KR20160093284A - Apparatus and method for integratedly drying and carbonizing wood using microwave - Google Patents

Abstract

The present invention relates to an integrated apparatus for drying and carbonizing wood using a microwave, smoothly preventing the wood from being cracked or twisted. The apparatus comprises: a chamber; a drying and carbonizing unit; an air circulation fan enabling air inside the chamber to circulate; a vacuum pump installed outside the chamber; and a microwave generation unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an integrated wood drying and carbonizing apparatus and method using a microwave,

More particularly, the present invention relates to a wood drying and carbonizing apparatus, and more particularly, to a wood drying and carbonizing apparatus, in which drying and carbonization of wood are collectively performed so that carbonization of wood is very easy, The present invention relates to an integrated wood drying and carbonizing apparatus and method using a microwave, which makes it possible to smoothly prevent wood from being twisted or twisted due to a difference in water content between the inside and the outside of the wood and a sudden change in the surrounding environment.

In general, wood has a relatively high moisture content at logging. If you make a product using the same timber as the timber, the product will be deformed over time. Thus, timber that has been cut requires an appropriate drying process.

Drying methods of wood include natural drying and hot air drying. Natural drying is a method in which wood is piled up in a drying area and drying is carried out using atmospheric temperature, humidity and wind. There is a drawback that drying time is long and a wide drying area is needed and drying is not possible below the Ki-Gun moisture content. On the other hand, the hot-air drying is a method of drying by adjusting the drying conditions such as the temperature, humidity and wind speed of the drying chamber artificially, the drying time is relatively short,

When wood is subjected to a drying process, water content decreases drastically and water absorption becomes low, and hemicellulose, which is food for bacteria among the constituents of wood, is decomposed, making it difficult for colostrum to live. Thus, drying of the wood can greatly improve the durability of the wood. Recently, timber has been dried and used for various purposes.

As a conventional apparatus for drying wood, for example, an apparatus in which an electric heater is directly installed in a drying chamber to heat internal air, or air heated through a hot air blower that generates heat from a combustion apparatus is introduced into a drying chamber A device for injecting the superheated steam into the drying chamber, an apparatus for injecting the superheated steam into the drying chamber, an apparatus for injecting the heated medium into the drying chamber by indirectly heating the air in the drying chamber after heating the heating medium in the combustion chamber, And a device for heating by high frequency.

The partially dried wood is subjected to various heat treatments for use in building interior and exterior materials, flooring and the like. One such heat-treated wood is carbonized carbonized wood, which undergoes a heat treatment at a high temperature near the carbonization point of the wood in a vacuum to transform the properties of the wood itself, preventing ignition of the wood It is relatively light and hard carbonaceous without preservative treatment.

That is, when the wood is subjected to a process of carbonization with high temperature, the water content is drastically lowered, the water absorption capacity is lowered, and the hemicellulose, which is the food of the bacteria among the components constituting the wood, is decomposed, making it difficult for the spoilage bacteria to live. As described above, the carbonization treatment can significantly improve the durability of the wood. Recently, wood is carbonized and used for various purposes.

Conventional apparatuses for carbonizing wood include, for example, an apparatus in which an electric heater is directly installed in a heat treatment chamber to heat internal air, or air heated through a hot air blower that generates heat from a combustion apparatus is introduced into a heat treatment chamber A device for injecting the superheated steam into the heat treatment chamber, an apparatus for injecting the superheated steam into the heat treatment chamber, an apparatus for injecting the superheated steam into the heat treatment chamber, a device for heating the heating medium in the combustion apparatus and then injecting the heating medium into the heat treatment chamber.

However, the above-described conventional techniques have the following problems.

Conventionally, in order to dry or carbonize wood, the wood is dried in a separate wood drying apparatus, and then the dried wood is transferred to a wood carbonizing apparatus to perform carbonization. Thus, the carbonization of wood is very cumbersome and the productivity of carbon black is considerably lowered there was.

In addition, the wood which is dried by the conventional wood drying apparatus can not be dried in the same or the same moisture content as the inside and the outside of the wood. Especially, the inside of the wood can not be dried smoothly, Or twisted or warped.

Particularly, in the case of a diagonal wood having a relatively large diameter or a large diameter, even if it is heated at a high temperature for a long time, the inside of the diagonal wood is not dried sufficiently,

Open Patent No. 1996-0024197 "Wood drying method and drying apparatus" (July, 20, 1996)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

It is an object of the present invention to provide a method and apparatus for drying and carbonizing wood in a simple manner so that the carbonization of wood can be carried out very easily and the inside and the outside of the wood are dried substantially uniformly, The present invention provides an integrated wood drying and carbonizing apparatus and method using a microwave, which is capable of smoothly preventing the wood from being twisted or twisted due to a sudden change in environment, and allowing the diagonal wood to be dried easily.

It is another object of the present invention to provide a monolithic wood drying and carbonizing apparatus using a microwave for cooling the magnetron so that the life of the magnetron is shortened due to the heat of the chamber and the magnetron itself.

In order to achieve the above object, a "integrated wood drying and carbonizing apparatus using microwave" according to the present invention is a drying and carbonizing apparatus using microwave, which comprises a door on the front surface, a bogie having a plurality of through holes in the center, A chamber enclosing the wood in a sealed state; An inner circulation pipe installed inside the chamber and circulating the oil therein, a connection pipe connected to form a closed circuit in the inner circulation pipe and installed outside the chamber, and an oil And a heater for heating the oil stored in the oil tank, wherein the temperature of the interior of the chamber is adjusted from the drying temperature of the wood to the carbonization temperature of the wood A drying and carbonizing treatment unit for generating heat up to a predetermined temperature; An air circulation fan installed inside the chamber and circulating air inside the chamber; A vacuum pump installed outside the chamber and connected to the chamber through a pipe to discharge air inside the chamber to the outside to form a vacuum inside the chamber; A magnetron disposed at a lower portion of the chamber corresponding to the through hole and connected to the power supply to generate microwaves while being supplied with power, and a magnetron connected at one end to the magnetron, And a microwave generating unit having a wave guide penetrating the chamber and corresponding to a lower portion of the through hole and irradiating the microwave to the wood to dry the inside of the wood; .

Further, the microwave generating unit of the "integrated wood drying and carbonizing apparatus using microwave" according to the present invention further comprises a tempered glass-made heat shield embedded in the inner surface of the chamber so as to be in close contact with the front end of the wave guide, The wood drying and carbonizing apparatus includes a cooling unit installed in the chamber and cooling the inside of the chamber; And further comprising:

The microwave generating unit of the "integrated wood drying and carbonizing apparatus using microwave" according to the present invention includes a closed case installed on a lower surface of the chamber to enclose and enclose the magnetron and the wave guide, A water cooler connected to one end and the other end of the cooling pipe so as to allow the cooling water to flow therethrough and to cool the water contained therein; and a water cooler installed on the pipe of the cooling pipe outside the closed case, A water pump, and the like.

In order to achieve the above object, the present invention provides a method for drying and carbonizing an integrated wood using microwave, comprising the steps of: mounting a wood in a chamber to seal the chamber; A vacuum forming step of discharging air inside the chamber to the outside through a vacuum pump when the mounting of the wood is completed, thereby forming a vacuum inside the chamber; When the vacuum is formed inside the chamber, the air circulating fan inside the chamber is operated while operating the heater and the oil pump outside the chamber, so that the high-temperature oil A wood outer surface drying step of indirectly heating the interior of the chamber by circulation to dry the outer surface of the wood; Drying the interior of the wood by stopping the operation of the heater and the oil pump and operating the microwave generator to irradiate the interior of the chamber with the microwave toward the interior of the chamber; And repeating the step of drying the outer surface of the wood and the step of drying the inner surface of the wood while the temperature of the oil is changed while the air circulating fan is continuously operated so that the wood is dried or carbonized after drying; .

Industrial Applicability As described above, the present invention is characterized in that drying and carbonization of wood are carried out collectively, so that the carbonization treatment of the wood can be carried out very easily, the productivity of the carbonized wood is remarkably improved and the inside and the outside of the wood are almost uniform The wood is smoothly prevented from being twisted or twisted due to a difference in the water content between the inside and the outside of the wood and a sudden change in the surrounding environment at the initial and late stages of drying and thus the production of high quality dried wood and carbonized wood becomes possible, And diagonal timber having a large diameter are easily dried inside.

Further, the present invention has the effect of cooling the magnetron to prevent shortening of service life or failure of the magnetron due to heat of the chamber and heat of the magnetron itself.

1 is a schematic front cross-sectional view of a wood drying and carbonizing apparatus according to the present invention,
FIG. 2 is a schematic view of a schematic structure of a wood drying and carbonizing apparatus according to the present invention,
3 is an enlarged view of the main part of Fig. 1,
4 is a schematic side cross-sectional view of a wood drying and carbonizing apparatus according to the present invention,
FIG. 5 is a schematic front sectional view showing a wood drying and carbonizing apparatus according to another embodiment of the present invention, FIG.
6 is a diagram illustrating a method of drying and carbonizing wood according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

FIG. 1 is a schematic front sectional view of a wood drying and carbonizing apparatus according to the present invention, FIG. 2 is a schematic configuration of a main part of a wood drying and carbonizing apparatus according to the present invention, FIG. 3 is an enlarged view of FIG. 1, 4 is a schematic side cross-sectional view of a wood drying and carbonization apparatus according to the present invention.

As shown therein, the wood drying and carbonizing apparatus according to the present invention includes a hollow cylindrical chamber 10, a drying and carbonization treatment unit 20 installed in the chamber 10, A vacuum pump 40 connected to the chamber 10 and a microwave generator 50 installed at a lower portion of the chamber 10.

The chamber 10 is provided in the shape of a hollow cylindrical pressure vessel and has a door 12 on the front side and a bogie 12 having a plurality of through holes 13 in the center thereof. And serves to enclose the wood W in a stacked state in a sealed state.

The door 11 opens and closes the front surface of the chamber 10 and the door 11 is opened after the door 11 is opened and the wood is introduced into the chamber 10, Thereby closing the chamber 10.

The bogie 12 horizontally moves along the rails provided on the bottom surface of the chamber 10 and transfers a large amount of wood W from the outside to the inside of the chamber 10 or from the inside to the outside of the chamber 10, So that it can be easily transported.

The through hole 13 is formed in the center of the bogie 12 so that microwaves generated in the microwave generating unit 50 are transmitted to the bogie 12 through the through- To be irradiated onto the wood (W) loaded on the truck (12).

It is preferable that the chamber 10 is coated with a reflective material for reflecting microwaves on the inner surface of the chamber 10 because the microwaves irradiated by the microwave generation unit 50 from the lower side to the upper side of the chamber 10 pass through the chamber 10 so as to be injected into the wood W again. Here, the reflective material may be, for example, aluminum powder or an aluminum foil, and the aluminum powder is applied in combination with the heat-resistant adhesive and the aluminum foil is adhered to the inner surface of the chamber 10 with a heat resistant adhesive.

The drying and carbonization treatment unit 20 is installed in the chamber 10 to heat the interior of the chamber 10 through the heated oil from the drying temperature of the wood W to the carbonization temperature of the wood W To dry the wood (W) or carbonize the wood (W) after drying. Typically, the drying temperature of the wood is about 60 to 120 degrees Celsius, and the carbonization temperature of the wood is about 180 to 230 degrees. Therefore, the drying and carbonization treatment unit 20 can adjust the temperature of the inside of the chamber 10 from 60 to 250 degrees Celsius. Here, oil is commonly known to boil at 200 to 350 degrees Celsius.

The control of drying and carbonization temperature inside the chamber 10 may be performed through temperature information inside the chamber 10 transmitted from a thermometer T for sensing the temperature inside the chamber 10, And a controller (C) for controlling the operation of the processing unit (20).

The drying and carbonization treatment unit 20 having the above functions is provided with an internal circulation pipe 21 installed in the chamber 10 and circulating oil therein, An oil pump 23 installed on a pipe of the connection pipe 22 and connected to a pipe of the connection pipe 22 and connected to the connection pipe 22, An oil tank 24 for storing oil and a heater 25 for heating the oil stored in the oil tank 24.

The internal circulation pipe 21 is provided in a zigzag shape corresponding to the wood W on both sides of the chamber 10 so that the high temperature oil is circulated inside the chamber 10, It serves to heat the air.

The connection pipe 22 is connected with the inner circulation pipe 21 to the outside of the chamber 10 to form a closed circuit and provides a place where various equipment including the oil pump 23 is installed . The oil pump 23 circulates the oil stored in the oil tank 24 through the connection pipe 22 and the internal circulation pipe 21.

The oil tank 24 serves to provide a place where the oil circulated through the connection pipe 22 and the internal circulation pipe 21 is stored and to provide a place where the oil is heated by the heater 25 . The heater 25 serves to heat the oil stored in the oil tank 24 by heating the oil tank 24 by a flame or electric heat.

The drying and carbonization treatment unit 20 circulates the high temperature oil through the internal circulation pipe 21 to heat the interior of the chamber 10 so that the wood inside the chamber 10 flows into the internal circulation pipe 21, whereby the problems such as heat generation of the wood caused by the direct heating of the wood by the heater during the drying and carbonization of the wood are solved properly.

The drying and carbonization treatment unit 20 further includes an oil cooler 26 installed on the pipe of the connection pipe 22. The oil cooler 26 serves to cool the oil passing through the connection pipe 22 through the cool air. The oil cooled by the oil cooler 26 is circulated through the internal circulation pipe 21 so that the interior of the chamber 10 is cooled so that the interior of the chamber 10 is dried or carbonized So that the finished wood W can be cooled quickly.

The air circulation fan 30 is installed inside the chamber 10 and circulates the air inside the chamber 10 so that the heat generated by the drying and carbonization processing unit 20 is transferred to the wood W So that it can be smoothly and uniformly transmitted. The plurality of air circulation fans 30 are installed in the chamber 10 as a whole.

The vacuum pump 40 is installed outside the chamber 10 and is connected to the chamber 10 by a pipe so as to discharge the air inside the chamber 10 to the outside, To form a vacuum inside the vacuum chamber.

That is, the vacuum pump 40 functions to discharge the unnecessary gas inside the chamber 10 to the outside, and to make the inside of the chamber 10 vacuum when necessary. When the interior of the chamber 10 is evacuated as described above, when the wood W is heated by the drying and carbonizing unit 20, moisture inside the wood W is relatively quickly and easily discharged to the outside And further, the ignition of the wood due to the high heat is prevented during the carbonization treatment of the wood.

The microwave generator 50 is installed at a lower portion of the chamber 10 and radiates a microwave from the lower portion of the chamber 10 to the inside thereof to dry the interior of the wood W . Particularly, diagonal timber having a relatively large diameter or a large diameter is easily dried by microwave.

The microwave generating unit 50 has a power supply 51 installed at a lower portion of the chamber 10 and a plurality of microwave generating units 50 corresponding to the through holes 13 at a lower portion of the chamber 10 A magnetron 52 for generating microwaves while being connected to the power supply 51 so that one end thereof is connected to the magnetron 52 and the other end is connected to the through hole 13 through the chamber 10, And a waveguide 53 corresponding to the lower portion of the waveguide.

The microwave generating unit 50 generates a microwave by the magnetron 52 by supplying power through the power supply 51 and the microwave generated by the microwave generates the through hole 13 through the wave guide 53 And is irradiated to the lower portion of the wood W mounted on the truck 12 to heat the interior of the wood W by microwaves to dry the inside of the wood.

In addition, the micro-generator 50 heats the moisture in the wood through microwaves, thereby removing insects and germs remaining in the wood, thereby easily sterilizing the wood as a whole.

The power supply 51 is a known power distributor capable of simultaneously supplying a constant power to the plurality of magnetrons 52. The magnetron 52 is a known electronic component that generates microwaves by supplying power. The waveguide 53 is a well-known means for moving microwaves generated by the magnetron 52.

The microwave generating unit 50 further includes a heat shield 54 made of tempered glass and embedded in the inner surface of the chamber 10 so as to be in close contact with the front end of the wave guide 53. The heat window 54 passes through the waveguide 53 and passes through the waveguide 53 while heat of high temperature generated by the drying and carbonizing unit 20 into the chamber 10 passes through the waveguide 53. To prevent damage or failure of the magnetron (52) due to heat by intercepting heat to prevent the magnetron (52) from being transmitted to the magnetron (52).

The wood drying and carbonizing apparatus of the present invention is constructed such that the outer surface of the wood W is dried or carbonized by the drying and carbonizing treatment unit 20 and the inside of the wood W is dried by the microwave generating unit 50 Thereby preventing the wood from being twisted or distorted during drying and carbonization due to the difference in water content between the outer surface of the wood W and the inside of the wood W so that the dried wood or carbonized wood having excellent quality can be produced.

The microwave generating unit 50 includes a sealing case 55 installed on a lower surface of the chamber 10 to enclose and enclose the magnetron 52 and the waveguide 53, A water cooler 57 connected to one end and the other end of the cooling pipe 56 so as to allow the cooling water to flow and to cool the water contained in the cooling pipe 56, And a water pump (58) installed on the channel of the cooling pipe (56) for flowing the cooling water.

The enclosure 55 serves to enclose the magnetron 52 and the waveguide 53 to protect the magnetron 52 and the waveguide 53 and form a closed space around the magnetron 52 and the waveguide 53.

The cooling pipe 56 is a cooling water circulation pipe through which the water cooled by the water cooler 57 is circulated by the operation of the water pump 58. The cooling pipe 56 cools the inside of the enclosure 55 with cooling water, Thereby cooling the heat generated in the magnetron 52 itself, thereby significantly extending the service life of the magnetron 52.

Hereinafter, the operation of the present wood drying and carbonizing apparatus will be described. The door 11 is opened and the timber W in a green state is loaded on the truck 12 and mounted on the inside of the chamber 10 and then the door 11 is closed to close the chamber 10 . In this state, the vacuum pump 40 is operated to form a vacuum in the chamber 10.

In this state, the heater 25 and the oil pump 23 are operated to operate the air circulation fan 30 so that the internal circulation pipe 21 is heated by the flow of the high temperature oil, And the heated air is circulated in the chamber 10 by the air circulating fan 30 to dry the outer surface of the wood W.

When the outer surface of the wood is dried to some extent, the operation of the heater 25 and the oil pump 23 is stopped, the microwave is generated by driving the magnetron 52 through the power supply 51, Is introduced into the chamber 10 through the waveguide 53 and is irradiated to the lower surface of the wood through the through hole 13 so that the moisture inside the wood is heated by the microwave to heat the wood W ) Is dried.

When the moisture inside the wood W is heated and dried, the moisture is discharged to the outside of the wood. At this time, the driving of the magnetron 52 is stopped and the heater 25 and the oil pump 23 are operated again The moisture transferred to the outer surface of the wood is dried and removed.

In this manner, the heating device 25, the oil pump 23, and the magnetron 52 are alternately driven to dry the wood in the order of the outer surface, the inner surface, and the outer surface of the wood, And is dried with moisture content.

If the outer surface and the inside of the wood W are dried so as to have a water content substantially similar to that of the wood W, the heat, warping and deformation of the wood due to the difference in water content between the inside and outside of the wood, Resulting in a very good quality dry throat.

When the wood is dried at a desired moisture content, the oil is heated to a high temperature of 300 degrees or more through the heater 25, and the heated oil is circulated through the oil pump 23 to the inner circulation pipe 21, Thereby heating the air inside the chamber 10 to 300 degrees or higher.

The heated air at a high temperature is circulated in the chamber 10 by the air circulation fan 30 to reach the outer surface of the dried wood, whereby the outer surface of the wood is carbonized, Throat.

Thus, the present wood drying and carbonizing apparatus is a revolutionary invention capable of drying and carbonizing wood in a lump such as drying wood through high temperature oil or carbonizing dried wood as needed.

5 is a schematic front sectional view showing a wood drying and carbonizing apparatus according to another embodiment of the present invention.

The cooling unit 60 may be installed in the chamber 10 instead of the oil cooler 26 as shown in FIG. The cooling unit 60 includes a circulation pipe 61 having both ends connected to the chamber 10 and a cooling tower 62 and an air pump 63 installed on the pipe of the circulation pipe 61, And a water injector (64) installed in communication with the chamber (10).

The water injector 64 injects water into the chamber 10 after drying or carbonization of the wood is completed into the chamber 10 to vaporize the water and cool the air inside the chamber 10 .

In this way, when the water is vaporized by the jetting of the air by the water injector 64, the air pump 63 operates to cause the vaporized air in the chamber 10 to flow outside through the circulation pipe 61 The cooling water is cooled through the cooling tower 62, water is removed, and the water is injected into the chamber 10 to cool the inside of the chamber 10.

The cooling tower 62 is a well-known heat exchanger that cools the inside of the chamber 10 by bringing the hot air into direct contact with the outside air.

6 is a diagram illustrating a method of drying and carbonizing wood according to the present invention.

As shown therein, the method for drying and carbonizing wood according to the present invention comprises a wood loading step (S10) for loading wood in a chamber, a vacuum forming step (S20) for forming a vacuum inside the chamber, (S30) of drying the outer surface of the wood by circulating the inside of the chamber to the inside of the chamber, drying the interior of the wood through the microwave generating unit (S40), drying the inside and outside of the wood And an iterative execution step (S50) in which it is repeatedly performed alternately.

The step of mounting the wood (S10) is a step of sealing the drying chamber with the wood mounted on the inside of the chamber.

The vacuum forming step (S20) refers to a step of discharging the air inside the chamber to the outside through a vacuum pump to form a vacuum inside the drying chamber. This step is intended to make the subsequent drying of the wood more smoothly through the formation of a vacuum inside the chamber.

In step S30, when the vacuum is formed inside the chamber, the air circulation fan inside the chamber is operated while operating the heater and the oil pump outside the chamber, Indirectly heating the interior of the chamber by circulation of hot oil through an inner circulation tube, through which heat is applied to the outer surface of the wood to dry or carbonize the outer surface of the wood.

The drying step S40 is a step of stopping the operation of the heater and the oil pump and activating the microwave generator to irradiate the microwave toward the interior of the chamber from the lower part of the chamber. The inside of the wood is dried by heating the moisture inside the wood.

The repeating step S50 may be repeatedly carried out while the air circulation fan is continuously operated to change the temperature of the oil and repeatedly perform the drying step S30 and the drying step S40, Or carbonization after drying.

The drying of the outer surface and the drying of the inside of the wood are alternately performed continuously so that the moisture on the outer surface of the wood is removed so that the moisture inside the wood can smoothly flow to the outer surface of the wood. The wood is heated and dried, and this series of processes is repeated to evaporate moisture away from the inside of the wood.

Accordingly, through the repetition process, the wood is dried in a state that the inside and the outside of the wood have almost the same moisture content, and the moisture inside the wood is heated to remove insects and bacteria remaining in the inside of the wood, It is easily disinfected as a whole.

Further, after the drying of the wood is completed, the oil of higher temperature is circulated to the inside of the chamber to carbonize the outer surface of the wood at a high temperature.

As described above, the drying and carbonizing method of the present invention can dry and carbonize the wood by changing the temperature of the oil circulated to the inside of the chamber and raising the temperature of the oil. Thus, the drying and carbonization of the wood can be performed in a lump It is a breakthrough method.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

10: chamber
11: Door 12: Truck
13: Through hole
20: Drying and carbonization treatment section
21: internal circulation pipe 22: connection pipe
23: Oil pump 24: Oil tank
25: heater 26: oil cooler
30: Air circulation fan
40: Vacuum pump
50: microwave generator
51: power supply 52: magnetron
53: Waveguide 54:
55: sealed case 56: cooling pipe
57: water cooler 58: water pump
60: cooling section
61: Circulation piping 62: Cooling tower
63: air pump 64: water injector
W: Wood

Claims (4)

A bogie 12 having a door 11 on the front and a plurality of through holes 13 at its center and a chamber 10 for receiving the wooden in a state of being stacked on the bogie 12 )Wow;
An inner circulation pipe 21 installed inside the chamber 10 and circulating oil therein and a connection pipe 20 connected to form a closed circuit in the inner circulation pipe 21 and installed outside the chamber 10, An oil pump 23 installed on the pipe of the connection pipe 22 and an oil tank 24 installed on the pipe of the connection pipe 22 for storing oil, (20) for generating heat from the drying temperature of the wood to the carbonization temperature of the wood into the chamber (10), and a heater (25) for heating the oil stored in the chamber (24)
An air circulation fan 30 installed in the chamber 10 to circulate air inside the chamber 10;
The chamber 10 is connected to the chamber 10 by a pipe so as to communicate with the chamber 10 and discharges the air inside the chamber 10 to the outside so that a vacuum is formed inside the chamber 10 A pump 40;
A plurality of power supply units 51 provided at a lower portion of the chamber 10 and corresponding to the through holes 13 at a lower portion of the chamber 10 and connected to the power supply unit 51, And a waveguide 53 having one end connected to the magnetron 52 and the other end passing through the chamber 10 and corresponding to a lower portion of the through hole 13, (50) for drying the inside of the wood by irradiating the wood (50) on the wood (50);
Wherein the drying and carbonization apparatus comprises a microwave-based drying and carbonizing unit.
The method according to claim 1,
The microwave generating unit 50 includes:
Further comprising a tempered glass heat shield (54) embedded in the inner surface of the chamber (10) in close contact with the tip of the waveguide (53)
The wood drying and carbonizing apparatus comprises:
A cooling unit (60) installed in the chamber (10) and cooling the inside of the chamber (10); Further comprising the steps of: providing a microwave-assisted wood drying and carbonizing apparatus.
The method according to claim 1,
The microwave generating unit 50 includes:
A sealing case 55 installed on a lower surface of the chamber 10 to enclose and enclose the magnetron 52 and the waveguide 53,
A cooling pipe 56 stacked on the sealing case 55,
A water cooler 57 connected to one end and the other end of the cooling pipe 56 to cool the water contained therein,
A water pump (58) installed on the channel of the cooling pipe (56) outside the closed case (55) and for flowing the cooling water,
Further comprising the steps of: providing a microwave-assisted wood drying and carbonizing apparatus.
(S10) for closing the chamber with the wood mounted on the inside of the chamber;
A vacuum forming step (S20) of discharging air inside the chamber to the outside through a vacuum pump when the mounting of the wood is completed, thereby forming a vacuum inside the chamber;
When the vacuum is formed inside the chamber, the air circulating fan inside the chamber is operated while operating the heater and the oil pump outside the chamber, so that the high-temperature oil (S30) drying the outer surface of the wood by indirectly heating the interior of the chamber by circulation;
(S40) drying the interior of the wood by stopping the operation of the heater and the oil pump and operating the microwave generator to irradiate the interior of the chamber with the microwave toward the interior of the chamber to dry the inside of the wood;
(S50) repeatedly performing the drying of the outer surface of the wood and the drying of the inside of the wood while the temperature of the oil is changed while the air circulation fan is continuously operated, so that the wood is dried or carbonized after drying;
And drying and carbonizing the monolithic wood using the microwave.

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