CN102698681A - Microwave reaction device - Google Patents
Microwave reaction device Download PDFInfo
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- CN102698681A CN102698681A CN2012100566246A CN201210056624A CN102698681A CN 102698681 A CN102698681 A CN 102698681A CN 2012100566246 A CN2012100566246 A CN 2012100566246A CN 201210056624 A CN201210056624 A CN 201210056624A CN 102698681 A CN102698681 A CN 102698681A
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Abstract
The invention provides a microwave reaction device which comprises a reaction container and microwave generators. The microwave generators are arranged on the periphery of the reaction container and encircle around the reaction container. The microwave reaction device can adapt to large-capacity material reaction, and microwave is distributed on materials more evenly, so that the materials can be heated more evenly, and local overheating is prevented. In addition, due to the fact that quantity and location of the microwave generators are reasonably set, and an excellent heating effect can be achieved while the quantity of the generators and the power are minimized.
Description
Technical field
The present invention relates to a kind of chemical plant installations, particularly utilize microwave to realize the reaction unit of heating.
Background technology
Often use heater in the commercial production, traditionally, heating realizes through for example electricity, fuel, conducts heating container through heat, and then is the content heating in the container.This traditional approach must also have the heat radiation of heating back container, the thermal diffusion of fill container outer wall etc. in addition earlier with the container heating, therefore causes the great amount of heat loss.
Microwave can pass insulating materials such as glass, pottery, plastics, but can consumed energy, but microwave can't pass metal, and it runs into metal and just reflects.Based on this, reactant is held in place in the water conservancy diversion container of rustless steel container, through microwave alternation (for example power setting is 2450 ± 25 MHz), then the polarity of the molecule in the heated material also changes thereupon.In variation, molecule will produce a large amount of frictional heats, thereby reach the purpose of heating.In heating process, accomplished the transformation of energy of electromagnetic energy thermotropism.Microwave is instantaneous heat temperature raising to dielectric material, and only has material to absorb microwave with power conversion in the container, does not therefore have thermal loss.
For example; China utility model patent CN 202009509 U promptly disclose a kind of microwave heating equipment; It comprises the reactor of a metal shell, is provided with the material stream passed pipeline that microwave generator and insulating materials are processed in the reactor, and the two ends of material stream passed pipeline pass reactor.In this scheme, material is directly heated by microwave, and microwave acts directly on and promotes molecular motion to produce heat energy on the molecule of material, has improved firing rate greatly and has shortened the reaction time.
Again for example; China utility model patent CN 102258970 A disclose a kind of microwave reaction kettle; It utilizes the microwave energy transmission technology and passes through Bomi sealed knot bundle and combine, in the agitated reactor side additional one have the Bomi envelope be total to more can the microwave working cavity, make its suitable microwave transmission and utilization; Utilize this microwave working cavity to import microwave, inhale the ripple material in the radioreaction still and heat or excite chemical reaction.
Yet existing microwave reaction device many places are in the experiment rank, and power is little, capacity is also little; Therefore quantity and the position arrangement for microwave generator do not have too many requirement; Make that microwave generator is usually located at container top or away from the side of container, when agitated reactor was used for large-scale production, capacity increased greatly; Even reach several hectolitres, when going up kilolitre; Be positioned at the bottom that microwave that the microwave generator at top sends is difficult to arrive container, perhaps more generally, the microwave that is sent arrives the amount of container bottom far below near the amount of radiation the microwave generator; Cause the suffered amount of radiation of material at container bottom, centre, top not wait, cause the material heating inhomogeneous.
Summary of the invention
In view of this, the present invention provides a kind of improved microwave reaction device, and it can adapt to jumbo material reaction, and the more even distribution of microwave on material, thereby the heating-up temperature of material is more even, the phenomenon of hot-spot can not occur.In addition, owing to reasonably disposed the quantity and the position of microwave generator, can when using minimum generator, minimum power, reach excellent heats.
A kind of microwave reaction device provided by the invention, it comprises reaction vessel and microwave generator, it is peripheral that wherein said microwave generator is arranged on said reaction vessel, and be provided with around said reaction vessel one circle.
In an embodiment of the invention, said microwave generator is provided with around a circle at said reaction vessel middle part.
In an embodiment of the invention, the power of each of said microwave generator is 2KW to 3KW, for example 2KW, 2.5KW or 3KW.Preferably, each of said microwave reactor all has identical power.
In an embodiment of the invention, said microwave generator is 4 to 10, and preferably, said microwave generator is 6 to 8, for example 8.
In an embodiment of the invention, the volume of said reaction vessel is 10L to 1000L, is preferably 200L to 800L, for example 500L.
In an embodiment of the invention, said reaction vessel is through can passing through the material of microwave, and for example plastics are processed.
Microwave reaction device provided by the invention; It is provided with the circle of a plurality of microwave generators around the reaction vessel outside; Preferably be arranged on the position near the middle part of reaction vessel, make the top of microwave arrival container and the amount of bottom trend towards equalization, thereby the more even distribution on material; The phenomenon of hot-spot can not appear in the heating-up temperature of material thereby more even.In addition, microwave generator is arranged on the outside of reaction vessel, the installation and removal of more convenient microwave generator, and in prior art, use lateral guide to go into the technology of microwave, structure is simple more and efficient is higher.
Description of drawings
Fig. 1 is the structural representation of the microwave reaction device of one embodiment of the present of invention.
Fig. 2 is the cross-sectional view of the microwave reaction device of Fig. 1 along the A-A line.
The specific embodiment
Describe the specific embodiment of the present invention in detail below with reference to accompanying drawing.Should be understood that these accompanying drawings and detailed description only are the detailed as far as possible exemplary elaborations to the principle of the invention, are not construed as limiting the scope of the present invention.In the present invention, the figure number at place when this Reference numeral of the leftmost numeral of Reference numeral occurs for the first time, and similar characteristic is represented with similar Reference numeral.
With reference to figure 1, it has shown the structural representation of the microwave reaction device in one embodiment of the present of invention.In this example, this microwave reaction device is a microwave reaction kettle 100, and it comprises reaction vessel 102 and the microwave generator 104 that is arranged on reaction vessel 102 outer surfaces.The height of microwave generator 104 is in the middle part of reaction vessel 102 approximately.Certainly, according to the capacity of reaction vessel 102 internal reaction things, also can microwave generator 104 be arranged on different height.
Referring to Fig. 2, it has shown the cutaway view of microwave reaction kettle 100 of the present invention along the A-A direction.As shown in the figure, this microwave reaction kettle 100 is equipped with 8 microwave generators 104 in its outer periphery, and each microwave generator has identical power, and for example each all is 2KW.
In microwave reaction kettle illustrated in figures 1 and 2; Microwave generator is arranged on the position near the middle part of agitated reactor; Thereby arrive the top of agitated reactor and the microwave amount of bottom trends towards equalization; The more even distribution of microwave on material makes that the heating-up temperature of material is more even, the phenomenon of hot-spot can not occur.Particularly when the capacity of agitated reactor when 500L is above, the height of agitated reactor is up to 1.5 to 2 meters, the effect of the even heating that bring the position of arranging of microwave generator of the present invention can be more obvious.
Should be understood that; The above specific embodiment only is the indicative elaboration to the principle of the invention; Those skilled in the art can carry out suitable modification to apparatus and method provided by the invention after reading, will be understood that these and revise also within the scope of the invention.
Claims (10)
1. microwave reaction device, it comprises reaction vessel and microwave generator, it is characterized in that, it is peripheral that said microwave generator is arranged on said reaction vessel, and be provided with around said reaction vessel one circle.
2. microwave reaction device according to claim 1 is characterized in that, said microwave generator is provided with around a circle at said reaction vessel middle part.
3. microwave reaction device according to claim 1 is characterized in that each of said microwave reactor all has identical power.
4. microwave reaction device according to claim 3 is characterized in that, the power of said microwave generator is 2KW to 3KW.
5. microwave reaction device according to claim 1 is characterized in that, said microwave generator is 4 to 10.
6. microwave reaction device according to claim 5 is characterized in that, said microwave generator is 6 to 8.
7. microwave reaction device according to claim 1 is characterized in that, the volume of said reaction vessel is 10L to 1000L.
8. microwave reaction device according to claim 7 is characterized in that, the volume of said reaction vessel is 200L to 800L.
9. microwave reaction device according to claim 1 is characterized in that, said reaction vessel is to be processed by the material that can pass through microwave.
10. microwave reaction device according to claim 9 is characterized in that, the material of said microwave is plastics.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2012100566246A CN102698681A (en) | 2012-03-06 | 2012-03-06 | Microwave reaction device |
Applications Claiming Priority (1)
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CN2012100566246A CN102698681A (en) | 2012-03-06 | 2012-03-06 | Microwave reaction device |
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CN102698681A true CN102698681A (en) | 2012-10-03 |
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CN2012100566246A Pending CN102698681A (en) | 2012-03-06 | 2012-03-06 | Microwave reaction device |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1266739A (en) * | 1999-03-10 | 2000-09-20 | 中国科学院金属研究所 | Microwave chemical reactor |
WO2004101474A1 (en) * | 2003-05-08 | 2004-11-25 | Belle Watkins Mines, Inc. | Method for the production of hydrogen gas and electricity from carbon |
CN102305541A (en) * | 2011-08-19 | 2012-01-04 | 长沙隆泰微波热工有限公司 | Sintering furnace formed by combining microwaves and heat source |
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2012
- 2012-03-06 CN CN2012100566246A patent/CN102698681A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1266739A (en) * | 1999-03-10 | 2000-09-20 | 中国科学院金属研究所 | Microwave chemical reactor |
WO2004101474A1 (en) * | 2003-05-08 | 2004-11-25 | Belle Watkins Mines, Inc. | Method for the production of hydrogen gas and electricity from carbon |
CN102305541A (en) * | 2011-08-19 | 2012-01-04 | 长沙隆泰微波热工有限公司 | Sintering furnace formed by combining microwaves and heat source |
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Application publication date: 20121003 |