CN112361741A - Microwave high-temperature oven - Google Patents
Microwave high-temperature oven Download PDFInfo
- Publication number
- CN112361741A CN112361741A CN202011421477.9A CN202011421477A CN112361741A CN 112361741 A CN112361741 A CN 112361741A CN 202011421477 A CN202011421477 A CN 202011421477A CN 112361741 A CN112361741 A CN 112361741A
- Authority
- CN
- China
- Prior art keywords
- microwave
- hearth
- supporting plate
- materials
- excitation cavity
- 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
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
Abstract
The invention relates to the technical field of reaction equipment, in particular to a microwave high-temperature furnace which comprises a bracket, a microwave source, a microwave excitation cavity, a shell, a furnace cover, a heat insulation layer, a hearth, a supporting plate and a discharge hopper. The furnace cover is a feed inlet, and materials can enter the hearth by opening the furnace cover; the microwave excitation cavity is composed of a shell and a heat insulation layer, the hearth is located in the center of the microwave excitation cavity and is a separated hearth, and the discharge hopper is located below the supporting plate. The principle of the invention is as follows: the materials are separated in the microwave field intensity by the separating hearth through the wave-transparent material, so that the materials are separated by the separating fence to form a certain gap, the microwave can penetrate deeper, the materials can generate heat at multiple points in the microwave field intensity, the materials in the hearth can be heated rapidly, and the utilization rate of the microwave energy is improved.
Description
Technical Field
The invention belongs to the field of microwave energy application devices, and provides a microwave high-temperature oven.
Background
The microwave is an electromagnetic wave with the wavelength of 1mm-103mm, can generate a high-frequency electromagnetic field, has the frequency range of about 300MHz-300GHz, and has extremely strong penetrability. Under the action of microwave radiation and the action of a magnetic field, polar molecule dielectrics in the materials form ordered arrangement along the direction of the electric field, opposite charges are induced on the surfaces of the dielectrics, and when the direction of an external electric field is changed, polar molecules are also ordered arrangement along with the opposite direction. When a high-frequency alternating electromagnetic field is applied, the direction of the high-frequency alternating electromagnetic field is changed for billions of times per second, and the molecules in the material are rearranged along with the direction of the constantly changing electric field, so that the resistance of the original thermal motion of the molecules and the interaction between the molecules must be overcome, the violent motion and collision of the molecules are caused, and the effect similar to friction is generated, so that the electromagnetic energy in the electromagnetic field is converted into heat energy, and the temperature of the medium is greatly improved. Microwave heating causes a heat source to exist inside the material, which is quite different from the traditional heating and drying process.
Microwave energy has gained attention as a clean, contamination-free technique for the treatment of materials. The application of microwave technology in material treatment is limited due to the problems of high energy consumption, low conversion rate, limited treatment capacity and the like of the existing microwave oven.
The conventional microwave oven has problems that exist at present:
1. the microwave hearth has small volume and low processing capacity;
2. the hearth is single, so that the microwave penetration capacity is low, and the application capacity of the microwave is reduced;
3. the manual degree is high, wastes time and energy.
Disclosure of Invention
The invention aims to solve the technical problems of the microwave high-temperature oven in the prior art, and provides the microwave high-temperature oven.
In order to achieve the purpose, the invention adopts the following technical scheme:
the microwave high-temperature furnace consists of a bracket, a microwave source, a shell, a furnace cover, a heat-insulating layer, a hearth, a microwave excitation cavity, a supporting plate and a discharge hopper. The furnace cover is a feed inlet, and materials can enter the hearth by opening the furnace cover; the microwave excitation cavity is composed of a shell and a heat insulation layer, the hearth is located in the center of the microwave excitation cavity and is a separated hearth, and the discharge hopper is located below the supporting plate.
Furthermore, the bracket is made of carbon steel materials and plays a role in supporting the microwave high-temperature furnace.
Furthermore, the microwave source is hung on the outer wall of the shell, the microwave source is a single microwave source or a plurality of microwave sources which form the microwave high-temperature oven, and the frequency of the single microwave source is 915MHz or 2450 MHz.
Furthermore, the heat-insulating layer is made of a non-wave-absorbing heat-insulating material.
Furthermore, the shell is made of metal materials to form a closed space, so that the whole microwave high-temperature oven is prevented from wave leakage.
Furthermore, the microwave excitation cavity is formed by a shell and an insulating layer.
Further, the hearth is located in the center of the microwave excitation cavity.
Further, the hearth is a separated hearth, and the separated hearth has no top and no bottom.
Furthermore, the separated hearth is made of a wave-transmitting material and is made of one of quartz glass, corundum mullite, polytetrafluoroethylene, zirconia, silicon nitride and boron nitride.
Furthermore, the thickness of the partition fence for separating the hearth is more than 5mm, so that microwaves can enter deeper inside through the partition fence to be heated, the substances in the hearth can be heated at multiple points, the penetration efficiency of the microwaves is improved, and the utilization rate of microwave energy is improved.
Furthermore, the separated hearth is not limited to be circular or square, and a plurality of hearths can be arranged on the separated hearth and connected in parallel, so that the processing capacity of the microwave high-temperature oven is improved.
Furthermore, the supporting plate is made of a wave-transmitting material, and the wave-transmitting material is made of one of quartz glass, corundum mullite, polytetrafluoroethylene, zirconia, silicon nitride and boron nitride.
Furthermore, the supporting plate is controlled by an electric control system, and the supporting plate does not need to be moved manually.
Furthermore, the discharge hopper is positioned below the supporting plate, and residual substances in the hearth enter the discharge hopper to be discharged in a centralized manner after the supporting plate is opened.
The use principle of the invention is as follows: the materials are separated in the microwave field intensity by separating the hearth, so that the materials are separated by the separation fence to form a certain gap, the microwave can penetrate deeper, the materials can generate heat at multiple points in the microwave field intensity, the materials in the hearth are heated rapidly, and the utilization rate of the microwave energy is improved.
The invention has the following advantages:
1, a uniquely designed separation hearth is adopted, the problem of poor microwave penetrability is solved, microwaves can penetrate into the hearth through a separation fence, the materials in the hearth can be heated at multiple points, the temperature of the materials in the hearth can be rapidly raised, the microwave penetrability is improved, and the utilization rate of microwave energy is improved;
2, the degree of automation is high, automatic feeding and discharging can be achieved through an electric control system, the upper end is used for feeding and the lower end is used for discharging, the lower end adopts a supporting plate as the bottom of the hearth, after high-temperature heating is completed, the supporting plate is drawn out, so that residues after high temperature directly fall into a discharging hopper for discharging, and the discharging hopper is pushed out by a push plate;
3 the separated hearths can be connected in parallel, so that the processing capacity of the microwave high-temperature oven is improved, and the problem of low processing capacity of the existing microwave high-temperature oven is solved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic front view of the present invention.
In the figure: the microwave oven comprises a microwave source 1, a microwave excitation cavity 2, a shell 3, an oven cover 4, a heat insulation layer 5, a hearth 6, a supporting plate 7, a discharge hopper 8 and a bracket 9.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments. In the preferred embodiments, the terms "upper", "lower", "left", "right", "middle" and "a" are used for clarity of description only, and are not used to limit the scope of the invention, and the relative relationship between the terms and the terms is not changed or modified substantially without changing the technical content of the invention.
According to an embodiment of the present invention, there is provided a microwave high-temperature oven.
The microwave high-temperature oven consists of a bracket, a microwave source, a microwave excitation cavity, a shell, an oven cover, a heat-insulating layer, a hearth, a supporting plate and a discharge hopper. The furnace cover is a feed inlet, and materials can enter the hearth by opening the furnace cover; the microwave excitation cavity is composed of a shell and a heat insulation layer, the hearth is located in the center of the microwave excitation cavity and is a separated hearth, and the discharge hopper is located below the supporting plate.
In one embodiment, the bracket is made of carbon steel material and plays a role of supporting the microwave high-temperature oven.
In one embodiment, the microwave source is hung on the outer wall of the shell, the microwave source is composed of one or more microwave sources which form a microwave high-temperature oven, and the frequency of the single microwave source is 915MHz or 2450 MHz.
In one embodiment, the heat-insulating layer is made of a non-wave-absorbing heat-insulating material.
In one embodiment, the enclosure is made of metal material to form a closed space, so that the whole microwave high-temperature oven is prevented from wave leakage.
In one embodiment, the microwave excitation cavity is formed by a shell and an insulating layer.
In one embodiment, the furnace chamber is located in the center of the microwave excitation cavity.
In one embodiment, the furnace is a divided furnace, the divided furnace being without a top and a bottom.
In one embodiment, the separated hearth is made of a wave-transparent material, and is made of one of quartz glass, corundum mullite, polytetrafluoroethylene, zirconia, silicon nitride and boron nitride.
In one embodiment, the thickness of the partition fence for partitioning the hearth is more than 5mm, so that microwaves can enter deeper interior through the partition fence to be heated, substances in the hearth can be heated at multiple points, the penetration efficiency of the microwaves is improved, and the utilization rate of microwave energy is improved.
In one embodiment, the divided hearth is not limited to be circular or square, and a plurality of hearths can be arranged in the divided hearth and connected in parallel, so that the processing capacity of the microwave high-temperature oven is improved.
In one embodiment, the supporting plate is made of a wave-transmitting material, and the wave-transmitting material is one of quartz glass, corundum mullite, polytetrafluoroethylene, zirconia, silicon nitride and boron nitride.
In one embodiment, the pallets are controlled by an electronic control system, without manual movement of the pallets.
In one embodiment, the discharge hopper is positioned below the supporting plate, and residual substances in the hearth enter the discharge hopper to be discharged in a centralized manner after the supporting plate is opened.
The use principle of the invention is as follows: the materials are separated in the microwave field intensity by separating the hearth, so that the materials are separated by the separation fence to form a certain gap, the microwave can penetrate deeper, the materials can generate heat at multiple points in the microwave field intensity, the materials in the hearth are heated rapidly, and the utilization rate of the microwave energy is improved.
In conclusion, the invention provides a microwave high-temperature furnace, and innovatively provides a scheme for separating a hearth to solve the problems of insufficient microwave penetration capacity, low processing capacity and high automation degree.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples and that many variations or modifications may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims.
Claims (7)
1. The microwave high-temperature furnace is characterized by comprising a bracket, a microwave source, a shell, a furnace cover, a heat preservation layer, a hearth, a microwave excitation cavity, a supporting plate and a discharge hopper, wherein the furnace cover is a feed inlet, and materials can enter the hearth by opening the furnace cover; the microwave excitation cavity is composed of a shell and a heat insulation layer, the hearth is located in the center of the microwave excitation cavity and is a separated hearth, and the discharge hopper is located below the supporting plate.
2. A microwave high-temperature oven according to claim 1, characterized in that the hearth is a divided hearth, the divided hearth has no hollow top and bottom, the divided hearth is made of wave-transparent material, and the hearth is made of one of quartz glass, corundum-mullite, polytetrafluoroethylene, zirconia, silicon nitride and boron nitride.
3. The microwave high-temperature oven according to claim 2, wherein the thickness of the partition fence for partitioning the oven chamber is more than 5mm, and the microwave can enter deeper inside through the partition fence to perform microwave heating, so that the substance in the oven chamber can generate heat at multiple points, the penetration efficiency of the microwave is improved, and the utilization rate of the microwave energy is improved.
4. A microwave high-temperature oven according to claim 2, characterized in that the divided hearths are not limited to square or round, and the divided hearths can be connected in parallel in multi-stage, improving the processing capacity of the microwave high-temperature oven.
5. The microwave oven according to claim 1, wherein the microwave source is hung on the outer wall of the housing, the microwave source is composed of a plurality of microwave sources, and the frequency of the single microwave source is 915MHz or 2450 MHz.
6. The microwave oven according to claim 1, wherein the casing is made of a metal material to form a closed space, thereby preventing the whole microwave oven from leaking waves.
7. A microwave high-temperature furnace according to claim 1, wherein the supporting plate is made of wave-transparent material, the wave-transparent material is one of quartz glass, corundum mullite, tetrafluoroethylene, zirconia, silicon nitride and boron nitride, and the supporting plate can be controlled by an electric control system, so that the supporting plate can be freely opened without manual opening operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011421477.9A CN112361741A (en) | 2020-12-08 | 2020-12-08 | Microwave high-temperature oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011421477.9A CN112361741A (en) | 2020-12-08 | 2020-12-08 | Microwave high-temperature oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112361741A true CN112361741A (en) | 2021-02-12 |
Family
ID=74535885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011421477.9A Pending CN112361741A (en) | 2020-12-08 | 2020-12-08 | Microwave high-temperature oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112361741A (en) |
-
2020
- 2020-12-08 CN CN202011421477.9A patent/CN112361741A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3845270A (en) | Microwave heating and vapor condensing apparatus | |
| Menezes et al. | Microwave fast sintering of ceramic materials | |
| CN1250477C (en) | Burning furnace, burnt body pnducing method, and hurnt body | |
| JP2002504668A (en) | Method and apparatus for microwave sintering of nuclear fuel | |
| GB2315654A (en) | RF assisted microwave hybrid furnace | |
| CN109133048B (en) | Tower type microwave graphite puffing equipment | |
| CN1307121C (en) | Method for processing ceramics using electromagnetic energy | |
| CN107917614A (en) | A kind of microwave pressure sintering furnace | |
| CN104869679A (en) | Device and method for realizing frequency conversion microwave heating | |
| CN104470022B (en) | A kind of powder microwave heating equipment and using method thereof | |
| CN112361741A (en) | Microwave high-temperature oven | |
| CN103269535B (en) | Microwave material science workstation | |
| CN213778648U (en) | Microwave multi-furnace tube high-temperature furnace | |
| CN218554061U (en) | T-shaped single-mode microwave chemical reaction unit | |
| CN102226644B (en) | High-temperature sintering push plate kiln capable of working continuously | |
| CN201585163U (en) | Microwave high temperature heating furnace | |
| CN112361823A (en) | Microwave multi-furnace tube high-temperature furnace | |
| CN214095488U (en) | Microwave sintering furnace for producing silicon nitride ceramics with uniform heating | |
| WO1993016571A1 (en) | Microwave processing materials | |
| CN210089292U (en) | Microwave drying rotary furnace for powdery materials | |
| CN112122304A (en) | Electric and microwave composite thermal cracking device and method | |
| CN109922555B (en) | Microwave high-flux material processing device with concentric rotating chassis | |
| CN101738075B (en) | Device for removing substance moisture by microwaves | |
| CN218554060U (en) | Multimode microwave chemical reaction unit | |
| CN103194578B (en) | Microwave energy high-temperature atmosphere heat treatment furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |