Cyclone Dust Generator With Humidity and Concentration Control
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Solution Overview
Problem
Existing dust generation devices struggle to produce fine dust particles with precise concentration control and humidity adjustment, leading to inefficiencies and high costs in simulating mine dust environments, particularly in coal mines.
Innovation Solution
A precise concentration generating device using a smoke cake particle generator with integrated crushing and cyclone chamber, combined with high-temperature heating and airflow regulation, to produce uniformly sized dust particles with adjustable humidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If smoke cake combustion is used to generate dust particles, then fine dust particles with size less than 10 μm can be produced, but the concentration of particulate matter cannot be accurately adjusted and the process is uncontrollable
Solution Approach 1:
The patent changes the physical state parameters of water (liquid to vapor) by controlling temperature and pressure, which in turn controls the concentration of dust particles in the airflow. By adjusting the water injection amount and heating temperature, precise control over dust concentration is achieved without combustion
Solution Approach 2:
The patent replaces the chemical combustion process with a physical phase change process (water evaporation). This substitution eliminates the uncontrollable combustion reactions while maintaining the ability to generate fine particles, providing a controllable and safe alternative
2Quantity of substance
If grinding processes (crusher, vibration mill, ball mill) are used to generate dust particles, then dust can be produced, but the average particle size cannot achieve less than 10 μm and the process is complex and time-consuming
Solution Approach 1:
The patent utilizes phase transition of water from liquid to vapor to generate fine dust particles. The rapid evaporation and condensation processes naturally produce particles in the desired size range (less than 10 μm) without requiring mechanical grinding, thus achieving both high efficiency and fine particle size
Solution Approach 2:
The patent extracts and utilizes the evaporative cooling and condensation effects from water injection, separating this physical process from any mechanical grinding operations. This extraction of the phase change mechanism provides a direct path to fine particle generation without the complexity of multiple grinding stages
3Productivity
If liquid smoke agent is used as raw material, then dust particles can be generated, but a large amount of e-liquid is consumed, cost is high, and humidity cannot be controlled
Solution Approach 1:
The patent uses water as a disposable consumable that is inexpensive and readily available. Water is injected, evaporates, and the vapor condenses to form dust particles. The used water vapor simply disperses into the atmosphere, eliminating the need to manage expensive e-liquid inventory and disposal
Solution Approach 2:
Water serves multiple functions in the system: it provides the phase change mechanism for particle generation, controls humidity through evaporation, and acts as a cooling medium. This multi-functionality replaces the single-purpose e-liquid while adding beneficial side effects
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 device efficiently generates fine dust particles with controlled concentration and humidity, reducing operational complexity and costs, suitable for experimental simulation requirements.
Implementation Method 1
a high-temperature heating tube is arranged inside the cyclone chamber, and the high-temperature heating tube is used to heat the smoke cake particles to a preset temperature
Implementation Method 2
the smoke cake particles are combusted to generate dust particles
Implementation Method 3
an initial end of the material conveying pipeline is connected to a material conveying fan... the smoke cake particles are blown into the cyclone chamber
Implementation Method 4
a terminal end of the material conveying pipeline is connected to a cyclone chamber of a cyclone cylinder
Implementation Method 5
the cyclone chamber generates a swirling airflow... the dust particles and combustion residues are separated
Implementation Method 6
at least four nozzles extend into the cyclone chamber of the cyclone cylinder... adjust the humidity of the airflow containing the dust particles
Data Source
AI summary
Provided are a precise concentration generating device and a dust generation simulation method for dust particles, wherein the device includes a smoke cake particle generator and a water tank. The top of the smoke cake particle generator is equipped with a feeding port, and the bottom is equipped with a discharging port. The discharging port is connected to a material conveying pipeline, and the initial end of the material conveying pipeline is connected to a material conveying fan. The end of the material conveying pipeline is connected to the cyclone chamber of the cyclone cylinder, and a high-temperature heating tube is set at the bottom of the cyclone chamber. The top of the cyclone cylinder is equipped with a dust outlet, and the bottom of the cyclone cylinder is equipped with a slag discharge port.