Ultrasound generators and transducers produce high-frequency ultrasound. Ultrasound causes ultrasonic cavitation effect in materials to be treated. Because of the dense area generated by the propagation of ultrasound, negative pressure can produce many cavities in the medium. These cavities expand and explode with the change of high frequency pressure of vibration. The instantaneous pressure can reach thousands or even tens of thousands of atmospheric pressure when the vacuum chamber explodes. Therefore, when the vacuum chamber explodes, the material can be shattered.
On the other hand, because of the strong disturbance caused by ultrasonic wave in liquid, the particles produce a great speed, and then collide with each other or with the container to smash the solid particles or biological tissues in liquid. After ultrasonic grinding, the particle size is less than 4um, and the particle size distribution is uniform, but the production capacity is low.
Principle, Operating Regulation, Usage Method, Characteristics, Maintenance and Maintenance of Ultra-fine Crusher
Working Principle of Ultra-fine Crusher
Ultra-micro grinder is a high-speed rotation of grinding disc. Under the action of centrifugal force, materials are crushed by impact of hammer head mounted on the grinding disc, and then rotated to the surrounding gear ring at a very high speed. The air flow between the hammer head and gear ring changes instantaneously due to the change of tooth surface. Material is subjected to alternating stress in this gap, and is further thoroughly crushed under this repeated action. The crushed material enters the crushing and classifying chamber, and is classified by the rotating classifying wheel, which is balanced by the aerodynamic force and centrifugal force. The separated coarse material returns to the crushing chamber from the bottom of the inner chamber of the guide hood and is crushed repeatedly, so that the fineness of the material (finished product) is absorbed into the classifying impeller and is crushed out. Material room.
Crushing and separating are the main functions of the crusher, and are also the key factors affecting the crushing efficiency and energy consumption. According to the study of grinding principle at home and abroad, the shape and size of hammer head, the gap between hammer head and gear ring, and the classification effect will have a significant impact on grinding efficiency and energy consumption.
Structural Principle of Superfine Crusher
Ultra-micro grinder consists of base, drum, grinding cutter, fine grinding trap, transmission system and other components. The machine is a vertical drum structure. Konjac flour is fed by a winch. When the material enters the crushing chamber, it boils like a whirlpool under the action of a negative pressure fan. Under the driving force of the drum, the crushing cutter rotates at high speed and the boiling Konjac flour intersects with the boiling Konjac flour for high-speed cutting. The cut Konjac flour acts as a fine powder collector. The standard konjac flour enters the cyclone separator to separate the material, and the substandard konjac flour continues to cut at high speed until the required fineness is reached before entering the cyclone separator to separate the material.
Performance characteristics of ultrafine grinder
The drive and classifier of the machine are all regulated by frequency conversion, and the operation is stable.
The unit is continuously produced from feeding, crushing to grading and screening, with few turnaround links. Reducing Labor Intensity of Workers
The crushing cutter is made of alloy material and quenched by high frequency. It has the advantages of high hardness, high wear resistance and long service life.
The unit adopts frequency converter classifier with adjustable crushing fineness, which meets the requirements of users for product fineness.
The whole machine's electrical control system is optimized and easy to operate and maintain.
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