Introduction

Ultrasonic dispersion equipment is a critical tool in various industries for the effective dispersion of particles in liquids. It leverages ultrasound waves to break particle agglomerates in a liquid medium, enhancing product characteristics such as solubility, reactivity, and stability.

Principles of Ultrasonic Dispersion Equipment

Ultrasonic dispersion equipment operates on the principle of cavitation. This phenomenon occurs when ultrasound waves generating frequencies typically between 20 kHz and 1 MHz create high-pressure and low-pressure cycles in the liquid medium. The alternating cycles lead to the formation and violent collapse of microscopic cavitation bubbles, generating intense shear forces.

Mechanism of Cavitation

The rapid implosion of cavitation bubbles causes micro-jets and shock waves, which help in breaking particle agglomerates and deagglomeration of nanoparticles. This effect is particularly useful for processes that require a uniform suspension of particles.

Key Parameters in Ultrasonic Dispersion

The efficiency of ultrasonic dispersion is influenced by several critical parameters:

• Frequency: The operating frequency, usually between 20 kHz and 50 kHz, affects the size of cavitation bubbles and energy dissipation.
• Amplitude: Higher amplitudes increase the intensity of cavitation, leading to more effective dispersion.
• Power: Power input (typically 50 to 500 watts) determines the energy available for dispersion, affecting the rate and uniformity of the process.
• Temperature: Elevated temperatures may reduce viscosity, aiding in the dispersion process, though excessive heat can reduce cavitation intensity.
• Time: Longer ultrasonic treatment times generally improve dispersion but must be optimized to prevent degradation of sensitive materials.

Quantitative Analysis

Empirical studies have shown that dispersion efficiency can be quantified by measuring particle size distribution before and after ultrasonic treatment. For example, an initial mean particle size of 10 µm can be reduced to 500 nm, achieving a more homogenized mixture.

Powersonic Company Solutions

Powersonic offers advanced ultrasonic dispersion systems tailored to various industrial applications, including chemical processing, pharmaceuticals, and food & beverages. Their flagship model, the Ultrasonic Processor X500, operates at frequencies ranging from 20 to 30 kHz with a maximum output power of 1,000 watts.

Product Features

• High Precision: Adjustable frequency and amplitude settings allow for precise control over dispersion quality.
• Scalability: Systems range from lab-scale units to industrial setups capable of processing up to 10,000 liters per hour.
• Energy Efficiency: Designed to minimize energy usage while maximizing output.
• Customization: Modular designs enable adaptation to specific process requirements.

References

1. Suslick, K. S. (1988). Homogeneous Sonochemistry: The Chemical Effects of Ultrasound. Ultrasound in Chemistry, Springer.
2. Crum, L. A. (1995). Acoustic Cavitation: The Pluses and Minuses. Ultrasonics, 33(4), 175-181.
3. Powersonic Corporation. (2023). Ultrasonic Processor X500: Technical Specifications. Retrieved from Powersonic Company website.