Dust Attachment Mechanism:

Dust of the same size adheres to the surface of an object for a number of reasons: free-fall, electrostatic adsorption, moisture adherence, grease adherence, and so on. Most of the dust attaches to the surface of the object due to complex reasons. From the point of view of dust removal, sometimes 1 micron of free-fall dust can be removed, while dust containing grease components of 30 microns in size cannot be removed. Electrostatic adsorption dust absorbs moisture in the air containing Na, K, and other components, then dries and physically connects to the contact surface, thereby changing the air adhesion. Therefore, it is unscientific to use the percentage of data that removes more than a few micrometers to indicate the dust removal effect of the dust removal head, and it is also incorrect to ignore the surrounding environment and dust adsorption causes to demand a harsh dust removal rate.

Dust adhesion dust removal force:

The same diameter of dust, due to different reasons for adsorption, the adsorption force of the product is also different, generally from a few millidaynes to dozens of dyne (dyne, dyne; the mass of 1g of the object, the force required to produce 1cm/s2 acceleration).

Overall:

1)Particles with a size of 10 micrometers: free-fall adhesion force is about 0.1;

2) Intermolecular gravitational force is about 3-5;

3)Electrostatic adsorption (200V) has an attractive force of about 3-5;

4)Attractive force of about 5-7 in a 50% humidity environment;

5) attraction of fingerprints in case of grease is about 10-15;

6) physical connection adhesion is about tens to hundreds;

因此，当1-5等条件是主要原因时，随着时间的推移，它变成了6的物理状态。因此，为了有效地去除灰尘，灰尘附着时间越短，越容易去除。根据上述原因分析，我们的超声波除尘设备对1-4个原因的吸附作用明显，而5-6个原因的粘附作用不合适。人耳能听到的声波频率为20 ~ 20000Hz。当声波的振动频率大于20000赫兹时，人耳听不见。超声波因其频率下限而得名，该频率下限约等于人类听觉的上限。因此，我们把频率高于20,000赫兹的声波称为 “超声波”。当超声波在空气中传播时，它们会来回推动空气中的颗粒并对其起作用。超声波的功率是表示波的工作速度的物理量。在相同的强度下，声波的频率越高，其功率就越高。同时，附着在薄膜表面的含尘介质层在强气流的作用下被分解，被困在气流层中的微小颗粒在强真空的作用下被分离出来，被吸入真空负压室。