CN111141120A - Quantitative microwave hot air coupling drying oven - Google Patents
Quantitative microwave hot air coupling drying oven Download PDFInfo
- Publication number
- CN111141120A CN111141120A CN202010047980.6A CN202010047980A CN111141120A CN 111141120 A CN111141120 A CN 111141120A CN 202010047980 A CN202010047980 A CN 202010047980A CN 111141120 A CN111141120 A CN 111141120A
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- microwave
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- air
- door
- resonant cavity
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- 238000001035 drying Methods 0.000 title claims abstract description 27
- 230000008878 coupling Effects 0.000 title claims abstract description 19
- 238000010168 coupling process Methods 0.000 title claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 19
- 230000001629 suppression Effects 0.000 claims abstract description 41
- 238000005485 electric heating Methods 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000012780 transparent material Substances 0.000 claims description 6
- 230000002401 inhibitory effect Effects 0.000 claims description 5
- 230000000452 restraining effect Effects 0.000 claims description 5
- 230000005284 excitation Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/6414—Aspects relating to the door of the microwave heating apparatus
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a quantitative microwave hot air coupling drying oven which comprises a quantitative microwave resonant cavity (1), a 2450MHz non-contact microwave suppression door (2) arranged on the quantitative microwave resonant cavity (1), an air inlet (3) and an air outlet which are connected with the quantitative microwave resonant cavity (1), and a quantitative hot air and cold air switching device (4) connected with the air inlet (3). The drying device has reasonable structural design, stronger applicability for different products, no mutual interference among products to be dried and high yield; the air inlet mode can be automatically switched according to the process, the air quantity and the air pressure are controllable, and the air inlet is diversified; by adopting the non-contact microwave suppression door, the microwave leakage suppression effect is good, and the capability of suppressing microwave leakage can be greatly improved; the non-contact type furnace door has high automation degree; no part abrasion exists in the operation process of the furnace door; the service life is long.
Description
Technical Field
The invention relates to the technical field of microwave drying system equipment, in particular to a quantitative microwave hot air coupling drying box for drying honeycomb ceramics, various engineering membranes and porous biomass materials by microwave.
Background
The research of the conventional oven type microwave heating application in China starts from the beginning of the world, the 2450MHz microwave oven type heating application mainly only uses microwaves as an independent heat source, and a hot air and microwave coupling mode is not adopted to heat honeycomb ceramics, various engineering film drying products, porous biomass materials and other products at present, and a quantitative microwave hot air coupling drying box for performing branch heating on different products is not provided.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to overcome the defects of the prior art and provides a quantitative microwave hot air coupling drying box with a reasonable structural design. The microwave quantitative and hot air quantitative control system can perform quantitative microwave and quantitative hot air control on different products to be heated, can automatically switch air inlet speed and temperature compared with the traditional drying box, and has the advantages of high automation degree, diversified ventilation modes and wide application range.
The technical scheme is as follows: in order to achieve the above purpose, the invention adopts the technical scheme that:
a quantitative microwave hot air coupling drying oven comprises a quantitative microwave resonant cavity, a 2450MHz non-contact microwave suppression door arranged on the quantitative microwave resonant cavity, an air inlet and an air outlet connected with the quantitative microwave resonant cavity, and a quantitative hot air and cold air switching device connected with the air inlet;
the microwave frequency in the quantitative microwave resonant cavity is 2450MHz, a microwave excitation cavity is distributed at the top or the side surface of the quantitative microwave resonant cavity, and a high-molecular wave-transparent material clamp for clamping a product is arranged in the quantitative microwave resonant cavity;
the 2450MHz non-contact microwave suppression door comprises a suppression main door, a double-layer suppression sheet, a suppression hole plate, a polymer glass plate, a shielding sealing strip and a driving device;
the driving device is connected with the suppression main furnace door through a driving plate; the inner side of the main furnace door is provided with a groove, and the hole suppression plate is fixed in the groove surface on the inner side of the main furnace door through a hexagon socket head cap screw; the periphery of the hole inhibiting plate is connected with the main furnace door by adopting a shielding sealing strip, and the hole inhibiting plate is flush with the inner side surface of the main furnace door; the double-layer restraining sheets are fixed around the restraining hole plate through the hexagon socket head cap screws; the polymer glass plate is arranged on the outer side of the main furnace door through a furnace door outer covering plate;
the quantitative hot air and cold air switching device comprises an electric heating cavity, an electric heating pipe and a hot air pipeline which are arranged in the electric heating cavity, the hot air pipeline is connected with an electromagnetic valve, and the electromagnetic valve is connected with a cold air pipeline;
the air inlet is provided with a high-temperature on-off valve.
Preferably, in the above novel non-contact type suppression door structure of 2450MHz microwave equipment, the driving device is driven by the air cylinder, and the air quantity regulating valve is installed in the driving device to regulate the air quantity of the oven door, so that the suppression main oven door can move up and down.
Preferably, the novel non-contact type suppressing door structure of the 2450MHz microwave equipment is provided with a buffer and a limit switch in the process of suppressing the up-and-down movement of the main furnace door.
As a preferred scheme, the size and the hole interval of the novel non-contact type suppression door structure of the 2450MHz microwave equipment are both 3mm, and the holes are arranged in a staggered mode.
As a preferred scheme, the quantitative microwave hot air coupling drying box is characterized in that the high-molecular wave-transparent material clamp comprises a resonant cavity air inlet and a resonant cavity air outlet.
As a preferred scheme, the quantitative microwave hot air coupling drying box has the advantages that the number of the air inlets is more than 1, and the corresponding number can be designed according to the actual product to be dried.
As a preferred scheme, in the quantitative microwave hot air coupling drying oven, a quantitative microwave resonant cavity lighting device is installed on a quantitative microwave resonant cavity.
The types of the hot air and the cold air of the quantitative hot air and cold air switching device can be nitrogen, argon and other protective gases besides air, and can be changed according to product processes. The hot air and cold air switching is realized, the air quantity and the air pressure are controllable, and the inlet air of the equipment enters the air inlet device through the quantitative hot air and cold air switching device after passing through the air source processing piece. The number of the inlets is determined by the number of the products to be dried, and the independent air inlet of the products to be dried in the quantitative microwave resonant cavity is controllable, so that the products are not influenced mutually in the drying process.
The air outlet is similar to an air inlet structure, the air outlet path and the quantity of the air outlet device are determined by the quantity of products in the resonant cavity, the air outlet device is used for exhausting moisture in the resonant cavity in addition to dry gas in the products, and the air speed and the air temperature in the air outlet device are monitored and fed back to the air inlet device to form a whole equipment closed-loop control system.
Has the advantages that: compared with the prior art, it is shown that the effect lies in:
1. aiming at the problems of strong product applicability, no mutual interference among products and high yield;
2. the air inlet mode is automatically switched according to the process, the air quantity and the air pressure are controllable, and the air inlet is diversified;
3. the device is controlled by a closed-loop system, so that the interference is small;
4. the equipment drying application range is wide, and the automation degree is high;
5. by adopting the non-contact microwave suppression door, the microwave leakage suppression effect is good, and the capability of suppressing microwave leakage can be greatly improved; the non-contact type furnace door is in a form and has high automation degree; no part abrasion is caused in the running process of the furnace door; the service life is long.
Drawings
FIG. 1 is a schematic structural diagram of a quantitative microwave hot air coupling drying oven;
FIG. 2 is a schematic structural view of an assembly of a quantitative microwave resonator and a non-contact suppression gate;
FIG. 3 is a schematic view of a non-contact suppression door;
FIG. 4 is a schematic view of a non-contact suppression door;
fig. 5 is a schematic view of a quantitative hot-air and cold-air switching device and an air inlet.
Detailed Description
The present invention is further illustrated by the following figures and specific examples, which are to be understood as illustrative only and not as limiting the scope of the invention, which is to be given the full breadth of the appended claims and any and all equivalent modifications thereof which may occur to those skilled in the art upon reading the present specification.
Example 1
As shown in fig. 1 to 4, a quantitative microwave hot air coupling drying oven comprises a quantitative microwave resonant cavity 1, a 2450MHz non-contact microwave suppression door 2 installed on the quantitative microwave resonant cavity 1, an air inlet 3 and an air outlet connected with the quantitative microwave resonant cavity 1, and a quantitative hot air and cold air switching device 4 connected with the air inlet 3;
the microwave frequency in the quantitative microwave resonant cavity 1 is 2450MHz, a microwave excitation cavity 5 is distributed at the top or the side of the quantitative microwave resonant cavity 1, and a high polymer wave-transparent material clamp for clamping a product is arranged in the quantitative microwave resonant cavity 1; the air inlet of the resonant cavity of the high-molecular wave-transparent material clamp and the air outlet of the resonant cavity.
The 2450MHz non-contact microwave suppression door 2 comprises a suppression main door 2-1, a double-layer suppression sheet 2-2, a suppression hole plate 2-3, a polymer glass plate 2-6, a shielding sealing strip 2-5 and a driving device 2-4;
the driving device 2-4 is connected with the suppression main furnace door 2-1 through a driving plate 2-4-1;
the inner side of the main suppression furnace door 2-1 is provided with a groove, and the hole suppression plate 2-3 is fixed in the groove surface on the inner side of the main suppression furnace door 2-1 through a pan head hexagon socket head screw; the periphery of the hole suppression plate 2-3 is connected with the main furnace door by adopting a shielding sealing strip 2-5, and the hole suppression plate 2-3 is flush with the inner side surface of the main furnace door 2-1; the double-layer suppression sheets 2-2 are fixed around the suppression hole plate 2-3 through the disc head hexagon socket head cap screws; the polymer glass plate 2-6 is arranged on the outer side of the main furnace door 2-1 through a furnace door outer covering plate;
the driving device 2-4 is driven by a cylinder, an air volume adjusting valve is arranged in the driving device 2-4 to adjust the air volume of the furnace door, and a buffer and a limit switch are arranged in the process of inhibiting the main furnace door 2-1 from moving up and down, so that the main furnace door 2-1 can be inhibited from moving up and down stably; the hole sizes and the hole intervals of the hole restraining plates 2-3 are all 3mm, and the holes are arranged in a staggered mode.
The quantitative hot-air and cold-air switching device 4 comprises an electric heating cavity 4-1, an electric heating pipe and a hot-air pipeline which are arranged in the electric heating cavity 4-1, the hot-air pipeline is connected with an electromagnetic valve 4-2, and the electromagnetic valve 4-2 is connected with a cold-air pipeline 4-3;
the air inlet 3 is provided with a high-temperature on-off valve 3-1; the number of the air inlets 3 is more than 1.
The quantitative microwave resonant cavity 1 is provided with a quantitative microwave resonant cavity lighting device 6.
The quantitative microwave resonant cavity 1 is a main cavity for acting materials, microwave energy is fed in from the top or the side of the quantitative microwave resonant cavity, gas enters a quantitative hot air-cooled air switching device 4 after being processed by an air source processing piece, cold air and hot air are switched according to process requirements, the switched air enters an air inlet 3 so as to enter a product to be dried in the quantitative microwave resonant cavity 1, and the air after drying the product is discharged out of the cavity through monitoring of an air outlet. The non-contact microwave suppression door 2 moves up and down in front of the quantitative microwave resonant cavity 1, and microwave leakage of the whole quantitative microwave resonant cavity 1 is guaranteed to meet the national standard. The invention provides a quantitative microwave hot air coupling drying box structure for the first time, compared with the microwave drying box in the traditional form, the quantitative microwave hot air coupling drying box structure has the advantages of automatic switching of air inlet speed and temperature, high automation degree, diversified ventilation modes and wide application range.
The microwave and hot air drying device can control quantitative microwaves and quantitative hot air for different products to be heated, heat and dry the microwaves and the hot air together, can automatically switch the air inlet speed and the air inlet temperature, has high automation degree and diversified ventilation modes, can dry different types of hair products, and has wide application range.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A quantitative microwave hot air coupling drying oven is characterized by comprising a quantitative microwave resonant cavity (1), a 2450MHz non-contact microwave suppression door (2) arranged on the quantitative microwave resonant cavity (1), an air inlet (3) and an air outlet which are connected with the quantitative microwave resonant cavity (1), and a quantitative hot air and cold air switching device (4) connected with the air inlet (3);
the microwave frequency in the quantitative microwave resonant cavity (1) is 2450MHz, a microwave excitation cavity (5) is distributed at the top or the side surface of the quantitative microwave resonant cavity (1), and a high polymer wave-transparent material clamp for clamping a product is arranged in the quantitative microwave resonant cavity (1);
the 2450MHz non-contact microwave suppression door (2) comprises a suppression main door (2-1), a double-layer suppression sheet (2-2), a suppression hole plate (2-3), a polymer glass plate (2-6), a shielding sealing strip (2-5) and a driving device (2-4);
the driving device (2-4) is connected with the suppression main furnace door (2-1) through a driving plate (2-4-1);
the inner side of the main suppression furnace door (2-1) is provided with a groove, and the hole suppression plate (2-3) is fixed in the groove surface of the inner side of the main suppression furnace door (2-1) through a hexagon socket head cap screw; the periphery of the hole inhibiting plate (2-3) is connected with the main furnace door by adopting a shielding sealing strip (2-5), and the hole inhibiting plate (2-3) is flush with the inner side surface of the main furnace door (2-1); the double-layer restraining sheets (2-2) are fixed around the restraining hole plate (2-3) through hexagon socket head screws; the polymer glass plate (2-6) is arranged on the outer side of the main furnace door (1) through a furnace door outer covering plate;
the quantitative hot air and cold air switching device (4) comprises an electric heating cavity (4-1), an electric heating pipe and a hot air pipeline which are arranged in the electric heating cavity (4-1), the hot air pipeline is connected with an electromagnetic valve (4-2), and the electromagnetic valve (4-2) is connected with a cold air pipeline (4-3);
the air inlet (3) is provided with a high-temperature on-off valve (3-1).
2. The new non-contact type damper door structure of 2450MHz microwave equipment as claimed in claim 1, wherein the driving device (2-4) is driven by a cylinder, and an air volume adjusting valve is installed in the driving device (2-4) to adjust the air volume of the oven door, so that the damper main oven door (2-1) can move up and down.
3. The new non-contact type suppressing door structure of 2450MHz microwave equipment as claimed in claim 1, wherein the suppressing main door (2-1) is equipped with a buffer and a limit switch during the up and down movement.
4. The novel non-contact type suppressing gate structure of 2450MHz microwave equipment as claimed in claim 1, wherein the hole size and the hole pitch of the suppressing hole plate (2-3) are both 3mm, and the holes are arranged in a staggered manner.
5. The quantitative microwave hot air coupling drying oven as claimed in claim 1,
the high molecular wave-transparent material clamp is provided with a resonant cavity air inlet and a resonant cavity air outlet.
6. The quantitative microwave hot air coupling drying oven according to claim 1, wherein the number of the air inlets (3) is more than 1.
7. The quantitative microwave hot air coupling drying oven according to claim 1, wherein a quantitative microwave resonant cavity lighting device (6) is installed on the quantitative microwave resonant cavity (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010047980.6A CN111141120A (en) | 2020-01-16 | 2020-01-16 | Quantitative microwave hot air coupling drying oven |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010047980.6A CN111141120A (en) | 2020-01-16 | 2020-01-16 | Quantitative microwave hot air coupling drying oven |
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| Publication Number | Publication Date |
|---|---|
| CN111141120A true CN111141120A (en) | 2020-05-12 |
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| CN202010047980.6A Pending CN111141120A (en) | 2020-01-16 | 2020-01-16 | Quantitative microwave hot air coupling drying oven |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112272425A (en) * | 2020-09-24 | 2021-01-26 | 重庆川仪自动化股份有限公司 | Industrial field on-line microwave heating device |
| CN113154803A (en) * | 2021-03-09 | 2021-07-23 | 山东威高血液净化制品股份有限公司 | Microwave hot air drying device and drying method |
| TWI774036B (en) * | 2020-08-06 | 2022-08-11 | 宏碩系統股份有限公司 | Microwave drying device |
| US11619446B2 (en) | 2020-09-08 | 2023-04-04 | Wave Power Technology Inc. | Microwave drying device and processing box thereof |
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|---|---|---|---|---|
| US4137441A (en) * | 1975-03-31 | 1979-01-30 | Amana Refrigeration, Inc. | Microwave oven door seal system |
| CN2386403Y (en) * | 1999-07-09 | 2000-07-05 | 华南农业大学 | Hot-blast and cold-blast drying test device |
| CN103256642A (en) * | 2013-03-13 | 2013-08-21 | 宁波方太厨具有限公司 | Microwave leakage prevention device for microwave oven |
| CN204555688U (en) * | 2015-01-20 | 2015-08-12 | 苏州市苏丰机械制造有限公司 | A kind of Microwave Industry firing equipment sealing door |
| CN207201852U (en) * | 2017-09-22 | 2018-04-10 | 长齐胜餐饮管理（深圳）有限公司 | Microwave hot air combined roasting plant |
| CN208223132U (en) * | 2018-04-25 | 2018-12-11 | 龙钜超洁净科技（苏州）有限公司 | A kind of dryer cold-hot wind switching device |
| CN209807029U (en) * | 2019-01-17 | 2019-12-20 | 武汉太福制药有限公司 | Sterilizing equipment is used in oral liquid production and processing |
| CN212299743U (en) * | 2020-01-16 | 2021-01-05 | 南京三乐微波技术发展有限公司 | Quantitative microwave hot air coupling drying oven |
-
2020
- 2020-01-16 CN CN202010047980.6A patent/CN111141120A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4137441A (en) * | 1975-03-31 | 1979-01-30 | Amana Refrigeration, Inc. | Microwave oven door seal system |
| CN2386403Y (en) * | 1999-07-09 | 2000-07-05 | 华南农业大学 | Hot-blast and cold-blast drying test device |
| CN103256642A (en) * | 2013-03-13 | 2013-08-21 | 宁波方太厨具有限公司 | Microwave leakage prevention device for microwave oven |
| CN204555688U (en) * | 2015-01-20 | 2015-08-12 | 苏州市苏丰机械制造有限公司 | A kind of Microwave Industry firing equipment sealing door |
| CN207201852U (en) * | 2017-09-22 | 2018-04-10 | 长齐胜餐饮管理（深圳）有限公司 | Microwave hot air combined roasting plant |
| CN208223132U (en) * | 2018-04-25 | 2018-12-11 | 龙钜超洁净科技（苏州）有限公司 | A kind of dryer cold-hot wind switching device |
| CN209807029U (en) * | 2019-01-17 | 2019-12-20 | 武汉太福制药有限公司 | Sterilizing equipment is used in oral liquid production and processing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI774036B (en) * | 2020-08-06 | 2022-08-11 | 宏碩系統股份有限公司 | Microwave drying device |
| US11619446B2 (en) | 2020-09-08 | 2023-04-04 | Wave Power Technology Inc. | Microwave drying device and processing box thereof |
| CN112272425A (en) * | 2020-09-24 | 2021-01-26 | 重庆川仪自动化股份有限公司 | Industrial field on-line microwave heating device |
| CN113154803A (en) * | 2021-03-09 | 2021-07-23 | 山东威高血液净化制品股份有限公司 | Microwave hot air drying device and drying method |
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