JPS6283062A - Spraying method and apparatus therefor - Google Patents

Abstract

PURPOSE:To form a large number of uniform particles, by injection a substance to be treated from a large number of small holes bored in the fixed side wall of a hermetically closed chamber along with gas by utilizing pressure difference across said side wall and, at the same time, intermittently blocking said small holes. CONSTITUTION:A liquid 14 to be treated in a storage tank 11 is sucked up to the end of a pipe 12 and a motor 5 is driven to rotate a rotary disc 6. The liquid 14 to be treated at the end of the pipe 12 is sucked in a pump chamber 8 by the rotation of a sucking pump blade 10 to reach small holes 7 through fine grooves 9 by centrifugal force to be adhered as a membrane. When a hermetically closed chamber 2 is filled with compression air through a pressure air pipe 13 and the small holes of the rotary disc 6 during rotation positionally coincide with that of the fixed side wall 1a of said chamber 2, compressed air is injected through the small holes to inject the membrane of each small hole 7 to the outside of the apparatus main body 1. When the rotational speed of the rotary disc 6 increases, the outside of each small hole 3 comes to an ultrasonic region.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a spraying method and an apparatus for the same, which can disperse or re-agglomerate liquid, granules, powder, etc. into fine particles.

(Prior Art) Conventional devices for atomizing a liquid into fine particles and atomizing it into a gas include a sprayer and an ultrasonic generator using an electrostrictive vibrator.

(Problems to be Solved by the Invention) In the above-mentioned spray, the sprayed particles are irregular, and the dispersion and condensation are uncertain. In addition, in the case of an ultrasonic generator using an electrostrictive vibrator, the output of the diaphragm must be increased for large molecules or substances with high viscosity, and the material to be treated is mainly water, so other solutions are not suitable. do not have. Furthermore, there are limits to the range of objects to be treated, such as conductive materials being unsuitable. Furthermore, since the output of the diaphragm must be increased, there is a limit to the amount of spray that can be applied. Furthermore, the size of the spray particles cannot be controlled at any time.

(Means for Solving the Problems) The present invention has been made in view of these points, and the present invention has been made in view of these points. The material to be treated, such as granules, is ejected along with the gas to the outside of the fixed side wall due to the pressure difference between the inside and outside of the fixed side wall, and the appropriate shielding body is moved to intermittently shield each small hole. , the material to be treated and the gas are intermittently cut off, and the material to be treated is ejected as a large number of particles from each small hole.

Note that the above-mentioned gases include those containing aerosols such as vapor, solid, and powder.

The apparatus used in this method is as shown in FIG.
A rotary side plate that rotates is provided in the sealed chamber A, and a large number of through holes E1F are bored in the stationary side wall B and the rotating side plate at positions facing each other, so that each of the above small through holes E1F are bored from the storage tank G of the material to be treated. A pump device H is provided for guiding the object to be processed between the fixed side wall B having the hole E1F and the rotating side plate, and a means I is provided for inserting compressed gas into the rotating side plate in the sealed chamber A. It is.

(Function) In the above-mentioned apparatus, the liquid to be treated, which is the liquid to be treated, is put into the storage tank G, and the pump device H is operated, and the rotational drive source C is rotated. Furthermore, compressed air is inserted into the sealed chamber A. As a result, the liquid to be treated J enters between the fixed side wall B and the rotating side wall, and the liquid to be treated J enters the small hole F of the rotating side plate as shown in Fig. 2 (a).
is applied as a thin film, but unless this small hole F and the small hole E in the fixed side wall B are in the same position, the compressed gas will not be ejected outward from the sealed chamber A, and therefore the liquid to be treated J will not be ejected either. When the rotating side plate rotates and the small holes E and F coincide as shown in Fig. It becomes a particle. Then, as shown in FIG. 2()→, the rotating side plate further rotates, and the small hole E is immediately closed by the rotating side plate.

In this way, in this invention, when the liquid to be treated and the gas are spouted out from the small hole E in the fixed side wall B of the sealed chamber A, the shielding body such as the rotating side plate intermittently cuts the small hole E, so that the liquid to be treated is The liquid is ejected as particles of uniform size. Moreover, since a large number of small holes B1F are provided, a large amount of particles are ejected.

The particles and gas ejected from the small holes form a waveform as shown in FIG. The height of this waveform is determined by the pressure of the gas and the diameter of the small hole B.

The waveform shape is also determined by the speed at which each small hole is opened and closed. Then, the cycle S, that is, the frequency of these waveforms increases, and when this frequency reaches about 20 KH2, an ultrasonic wave is generated. Figure 4 is an explanatory diagram when generating ultrasonic waves,
When the unique resonance frequency of the particles ejected from each small hole is met, these particles are crushed and further miniaturized. Since these actions are performed through a large number of small holes, a large amount of fine particles are sprayed. The fine particles ejected in this way remain suspended stably for a certain period of time in the ultrasonic range. Then, depending on the frequency adjustment, fine particles that are in contact with each other cause aggregation. Furthermore, the size of the particles is determined by the shielding speed, ie the frequency.

(Example) Examples of the method and apparatus of the present invention will be described below with reference to the drawings.

FIGS. 5 and 6 show a first embodiment of the apparatus of the present invention. Reference numeral 1 denotes a substantially box-shaped apparatus body, in which a sealed chamber 2 is formed. Reference numeral 3 designates a large number of penetrating small holes 3 formed in the fixed side wall 1a on one side of the device main body 1, and the large number of small holes 3 are arranged in a circle. 4 is a drive shaft inserted into this sealed chamber 2 on one side and the other side protrudes outside the device body 1; 5 is a motor connected to the drive shaft 4 outside the device body 1; and 6 is a drive shaft inside the device body 1. It is a rotary plate whose central part is fixed to the end of the drive shaft 4 inserted into the sealed chamber 2, and this rotary plate 6 is opposed to the above-mentioned fixed wall 1a. A large number of small holes in the mold, each of these small holes 7 facing each small hole 3 of the fixed side wall 1a.8 is this rotating plate 6
A circular groove-shaped pump chamber is bored in the center of the surface facing the fixed side wall 1a, 9 is a thin groove extending from this pump chamber 8 to each of the small holes 7, and 10 is a suction pump provided in this pump chamber 8. The blade 11 is a storage tank for the material to be treated, which is provided outside the main body 1 of the apparatus.
12 has one end inserted into this storage tank 11 and the other end inserted into the fixed side wall 1
A pipe 1 that passes through a and faces the pump chamber 8;
3 is a pressure air pipe 1 whose one end is connected to the inside of the sealed chamber 2 of the main body 1 of the apparatus.

Next, the present invention will be described in detail using the apparatus of this embodiment. A liquid to be treated, which is a liquid to be treated, is put into the storage tank 11 and is sucked up through the pipe 12 to the end of the pipe 12. On the other hand, the motor 5 is driven to rotate the rotating plate 6.

In the pump chamber 8, the target material 14 at the end of the pipe 12 is sucked into the pump chamber 8 by the rotation of the suction bong 1 and the blades 10. The liquid 14 to be treated that has entered the pump chamber 8 passes through each narrow groove 9 and reaches each small hole 7 due to centrifugal force, and is deposited as a thin film. The sealed chamber 2 is then filled with compressed air through the compressed air pipe 13. However, if the positions of the small holes 3 in the fixed side wall 1a and the small holes 7 in the rotary plate 6 do not match, the compressed air will not be blown out of the main body 1 of the apparatus. The rotating plate 6 rotates to open these small holes 7.
When and 3 match, compressed air will blow out through them,
The thin film covering the small holes 7 passes through the small holes 3 and flies to the outside of the device main body 1, becoming particles. In this manner, the rotation of the rotary plate 6 intermittently blocks the small holes 3, and air and particles are intermittently ejected from the small holes 3. Since this is performed for each of the many small holes 3, the liquid to be treated 14 is sprayed in the form of a large amount of particles. As the rotational speed of the rotating plate 6 increases, the air and particle ejection frequency increases as described above.
The outside of the small hole 3 becomes an ultrasonic region, and the particles ejected from the small hole 3 are further crushed here to become a large number of fine particles.

FIG. 7 shows a second embodiment of the device of the present invention, in which a liquid feed pipe 15 is provided in the drive shaft 4 in place of the pipe 12, and a rotary joint 16 is connected to one end of the liquid feed pipe 15. A fixed pipe 17 is connected to the fixed pipe 17, and the other end of a pipe 12, one end of which is inserted into a storage tank 11 containing a liquid to be treated 14, is connected to the fixed pipe 17. The drive shaft 4 rotates by transmitting the rotation of the motor 5 through gears 18 and 19.

This second embodiment also operates in substantially the same manner as the first embodiment.

FIG. In this case, there is no need to provide a separate drive source.

9 and 10 show a φth embodiment of the device of the present invention, in which a large number of rods 21 are installed in the pump chamber 8 in place of the suction pump vanes 10 in the pump chamber 8 in the first embodiment. The rod rod 2 is installed vertically, and the rod rod 2
1, a large number of similar rods n are erected between them to form a crushing device.

This embodiment is suitable when the material to be processed is granular, and the material to be processed 14 is guided from the storage tank 11 to a crusher by a pump, and the material to be processed 14 is transported between the rods 21 and η of this crushing equipment. It is crushed into fine particles or powder and reaches the small holes 7 of the rotary plate 6, and as in the above example, it becomes further fine powder from each small hole and is ejected outward from the main body l of the device. It is something.

In each of the above embodiments, a large number of small holes 3 are bored in the rotary plate 6, but if a blade-shaped shield is used instead, the small holes 3 in the fixed side wall 1a can be made intermittently as in each of the above embodiments. It can be shielded.

Figures 1 to 13 show a j-th embodiment of the device of the present invention, in which numeral 31 denotes a cylindrical device main body, and 31 a cylindrical inner cylinder rotatably provided in the device main body I. , 32 is a drive shaft of this inner cylinder 31. This drive shaft 32 has a pipe shape, and compressed air is injected into the inner cylinder 31 through a conduit inside this drive shaft 32. A is a fixed pipe connected to one end of this drive shaft 32 via a rotating joint 35, A is a pulley fixed to the outer periphery of the drive shaft 32, 37 is a pulley fixed to the drive shaft of the motor blade, and 39 is the rear of these pulleys. 3
The V-belt passed between 7 and 40.41 is the device body (
) and the inner cylinder 31 at corresponding positions, 42 is a storage tank for the processed material provided below the main body 1, and 43 is one end inserted into the storage tank 42. , a pipe whose other end reaches the inner circumferential surface of the blade of the apparatus main body, and 44 a pump that sucks the object to be processed from the storage tank 42 to the inner circumferential surface of the apparatus main body (material) through the pipe 43.

In the case of this embodiment, the object to be processed 45 is sucked up to the inner circumferential surface of the blade of the apparatus main body by the pump, and further passes through the gap 46 between the inner circumference of the blade of the apparatus main body and the outer circumference of the inner cylinder 31 into the small hole 40. and 4
It rises to one location and adheres to the small hole 41 as a thin film. When the small hole 41 of the inner cylinder 31 is in a position opposite to the small hole 40 of the blade of the main body of the device, the compressed air that has been filled in the inner cylinder 31 through a conduit in advance causes the processed material 45 to become particles. The liquid is ejected from the small hole to the outside of the device body. Since this is done for the large number of small holes 40 and 41 provided in the blade of the device body and the inner cylinder 31, the large number of small holes 40 and 41 are
A large amount of particles will be sprayed.

Then, as in the above embodiment, depending on the rotational speed of the cylinder 31 and the diameter of the small hole, ultrasonic waves are generated, and a large number of ejected particles are further crushed within this ultrasonic range to become fine particles and float for a certain period of time.

Fig. 11I and Fig. 1 show a sixth embodiment of the device of the present invention, in which the force is a hollow annular device main body, and the reference numeral 51 is an air blowing pipe provided integrally on the outer periphery of this device main body (material). , 5
2 is a rotary ring body rotatably provided within the main body of this device;
This rotating ring body 52 has its own rotating side wall 54 in contact with the inner circumferential surface 53 of the device main body (material), and furthermore, this rotating ring body 52
A large number of blades 55 protrude from appropriate locations on the outer periphery. These vanes 55 are hit by compressed air that has entered the equipment from the air blowing pipe 51, and as a result, the rotating ring body 52
rotates. 56 and 57 are inner peripheral surfaces 53 made of the device main body, respectively.
and a large number of small holes bored at positions facing the rotating side wall 54 of the rotating ring body 52, which are in contact with the rotating side wall 52, and 58 is a workpiece whose one end is opened in the gap 59 between the blade of the device main body and the rotating ring body 52. This introduction pipe 58 is used to guide the material to be processed from a storage tank (not shown) into the gap 59 using a pump.

In this embodiment, the object to be processed is guided into the gap between the inner circumferential surface 53 of the blade of the main body of the apparatus and the rotating side wall 54 of the rotating ring 52, and adheres to the small hole 56 of the rotating side wall 54 as a thin film. On the other hand, the rotary ring body 52 is rotated by the compressed air that enters the apparatus main body from the air blowing pipe 51, and when the small holes 56 and 57 coincide, the material to be treated becomes particles together with the air, and the small hole 5
6 to the outside of the device main body 50.

This is a large number of small holes 56 drilled in the inner circumferential surface 53 of the blade of the main body of the device.
For example, in the inflation fusion method for plastic molding, this annular device body blade is installed around the outer periphery of the molten tube that comes out of the die, and the surface is uniformly modified around the outer periphery of the tube. This is useful when attaching fine particles made of solidifying agents or cooling water.

Furthermore, in each of the above embodiments, instead of pressurizing a gas such as air within the apparatus main body and ejecting the object to be treated as particles to the outside of the apparatus main body, a sealed chamber is provided outside the apparatus main body. It is also possible to reduce the pressure and eject the material to be treated as particles from the apparatus main body into the closed chamber. Further, in each of the above embodiments, a rotating plate, an inner cylinder, and a rotating ring are used as the shielding body, but the shielding body is not limited to these, and may have any shape as appropriate. Furthermore, although compressed air was used in each of the above embodiments, it is needless to say that any suitable gas other than air may be used.

(Effects of the Invention) The present invention has the above-mentioned configuration, and includes a process in which a material to be treated consisting of liquid, powder, granules, or a mixture thereof is made into a large amount of particles or fine particles and is intermittently sprayed through small holes. As a result, these fine particles are dispersed in the gas and suspended for a certain period of time. At this time, in this invention, the material to be treated and the gas sprayed from the small holes in the main body of the apparatus are intermittently cut off by the shield, so that the ejected particles have a constant particle size. Further, by providing a large number of small holes in the fixed side wall of the main body of the device and drilling the small holes at corresponding positions in the shielding body, a large amount of fine particles can be sprayed at one time. Furthermore, it is extremely easy to increase the shielding speed of the above-mentioned shielding body for the small hole, and when this speed is increased, ultrasonic waves are generated outside the small hole, which makes it possible to further miniaturize particles, etc., and stabilize them for a certain period of time. particles can be dispersed and suspended. Moreover, the particle size of these particles can be arbitrarily adjusted by changing the shielding speed. Furthermore, since the ejected particles coagulate with each other after a certain period of time, this can also be utilized.

As described above, according to the present invention, ultrasonic waves can be generated extremely easily, particles can be made extremely small, and a large amount of particles can be sprayed at one time.

[Brief explanation of drawings]

1 and 1 are explanatory diagrams of the principle of this invention, and the first
The figure is an explanatory cross-sectional view of the apparatus used in the method of this invention.
Figures (a), (cy), and (c) are explanatory cross-sectional views showing the spraying process in the method of the present invention, respectively, and Figure 3 shows the output state in which air and the object to be treated are sprayed from the small holes in the present invention. The graph diagram shown in FIG. FIG. 5 is a sectional view of the first embodiment of the device of the present invention, FIG. 6 is a front view of the rotating disk of the same embodiment, and FIG. 7 is a sectional view of the second embodiment of the device of the present invention. , Figure 3 shows the third part of the apparatus of this invention.
FIG. 9 is a sectional view of the tth embodiment of the apparatus of the present invention, FIG. io is an enlarged sectional view of the main part of the same embodiment,
Fig. ii is a sectional plan view of a fifth embodiment of the device of the present invention, Fig. 12 is a sectional side view of the same embodiment, Fig. 73 is a perspective view of the same embodiment, and Fig. 14' is a sectional view of the fifth embodiment of the device of the present invention. FIG. 15 is a cross-sectional plan view of the sixth embodiment of the device, and FIG. 15 is an enlarged sectional view of the main part of the sixth embodiment. In the figure, 1 is the device body, 2 is the sealed chamber, 3 is the small hole, 4 is the drive shaft, 5 is the motor, 6 is the rotary plate, 7 is the small hole, 8 is the pump chamber, 9 is the narrow groove, and 10 is the suction 11 is a storage tank, 12 is a nozzle tube, 13 is a pressurized air 7 (chair, 14 is a liquid to be treated, 3 is a main body of the apparatus, 31 is an inner cylinder, 32G is a drive shaft, 0 is a conduit, 40. 41 is a small hole, 42G is a storage tank, 43 is a by 7゛, 44 is a pump, 45 is a material to be treated, 4
6 is the gap, Seki is the device body, 51 is the air blowing pipe, 52G
53 is a rotating ring body, 53 is an inner peripheral surface, 54 is a rotating side wall, 55.5
6.4'i small hole, 58 is introduction) (Eve. Figure 2 (a) (b)
(7%) 3rd
Fig. 5s-1 Fig. 10 Fig. 6 Fig. 7 Fig. 12 Fig. 14-d Fig. 1S

Claims (12)

[Claims] (1) When the material to be treated is ejected along with gas to the outside of the fixed side wall from the large number of small holes drilled in the fixed side wall due to the pressure difference between the inside and outside of the fixed side wall, each of the small holes is intermittent with an appropriate shield. 1. A spraying method characterized by intermittently spouting a treated material and gas while shielding the target material. (2) The spraying method according to claim (1), wherein the object to be treated is a liquid, a powder, a granule, or a mixture thereof. (3) A spraying method characterized in that the pressure difference between the inside and outside of the fixed side wall is created by pressurizing the inside of the fixed side wall or reducing the pressure on the outside. (4) The spraying method according to claim (1), wherein the object to be treated is mixed with a gas in advance. (5) The spraying method according to claim (1), characterized in that the object to be treated is constantly supplied between the fixed side wall and the shield. (6) The spraying method according to claim (1), wherein the shielding body is a rotating disk with a large number of small holes. (7) The spraying method according to claim (1), wherein the shielding body is made of a large number of blades. (8) A rotating side plate that is rotated by an appropriate rotation drive source is provided in the sealed chamber in contact with the fixed side wall on one side of the sealed chamber, and a large number of small through holes are formed in each of the rotating side plate and the fixed side wall at positions facing each other. A pump device is provided to guide the material to be processed from a storage tank for the material to be processed between the fixed side wall having small holes and the rotating side plate, and a means for inserting gas into the sealed chamber to pressurize the sealed chamber is provided. A spray device characterized by: (9) The spray device according to claim (8), wherein the fixed side wall of the sealed chamber is plate-shaped, and the rotating side plate is a rotating disk. (10) The spraying device according to claim (9), characterized in that the pump device includes a device for pulverizing the material to be treated that is introduced between the stationary side wall and the rotating side plate. (11) A patent claim characterized in that the sealed chamber forms a cylinder, the fixed side wall is formed on the circumferential wall of the cylinder, and the rotating side plate is formed on the circumferential wall of the cylindrical inner cylinder provided in the sealed chamber. The spray device according to scope (8). (12) A patent claim characterized in that the sealed chamber forms a hollow annular body, the fixed side wall is formed on the inner peripheral wall, and the rotating side plate is formed on the rotating side wall of the rotating ring provided in the sealed chamber. The spray device according to scope (8).