The copyright of this article belongs to Siansonic Technology.The production is prohibited without permission.
Ultrasonic atomization technology is widely used not only in spraying but also has significant applications in powder preparation. ultrasonic spray pyrolysis is a technique for preparing ultrafine powders. It involves atomizing a precursor solution using ultrasonic atomization technology, and then passing it through a tubular furnace for high-temperature thermal decomposition to produce ultrafine powders. The ultrasonic spray pyrolysis nozzle is specifically designed for ultrasonic spray pyrolysis.
Figure 1. Siansonic's ultrasonic spray pyrolysis nozzle
Ultrasonic spray pyrolysis typically introduces a metal salt solution (precursor solution) in a fine mist into a high-temperature atmosphere. This causes the solvent to evaporate and the metal salts to thermally decompose, resulting in supersaturation and the precipitation of a solid phase followed by a series of physicochemical processes such as particle drying, thermal decomposition, and sintering. This ultimately produces a microfine powder. Compared to the solid-phase method for powder preparation, the ultrasonic spray pyrolysis, using a liquid precursor, ensures a highly uniform distribution of components and precise control over the stoichiometric ratio. It is especially suitable for preparing multicomponent composite powders. Additionally, microfine powder is derived from the drying of suspended fine droplets. Particle size is controllable and uniformly distributed, eliminating the need for subsequent washing or grinding. This also ensures the high purity of the product. The ultrasonic spray pyrolysis nozzle, a key component of ultrasonic spray pyrolysis, utilizes ultrasonic atomization technology to atomize the precursor solution. By adjusting the ultrasonic frequency, the particle size of the atomized particles can be controlled, thus meeting different powder preparation needs.
The HZ series ultrasonic spray pyrolysis nozzle features a forced cooling design that enables it to operate in high-temperature environments. It also incorporates a temperature sensor for real-time monitoring of the working temperature of the ultrasonic nozzle. Additionally, its unique flange design allows it to connect with various models of standard tubular furnaces.
Siansonic Technology offers customers a range of solutions for the preparation of ultrafine powders, from research and development through to pilot scale and mass production. These solutions include ultrasonic atomization technology, high-temperature reaction furnaces, and electrostatic collection systems.
