TWM647679U - Continuous load-bearing microwave heating system - Google Patents

Abstract

The present invention discloses a continuous load-bearing microwave heating system, comprising: 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 sets 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 hang on the microwave suppression cavities and hang down, the outermost ends of the microwave suppression cavities are provided with soft conductive materials; a conveyor belt, used to carry a heated material, and the conveyor belt enters a group of the microwave suppression cavities, and then enters the heating cavity an opening of the body passes through the heating cavity and enters another group of the microwave suppression cavities through another opening; and a carrier plate, disposed in the heating cavity and located below the conveyor belt. This continuous load-bearing microwave heating system is safe to use and heats a variety of heavy objects quickly and evenly.

Description

Continuous load-bearing microwave heating system

The invention relates to a microwave heating system, and more particularly to a large-opening continuous load-bearing microwave heating system.

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 to the inside of the object to be heated, gradually increasing the center temperature of the object. It takes a certain amount of time for the center of a substance to reach the required temperature, and objects with poor thermal conductivity take longer.

Microwaves are electromagnetic waves with frequencies between 300MHz and 300GHz. They are usually used in radar and communication technology for information transmission. In recent years, it has also been used in various industrial and agricultural applications for heating, drying or cracking materials. Commonly used microwave power frequencies are 915MHz and 2450MHz, which can cause polar material molecules to rub against each other to generate heat. During use, you can choose according to the shape, size and moisture content of the heating material. Microwave heating is a process in which the object to be heated becomes a heating element without the need for heat conduction. The inside and outside are heated at the same time, so the heating effect can be achieved in a short time. And when microwave heating occurs, electromagnetic waves can usually penetrate all parts of the object evenly and generate heat, so the uniformity is greatly improved. In microwave heating, microwave energy can only be absorbed by the heated object to generate heat. Neither the air in the heating room nor the corresponding container will generate heat, so the thermal efficiency is extremely high and the production environment is significantly improved.

In the past, the design of microwave heating equipment was mostly a single batch cavity. To enter continuously materials, a continuous load-bearing microwave heating system with openings is required. However, when the material is too large and the input and output opening height needs to exceed 10 centimeters, the use of general suppression structures usually cannot effectively suppress the leakage of microwave energy. In addition, when the material is too large and heavy, the conveyor belt will be deformed under the weight after entering the cavity, causing uneven heating.

In view of the above problems, it is necessary to propose a continuous load-bearing microwave heating system in which microwave energy leakage is within a safe value and can carry heavy objects into a large opening in the cavity to solve the above problems.

The main purpose of this creation is to propose a large-opening continuous load-bearing microwave heating system that can effectively suppress the intensity of microwaves at the input and output opening ends, and avoid materials that are too heavy, causing the conveyor belt to be deformed due to weight after entering the cavity. The problem of uneven heating.

In order to achieve the above main purpose, this invention proposes a continuous load-bearing microwave heating system, including: a heating cavity with a microwave power source and an opening on each opposite side, wherein the height of the opening is greater than 10 centimeter; two sets 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. Hanging down from the cavity, the outermost ends of the microwave suppression cavities are provided with soft conductive materials; a conveyor belt is used to carry a heated material, and the conveyor belt enters one of the microwave suppression cavities. , then enters an opening of the heating cavity, passes through the heating cavity, and then enters another group of the microwave suppression cavities through another opening; and a carrying plate is provided in the heating cavity and located on the conveyor Belt below.

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

According to a feature of this invention, the microwave suppression cavities are further provided with a plurality of water rings surrounding the interior of the microwave suppression cavities.

According to one of the characteristics of this invention, the absorbing materials are soft materials.

According to one of the characteristics of this creation, the absorbent materials are whole-surface materials that are cut into sections from bottom to top.

According to a feature of the invention, the length of the absorbing materials is smaller than the height of the microwave suppression cavities.

According to a feature of the invention, the absorbent materials do not come into contact with the conveyor belt.

According to one feature of this invention, a soft conductive material is provided at the opening-joint joint between the microwave suppression cavities and the heating cavity, and the soft conductive material hangs down from the microwave suppression cavities.

According to one of the features of this invention, the two outermost ends of the microwave suppression cavities are further provided with openable and closable metal gates.

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

According to one of the features of this invention, the continuous load-bearing microwave heating system further includes a wave absorbing device.

To sum up, the large-opening continuous load-bearing microwave heating system of this invention has the following functions:

1. The system is easy to process and manufacture.

2. System manufacturing costs are reduced.

3. The overall system length is reduced.

4. Reach the microwave energy safety value.

5. The conveyor belt can bear load without changing shape.

100: Continuous load-bearing microwave heating system

110: Heating cavity

112:Open your mouth

120:Microwave power source

122:Microwave energy

130:Microwave suppression cavity

132:Absorbent materials

134 a, 134b: Soft conductive materials

136: Fluid absorbent materials

140:Exhaust module

150: Conveyor belt

155:Roller

180: Heated materials

190: Loading plate

H: height

In order to make the above and other purposes, features, and advantages of the present invention more obvious and understandable, several preferred embodiments are listed below and described in detail with reference to the attached drawings.

Figure 1 is a schematic structural side view of an embodiment of a continuous load-bearing microwave heating system.

Figure 2 is a schematic structural side view of an embodiment of the microwave suppression cavity of the large-opening continuous load-bearing microwave heating system of this invention.

Although the invention can be embodied in different forms, those shown in the drawings and described herein are the preferred embodiments of the invention. Those skilled in the art will understand that the devices and methods specifically described herein and illustrated in the accompanying drawings are considered to be examples, non-limiting illustrative embodiments of the present invention, and the scope of the present invention 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 in the scope of this creation.

Microwaves have different effects on materials of different properties, which is beneficial to drying operations. Because water molecules absorb microwaves best, parts with high water content absorb more microwave power than parts with lower water content. This is the characteristic of selective heating. When drying wood, 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 absorptive properties of some substances will be, resulting in a vicious cycle, with local temperatures rising sharply, causing overdrying or even carbonization. When microwave heating such substances, attention should be paid to formulating a reasonable heating process.

Please refer to Figure 1, which is a schematic structural side view of an embodiment of a continuous load-bearing microwave heating system 100. The continuous load-bearing microwave heating system 100 includes: a heating cavity 110, two sets of microwave suppression cavities 130; a conveyor belt 150 and a carrying plate 190. The black arrow in the picture is the direction of material travel.

The heating cavity 110 has a plurality of microwave power sources 120 on opposite sides. There is an opening 112, 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 is selected from one of 950 MHz, 2450 MHz or 5800 MHz. 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 sets of microwave suppression cavities 130 are respectively connected to the positions of the openings 112 of the heating cavity 110. The microwave suppression cavities contain a plurality of absorbing materials 132 and a fluid absorbing material 136.

The heating cavity 110 has two openings 112 for allowing the conveyor belt 150 to pass through the heating cavity 110 . 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, passes through the heating cavity 110, and then enters the microwave suppression cavities through another opening 112. Another group of body 130. The conveyor belt 150 carries heated material 180 . The conveyor belt 150 can be continuously conveyed or stepped conveyed. Continuous conveying means forward transmission at a fixed conveying speed; step-by-step conveying means that each conveying will advance a certain distance and stay for a period of time. The black arrow in the first picture is the direction of material travel. Since the heated material 180 is a large-volume item, the height of the opening 112 exceeds 10 centimeters. The bearing plate 190 is disposed in the heating cavity 110 and is located below the conveyor belt 150 to prevent the heated material 180 from being too heavy and causing the conveyor belt 150 to be deformed after entering the heating cavity 110. This causes uneven heating of the heated material 180 .

The microwave power sources 120 provide microwave energy 122 to the heating cavity 110 to heat the heated material 180 . The heated material 180 will generate gas when heated in the heating cavity 110 . The exhaust module 140 is used to discharge the gas generated by the heated material 180 out of the heating cavity 110 .

Please also refer to Figure 2, which is a schematic side view of the structure of the microwave suppression cavity embodiment of the large-opening continuous load-bearing microwave heating system of the present invention. It explains more clearly that Implementation of two sets of microwave suppression cavities 130 . The black arrow in the picture is the direction of material travel.

The two sets of microwave suppression cavities 130 are respectively connected to the openings 112 of the heating cavity 110. The microwave suppression cavities 130 contain a plurality of absorbing materials 132. The absorbing materials 132 are hung on the microwave suppression cavities. The cavity 130 is lowered vertically. It should be noted that soft conductive materials 134a are provided at the two outermost ends of the microwave suppression cavities 130 .

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 interior of the microwave suppression cavities 130 .

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

In one embodiment, the absorbent materials 132 are made of a whole surface and are cut into multiple sections from bottom to top. That is, the absorbing materials 132 are a single piece of absorbing material, cut into multiple pieces, and hung from top to bottom 4 above the microwave suppression cavities 130 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 length of the absorbing materials 132 is less than the height of the microwave suppression cavities 130 . Moreover, the absorbent materials 132 do not contact the conveyor belt 150 .

A soft conductive material 134b is provided at the joint between the microwave suppression cavities 130 and the heating cavity 110 with the opening 112, and the soft conductive material 134b is suspended from the microwave suppression cavities 130. The two outermost ends of the microwave suppression cavities 130 are further provided with openable and closable metal gates (not shown in the figure).

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

To sum up, the large-opening continuous load-bearing microwave heating system of this invention has the following functions:

1. The system is easy to process and manufacture.

2. System manufacturing costs are reduced.

3. The overall system length is reduced.

4. Reach the microwave energy safety value.

5. The conveyor belt can bear load without changing shape.

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

100: Continuous load-bearing microwave heating system

110: Heating cavity

112:Open your mouth

120:Microwave power source

122:Microwave energy

130:Microwave suppression cavity

132:Absorbent materials

136: Fluid absorbent materials

140:Exhaust module

150: Conveyor belt

155:Roller

180: Heated materials

190: Loading plate

Claims (10)

A continuous load-bearing 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 sets of microwave suppression cavities, The microwave suppression cavities are respectively connected to the openings of the heating cavity. The microwave suppression cavities contain a plurality of absorbing materials. The absorbing materials are hung from the microwave suppression cavities and are lowered. The outermost ends of the microwave suppression cavity are provided with soft conductive materials; a conveyor belt is used to carry a heated material. The conveyor belt enters one of the microwave suppression cavities and then enters one of the heating cavities. The opening passes through the heating cavity and then enters another group of the microwave suppression cavities through another opening; and a bearing plate is provided in the heating cavity and located below the conveyor belt. The continuous load-bearing microwave heating system as claimed in claim 1, wherein the height of the opening is between 10 cm and 80 cm. The continuous load-bearing microwave heating system as claimed in claim 1, wherein the microwave suppression cavities are further provided with a plurality of fluid absorbing materials surrounding the interior of the microwave suppression cavities. The continuous load-bearing microwave heating system as described in claim 1, wherein the absorbing materials are soft materials. The continuous load-bearing microwave heating system as described in claim 1, wherein the absorbing materials are whole-surface materials that are cut into multiple sections from bottom to top. The continuous load-bearing microwave heating system as claimed in claim 1, wherein the length of the absorbing materials is less than the height of the microwave suppression cavities. The continuous load-bearing microwave heating system of claim 1, wherein the absorbing materials do not contact the conveyor belt. The continuous load-bearing microwave heating system as described in claim 1, wherein the openings of the microwave suppression cavities and the heating cavity are further provided with soft conductive materials, and the soft conductive materials are hung on the microwaves. Suppress the cavity from hanging down. The continuous load-bearing microwave heating system as described in claim 1, wherein the two outermost ends of the microwave suppression cavities are further provided with openable and closable metal gates. The continuous load-bearing microwave heating system as described in claim 3, wherein the fluid-absorbing materials in the microwave suppression cavities are flowing, flowing through a cooling device and then entering the water circles to achieve a cooling cycle.