Multi-Mechanism Wet Dust Removal Apparatus with Water Circulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dust removal technologies face issues such as short ash removal periods, filter bag blockages, high maintenance costs, limited working environments, flammability, low efficiency, and excessive water consumption, leading to safety hazards and environmental concerns.
Innovation Solution
A multi-mechanism wet dust removal apparatus that circulates water, comprising a dust collecting device with a coaxial multi-ring nozzle, a dust settling and air-water separation device with annular gas-liquid diversion ring grooves, and a water circulating system, which integrates dust collection, settling, separation, and discharging mechanisms to enhance efficiency and reduce water usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If traditional wet dust removal is used, then dust removal function is provided, but water consumption is excessive and sewage treatment is required
Solution Approach 1:
The patent implements a water circulation system where water is continuously recovered and reused. The sedimentation tank separates dust from water, and the cleaned water is pumped back to the spray nozzles for repeated use, eliminating sewage discharge and reducing water consumption
2Reliability
If bag type dust removal is used, then dust filtration is achieved, but filter bags block easily and maintenance cost is high
Solution Approach 1:
The patent replaces the mechanical filtration system (filter bags) with a wet separation system using spray nozzles and sedimentation tanks. Dust-laden air is washed by water spray, and dust settles in the tank, eliminating filter bags and their associated blockage and maintenance issues
Solution Approach 2:
The patent uses hydraulic principles with water spray from nozzles to capture dust particles, and the water-dust mixture settles in the sedimentation tank. This hydraulic separation system replaces the mechanical filtration approach, providing continuous operation without bag replacement
3Productivity
If electrostatic dust removal is used, then dust collection is achieved, but working environment is limited and explosion risk exists
Solution Approach 1:
The patent uses water as a safe alternative to electrostatic fields. The water spray captures dust particles through impaction and adhesion, and the sedimentation tank allows dust to settle. This converts the potential harm of electrostatic explosion into a safe wet separation process, especially suitable for combustible dust
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 apparatus achieves high dust removal efficiency, prevents explosion hazards, reduces maintenance needs, conserves energy, and minimizes environmental impact by recycling water, eliminating sewage treatment, and allowing simultaneous ash and dust removal without compressed air.
Implementation Method 1
the impact is generated by the relative movement of dust and water droplets
Implementation Method 2
the impact is generated by the relative movement of dust and water droplets, and condensation is generated
Implementation Method 3
the water droplets contained in gas are settled from the overhead of air-water separation chamber outer barrel under the function of centrifugal force and gravity
Implementation Method 4
the water droplets contained in gas are settled from the overhead of air-water separation chamber outer barrel under the function of centrifugal force and gravity
Implementation Method 5
The dust discharging device is arranged as an inclined upward spiral conveying pipe structure
Data Source
AI summary
A multi-mechanism wet dust removal apparatus that circulates water and removes ambient dust, and a dust removal method. The multi-mechanism wet dust removal apparatus includes a dust collecting device, a dust settling and air-water separation device, a water circulating device, and a dust discharging device. The dust removal is achieved by dust collecting, dust settling, air-water separation and dust discharging. Water can be recycled and the dust removal method integrates multiple dust removal mechanisms.