach 1:
The dust removal device performs preliminary separation of dust particles from the spray liquid in the circulation system. By removing dust before the spray liquid is reused, the concentration of dust in the recycled spray liquid is reduced, preventing accumulation and maintaining treatment effectiveness without requiring complex multiple-stage separation systems.
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
Enhances uniform contact between exhaust gas and spray liquid, improving treatment effectiveness and reducing dust in recycled spray liquid, thereby preventing apparatus clogging.
Implementation Method 1
the rotating impeller is arranged below the toothed ring and configured to drive the second gear to rotate; and wherein the second gear is connected to the rotating impeller, meshes with the meshing teeth, and is configured to drive the toothed ring to rotate
Implementation Method 2
the nozzle is arranged to be more than one, rotatably connected to the input pipe, arranged in a ring shape, and configured to be able to spray the spray liquid into the spray apparatus
Implementation Method 3
enables more uniform contact between the exhaust gas and a spray liquid
Data Source
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AI summary
The present disclosure provides a treatment device for an exhaust gas from rare earth calcination, comprising a spray apparatus in which a sprayer is arranged, the sprayer comprising an input pipe, a nozzle, a toothed ring, a rotating impeller, a first gear, and a second gear, wherein the input pipe is configured to input a spray liquid to the nozzle; wherein the nozzle is arranged to be more than one, rotatably connected to the input pipe, arranged in a ring shape. The treatment device enables more uniform contact between the exhaust gas and the spray liquid.