KR101133180B1 - Manufacture method of vermiculite board and manufacture equipment of vermiculite board - Google Patents

Abstract

PURPOSE: A method and apparatus for manufacturing vermiculite board are provided to improve the durability of a vermiculite board, and to reduce manufacturing cost according to the reduction of manufacturing time, thereby improving productivity. CONSTITUTION: A method for manufacturing vermiculite board, which compresses and heats vermiculite powder accepted in a molding container(50), comprises a step of compressing vermiculite powder(11) by a compressor(40) and drying the surface of the vermiculite powder by heating by the heat of 250-350 °C from a heater(70) for 2-5 minutes at the same time; and a step of drying the inside of the vermiculite board by drying inner moisture of the vermiculite board through the irradiation of microwave on the surface-dried vermiculite board.

Description

Vermiculite board manufacturing method and vermiculite board manufacturing apparatus {manufacture method of vermiculite board and manufacture equipment of vermiculite board}

The present invention relates to a vermiculite board manufacturing method and a vermiculite board manufacturing apparatus, and more particularly, when manufacturing the vermiculite board by a press and a heater, the surface drying time of the vermiculite board by drying inside the vermiculite board by microwave By shortening and preventing damage to the vermiculite board, the surface of the vermiculite board is separated or broken, along with the seismic waves continuously generated on the surface as time goes by, and various movements occurring inside and outside the building, construction, and building. The present invention relates to a vermiculite board manufacturing method and apparatus for manufacturing a vermiculite board to prevent a closed end of the surface of the vermiculite board from occurring while being affected by vibration and sound waves.

In general, vermiculite is a mineral, and when heated to around 1,000 ° C, it has a property of expanding 5 to 20 times in volume, very light in weight, excellent in thermal insulation and heat insulation, and air due to its porous characteristics. In addition to its purifying and deodorizing effects, it is also known for its excellent sound-absorbing and sound-proofing effects, as well as its ability to absorb moisture when it comes in contact with it and release moisture when the air dries.

In addition, it is excellent in non-combustibility, it does not burn even if a fire occurs, it does not emit toxic gas, and the function of absorbing radiation and electromagnetic waves and far-infrared rays are emitted, which is beneficial to the living body.

In addition, it is known that there is a large number of useful effects, such as excellent antibacterial function and when the molding is made by cutting using a saw or a cutting tool smoothly also excellent workability.

Accordingly, research and development have been steadily attempted to use the vermiculite as a main material to make boards to form intaglio or embossed patterns in various colors, and to use them as interior and exterior materials for construction. When the vermiculite board is used as an interior material (finishing material), various useful functions as described above have a beneficial effect on the human body, and thus it is reported to the academic community that it can prevent sick house syndrome and atopic dermatitis. Even if you don't use wallpaper, you can use it as interior material and it will be more environmentally friendly.

Such vermiculite boards can have a variety of colors and can be easily molded to have a three-dimensional surface structure, so that further reinforcement in terms of strength can be used as a building exterior material, even when used as a building exterior material. Various useful effects as can be obtained as is.

However, in the conventional apparatus and method for manufacturing vermiculite board, which is expected to have various and useful effects, in the prior art, the pulverized vermiculite raw material is pressed using a press as it is, and at the same time, a heater is used at 250 ° C. to 350 ° C. for 15 minutes to 90 minutes. Since the vermiculite board is manufactured by heating and drying for a minute, drying of the vermiculite board is not carried out due to the thermal insulation of the vermiculite board itself. Of course, there is a problem in that the cost is reduced as the heating time of the heater becomes longer.

In addition, the surface manufactured by the conventional manufacturing apparatus and the manufacturing method and the material particles therein do not form a complete bond with one body, and a boundary line is formed so that the surface of the vermiculite board is separated or broken in the subsequent edge cutting and surface processing process. Along with the discarded dumping, as the use time elapses, the dumping surface of the vermiculite board is crumbly affected by the seismic waves continuously occurring on the earth's surface and various vibrations and sound waves generated inside and outside the building, construction, and other buildings. There is a problem that occurs.

Looking at the prior art, a composition for building materials using calcined vermiculite and a building panel manufacturing apparatus using the composition has been devised, which is non-combustible in the use of plastic foamed vermiculite for building materials For building materials including fillers to ensure that the inorganic binders can be mutually bonded to prevent problems caused by harmful substances such as environmental hormones, and to prevent the use of inorganic binders from increasing due to the vermiculite which is porous by plastic foaming. The present invention relates to a composition, and in constructing an apparatus for manufacturing the composition into a building panel, in a molding part consisting of a conveyor provided at the upper and lower sides after supplying and mixing a predetermined amount of each component of the composition stored in a silo to a mixer. It is intended to be molded into a panel form.

As another example, the material supply and pressurization device of the vermiculite board manufacturing apparatus of Patent No. 10-1058722 has been devised, which nozzles for supplying a certain amount of material into the vermiculite board manufacturing mold are fixed to the bottom and the inside is a space part. A truck for moving forward and backward through the hopper, a rail fixed to the frame, and a roller for advancing and reversing the hopper, and fixed to four places of the bogie, and the piston rod is fixed to the brace fixed to the hopper. And hydraulic cylinders for applying high pressure to the mold for forming vermiculite board, and fixed to two places of the bogie, and the piston rod is assembled to the brace fixed to the hopper, and the air cylinders for pressurizing the pressure plate. A pressure plate formed with a hole into which the nozzles fixed to the hopper are inserted, fixed through the pressure plate and the bolt, and a roller assembled thereon The roller is mounted on a rail fixed to the hopper to enable rolling motion, and the brackets supporting the pressure plate, and the pressure plate is fixed to the pressure plate through bolts between the brackets, and the roller is assembled on the upper side. It is mounted on the rail fixed to the hopper and performs the rolling motion. Another bracket for supporting the pressure plate with the support pins fixed upright on the side of the roller, and a bracket having a hole through which the support pins are penetrated at the end of the piston rod. The air cylinder is assembled and fixed to the bracket fixed to the hopper.

All of the prior arts having such a configuration can manufacture the vermiculite board by varying the composition constituting the vermiculite board or by the devices having different configurations so as to greatly improve the durability of the vermiculite board when manufacturing the vermiculite board as a raw material. As mentioned above, the problem caused by drying the compressed vermiculite board by the heater only cannot be solved at all, and accordingly, the problem caused by the delay of drying time and the cost burden are It is still not solved.

Republic of Korea Patent No. 10-0555350 (registered February 20, 2006) Republic of Korea Patent No. 10-1058722 (Registered Aug. 16, 2011)

The present invention has been made to solve the problems with the manufacturing method and apparatus for manufacturing a vermiculite board using a conventional vermiculite as a raw material, irradiated microwave to the vermiculite board when manufacturing the vermiculite board by pressing the crushed vermiculite raw material By drying the inside of the vermiculite board, the surface drying of the heater and the internal drying by microwave are performed simultaneously, so that the drying time for the vermiculite board is reduced, as well as the durability of the vermiculite board and the cost reduction due to the shortening of the drying time. The purpose of the present invention is to provide a vermiculite board manufacturing method and vermiculite board manufacturing apparatus capable of inducing and improving productivity.

Vermiculite board manufacturing method of the present invention as a means for achieving the above object, the pulverized vermiculite powder is put into a board molding container and accommodated vermiculite powder produced by compressing and heating the vermiculite powder contained in a board molding container containing vermiculite powder A board manufacturing method, comprising: compressing and drying a surface of a vermiculite board formed by compressing a vermiculite powder with a press and simultaneously heating the substrate for 2 minutes to 5 minutes with a heat of 250 ° C. to 350 ° C. with a heater; A microwave drying step of drying the interior of the vermiculite board is further included by irradiating microwaves to the vermiculite board on which the surface is dried by heating with a heater at the same time by pressing with a compactor to remove moisture from the vermiculite board.

The microwave irradiation time in the microwave drying step is irradiated for 3 minutes to 5 minutes.

In addition, the vermiculite board manufacturing apparatus of the present invention, the pulverized vermiculite powder is accommodated, the vermiculite transfer container is connected to the cylinder rod of the front and rear true cylinder on one side and the board transfer port on the other side; A guide plate on which the vermiculite transporting container is seated, guided by movement, and a hole is formed in the inner surface thereof; An upper plate positioned at an upper side of a hole through the inner surface of the guide plate, a lower plate positioned at a lower side of the hole and corresponding to the upper plate, and a support for vertically connecting the upper plate and the lower plate; A crimping lift lowering cylinder corresponding to the hole of the guide plate and coupled to the upper plate, and a crimping plate connected to a lower portion of the crimping lift lowering cylinder and having a crimping plate at a lower end thereof; A board forming container positioned at a lower end of the guide plate hole and having a seating plate therein; A lifting container lifting cylinder configured to lift and lower a seating plate provided in the board molding container, and a support plate supporting a lower part of the board molding container; A heater positioned below the support plate; The microwave generator is provided on an upper surface of the pressing plate of the compactor to emit microwaves and to irradiate the inside of the board molding container.

The pressing plate provided at the bottom of the pressing machine is made of Teflon, a strong plastic material having a low dielectric constant.

In addition, the inner surface of the board molding vessel is formed with a microwave quenching portion for extinguishing the microwaves irradiated through the microwave generator without being discharged to the outside, the microwave quenching portion and the board forming vessel and the seating plate The groove is formed in the inner surface of the recess.

In the present invention, when manufacturing the vermiculite board using vermiculite, the pressure of the pressurizer as well as heating by the heater to dry the surface of the vermiculite board, and again irradiating microwave to the vermiculite board to remove moisture in the vermiculite board Since the inside of the board is dried, the heating time for the vermiculite board can be greatly shortened, thereby solving the problem of workability and productivity deterioration according to the heating time, and greatly reducing the cost burden due to the longer heating time. It greatly improves the durability of vermiculite board.

1 is a process chart showing a process of the present invention vermiculite board manufacturing method.
2 and 3 is a block diagram showing the configuration of the vermiculite board manufacturing apparatus of the present invention.
Figure 4 is a block diagram of a state in which the vermiculite powder is transferred to the lower portion of the compactor by the present invention vermiculite board manufacturing apparatus.
5 is a block diagram showing a state in which the vermiculite transfer container, which has been transferred to the presser side by the vermiculite board manufacturing apparatus of the present invention, is moved to its original position.
Figure 6 is a process chart showing the forming of vermiculite board by compressing the vermiculite powder by the compactor of the vermiculite board manufacturing apparatus of the present invention.
Figure 7 is a block diagram of a state in which the pressurizer is elevated after the vermiculite board is molded by the present inventors vermiculite board manufacturing apparatus.
8 is a configuration diagram showing a continuous process of the present invention vermiculite board manufacturing apparatus.
9 is a configuration diagram showing a main portion of the vermiculite board manufacturing apparatus of the present invention.

Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, the term or word used in the present specification and claims is based on the principle that the inventor can appropriately define the concept of the term in order to best describe the invention of his or her own. It should be interpreted as meanings and concepts corresponding to the technical idea of

As shown in FIG. 1, the present invention provides a vermiculite board, which is a vermiculite board for preparing a vermiculite board by compressing and heating the vermiculite powder into a board molding container and compressing and heating the vermiculite powder contained in a board molding container in which the vermiculite powder is accommodated. The method relates to a manufacturing method, which presses the vermiculite powder with a pressurizer and simultaneously heats the surface of the vermiculite board formed by pressing the pressurized pressurizer with a heater at a temperature of 250 ° C. to 350 ° C. for 2 minutes to 5 minutes (S1). And, the microwave drying step (S2) for drying the inside of the vermiculite board by pressing the pressurizer and simultaneously heating the heater to irradiate the microwave (microwave) on the surface of the vermiculite board to remove moisture from the vermiculite board. It is made to include more.

The microwave irradiation time in the microwave drying step (S2) is preferably irradiated for 3 minutes to 5 minutes.

The reason for heating the vermiculite board which is formed by pressing the heater with the press for 2 to 5 minutes with 250 ° C to 350 ° C heat is that if the temperature is greater than 350 ° C, the surface of the vermiculite board is burned and the temperature is lower than 250 ° C. This is because the dryness on the surface of the vermiculite board is inferior.

Accordingly, the problem caused by heating the vermiculite board for 15 minutes to 90 minutes with a heater heat of 250 ℃ to 350 ℃ during the manufacture of conventional vermiculite board is solved.

In other words, conventionally, since the vermiculite board is dried only by the heater heat without irradiating the microwave with the vermiculite board as in the present invention, 15 minutes in the temperature range of 250 ° C to 350 ° C to dry the interior of the vermiculite board. After heating for 90 minutes at, thus causing the problem of burning the surface of the vermiculite board, another problem of reworking the surface of the vermiculite board caused a problem of greatly reduced productivity and workability.

However, the present invention, even if the heat of the heater by heating the microwave to the vermiculite board for 2 to 5 minutes at a temperature of 250 ℃ to 350 ℃ for 2 minutes to 5 minutes as well as the surface of the vermiculite board is dried to the interior of the vermiculite board Can solve the problem.

That is, in the present invention, the surface of the vermiculite board pressed and formed by a compactor is dried by heating at a temperature of 250 ° C. to 350 ° C. for 2 to 5 minutes using a heater, and the interior of the vermiculite board is dried using microwaves. As a result, the surface of the vermiculite board as well as the internal drying can be easily made, and the heating time of the heater and the heating temperature of the heater can be greatly reduced, thereby reducing the cost burden such as electricity bills, and the productivity by shortening the drying time of the vermiculite board. And workability can be greatly improved.

The present inventors vermiculite board manufacturing apparatus, as shown in Figures 2 and 3 vermiculite transfer container 10 for transferring the vermiculite powder 11, guide plate 20, the support 30, the vermiculite transfer container 10 Compressor 40 for compressing the vermiculite powder conveyed by the), the board forming vessel 50, the molding vessel lifting cylinder 60, the heater 70 and the microwave generator (80).

The vermiculite transfer container 10, the pulverized vermiculite powder 11 is accommodated and the cylinder rod 13 of the front and rear true cylinder 12 is connected to one side and the board transfer port 14 is connected to the other side, the vermiculite A hopper 15 is further provided to accommodate the vermiculite powder 11 into the transfer container 10.

Accordingly, when the vermiculite powder is introduced into the hopper 15, the vermiculite powder is guided by the hopper 15 and accommodated in the vermiculite transport container 10.

When the vermiculite powder 11 is accommodated in the vermiculite transport container 10 as described above, the vermiculite transport container 10 is transferred to the support 30 by the operation of the forward and backward cylinder 12.

At this time, the vermiculite transfer container 10 transferred to the support 30 side is made of a cylindrical shape, both the upper and lower openings, the lower portion is guide plate 20 to guide the movement of the vermiculite transfer container 10 The vermiculite powder 11 contained in the vermiculite transport container 10 is safely transported to the support 30 while the vermiculite transport container 10 is transported to the support 30.

The guide plate 20, the vermiculite transfer container 10 is seated and guided movement is made of a hole 21 through the inner surface.

In addition, the support 30 is located on the upper plate 31 and the lower side of the hole 21 located in the upper side of the hole 21 through the inner surface of the guide plate 20 and the upper plate The lower plate 32 corresponding to the 31 and the upper plate 31 and the lower plate 32 is configured by vertically connecting.

 The lifting vessel lowering cylinder 60 includes a lifting pin 61 for lifting and lowering the seating plate 51 provided inside the board molding container 50, and the lower portion of the board molding container 50. Support plate 62 for supporting the is provided.

As shown in FIG. 3, the lifting container 61 is lifted by operating the lifting container lifting cylinder 60 to lift the seat plate 51 inside the board molding container 50. The lifted seating plate 51 is located in the hole 21 of the guide plate 20.

As shown in FIG. 4, when the vermiculite transport container 10 is transferred to the support 30 by operating the forward and backward cylinder 12, the vermiculite transport container 10 is moved to the hole 21 side of the guide plate 20. The vermiculite powder 11 is positioned on the seating plate 51 of the board forming container 50 located at the lower side of the vermiculite transport container 10, which is transported and stopped and the lower part is opened.

In addition, when the vermiculite powder 11 is located on the seating plate 51 of the board molding container 50, as shown in FIG. 5, the raising and lowering pin 61 of the lifting container lowering cylinder 60 is lowered. The descent of the seating plate 51 is made so that the vermiculite powder 11 supported by the seating plate 51 is safely accommodated inside the board forming container 50.

That is, when the vermiculite powder is positioned on the seating plate 51 of the board molding container 50, the lifting pin 61 of the lifting container lowering cylinder 60 supporting the seating plate 51 lifts and lowers the molding container. As the lowering operation of the cylinder 60 is lowered and the seating plate 51 is lowered to the lower portion of the molding container 50, the vermiculite powder 11 is accommodated in the board molding container 50.

At this time, since the support plate 62 supports the lower portion of the board forming container 50, the seating plate 51 lowered by the lowering operation of the lifting pin 61 is the support plate 62. The vermiculite powder 11 is supported by and thus accommodated in the board forming container 50 in a state where the lower part is supported by the seating plate 51.

As such, when the vermiculite powder 11 is completed within the board molding container 50, the vermiculite transport container 10 which has conveyed the vermiculite powder 11 again returns to the original position of the hopper 15. Return to the lower side.

As shown in FIG. 6, the pressurizer 40 is lowered to the upper side of the vermiculite powder 11 and introduced into the board molding container 50 while the vermiculite powder 11 received inside the board molding container 50. Press to form the vermiculite board (100).

The presser 40 is connected to the hole 21 of the guide plate 20 and coupled to the presser lift cylinder 41 coupled to the upper plate 31 and to the lower portion of the presser lift cylinder 41. And it is made of a pressing plate 42 at the bottom.

Therefore, when the pressure lowering cylinder 41 of the pressure reducer 40 is lowered, the pressure plate 42 connected to the lower portion of the pressure lowering cylinder 41 is lowered, and the pressure plate 42 is the board molding container 50. The vermiculite board 100 is molded by pressing the vermiculite powder 11 accommodated in the board molding container 50 into the interior of the mold.

At this time, the heating on the surface of the vermiculite board 100 is progressed by the heater 70 positioned below the support plate 62, and the surface of the vermiculite board 100 is dried.

In addition, after the surface drying of the vermiculite board 100 is performed by the heater 70, the microwave is generated by the microwave generator 80 provided on the upper surface of the pressing plate 42 of the pressing machine 40. The internal drying of the vermiculite board 100 proceeds by releasing microwaves into the vermiculite board 100 formed inside the board forming container 50 by discharging.

As the microwave emitted from the microwave generator 80 is irradiated to the inside of the vermiculite board, drying of the vermiculite board proceeds, thereby greatly improving the durability of the vermiculite board, and the surface of the vermiculite board 100 is heated by the heater 70. The heating time of the heater and the internal drying of the vermiculite board 100 are made of microwaves, so that the heating time and the heating temperature of the heater can be greatly reduced.

The pressing plate 42 provided at the lower end of the pressing unit 40 of the present invention is preferably made of Teflon, a strong plastic material having a low dielectric constant.

This is, the vermiculite board 100 in which the microwaves emitted from the microwave generator 80 are transmitted through the pressing plate 42 to be molded in the board molding container 50 and positioned inside the board molding container 50. This is because it is to be easily irradiated to, for example, when the pressing plate 42 is formed of a metal material, because the microwave is not irradiated to the vermiculite board side is reflected by the pressing plate of the metal material.

On the inner surface of the board molding container 50, a microwave dissipation part 52 is further formed to allow the microwaves to be extinguished without being emitted to the outside through the microwave generator 80.

Accordingly, when microwaves are irradiated toward the board forming container 50 in which the vermiculite board 100 is accommodated for drying the inside of the vermiculite board 100, the microwave is prevented from being released to the outside of the board forming container 50. The microwave drying the inside of the vermiculite board 100 is to be extinguished as it is through the microwave dissipation unit 52 formed on the inner surface of the board forming container 50.

At this time, the microwave dissipation unit 52 is formed of grooves formed in the recesses on the inner surface of the board forming container 50 and the seating plate 51 by the microwave dissipation unit 52 made of vermiculite board ( The microwave irradiated to 100) naturally disappears.

As such, when the molding of the vermiculite board 100 is completed, as shown in FIG. 7, the pressing plate lowering cylinder 41 of the pressing machine 40 is raised to press the plate 42 connected to the lower portion of the pressing plate lowering cylinder 41. After raising), the lifting vessel lifting cylinder 60 is operated to elevate the lowered raising and lowering pin 61, whereby the seating plate 51 is elevated, the inside of the board molding container 50 The vermiculite board 100, which is molded at the lower end and seated on the seating plate 51, is elevated and passed through the hole 21 to be positioned at the top of the guide plate 20.

As shown in FIG. 9, the lifting pin 61 has a first hole 70a through the heater 70 and a second hole through the support plate 62 for supporting the seating plate 51. It is lifted and lowered to the lower side of the seating plate 51 through 62a.

In addition, the vermiculite board 100 located on the upper portion of the guide plate 20, the vermiculite transfer container 10 is again centered on the hole 21 to form another vermiculite board as shown in FIG. When the transfer to the support 30 provided in the side, the board transfer port 14 provided on the other side of the vermiculite transfer container 10 pushes the vermiculite board 100 is elevated to the upper side of the hole 21 is molded The completed vermiculite board 100 is discharged and the molding of another vermiculite board proceeds by the same operation as described above.

As described above, the present invention has been described with reference to a preferred embodiment of the present invention as being capable of various modifications, but the present invention is not limited to such an embodiment, and the embodiment is simply applied in combination with the known art. Together with the claims and the detailed description of the present invention it will be seen that the technology that can be used by those skilled in the art that the present invention belongs to be included in the technical scope of the present invention.

S1: compression drying step S2: microwave drying step
10: vermiculite transport container 11: vermiculite powder
12: front and rear cylinders 13: cylinder rod
14: board transfer hole 20: guide plate
21: hole 30: support
31: upper plate 32: lower plate
40: presser 41: presser lowering cylinder
42: crimping plate 50: board molding container
51: seating plate 52: microwave extinction
60: lifting container lifting cylinder 61: lifting pin
62: support plate 70: heater
80: microwave generator
100: vermiculite board

Claims (6)

In the method of manufacturing a vermiculite board, which contains pulverized vermiculite powder into a board molding container and compresses and heats the vermiculite powder contained in a board molding container in which the vermiculite powder is accommodated.
Compressing and drying the vermiculite powder with a pressurizer and simultaneously drying the surface of the vermiculite board formed by pressing the pressurized pressurizer with a heater at a temperature of 250 ° C. to 350 ° C. for 2 minutes to 5 minutes;
Microwave drying step (S2) for drying the interior of the vermiculite board by removing microwaves from the vermiculite board by irradiating the microwave (microwave) to the surface of the vermiculite board, which is heated by a heater and simultaneously heated by a compactor, further includes a microwave drying step (S2). Vermiculite board manufacturing method characterized in that it is made.
The method according to claim 1,
The microwave irradiation time in the microwave drying step (S2) is a vermiculite board manufacturing method, characterized in that for 3 minutes to 5 minutes to irradiate.
A crushed vermiculite powder 11 is accommodated and the vermiculite transfer container 10 is connected to the cylinder rod 13 of the forward and backward cylinder 12 on one side and the board transfer port 14 is connected to the other side;
A guide plate 20 in which the vermiculite transporting container 10 is seated and guided to move, and a hole 21 is formed in the inner surface thereof;
An upper plate 31 positioned on the upper side of the hole 21 through the inner surface of the guide plate 20 and a lower plate positioned on the lower side of the hole 21 and corresponding to the upper plate 31; 32 and a support 30 for vertically connecting the upper plate 31 and the lower plate 32;
Compression lift cylinder 41 corresponding to the hole 21 of the guide plate 20 and coupled to the upper plate 31 and connected to the lower portion of the compression lift cylinder 41 and the compression plate 42 at the bottom Compressor 40 is provided with;
A board forming container 50 positioned at a lower end of the hole 21 of the guide plate 20 and having a seating plate 51 therein;
A lifting pin 61 for lifting and lowering the seating plate 51 provided in the board molding container 50 is configured, and a support plate 62 supporting the lower portion of the board molding container 50 is provided. Molded container lifting cylinder 60;
A heater 70 positioned below the support plate 62;
The microwave is provided on the upper surface of the pressing plate 42 of the compactor 40 to emit microwaves to irradiate the microwaves into the vermiculite board 100 formed inside the board molding container 50. Vermiculite board manufacturing apparatus characterized in that it comprises a generator (80).
The method according to claim 3,
Pressing plate 42 provided on the lower end of the compactor 40 is a vermiculite board manufacturing apparatus, characterized in that formed of a strong plastic material having a low dielectric constant Teflon.
The method according to claim 3,
Vermiculite board, characterized in that the inner surface of the board forming container 50 is further formed with a microwave dissipation unit 52 to extinguish the microwave irradiated through the microwave generator 80 without being discharged to the outside Manufacturing equipment.
The method according to claim 3,
The microwave dissipation unit 52 is a vermiculite board manufacturing apparatus, characterized in that consisting of grooves formed in the inner surface of the board forming container 50 and the seating plate (51).

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