JPH1062065A - Apparatus and method for drying object to be dried - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dry water sticking to or contained in a matter to be dried in a very short without using a heat source by repeating pressurization by spraying compressed air to the matter to be dried through an air blowing means and the pressure reduction of air near the matter to be dried by an evacuating means for evacuating the air. SOLUTION: An electron gun 7 as a matter to be dried is inserted into a basket 6, a handle 19 is rotated to lower a ball screw 16 and the basket 6 is put in the water 5 of a water tank part 2 to clean the electron gun 7. When the basket 6 is raised and passed through a drying part 3 after cleaning the gun, compressed air is blown from nozzles 8L and 8R through a pipeline 24. Since the electron gun 7 in the basket 6 rotates, pressurizing force from the nozzles 8L and 8R are alternately applied to respective parts for a short time. Since air is always evacuated by a fan 11, pressure is reduced and the reduced pressure operates in the drying part 3, the pressurization and pressure reduction are repeated in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for drying a material to be dried which can rapidly dry the material to be dried containing water at room temperature and a method for drying the same.

[0002]

2. Description of the Related Art Conventionally, the most common drying method for drying a washed electron gun or the like is to blow hot air heated to about 80 ° C. through a hot air dryer or the like to perform drying. Since it takes 1 to 2 hours, a method of mixing hot air into high-pressure air to dry the object to be dried has been proposed.

[0003] As another drying apparatus or drying method, a method of blowing high-pressure air to a body to be dried containing moisture to blow off the moisture contained or deposited on the body to be dried is widely used. .

[0004]

SUMMARY OF THE INVENTION In the above-described conventional apparatus and method for drying an object to be dried or a method for drying the same, a drying apparatus becomes extremely large in the apparatus or method for mixing hot air into high-pressure air for drying. The size of the drying device is not only 2m width x 2m depth x 2m height or more, but also requires a high pressure generator and a hot air generator to heat small electric parts such as electron guns. There was a problem that it would be extremely uneconomical to do so.

Further, in a drying method in which high-pressure air is used to blow off water adhering to the object to be dried, for example, even if the electron gun is washed with water and high-pressure air is blown to blow off the water, the electron gun adheres to the electron gun. 100 to 200mg of residual water
There is a problem that it takes a long time to obtain a completely dry state.

Further, in the case of an electrode of an electron gun, which is formed in a pipe shape and has a very short interval between the electrodes and is held by beaten glass, high-pressure air or hot air is mixed into the high-pressure air. There was a problem that air had to be blown into the pipe and between the electrodes.

SUMMARY OF THE INVENTION The present invention aims to provide an apparatus for drying a dried object and a method for drying the same, which have solved the above-mentioned problems. A drying device and a drying method capable of drying water without using a heat source are provided.

[0008]

As shown in FIG. 1, an apparatus for drying a body to be dried according to the present invention comprises air blowing means 8L and 8R for blowing compressed air to a body to be dried 7; Exhaust means 11 for exhausting air in the vicinity of the arrangement of the drying body 7, pressurization by blowing compressed air to the body 7 to be dried by air blowing means 8L and 8R, and drying by exhaust means 11 for exhausting air. It is provided with pressurizing and depressurizing switching means 16, 18, and 19 for repeating the depressurization of the air near the body 7 in a short time.

According to the method for drying an object to be dried according to the present invention, drying can be performed in a very short time without using a heat source with extremely compact equipment, which greatly contributes to energy saving.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the apparatus for drying a material to be dried and the method for drying the same according to the present invention will be described below in detail with reference to FIGS.

FIG. 1 is a side sectional view of a main part of the drying apparatus of the present invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is an overall external view. In the example, the object to be dried 7 is C
A drying apparatus and a drying method for drying the electron gun sealed in the neck of the RT after cleaning will be described.

The electron gun as the object 7 to be dried in the present embodiment has a sub-assembled CRT neck in which an accelerating, controlling, and focusing electrode composed of, for example, a cathode, first to fifth electrodes, and the like are fixed with beading glass. It may be a sub-assembled electron gun before it is sealed in each other, or individual first to fifth electrodes.

The object 7 to be dried such as an electron gun or an electrode is cleaned and dried in a drying apparatus 1 as shown in FIG.

FIG. 3 shows an external view of the drying apparatus of the present embodiment as a whole. The lower end of a substantially rectangular parallelepiped casing 21 is formed as a water tank section 2 and is filled with washing water 5 and the lower end is formed. Has a drain valve 12 attached. The drying unit 3 is formed on the upper side of the water tank unit 2, and the spraying units 8 </ b> L and 8 </ b> R and the exhaust unit 11 constituting the drying device of the present embodiment are arranged in the drying unit 3.

A through hole 14 is formed in the center of the upper lid 15 of the drying unit 3 made of a transparent vinyl chloride resin or the like.
On the upper side of the drying unit 3 is provided a charging / discharging unit 4 for charging / discharging the object 7 to be dried such as an electron gun or an electrode.

The loading / unloading section 4 has an L-shaped pedestal 17 mounted on the back side of a casing 21, a bearing 18 fixed at a position intersecting the center axis of the through hole 14 formed in the upper lid 15, and a ball screw 16 mounted on the bearing 21. Screw it to 18. Ball screw 16
At the upper end, a handle 19 is fixed by welding or the like, and at the lower end, as shown in FIG. 1, a hanger 22 for attaching a basket 6 formed of a wire mesh or the like into which an object 7 to be dried such as an electron gun or an electrode can be inserted. Fixed.

As shown in FIGS. 1 and 2, the drying section 3 comprises a first partition plate 9 formed of a bunching metal having an opening ratio of 50 to 60% and formed in an octagonal shape when viewed substantially from a plane.
3 and fix it with bolts. A hole 14 having the same diameter as the hole 14 formed in the upper cover 15 is formed in the center of the bottom plate 23 so that the bucket 6 can be taken in and out.

Further, four second partition plates 10 composed of flat plates
Is fixed to the upper lid 15, and as shown in FIGS.
Holes 35 formed in three side walls of the casing 21 of FIG.
The outside air that has entered the drying unit 3 through the fan 1 as shown in FIG.
1, the first and second partition plates 9 and 10 control the flow of air so that uniform depressurization in the drying section 3 and exhaustion of saturated moisture are performed smoothly.

Nozzles 8L and 8R are mounted on the left and right sides of the first partition plate 9 so as to face each other. The number of nozzles can be increased as appropriate. Nozzle 2L
, And 2R are supplied with compressed air 13 via a pipe 24. The switching valve 20 for turning on and off the compressed air is attached to the back side of the casing 21.

Further, a fan 11 as an exhaust means is attached to the back side of the casing 21 so as to exhaust the air in the drying section 2.

The operation of the above configuration will be described. First, as shown by a virtual line in FIG. 1, an electron gun 7 as a body to be dried is inserted into a basket 6 which is lifted into a loading / unloading section 4.

Next, when the handle 19 is rotated clockwise, the ball screw 16 descends while rotating, and the basket 6 passes through the drying section 3 and enters the water 5 in the water tank section 2 while rotating. Is washed.

When the handle 19 is rotated counterclockwise after washing, the ball screw 16 rises while rotating counterclockwise. Therefore, the electron gun 7 in the basket 6 also passes through the drying unit 3 while rotating. During this passage, the switching valve 13 is turned on.
The compressed air 13 is blown from the nozzles 8L and 8R through the pipe 24.

In this case, since the electron gun 7 in the basket 6 is rotating, the pressing force from the nozzles 8L and 8R is alternately applied to each part for a short time. Further, in the drying unit 3, since the air is constantly exhausted by the fan 11 to reduce the pressure and the depressurizing force acts, the pressurizing and depressurizing switching means for repeating the pressurizing and depressurizing for a short time is configured.

As described above, since a short-time pressing force and a depressurizing force are alternately applied to each part of the electron gun, it is possible to dry it to 1 mmg or less in about 16 seconds with 1 g of water adhering at the time of cleaning the electron gun. Although it is possible, a conventional hot-air drying apparatus at about 80 ° C. can dry in an extremely short time as compared with a conventional apparatus requiring about 1 to 2 hours to achieve the same drying state.

Although each electrode of the electron gun 7 has a cylindrical shape in many cases, even if hot air or the like is not directly blown into the cylinder as in the related art, if only the pressure difference is applied, moisture adhering to the cylinder is reduced. It becomes possible to dry sufficiently.

Furthermore, even the surface of the object to be dried 7 having irregularities can be dried in a short time for the same reason as described above.

The electron gun 7 dried in the drying section 3 as described above
Is moved up to the loading / unloading section 4, taken out of the bucket 6, and moved to the next step.

In the drying apparatus 1 as described above, the casing 21
The size can be made as very small as 20cm width x 20cm depth x 40cm height, and it uses compressed air or low pressure blow air without using hot air etc. And greatly contribute to energy saving as well as downsizing of equipment.

Next, another embodiment of the drying apparatus 1 of the present invention will be described with reference to FIG. In FIG. 4, for example, an electric component of the object to be dried 7 is placed on a belt conveyor 25, the water 5 is sprayed by a shower 26 to perform cleaning, and then put into the casing 21 of the drying device 1 through an entrance 27 of the drying device 1. A motor 28 is fixed to the ceiling of the casing 21 of the drying device, and a U-shaped hanger 29 is rotatably fitted to the motor shaft. Nozzles 8L and 8R are attached. Dry air is supplied to the nozzles 8L and 8R via a pipe or the like,
The interior of the casing is constantly exhausted by a fan 11 mounted on the ceiling.

The casing 21 of the drying apparatus 1 having the above configuration
Nozzles 8L and 8 that rotate together with a hanger 29 by a motor 28 are provided on the surface of the electric component 7A that has entered through the doorway.
Dry air from R is alternately blown to apply a pressing force and a depressurizing force in a short time, so that the electric components discharged from the entrance 27 are completely dried.

FIGS. 5 and 6 show still another drying apparatus according to the present invention. FIG. 5 is a schematic side sectional view showing a case where the present invention is applied to a tableware drying apparatus. Tableware and the like are placed as the object 7 to be dried. The upper lid 15 is rotatable with respect to the casing 21 at a hinge 30 portion. An exhaust fan 11 is attached to the back surface of the casing 21, and nozzles 8 </ b> L and 8 </ b> R are fixed at appropriate positions inside the casing 21 through a pipe 24.

A switching valve 13 is mounted near the air intake of the pipe, and the switching valve 13 is controlled “on” and “off” by a control circuit 32. The "on" and "off" cycles are selected to be short, and compressed air 13 or low-pressure blow air is intermittently blown from the nozzles 8L and 8R to the tableware 7 to obtain intermittent pressing force and decompression force. Allow to dry.

The drying device 1 shown in FIG.
Is a closed type, an object 7 to be dried such as an electrode is inserted by opening the upper lid 15, a fan 11 as an exhaust means is attached, and intermittent compressed air or dry air is supplied from one nozzle 8. 13 is supplied through a solenoid valve 31. The solenoid valve is electrically turned on and off so that compressed air is ejected from the nozzle 8 at a predetermined intermittent cycle. In each of the above embodiments, an example using compressed air has been described, but low-pressure blow air or dry air may be used.

[0035]

According to the apparatus for drying the object to be dried and the method for drying the same according to the present invention, the apparatus as the drying apparatus can be made compact and the use of hot air does not require much energy, contributing greatly to energy saving. . Further, drying can be performed in a short time, and since no heat is applied to the object to be dried, no abnormality occurs in the object to be dried. Furthermore, since the device is simple, a device having a small number of parts and high durability can be obtained. Further, even a pipe-shaped material or a material having irregularities can be dried in a short time without quality change.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing one embodiment of a drying apparatus of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG. 1;

FIG. 3 is an external view of a drying device of the present invention.

FIG. 4 is another configuration diagram of the drying device of the present invention.

FIG. 5 is a configuration diagram of a tableware drying apparatus according to the present invention.

FIG. 6 is an external view of a closed type drying apparatus of the present invention.

[Explanation of symbols]

Reference Signs List 1 drying device, 2 water tank unit, 3 drying unit, 4 charging / discharging unit, 8L, 8R nozzle, 11 fan, 13 compressed air

Claims (6)

[Claims] 1. An air blowing means for blowing compressed air to a body to be dried, an exhausting means for exhausting air in the vicinity of the body to be dried, and a means for blowing compressed air to the body to be dried by the air blowing means. Pressurization, and an exhaust means for exhausting the air,
A drying device for drying the object to be dried, comprising a pressurizing and depressurizing switching means for repeating the depressurization of the air near the object to be dried in a short time. 2. The method according to claim 1, wherein the object to be dried is placed on a continuous conveying means capable of continuously moving, and the object to be dried is continuously dried by the drying device provided on the continuous conveying means. 2. The apparatus for drying an object to be dried according to claim 1, wherein: 3. The drying of the object to be dried according to claim 1, wherein the spraying means and the exhaust means are provided during the rotation and movement of the object to be dried to dry the object to be dried. apparatus. 4. The drying apparatus for drying an object to be dried according to claim 1, wherein said spraying means is rotated in said drying apparatus to pressurize said object to be dried. 5. The object to be dried according to claim 1, wherein the object to be dried is a cylindrical member such as an electron gun or a member having many irregularities on its surface. Body drying equipment. 6. A method for drying an object to be dried, characterized in that moisture adhering to the object to be dried is repeatedly pressurized and decompressed within a short time to promote evaporation and drying.