WO2007083864A1

WO2007083864A1 - Dry method and the device that do for the sake of charcoal forming

Info

Publication number: WO2007083864A1
Application number: PCT/KR2006/001108
Authority: WO
Inventors: Jong-Han Jang
Original assignee: Jong-Han Jang
Priority date: 2005-12-13
Filing date: 2006-03-25
Publication date: 2007-07-26
Also published as: KR100581671B1

Abstract

A vacuum dry kiln is disclosed, which controls moisture of a raw lumber or prior to a receptacle or panel having various functions, processed by cutting a raw lumber is molded into charcoal. A vacuum dry device for charcoal forming, comprises a main body (20) provided with a plurality of far- infrared heaters (25) at a lower side of a loading area (21) which supplies a forming product or plate, having a ceiling (50) and a bottom (52), the ceiling (50) and the bottom (52) being rounded; a door switching device (40) opening and closing a door (41) provided with a door plate (42) at the front of the loading area (21); a loading case (70) moving from a rail (26) of the loading area (21), having a channel (76) and lateral nets (72), the channel (76) being connected with a plurality of pipes (71), and the lateral nets (72) being provided at both sides of the loading case (70); and a vacuum absorbing device (30) connected to an exhaust pipe (81) in a vacuum hole (31) formed at the lower side of the loading area (21), having a water ring type vacuum pump (33) which absorbs moisture and poroligenous liquor under the vacuum state and supplies the absorbed moisture and poroligenous liquor to an absorbing tank (34).

Description

DRY METHOD AND THE DEVICE THAT DO FOR THE SAKE

OF CHARCOAL FORMING

Technical Field

[1] The present invention relates to a vacuum dry kiln that controls moisture of a raw lumber or prior to a receptacle or panel having various functions, processed by cutting a raw lumber is molded into charcoal, and more particularly, to a dry method for charcoal forming and a dry device therefor, in which a raw lumber or various shaped receptacles or panels processed by cutting a raw lumber are put in a vacuum dry kiln and then processed into charcoal by exhausting moisture and poroligenous liquor contained in the raw lumber through a far-infrared heater without defect, and vacuum dry kilns are connected if necessary to enable vacuum dry of a long raw lumber. Background Art

[2] EFFICACY OF CHARCOAL

[3] A conventional method for manufacturing a forming product or a forming material using charcoal is disclosed in the Korean Patent Publication No. 2003-68097 (published on August 19, 2003) and the Korean Patent Publication No. 2003-58981 (published on July 7, 2003).

[4] In the Korean Patent Publication No. 2003-68097, separate process such as heat dry, surface polishing, and cooling is performed in a state that various impurities are injected into a charcoal powder which is a main material, thereby improving strength, having hygroscopic property, and preventing surface bleach from occurring.

[5] In particular, the Korean Patent Publication No. 2003-58981 discloses a method for manufacturing a carbon forming material in which charcoal, volatile powder, ash powder, and poroligenous liquor are mixed at a certain ratio to form a certain shape and then a coating layer is formed by heating and re-heating and mixture of charcoal and Teflon fluororesin solution on a fine powder, so as not to allow cooking stuffs to be stuck or burned.

[6] However, in the conventional method for manufacturing a forming product or a forming material, the forming product or the forming material is obtained by mixing impurities with a powdered charcoal, wherein the charcoal is made by powdering wood. Accordingly, the conventional method for manufacturing a forming product or a forming material has a drawback in that it fails to provide inherent functions of charcoal.

[7] Various examples of a conventionally processed article made of a raw lumber include wooden containers, vessels for memorial service of the deceased, and a rice chest. However, if the conventionally processed article is used as charcoal, various kinds of deformation such as distortion or split occur in the article while the article is varied to charcoal, thereby causing the article to be unavailable.

[8] Furthermore, the deformed article cannot be used by re-processing. Even though the wooden article is varied to charcoal, it has a drawback in that it cannot be used as a living article due to low strength.

[9] The wooden article has been manufactured such that various trees such as a zelkova tree, an ash tree, and a ginkgo tree are dried by natural seasoning and then rotated to process various articles such as wooden containers or vessels for memorial service of the deceased by using the blade of a knife, and the processed articles are finally dried and lacquered for use. However, it has not found that the wooden article had been processed as charcoal.

[10] In particular, after the wooden article is processed, if the processed article is put in a kiln to manufacture charcoal, a moisture content increases to cause a defect article which has split or fails to maintain a desired size or shape, whereby the defect article cannot be used.

[11] If the processed article is dried sufficiently under the natural condition, much time is required, and diurnal range occurs severely depending on season, whereby it is difficult to maintain moisture of a desired content. Disclosure of Invention

Technical Problem

[12] The present invention is devised to solve the problems in the background art as stated above. An object of the present invention is to provide a dry method for charcoal forming and a dry device therefor, in which a raw lumber or a processed wooden article having a vessel shape is supplied to a vacuum dry kiln and its moisture is maintained at a desired range.

[13] Another object of the present invention is to provide a dry method for charcoal forming and a dry device therefor, in which poroligenous liquor is separated from a vacuum dry kiln, which absorbs moisture and the poroligenous liquor, so as to recycle the poroligenous liquor.

[14] Another object of the present invention is to provide a dry method for charcoal forming and a dry device therefor, in which various articles, which are manufactured as charcoal as the articles are supplied to a kiln after their moisture is controlled, are provided to provide various functions of charcoal, such as emission of far-infrared rays, emission of anion, preservation and deodorization.

[ 15] Another object of the present invention is to provide a dry method for charcoal forming and a dry device therefor, in which a loading case is conveniently moved at both sides to easily load, supply and detach a processed article. [16] Another object of the present invention is to provide a dry method for charcoal forming and a dry device therefor, in which vacuum dry kilns are connected with each other through a connection device to provide a length of two times, thereby enabling work of a long raw lumber.

Technical Solution [17] The present invention is devised such that a wet log is vacuum-dried to contain moisture of 5%. [18] Also, charcoal is manufactured as it is in a vacuum dry kiln 10 by forming a forming material using a naturally dried raw lumber to have a constant thickness and naturally drying the forming material. [19] Everything that can be formed may be used as the raw lumber, and examples of the raw lumber include a zelkova tree, an ash tree, a ginkgo tree, a black oak, a pine tree, and a bamboo. [20] Forming material contains moisture of 25 to 38%. The raw lumber is processed such that the forming material is supplied to the vacuum dry kiln 10 to contain moisture of 5%, thereby preventing distortion and crack from occurring. [21] The vacuum dry kiln 10 is formed to have one or a plurality of loading areas 21 in a main body 20. The vacuum dry kiln 10 is essentially provided such that an insulating material 23 is inserted between an outer chamber metal plate 22 and an inner chamber metal plate 24 so as not to externally exhaust an internally generated heat source and the metal plates 22 and 24 have a thickness to maintain sufficient strength as the loading area 21 is maintained under the vacuum state. [22] A sealing portion 29 is extended to a portion for a door 41 where the outer chamber metal plate 22 meets the inner chamber metal plate 24, whereby a door plate 42 is sealed. [23] A ceiling 50 of the loading area 21 is internally rounded so that the ceiling 50 is easily moved to the lower side when it dews. A bottom 52 is also rounded so that dew is easily exhausted through a vacuum hole 31. [24] A plurality of far-infrared heaters 25 are provided at the lower side of the loading area 21 at constant intervals so that moisture and poroligenous liquor are exhausted out by applying a heat source to articles loaded in the loading area under the vacuum state. [25] A rail 26 is provided at the lower side of the loading area 21 so that the raw lumber is placed on a loading case 70 and the loading area is freely moved. A net 51 is provided below the rail 26 so that foreign materials such as soil or dust do not fall toward the bottom 52. [26] The loading case 70 is provided with channels 76 at both sides so as to successively connect pipes 71 at constant intervals. A moving belt wheel 74 is provided inside the channels 76 so that it is freely moved in the rail 26. Columns 74 are built at both sides of the loading case 70 at constant intervals so that net clamp belts 73 are provided at upper and lower sides of the columns 74 to assemble lateral nets 72.

[27] A frame 75 is provided outside a door switching device 40 provided at both sides of the dry kiln 10, so as to guide the moving belt wheel 74 of the loading case 70, which is detached from the rail 26, whereby the article is conveniently loaded and unloaded.

[28] Since a pipe 32 of a vacuum absorbing device 30 is connected with an exhaust pipe

81 in a vacuum hole 31 formed on the bottom of the loading area 21, the vacuum absorbing device 30 maintains the loading area 21 under the vacuum state through a vacuum pump 33 and absorbs moisture and poroligenous liquor.

[29] A valve 82 is provided in the exhaust pipe 81, and a valve 84 is also provided between the exhaust pip 81 and the pipe 32. Furthermore, an outlet 85 provided with a valve 83 at the front is connected at a portion where the exhaust pipe 81 meets the pipe 32, thereby constituting a poroligenous liquor exhaust device 80.

[30] A plurality of poroligenous liquor exhaust devices 80 are provided at the lower side of the main body 20 at constant intervals and are connected with the pipe 32. The outlet 85 is curved in "S" shape.

[31] The vacuum pump 33 is connected with an absorbing tank 34, and a connection pipe 35 is connected with lower and upper sides of the vacuum pump 33, so that the moisture moved and absorbed through the vacuum pump 33 is evaporated while the poroligenous liquor remains.

[32] The door switching device 40 which opens and closes the loading area 21 is provided with the door plate 42 outside the door 41 to form a fitting groove 43 at one side, wherein a screw axis 48 connected to an axis clamp 49 is fixed to the fitting groove 43 so that the screw axis 48 is fitted to and released from the fitting groove 43 through the clamp grips 47.

[33] A moving axis 46 connected to a bearing is connected with a reference axis 44 connected at the front of the main body 20 through a connection belt 45 at the center of the door plate 42, so that the door 41 is opened and closed.

[34] The vacuum dry kiln 10 is controlled by a control box which is not shown, and the main body 20 is fixed at a desired position by a plurality of legs 53 and is movable through a wheel 54.

[35] Although only one vacuum dry kiln 10 may be used, two vacuum dry kilns may be used if necessary (in case of a long raw lumber), wherein the two vacuum dry kilns are connected with each other through a connection device 60.

[36] The connection device 60 is provided with a connection body 61 provided between the clamp grips 47 after the door 41 of the vacuum dry kiln 10 is fully opened. The connection device 60 is provided with a sealing portion 62 and a connection projection 64 at both sides, and a connection groove 65 is formed at both sides of a connection member 63. Accordingly, the two vacuum dry kilns 10 and 10' can be connected with each other by fixing the connection device 60 to match the position of the clamp grips 47.

[37] According to the present invention as constructed above, in a state that the door 41 is opened through the door switching device 40 as shown in FIG. 6 to FIG. 9, a log containing much moisture may be supplied to the upper side of the pipe 71 of the loading case 70 without being cut, wherein the loading case 70 is provided at the upper side of the frame 75 as shown in FIG. 10. If a processed wooden container, an article having various purposes of use, a raw lumber or a plate is loaded into the loading case 70, the moving belt wheel 74 is guided by the rail 26 and then inserted to the loading area 21.

[38] If the door plate 42 is pushed after two loading cases 70 are inserted to the loading area 21 at both sides of the main body 20, the door plate 42 is rotated around the reference axis 44 and also rotated around the moving axis 46, so that the screw axis 48 is fixed to the fitting groove 43 of the door plate 42.

[39] If the screw axis 48 is fixed to the fitting groove 43, the clamp grips 47 are rotated so that the screw axis 48 is firmly fixed to the fitting groove 43, whereby the door 41 is fixed to the main body 20 in a single body.

[40] After the loading area 21 is sealed through the door switching device 40, a water ring type vacuum pump 33 is driven by the control box so that the loading area 21 is in the vacuum state, and at the same time a temperature of 14O⁰C to 15O⁰C is selected so that the far-infrared heater 25 is operated.

[41] Then, the water ring type vacuum pump 33 allows the loading area 21 to be in the vacuum state in the vacuum hole 31 through the pipe 32 and at the same time absorbs generated moisture.

[42] Since the loading area 21 is maintained under the vacuum state and at the same time is maintained at a temperature of 19O⁰C to 21O⁰C, moisture and poroligenous liquor are slowly exhausted from the loaded article. Although the moisture and the poroligenous liquor are exhausted to the exhaust pipe 81 through the vacuum hole 31, they are exhausted to the pipe 32 through the pipe 81 and then collected in the absorbing tank 34 if the valves 82 and 84 are opened.

[43] At this time, the water ring vacuum pump 33 has absorbing power in the range of -

20cm/Hg.

[44] If the vacuum state of the loading area 21 is maintained and six to eight days pass at a temperature of 19O⁰C to 21O⁰C starting from O⁰C, the article having various purposes of use or the plate, which contains moisture of about 38%, is dehydrated and the poroligenous liquor is exhausted, whereby moisture of about 5% is maintained.

[45] The moisture and the poroligenous liquor successively exhausted through the vacuum pump 33 are supplied to the absorbing tank 34, so that the moisture is mixed with the poroligenous liquor inside the absorbing tank 34. However, the moisture at the lower side is pumped toward the upper side through the connection pipe 35 for recycling. In this case, since the moisture and the poroligenous liquor respectively have a certain temperature, the moisture is evaporated to the air during recycling and thus the poroligenous liquor finally remains.

[46] If the valve 84 is closed and the valve 85 is opened, the poroligenous liquor generated in the loading area 21 is exhausted through the outlet 85 at the front. In this case, if a vessel is placed at the front of the outlet 85, the exhausted poroligenous liquor can be contained in the vessel.

[47] Since the ceiling 50 and the bottom 52 of the loading area 21 are formed in an arc shape, dew occurs due to a heat source generated by the far-infrared heater 25. However, such dew easily flows or drops from the ceiling 50 to the inside, and liquid is easily collected in the vacuum hole 31 at the bottom 52.

[48] Furthermore, although the loading area 21 may be formed with various sizes, it generally has a length of 3600cm. In this case, a raw lumber which exceeds such a length cannot be inserted into the loading area 21. Accordingly, if the connection device 60 is placed between the vacuum dry kilns 10 and 10' after the door 41 is fully opened through the door switching device 40 of the vacuum dry kilns 10 and 10' the connection groove 65 formed in the connection member 63 matches the clamp grips 47.

[49] Then, the clamp grips 47 are rotated to be fixed to the connection groove 65, so that the vacuum dry kilns 10 and 10' are connected with each other through the sealing portion 62 at both sides of the connection body 61. In this case, if the door 41 provided at an opposite side is opened, the loading area 21 of which length is increased two times can be obtained, whereby a raw lumber of at least 7m can be inserted into the loading area 21. Advantageous Effects

[50] The present invention is to allow far-infrared rays to be penetrated into a deep place of the vacuum dry kiln by supplying the raw lumber to the vacuum dry kiln and maintaining a temperature of 19O⁰C to 21O⁰C through the far-infrared heater.

[51] The present invention is to provide a vacuum-dried article which reduces moisture from about 38% to about 5% after the passage of about one week as the moisture generated in the vacuum dry kiln is exhausted through the water ring type vacuum pump. [52] The present invention is to dry a processed raw lumber without defect such as split during vacuum dry as the moisture content is freely controlled using far- infrared rays under the vacuum state. [53] The present invention is to recycle the poroligenous liquor by naturally drying the moisture and maintaining the poroligenous liquor only in accordance with successive rotation (stirring). [54] The present invention is to provide various articles which are manufactured as charcoal as the articles are supplied to a kiln after their moisture is controlled, so as to provide various functions of charcoal, such as emission of far-infrared rays, emission of anion, preservation and deodorization. [55] The present invention is to dry a long raw lumber under the vacuum state by connecting two vacuum dry kilns with each other through the connection device. [56] The present invention is to easily move dew generated due to temperature variation to the bottom and then exhaust the dew out as the ceiling and the bottom are formed in an arc shape. [57] The present invention is to prevent foreign materials such as soil and dust from being moved to the bottom as the net is provided at the lower side.

Brief Description of the Drawings [58] FIG. 1 is a side view illustrating a dry kiln according to the preferred embodiment of the present invention. [59] FIG. 2 is a front view illustrating a vacuum dry kiln according to the present invention. [60] FIG. 3 is a sectional view illustrating the state that a vacuum dry kiln according to the present invention is installed; [61] FIG. 4 is an enlarged sectional view illustrating a main part inside a vacuum dry kiln according to the present invention. [62] FIG. 5 is a front view illustrating a poroligenous liquor exhaust device according to the present invention. [63] FIG. 6 is a sectional view illustrating the state that a door switching device according to the present invention is installed. [64] FIG. 7 is a state view illustrating the state that clamp grips are operated to detach a door according to the present invention. [65] FIG. 8 is a state view illustrating the state that clamp grips are rotated to detach a door according to the present invention. [66] FIG. 9 is a sectional view illustrating the state that a door according to the present invention is detached. [67] FIG. 10 is a sectional view illustrating the state that a loading case according to the present invention is detached.

[68] FIG. 11 is a front view illustrating a loading case according to the present invention.

[69] FIG. 12 is an enlarged side view illustrating a main part of a loading case according to the present invention. [70] FIG. 13 is a perspective view illustrating the state that a lateral net is detached from a loading case according to the present invention. [71] FIG. 14 is a plane view illustrating the state that dry kilns according to the present invention are connected with each other. [72] FIG. 15 is a perspective view illustrating a dry kiln connection device according to the present invention. [73] FIG. 16 is an enlarged perspective view illustrating a main part of a dry kiln connection device according to the present invention.

[74] FIG. 17 is a sectional view illustrating a teacup applied the present invention.

[75] FIG. 18 is a perspective view illustrating a tableware set applied the present invention.

[76] FIG. 19 is a perspective view illustrating a tea set applied the present invention.

[77] FIG. 20 is a perspective view illustrating a charcoal grill plate applied the present invention.

[78] FIG. 21 is a sectional view illustrating an ash case applied the present invention.

[79] FIG. 22 is a perspective view illustrating a bamboo wooden cup applied the present invention.

[80] FIG. 23 is a perspective view illustrating a lamp applied the present invention.

[81] FIG. 24 is a front view illustrating a stand applied the present invention.

[82] [DESCRIPTION OF MAIN REFERENCE NUMERALS IN THE DRAWINGS]

[83] 10: vacuum dry kiln, 20: main body

[84] 21: loading area, 22: outer chamber metal plate

[85] 23: insulating material, 24: inner chamber metal plate

[86] 25: far-infrared heater, 26: rail

[87] 29: sealing portion, 30: vacuum absorbing device

[88] 31: vacuum hole, 32: pipe

[89] 33: vacuum pump, 34: absorbing tank

[90] 35: connection pipe, 40: door switching device

[91] 41: door, 42: door plate

[92] 43: fitting groove, 44: reference axis

[93] 45: connection belt, 46: moving axis

[94] 47: clamp grip, 48: screw axis

[95] 49: axis clamp, 50: ceiling

[96] 51: net, 52: bottom [97] 60: connection device, 61: connection member

[98] 64: connection projection, 65: connection groove

[99] 70: loading case, 71: pipe

[100] 72: lateral net, 73: net clamp belt

[101] 74: column, 80: poroligenous liquor exhaust device

[102] 81: exhaust pipe

[103]

Best Mode for Carrying Out the Invention

[ 104] ( 1 ) Preparation step of forming product

[105] A raw lumber which has been picked is naturally dried to process a rectangular shape or a circular shape containing moisture of 25% to 39% and having a certain size and thickness to form a vessel or various articles, whereby a forming product is manufactured or a plate is formed.

[106]

[107] (2) Vacuum dry step

[108] After the raw lumber is supplied to the upper side of the loading case 70 which exists in the loading area 21 of the vacuum dry kiln 10, the far- infrared heater 25 is heated so that a temperature of 19O⁰C to 210⁰C is maintained. The vacuum pump 33 of the vacuum absorbing device 30 is driven so that the loading area 21 is maintained under the vacuum state.

[109] At this time, the forming product supplied to the loading area 21 is heated by the maintained temperature and the moisture generated under the vacuum state is exhausted from the vacuum hole 31 to the pipe 32 or the outlet 85 through the exhaust pipe 81. This state is maintained for six to eight days, so that moisture of 5% remains from that of 38%.

[110]

[111] (3) Processing step

[112] The forming product or the plate, which contains moisture of about 5%, is supplied to the kiln and then heated to manufacture charcoal. The manufactured charcoal undergoes after-processing to process various articles made of charcoal. Mode for the Invention

[113] As shown in FIG. 17, a teacup 100 for green tea includes a vessel 101 provided with a space 102 that provides water and a green tea component soaked out of leaves of green tea, and a charcoal filtering vessel 104 provided with a rim 105 placed on the vessel 101, an insertion portion 106 into which the leaves of green tea are supplied, a plurality of lower holes 107, and several lateral holes 108 to allow the green tea component of the leaves of green tea to be soaked out. The charcoal filtering vessel 104 is positioned inside the vessel 101, and is covered with a cover 103.

[114] The charcoal filtering vessel 104 is completed by forming a vessel processed using a raw lumber as charcoal and finishing the same. The leaves of green tea are kept in the charcoal filtering vessel 104, and some of the leaves of green tea are soaked in water supplied to the space 102 of the vessel 101 so that the components of green tea are soaked by water.

[115] As shown in FIG. 18, a tableware set 110 includes a first vessel 113 formed in the form of bowl, a second vessel 114 formed to be smaller than the first vessel 113 and thus to be inserted into the first vessel 113, a third vessel 115 formed to be smaller than the second vessel 114 and thus to be inserted into the second vessel 114, and a cover

111 provided with a ceramic ware insertion space at the center to allow a ceramic ware

112 to be inserted thereto, wherein the first, second and third vessels 113, 114 and 115 are combined with one another inside the cover 111.

[116] The tableware set 10 according to the present invention is formed such that first, second and third vessels 20, 30 and 40 and a cover 11 are manufactured as charcoal in a single body. Since certain strength is given to the tableware set 10, the tableware set 10 is not fragile, and is covered with harmful components if it is used for a long time.

[117] As shown in FIG. 19, a tea set 120 includes a teacup 125 and a saucer 126 at the same size.

[118] Five teacups 125 and five saucers 126 constitute one set. A kettle 121 provided with a space 122 is provided with a nozzle 124 and a grip 123.

[119] The nozzle 124 and the grip 123 of the kettle 121 are formed in such a manner that they are separately formed and then adhered to the kettle 121 in a single body.

[120] The tea set 120 is formed such that the teacup 125, the saucer 126, and the kettle

121 are manufactured as charcoal in a single body. Since certain strength is given to the tea set 120, the tea set 120 is not fragile, and is covered with harmful components if it is used for a long time.

[121] As shown in FIG. 20, a charcoal grilled plate 131 is processed to have a rectangular shape or a circular shape greater than the size of a grill or a gas burner 130 to be used by cutting a raw lumber at a certain thickness of 5mm to 20mm. Then, the charcoal grilled plate 131 is formed as charcoal using the device of the present invention.

[122] As shown in FIG. 21, a panel is thickly formed as charcoal so that a charcoal case

141 and an outer charcoal cover 142 are separately formed to form an ash case 140.

[123] A cup 150 which is a charcoal product, as shown in FIG. 22, can be used as various purposes of use such as a bowl and a vessel depending on its size. The cup 150 is provided with a space 151 therein and has an opened side and a lower side which is closed. The outer circumference of the cup 150 is projected along with a saucer 152 so that the cup 150 and the saucer 152 are built on the ground. The cup 150 is provided with a joint 153 at one portion. [124] As shown in FIG. 23, a lamp 161 is connected with an electric wire 166. A clamp plate 165 fixed to a ceiling of the lamp 161, a body 164, and a frame 152 are formed as charcoal. [125] The body 164 is formed by piling several plates formed as charcoal, and the frame

162 is formed below the body 164 to provide a transparent portion 163. A socket connected with the electric wire 166 is fixed inside the frame 162. In this way, the lamp is assembled. [126] Furthermore, after a rod 168 is connected outside an installation belt 167, a connecti on belt 169 is connected with the rod 168 so that a plurality of lamps 161 are provided to constitute a composite lamp 160. [127] As shown in FIG. 24, a stand 170 is provided with an ornament rod 172 above a stay bar 171 provided with a switch 178, wherein the ornament rod 172 is provided with a metal connector 173 to be connected with a lamp cover 176. A socket 174 is provided inside the lamp cover 176 so that a lamp 175 is fitted into the socket 174. At the same time, the lamp cover 176 is provided with a plurality of through holes 177 so that the lamp cover 176 formed by charcoal emits heat due to light of the lamp 175 to generate far-infrared rays. In this way, the stand 170 is used.

Industrial Applicability [128] The present invention is applicable to various articles that can be manufactured u sing a wooden material and a raw lumber by drying the raw lumber.

Claims

[1] L A vacuum dry device for charcoal forming, comprising: a main body 20 provided with a plurality of far-infrared heaters 25 at a lower side of a loading area 21 which supplies a forming product or plate, having a ceiling 50 and a bottom 52, the ceiling 50 and the bottom 52 being rounded; a door switching device 40 opening and closing a door 41 provided with a door plate 42 at the front of the loading area 21 ; a loading case 70 moving from a rail 26 of the loading area 21, having a channel 76 and lateral nets 72, the channel 76 being connected with a plurality of pipes 71, and the lateral nets 72 being provided at both sides of the loading case 70; and a vacuum absorbing device 30 connected to an exhaust pipe 81 in a vacuum hole 31 formed at the lower side of the loading area 21, having a water ring type vacuum pump 33 which absorbs moisture and poroligenous liquor under the vacuum state and supplies the absorbed moisture and poroligenous liquor to an absorbing tank 34.

[2] 2. A vacuum dry method for charcoal forming, comprising: supplying a raw lumber to a loading area 21 and heating a far-infrared heater 25 to maintain a temperature of 140⁰C to 15O⁰C; driving a vacuum pump 33 of a vacuum absorbing device 30 to maintain the loading area 21 under the vacuum state; and exhausting moisture generated in the loading area 21 through a vacuum hole 31 and an exhaust pipe 81 for six to eight days, thereby allowing the moisture to remain in the range of 5% and manufacturing charcoal in a kiln through vacuum dry.

[3] 3. The vacuum dry device as claimed in claim 1, wherein the main body 20 makes an outer chamber metal plate 22 and an inner chamber metal plate 24 thick to fill an insulating material 23 between the outer chamber metal plate 22 and the inner chamber metal plate 24.

[4] 4. The vacuum dry device as claimed in claim 1, wherein the vacuum absorbing device 30 supplies the moisture and the poroligenous liquor absorbed through a pipe 32 to the absorbing tank 34 and stirs them through a connection pipe 35 to allow the moisture to be dried and the poroligenous liquor to remain.

[5] 5. The vacuum dry device as claimed in claim 1, wherein the loading case 70 is provided with net clamp belts 73 at both sides of a column 74 connected with the channel 76 so that the lateral nets 72 are connected with the net clamp belts 73 by assembly, and is inserted at both sides of the main body 20. [6] 6. The vacuum dry device as claimed in claim 1, further comprising a connection device 60 provided with a sealing portion 62 formed from one side of the door 41 of a dry kiln 10 to both sides of a connection body 61 and a connection groove 65 formed at both sides of a connection member 63, thereby connecting dry kilns 10 and 10'with each other through clamp grips 47.