TWM624002U - Continuous microwave heating system - Google Patents

Abstract

The invention discloses a microwave suppression structure, including: a heating cavity with a microwave power source in the heating cavity, and an opening on each opposite side, wherein the height of the opening is greater than 10 cm; two sets of microwave suppression cavities, wherein the microwave suppression cavities are respectively butted with the opening positions of the heating cavity, the microwave suppression cavities contain a plurality of absorbing materials, and the outermost ends of the microwave suppression cavities are provided with soft conductive materials; and a conveyor belt, used for carrying and conveying heated materials. The continuous microwave heating system with a large opening according to the present invention has the effects of easy processing and manufacturing, cost reduction, volume reduction and microwave safety.

Description

Continuous microwave heating system

This creative department has a microwave heating system, more particularly, a continuous microwave heating system with a large opening.

Traditional heating methods, such as flame, hot air, electric heat, steam, etc., all use the principle of heat conduction to transfer heat from the outside of the heated object to the inside, and gradually increase the center temperature of the object. It takes a certain amount of time for the center of a substance to reach the desired temperature, and even longer for objects with poor thermal conductivity.

Microwave is an electromagnetic wave with a frequency of 300MHz to 300GHz, which is usually used in radar and communication technology as information transmission. In recent years, it has also been used in various industries and agriculture for heating, drying or cracking substances. The commonly used microwave power frequencies are 915MHz and 2450MHz, which can make the molecules of polar substances rub against each other to generate heat and heat. In use, it can be selected according to the shape, size and water content of the heating material. Microwave heating is a process of making the object to be heated itself a heating body without heat conduction, and heating inside and outside at the same time, so the heating effect can be achieved in a short time. And when microwave heating, all parts of the object can usually penetrate electromagnetic waves evenly and generate heat, so the uniformity is greatly improved. In microwave heating, the microwave energy can only be absorbed by the heating object to generate heat, and the air in the heating room and the corresponding container will not generate heat, so the thermal efficiency is extremely high, and the production environment is also significantly improved.

In the past, the design of microwave heating equipment was mostly a single batch cavity. For continuous feeding, a continuous microwave heating system with openings is required. However, when the material is too large and the opening height of the input and output needs to exceed 10 cm, it is usually impossible to use the general suppression structure. Effectively suppress the leakage of microwave energy.

In view of the above problems, it is necessary to propose a continuous microwave heating system with a large opening in which the microwave energy leakage is within a safe value to solve the above problems.

The main purpose of this creation is to propose a continuous microwave heating system with a large opening, which can effectively suppress the intensity of microwaves at the input and output opening ends.

In order to achieve the above-mentioned main purpose, this creation proposes a continuous microwave heating system, including: a heating cavity with a microwave power source and an opening on each of the opposite sides, wherein the height of the opening is greater than 10 cm; Two groups of microwave suppression cavities, the microwave suppression cavities are respectively connected with the openings of the heating cavity, the microwave suppression cavities contain a plurality of absorbing materials, and the absorbing materials are hung on the microwave suppression cavities The outermost ends of the microwave suppression cavities are provided with soft conductive materials; and a conveyor belt enters a group of the microwave suppression cavities, and then enters an opening of the heating cavity, and passes through the microwave suppression cavity. After the heating cavity, another opening enters into another group of the microwave suppression cavities.

According to one of the features of this creation, the height of the opening is between 10 cm and 80 cm.

According to a feature of the present invention, a plurality of water circles are further arranged in the microwave suppression cavities to surround the interior of the microwave suppression cavities.

According to one feature of the present invention, the absorbing materials are soft materials.

According to a feature of this creation, the absorbing materials are whole-surface materials, from bottom to top There are multiple cuts to separate.

According to one feature of the present invention, the lengths of the absorbing materials are less than the heights of the microwave suppression cavities.

According to one feature of the present invention, the absorbent materials do not contact the conveyor belt.

According to one feature of the present invention, a soft conductive material is further provided at the joints with the openings between the microwave suppression cavities and the heating cavity, and the soft conductive material hangs from the microwave suppression cavities and descends.

According to one feature of the present invention, the two outermost ends of the microwave suppression cavities are further provided with openable and closable metal shutters.

According to one feature of the present invention, the water in the hydrospheres in the microwave suppression cavities is flowing, and flows through a cooling device and then enters the hydrospheres to achieve a cooling cycle.

According to one feature of the present invention, the continuous microwave heating system further includes a wave absorbing device.

To sum up, the large opening continuous microwave heating system of this creation has the following effects:

1. The system is easy to process and manufacture.

2. The system manufacturing cost is reduced.

3. The overall system length is reduced.

4. Reach the microwave energy safety value.

100: Continuous Microwave Heating System

110: Heating cavity

112: Opening

120: Microwave Power Source

122: Microwave Energy

130: microwave suppression cavity

132: Absorbent material

134a, 134b: soft conductive material

136: Fluid Absorbent Materials

140: Exhaust module

150: conveyor belt

180: heated material

H: height

In order to make the above-mentioned and other objects, features, and advantages of the present invention more obvious and easy to understand, a few preferred embodiments are exemplified below, and are described in detail as follows in conjunction with the accompanying drawings.

FIG. 1 is a schematic side view of the structure of an embodiment of a continuous microwave heating system.

Figure 2 is a schematic side view of the structure of an embodiment of the microwave suppression cavity of the large opening continuous microwave heating system.

Although the present invention may be embodied in various forms of embodiments, those shown in the drawings and described herein are preferred embodiments of the present invention. Those skilled in the art will appreciate that the apparatus and methods specifically described herein and illustrated in the accompanying drawings are considered to be exemplary, non-limiting exemplary embodiments of the present creation, and that the scope of the present creation is limited only by the scope of the patent application. be defined. Features illustrated or described in connection with one exemplary embodiment may be combined with features of other embodiments. Such modifications and changes will be included within the scope of this creation.

Microwave has different effects on materials of different properties, which is beneficial to drying operations. Because water molecules have the best absorption of microwaves, the part with high water content absorbs more microwave power than the part with lower water content, which is the characteristic of choosing heating. When drying raw materials, paper and other products, this feature can be used to achieve uniform heating and uniform drying. It is worth noting that the higher the temperature, the better the absorption of some substances, which will cause a vicious circle. The local temperature rises sharply, causing overdrying and even carbonization. When microwave heating such substances, attention should be paid to formulating a reasonable heating process.

Please refer to FIG. 1 , which is a schematic side view of the structure of an embodiment of a continuous microwave heating system 100 . The continuous microwave heating system 100 includes: a heating cavity 110 , two groups of microwave suppression cavities 130 ; and a conveyor belt 150 . The black arrow in the figure is the direction of material travel.

The heating cavity 110 has a plurality of microwave power sources 120, and each has an opening 112 on opposite sides, wherein the height of the opening 112 is greater than 10 cm. The microwave power sources 120 provide microwave energy 122 into the heating cavity 110, and the microwave frequency of the microwave power sources 120 The rate is selected from one of 950MHz, 2450MHz or 5800MHz. Since the heating cavity 110 has two openings 112 , microwave energy will leak out through the two openings 112 of the heating cavity 110 . The two groups of microwave suppression cavities 130 are respectively connected to the positions of the heating cavity 110 having the openings 112 , and the microwave suppression cavities include a plurality of absorbing materials 132 and a fluid absorbing material 136 .

The heating chamber 110 has two openings 112 to allow the conveyor belt 150 to pass through the heating chamber 110 , and rollers 155 are provided below the conveyor belt 150 to support the conveyor belt 150 . The conveyor belt 150 enters a group of the microwave suppression cavities 130 , then enters an opening 112 of the heating cavity 110 , and passes through the heating cavity 110 through another opening 112 to enter the microwave suppression cavities Another group of bodies 130. The conveyor belt 150 carries the heated material 180 . The conveyor belt 150 can be continuous conveying or step-by-step conveying. Continuous conveying means that the fixed conveying speed is forwarded; stepping conveying means that each conveying will advance a certain distance and stay for a period of time. The black arrow in Figure 1 is the direction of material travel. Since the heated material 180 is a bulky item, the height of the opening 112 may exceed 10 cm.

The microwave power sources 120 provide microwave energy 122 to the heating cavity 110 to heat the heated material 180 . When the heated material 180 is heated in the heating cavity 110 , gas will be generated, and the exhaust module 140 is used for discharging the gas generated by the heated material 180 out of the heating cavity 110 .

Please also refer to FIG. 2 , which is a schematic side view of the structure of an embodiment of the microwave suppression cavity of the large opening continuous microwave heating system of the present invention. It more clearly illustrates the implementation of these two sets of microwave suppression cavities 130 . The black arrow in the figure is the direction of material travel.

The two sets of microwave suppression cavities 130 are respectively butted with the positions of the heating cavity 110 having the openings 112 , and the microwave suppression cavities 130 include a plurality of absorbing materials 132 , and the absorbing materials 132 are hung on the microwave suppression cavities 130 . The cavity 130 hangs down. It should be noted that the outermost ends of the microwave suppression cavities 130 are provided with soft conductive materials 134a.

In one embodiment, the height H of the opening 112 is between 10 cm and 80 cm. Preferably, the height of the opening is between 15 cm and 60 cm

In one embodiment, the microwave suppression cavities 130 are further provided with a plurality of fluid absorbing materials 136 surrounding the microwave suppression cavities 130 .

In one embodiment, the absorbing materials 132 are soft materials, but can absorb microwaves, such as carbon-containing soft materials.

In one embodiment, the absorbing materials 132 are whole-surface materials, which are cut and separated from bottom to top in multiple sections. That is, the absorbing materials 132 are a whole piece of absorbing materials, which are cut into multiple sheets, and are hung above the microwave suppressing cavities 130 from top to bottom to hang down. The heated material 180 can push away the absorbing materials 132 when the conveyor belt 150 is heated.

It should be noted that the lengths of the absorbing materials 132 are smaller than the heights of the microwave suppression cavities 130 . Also, the absorbent materials 130 do not contact the conveyor belt 150 .

A soft conductive material 134b is further provided at the joints of the microwave suppression cavities 130 and the heating cavity 110 with the openings 112 , and the soft conductive material 134b hangs from the microwave suppression cavities 130 and descends. The two outermost ends of the microwave suppression cavities 130 are further provided with metal shutters (not shown in the figure) that can be opened and closed.

The fluid absorbing material 136 in the microwave suppression cavities 130 is preferably a hydrosphere formed by water. The water in the fluid absorbent material 136 is flowing, and flows through a cooling device (not shown in the figure) and then enters the fluid absorbent material 136 to achieve a cooling cycle.

To sum up, the continuous microwave heating system with a large opening, which is the basis of this creation, has the following effects:

1. The system is easy to process and manufacture.

2. The system manufacturing cost is reduced.

3. The overall system length is reduced.

4. Reach the microwave energy safety value.

Although the present creation has been disclosed by the above-mentioned preferred embodiments, it is not intended to limit the present creation, and any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present creation. As explained above, various modifications and changes can be made without destroying the spirit of the invention. Therefore, the scope of protection of this creation should be determined by the scope of the appended patent application.

130: microwave suppression cavity

132: Absorbent material

134a, 134b: soft conductive material

136: Fluid Absorbent Materials

150: conveyor belt

H: height

Claims (10)

A continuous microwave heating system includes: a heating cavity with a microwave power source and an opening on opposite sides, wherein the height of the opening is greater than 10 cm; two groups of microwave suppression cavities, the The microwave suppression cavities are respectively docked with the openings of the heating cavity. The microwave suppression cavities contain a plurality of fluid absorbing materials. The fluid absorbing materials hang on the microwave suppression cavities and hang down. The outermost ends of the microwave suppression cavity are provided with soft conductive materials; and a conveyor belt enters a group of the microwave suppression cavities, and then enters an opening of the heating cavity, and passes through the heating cavity and is transported by another opening to enter into another group of the microwave suppression cavities. The continuous microwave heating system of claim 1, wherein the height of the opening is between 10 cm and 80 cm. The continuous microwave heating system of claim 1, wherein a plurality of fluid absorbing materials are further arranged in the microwave suppression cavities to surround the interior of the microwave suppression cavities. The continuous microwave heating system of claim 1, wherein the absorbing materials are soft materials. The continuous microwave heating system according to claim 1, wherein the absorbing materials are whole-surface materials, which are cut and separated from bottom to top in multiple sections. The continuous microwave heating system of claim 1, wherein the lengths of the absorbing materials are less than the heights of the microwave suppression cavities. The continuous microwave heating system of claim 1, wherein the absorbing materials do not contact the conveyor belt. The continuous microwave heating system of claim 1, wherein a soft conductive material is further provided at the joints of the microwave suppression cavities and the heating cavity with openings, and the soft conductive material is hung on the microwave suppression cavities body down. The continuous microwave heating system according to claim 1, wherein the two outermost ends of the microwave suppression cavities are further provided with metal shutters that can be opened and closed. The continuous microwave heating system of claim 1, wherein the fluid absorbing materials in the microwave suppression chambers flow, pass through a cooling device, and then enter the water circles to achieve a cooling cycle.

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