JPH0587455A - Dry treatment device - Google Patents

Abstract

PURPOSE:To provide a drying treatment device which raises the condensation performance for the steam generated from an object to be dried, promote, at the same time, uniform drying, and realize clean and hygienic treatment by microwave drying system. CONSTITUTION:A storage section 2 for objects to be dried is provided in the condensation section 3, and in the lower section of the storage section 2 the rotating shaft 23 of a motor 25 and a connecting section 24 that is freely detachable are provided. A microwave introduction section 11 that introduces microwaves from a microwave oscillator 9, air flow-in section 14 that lets the air 13 from a blower 12 flow in, air flow-out section 15 that lets the air 13 flow-out, and treatment chamber door 16 are provided and a condensation water flow-out section 19 is provided in the lower section of the condensation section 3 to constitute a treatment chamber 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drying treatment device for treating dried materials such as foods, industrial materials, garbage and industrial wastes.

[0002]

2. Description of the Related Art Drying apparatuses include a method using an electric heater depending on a heating source, a method using combustion heat, a method using microwaves, and the like. Although a drying apparatus using an electric heater is excellent in safety and controllability, it causes a large heat radiation loss, which makes it difficult to improve the drying efficiency. Since the drying treatment device using combustion heat uses gas fuel, liquid fuel, etc.,
The entire device is complicated and large, and there is a problem in safety.
On the other hand, since the microwave is selectively absorbed by the moisture in the material to be dried in the drying processing apparatus using microwaves,
It has a high drying efficiency, is excellent in safety, does not make the entire apparatus complicated and becomes large, and is suitable for the drying treatment of the material to be dried having a high water content.

[0003]

However, such a conventional drying apparatus using microwaves also has the following problems. Since the microwave intensity distribution is likely to be non-uniform, it is difficult to uniformly dry the material to be dried.
The water vapor evaporated from the material to be dried forms dew condensation after being discharged, and pollutes indoors and outdoors. Further, if the material to be dried is continuously irradiated with the microwave even after drying, there is a risk that the material to be dried may ignite. The present invention focuses on a microwave drying method, enhances the condensation performance of water vapor generated from an object to be dried, reduces odor during drying, and can perform a clean and hygienic uniform drying process. Is provided.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention includes an article to be dried storage section for storing articles to be dried, and a condensing section located outside the article storage section to be dried inside a processing chamber. A microwave introduction part for introducing microwaves from a microwave oscillator, an air inflow part for inflowing air from a blower fan, and an air outflow part for outflowing air are provided in the processing chamber to store the dried object. A ventilation section is provided between the condensation section and the condensation section to allow water vapor generated from the material to be dried to flow out, a condensed water outflow section is provided below the condensation section, and means for rotating the material to be dried storage section is provided. It constitutes a processing device.

[0005]

With the above structure, when the object to be dried housing in the condenser is irradiated with microwaves, the object to be dried starts to be heated, and the microwaves are selectively absorbed with respect to moisture in the object to be dried. The water vapor is generated to dry the material to be dried, and the air is cooled on the outer surface of the condensing part, and then flows out from the air outflow part to the outside of the processing chamber. By air-cooling the outer surface of the condensing part, most of the water vapor generated from the material to be dried is condensed on the inner surface of the condensing part to form condensed water, and discharged from the condensed water outflow part to the outside of the condensing part.
Furthermore, by rotating the drying target storage part with the operation of the blower fan, the drying target is uniformly dried by the microwave, and heat transfer is promoted to enhance the condensation performance of water vapor generated from the drying target. There is. Further, since the condensing section and the article to be dried storage section can be taken out from the processing chamber, even if dirt is attached, they can be easily washed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete description will be given below with reference to the drawings.

(First Embodiment) FIG. 1 is a sectional view showing a first embodiment of the present invention. In FIG. 1, an article-to-be-stored 2 for accommodating an article to be dried 1 is located inside a condenser 3, and a condenser 4 is provided with an article-to-be-opened lid 4. The material to-be-dried inlet lid 4 is configured to also serve as the condensation portion 3 and the material to be dried storage portion 2, but it does not need to be separated as a lid, and can also be used as a part of the condensation portion 3 and the material to be dried storage portion 2. good. A ventilation part 6 for letting out water vapor 5 generated from the material to be dried 1 is provided between the material to be dried storage part 2 and the condensing part 3. The condensing part 3 is formed of a microwave reflecting material, and the dried material inlet port lid 4 is formed of a microwave transmitting material having excellent heat resistance. Although the condensing unit 3 is installed in the processing chamber 7 during the drying process, the condensing unit 3 can be taken out of the processing chamber 7. Further, the condenser 3 is positioned with respect to the processing chamber 7 by a rail 8 attached to the lower portion of the processing chamber 7. In the processing chamber 7, a microwave oscillator 9, a microwave introduction part 11 for introducing the microwaves from the waveguide 10, an air inflow part 14 for inflowing the air 13 from the blower fan 12, and an air for outflowing the air 13. Outflow section 15 and processing chamber door 16
And a temperature detector 17 are provided. Microwave introduction part 1
1 is installed above the processing chamber 7.

Since the inside of the processing chamber 7 is a microwave space,
The air inflow part 14 and the air outflow part 15 are a plurality of small holes that prevent microwaves from leaking outside the processing chamber 7. The processing chamber door 16 is also enhanced in hermeticity so that microwaves do not leak, and a door open / close detector 18 is installed so that the microwave oscillator 9 does not operate unless the processing chamber door 16 is completely closed. ing. Temperature detector 1 installed in processing chamber 7
In order to detect the temperature of the water vapor 5 generated from the material to be dried 1 during processing, the tip 7 is located near the ventilation part 6 through the condensing part 3. A condensed water outflow portion 19 is provided below the condensing portion 3, and a condensed water container 20, a condensed water trap 21, and a condensed water discharge passage 22 are provided below the condensed water outflow portion 19. A connection portion 24 that is attachable to and detachable from the rotary shaft 23 is provided in the lower portion of the dried object storage unit 2, and a motor 25 that rotates the rotary shaft 23 is provided. An O-ring 27 is provided inside the rotating shaft 23 so that the condensed water 26 does not leak to the motor 25 side.

A gas suction pipe 28 for sucking gas (including odor) generated from the material to be dried 1 is connected to the condensed water trap 21, and a moisture collector 29 is provided on the upstream side of the gas suction pipe 28. A deodorizing device 30 and an intake fan 31 are provided on the downstream side of the gas suction pipe 28. In this embodiment, the deodorizing device 30
However, a catalyst device may be provided. A drain trap 33 and a drain passage 34 are provided below the sink 32, and the condensed water discharge passage 22 communicates with the drain passage 34. The device is partitioned by an outer wall 35, and the outer wall 35 has an air hole 36.
Is provided.

Next, the operation will be described. In FIG. 1, after the material to be dried 1 is put into the material to be dried storage section 2 in the condensing section 3, the material to be dried input lid 4 is closed and the condensing section 2
Is stored in the processing chamber 7. After confirming that the processing chamber door 16 is closed, when the microwave oscillator 9 is operated,
The microwave passes through the waveguide 10 and the microwave introduction unit 11
Is irradiated into the processing chamber 7. When the processing chamber door 16 is not completely closed, the door open / close detector 18 prevents the microwave oscillator 9 from operating. Processing room 7
The microwave radiated inside penetrates the drying object inlet lid 4 formed of the microwave transmitting material, and starts heating the drying object 1 in the drying object storage unit 2. In particular, the microwave is selectively absorbed with respect to the water content in the material to be dried 1, water vapor 5 is generated, and the material to be dried 1 is dried. Further, the blower fan 12 is operated together with the microwave oscillator 9 to send the air 13 into the processing chamber 7 from the air inlet 14. The air 13 cools the outer surface of the condenser 3 and then flows out of the processing chamber 7 from the air outlet 15. By air-cooling the outer surface of the condensing part 3, most of the steam 5 generated from the material to be dried 1 is condensed on the inner surface of the condensing container 3 to form condensed water 26, and the condensed water outflow part 19
Is discharged to the lower side of the condenser section 3. The condensed water outflow portion 19 does not discharge the solid content that may cause clogging of the sewer passage, so unlike the conventional mechanical processing apparatus, it does not adversely affect the environment. Further, the motor 25 is operated together with the microwave oscillator 9 and the blower fan 12,
The dried object storage unit 2 is rotated. By rotating the to-be-dried material storage portion 2, even if the to-be-dried material 1 having a non-uniform water content is mixed in the to-be-dried material storage portion 2, uniform drying by microwaves can be performed and heat transfer can be promoted. It is also possible to improve the condensation performance of the steam 5 generated from the dried material 1. The rotary shaft 23 is separated by the connecting portion 24 except when the drying process is performed, so that the article storage part 2 can be taken out from the processing chamber 7. Since the condenser 3 and the article-to-be-dried storage 2 can be taken out of the processing chamber 7, it is possible to easily clean even if dirt is attached, and it is possible to make the apparatus as a whole compact.

Further, by detecting the temperature of the water vapor 5 generated from the material to be dried 1 during processing by the temperature detector 17,
Although the microwave drying process can be terminated without igniting the material to be dried 1, the temperature detection can be performed by rotating only the material housing portion 2 to be dried while the condenser 3 is fixed as in the present embodiment. It is possible to make the tip of the vessel 17 penetrate the condensing part 3 and be positioned in the vicinity of the ventilation part 6 where the temperature change of the water vapor 5 is remarkable.

Further, by forming the upper part of the condensing part 3 with a microwave transmitting material and installing the microwave introducing part 11 on the upper side of the processing chamber 7, it is possible to efficiently absorb the microwave into the article to be dried 1. it can. By forming the portion other than the upper portion of the condenser 3 with the microwave reflecting material (metal), the intensity distribution of the microwave in the central portion of the processing chamber 7 can be made dense.

A condensed water trap 21 is provided below the condensed water outflow portion 19, a gas generated from the material to be dried 1 is sucked by a suction fan 31 from a part of the condensed water trap 21, and a downstream side of the gas suction pipe 28. By providing the deodorizing device 30 in the above, the odor of the gas generated from the material to be dried 1 can be removed by the deodorizing device 30 and then discharged to the downstream side of the intake fan 31. The deodorizing device 30 may not be necessary because the system to dry the material to be dried 1 may be used, but if the odor is strong, a catalyst device may be provided. By making the pressure inside the condenser 3 negative, it is possible to prevent gas (including odor) from leaking from the condenser 3 into the processing chamber 7. The configuration in which the pressure inside the condenser 3 is negative is effective for suppressing the leakage of odor even during the drying process.

(Embodiment 2) Next, a sectional view of Embodiment 2 is shown in FIG. In FIG. 1, the condensing unit 3 has a container shape and can be taken out of the processing chamber 7 with the object to be dried storage unit 2 housed therein, but in FIG.
The processing chamber door 16 is fixed to the inside of the condenser 3
As part of. The upper part of the condensing part 3 is formed of a microwave transmitting material, and also serves as the structure of the material inlet port cover 4. The rail 8 for positioning the condenser 3 with respect to the processing chamber 7 is unnecessary. The inner surface of the condenser 3 is coated with fluorine so as to prevent dirt from adhering to the inner surface.

The operation after the microwave irradiation is the same as that of the first embodiment, but after the material to be dried 1 is stored in the material to be dried storage portion 2 before the microwave irradiation, unlike the first embodiment, in the second embodiment. It suffices to install only the object storage part 2 to be dried in the condensing part 3. It is not necessary to open and close the dried material inlet port lid 4 as in the first embodiment.

[0016]

As described above, according to the drying apparatus of the present invention, the following effects can be obtained. Most of the water vapor generated from the material to be dried is condensed on the inner surface of the condensing part to form condensed water, which is discharged from the condensed water outflow part to the outside of the condensing part, thereby reducing odor during drying. In addition, the microwave can uniformly dry the material to be dried, promote heat transfer, and enhance the condensation performance of water vapor generated from the material to be dried. Further, since the condensing unit and the dried object storage unit can be taken out from the processing chamber, it is possible to easily clean even if dirt is attached, and it is possible to make the entire apparatus compact. Further, since the solid content that causes clogging of the sewer passage is not discharged from the condensed water outflow portion, clean and hygienic treatment can be performed without adversely affecting the environment.

[Brief description of drawings]

FIG. 1 is a sectional view of a drying processing apparatus according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a drying processing apparatus according to another embodiment of the present invention.

[Explanation of symbols]

 2 Drying Material Storage Section 3 Condensing Section 7 Processing Room 9 Microwave Oscillator 12 Blower Fan 17 Temperature Detector 21 Condensed Water Trap 23 Rotating Shaft 25 Motor 31 Intake Fan

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kunihiro Ukai 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (5)

[Claims] 1. An article to be dried containing an article to be dried and a condenser located outside the article to be dried are provided inside a processing chamber, and a microwave from a microwave oscillator is provided in the processing chamber. A microwave introduction unit for introducing waves, an air inflow unit for inflowing air from a blower fan, and an air outflow unit for outflowing the air are provided, and the space is provided between the dried object storage unit and the condensing unit. A drying treatment apparatus comprising: an aeration part for letting out water vapor generated from an object to be dried, a condensed water outflow part provided under the condensing part, and means for rotating the object to be dried storage part. 2. A temperature detector for detecting the temperature of water vapor generated from a material to be dried is installed in a processing chamber, and a tip of the temperature detector is located near the ventilation part by penetrating the condensing part. The dry processing apparatus according to claim 1. 3. An apparatus for storing an article to be dried for storing an article to be dried, a condenser section located outside the article accommodation section to be dried, and a processing chamber located outside the condensation section. A microwave introduction part for introducing a microwave from a microwave oscillator, an air inflow part for inflowing air from a blower fan, and an air outflow part for outflowing the air are provided, and the processing chamber door is provided with the condensing part. A part of the aeration part for letting out water vapor generated from the material to be dried between the to-be-dried material storage part and the condensing part, and providing a condensed water outflow part under the condensing part, A dry processing apparatus comprising means for rotating a dried product storage section. 4. The drying processing apparatus according to claim 1, wherein the upper part of the condensing part is formed of a microwave transmitting material, and the microwave introducing part is installed above the processing chamber. 5. A deodorizing device is provided on the lower side of the condensed water outflow portion, and a deodorizing device is provided in a path for sucking gas generated from the material to be dried by an intake fan from a part of the condensed water trap and sucking the gas. Or a catalyst device is provided, The drying treatment device according to claim 1 or 4.