Positive-Pressure Dust Purification with Staged Cyclone Separation
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Solution Overview
Problem
Existing gas dust removal equipment with negative pressure suffers from uneven flow distribution, severe wear, poor sealing, and potential explosion risks when dealing with dust-containing gas, particularly in industries requiring positive pressure airflow.
Innovation Solution
A dust removal equipment with positive pressure air supply mode, featuring a cyclone device, settling chamber, purifying chamber, and collection and extrusion device, with optimized airflow distribution and sealing to enhance efficiency and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If negative pressure dust removal mode is adopted, then dust removal efficiency is improved, but equipment wear increases and sealing requirements worsen
Solution Approach 1:
The patent inverts the traditional negative pressure dust removal mode to a positive pressure mode. The air supply device generates positive pressure to drive dust-containing gas through the cyclone separator, settling chamber, and purifying chamber, eliminating the need for complex sealing structures and reducing equipment wear while maintaining effective dust removal
2Reliability
If positive pressure air supply mode is adopted, then equipment wear is reduced and sealing is improved, but airflow distribution becomes uneven
Solution Approach 1:
The patent segments the dust removal process into multiple chambers: cyclone separator for primary separation, settling chamber for intermediate separation, and purifying chamber for final purification. Each chamber handles a specific stage of dust removal, ensuring uniform airflow distribution and preventing the uneven flow problems associated with single-chamber positive pressure systems
Solution Approach 2:
The settling chamber acts as an intermediary between the cyclone separator and purifying chamber, receiving pre-separated gas from the cyclone and preparing it for final purification. This intermediate stage balances the airflow and ensures uniform distribution throughout the system, resolving the airflow distribution issues while maintaining positive pressure operation
3Productivity
If positive pressure mode is used for transporting airflow with particles, then dust removal efficiency increases, but explosion risk worsens
Solution Approach 1:
The patent divides the dust removal system into multiple isolated chambers (cyclone separator, settling chamber, purifying chamber) that process dust at different stages. This segmentation prevents the accumulation of dust in large quantities in a single chamber, reducing the risk of explosive dust clouds while maintaining efficient dust removal through the staged process
Solution Approach 2:
The cyclone separator extracts and removes the majority of dust particles from the dust-containing gas in the first stage, significantly reducing the dust concentration before the gas enters the settling chamber and purifying chamber. This extraction of harmful dust particles early in the process minimizes explosion risks while preserving dust removal efficiency
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
Improves airflow distribution, increases dust removal efficiency, and reduces equipment wear and explosion risks by using positive pressure, while ensuring stable operation and effective dust separation.
Implementation Method 1
a cyclone device, which is disposed at one side of the frame, and is arranged with a gas inlet
Implementation Method 2
a cyclone device... arranged with a gas inlet
Implementation Method 3
a settling chamber, which is disposed to communicate with the cyclone device
Implementation Method 4
a purifying chamber, which is disposed at the other side of the frame, and is communicated with the settling chamber
Implementation Method 5
a collection and extrusion device, which is disposed at a bottom end of the frame, and is communicated with a lower end of at least one of the cyclone device, the settling chamber and the purifying chamber, and is used to extrude and recycle a dust collected therein
Data Source
AI summary
An equipment for purifying dust-containing gas includes: a frame; a cyclone device disposed at one side of the frame and having a gas inlet; a settling chamber disposed to communicate with the cyclone device; a purifying chamber; a collection and extrusion device, the settling chamber and the purifying chamber, and used to extrude and recycle a dust collected therein. The dust-containing gas enters the cyclone device from the gas inlet, and after at least a portion of dust is removed from the gas by the cyclone device, in the settling chamber, at least a portion of the dust is settled down with collision under an action of inertial force carried by the dust-containing gas, and then, the gas enters the purifying chamber to be purified, and then exits from an outlet of the purifying chamber.