CN114061294A - Microwave drying device and treatment box thereof - Google Patents
Microwave drying device and treatment box thereof Download PDFInfo
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- CN114061294A CN114061294A CN202010782938.9A CN202010782938A CN114061294A CN 114061294 A CN114061294 A CN 114061294A CN 202010782938 A CN202010782938 A CN 202010782938A CN 114061294 A CN114061294 A CN 114061294A
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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
- H05B6/78—Arrangements for continuous movement of material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
- F26B13/12—Controlling movement, tension or position of material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/003—Handling, e.g. loading or unloading arrangements for articles
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- 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
- H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
- H05B2206/04—Heating using microwaves
- H05B2206/046—Microwave drying of wood, ink, food, ceramic, sintering of ceramic, clothes, hair
Abstract
The invention relates to a microwave drying device and a processing box thereof. One outer wall of the processing box is provided with two mounting openings which are arranged at intervals along a conveying direction, and two air exhaust partition plates and a plurality of channel partition plates are arranged in the processing box. The air exhaust partition plate divides the box body into an air exhaust space and a microwave drying space, the channel partition plate is arranged at intervals along the conveying direction to enable the microwave drying space to form a traveling wave channel which extends in a back-and-forth zigzag mode, and two ends of the traveling wave channel are respectively communicated with the two mounting openings. The two microwave emitting molds are respectively arranged to emit microwaves towards the two mounting openings. The air extractor is communicated with the microwave drying space through the air extracting space. The object to be dried can be dried by microwave heating through the microwave channel along the conveying direction. Therefore, the drying speed can be greatly increased, and the structure is compact so as to save space.
Description
Technical Field
The present invention relates to a microwave drying device, and more particularly, to a continuous microwave drying device for thin films.
Background
Currently, rechargeable electronic products mainly use lithium batteries as energy storage devices. An isolating membrane is arranged between the anode and the cathode of the lithium battery, and the isolating membrane is a porous film made of high polymer materials or non-woven fabrics, ceramics and other materials. The barrier film must also be able to absorb electrolyte while preventing the short circuit caused by direct contact of the positive and negative electrodes, so that lithium ions can flow between the positive and negative electrodes, and the performance of the lithium battery is greatly affected.
The separator needs to be dried before the electrolyte is added to ensure the performance of the assembled lithium battery. However, the conventional isolation film drying process is time-consuming, and generally, the isolation film (including the ceramic isolation film) is left standing for three days in a drying chamber and then baked in a vacuum oven for 8 hours to be sufficiently dried. In addition, since the isolation film is not resistant to high temperature, the temperature of the oven needs to be less than 100 ℃, and the drying time is difficult to shorten. In addition, the drying chamber and the oven have the problems of large volume and excessive space occupation.
Therefore, the existing isolation film drying technology needs to be improved.
Disclosure of Invention
In view of the foregoing disadvantages and drawbacks of the prior art, the present invention provides a microwave drying apparatus, which uses microwaves to uniformly heat and dry a barrier film, so as to greatly increase the drying speed.
In order to achieve the above object, the present invention provides a microwave drying apparatus, comprising:
a treatment tank which is a hollow body and has:
the two conveying outer walls are arranged at intervals along a conveying direction, and each conveying outer wall is provided with a box body conveying opening;
a mounting outer wall connected between the two conveying outer walls and having two mounting openings; the two mounting openings are arranged at intervals along the conveying direction;
the installation outer wall and the closed outer wall are respectively positioned at two opposite sides of the treatment box;
at least one air-extracting partition board which is arranged in the processing box and divides the internal space of the processing box into at least one air-extracting space and a microwave drying space; at least one air extraction clapboard is provided with a plurality of air extraction holes in a penetrating way;
a plurality of channel partitions disposed in the microwave drying space; the plurality of channel clapboards are arranged at intervals along the conveying direction and enable the microwave drying space to form a traveling wave channel which extends in a zigzag way, the two opposite ends of the traveling wave channel are respectively communicated with the two mounting openings, and the plurality of air exhaust holes of at least one air exhaust clapboard are communicated with the traveling wave channel and at least one air exhaust space; each channel partition plate is provided with a partition plate conveying opening; the baffle conveying openings of the channel baffles and the box conveying openings of the conveying outer walls are positioned on a straight line;
at least one air extractor connected to the air extracting space;
at least one microwave transmitting module which is arranged on the installation outer wall of the processing box and transmits microwaves to the traveling wave channel.
In order to achieve the above object, the present invention further provides a processing box of a microwave drying apparatus, the processing box being a hollow body and having:
the two conveying outer walls are arranged at intervals along a conveying direction, and each conveying outer wall is provided with a box body conveying opening;
a mounting outer wall connected between the two conveying outer walls and having two mounting openings; the two mounting openings are arranged at intervals along the conveying direction;
the installation outer wall and the closed outer wall are respectively positioned at two opposite sides of the treatment box;
at least one air-extracting partition board which is arranged in the processing box and divides the internal space of the processing box into at least one air-extracting space and a microwave drying space; at least one air extraction clapboard is provided with a plurality of air extraction holes in a penetrating way;
a plurality of channel partitions disposed in the microwave drying space; the plurality of channel clapboards are arranged at intervals along the conveying direction and enable the microwave drying space to form a traveling wave channel which extends in a zigzag way, two opposite ends of the traveling wave channel are respectively communicated with the two mounting openings, and the plurality of air exhaust holes of at least one air exhaust clapboard are communicated with the traveling wave channel and at least one air exhaust space; each channel partition plate is provided with a partition plate conveying opening; the baffle conveying openings of the channel baffles and the box conveying openings of the conveying outer walls are positioned on a straight line.
When the invention is used, the object to be dried enters the processing box from one box body conveying opening of the processing box, then the object penetrates through the reciprocating traveling wave channel through the partition plate conveying opening, is heated and dried in the traveling wave channel, and then penetrates out from the other box body conveying opening of the processing box.
The invention has the advantages that:
first, the article to be dried absorbs the traveling wave energy in the traveling wave channel and is heated and dried while passing through the traveling wave channel. Because the microwave is easy to penetrate through the object, the surface and the interior of the object are heated and heated simultaneously, and compared with the standing and baking in the prior art, the microwave oven can greatly shorten the time required by drying treatment, and has smaller volume and space saving.
Second, the side walls (i.e., channel partitions) of each channel segment formed by the back-and-forth meandering in the traveling wave channel are shared with the adjacent channel segments, i.e., each channel partition simultaneously forms the side walls of both channel segments. Therefore, the traveling wave channel is formed by using less materials, the weight can be reduced, the cost is saved, the structure is compact, and the effect of further saving the space is achieved.
Thirdly, by arranging two installation openings for corresponding microwave emission modules at the same side of the processing box, even if two microwave emission modules are installed outside the processing box, the total width (the dimension perpendicular to the conveying direction) of the microwave emission module is still the same as the total width when only a single microwave emission module is installed, so that the microwave emission module has a more compact structure when two microwave emission modules are installed, and more space can be saved.
Fourthly, the inside of the processing box is divided into the air exhaust space by the air exhaust partition plate, and the liquid vapor in the microwave drying space can be quickly and uniformly exhausted out of the microwave drying device through the air exhaust holes in the air exhaust partition plate, so that the drying effect can be improved.
Further, in the microwave drying device, the number of at least one microwave transmitting module is two, and the two microwave transmitting modules respectively transmit microwaves to the two mounting openings. By arranging the two microwave transmitting modules on the outer wall of the processing box and respectively transmitting microwaves to the two opposite ends of the traveling wave channel, the effect of drying and dehydrating the microwaves can be improved.
Furthermore, in the microwave drying device, the frequencies of the microwaves emitted by the two microwave emitting modules are different.
In addition, in the microwave drying device, the frequency of the microwave emitted by one of the microwave emitting modules is 2455 to 2465 mhz, and the frequency of the microwave emitted by the other microwave emitting module is 2435 to 2445 mhz. Under the condition that microwave transmitting modules are installed at two ends of the traveling wave channel, microwaves of the two microwave transmitting modules are easy to interfere with each other to cause phase locking, standing waves are generated in the traveling wave channel, and then the heating uniformity of an object to be heated is influenced. By properly staggering the frequencies transmitted by the two microwave transmitting modules, the phase locking condition can be improved, and the heating uniformity is improved.
Further, each microwave emitting module of the microwave drying device comprises a microwave source and at least one circulator, and at least one circulator is connected in series between the microwave source and the corresponding mounting opening; at least one of the circulators provides microwave isolation of the corresponding mounting opening from the microwave source in excess of minus 40 decibels. By connecting the circulator (or circulator) between the microwave source (or magnetron) and the mounting opening in series, the problem that the microwave transmitting modules are easy to interfere with each other and lock the phase can be improved when the overall isolation of the circulator exceeds minus 40 decibels (db). In addition, when the whole isolation degree of the circulator exceeds 40 decibels and the frequencies emitted by the two microwave emitting modules are staggered, the phase locking problem can be almost eliminated, and the heating uniformity is ensured.
Further, the microwave drying device, wherein: the number of the at least one air extraction partition plate and the number of the at least one air extraction space are two, the two air extraction partition plates are arranged at intervals up and down, and the microwave drying space is formed between the two air extraction partition plates; the number of the at least one air extracting device is two, and the two air extracting devices are respectively communicated with the two air extracting spaces.
Further, the microwave drying device, wherein the processing box further has: two microwave side plates arranged in the treatment box, wherein each microwave side plate and one of the conveying outer walls are arranged at intervals to form a microwave inhibition space, and the microwave drying space is formed between the two microwave side plates; each microwave side plate is provided with a microwave conveying opening which is communicated with the corresponding microwave inhibiting space and the corresponding microwave drying space, and two microwave conveying openings of the two microwave side plates, a plurality of partition plate conveying openings of the channel partition plates and two box body conveying openings of the two conveying outer walls are positioned on a straight line; a plurality of microwave suppressing parts are arranged in the microwave suppressing space corresponding to each microwave side plate.
Further, in the microwave drying device, the baffle plate conveying opening of each channel baffle plate is an elongated opening.
Further, the microwave drying device, wherein the traveling wave channel comprises: a plurality of straight line segments parallel to each other and arranged in the conveying direction; and each connecting section is connected with one end of two adjacent straight line sections.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the invention as a matter of case.
Fig. 1 is a perspective view of the present invention.
FIG. 2 is a perspective view of the present invention at another angle.
Fig. 3 is an exploded view of a perspective assembly of the present invention.
FIG. 4 is an exploded assembly view of the upper half of the treatment tank of the present invention.
Fig. 5 is a top view of the present invention.
FIG. 6 is a schematic sectional top view of a treatment tank of the present invention.
FIG. 7 is a schematic side cross-sectional view of the present invention.
FIG. 8 is a schematic side cross-sectional view of the present invention at another angle.
Detailed Description
The details of the present invention can be more clearly understood in conjunction with the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of illustration only and are not to be construed as limiting the invention in any way. Any possible variations based on the present invention may be conceived by the skilled person in the light of the teachings of the present invention, and these should be considered to fall within the scope of the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may be present.
Referring to fig. 1 and 2, the microwave drying apparatus of the present invention comprises a processing chamber 10, two microwave emitting modules 20 and two air-extracting devices 30. In the present embodiment, the present invention is used for drying the separator a of a roll-to-roll lithium battery, but the present invention is not limited thereto, and the present invention is also applicable to various strip films, and may be used in combination with a conveyor belt to heat and dry a to-be-dried object that is not a strip film.
Referring to fig. 1, 3, 5 and 7, the processing chamber 10 is a hollow body having two conveying outer walls 101, a mounting outer wall 102, a sealing outer wall 103, a top wall 104, a bottom wall 105, two pumping partitions 11, and a plurality of passage partitions 12; and in the present embodiment, two microwave side plates 13 are further provided. The two conveying outer walls 101 are spaced apart in a conveying direction D, and each conveying outer wall 101 has a box conveying opening 106, and the box conveying opening 106 is preferably an elongated opening. The mounting outer wall 102 is connected between the two transport outer walls 101 and is preferably perpendicular to the two transport outer walls 101. The mounting outer wall 102 has two mounting openings 107, and the two mounting openings 107 are provided at intervals in the conveying direction D and are located on the same side of the processing tank 10. The closed outer wall 103 is connected between the two conveying outer walls 101, and the installation outer wall 102 and the closed outer wall 103 are respectively located on opposite sides of the treatment tank 10. In the present embodiment, the treatment tank 10 is formed by assembling two substantially symmetrical metal blocks by cutting (as shown in fig. 3), and therefore most of the structure of the treatment tank 10 is also formed by assembling the two metal blocks, but not limited thereto.
Referring to fig. 4, 7 and 8, two pumping partitions 11 are disposed in the processing chamber 10 and spaced apart from each other to divide the inner space of the processing chamber 10 into two pumping spaces and a microwave drying space 16, wherein the microwave drying space 16 is formed between the two pumping partitions 11. Specifically, one of the pumping partitions 11 is spaced from the top wall 104 of the processing chamber to form an upper pumping plenum 14, and the other pumping partition 11 is spaced from the bottom wall 105 of the processing chamber 10 to form a lower pumping plenum 15. Each of the air-extracting partition plates 11 has a plurality of air-extracting holes 111 formed therethrough, and the air-extracting holes 111 are preferably elongated openings extending in the conveying direction D. The two air-extracting devices 30 are respectively connected to the upper air-extracting space 14 and the lower air-extracting space 15, so that the liquid vapor in the microwave drying space 16 can be rapidly and uniformly extracted out of the present invention through the air-extracting holes 111 on the air-extracting partition 11. The air extractor 30 is known in the art, and therefore only a portion of the extraction tube of the air extractor 30 is shown in the drawings.
Referring to fig. 3, 6 and 8, two microwave side plates 13 are disposed in the treatment chamber 10 and are located on opposite sides of all the channel partitions 12. Each microwave side plate 13 is spaced apart from one of the conveying outer walls 101 to form a microwave suppression space 17, and a plurality of microwave suppressors 171 are arranged in the microwave suppression space 17 in order, but the microwave suppressors 171 are not limited to the arrangement. The microwave drying space 16 is formed between the two microwave side plates 13. Each microwave side plate 13 has a microwave conveying opening 131 (as shown in fig. 8), and the microwave conveying opening 131 communicates with the corresponding microwave suppressing space 17 and the microwave drying space 16, that is, the microwave drying space 16 and each conveying outer wall 101 are formed by disposing the microwave side plate 13, so that the microwaves in the microwave drying space 16 can be leaked into the microwave suppressing space 17 through the microwave conveying opening 131, but the microwave suppressing space 17, in cooperation with the microwave suppressing member 171, can prevent the microwaves from further leaking into the external environment through the box conveying opening 106 of the conveying outer wall 101.
Referring to fig. 3, fig. 6 and fig. 8, the channel partition 12 is disposed in the microwave drying space 16, the channel partition 12 is disposed at intervals along the conveying direction D, and the microwave drying space 16 forms a traveling wave channel 41 extending in a zigzag manner, and two opposite ends of the traveling wave channel 41 are respectively communicated with two installation openings 107. Specifically, each of the passage separators 12 is a long flat plate perpendicular to the direction of conveyance D; half channel partition plate 12's one end is connected installation outer wall 102, and the other end sets up with sealing outer wall 103 interval, and sealing outer wall 103 is connected to the one end of other half channel partition plate 12, and the other end sets up with installation outer wall 102 interval, makes travelling wave channel 41 have a plurality of straightway 411 and a plurality of linkage segment 412. The straight line segments 411 are parallel to each other and arranged along the conveying direction D, and one end of each of two adjacent straight line segments 411 is connected to each other through one of the connecting segments 412 (i.e., each connecting segment 412 connects one end of each of two adjacent straight line segments 411), but the traveling wave channel 41 is not limited to have the straight line segments 411. In the present embodiment, the two extraction partitions 11 form the top and bottom surfaces of the traveling wave duct 41, respectively.
Referring to fig. 3, 7 and 8, each channel baffle 12 has a baffle feed opening 121, and the baffle feed opening 121 is preferably an elongated opening. The box conveying opening 106 of one of the conveying outer walls 101, the microwave conveying opening 131 of one of the microwave side plates 13, the partition conveying opening 121 of the channel partition, the microwave conveying opening 131 of the other microwave side plate 13 and the box conveying opening 106 of the other conveying outer wall 101 are sequentially arranged on a straight line for the isolation film a to pass through. Furthermore, the aforementioned delivery openings 106, 131, 121 are preferably all elongated openings. The air-extracting holes 111 of the air-extracting partition plates 11 communicate with the corresponding air-extracting spaces and the traveling wave passages 41.
Referring to fig. 1, 5 and 6, two microwave emitting modules 20 are disposed on the installation outer wall 102 of the processing box 10 and emit microwaves toward the traveling wave channel 41 through two installation openings 107, respectively. The microwaves of the microwave emitting module 20 form a traveling wave in the traveling wave channel 41, so that the isolation film a can be dried and dehydrated uniformly at all positions in the width direction. In other embodiments with lower requirements for drying efficiency, the present invention may also have only one microwave emitting module 20 emitting microwaves towards one of the mounting openings 107.
In addition, experiments show that, under the condition that the microwave emitting modules 20 are installed at both ends of the traveling wave channel 41, the microwaves of the two microwave emitting modules 20 are easily interfered with each other to cause phase locking, so that standing waves occur in the traveling wave channel 41, and the drying uniformity of the isolation film a is further affected. Therefore, in the present embodiment, the frequencies of the microwaves emitted by the two microwave emitting modules 20 are different, thereby improving the phase lock condition and ensuring the heating uniformity. Specifically, for better effect, the frequency of the microwave emitted from one microwave emitting module 20 is 2455 to 2465 mhz, and the frequency of the microwave emitted from the other microwave emitting module 20 is 2435 to 2445 mhz. In embodiments having only one microwave transmitter module 20, the microwave frequency is preferably 2420 to 2480 mhz.
Further, each microwave emitting module 20 includes a microwave source 21 and two circulators 22, and the two circulators 22 are connected in series between the microwave source 21 and the corresponding mounting opening 107. The circulator 22 functions to absorb the microwave from the microwave source 21 at the other end of the traveling wave channel 41, so as to isolate the microwave sources 21 of the two microwave transmitting modules 20 from each other, thereby protecting the microwave sources 21 and improving the phase lock condition. Practical tests show that the overall isolation of the circulator 22 of the single microwave transmitting module 20 exceeds minus 40 decibels (db), and the phase locking phenomenon can almost disappear when the frequencies of the two microwave sources 21 are properly staggered. However, the isolation of a single conventional commercial circulator 22 is about negative 23 db, so that each microwave emitting module 20 in this embodiment still needs to connect two circulators 22 in series, so that the microwave isolation (i.e. the aforementioned overall isolation) from the corresponding mounting opening 107 to the corresponding microwave source 21 exceeds negative 40 db. It is also possible to install only one circulator 22 when the isolation of a single circulator 22 exceeds negative 40 db. In addition, the present invention has only one microwave transmitting module 20, and thus, only one conventional circulator 22 is required to be installed.
Referring to fig. 1, 5 and 8, in use, the isolation film a is passed through the processing box 10 along the conveying direction and properly straightened, then the air-extracting device 30 is started, and then the microwave emitting module 20 is started, and then the isolation film a is sent and received. The microwave of the microwave emitting module 20 can evaporate the liquid of the isolation film a rapidly, so as to achieve the drying effect. The liquid vapor generated during the drying process of the isolation film A enters the pumping spaces 14 and 15 through the pumping holes 111, and then is pumped out by the pumping device 30. Practical experiments prove that the drying speed of the isolation film A is about 10 meters per minute, and the drying speed of the isolation film A can be greatly improved. In addition, the drying speed can be increased proportionally by increasing the number of straight segments 411 of the traveling wave channel 41.
Still another advantage of the present invention is: the two air-extracting partition boards 11 are respectively arranged at the top and the bottom of the microwave drying space 16, so that when the air-extracting device 30 extracts air, the air-extracting forces borne by the two opposite side surfaces of the isolating membrane a are approximately the same, and the isolating membrane a and the processing box 10 are prevented from being rubbed due to the displacement and deformation of the two side surfaces of the isolating membrane a caused by uneven stress. However, the number of the pumping partitions 11 is not limited to this, and the present invention may have only one pumping partition 11 and only one pumping space, but the number of the microwave drying spaces 16 is only one regardless of the number of the pumping partitions 11 of the present invention.
In summary, the present invention utilizes microwave to dry the isolation film a, which can greatly increase the drying speed. In addition, the present invention forms the traveling wave channel 41 and the pumping spaces 14, 15 extending zigzag in the treatment chamber 10 by the partition plates, and the two mounting openings 107 for the corresponding microwave radiation modules 20 are provided on the same side of the treatment chamber 10, thereby making the structure of the present invention compact and saving space, weight and cost.
Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalents and alternatives falling within the spirit and scope of the invention.
Claims (10)
1. A microwave drying apparatus, comprising:
a treatment tank which is a hollow body and has:
the two conveying outer walls are arranged at intervals along a conveying direction, and each conveying outer wall is provided with a box body conveying opening;
a mounting outer wall connected between the two conveying outer walls and having two mounting openings; the two mounting openings are arranged at intervals along the conveying direction;
the installation outer wall and the closed outer wall are respectively positioned at two opposite sides of the treatment box;
at least one air-extracting partition board which is arranged in the processing box and divides the internal space of the processing box into at least one air-extracting space and a microwave drying space; at least one air extraction clapboard is provided with a plurality of air extraction holes in a penetrating way;
a plurality of channel partitions disposed in the microwave drying space; the plurality of channel clapboards are arranged at intervals along the conveying direction and enable the microwave drying space to form a traveling wave channel which extends in a zigzag way, two opposite ends of the traveling wave channel are respectively communicated with the two mounting openings, and the plurality of air exhaust holes of at least one air exhaust clapboard are communicated with the traveling wave channel and at least one air exhaust space; each channel partition plate is provided with a partition plate conveying opening; the baffle conveying openings of the channel baffles and the box conveying openings of the conveying outer walls are positioned on a straight line;
at least one air extractor connected to the air extracting space;
at least one microwave transmitting module which is arranged on the installation outer wall of the processing box and transmits microwaves to the traveling wave channel.
2. A microwave drying apparatus as claimed in claim 1, wherein the number of at least one microwave emitting module is two, and two microwave emitting modules emit microwaves toward two mounting openings, respectively.
3. A microwave drying apparatus as claimed in claim 2, wherein the microwave transmitting modules transmit different frequencies of microwaves.
4. A microwave drying apparatus as claimed in claim 3 wherein the microwave frequency emitted by one of the microwave emitting modules is 2455 to 2465 mhz and the microwave frequency emitted by the other of the microwave emitting modules is 2435 to 2445 mhz.
5. A microwave drying apparatus as claimed in any one of claims 2 to 4, wherein each microwave transmitting module includes a microwave source and at least one circulator, at least one circulator being connected in series between the microwave source and the corresponding mounting opening; at least one of the circulators provides microwave isolation of the corresponding mounting opening from the microwave source in excess of minus 40 decibels.
6. Microwave drying unit according to one of the claims 1 to 4,
the number of the at least one air extraction partition plate and the number of the at least one air extraction space are two, the two air extraction partition plates are arranged at intervals up and down, and the microwave drying space is formed between the two air extraction partition plates;
the number of the at least one air extracting device is two, and the two air extracting devices are respectively communicated with the two air extracting spaces.
7. A microwave drying apparatus as claimed in any one of claims 1 to 4, in which the treatment chamber has:
two microwave side plates arranged in the treatment box, wherein each microwave side plate and one of the conveying outer walls are arranged at intervals to form a microwave inhibition space, and the microwave drying space is formed between the two microwave side plates; each microwave side plate is provided with a microwave conveying opening which is communicated with the corresponding microwave inhibiting space and the corresponding microwave drying space, and two microwave conveying openings of the two microwave side plates, a plurality of partition plate conveying openings of a plurality of channel partition plates and two box body conveying openings of two conveying outer walls are positioned on a straight line; a plurality of microwave suppressing parts are arranged in the microwave suppressing space corresponding to each microwave side plate.
8. A microwave drying apparatus as in any one of claims 1 to 4 wherein the baffle delivery opening of each of the channel baffles is an elongated opening.
9. A microwave drying apparatus as in any one of claims 1 to 4, wherein the traveling wave channel comprises:
a plurality of straight line segments parallel to each other and arranged in the conveying direction;
and each connecting section is connected with one end of two adjacent straight line sections.
10. A treatment tank of a microwave drying apparatus, characterized in that the treatment tank is a hollow body and has:
the two conveying outer walls are arranged at intervals along a conveying direction, and each conveying outer wall is provided with a box body conveying opening;
a mounting outer wall connected between the two conveying outer walls and having two mounting openings; the two mounting openings are arranged at intervals along the conveying direction;
the installation outer wall and the closed outer wall are respectively positioned at two opposite sides of the treatment box;
at least one air-extracting partition board which is arranged in the processing box and divides the internal space of the processing box into at least one air-extracting space and a microwave drying space; at least one air extraction clapboard is provided with a plurality of air extraction holes in a penetrating way;
a plurality of channel partitions disposed in the microwave drying space; the plurality of channel clapboards are arranged at intervals along the conveying direction and enable the microwave drying space to form a traveling wave channel which extends in a zigzag way, two opposite ends of the traveling wave channel are respectively communicated with the two mounting openings, and the plurality of air exhaust holes of at least one air exhaust clapboard are communicated with the traveling wave channel and at least one air exhaust space; each channel partition plate is provided with a partition plate conveying opening; the baffle conveying openings of the channel baffles and the box conveying openings of the conveying outer walls are positioned on a straight line.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010782938.9A CN114061294A (en) | 2020-08-06 | 2020-08-06 | Microwave drying device and treatment box thereof |
| EP21161269.2A EP3952612B1 (en) | 2020-08-06 | 2021-03-08 | Microwave drying device and processing box thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010782938.9A CN114061294A (en) | 2020-08-06 | 2020-08-06 | Microwave drying device and treatment box thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114061294A true CN114061294A (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010782938.9A Pending CN114061294A (en) | 2020-08-06 | 2020-08-06 | Microwave drying device and treatment box thereof |
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| Country | Link |
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| EP (1) | EP3952612B1 (en) |
| CN (1) | CN114061294A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19624610A1 (en) * | 1996-06-20 | 1998-01-02 | Colortronic Gmbh | Method and device for drying |
| CN101448348A (en) * | 2008-11-27 | 2009-06-03 | 电子科技大学 | Spiral trumpet shaped microwave energy reclaiming antenna and array microwave heating apparatus thereof |
| CN101581534A (en) * | 2009-06-29 | 2009-11-18 | 温州大学 | Continuous-type microwave hot air combined drying equipment |
| CN205279700U (en) * | 2015-12-22 | 2016-06-01 | 神华集团有限责任公司 | Material microwave drying system |
| US20180270916A1 (en) * | 2017-03-15 | 2018-09-20 | 915 Labs, LLC | Multi-pass microwave heating system |
| CN108633122A (en) * | 2018-04-27 | 2018-10-09 | 京信通信系统（中国）有限公司 | Microwave heating control method, system, device and microwave heating equipment |
| TWI641791B (en) * | 2018-01-31 | 2018-11-21 | 睿明科技股份有限公司 | Microwave drying device |
| CN110160337A (en) * | 2018-02-13 | 2019-08-23 | 睿明科技股份有限公司 | Microwave drier |
| CN110186253A (en) * | 2019-05-29 | 2019-08-30 | 南京禹智智能科技有限公司 | A kind of microwave dryer and its drying means for grain processing |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1173816A (en) * | 1967-05-23 | 1969-12-10 | Metal Box Co Ltd | Improvements in Drying Printed Materials |
| US5422463A (en) * | 1993-11-30 | 1995-06-06 | Xerox Corporation | Dummy load for a microwave dryer |
| JP5486374B2 (en) * | 2010-03-30 | 2014-05-07 | 日本碍子株式会社 | Honeycomb molded body drying apparatus and drying method |
| US9849708B1 (en) * | 2017-02-23 | 2017-12-26 | Ricoh Company, Ltd. | Microwave dryer of a print system with modulation of the microwave source using frequency shift keying |
| TWM567491U (en) | 2018-04-19 | 2018-09-21 | 廖偉豪 | Battery diaphragm drying device |
-
2020
- 2020-08-06 CN CN202010782938.9A patent/CN114061294A/en active Pending
-
2021
- 2021-03-08 EP EP21161269.2A patent/EP3952612B1/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19624610A1 (en) * | 1996-06-20 | 1998-01-02 | Colortronic Gmbh | Method and device for drying |
| CN101448348A (en) * | 2008-11-27 | 2009-06-03 | 电子科技大学 | Spiral trumpet shaped microwave energy reclaiming antenna and array microwave heating apparatus thereof |
| CN101581534A (en) * | 2009-06-29 | 2009-11-18 | 温州大学 | Continuous-type microwave hot air combined drying equipment |
| CN205279700U (en) * | 2015-12-22 | 2016-06-01 | 神华集团有限责任公司 | Material microwave drying system |
| US20180270916A1 (en) * | 2017-03-15 | 2018-09-20 | 915 Labs, LLC | Multi-pass microwave heating system |
| TWI641791B (en) * | 2018-01-31 | 2018-11-21 | 睿明科技股份有限公司 | Microwave drying device |
| CN110160337A (en) * | 2018-02-13 | 2019-08-23 | 睿明科技股份有限公司 | Microwave drier |
| CN108633122A (en) * | 2018-04-27 | 2018-10-09 | 京信通信系统（中国）有限公司 | Microwave heating control method, system, device and microwave heating equipment |
| CN110186253A (en) * | 2019-05-29 | 2019-08-30 | 南京禹智智能科技有限公司 | A kind of microwave dryer and its drying means for grain processing |
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| EP3952612B1 (en) | 2022-10-19 |
| EP3952612A1 (en) | 2022-02-09 |
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