CN201585163U - Microwave high temperature heating furnace - Google Patents
Microwave high temperature heating furnace Download PDFInfo
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- CN201585163U CN201585163U CN2009203526013U CN200920352601U CN201585163U CN 201585163 U CN201585163 U CN 201585163U CN 2009203526013 U CN2009203526013 U CN 2009203526013U CN 200920352601 U CN200920352601 U CN 200920352601U CN 201585163 U CN201585163 U CN 201585163U
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Abstract
The utility model belongs to the field of high temperature heating equipment and relates to a kiln suitable for adopting microwave energies to quickly heat materials at high temperature. The technical scheme is as follows: the microwave high temperature heating furnace includes an electric control unit, a power unit, a heating box body, an insulating layer inside the box body, a heating furnace cavity, a microwave source and a door body; the heating box body is a resonant cavity which is processed and sealed by adopting metal plates; the insulating layer is a porous ceramic fiber insulating cotton with low microwave dielectric constant, low loss characteristics and low density. The microwave high temperature heating furnace greatly improves the insulating effects through improving the insulating structure according to the dielectric heating characteristics of microwaves, and raises the temperature rapidly; meanwhile, the microwave high temperature heating furnace improves the heating uniformity through feeding in a plurality of microwave sources and combining a microwave mode stirrer.
Description
Technical field
The utility model relates to the heat apparatus field, specifically, relates to a kind of kiln that adopts microwave energy material to be carried out the quick high-temp heating that is applicable to.
Background technology
At present in laboratories, field such as industry, scientific research, teaching, at pottery, metallic compound, nonmetallic compound and organic heat multiselect traditional heating mode, as adopt resistance-type heating furnace or combustion heating furnace to heat, the shortcoming of traditional heating mode maximum is material because positive from outside to inside temperature gradient heating, furnace temperature (internal atmosphere temperature) must be greater than being heated the material desired temperature, finish by heat conduction slowly, thereby heating process is tediously long, and it is totally unfavorable to obtain test data for the laboratory.The microwave high-temperature heating furnace is as emerging in recent years heating technique, the characteristics that rely on the micro-wave dielectric heating, inside and outside under the material reasonable volume condition, heat simultaneously, shortened the heat conduction time in the traditional heating mode greatly, for example microwave oven sintering oxidation zirconium can be finished sintering in 90 minutes, just can finish sintering and the traditional heating method need reach 27 hours.
The microwave high-temperature stove is continued to use American-European with the quasi-instrument thinking more in the market, promptly select for use metallic plate to make the rectangle microwave resonant cavity usually, built-in ceramic fiber thermal insulation plate (warming plate is divided into several detachable structures) forms the heat space by ceramic warming plate.And there is following defective in this class formation:
1, heat insulation effect is undesirable.The ceramic fibre warming plate is as insulation material, and its heat insulation effect is significantly smaller than same type of material but wherein has the heat-preservation cotton in how loose hole; The bigger density of warming plate with directly influencing the effect that penetrates of microwave, consumes how unnecessary energy simultaneously.
2, heat limited space system.Microwave belongs to the medium heating, because of common microwave almost can be ignored for the heating of air, therefore for microwave high-temperature firing equipment on the market, if it is excessive to add thermal material, then can't put into furnace chamber, if it is too small to add thermal material, then surrounding air can have considerable influence to material in the furnace chamber, causes the material programming rate to descend greatly.
3, lack of homogeneity.Market microwave high-temperature firing equipment belongs to single microwave source heating more, and material is generally inactive state, therefore material is difficult to form the frequency pulling to microwave, thereby forming dynamic multimode distributes, make the microwave heating uniformity descend, be embodied in the notable difference that has high temperature dot and low warm spot on the material.
4, scope of application limitation.Market microwave high-temperature firing equipment is big multi-functional fixing, can not carry more test and Observations Means as a platform, thereby limit to user's operation.
Summary of the invention
The purpose of this utility model provides a kind of microwave high-temperature heating furnace, and it is not obvious to solve available technology adopting ceramic fibre warming plate heat insulation effect, problems such as single microwave source heating uniformity difference.
For reaching above-mentioned technical purpose, the utility model is achieved by the following technical solutions:
A kind of microwave high-temperature heating furnace comprises ECU (Electrical Control Unit), power subsystem, the heating casing, the heat-insulation layer in the casing, heating furnace chamber, microwave source and door body, the resonant cavity of described heating casing for adopting metallic plate processing to be sealed to form, it is characterized in that: described heat-insulation layer is the ceramic fibre heat-preservation cotton.
Further, the utility model also has following technical characterictic: described microwave source is a magnetron, is distributed in the place in each panel of described heating casing at least.
Further, the utility model also has following technical characterictic: between described heating casing and the described heat-insulation layer microwave mode blender is set, described blender passes through the ceramic shaft transmission by stirring motor.
Further, the utility model also has following technical characterictic: described heating furnace chamber is positioned at described heat-insulation layer inside, is formed by ceramic beaverboard and the sealing of described door body.
Further, the utility model also has following technical characterictic: described door body adopts the universal door of cantilever, and central authorities are the trapezoidal ceramic fibre sealing surface of evagination, and described sealing surface is provided with microwave leakproof spring and gas seal.
Further, the utility model also has following technical characterictic: the face of being sealed and matched of described ceramic beaverboard and described door body is the indent inclined-plane.
Further, the utility model also has following technical characterictic: described door body is provided with Sealed sandwich, described interlayer inner filling coolant.
Further, the utility model also has following technical characterictic: each panel of described heating casing all can be provided with air inlet, gas outlet, insertion-type thermocouple temperature-measuring port, infrared measurement of temperature mouth, optics temperature-measuring port.
Further, the utility model also has following technical characterictic: described heating cabinet body is positioned at the top of described high-temperature heater, and described ECU (Electrical Control Unit) is positioned at the middle part of described high-temperature heater, and described power subsystem is positioned at the bottom of described high-temperature heater.
Further, the utility model also has following technical characterictic: described heat-insulation layer is low microwave dielectric constant, low loss characteristic and low density porous ceramic fibre heat-preservation cotton.
Compared with prior art, advantage of the present utility model and good effect are:
1, the utility model hangs down microwave dielectric constant, low loss characteristic and low-density by adopting, more the ceramic fibre heat-preservation cotton and the high slightly warming plate of density of porosity and looseness constitute insulation construction, have improved heat insulation effect.
2, the heating furnace chamber is last moulding, by the structure of heat-preservation cotton and warming plate, can use needs that the furnace chamber size is set according to the user, forms the flexible heating furnace chamber of heating space.
3,, improved the uniformity of heating greatly by a plurality of microwave source feed-ins and in conjunction with the microwave mode blender.
4, modularized design by at the heating casing infrared measurement of temperature mouth, optics temperature-measuring port or insertion-type thermocouple temperature-measuring port etc. being set, is convenient to append multiple user individual testing requirement, has enlarged the scope of application.
Description of drawings
Fig. 1 is the utility model microwave high-temperature heating furnace main body view;
Fig. 2 is the utility model microwave high-temperature inside heating furnace structural representation;
Fig. 3 is the utility model microwave high-temperature stove heating cabinet body portion cutaway view.
Among the figure, 1, the heating casing; 101, metallic plate; 102, general thermal insulation board; 2, heat-insulation layer; 3, heating furnace chamber; 301, ceramic beaverboard; 4, magnetron; 5, mode stirrer; 6, door body; 601, the trapezoidal ceramic fibre sealing surface of evagination; 602, Sealed sandwich; 7, ECU (Electrical Control Unit); 8, power subsystem; 9, optics temperature-measuring port; 10, air inlet; 11, gas outlet; 12, infrared measurement of temperature mouth; 13, insertion-type thermocouple temperature-measuring port; 14, gas seal; 15, microwave leakproof spring; 16, ceramic beaverboard concave slope; 17, door handle; 18, cantilever.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of microwave high-temperature heating furnace comprises heating casing 1, the heat-insulation layer 2 of heating casing 1 inside, heating furnace chamber 3, microwave source magnetron 4, door body 6, ECU (Electrical Control Unit) 7 and power subsystem 8.Heating casing 1 is positioned at the top of high-temperature heater, be the resonant cavity that adopts metallic plate 101 (being generally corrosion resistant plate) processing to be sealed to form, periphery coats the general thermal insulation board 102 of one deck, and heating casing 1 is a cube in the present embodiment, can certainly be the structure of cylinder or other shapes; Low dielectric property heat-barrier material filling heating casing 1 inner formation heat-insulation layer 2, the low dielectric property heat-barrier material of the utility model adopts the ceramic fibre heat-preservation cotton, low because of its density, have how loose hole, heat insulation effect is much larger than the ceramic fibre warming plate, and microwave penetration is effective; Heat-insulation layer 2 penetralias are to construct the thermal treatment zone of moulding with the high slightly ceramic beaverboard 301 of density, ceramic beaverboard 301 forms the heating furnace chamber 3 that seals with door body 6, heating furnace chamber 3 is cubes in the present embodiment, also can be cylinder or other irregular solid spaces; Door body 6 adopts the universal door of cantilever, be connected on the heating furnace body by cantilever 18, central authorities are the trapezoidal ceramic fibre sealing surface 601 of evagination, the face that ceramic beaverboard 301 matches with the sealing face is the indent inclined-plane, it is ceramic beaverboard concave slope 16, for strengthening the sealing effectiveness of heating furnace chamber 3, sealing face place is provided with microwave leakproof spring 15 and gas seal 14, in addition, also be provided with door handle 17 and optics temperature-measuring port 9 on the door body 6, optics temperature-measuring port 9 is by fixedly quartz glass or Pyrex formation of flange, as the separator in atmosphere space inside and outside the microwave high-temperature stove, simultaneously, be the high temperature of avoiding a body 6 user that burns, at its arranged outside Sealed sandwich 602, recirculated water or other cooling liquids are filled in inside.
The microwave source of the utility model microwave high-temperature heating furnace is a magnetron 4, at least be distributed in the place in each panel that heats casing 1, be generally static because of being heated material, for improving the uniformity of microwave heating, the high temperature dot of avoiding single source to add existing on the thermal material and the notable difference of low warm spot, the utility model magnetron 4 can be provided with as required at top, bottom, each sidewall of heating casing 1; Simultaneously, be aided with the microwave mode blender 5 that between heating casing 1 and heat-insulation layer 2, is provided with, microwave to magnetron 4 feed-ins stirs, make that the uniformity of microwave heating is better, blender 5 passes through the ceramic shaft transmission by stirring motor, its position can be at each panel place of heating casing 1, and quantity can be for a plurality of.
According to actual measurement and use needs, each panel of heating casing 1 all can be provided with air inlet 10, gas outlet 11, insertion-type thermocouple temperature-measuring port 13, infrared measurement of temperature mouth 12, optics temperature-measuring port 9, air inlet 10, venthole 11, insertion-type thermocouple temperature-measuring port 13 and infrared measurement of temperature mouth 12 are spaced apart on heating casing 1 in the present embodiment, and optics temperature-measuring port 9 is arranged on the body 6.
The number of plies of heat-insulation layer 2 can be one or more layers, determines according to user's actual needs.
During work, the power subsystem 8 that is positioned at the heat furnace bottom is connected, a plurality of magnetrons 4 heat furnace chamber 3 by the waveguide mouth with the microwave feed-in, and 5 pairs of microwaves of a plurality of mode stirrers of process stir, to being heated the even Fast Heating of material, entire work process is by ECU (Electrical Control Unit) 7 controls that are positioned at the heating furnace middle part.
Adopt the utility model that pottery, metallic compound, nonmetallic compound and organic substance are carried out heat, insulation material adopts the ceramic fibre heat-preservation cotton, and heat insulation effect substantially exceeds the warming plate of same type of material.Ceramic fibre heat-preservation cotton described in the utility model, be meant have high temperature resistant, the ceramic-like of low microwave dielectric constant and low loss characteristic.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection range of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (10)
1. a microwave high-temperature heating furnace comprises ECU (Electrical Control Unit), power subsystem, the heating casing, the heat-insulation layer in the casing, heating furnace chamber, microwave source and door body, the resonant cavity of described heating casing for adopting metallic plate processing to be sealed to form, it is characterized in that: described heat-insulation layer is the ceramic fibre heat-preservation cotton.
2. microwave high-temperature heating furnace according to claim 1 is characterized in that: described microwave source is a magnetron, is distributed in the place in each panel of described heating casing at least.
3. microwave high-temperature heating furnace according to claim 2 is characterized in that: between described heating casing and the described heat-insulation layer microwave mode blender is set, described blender passes through the ceramic shaft transmission by stirring motor.
4. microwave high-temperature heating furnace according to claim 1 is characterized in that: described heating furnace chamber is positioned at described heat-insulation layer inside, is formed by ceramic beaverboard and the sealing of described door body.
5. microwave high-temperature heating furnace according to claim 4 is characterized in that: described door body adopts the universal door of cantilever, and central authorities are the trapezoidal ceramic fibre sealing surface of evagination, and described sealing surface is provided with microwave leakproof spring and gas seal.
6. microwave high-temperature heating furnace according to claim 5 is characterized in that: the face of being sealed and matched of described ceramic beaverboard and described door body is the indent inclined-plane.
7. microwave high-temperature heating furnace according to claim 6 is characterized in that: described door body is provided with Sealed sandwich, described interlayer inner filling coolant.
8. microwave high-temperature heating furnace according to claim 1 is characterized in that: each panel of described heating casing all can be provided with air inlet, gas outlet, insertion-type thermocouple temperature-measuring port, infrared measurement of temperature mouth, optics temperature-measuring port.
9. microwave high-temperature heating furnace according to claim 1, it is characterized in that: described heating cabinet body is positioned at the top of described high-temperature heater, described ECU (Electrical Control Unit) is positioned at the middle part of described high-temperature heater, and described power subsystem is positioned at the bottom of described high-temperature heater.
10. microwave high-temperature heating furnace according to claim 1 is characterized in that: described heat-insulation layer is low microwave dielectric constant, low loss characteristic and low density porous ceramic fibre heat-preservation cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203526013U CN201585163U (en) | 2009-12-25 | 2009-12-25 | Microwave high temperature heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203526013U CN201585163U (en) | 2009-12-25 | 2009-12-25 | Microwave high temperature heating furnace |
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| Publication Number | Publication Date |
|---|---|
| CN201585163U true CN201585163U (en) | 2010-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009203526013U Expired - Fee Related CN201585163U (en) | 2009-12-25 | 2009-12-25 | Microwave high temperature heating furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427630A (en) * | 2011-12-02 | 2012-04-25 | 湖南阳东微波科技有限公司 | High-temperature industrial furnace |
| CN105228282A (en) * | 2015-10-19 | 2016-01-06 | 昆明理工大学 | A kind ofly react the microwave shaft (tower) furnace of inner bag for heating liquid |
| CN112074031A (en) * | 2020-10-09 | 2020-12-11 | 安徽锐达微波应用科技有限公司 | Microwave high-temperature equipment |
| CN113465394A (en) * | 2021-05-27 | 2021-10-01 | 中国工程物理研究院材料研究所 | Multi-field coupling microwave sintering device and control method thereof |
-
2009
- 2009-12-25 CN CN2009203526013U patent/CN201585163U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427630A (en) * | 2011-12-02 | 2012-04-25 | 湖南阳东微波科技有限公司 | High-temperature industrial furnace |
| CN102427630B (en) * | 2011-12-02 | 2013-08-14 | 湖南阳东微波科技有限公司 | High-temperature industrial furnace |
| CN105228282A (en) * | 2015-10-19 | 2016-01-06 | 昆明理工大学 | A kind ofly react the microwave shaft (tower) furnace of inner bag for heating liquid |
| CN105228282B (en) * | 2015-10-19 | 2017-12-19 | 昆明理工大学 | A kind of microwave shaft (tower) furnace for reacting inner bag and being used for liquid heating |
| CN112074031A (en) * | 2020-10-09 | 2020-12-11 | 安徽锐达微波应用科技有限公司 | Microwave high-temperature equipment |
| CN112074031B (en) * | 2020-10-09 | 2024-05-24 | 安徽锐达微波应用科技有限公司 | Microwave high-temperature equipment |
| CN113465394A (en) * | 2021-05-27 | 2021-10-01 | 中国工程物理研究院材料研究所 | Multi-field coupling microwave sintering device and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20151225 |
|
| EXPY | Termination of patent right or utility model |