CN116294460A - Microwave vacuum drying equipment and drying method - Google Patents

Microwave vacuum drying equipment and drying method Download PDF

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Publication number
CN116294460A
CN116294460A CN202310315099.3A CN202310315099A CN116294460A CN 116294460 A CN116294460 A CN 116294460A CN 202310315099 A CN202310315099 A CN 202310315099A CN 116294460 A CN116294460 A CN 116294460A
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CN
China
Prior art keywords
microwave
vacuum drying
drying
vacuum
furnace body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310315099.3A
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Chinese (zh)
Inventor
王子谦
于兴智
贲月
高腾飞
袁月
常思盎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Vacuum Electonics Research Institute
Original Assignee
Beijing Vacuum Electonics Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Vacuum Electonics Research Institute filed Critical Beijing Vacuum Electonics Research Institute
Priority to CN202310315099.3A priority Critical patent/CN116294460A/en
Publication of CN116294460A publication Critical patent/CN116294460A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
    • F26B9/066—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers the products to be dried being disposed on one or more containers, which may have at least partly gas-previous walls, e.g. trays or shelves in a stack
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/04—Heating arrangements using electric heating
    • 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
    • F26B25/008—Seals, locks, e.g. gas barriers or air curtains, for drying enclosures
    • 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
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/14—Chambers, containers, receptacles of simple construction
    • F26B25/18—Chambers, containers, receptacles of simple construction mainly open, e.g. dish, tray, pan, rack
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F26B5/044—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum for drying materials in a batch operation in an enclosure having a plurality of shelves which may be heated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F26B5/048—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum in combination with heat developed by electro-magnetic means, e.g. microwave energy

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Sustainable Development (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The embodiment of the invention discloses a microwave vacuum drying device and a drying method, comprising the following steps: the inner cavity of the drying furnace body is a vacuum drying chamber; the microwave generators are arranged around the side wall of the drying furnace body and are uniformly distributed on the periphery of the drying furnace body in a matrix structure; the material rack is detachably suspended in the vacuum drying chamber and is used for bearing materials; the axis of the microwave generator is perpendicular to the axis of the drying furnace body, the transmitting end of the microwave generator is positioned in the vacuum drying chamber, the microwave generator is divided into groups, each group of microwave generators is sequentially switched on and off, a transformed microwave field which can act on each position of the material is generated, the purpose of uniformly heating the material is achieved, meanwhile, the rotating material rack is replaced, the material rack does not need to rotate and can be separated from the drying furnace body, the feeding efficiency is improved, and the automatic production line for freeze drying can be quickly applied to the existing automatic production line for freeze drying.

Description

Microwave vacuum drying equipment and drying method
Technical Field
The invention relates to the technical field of microwave drying. And more particularly, to a microwave vacuum drying apparatus and a drying method.
Background
Microwave heating is a heating mode which utilizes an object to absorb microwave energy and convert the microwave energy into heat energy, so that the whole object is heated at the same time, the penetrating power of the microwave is strong, and the heated object is heated by the high-frequency repetitive motion of dipole molecules in the heated object to generate internal friction heat, so that the temperature of the heated object is raised, and according to the characteristic of the microwave, microwave vacuum drying equipment is widely used at present for drying. The microwave generation direction of the existing microwave drying equipment is fixed, a central shaft and a material rack positioned on the central shaft are arranged in a drying chamber, the material rack is driven to do uniform circular motion through the rotation of the central shaft, the relatively fixed central shaft and a driving motor exist in the structure, and the material rack cannot be detached, so that the defects of low feeding efficiency, high automatic production difficulty and low space utilization rate exist.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a microwave vacuum drying apparatus which is uniform in heating and high in feeding efficiency.
Another object of the present invention is to provide a drying method for drying a material using the above-mentioned microwave vacuum drying apparatus.
In order to achieve the above purpose, the invention adopts the following technical scheme:
according to an aspect of the present invention, there is provided a microwave vacuum drying apparatus comprising:
the inner cavity of the drying furnace body is a vacuum drying chamber;
the microwave generators are arranged around the side wall of the drying furnace body and are uniformly distributed on the periphery of the drying furnace body in a matrix structure; and
the material rack is detachably suspended in the vacuum drying chamber and is used for bearing materials;
the axis of the microwave generator is perpendicular to the axis of the drying furnace body, the transmitting end of the microwave generator is positioned in the vacuum drying chamber, a plurality of microwave generators are arranged in groups, and each group of microwave generators are sequentially started to heat materials.
In addition, preferably, the side wall of the drying furnace body comprises a plurality of mounting holes communicated with the vacuum drying chamber;
the microwave generators are respectively combined and fixed in the mounting holes, and the transmitting ends of the microwave generators penetrate through the mounting holes to act on the materials on the material rack.
Furthermore, it is preferable that the transmitting end of the microwave generator includes a sealing window.
In addition, the material rack preferably comprises a connecting part which is used for being combined and fixed with the drying furnace body and a plurality of layers of bearing plates which are used for bearing the dried materials.
In addition, preferably, the vacuum drying chamber comprises a mounting chute correspondingly matched with the connecting part, and the connecting part is movably inserted into the mounting chute.
In addition, preferably, the end part of the drying furnace body comprises a material inlet communicated with the vacuum drying chamber, and a furnace door is arranged at the material inlet in a sealing way.
Furthermore, it is preferred that the oven door comprises an observation window.
In addition, preferably, the drying furnace body comprises a vacuum pumping hole communicated with the vacuum drying chamber, and the vacuum pumping hole is connected with a vacuum pump through a vacuum pipeline.
Furthermore, it is preferable that each set of the microwave generators is capable of individually controlling on and off.
According to another aspect of the present invention, there is provided a drying method for drying a material using a microwave vacuum drying apparatus, comprising:
uniformly and horizontally laying the materials on the material frame;
placing a material frame carrying materials into a vacuum drying chamber;
and controlling each group of microwave generators to be sequentially turned on and turned off according to a preset time sequence, and heating and drying the materials.
The beneficial effects of the invention are as follows:
aiming at the technical problems existing in the prior art, the embodiment of the application provides microwave vacuum drying equipment and a drying method, wherein a plurality of microwave generators are uniformly arranged on the periphery of a drying furnace body, and the microwave generators are divided into groups, so that each group of microwave generators sequentially switch to generate a microwave field which can act on the transformation of each position of a material, the purpose of uniformly heating the material is achieved, and meanwhile, a rotating material frame is replaced, so that the material frame does not need to rotate and can be separated from the drying furnace body, the feeding and discharging operations are conveniently carried out, the feeding efficiency is improved, and the automatic production line for freeze drying can be rapidly applied to the existing automatic production line; the material rack divides the materials into multiple layers in the three-dimensional space, so that the space utilization rate and the processing capacity of the equipment are greatly improved, the productivity of the equipment is further improved, the occupied area of the equipment is reduced, and the construction cost of a factory building is further saved; and by improving the space utilization rate of the equipment, the electric power cost required in the running process of the equipment can be effectively reduced; meanwhile, the microwave generator is arranged on the outer surface of the drying furnace body, so that the installation and replacement of the microwave generator can be directly carried out from the outer surface of the drying furnace body, and the maintenance and replacement of the microwave vacuum drying equipment are facilitated.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the drawings.
Fig. 1 shows a schematic diagram of the overall structure of a microwave vacuum drying apparatus according to an embodiment of the present invention.
Fig. 2 is a front view showing an internal structure of a microwave vacuum drying apparatus according to an embodiment of the present invention.
Fig. 3 is a side view showing an internal structure of a microwave vacuum drying apparatus according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Microwave heating is a heating mode which utilizes an object to absorb microwave energy and convert the microwave energy into heat energy, so that the whole object is heated at the same time, the penetrating power of the microwave is strong, and the heated object is heated by the high-frequency repetitive motion of dipole molecules in the heated object to generate internal friction heat, so that the temperature of the heated object is raised, and according to the characteristic of the microwave, microwave vacuum drying equipment is widely used at present for drying. The microwave generation direction of the existing microwave drying equipment is fixed, a central shaft and a material rack positioned on the central shaft are arranged in a drying chamber, the material rack is driven to do uniform circular motion through the rotation of the central shaft, the relatively fixed central shaft and a driving motor exist in the structure, and the material rack cannot be detached, so that the defects of low feeding efficiency, high automatic production difficulty and low space utilization rate exist.
In view of the defects in the prior art, the invention provides a microwave vacuum drying device, which is shown in combination with figures 1-3, and comprises a drying furnace body 1, a microwave generator 2 and a material rack 3. The drying furnace body 1 comprises an inner cavity 10, wherein the inner cavity 10 is a vacuum drying chamber, and a vacuum environment is provided for material drying work. The material frame 3 detachably hangs in the vacuum drying chamber, and material frame 3 is used for bearing the material 100 of waiting to dry, makes the material evenly spread, can improve the homogeneity that the material heated, can dismantle simultaneously, conveniently goes up the unloading to improve drying efficiency.
In one embodiment, as shown in fig. 1, the drying oven 1 is a cylinder and is placed horizontally. Be provided with a plurality of microwave generator 2 on the drying furnace body 1, a plurality of microwave generator 2 encircle the lateral wall setting of drying furnace body 1, and be the matrix structure evenly arrange in the week side of drying furnace body 1 for microwave generator 2's transmitting terminal can evenly cover the different positions of work or material rest 3, can guarantee the homogeneity to the material heating. The axis of the microwave generator 2 is perpendicular to the axis of the drying furnace body 1, the transmitting end of the microwave generator 2 is positioned in the vacuum drying chamber 10, and the plurality of microwave generators 2 are sequentially opened and closed, so that the materials to be dried on the material frame 3 can be uniformly heated, and the drying purpose is achieved. In other embodiments, the drying oven 1 may have a rectangular parallelepiped shape, and the present invention is not limited thereto.
In one embodiment, the microwave generator 2 arranged on the peripheral side of the drying furnace body 1 is started to dry the material, and as the microwave generator 2 is uniformly distributed on the peripheral side of the drying furnace body 1, the generated microwave field can act on each part of the material, the material rack 3 can achieve the purpose of uniform heating without rotating, and the material rack 3 can be detached, so that the material is conveniently fed, and the feeding efficiency is improved, and the drying efficiency is improved. However, all the microwave generators 2 are simultaneously turned on with too high power, so that the drying quality of the materials is inconvenient to control, the materials are extremely easy to scorch and bake, the operation difficulty is high, and the requirements on operators are too high.
Further, in a preferred embodiment, the microwave generators 2 disposed at the peripheral side of the drying furnace body 1 are arranged in groups, and are uniformly divided into N groups (N is greater than or equal to 1), the microwave generators 2 in the same group can be simultaneously turned on and off, the N groups of microwave generators 2 can be independently controlled to be turned on and off, and the control system controls the microwave generators 2 in each group to sequentially switch, so that a transformed microwave field is generated, and the purpose of uniformly heating the materials is achieved. The material frame 3 does not need to rotate, only needs to be suspended in the vacuum drying chamber 10, and the microwave generators 2 are sequentially switched on and off through the groups of microwave generators 2, so that the microwave generators 2 act on all parts of the material, the purpose of uniform heating is achieved, the material frame 3 is detachable, the feeding is convenient, and the feeding efficiency is improved, and the drying efficiency is improved.
In this embodiment, each row of microwave generators 2 on the side wall of the drying oven 1 is a group, which includes 10 groups of microwave generators. The microwave generators 2 in each group are uniformly arranged along the axial direction of the drying furnace body 1, and the microwave generators 2 in each group can be simultaneously turned on and off and simultaneously act on the materials 100 to be dried. Of course, it is also possible to divide the microwave generators 2 into a group of every two columns, and this embodiment is not limited thereto, and those skilled in the art can design the microwave generators according to practical situations. Alternatively, in other embodiments, the microwave generators 2 circumferentially distributed on a periphery of the side wall of the drying furnace 1 may be divided into a group, or the microwave generators 2 may be uniformly grouped according to the number of the microwave generators 2, which is not particularly limited in the scope of the present invention, and those skilled in the art may group the microwave generators 2 according to actual needs, so as to achieve a better drying effect.
In one embodiment, the side wall of the drying oven body 1 comprises a plurality of mounting holes communicated with the vacuum drying chamber 10, a plurality of microwave generators 2 are mounted in the respective mounting holes, and the emitting ends of the microwave generators 2 pass through the mounting holes to act on the materials to be dried 100 on the material rack 3. The microwave generator 2 is assembled with the mounting holes in a sealing way, so that the influence on the drying efficiency caused by the fact that the external air enters into and damages the vacuum environment of the vacuum drying chamber 10 is avoided.
In one embodiment, the emitting end of the microwave generator 2 includes a sealing window 4, and the sealing window 4 is used to ensure a drying environment in the vacuum drying chamber 10, thereby ensuring drying quality. The sealing window 4 is made of polytetrafluoroethylene, so that the tightness of the vacuum drying chamber 10 can be ensured, the microwave generation cannot be influenced, and the drying quality and the drying efficiency are ensured.
The microwave generator 2 at least comprises a waveguide tube penetrating through the drying furnace body 1 and extending into the vacuum drying chamber 10 along the radial direction of the drying furnace body 1, and the transmitting end of the microwave generator 2 is positioned at the end of the waveguide tube, and the waveguide tube is used for feeding microwaves into the vacuum drying chamber 10 to heat the materials to be dried by the microwaves.
In one embodiment, as shown in fig. 3, the material rack 3 includes a connection portion 31 for being combined and fixed with the drying oven 1, and at least one layer of carrying tray 32 for carrying the dried material 100. In this embodiment, the carrying tray 32 has a multi-layer structure, specifically eight layers, each layer of carrying tray 32 can be tiled to place a plurality of materials to be dried, so as to ensure the uniformity of heating the materials, the multi-layer carrying tray 32 divides the materials into multiple layers in a three-dimensional space, so that the space utilization rate and the processing capacity of the equipment are greatly improved, the productivity of the equipment is further improved, the occupied area of the equipment is reduced, and the construction cost of a factory building is saved; and by improving the space utilization rate of the equipment, the electric power cost required in the running process of the equipment can be effectively reduced.
In a specific embodiment, the top wall of the vacuum drying chamber 10 includes a mounting chute (not shown) corresponding to the connection portion 31, the mounting chute extends along the axis direction of the drying furnace body 1, the connection portion 31 can be inserted into the mounting chute and mounted in place, so that the vacuum drying chamber is convenient to detach and replace, and compared with the traditional material rack 3, the vacuum drying chamber is more convenient to load and unload, has high loading efficiency, does not need to rotate, and has no risk of material falling. In other embodiments, the material rack 3 may also be directly screwed and fixed in the vacuum drying chamber 10 through the connecting portion 31, and the specific installation mode of the material rack 3 suspended in the vacuum drying chamber 10 is not specifically limited, and those skilled in the art may design according to practical situations.
In one embodiment, the end (the left end in fig. 1) of the drying oven body 1 includes a material inlet communicated with the vacuum drying chamber 10, and the material rack 3 can be detached from the material inlet for loading and unloading operations. The material inlet is provided with a furnace door 5 in a sealing way, the furnace door 5 is used for sealing the vacuum drying chamber 10 after loading and unloading, the sealing environment in the vacuum drying chamber 10 is ensured, and the connection mode of the furnace door 5 and the drying furnace body 1 comprises but is not limited to hinging or screwing.
In one embodiment, the oven door 5 comprises an observation window 6, and the observation window 6 can facilitate the staff to observe the working condition inside the vacuum drying chamber 10 during the working process of the microwave vacuum drying equipment, thereby facilitating the observation and control of the working process.
In one embodiment, the drying oven 1 includes a vacuum pumping hole 7 in communication with the vacuum drying chamber 10, the vacuum pumping hole 7 is connected to a vacuum pump (not shown) through a vacuum pipe (not shown), and when the heating and drying of the material are completed, the vacuum pump is used to exhaust the ambient gas in the vacuum drying chamber, so that the air pressure of the vacuum drying chamber is consistent with the air pressure of the outside. And opening the furnace door 5, taking out the material frame 3, and taking out the dried material.
Another embodiment of the present invention provides a drying method for drying a material using the above-mentioned microwave vacuum drying apparatus, the method comprising:
s10, opening a furnace door, taking out the material frame 3, and uniformly and horizontally laying the material to be dried on the material frame;
s20, suspending the material frame 3 after feeding in a vacuum drying chamber 10, and closing a furnace door 5;
s30, controlling each group of microwave generators 2 to install preset time sequence sequential change-over switches, generating a converted microwave field, and heating and drying materials.
According to the microwave vacuum drying equipment and the drying method provided by the embodiment of the invention, the plurality of microwave generators are uniformly arranged on the periphery of the drying furnace body 1, and the microwave generators are divided into groups, so that each group of microwave generators is sequentially switched to generate a microwave field which can act on the transformation of each position of a material, the purpose of uniformly heating the material is achieved, and meanwhile, a rotating material rack is replaced, so that the material rack does not need to rotate and can be separated from the drying furnace body, the feeding and discharging operation is convenient, the feeding efficiency is improved, and the microwave vacuum drying equipment can be quickly applied to the existing automatic production line for freeze drying; the material rack divides the materials into multiple layers in the three-dimensional space, so that the space utilization rate and the processing capacity of the equipment are greatly improved, the productivity of the equipment is further improved, the occupied area of the equipment is reduced, and the construction cost of a factory building is further saved; and by improving the space utilization rate of the equipment, the electric power cost required in the running process of the equipment can be effectively reduced; meanwhile, the microwave generator is arranged on the outer surface of the drying furnace body, so that the installation and replacement of the microwave generator can be directly carried out from the outer surface of the drying furnace body, and the maintenance and replacement of the microwave vacuum drying equipment are facilitated.
It should be understood that the foregoing examples of the present invention are provided merely for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims (10)

1. A microwave vacuum drying apparatus, comprising:
the inner cavity of the drying furnace body is a vacuum drying chamber;
the microwave generators are arranged around the side wall of the drying furnace body and are uniformly distributed on the periphery of the drying furnace body in a matrix structure; and
the material rack is detachably suspended in the vacuum drying chamber and is used for bearing materials;
the axis of the microwave generator is perpendicular to the axis of the drying furnace body, the transmitting end of the microwave generator is positioned in the vacuum drying chamber, a plurality of microwave generators are arranged in groups, and each group of microwave generators are sequentially started to heat materials.
2. The microwave vacuum drying apparatus according to claim 1, wherein a side wall of the drying oven body includes a plurality of mounting holes communicating with the vacuum drying chamber;
the microwave generators are respectively combined and fixed in the mounting holes, and the transmitting ends of the microwave generators penetrate through the mounting holes to act on the materials on the material rack.
3. The microwave vacuum drying apparatus of claim 1, wherein the emitting end of the microwave generator comprises a sealed window.
4. The microwave vacuum drying apparatus according to claim 1, wherein the material rack includes a connection portion to be combined and fixed with the drying oven body and a plurality of layers of carrying trays for carrying the dried material.
5. The microwave vacuum drying apparatus according to claim 4, wherein the vacuum drying chamber includes a mounting chute correspondingly fitted with the connection portion, and the connection portion is movably inserted into the mounting chute.
6. The microwave vacuum drying apparatus according to claim 1, wherein an end of the drying oven body includes a material inlet communicating with the vacuum drying chamber, and a furnace door is provided at the material inlet in a sealing manner.
7. The microwave vacuum drying apparatus of claim 6, wherein the oven door comprises a viewing window.
8. The microwave vacuum drying apparatus according to claim 1, wherein the drying oven body includes a vacuum pumping hole communicating with the vacuum drying chamber, the vacuum pumping hole being connected to a vacuum pump through a vacuum pipe.
9. A microwave vacuum drying apparatus according to claim 1, wherein each set of microwave generators is individually controllable to be turned on and off.
10. A drying method for drying a material using a microwave vacuum drying apparatus according to any one of claims 1 to 9, the method comprising:
uniformly and horizontally laying the materials on the material frame;
placing a material frame carrying materials into a vacuum drying chamber;
and controlling each group of microwave generators to be sequentially turned on and turned off according to a preset time sequence, and heating and drying the materials.
CN202310315099.3A 2023-03-28 2023-03-28 Microwave vacuum drying equipment and drying method Pending CN116294460A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310315099.3A CN116294460A (en) 2023-03-28 2023-03-28 Microwave vacuum drying equipment and drying method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310315099.3A CN116294460A (en) 2023-03-28 2023-03-28 Microwave vacuum drying equipment and drying method

Publications (1)

Publication Number Publication Date
CN116294460A true CN116294460A (en) 2023-06-23

Family

ID=86801224

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310315099.3A Pending CN116294460A (en) 2023-03-28 2023-03-28 Microwave vacuum drying equipment and drying method

Country Status (1)

Country Link
CN (1) CN116294460A (en)

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