Two-Media Spray Nozzle for Dust Mixer Atomization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The mixing of water and dust in mixers used for removing gaseous pollutants from process gases is often inefficient, leading to less effective removal of pollutants and potential material clumping due to unintentional water spray on internal structures.
Innovation Solution
A two-media spray lance and nozzle combination that efficiently supplies liquid in a specific spray pattern, allowing for varying water and air pressures without altering the spray angle or pattern, thus preventing water from unintentionally spraying onto internal structures and maintaining efficient pollutant removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If water pressure is increased to improve mixing efficiency, then the spray load increases and water may unintentionally spray onto internal structures causing material clumping, but mixing efficiency decreases
Solution Approach 1:
The nozzle is designed with specific geometric features including a conical deflection surface with a defined half-angle (α), sharp lateral edges, and a spray angle controlling rim. These local geometric qualities direct the water spray precisely onto the dust material while preventing contact with internal mixer structures, thereby maintaining high mixing efficiency without causing material clumping on internal surfaces.
Solution Approach 2:
The nozzle design allows for dynamic adjustment of water pressure while maintaining a substantially constant spray angle. The geometric features (deflection surface angle, rim position) create a self-regulating spray pattern that adapts to pressure variations, enabling efficient mixing across a range of operating conditions without unintentional spraying onto internal structures.
2Adaptability or versatility
If water pressure varies to match mixer liquid demands, then water supply flexibility improves, but spray angle and spray pattern change affecting mixing quality
Solution Approach 1:
The nozzle is designed with specific geometric parameters (deflection surface half-angle α, spray angle controlling rim position and angle) that create a spray pattern insensitive to pressure variations. By carefully selecting these geometric parameters, the nozzle maintains substantially constant spray angle and pattern across a wide range of water pressures, enabling flexible water supply adjustment without compromising mixing quality.
Solution Approach 2:
The nozzle geometry creates a dynamic spray system that automatically adapts to pressure changes while maintaining consistent spray characteristics. The deflection surface and controlling rim work together to regulate the spray pattern dynamically, ensuring that mixing quality remains stable even as water pressure varies to match mixer demands.
3Object-affected harmful factors
If spray load is reduced to prevent water from reaching internal structures, then material clumping is prevented, but mixing efficiency decreases
Solution Approach 1:
The nozzle incorporates specific local geometric features including a spray angle controlling rim positioned at a defined distance from the deflection surface, and lateral edges with specific angles. These local qualities create a confined spray trajectory that delivers sufficient water to the dust material for efficient mixing while preventing water from reaching internal mixer structures, thus avoiding material clumping.
Solution Approach 2:
The nozzle design enables operation across a dynamic range of water pressures while maintaining a substantially constant spray angle and pattern. This allows the system to achieve efficient mixing at lower spray loads that prevent material clumping, while the geometric features ensure consistent performance across varying operating conditions.
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 ensures efficient moistening of absorbent materials with minimal water spray on internal structures, allowing for consistent pollutant removal and reduced risk of material clumping, while maintaining a stable spray pattern across a wide range of water pressures.
Implementation Method 1
the nozzle atomizes the liquid supplied to it to form an essentially flat spray of liquid droplets
Implementation Method 2
air flows from the air supply through the water supply pipe interior to disperse the water flowing therethrough
Data Source
AI summary
A two media spray lance (38) and nozzle (60) useful for moistening at least a portion of absorbent material present in a mixer (24). The nozzle (60) includes a central body (64) with a connecting portion (68) for connecting the nozzle (60) to the two media spray lance (38) for a supply of liquid and gas thereto, and an atomizing portion (74). The atomizing portion (74) delivers droplets of liquid to the absorbent material present in the mixer (24) to obtain moistened absorbent material.