Introduction to the principle of ultrasonic disperser

Ultrasonic disperser is to directly place the particle suspension to be treated in the ultrasonic field and "irradiate" it with high-power ultrasonic waves. It is a high-strength dispersion method.

Principle:

Ultrasonic dispersion refers to the process of dispersing and deagglomerating particles in the liquid through the "cavitation" effect of ultrasonic waves in the liquid with the liquid as the medium.

Ultrasonic technology, as a physical means and tool, can produce various extreme conditions in liquids. This phenomenon is called sonochemical action, and the related ultrasonic equipment is called ultrasonic sonochemical equipment (referred to as "sonochemical equipment"). . Ultrasonic dispersion equipment is an application of sonochemical equipment, which can be used for water treatment, solid-liquid dispersion, deagglomeration of particles in liquids, and promotion of solid-liquid reactions.

Structure:

Ultrasonic is composed of three parts: ultrasonic vibration parts, ultrasonic special driving power supply and reaction kettle: ultrasonic vibration parts mainly include high-power ultrasonic transducer, horn, tool head (transmitter head), which is used to generate ultrasonic vibration and transmit the ultrasonic vibration. Vibrational energy is emitted into the liquid. The transducer converts the incoming electrical energy into mechanical energy, ie ultrasound. Its manifestation is that the transducer moves back and forth in the longitudinal direction, and the amplitude is generally several microns. Such amplitude power density is not enough and cannot be used directly. The horn amplifies the amplitude according to the design needs, isolates the reaction solution and the transducer, and also plays the role of fixing the entire ultrasonic vibration system. The tool head is connected with the horn, the horn transmits the ultrasonic energy vibration to the tool head, and then the tool head emits the ultrasonic energy into the chemical reaction liquid.

Application:

It is the use of physical technology to produce a series of conditions close to extremes in the medium of chemical reactions. This energy can not only stimulate or promote many chemical reactions, speed up chemical reactions, but also change the direction of chemical reactions and produce some effects. Sonochemistry can be applied to almost all chemical reactions, such as extraction and separation, synthesis and degradation, biodiesel production, treatment of microorganisms, degradation of toxic organic pollutants, biodegradation treatment, biological cell crushing, dispersion and agglomeration, etc.