Microwave reactor

Abstract

To suppress the local concentration of microwaves inside a housing, and diffuse the microwaves within the housing and efficiently process the object to be processed by diffusing microwaves into the housing in a microwave reaction device that processes an object to be processed placed in the housing by irradiating the object with microwaves.SOLUTION: A casing 2 of a microwave reaction device 1 is composed of a top surface body 3, a circumferential side surface body 4, and a bottom surface body 5. The circumferential side surface body 4 has a plurality of side surface bodies arranged vertically on the bottom surface body 5 such that the side surface bodies do not face each other in parallel to form a polygonal shape in plan view, and microwaves are introduced into the housing 2 from a waveguide 7 connected to at least one side surface body 41 of the side surface bodies. A fan antenna 8 for microwave diffusion is installed on a side surface body 44 at a position not facing the side surface body 41.SELECTED DRAWING: Figure 1

Description

Technical Field

[0005] , , , ,

[0001] The present invention relates to the structure of a vertical microwave reactor that introduces microwaves into a housing in which a processing object is placed and heat-treats the processing object.

Background Art

[0002] As a conventional microwave reactor, both front and rear ends of a cylindrical body with a regular pentagonal cross-section are closed with flanges to form a housing, a reaction tube through which a processing object flows is arranged so as to pass through the axial center of the housing, microwaves are introduced into the housing from a microwave inlet provided on one side surface of the circumferential side surface of the cylindrical body with a regular pentagonal cross-section, and microwaves are propagated along the inner circumferential surface of the cylindrical body, so that the processing object in the reaction tube is irradiated with microwaves (see, for example, Patent Document 1).

[0003] Also, in a microwave reactor in which a tubular ceramic container through which gas flows is arranged so as to penetrate both upper and lower ends of a chamber, and a waveguide for introducing microwaves toward the ceramic container is provided on a side surface of the chamber, a configuration in which a fan antenna for diffusing microwaves is installed in proximity to the front surface of the waveguide is known (see, for example, Patent Document 2).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the former of the aforementioned prior art, the microwaves introduced into the housing propagate by rotating along the inner surface of the cylinder, making it difficult for localized areas of microwave concentration to occur, and thus making it possible to suppress variations in the distribution of microwaves inside the cylinder. However, the microwaves irradiated onto the object being processed inside the reaction tube located in the center of the housing are the portion of the microwaves that propagate along the inner surface of the cylindrical body that are reflected toward the reaction tube from each inner surface of the cylindrical body with a regular pentagonal cross-section. Compared to the case where microwaves are directly irradiated toward the reaction tube from the waveguide, the amount of microwave irradiation may be less. In addition, propagating microwaves by rotating them inside the cylindrical body along the inner surface of the cylindrical body increases the attenuation of the microwaves, which may not be efficient.

[0006] Furthermore, in the latter case, because the fan antenna is installed close to the front of the waveguide, much of the microwave introduced from the waveguide hits the fan antenna and returns to the waveguide, preventing the microwave from efficiently diffusing within the chamber.

[0007] In view of the problems of the prior art, the present invention aims to enable efficient heat treatment of an object using microwaves diffused within the enclosure, while preventing localized concentration of microwaves inside the enclosure. [Means for solving the problem]

[0008] To solve the above problems, the microwave reaction apparatus of the present invention is a vertical reaction apparatus that introduces microwaves into a housing having a top surface, a peripheral surface, and a bottom surface, and heats an object to be processed placed inside the housing, The aforementioned peripheral body is constructed by arranging multiple side surfaces perpendicular to the base body, and such that the side surfaces do not face each other parallel to one another. Asymmetrical in plan view Formed in a polygonal shape, A microwave inlet is provided on at least one of the plurality of side surfaces. togetherThe device is characterized by having a microwave diffusion fan antenna provided on at least one of the other side bodies that do not have a microwave inlet.

[0009] According to this, microwaves are introduced into the enclosure from a microwave inlet provided on one of the side panels that make up the enclosure's peripheral surface, and are irradiated onto the object to be processed placed inside the enclosure to process the object. A waveguide is connected to a microwave inlet provided on the side body, and microwaves are irradiated horizontally from the waveguide through the microwave inlet toward the opposing side body inside the housing. Since the object to be processed is positioned in the path of the microwaves irradiated from the waveguide, the object to be processed can be processed efficiently. Furthermore, of the microwaves introduced into the enclosure, the portion not absorbed by the object being processed is reflected by the inner surface of the peripheral side panels and propagates within the enclosure. The peripheral side panels are arranged so that multiple side panels are perpendicular to the base and that the side panels do not face each other parallel to one another. Asymmetrical polygonal shape in plan view Because they are positioned in such a way, the microwaves are less likely to propagate toward the microwave inlet side due to reflection from the inner surface of each side body, effectively preventing microwaves from flowing back into the waveguide and causing energy loss. Furthermore, within the enclosure, microwaves are reflected by fan antennas located on other side panels where microwave inlets are not provided, and then diffuse and propagate within the enclosure. Combined with microwaves that propagate while reflecting off the inner surfaces of each side panel, microwaves are distributed throughout the entire enclosure. This makes it less likely for localized areas of concentration to occur inside the enclosure, and enables efficient processing of objects placed inside the enclosure.

[0010] In the microwave reactor with the above configuration, the peripheral surfaces of the housing can be easily configured in such a way that the surfaces do not face each other in parallel by combining multiple surfaces, where at least one surface has a width that is not the same as the width of the other surfaces. The reason for arranging the peripheral sides of the enclosure in a polygonal shape, preferably an odd-numbered polygon, in plan view is to suppress the propagation of microwaves introduced into the enclosure from the microwave inlet back towards the microwave inlet. However, if there are many side panels and many corners, propagation back towards the microwave inlet is promoted, and the amount of energy loss tends to increase. Also, a large number of side panels makes the assembly of the enclosure more complex and increases the number of work hours. It is preferable to arrange the peripheral sides in a pentagonal shape in plan view, as this effectively suppresses propagation back towards the microwave inlet and allows for easy assembly of the enclosure.

[0011] Furthermore, if the fan antenna is positioned facing the microwave inlet, microwaves may be reflected by the fan antenna and propagate towards the microwave inlet. Therefore, it is preferable that the fan antenna be positioned on a side surface that does not face the microwave inlet.

[0012] The microwave reaction apparatus with the above configuration may be provided with microwave inlets and waveguides on multiple side surfaces, and microwaves may be introduced into the housing from each microwave inlet where each waveguide is installed. Fan antennas may also be installed at multiple positions that are not facing these microwave inlets.

[0013] Furthermore, in the microwave reactor with the above configuration, a reactor made of a microwave-transmitting material such as glass, ceramics, porcelain, or synthetic resin material may be installed inside the housing, and the material to be processed may be housed inside this reactor. Multiple reactors, each housing the material to be processed, may be installed inside the housing.

[0014] For promoting the treatment of the object to be treated by microwave irradiation, it is preferable that the reactor is arranged in front of the microwave inlet. In this case, the reactor may be filled with a solvent having a large microwave absorption. Examples of the solvent having a large microwave absorption include an aqueous alkali solution and other aqueous solutions. When the reactor is arranged in front of the microwave inlet, the microwave before reflection and stirring may concentrate on the object to be treated, which may cause thermal runaway. However, when the reactor is filled with a solvent having a large microwave absorption as described above, the possibility of such a phenomenon occurring can be alleviated. Conversely, when it is filled with such a solvent, the penetration depth of the microwave becomes short. Therefore, in terms of irradiating a microwave with a slightly higher intensity, it can be said that it is preferable to arrange the reactor on the front side of the microwave inlet. Further, a cooling or heating coil may be provided inside the reactor so that the reaction temperature of the object to be treated can be adjusted.

Advantages of the Invention

[0015] According to the microwave reaction apparatus of the present invention, while preventing the occurrence of local concentration of microwaves in the housing where the object to be treated is arranged, it is possible to efficiently heat and treat the object to be treated with the microwaves diffused inside the housing.

Brief Description of the Drawings

[0016] [Figure 1] It is an external view of a microwave reaction apparatus according to an embodiment of the present invention. [Figure 2] It is a schematic side view of the microwave reaction apparatus of FIG. 1. [Figure 3] It is a schematic top view through the inside of the microwave reaction apparatus of FIG. 1. [Figure 4] It is a schematic plan view for explaining the configuration of the peripheral side surface body of the microwave reaction apparatus of FIG. 1. [Figure 5] It is a view showing the configurations of the door side (A) and the main body side (B) of each side surface body serving as the opening / closing port of the microwave reaction apparatus. [Figure 6] [[ID=3D]]It is a schematic side view through the inside of the reactor. [[ID=D3]] [Figure 7]It is a schematic external view of a microwave reactor of another embodiment of the present invention. [Figure 8] It is a figure which showed the heating state in a housing | casing in a comparative example. [Figure 9] It is a figure which showed the heating state in a housing | casing in an Example.

Mode for carrying out the invention

[0017] Hereinafter, a preferred embodiment of the microwave reactor of the present invention will be described based on the drawings. However, the embodiments shown below are examples for embodying the technical idea of the present invention, and the present invention is not limited to the embodiments described below.

[0018] FIG. 1 shows the external appearance of a microreactor according to an embodiment of the present invention, and FIGS. 2 and 3 show a schematic side view and a schematic top view through the inside of the same apparatus, respectively. As shown in each figure, the microwave reactor 1 of this embodiment is provided with a reactor 6 containing a processing object in a housing 2 composed of a top surface body 3, a peripheral side surface body 4, and a bottom surface body 5. Microwaves are introduced into the housing 2 from a waveguide 7 connected to the outer surface of one side surface body 41 of the peripheral side surface body 4, and the processing object in the reactor 6 is irradiated with microwaves, whereby the processing object is processed. It is configured.

[0019] Specifically, the top surface body 3, the peripheral side surface body 4, and the bottom surface body 5 are all formed of a non-magnetic metal plate such as aluminum or non-magnetic stainless steel. The peripheral side surface body 4 is vertically arranged on the bottom surface body 5, and the top surface body 3 is covered on the upper end of the peripheral side surface body 4, thereby forming a housing 2 in which the internal space is substantially sealed.

[0020] As shown in FIGS. 3 and 4, the peripheral side surface body 4 is formed in a pentagon in plan view by joining five side surface bodies 41, 42, 43, 44, and 45. The five side surface bodies are formed such that the side surface bodies 41 and 42 have substantially the same width, the side surface bodies 43 and 45 have a wider width than this, and the side surface body 44 has a narrower width. By arranging these side surface bodies having different widths in a pentagon in plan view, the side surface bodies face each other non-parallelly.

[0021] A microwave inlet 41a, which is an opening, is formed in the side body 41, and microwaves output from the waveguide 7 connected to the outer surface of the side body 41 are introduced into the housing 2 through the microwave inlet 41a. The circular lines in Figures 3 and 4 indicate the reactor 6, which houses the object to be processed and is installed inside the housing 2. The reactor 6 is positioned in front of the microwave inlet 41a so that it is irradiated with microwaves output from the waveguide 7. When the reactor 6 is positioned directly in front of the microwave inlet 41a, the reactor 6 may be filled with a solvent that has high microwave absorption. Examples of solvents with high microwave absorption include alkaline aqueous solutions and other aqueous solutions. When the reactor 6 is positioned directly in front of the microwave inlet 41a, the microwaves before reflection and stirring may be concentrated on the object being treated, potentially causing thermal runaway. However, if the reactor 6 is filled with a solvent that has high microwave absorption, as in the above embodiment, the possibility of this phenomenon occurring can be mitigated. Conversely, when filled with such a solvent, the penetration depth of the microwaves is shortened, so it can be said that it is preferable to position the reactor 6 directly in front of the microwave inlet 41a in order to irradiate with microwaves of the strongest possible intensity. Furthermore, the degree of microwave absorption of the solvent to be filled can be determined analytically or experimentally, depending on the microwave intensity, the distance between the reactor 6 and the microwave inlet 41a, the size of the reactor 6, etc., in order to prevent thermal runaway of the material being processed.

[0022] Furthermore, as shown in Figure 3, a fan antenna 8 is installed on the inner surface of the side body 44, which is not facing the side body 41, that is, at a position offset from the facing position, and a motor 81 that drives the fan antenna 8 is installed on the outer surface. By rotating the fan antenna 8, the microwaves introduced into the housing 2 can be diffused. It is preferable that the fan antenna 8 is designed so that reflected microwaves do not return to the microwave inlet 41a side.

[0023] Furthermore, the side body 45 is composed of a side body 45A having an opening 45A1 in the center, and a door body 45B whose one end is rotatably connected to one end of the side body 45A via a hinge 46. More specifically, as shown in Figure 5, the side body 45A is formed in a frame shape with a horizontally elongated rectangular opening 45A1 in the center, and both sides are continuously connected to the side body 41 and the side body 44, respectively, to form a part of the peripheral side body 4. The door body 45B is sized to perfectly overlap the side body 45A, and one side of it is connected to one end of the side body 45A via a hinge 46, so that it is mounted overlapping the front side of the side body 45A. A viewing window 45B1 made of a glass plate with wire mesh embedded in it is provided inside the surface of the door body 45B, and latch-type fasteners 47, 47 that connect to the side body 45A are attached to the upper and lower ends of the end opposite to the side to which the hinge 46 is attached, and a handle 48 is attached in the center. The side body 45, consisting of the side body 45A and the door body 45B, forms the opening of the housing 2. By rotating the door body 45B horizontally outward around the hinge 46, the opening 45A1 of the side body 45A is opened, allowing the reactor 6 to be installed into and removed from the housing 2. The housing 2 is closed by rotating the door body 45B to the opposite side and overlapping it with the side body 45A, and the inside of the housing 2 is sealed by fixing the door body 45B on the side body 45A with the fasteners 47, 47, allowing the processing of the material to be processed by introducing microwaves in this state.

[0024] The top surface 3 has three openings 31, 32, and 33 formed within its surface at intervals from each other, and pipes 31a, 32a, and 33a of appropriate lengths are connected to the top of each opening, thereby connecting each pipe to the inside of the housing 2.

[0025] Of the aforementioned piping, a stirrer 9 is inserted into the housing 2 from the upper end of the central pipe 32, allowing the material to be processed contained in the reactor 6 to be stirred (see Figure 6). A refrigerant inlet pipe 10a and outlet pipe 10b for a condenser (not shown) are inserted into pipe 31, and both pipes are connected to a cooling or heating coil 10 installed in the reactor 6, allowing the refrigerant to be circulated and supplied to the cooling or heating coil 10 (see the same figure). In addition, a thermometer (thermocouple) 11 is inserted into the housing 2 from the upper end of pipe 33, allowing the temperature of the material to be processed contained in the reactor 6 to be measured (see the same figure). While the refrigerant can be selected arbitrarily, it is preferable to use one that has lower microwave absorption than the solution packed into reactor 6. This suppresses microwave absorption by the refrigerant and prevents a reduction in heating efficiency.

[0026] Furthermore, the top surface 3 has openings 34 and 35 formed on either side of the three openings 31, 32, and 33. Both openings 34 and 35 are covered with lids. As shown in Figure 3, these five openings are arranged in a line in front of the microwave inlet 41a formed in the side body 41. When the reactor 6 is positioned approximately in the center of the housing 2, as shown in the figure, the piping is installed in openings 31, 32, and 33; when it is positioned closer to the side body 41, it is installed in openings 34, 31, and 32; and when it is positioned further away from the side body 41, it is installed in openings 32, 33, and 35. This allows the agitator 9, refrigerant pipes 10a and 10b, and thermometer 11, inserted through each pipe, to reach the reactor 6.

[0027] The base body 5 has a heat exchanger 12 installed on its underside, and the temperature change caused by the heat exchanger 12's heat dissipation or cooling operation is transferred to the housing 2 via the base body 5, thereby controlling the temperature inside the housing 2.

[0028] The reactor 6 is made of a microwave-transmitting material such as glass, ceramics, porcelain, or synthetic resin material, and as shown in Figure 6, it consists of a bottomed cylindrical main container 61 with an open top inside which the material to be processed is contained, and a lid 62 that covers the top opening of the main container 61.

[0029] Inside the main container 61, a spirally wound cooling or heating coil 10 with a diameter smaller than the inner diameter of the main container is installed. The refrigerant supplied from the condenser is circulated through the coil 10 into the main container 61, thereby cooling the object to be processed. The cooling or heating coil 10 is installed with its spirally wound central axis slightly offset from the center of the main container 61.

[0030] The lid 62 has three openings 62a, 62a, 62a arranged in a row, and when the lid 62 is placed over the main container 61, the agitator 9, refrigerant pipes 10a, 10b, and thermometer 11 are passed through these openings to enter the main container 61. The refrigerant pipes 10a and 10b are grounded within the housing 2 and are connected to both ends of the cooling or heating coil 10 on the underside of the lid 62, respectively.

[0031] In this configuration of the microwave reactor 1, a reactor 6 containing the material to be processed is placed inside the housing 2. Microwaves output from the waveguide 7 and introduced into the housing 2 through the microwave inlet 41a are irradiated onto the reactor 6, and the microwaves that pass through the reactor 6 are absorbed by the material to be processed, thereby processing the material.

[0032] The reactor 6, which houses the material to be processed within the housing 2, is positioned directly in front of the microwave inlet 41a, that is, in the path of microwave propagation introduced into the housing 2 from the waveguide 7. This allows for efficient absorption of microwaves by the material to be processed. Furthermore, any microwaves introduced into the housing 2 that are not absorbed by the material to be processed are reflected by the inner surface of the periphery body 4 and propagate within the housing 2. However, the periphery body 4 is formed by arranging five side panels 41, 42, 43, 44, and 45 vertically on the base body 5, with each side panel not facing parallel to the others, creating a pentagonal arrangement in plan view. As a result, microwaves are less likely to propagate towards the microwave inlet 41a due to reflection from the inner surface of each side panel, effectively preventing backflow of microwaves into the waveguide 7 and resulting in energy loss.

[0033] The microwaves introduced into the enclosure 2 are reflected by the fan antenna 8, which is located on the side body 44 that does not face the microwave inlet 41a, and spread and propagate within the enclosure 2. Combined with the microwaves that propagate while reflecting off the inner surfaces of each side body, the microwaves are uniformly spread throughout the entire enclosure 2. As a result, areas where microwaves are locally concentrated within the enclosure 2 are less likely to occur, and the objects to be processed placed inside the enclosure 2 can be processed efficiently.

[0034] Furthermore, during the processing of the material to be processed, the reaction of the material to be processed can be accelerated by stirring the solvent contained in the reactor 6 with the material to be processed using a stirrer 9, or by measuring the temperature of the material to be processed with a thermometer 11, and adjusting the temperature of the material to be processed by circulating a refrigerant through the cooling or heating coil 10 as needed.

[0035] Furthermore, since the cooling or heating coil 10 is formed by winding a metal tube in a spiral shape, it also has the effect of promoting the reaction of the material being processed in the center of the reactor 6 through the action described below. Generally, microwaves are blocked by metal plates, metal tubes, etc., but in the case of a spiral shape as in this embodiment, when microwaves irradiated onto the reactor 6 reach the cooling or heating coil 10, an induced current flows in the cooling or heating coil 10 due to so-called electromagnetic induction, and in response to this induced current, an induced magnetic field and electric field, i.e., microwaves are generated. In the case of a spiral shape, these microwaves are generated concentrated near the center of the cooling or heating coil 10. Therefore, it is presumed that the microwaves thus generated promote the reaction of the material being processed inside the cooling or heating coil 10, that is, the material being processed in the center of the reactor 6. In addition, when microwaves reach the cooling or heating coil 10, an induced current is generated, which causes so-called induction heating in the cooling or heating coil 10 itself, thereby promoting the heating of the object being processed. In this embodiment, the distance (D) between the outer circumference of the cooling or heating coil 10 and the inner wall of the reactor 6 is set to a distance less than the microwave half-depth. Therefore, the microwaves penetrate the reactor 6 and reach the cooling or heating coil 10, irradiating the object to be processed deeply. Furthermore, even after reaching the cooling or heating coil 10, the reaction is promoted by the aforementioned action. In this way, the reaction field spreads over a wide area due to the propagation of microwaves within the reactor 6, allowing the microwaves to be absorbed by the entire material to be processed, from the periphery to the center of the reactor 6, thereby enabling efficient processing of the material.

[0036] Figure 7 shows a schematic appearance of a microwave reactor according to another embodiment of the present invention. The microwave reactor 1 in the illustrated configuration has waveguides 7, 7 installed on the outside of two side bodies, side body 41 and side body 44, which are located opposite side body 41, of a peripheral body 4 formed in a pentagon shape in plan view. Microwaves output from waveguides 7, 7 are introduced into the housing 2 through microwave inlet openings formed in both side bodies 41 and 44. A supply pipeline 13 and a discharge pipeline 14 for the material to be processed are connected to a reactor 6, which is installed inside the housing 2 and houses the material to be processed. Unprocessed material to be processed is introduced into the reactor 6 from outside the housing 2 through the supply pipeline 13, and after processing, the material to be processed is discharged from the reactor 6 to the outside of the housing 2 through the discharge pipeline 14. The configuration of the pentagonal periphery body 4 in plan view, the placement of the fan antenna 8 on a periphery body not facing the periphery bodies 41, 44 on which the waveguides 7, 7 are located within the housing 2, and the fact that the reactor 6 consists of a main container 61 and a lid 62, with a cooling or heating coil 10 installed inside the main container 61, and equipped with a stirrer 9 and a thermometer 11, are all the same as in the above-described configuration. At least one of the periphery body 4 is provided with a viewing window so that the inside of the housing 2 can be observed from the outside.

[0037] In this embodiment of the microwave reactor 1, microwaves output from the two waveguides 7, 7 are introduced into the housing 2, and the material to be processed housed in the reactor 6 absorbs and processes them. The peripheral body 4 of the housing 2 is formed by arranging five side panels 41, 42, 43, 44, 45 vertically on the bottom body 5, with each side panel not facing each other parallel to form a pentagonal arrangement in plan view. This effectively prevents microwaves from being reflected by the inner surfaces of each side panel and flowing back into the waveguides 7, 7, resulting in energy loss. Furthermore, a fan antenna 8 provided inside the housing 2 diffuses the microwaves within the housing 2, preventing localized concentration of microwaves. Furthermore, by placing the material to be processed into the reactor 6 from the outside of the housing 2 through the supply pipeline 13, and then discharging the material from the reactor 6 to the outside of the housing 2 through the discharge pipeline 14 after treatment by microwave irradiation, it is possible to process the material continuously without opening or closing the housing 2.

[0038] Figures 1 to 3 show the results of a verification of the effectiveness of diffusing microwaves introduced into the housing 2 using a fan antenna 8 for the microwave reactor 1 in the configuration shown.

[0039] As shown in Figures 8 and 9, the fan antenna 8 was installed on the side panel 43 to form the enclosure 2. 100cc of water was placed in each of the 30 Erlenmeyer flasks, and they were arranged on the bottom surface 3 of the housing 2 as shown in both figures. The water temperature before the test was 20°C. A microwave wave with an output of 400W was introduced into the housing 2 from waveguide 7 and irradiated onto the flask. In the embodiment, the fan antenna 8 was rotated while microwaves were introduced into the housing 2, whereas in the comparative example, the fan antenna was not operated. Microwave irradiation was performed for 10 minutes, and the water temperature in each flask was measured after irradiation was stopped.

[0040] Figure 8 shows the test results of the comparative example. The circles on the base 5 represent flasks; double circles indicate flasks where a water temperature of 30°C or higher was measured, and single circles indicate flasks where a water temperature lower than 30°C was measured. In a comparative example where microwaves were irradiated with the fan antenna 8 stopped, the degree of water temperature rise was smaller than in the example, and the flasks that reached a water temperature exceeding 30°C were located along the inner surface of the peripheral body 4. The water temperature of the flask located closer to the center of the bottom body 5 did not reach 30°C.

[0041] Figure 9 shows the test results of the example. Similar to Figure 8, the "○" marks on the base 5 represent flasks, with double circles indicating flasks where a water temperature of 30°C or higher was measured, and triple circles indicating flasks where a water temperature of 40°C or higher was measured. In the embodiment in which the fan antenna 8 was rotated, the water temperature of all the flasks on the base body 5 exceeded 30°C, and in many cases, including those positioned closer to the center of the base body 5, the water temperature exceeded 40°C. This is presumed to be because the microwaves were reflected by the fan antenna 8 and diffused within the housing 2, but instead of propagating back to the waveguide 7, they propagated within the housing 2 with a nearly uniform distribution.

[0042] In the above embodiment, the reactor 6 is configured to cool the object to be processed by circulating a refrigerant through a cooling or heating coil 10 installed inside the reactor 6. However, instead of a refrigerant, a heat transfer medium may be supplied to the cooling / heating coil 10 as a means of heating the object to be processed. The microwave reactor of the present invention and the configuration, shape, and combination of its constituent components, such as the housing and reactor, are merely examples and can be modified in various ways based on design requirements, etc., without departing from the spirit of the present invention. [Explanation of symbols]

[0043] 1 Microwave reactor, 2 Housing, 3 Top body, 4 Side body, 41, 42, 43, 44, 45 Side body, 45A Side body, 45B Door body, 5 Bottom body, 6 Reactor, 61 Main container, 62 Lid, 7 Waveguide, 8 Fan antenna, 9 Stirrer, 10 Cooling or heating coil, 11 Thermometer, 12 Heat exchanger, 13 Supply pipeline, 14 Discharge pipeline

Claims

1. A vertical microwave reaction apparatus that processes an object to be processed placed inside a housing having a top surface, a peripheral surface, and a bottom surface, by introducing microwaves into the housing said housing, The aforementioned peripheral surface is formed by arranging multiple side surfaces perpendicular to the base surface, such that the side surfaces do not face each other parallel to one another, to create an asymmetrical polygonal shape in plan view. A microwave reaction apparatus characterized in that at least one of the plurality of side bodies is provided with a microwave inlet, and at least one of the other side bodies that does not have a microwave inlet is provided with a fan antenna for microwave diffusion.

2. The microwave reactor according to claim 1, wherein the apparatus is formed by combining a plurality of side panels, the width of at least one of which is not the same as the width of the other side panels.

3. The microwave reaction apparatus according to claim 1 or 2, wherein the circumferential surface body is formed in a pentagonal shape in plan view.

4. The microwave reactor according to any one of claims 1 to 3, further comprising at least one reactor in which a material to be processed is housed inside the casing.

5. The microwave reaction apparatus according to claim 4, wherein the reactor is positioned in front of the microwave inlet.

6. The microwave reactor according to claim 4 or 5, further comprising a coil for cooling or heating inside the reactor.

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