JPH0230285B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an ultrasonic device that uses ultrasonic waves, and more particularly, to an ultrasonic device that effectively utilizes ultrasonic oscillation energy and has a large effect. . [Prior Art] Generally, it is well known that ultrasonic waves are used in various overoperations. At this time, if the ultrasonic oscillation chip is exposed in the air, almost no ultrasonic waves will penetrate the liquid, so for safety reasons, the entire oscillation chip is usually completely immersed in the liquid. [Problems to be Solved by the Invention] However, according to the studies of the present inventors, such a conventional method results in a considerable loss of ultrasonic oscillation energy. In other words, the ultrasonic oscillation horn and the oscillation chip generally have different shapes, and the oscillation chip is often larger. Because the ultrasonic waves are transmitted to It was found that the capacity of the equipment had to be increased, resulting in considerable equipment and energy losses. [Means for Solving the Problems] As a result of intensive studies to solve such problems, the inventors of the present invention found that when oscillating ultrasonic waves, if the ultrasonic oscillation surface is inside the glass body, the ultrasonic oscillation surface Focusing on the fact that the oscillation energy is much lower than when it is in a liquid, we immerse only the lower part of the ultrasonic oscillation chip, which is effectively used for overtreatment, into the liquid, making it effective for overtreatment. The inventors have discovered that by placing the upper part of the ultrasonic oscillation chip, which is not utilized, in a gas body, it is possible to significantly improve the efficiency of ultrasonic oscillation energy for the same overcapacity, and have arrived at the present invention. That is, an object of the present invention is to provide an ultrasonic device having a large throughput capacity by effectively utilizing ultrasonic oscillation energy. An ultrasonic filtration device having a material layer provided therein, an ultrasonic oscillation chip provided facing the surface of the material layer, and an overtreated material extraction conduit leading from the back side of the material layer to the outside of the filtration machine body. A gas chamber is provided in the ultrasonic device body, and the ultrasonic oscillation chip is immersed in the object in the gas chamber, and a liquid level is maintained so that the oscillation side tip of the ultrasonic oscillation chip is constantly immersed in the object. This is achieved by an ultrasonic device characterized by having an adjustment mechanism, and even more preferably, as the simplest method of the liquid level adjustment mechanism, the liquid level adjustment mechanism is provided inside the ultrasonic device body. We propose a method consisting of a liquid level adjustment insertion tube that is inserted and opens to a desired liquid level. Hereinafter, the present invention will be explained in detail. In the present invention, the analyte may generally be various liquids containing suspended solids to be removed, but in particular, the present invention is applicable to, for example, carbon black, dyes and pigments, It is a liquid containing cohesive fine particles such as fine silica, and is most effective when selectively removing only solid foreign matter other than the fine particles from this slurry. Hereinafter, explanation will be given based on the drawings. FIG. 1 is a schematic vertical cross-sectional view showing an example of the device of the present invention, in which 1 is the coating device body, 2 is the material body, 3 is the material layer, and 4 is the coating device body. body band, 5 is overprocessed body band,
Reference numeral 6 denotes a tube for introducing the treated body, 7 denotes a tube for extracting the treated body, and 8
is an ultrasonic generator, 9 is an ultrasonic oscillation horn, 10
11 is an ultrasonic oscillation chip, 11 is a gas chamber, 12 is an insertion tube for liquid level adjustment, 13 is a gas supply pipe, and 14 is a slit provided on the side surface of the oscillation chip. The analyte is supplied to the analyte zone 4 of the analyte main body 1 from the analyte introduction pipe 6, and the ultrasonic wave is irradiated onto the material layer 3 by the ultrasonic oscillation chip 10, so that the material is captured on the material layer 3. Overtreatment is performed while applying vibration and dispersion force to the solids in the target object. The obtained overtreated body passes through the overtreated body area 5 and is discharged from the overtreated body extraction pipe 7 to the outside of the machine. The material that has not passed through the material layer 3 is discharged to the outside of the machine through the liquid level adjustment insertion tube 12. The amount of waste material discharged outside the machine is 1 to 5 times the amount of overprocessed material.
It is better to double the amount. When removing suspended solid particles from the subject, the liquid is taken out from the extraction tube 7 and the concentrated slurry is discharged from the insertion tube 12.
In addition, when removing large solid foreign matter other than cohesive fine particles from the analyte, a purified slurry containing fine particles is removed from the extraction tube 7, and a analyte containing concentrated solid foreign matter is removed from the insertion tube 12. taken out. Note that this liquid level adjustment insertion tube 12 may be inserted upward from the bottom of the device main body 1. Since the liquid level of the object is adjusted by the liquid level adjustment insertion tube 12, a gas chamber 11 is formed above the object zone 4. The gas forming the gas chamber is not particularly limited, but a non-condensable gas is preferred, and air or the like is conveniently employed. In order to accurately adjust the liquid level, the pressure inside the gas chamber may be used to push out the object above the opening of the insertion tube for adjusting the liquid level. It is sufficient that the gas pressure supplied to the filter is slightly higher than the pressure inside the filter main body 1. More preferably, the supply and discharge of gas from the gas supply pipe 13 can also be controlled via a pressure adjustment mechanism that appropriately adjusts the pressure in the gas chamber 11 in conjunction with the liquid level of the subject. Such an insertion tube for adjusting the liquid level adjusts the liquid level by opening the discharge tube of the subject body at an appropriate position above the lower end of the oscillation chip. It will be understood that the present invention is not limited to this method, and that various well-known methods may be employed as a liquid level adjustment mechanism. Also, due to the characteristics of ultrasonic waves, if the length of one side of the ultrasonic oscillation chip exceeds 1/4 times the wavelength of vibration in the material of the ultrasonic oscillation chip,
Since abnormal vibrations are likely to occur in the ultrasonic oscillation chip, slits are provided in the ultrasonic oscillation chip to suppress this abnormal vibration, but the upper and lower surfaces of the slits provided in the ultrasonic oscillation chip also serve as ultrasonic oscillation surfaces. Therefore, as the length of one side of the ultrasonic oscillation chip becomes longer, the amount of ultrasonic energy that is not effectively utilized for overtreatment increases. When a slit is provided in the ultrasonic oscillation chip, if the liquid level adjustment position is between the lower end surface of the ultrasonic oscillation chip and the lower end surface of the slit provided in the ultrasonic oscillation chip, ultrasonic waves that are not effectively utilized for overtreatment can be removed. Energy can be minimized. In the drawings, an explanation has been given of an ultrasonic device equipped with a rectangular ultrasonic oscillation chip, but the present invention is not particularly limited to the shape of the oscillation chip, and can be applied to an ultrasonic device equipped with a cylindrical oscillation chip. It is. [Effects of the Invention] The device of the present invention can reduce the ultrasonic oscillation energy required to obtain the same processing capacity as conventional ultrasonic devices, and as a result, the ultrasonic oscillation energy This solves the difficulty in increasing the size of an ultrasonic device due to the limited oscillation energy, and it is possible to manufacture a large-sized ultrasonic device. [Example] In the device shown in Fig. 1, the ultrasonic oscillation frequency
19KHz, ultrasonic oscillation width 20μm The liquid sealed inside the device is water, and the power consumed by the ultrasonic generator is
Table 1 shows the results regarding the influence of the pressurizing force inside the filter device and the influence of the liquid level (measured at A, B, and C shown in Figure 2). 【table】

[Brief explanation of drawings]

FIG. 1 is a schematic vertical cross-sectional view of the device of the present invention, and FIG. 2 is an enlarged front view of the ultrasonic oscillation chip shown in FIG. 1: main body, 2: material body, 3: material layer,
4: Subject zone, 5: Overtreated body zone, 6: Subject introduction pipe, 7: Overtreated body extraction pipe, 8: Ultrasonic generator, 9: Ultrasonic oscillation horn, 10: Ultrasonic oscillation Chip, 11: Gas chamber, 12: Insertion tube for liquid level adjustment, 13: Gas supply tube, 14: Slit.

Claims (1)

[Scope of Claims] 1. A main body of the transducer having an analyte supply conduit, a material layer provided within the main body, an ultrasonic oscillation chip provided facing the surface of the material layer, and a back surface of the material layer. In an ultrasonic device having an overtreated body extraction pipe leading from the side to the outside of the body of the body, a gas chamber is provided in the body of the body, and the ultrasonic oscillation chip is immersed in the body in the gas chamber; An ultrasonic device characterized by being provided with a liquid level adjustment mechanism for constantly immersing the oscillating side tip of an ultrasonic oscillating chip in a subject. 2. The liquid level adjustment mechanism set forth in claim 1 comprises a liquid level adjustment insertion tube inserted into the filter body and opened to a desired liquid level. Sonic wave device.