KR100764594B1 - Deacidification method of library materials using deacidifiable apparatus by inundation of library materials - Google Patents

Abstract

A method for deacidifying documents is provided to shorten the time for deacidifying the documents and effectively and easily deacidify the documents, by flowing a deacidification solution during a deacidification process so that the deacidification solution infiltrates the documents uniformly. A carriage loading documents is inputted into a chamber(S10). A deacidification solution supplying unit including a supply pump is operated to fill the chamber so that documents are immersed in the deacidification solution(S30). The deacidification solution is left within the chamber so that the documents are deacidified in the chamber(S30'). A deacidification solution collecting unit is operated to collect the deacidification solution from the chamber to a deacidification solution tank(S50). A heater is operated to dry the documents within the chamber(S60). The dried documents are discharged from the chamber(S100).

Description

Document dewatering method using document immersion document extractor {DEACIDIFICATION METHOD OF LIBRARY MATERIALS USING DEACIDIFIABLE APPARATUS BY INUNDATION OF LIBRARY MATERIALS}

1 is a front view of a document extraction apparatus according to the prior art,

FIG. 2 is a system diagram showing the configuration of a document immersion type document extraction apparatus used in a document extraction method according to an embodiment of the present invention; FIG.

3 is a front view of the document extracting apparatus shown in FIG. 2;

4 is a plan view of the document extracting apparatus shown in FIG.

5 to 9 are flow charts showing a document extraction method according to the operation of the document extraction apparatus shown in FIG.

10 is a flow chart showing a document extraction method according to an embodiment of the present invention;

FIG. 11 is a flow chart showing the bet removal step of the chamber shown in FIG. 10;

12 is a flowchart showing a deoxidation liquid filling step in the chamber shown in FIG. 10;

13 is a flow chart showing the deoxidant flow step in the chamber shown in FIG. 10;

14 is a flow chart showing the vaporized deoxidation condensation step in the chamber shown in FIG. 10;

FIG. 15 is a flow chart showing the condensed deoxidant recovery step shown in FIG.

<Description of Symbols for Main Parts of Drawings>

110: carriage 112: rack

114: document cartridge 120: chamber

130: deoxidizer tank 140: deoxidizer supply unit

142: supply pipe 144: supply pump

150: deoxidation liquid recovery unit 152: recovery pipe

156: filter 160: gas discharge unit

162: exhaust pipe 164: gas collection tank

166: vacuum pump 166a: vacuum release valve

168: condenser 168a: evaporator

168b: Cooler 170: Controller

180: return unit 182: return pipe

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document deoxidation method for deoxidizing a document acidified using a deoxidizer, and relates to a document dehydration method using a document immersion type document deoxidation apparatus for deoxidizing a document by immersing the document in the deoxidation liquid.

In general, documents made of paper, such as books, magazines, newspapers, or archives, are acidified with time by acidic substances contained in the paper. As a result, after several years, the document is damaged or damaged while destroying the fibrous structure of the paper. Therefore, the long term storage of documents should be prevented from acidification.

Here, Figure 1 attached is a front view of the document deoxidation device according to the prior art to deoxidize the document to prevent the acidification of the document, the applicant of the present invention filed a patent application to the Korean Patent Office prior to the application of the present invention, September 2002 Fig. 16 is a front view of the document extracting apparatus disclosed in Japanese Patent No. 0354565 (name: Document Deoxidation Processing Device).

As shown in the drawing, the document dehydration apparatus according to the related art has a fan when the bookshelves P are unfolded and fixed inside the chamber 10 by the document holder 20 in which the document D is reciprocally installed. The nozzle assembly 40 injects the document D into the air of the air supply means 50 supplied by the 52 and the deoxidation liquid of the solution tank 61 supplied by the pressure pump 63. In this way, the air injected from the nozzle assembly 40 spreads the bookcase P of the document D more reliably in a single sheet. Therefore, the sprayed deoxidizing liquid is easily applied between the bookshelves P.

At this time, the document D horizontally reciprocates the interior of the chamber 10 by the document holder 20 reciprocating along the screw 34. Accordingly, the deoxidizing solution is evenly applied to the bookshelf P of the document D. FIG. Thus, the document D is deoxidized by the applied deoxidizing liquid while preventing acidification.

Here, the deoxidation liquid injected into the document D is recovered by the solution recovery means 70. That is, the deoxidation liquid is collected in the inclined drain pan 71, and then purified by the recovery filter 75 while flowing through the solution recovery pipe 74 by the solution recovery pump 72 and then recovered in the recovery tank 73. do. The deoxidation liquid volatilized in the document D is collected in the exhaust hood 76 by the exhaust fan 77, and then condensed in the condenser 78 through the duct 79 and then recovered in the recovery tank 73. do.

On the other hand, the document D coated with the deoxidation liquid is dried by heated air supplied from the nozzle assembly 40. At this time, the heated air is the air supplied from the air supply means 54, by the heater 54 installed in the circulating duct 51 connecting the air supply means 54 and the nozzle assembly 40 as shown Heated.

The document deoxidation apparatus according to the prior art as described above is excellent in the application effect of the deoxidation liquid because the bookshelf P of the document D is unfolded by the air of the nozzle assembly 40. In addition, since the solution recovery means 70 and the condenser 78 recover both liquid and gaseous deoxidizers, it is possible to prevent excessive consumption of the deoxidizers.

However, the document extracting apparatus according to the prior art, as shown in the document holder 20 can fix only one or two document D is not able to extract a large amount of documents in a short time, as well as , There is an inconvenient problem of fixing the document D to the document holder 20 one by one. In addition, since the document D is dried by the air supplied from the air supply means 50 through the heater 54, there is a problem that the drying effect is insufficient.

In addition, in order to extract documents using the document extractor according to the related art, the document D may be fixed to the document holder 20 and the document holder 20 may be repeatedly reciprocated. The deoxidation process is very complicated and there is also a problem that excessive deoxidation time is required.

On the other hand, reference numeral 33 in the drawings is a transfer motor for rotating the screw 34, 53 is an air supply pipe for supplying air from the air supply means 54 to the nozzle assembly 40, 62 is the solution tank 61 It is a stirrer for stirring the deoxidation liquid stored in. In addition, 64 is a solution supply pipe for supplying the deoxidation liquid of the solution tank 61 to the nozzle assembly 40, and 80 is a controller for controlling the operation of the document deoxidizer.

The present invention was created to solve the above-mentioned conventional problems, and can deoxidize a large amount of documents at once using a plurality of chambers simultaneously. The purpose of the present invention is to provide a document deoxidation method using a document immersion type document deoxidation apparatus which can be deoxidized by immersion in water, and the chamber can be heated to dry the deoxidized document.

Another object of the present invention is to provide a document deoxidation method using a document immersion type document deoxidation device capable of drying a document preparing for deoxidation by heating the chamber and removing moisture from the document using a vacuum. .

In addition, by using the document immersion type document dehydrator which can infiltrate the deoxidant evenly through the document by flowing the dehydrated liquid in which the document is submerged, and filling the chamber with dehydration liquid by the pumping pressure or vacuum of the pump. Another purpose is to provide a method for document extraction.

In addition, another object of the present invention is to provide a document deoxidation method using a document immersion type document deoxidizer that can recover not only the deoxidation liquid used for deoxidation but also the deoxidized liquid vaporized during deoxidation.

The document deoxidation method using the document immersion document deoxidation apparatus according to the present invention for achieving the above object is a deoxidizing liquid having an intermittent valve and a supply pump in a chamber connected to a heater to isolate the carriage containing the document from the outside Using a document immersion type document dehydration apparatus to fill the deoxidation liquid of the deoxidation tank by using the supply pipe of the supply unit, and to recover the charged deoxidant liquid into the deoxidation tank through the recovery tube of the deoxidation liquid recovery unit having an opening / closing valve. A document deoxidation method comprising: introducing the carriage into the chamber; Filling the chamber with deoxidizing liquid by operating the deoxidizing liquid supply unit including the supply pump so that the document loaded on the carriage is submerged in the deoxidizing liquid; Leaving a charged deoxidizing liquid in the chamber such that the document is deoxidized in the chamber; Operating the deoxidation liquid recovery unit to recover deoxidized liquid left in the chamber to the deoxidation tank; Operating the heater to dry the document in the chamber from which deoxidation liquid has been recovered; And ejecting the document from the chamber.

Hereinafter, with reference to the accompanying drawings, an embodiment of the present invention will be described as follows, the accompanying Figure 2 is a system showing the configuration of a document immersion type document dehydration apparatus used in the document extraction method according to an embodiment of the present invention 3 is a front view of the document extraction apparatus shown in FIG. 2, and FIG. 4 is a plan view of the document extraction apparatus shown in FIG. 5 to 9 are flowcharts illustrating a document derivation method according to the operation of the document derivation apparatus shown in FIG. 2.

Referring to Figure 2, the document deoxidation apparatus used in the embodiment of the present invention, the chamber 120 as shown; Deoxidant tank 130; Deoxidation liquid supply unit 140; It includes; deoxidation liquid recovery unit 150. And, it includes a carriage for controlling the operation of the carriage and the above-described devices (120 ~ 150) not shown. Here, the components will be described in more detail as follows.

First, the chamber 120 is preferably configured in the form of a rectangular tube as shown. At this time, the illustrated chamber 120 shows a side view. This chamber 120 has a see-through window W and a door 122 at its sides and one end as shown. Therefore, the chamber 120 not only expresses the interior through the see-through window W but also opens and closes as needed by the door 122.

Here, the above-described chamber 120 may be configured to further include a heater 124 as shown to be fixed by bolting or welding to heat the interior. Such a heater 124 is preferably using a far-infrared lamp that emits far-infrared rays, and as shown is waterproofly installed in the interior of the chamber 120, or otherwise shown in the viewing window (W) outside the chamber 120 ) Can be installed adjacently. At this time, when the heater 124 is installed outside the chamber 120 as described above, the far infrared ray of the heater 124 is transferred to the inside of the chamber 120 through the viewing window (W). Therefore, the chamber 120 is heated inside. Thus, the reason why the heater 124 is installed in the chamber 120 is because the inside of the chamber 120 can be dried through the heat of the heater 124. Of course, when the document described later is put into the chamber 120, the document is dried by the heat of the heater 124.

Next, the deoxidation tank 130 is configured as a sealed container on all sides as shown, and stores the degassing liquid that can be vaporized in an airtight state. In this case, the deoxidation liquid is preferably formed by diluting the fine particle magnesium oxide (MgO) in a volatile fluorine-based carrier solution, and using a perfluoroalkaine solution volatilized at about -38 ° C as a carrier solution. More preferred. Thus, magnesium oxide is moved by the carrier solution that is volatilized.

The deoxidant tank 130 for storing such deoxidant is provided with an agitator 132 as shown. The stirrer 132 provided as described above periodically stirs the deoxidized liquid stored in the deoxidized liquid tank 130 to prevent precipitation of the above-described magnesium oxide.

Here, the above-described stirrer 132 may be configured, for example, as a pump as shown to operate periodically. Therefore, the pump pumps and circulates the deoxidation liquid stored in the deoxidation tank 130. Accordingly, the deoxidation liquid stored in the deoxidation tank 130 is stirred while being periodically circulated.

On the contrary, the above-described stirrer 132 may include, for example, a stirring blade having a rotating shaft, not shown, which is embedded in the deoxidation tank 130 and rotates; It may be configured to include; a rotary motor for rotating the rotary shaft of the stirring blade. In this case, the stirring blade is stirred inside the deoxidizing tank 130 while rotating inside the deoxidizing tank 130 by the rotary motor. These stirring blades and the rotary motor are not shown in the drawings because they are easily understood by those skilled in the art.

Next, the deoxidation liquid supply unit 140 supplies the deoxidation liquid stored in the deoxidation tank 130 described above to the aforementioned chamber 120. Accordingly, the deoxidation liquid is filled in the chamber 120. Here, the deoxidation liquid supply unit 140 connects the above-described chamber 120 and the deoxidation tank 130 as shown, for example, and has a supply pipe 142 having an intermittent valve 142a for controlling an internal pipe line. And; And a supply pump 144 for supplying the deoxidation liquid of the deoxidation tank 130 described above to the supply pipe 142. In addition, the deoxidation liquid supply unit 140 may further include an auxiliary supply pump 144 as shown to operate when the above-described supply pump 144 is inoperative.

The deoxidation liquid supply unit 140 supplies the deoxidation liquid of the deoxidation tank 130 pumped by the supply pump 144 to the chamber 120 through the supply pipe 142. At this time, the intermittent valve 142a of the supply pipe 142 operates in conjunction with the supply pump 144 and opens the supply pipe 142 so that the deoxidation liquid is supplied to the chamber 120 through the supply pipe 142. When the operation of the supply pump 144 is completed, the supply pipe 142 is closed.

Finally, the deoxidation liquid recovery unit 150 recovers the deoxidation liquid supplied to the chamber 120 through the deoxidation liquid supply unit 140 described above to the deoxidation tank 130 described above. The deoxidation liquid recovery unit 150 is connected to the chamber 120 and the deoxidation tank 130 described above, for example, to open / close a valve 152a for recovering the deoxidant liquid of the chamber 120 to the deoxidation tank 130. A recovery pipe 152 having; And a filter 156 for filtering foreign matters from the deoxidation liquid recovered by the recovery pipe 152.

At this time, the opening and closing valve 152a of the recovery pipe 152 may be configured to interlock with the intermittent valve 142a mounted on the supply pipe 142 of the deoxidation liquid supply unit 140 described above. That is, the recovery pipe 152 of the deoxidation liquid recovery unit 150 and the supply pipe 142 of the deoxidation liquid supply unit 140 may be opened and closed together as necessary.

And, the filter 156 is interposed in a portion of the recovery pipe 152, as shown, to connect the recovery pipe 152 continuously as well as to extract the foreign matter from the deoxidation liquid flowing through the recovery pipe 152. The deoxidation liquid recovery unit 150 configured as described above returns the deoxidation liquid of the chamber 120 to the deoxidation tank 130 as the open / close valve 152a opens the recovery pipe 152. Therefore, the deoxidation liquid of the chamber 120 is recovered to the deoxidation tank 130. Of course, the deoxidized liquid recovered in the deoxidized liquid tank 130 is purified by the filter 156 and recovered.

Here, the deoxidizer filled in the chamber 120 by the deoxidizer supply unit 140 described above may be flown by the deoxidizer flow means. Such a deoxidation liquid flow means may be configured such that, for example, the deoxidant supply unit 140 and the deoxidant recovery unit 150 are interlocked after the deoxidant is filled in the chamber 120. That is, the deoxidation liquid flow means operates the deoxidation liquid supply unit 140 and the deoxidation liquid recovery unit 150 at the same time after the deoxidation liquid is filled in the chamber 120. Therefore, the deoxidation liquid filled in the chamber 120 flows by flowing through the deoxidation liquid supply unit 140, the deoxidation liquid recovery unit 150, and the deoxidation tank 130 by the deoxidation liquid flow means.

Such deoxidation liquid flow means may be configured through a controller (to be described later) for controlling the operation of the deoxidation liquid supply unit 140 and the deoxidation liquid recovery unit 150. That is, the controller may be configured to program the deoxidizer supply unit 140 and the deoxidizer recovery unit 150 to operate simultaneously.

However, the deoxidizer flow means may be configured by providing a vibrator for generating a screw or vibration not shown in the chamber 120, as described above. Such a screw or vibrator circulates or vibrates the deoxidation liquid filled in the chamber 120 in the chamber 120. Thus, the deoxidation liquid flows. Here, the components such as the screw or the vibrator described above are easily understood by those skilled in the art, so the drawings and detailed description thereof will be omitted.

On the other hand, the above-mentioned chamber 120 may be configured as one, but it is preferable to configure a plurality as shown. If the chamber 120 is configured in plural as shown, the above-described deoxidizing liquid supply unit 140 and the deoxidizing liquid recovery unit 150 is a quantity corresponding to the quantity of the chamber 120 as shown You need to configure it. And, the deoxidation tank 130 described above needs to be configured as shown in order to reduce the manufacturing cost.

Here, the reason why the deoxidizing liquid supply unit 140 and the deoxidizing liquid recovery unit 150 is configured in a quantity corresponding to the quantity of the chamber 120 is easy after supplying the deoxidizing liquid to the chamber 120 for a short time. To recover. That is, when the deoxidant supply unit 140 and the deoxidant recovery unit 150 are configured in quantities corresponding to the quantity of the chamber 120, the deoxidant supply unit 140 and the deoxidant recovery unit 150 are deoxidized. Since the liquid is supplied and recovered separately, not only the deoxidation liquid can be easily supplied to the chamber 120, but also the supplied deoxidation liquid can be easily recovered.

However, in contrast, when one deoxidant supply unit 140 and the deoxidant recovery unit 150 are configured to be connected to the plurality of chambers 120, the deoxidant supply unit 140 and the deoxidant recovery unit 150 may be used. Since the deoxidizing liquid must be supplied to the plurality of chambers 120, not only the deoxidizing liquid may be easily supplied but also not easily recovered. In particular, the deoxidation liquid supply and recovery time is excessively required. Therefore, when the deoxidant supply unit 140 and the deoxidant recovery unit 150 are configured in plural chambers 120, the deoxidant supply unit 140 and the deoxidant recovery unit 150 may be configured in a quantity corresponding to the number of chambers 120.

Of course, the deoxidation tank 130 described above may also be configured to correspond to the quantity of the chamber 120. However, even if only one deoxidizer tank 130 is provided, the deoxidizer may be sufficiently supplied to the plurality of chambers 120. This is because the deoxidation liquid may be sequentially supplied to the plurality of chambers 120. In more detail, the deoxidizing liquid is preferentially supplied to one chamber 120 through the above-described deoxidizing liquid supply unit 140, and the deoxidizing liquid preferentially supplied through the deoxidizing liquid recovery unit 150 described above. After recovering, the deoxidizing liquid is supplied and recovered again through the deoxidizing liquid supply unit 140 and the deoxidizing liquid recovery unit 150 connected to the other chamber 120. Accordingly, one deoxidizer tank 130 may fill the deoxidizer into the plurality of chambers 120. Therefore, it is efficient to configure the deoxidation tank 130 in one irrespective of the number of chambers 120.

On the other hand, the document extraction apparatus according to the embodiment of the present invention described above, it is necessary to further comprise a gas discharge unit 160 as shown. The gas discharge unit 160 forcibly discharges the gas present in the chamber 120 described above to purify the internal air of the chamber 120. That is, the gas discharge unit 160 removes the internal air of the chamber 120.

Here, the above-described gas discharge unit 160, for example, is connected to the above-described chamber 120, as shown, an exhaust pipe 162 having a shielding valve (162a); A vacuum pump 166 connected to the chamber 120 through the exhaust pipe 162; And a vacuum release valve (166a) for releasing the vacuum pressure formed by the vacuum pump (166). In this case, the vacuum release valve 166a may be provided in the chamber 120 as shown, or alternatively, may be provided in the exhaust pipe 162 between the chamber 120 and the shielding valve 162a.

In the gas discharge unit 160 configured as described above, the vacuum pump 166 evacuates the chamber 120 through the exhaust pipe 162 to exhaust the gas present in the chamber 120. At this time, the gas present in the chamber 120 is discharged through the exhaust pipe 162 to the outlet port of the vacuum pump 166 not shown. Of course, the shield valve 162a of the exhaust pipe 162 is opened so that the gas in the chamber 120 is exhausted. At this time, the chamber 120 is vacuumed as the bet is exhausted by the vacuum pump 166, and the vacuum is released by the vacuum release valve 166a as necessary. That is, the vacuum release valve 166a releases the vacuum of the chamber 120.

The gas discharge unit 160 may further include a condenser 168 as shown to collect and condense the gas discharged from the vacuum pump 166. Here, the above condenser 168 is connected to the above-described exhaust pipe 162 as shown, for example, the gas collection tank 164 having a drain valve 164a; And a cooler 168b for cooling the gas collecting tank 164. At this time, the cooler 168b is embedded in the gas collecting tank 164 as shown, and has an evaporator 168a for cooling the gas collecting tank 164 by a low temperature refrigerant. Therefore, the cooler 168b cools the gas collection tank 164 through the evaporator 168b. The cooler 168b is prepared to be able to cool the gas collecting tank 164 to a temperature of about +10 ℃ to -40 ℃.

The condenser 168 configured as described above cools the gas collecting tank 164 through the cooler 168b when the gas in the chamber 120 is collected in the gas collecting tank 164 through the exhaust pipe 162 described above. . Therefore, the gas collected in the gas collecting tank 164 is liquefied while condensing. That is, the gas collected in the gas collecting tank 164 is converted into condensed water.

In addition, the gas discharge unit 160 as described above, when the condensate condensed in the gas collection tank 164 is deoxidized condensate, the return unit for returning the condensed deoxidized liquid to the deoxidized liquid tank 130 described above. It may be configured to further include (180).

Here, the above-mentioned return unit 180, for example, may be configured as a return pipe 182 connecting the gas collection tank 130 and the deoxidation tank 130, having a control valve 182a as shown. . The return unit 180 transmits the deoxidation condensate generated in the gas collection tank 130 to the deoxidation tank 130 through the return pipe 182. Of course, the control valve 182a operates to transmit the condensate to the deoxidation tank 130.

In addition, the gas discharge unit 160 as described above is shown to supply and recover the deoxidation liquid vaporized while evaporated in the deoxidation tank 130 described above, to the gas collection tank 164 of the condenser 168 described above. It may be necessary to further comprise a boil-off gas recovery unit 190 as described above.

Here, the above-described boil-off gas recovery unit 190 connects the above-described degassing tank 130 and the gas collecting tank 164 of the condenser 168 as shown, and is provided with a flow control valve 192a. The boil-off gas pipe 192 may be configured. The boil-off gas recovery unit 190 supplies the degassed liquid evaporated through the boil-off gas pipe 192 opened by the flow control valve 192a to the gas collection tank 164. Therefore, the evaporated deoxidant is converted into deoxidant condensate by the cooler 168b of the condenser 168, which cools the gas collection tank 164, and then, through the condensate return unit 180 described above, the deoxidant tank. Recovered back to 130.

At this time, the evaporated deoxidation liquid of the deoxidation tank 130 is collected in the gas collection tank 164 by the temperature difference between the degassing tank 130 and the gas collection tank 164 cooled by the cooler 168b. That is, the evaporated deoxidation liquid is collected in the gas collecting tank 164 by the temperature difference between the deoxidizing tank 130 and the gas collecting tank 164. Of course, the evaporated deoxidation liquid is collected in the gas collection tank 164 through the evaporation gas pipe 192 by the convection phenomenon caused by the temperature difference.

On the other hand, all the valves described above are configured to enable electronic control. That is, the intermittent valve 142a mounted on the supply pipe 142 of the deoxidation liquid supply unit 140, the open / close valve 152a mounted on the recovery tube 152 of the deoxidation liquid recovery unit 150, and the gas discharge unit A shield valve 162a and a vacuum release valve 166a mounted on the exhaust pipe 162 of the 160, a control valve 182a mounted on the return pipe 182 of the return unit 180, and an evaporation gas recovery unit ( The flow control valve 192a mounted on the boil-off gas pipe 192 of 190 is a solenoid valve or a pneumatic valve capable of electronic control.

Referring to FIG. 3, the gas collection tank 164 of the chamber 120 and the gas discharge unit 160 illustrated in FIG. 2 is configured in plural and mounted on the upper portion of the frame F as shown. Then, the deoxidation tank 130 and the vacuum pump 166 and the cooler 168b of the gas discharge unit 160 shown in FIG. 2 are installed in the lower portion of the frame F as shown. In addition, the controller 170 mentioned in the above description of FIG. 2 is formed in the form of a box as shown and installed in front of the frame F. As shown in FIG. In this case, the controller 170 has a touch screen and an operation switch capable of inputting the driving contents and displaying the driving status as shown, and have a controller (not shown) and a timer (not shown) configured in a module form therein. Therefore, the controller 170 controls the above-described components according to the contents input through the touch screen and the operation button to operate.

On the other hand, the above-described chamber 120 is mounted as shown inside the heater 124 mentioned in the above description of FIG. The chamber 120 is equipped with a temperature sensor TS, an air pressure sensor PS, and a water level sensor TS as shown therein. The temperature sensor TS detects the temperature of the chamber 120, the air pressure sensor PS measures the air pressure of the chamber 120, and the water level sensor TS of the deoxidation liquid filled in the chamber 120. Detect water level At this time, the temperature sensor TS, the barometric pressure sensor PS, and the water level sensor TS are preferably installed inside the door 122 of the chamber 120.

As described above, the carriage 110 is introduced into the chamber 120. This carriage 110 holds the document D as shown enlarged. Thus, the document D is introduced into the chamber 120 by the carriage 110. Of course, the carriage 110 is inserted into the chamber 120 through the door 122 of the chamber 120, as shown in an enlarged view, and is isolated from the outside by the chamber 120 as the door 122 is closed.

At this time, the carriage 110 is guided through the rail-shaped nozzle (R) installed in the chamber 120. Such a rail-shaped nozzle (R) is preferably provided to protrude on the bottom and side surfaces of the chamber 120, as shown through bolting or welding. The reason why the nozzle R is formed by protruding the bottom surface and the side surface of the chamber 120 is to guide the introduction of the carriage 110, and at the same time, the outer circumferential surface of the carriage 110 and the inner circumferential surface of the chamber 120. For spacing. Therefore, when the deoxidizing liquid described above is filled in the chamber 120, the deoxidizing liquid easily penetrates into the carriage 110 through the spaced gap between the carriage 110 and the chamber 120.

Here, the carriage 110 may be configured as a rack 112 of a box shape having an upper portion having a bottom 112a and a wall 112b as shown. The carriage 110 is preferably formed by forming a through hole (H) in the bottom (112a) and the wall (112b) as shown. Therefore, the deoxidation liquid filled in the chamber 120 by the deoxidation liquid supply unit 140 mentioned above penetrates into the rack 112 through this through-hole H. As shown in FIG. Of course, the document D deposited in the rack 112 is submerged in the deoxidizing liquid as the deoxidizing liquid penetrates into the inside of the rack 112.

The carriage 110 needs to further include a plurality of document cartridges 114 in which the document D is embedded, as shown. Here, the document cartridge 114 may be configured as, for example, a hexahedral case of one side open type having a through hole 114a formed therein. The document cartridge 114 configured as described above introduces the document D through one open side, and supplies the deoxidizing liquid through the through hole 114a. Therefore, the document D is immersed in the deoxidizing liquid and deoxidized.

Since the document cartridge 114 includes a plurality of documents (D), respectively, to prevent adhesion between the documents (D), not only helps the deoxidation solution to penetrate each document (D), but also documents (D). ) To prevent the document D from being decomposed during deoxidation. That is, the deoxidizing liquid easily penetrates through the spaced gaps because each document D is spaced apart by the document cartridge 114. Therefore, dehydration liquid permeate | transmits uniformly several documents D. FIG.

Referring to FIG. 4, the controller 170 illustrated in FIG. 3 described above is disposed in front of the frame F, and the plurality of chambers 120 illustrated in FIG. 3 described above are provided on both sides of the frame F. Referring to FIG. Is installed in, the gas collecting tank 164 of the gas discharge unit 160 shown in FIG. 3 described above is installed in the front center on the frame (F). In addition, the deoxidation tank 130 and the vacuum pump 166 of the gas discharge unit 160 shown in FIG. 3 are disposed behind the gas collection tank 164 described above. At this time, the cooler 168b of the gas discharge unit 160 shown in FIG. 3 is concealed by the frame F as it is disposed below the frame F described above. Therefore, the cooler 168b is not shown in the figure.

Referring to Figures 2 and 3 described above the operation of the document extraction apparatus used in the embodiment of the present invention configured as described above with reference to Figures 5 to 9 attached as follows, Figures 5 to The drawings shown in Fig. 9 are described in parenthesis together with only the reference numerals next to the description of the operation so as to prevent duplicate explanation. In this case, the document extraction apparatus used in the document extraction method according to an embodiment of the present invention will be described as an example of the case that the component is configured as shown in FIG. That is, the document extraction apparatus will be described as an example in which all of the above-described components are all configured. At this time, all the components shown in the operation is controlled by the above-described controller, all the valves shown are all shielded before operation is started.

Referring to FIG. 3, the carriage 110 is introduced into the chamber 120 through the door 122 of the chamber 120 before the deoxidation liquid is filled in the chamber 120 as shown in an enlarged view. At this time, the carriage 110 is introduced along the rail-shaped nozzle (R) of the chamber 120 in a state where a plurality of document cartridges 114 are stacked as shown. Of course, the document cartridge 114 is built in the document (D), respectively. When the carriage 110 is completed, the chamber 120 is closed by the door 122. As such, when the chamber 120 is sealed, the controller 170 starts operation according to the contents input through the touch screen. That is, the controller 170 operates the above-described components according to the input contents.

Referring to FIG. 2, as the aforementioned controller starts to operate, the heater 124 of the chamber 120 operates together with the temperature sensor TS (S22 of FIG. 5). The temperature of 120 is heated to 15 ° C. At this time, the heater 124 is operated until the temperature of the chamber 120 is 15 ℃ corresponding to the primary set temperature. In addition, the heater 124 is operated until 20 minutes corresponding to the primary heating time. (S23 of Fig. 5) That is, the heater 124 is the temperature of the chamber 120 is 15 ℃ or more, heating time When 20 minutes or more, the operation is stopped together with the temperature sensor TS. (S24 of FIG. 5) Of course, the primary set temperature of the heater 124 is detected by the temperature sensor TS, and the heater 124. The primary heating time of is measured by a timer (not shown) of the controller described above. Thus, as the heater 124 heats the chamber 120, the chamber 120 and the document D embedded in the chamber 120 are dried.

Here, the first set temperature of the heater 124 described above can be set within the range of 12 ℃ to 18 ℃, the first heating time of the above-described heater 124 can be set within the range of 10 minutes to 90 minutes. have.

Subsequently, when the chamber 120 is dried by the heater 124, the exhaust pipe 162 of the gas discharge unit 160 is opened by the shield valve 162a. (S25 in Fig. 5) And the gas discharge unit The vacuum pump 166 of 160 vacuums the chamber 120 through the gas collection tank 164. At this time, as shown in FIG. 3, the pressure sensor PS installed in the chamber 120 operates together with the vacuum pump 166. (S26 of FIG. 5) The vacuum pump 166 operating as described above is the chamber 120. ) Until it reaches the set pressure and the set vacuum time. (S27 in Fig. 5)

At this time, the set air pressure of the chamber 120 is about 1 torr, and the set vacuum time is about 20 minutes. That is, the vacuum pump 166 stops the operation when the chamber 120 is vacuumed at about 1 Torr and vacuumed for about 20 minutes. (S28 of FIG. 5) Of course, the set air pressure of the chamber 120 is a barometric pressure sensor ( PS) and the set vacuum time of the chamber 120 is measured by a timer (not shown) of the controller described above. When the operation of the vacuum pump 166 is stopped by the air pressure and the vacuum time of the chamber 120, the shutoff valve 162a closes the exhaust pipe 162. (S29 in Fig. 5) Therefore, the chamber 120 ) Maintains a vacuum.

Here, the set air pressure of the chamber 120 may be set within a range of 1 to 2 torr, and the set vacuum time of the chamber 120 may be set within a range of 10 minutes to 90 minutes.

On the other hand, the bet of the chamber 120 is discharged from the chamber 120 by the vacuum of the vacuum pump 166, and then passes through the exhaust pipe 162 and the gas collection tank 164 of the vacuum pump 166 It is discharged through an outlet not shown. At this time, the moisture of the document (D) embedded in the chamber 120 is also discharged. Thus, the bet of the chamber 120 and the moisture of the document D are removed.

On the other hand, the above-described gas discharge unit 160 may be interlocked with the heater 124 described above. That is, the gas discharge unit 160 may operate simultaneously with the heater 124, or alternatively, the gas discharge unit 160 may operate during the operation of the heater 124 or may operate before the heater 124. In other words, when the heater 124 and the gas discharge unit 160 interlock, the chamber 120 is dried while being vacuumed while removing the bet.

Subsequently, if the chamber 120 maintains the vacuum state as described above as the exhaust pipe 162 of the gas discharge unit 160 is shielded, the stirrer 132 provided in the deoxidation tank 130 may remove the deoxidation liquid. (S32 of FIG. 5) Accordingly, the magnesium oxide of the precipitated deoxidation liquid is circulated by the stirrer 132 and stirred at an appropriate ratio with the volatile carrier. The stirrer 132 operates until the stirring time reaches the set stirring time, and then stops the operation. (S33 of FIG. 5 and S34 of FIG. 5) Of course, the set stirring time of the stirrer 132 is described above. Measured by a timer (not shown) of the controller. At this time, the set stirring time of the stirrer 132 is about 5 minutes. However, the set stirring time can be set within the range of 1 minute to 90 minutes as needed.

On the other hand, the stirrer 132 may be linked to the heater 124 or the gas discharge unit 160 described above. That is, the stirrer 132 may stir the deoxidation liquid while the chamber 120 is heated or vacuumed. In addition, the stirrer 132 may be configured to operate separately without interworking with other components. That is, the stirrer 132 may be configured to automatically perform stirring for a set time when the set time is independent of other components.

Subsequently, when stirring of the deoxidation liquid is completed as described above, the supply pipe 142 of the deoxidation liquid supply unit 140 is opened by the intermittent valve 142a. (S35 of FIG. 6), and shown in FIG. 3. The water level sensor WS operates for measuring the water level (S36 in FIG. 6). At this time, the stirred deoxidation liquid of the deoxidation tank 130 maintains the vacuum state as described above. Supplied to the chamber 120 by a vacuum of 120. That is, the deoxidation liquid is supplied to the chamber 120 via the supply pipe 142 by the vacuum pressure of the chamber 120.

In this way, the deoxidation liquid supplied by the vacuum pressure is filled in the chamber 120, the filling level is measured by the water level sensor (WS S37). In this case, the level of the chamber 120 is set to the level When reaching, the supply pipe 142 is shielded by the intermittent valve 142a. (S38 in Fig. 6) Therefore, the supply of the deoxidation liquid is stopped.

On the other hand, the filling level of the deoxidation liquid filled in the chamber 120 can be controlled through the intermittent valve 142a of the supply pipe 142 described above. That is, the deoxidation liquid may be configured to be supplied to the chamber 120 only during the set time by setting the opening time of the control valve 142a.

In this way, when setting the opening time of the intermittent valve 142a, the intermittent valve 142a may be opened only for a set time to control the amount of deoxidation liquid filled in the chamber 120. Accordingly, the chamber 120 is filled with only the deoxidizing liquid in proportion to the opening time of the control valve 142a.

Therefore, the filling level of the chamber 120 is determined according to the opening time of the control valve 142a. Of course, when controlling the filling level of the chamber 120 through the opening time of the intermittent valve 142a, the above-described water level sensor WS can be omitted. However, in the embodiment of the present invention, a case where the water level sensor WS is installed will be described as an example.

Subsequently, as described above, the deoxidation liquid filled in the chamber 120 is filled in the chamber 120 while being injected through the nozzle hole of the rail-shaped nozzle R shown in FIG. 3. At this time, the deoxidation liquid injected from the nozzle hole of the nozzle R deoxidizes the surface of the document embedded in the chamber 120. Then, the deoxidant liquid is filled in the chamber 120 to the set water level while deoxidizing the surface of the document to immerse the document.

On the other hand, documents that are immersed in the deoxidizing liquid is deoxidized as it penetrates into the deoxidizing liquid. That is, after the document is deoxidized by the deoxidizing liquid injected into the chamber 120, the document is deoxidized at the same time while being immersed in the deoxidizing liquid filled in the chamber 120. Of course, the deoxidizing liquid penetrates the document through the through hole H of the carriage 110 and the through hole 114a of the cartridge 114 loaded on the carriage 110 as shown in FIG. 3. Conduct.

At this time, the magnesium oxide of the deoxidation liquid mixed with the carrier solution of the deoxidation liquid penetrates between the cellulose tissues of the paper by the carrier solution, and deoxidizes while neutralizing the cellulose tissue.

Subsequently, as described above, when the supply pipe 142 is shielded and supply of the deoxidizing liquid from the chamber 120 is stopped, the vacuum release valve 166a mounted on the chamber 120 opens and operates the vacuum of the chamber 120. (S39a of FIG. 6) At this time, the barometric pressure sensor PS shown in FIG. 3 measures whether the atmospheric pressure of the chamber 120 reaches atmospheric pressure. (S39b of FIG. 6) Then, the vacuum release valve 166a. Is closed when the atmospheric pressure of the chamber 120 reaches atmospheric pressure. (S39c in FIG. 6)

Accordingly, the deoxidation liquid filled in the chamber 120 is left inside the chamber 120. At this time, the timer (not shown) of the controller described above measures whether the leaving time of the deoxidation liquid reaches the set leaving time. (S39d of FIG. 6) Here, the set leaving time is about 30 minutes. That is, the deoxidation liquid is left in the chamber 120 for about 30 minutes. Thus, the deoxidizing liquid deoxidizes the surface and the inside of the document for the left time.

When the deoxidation liquid leaving time elapses, the supply pipe 142 of the deoxidation liquid supply unit 140 and the recovery tube 152 of the deoxidation liquid recovery unit 150 are controlled by an intermittent valve 142a and an open / close valve 152a. (S42 of FIG. 6), and the supply pump 144 of the deoxidation liquid supply unit 140 pumps the deoxidant of the deoxidant tank 130 to be supplied to the chamber 120 through the supply pipe 142. (S43 in FIG. 6), that is, the deoxidation liquid supply unit 140 and the deoxidation liquid recovery unit 150 interlock at the same time.

Accordingly, the deoxidizer filled in the chamber 120 and the deoxidizer supplied through the supply pipe 142 are recovered to the deoxidizer tank 130 through the recovery pipe 152, and then again through the supply pipe 142. Supplied. In other words, the deoxidation liquid is circulated. Therefore, the deoxidation liquid filled in the chamber 120 flows while maintaining the set water level because supply and recovery of the deoxidation liquid occur at the same time. At this time, the document embedded in the chamber 120 is more smoothly re-evaporated by the flowing deoxidizing liquid.

On the other hand, the deoxidizing liquid supply unit 140 and the deoxidizing liquid recovery unit 150 operates until the deoxidizing liquid flow time reaches a set flow time. (S44 in Fig. 6) Such a deoxidizing liquid flow time is the controller described above. Measured by a timer (not shown).

Here, the set flow time is about 10 minutes, can be reset within the range of about 5 to 30 minutes through the touch screen of the controller shown in FIG. That is, the set flow time may be selected from a time within about 5 to 30 minutes.

On the other hand, the deoxidized liquid recovered through the recovery pipe 152 of the deoxidized liquid recovery unit 150 is recovered by the drop of the chamber 120 and the deoxidized liquid tank 130 as shown in FIG. . That is, the deoxidation liquid of the chamber 120 is recovered to the deoxidation tank 130 by the potential energy. At this time, the filter 156 of the deoxidation liquid recovery unit 150 removes foreign substances from the deoxidation liquid introduced into the deoxidation tank 130 through the recovery pipe 152. Here, foreign matter is an impurity generated in the deoxidation process of the document. That is, foreign matter discharged from the document.

Subsequently, when the deoxidation liquid flow is completed as described above, the supply pump 144 is stopped, and the supply pipe 142 is closed by the intermittent valve 142a. (S45 in Fig. 7) The deoxidant is continuously recovered to the deoxidant tank 130 through a recovery pipe 152 that maintains the open state. Therefore, the deoxidation liquid of the chamber 120 is almost recovered to the deoxidation tank 130. That is, the deoxidation liquid of the chamber 120 is almost recovered to the deoxidation tank 130 to be recycled.

On the other hand, the water level sensor WS shown in Figure 3 detects whether the level of the deoxidizing liquid filled in the chamber 120 is "0". (S46 in Fig. 7) And, the recovery pipe 152 of the deoxidizing liquid When the water level becomes "0", it is closed by the opening / closing valve 152a. (S52 of FIG. 7) At this time, the water level sensor WS stops the operation. (S53 of FIG. 7) It stops.

In this way, when the recovery of the deoxidation liquid is stopped, the heater 124 and the temperature sensor TS shown in FIG. 3 operate again to heat the chamber 120. (S62 of FIG. 7) Such a heater 124 is It operates until the temperature of the chamber 120 becomes 27 degreeC corresponding to a secondary set temperature. In addition, the heater 124 is operated until 20 minutes corresponding to the secondary heating time. (S63 in Fig. 7) That is, the heater 124, the temperature of the chamber 120 is 27 ℃ or more, heating time When 20 minutes or more, the operation is stopped together with the temperature sensor TS. (S24 of FIG. 7) Of course, the secondary set temperature of the heater 124 is detected by the temperature sensor TS and the heater 124. The secondary heating time of is measured by a timer (not shown) of the controller described above.

Here, the secondary set temperature of the heater 124 described above can be set within the range of 15 ℃ to 40 ℃, the secondary heating time of the heater 124 described above can be set within the range of 5 minutes to 90 minutes. have.

Meanwhile, as the heater 124 heats the chamber 120, the document D, which has been immersed in the deoxidizing liquid in the chamber 120, is dried. At this time, the carrier of the deoxidation liquid that has penetrated the document is more volatile by the heat of the heater 124. Thus, the carrier of the deoxidation liquid is converted to gas. That is, the deoxidation liquid except magnesium oxide is vaporized and converted into gas.

Subsequently, when the document D is dried by the heater 124, the condenser 168 of the gas discharge unit 160 operates the cooler 168b. (S72 in Fig. 7) Accordingly, the cooler 168b. The evaporator 168a cools the inside of the gas collecting tank 164. At this time, the exhaust pipe 162 of the gas discharge unit 160 is opened by the shielding valve 162a. (S73 of FIG. 7), and the vacuum pump 166 of the gas discharge unit 160 is the gas collection tank 164. The chamber 120 is evacuated through the exhaust pipe 162 and the exhaust pipe 162. (S74 of FIG. 7) The vacuum pump 166 thus operated not only operates until the air pressure of the chamber 120 reaches the set air pressure. , Until the set vacuum time is reached. (S75 in Fig. 7)

At this time, the set air pressure of the chamber 120 is about 1 torr, and the set vacuum time is about 6 hours. That is, the vacuum pump 166 stops the operation when the chamber 120 is evacuated to about 1 Torr and vacuumed for about 6 hours (S76 in FIG. 8). The set air pressure of the chamber 120 is 1 Torr to It can be set within 2 Torr. In addition, the set vacuum time of the chamber 120 may be set within a range of 2 hours to 12 hours.

Here, the set air pressure of the chamber 120 is detected by the barometric pressure sensor PS shown in FIG. 3 described above, and the set vacuum time of the chamber 120 is measured by a timer (not shown) of the aforementioned controller. When the operation of the vacuum pump 166 is stopped by the air pressure and the vacuum time of the chamber 120, the shutoff valve 162a closes the exhaust pipe 162. (S77 in Fig. 8) Therefore, the chamber 120 Maintains a vacuum.

Meanwhile, the vaporized deoxidation liquid in the chamber 120 generated by the heater 124 described above is discharged from the chamber 120 by the vacuum of the vacuum pump 166. At this time, the vaporized deoxidation liquid is collected in the gas collection tank 164 through the exhaust pipe 162. Of course, the vaporized deoxidation liquid is converted into condensed water by the cold air of the gas collecting tank 164 as the gas collecting tank 164 is cooled by the cooler 168b of the condenser 168 described above. That is, the vaporized deoxidation liquid is liquefied while being condensed for about 6 hours during which the vacuum pump 166 operates to be converted into deoxidation condensate.

On the other hand, the document put into the chamber 120 is completely dried without wrinkles as the carrier of the deoxidation liquid penetrated into the cellulose tissue of the paper is discharged from the chamber 120 while being rapidly volatilized by the vacuum pressure. Of course, the document is dried without wrinkling because the carrier of the deoxidation liquid is a highly volatile liquid unlike water.

On the other hand, the vacuum pump 166 of the gas discharge unit 160 described above may be linked to the heater 124 described above. That is, the vacuum pump 160 may operate simultaneously with the heater 124. Alternatively, the vacuum pump 160 may operate during the operation of the heater 124 or may operate before the heater 124. In other words, when the drying of the document is started by the heater 124, the gas discharge unit 160 may discharge the vaporized deoxidation liquid from the chamber 120 at the same time. In addition, the above-described cooler 168b of the gas discharge unit 160 may operate simultaneously with the above-described vacuum pump 166 or later.

Subsequently, as described above, as the exhaust pipe 162 is shielded, the chamber 120 which maintains the vacuum state is released by the vacuum release valve 166a. (S78a of FIG. 8) At this time, in FIG. The illustrated pressure sensor PS measures whether the air pressure of the chamber 120 reaches atmospheric pressure (S78b of FIG. 8). The vacuum release valve 166a operates when the air pressure of the chamber 120 reaches atmospheric pressure. (S78c in Fig. 8) In this way, when the operation of the vacuum release valve 166a is stopped, the air pressure sensor PS also ends the operation (S78d in Fig. 8).

Subsequently, the return pipe 182 of the return unit 180 is opened by the control valve 182a to transfer the deoxidized liquid condensed water generated in the gas collecting tank 164 to the deoxidized liquid tank 130 (FIG. 8). S82) The deoxidized condensate is transmitted by the drop of the gas collecting tank 164 and the deoxidizing tank 130. That is, deoxidant condensate is transmitted by potential energy. Therefore, the total amount of deoxidized liquid that has been filled in the chamber 120 is recovered in the deoxidized liquid tank 130 so as to be recycled.

On the other hand, the control valve 182a of the return unit 180 operates until the opening time of the return pipe 182 reaches the set opening time. (S83 in FIG. 8) And, when the opening time is reached, the return pipe (182 of FIG. 8) At this time, the set opening time of the return pipe 182 is about 10 minutes, and is measured by the timer (not shown) of the controller mentioned above. Of course, the set opening time can be adjusted as needed through the touch screen of the controller shown in FIG.

Subsequently, when the total amount of deoxidation condensate is recovered as described above, the evaporation gas pipe 192 of the evaporation gas recovery unit 190 connected to the gas collecting tank 164 and the deoxidation tank 130 described above is a flow control valve ( 192a) (S92 of FIG. 8). Thus, the cold air of the gas collecting tank 164, which has been previously cooled, is communicated to the deoxidation tank 130 through the evaporation gas pipe 192. That is, cold air flows into the deoxidation tank 130 through the evaporation gas pipe 92. Therefore, the evaporated deoxidant, ie, deoxidant vapor, present in the deoxidizer tank 130 is collected and condensed in the gas collection tank 164 through the evaporation gas pipe 192 due to convection caused by a temperature difference. Of course, the deoxidation vapor is collected in the gas collection tank 164 after passing through the exhaust pipe 162 of the gas discharge unit 160 through the evaporation gas pipe 192 is converted into deoxidized condensate.

On the other hand, the flow control valve 192a of the boil-off gas recovery unit 190 operates until the opening time of the boil-off gas pipe 192 reaches the set opening time. (S93 in FIG. 8), and reaches the set opening time. The boil-off gas pipe 192 is closed (S94 in FIG. 9). At this time, the cooler 168b of the condenser 168 cooling the gas collection tank 164 operates simultaneously with the closing of the boil-off gas pipe 192. Stop. Here, the set opening time of the boil-off gas pipe 182 is about 10 minutes and is measured by a timer (not shown) of the controller described above. Of course, the set opening time can be adjusted as needed through the touch screen of the controller shown in FIG.

Subsequently, when the boil-off gas pipe 192 is closed as described above, the return pipe 182 of the return unit 180 is opened by the control valve 182a, so that the deoxidation liquid generated in the gas collection tank 164 is generated. The condensate is transmitted to the deoxidation tank 130. (S82 'of FIG. 9) The deoxidized liquid condensate thus transmitted is recovered in the deoxidation tank 130 in such a way that it can be recycled.

On the other hand, the control valve 182a of the return unit 180 operates until the opening time of the return pipe 182 reaches the set opening time (S83 'in FIG. 9). The tube 182 is closed. (S84 'in FIG. 9) Therefore, the document immersion type document extracting device ends the operation. Here, the set opening time of the return pipe 182 is about 10 minutes and is measured by the timer (not shown) of the controller mentioned above. Of course, the set opening time can be adjusted as needed through the touch screen of the controller shown in FIG.

On the other hand, when the operation of the document extraction apparatus is terminated as described above, the driver removes the carrier 110 from the chamber 120 as shown in an enlarged view of FIG. 3, and then the document deoxidized and dried from the carrier 110 ( D) Take out. Therefore, the deoxidation of the document D is completed.

On the other hand, as described above, the deoxidation condensate generated in the gas collection tank 164 may be supplied to the deoxidation tank 130 through the drain valve 164a of the gas collection tank 164 as shown in FIG. 2. It may be. At this time, the deoxidation liquid condensed water discharged from the drain valve 164a is stored in the deoxidation liquid storage tank (not shown) and then supplied to the deoxidation tank 130 again. Of course, the deoxidation condensate is re-supplied through the deoxidation liquid inlet of the deoxidation tank 130, not shown.

The document deoxidation apparatus operating as described above includes a gas discharge unit 160 including a supply pump 144 of the deoxidation liquid supply unit 140, a condenser 168, and a return unit 180 among the above-described components. ) And the boil-off gas recovery unit 190 may be selectively employed as necessary. That is, the listed components may be optionally omitted as necessary. Of course, if some of the components are omitted, the above-described document extractor does not perform the operation corresponding to the omitted components.

In particular, when the above-described supply pump 144 is provided and the gas discharge unit 160 is omitted, the deoxidation liquid may be supplied to the chamber 120 using the supply pump 144. That is, the deoxidation liquid may be supplied at the pumping pressure of the supply pump 144 without using the vacuum pressure of the chamber 120.

In addition, as described above, the operation of flowing the deoxidizing liquid by operating the deoxidizing liquid supply unit 140 and the deoxidizing liquid recovery unit 150 may be omitted. In addition, the operation of leaving the deoxidizing liquid can also be omitted.

Meanwhile, FIG. 10 is a flowchart illustrating a document deoxidation method according to an embodiment of the present invention, FIG. 11 is a flowchart illustrating a bet removing step of the chamber shown in FIG. 10, and FIG. 12 is illustrated in FIG. 10. A flow chart showing the deoxidizer filling step into the chamber. FIG. 13 is a flowchart showing the deoxidizer flow step in the chamber shown in FIG. 10, FIG. 14 is a flowchart showing the vaporized deoxidant condensation step in the chamber shown in FIG. 10, and FIG. A flowchart illustrating the condensed deoxidant recovery step shown. The document deoxidation method according to an embodiment of the present invention will be described with reference to the drawings as follows, and the description will be described with reference to FIGS. 5 to 9 described above with reference to FIGS.

Referring to Figure 10, the document deoxidation method according to an embodiment of the present invention, the step of putting a document in the above-described chamber (S10); Removing the bet of the chamber (S20); Filling the chamber with a deoxidation solution (S30); Leaving the deoxidation liquid filled in the chamber (S30 ′); Flowing deoxidizing liquid in the chamber (S40); Recovering deoxidation liquid filled in the chamber (S50); Drying the document in the chamber (S60); Condensing the vaporized deoxidation liquid in the chamber (S70); Recovering the condensed deoxidation solution (S80); Condensing the evaporated deoxidation liquid of the deoxidation tank (S90); Recovering the condensed evaporative deoxidation solution (S80 ′); And removing the document from the chamber (S100).

In more detail, the step S10 of inserting a document into the chamber is a step in which the carriage 110 loaded with the document D is introduced into the chamber 120 as shown in an enlarged view of FIG. 3. to be. In addition, the step (S20) of removing the bet of the chamber includes a chamber drying step (S20-1) and a chamber vacuum step (S20-2) as shown in FIG. 11. The marked section.

In addition, the step (S30) of filling the chamber with deoxidizing liquid is a step of supplying the deoxidizing liquid stirring step (S30-1) and the stirred deoxidizing liquid stored in the deoxidizing tank as shown in FIG. 12 (S30-2). ), And is a section indicated by S30 of FIGS. 5 and 6. Then, the step (S30 ') of leaving the deoxidizing liquid filled in the chamber is a section indicated by the reference numeral S30' of FIG.

In addition, the step of flowing the deoxidizing liquid in the chamber (S40) is a step of supplying the deoxidizing liquid to the chamber as shown in FIG. 13 (S40-1) and recovering the deoxidizing liquid filled in the chamber (S40-2). It includes, and is a section denoted by S40 of FIGS. 6 and 7. In addition, the step (S50) of recovering the deoxidation liquid filled in the chamber is a section indicated by reference numeral S50 of FIG.

In addition, the step (S60) of drying the document in the chamber is a section denoted by S60 in FIG. In addition, the step (S70) of condensing the vaporized deoxidation liquid in the chamber includes a chamber vacuum step (S70-1) and a vaporized deoxidant collection and condensation step (S70-2), as shown in FIG. A section corresponding to S70 of FIGS. 7 and 8.

In addition, the step (S80) of recovering the condensed deoxidizer may include communicating cold air to the inside of the deoxidizer tank (S80-1) and collecting and condensing the evaporated deoxidizer as illustrated in FIG. 15 ( S80-2), which corresponds to S80 of FIG. 8. In addition, the step (S90) of condensing the evaporated deoxidation liquid of the deoxidation tank is a section corresponding to S90 of FIGS. 8 and 9, and the step (S80 ′) of recovering the condensed evaporative deoxidation liquid is illustrated in FIG. 9. It is a section corresponding to S80 '. Finally, the step of removing the document from the chamber (S100) is a step in which the carriage 110 is discharged from the chamber (D) as shown in enlarged in FIG.

On the other hand, removing the bet of the chamber among the steps shown in Figure 10 (S20); Leaving the deoxidation liquid filled in the chamber (S30 ′); Flowing deoxidizing liquid in the chamber (S40); Condensing the vaporized deoxidation liquid in the chamber (S70); Recovering the condensed deoxidation solution (S80); Condensing the evaporated deoxidation liquid of the deoxidation tank (S90); The step (S80 ') of recovering the condensed evaporative deoxidation liquid may be selectively adopted as necessary. In other words, the enumerated steps may be optionally omitted depending on situations such as the composition of the above-described components or the material of the deoxidation article. In this case, the steps indicated by the dashed-dotted line in the drawings are indicated by broken lines for easy understanding of the steps that may be optionally omitted.

Since the above embodiments are merely illustrative of preferred embodiments of the present invention, the scope of application of the present invention is not limited to the above, and appropriate modifications are possible within the scope of the same idea. Therefore, since the shape and structure of each component shown in the embodiment of the present invention can be carried out by deformation, it is natural that the modification of the shape and structure belong to the appended claims of the present invention.

The document deoxidation method according to the present invention as described above, since the documents are deoxidized at the same time using a plurality of chambers, it is possible to deoxidize a large number of documents at once for a short time, while unfolding the bookshelf of the documents as before Since the deoxidation is carried out by flowing the deoxidizing liquid without deoxidizing, it is possible not only to shorten the deoxidation time but also to easily and smoothly deoxidize the document as the deoxidizing liquid evenly penetrates into the document.

In addition, since the cover of the document is unfolded and fixed to the document holder, the document is placed in the carriage and placed in the chamber, so that the document can be easily introduced into the chamber.

In addition, the deoxidizing liquid is filled into the chamber by using the supply pump or the vacuum of the chamber, so that the deoxidizing liquid can be filled in various ways as necessary, and the deoxidizing liquid can be recovered through the deoxidizing liquid recovery process and vaporized. The deoxidizing liquid and the evaporated deoxidizing liquid can also be recovered, so that the deoxidizing liquid can be continuously used.

Claims (12)

In the chamber 120, which is connected to the heater 124 and isolates the carriage 110 on which the document D is loaded, from the outside, the deoxidant supply unit 140 having the control valve 142a and the supply pump 144 is provided. The deoxidizing liquid of the deoxidizing tank 130 is filled using the supply pipe 142, and the deoxidizing liquid is filled in the deoxidizing liquid through the collecting pipe 152 of the deoxidizing liquid recovering unit 150 having the on / off valve 152a. In the document dewatering method using a document immersion type document dehydration device to recover to the tank 130, Injecting the carriage (110) into the chamber (120) (S10); The deoxidizing liquid supply unit 140 including the supply pump 144 is operated to fill the deoxidizing liquid in the chamber 120 so that the document D loaded on the carriage 110 is submerged in the deoxidizing liquid. Step S30; Leaving (S30 ') the filled deoxidizing liquid in the chamber (120) such that the document (D) is deoxidized in the chamber (120); Operating the deoxidation liquid recovery unit 150 to recover deoxidized liquid left in the chamber 120 to the deoxidation tank 130 (S50); Operating the heater (124) to dry the document (D) in the chamber (120) in which deoxidation liquid has been recovered (S60); And And discharging the document (D) from the chamber (S100). In the chamber 120, which is connected to the heater 124 and isolates the carriage 110 on which the document D is loaded, from the outside, the deoxidant supply unit 140 having the control valve 142a and the supply pump 144 is provided. The deoxidizing liquid of the deoxidizing tank 130 is filled using the supply pipe 142, and the deoxidizing liquid is filled through the collecting pipe 152 of the deoxidizing liquid recovering unit 150 having the on / off valve 152a. In the document dewatering method using a document immersion type document dehydration device to recover to the tank 130, Injecting the carriage (110) into the chamber (120) (S10); The deoxidizing liquid supply unit 140 including the supply pump 144 is operated to fill the deoxidizing liquid in the chamber 120 so that the document D loaded on the carriage 110 is submerged in the deoxidizing liquid. Step S30; Operating the deoxidizing liquid supply unit 140 and the deoxidizing liquid recovering unit 150 so that the document D is deoxidized in the state of being submerged in the deoxidizing liquid, thereby flowing the deoxidizing liquid filled in the chamber 120. (S40); Stopping the operation of the deoxidation liquid supply unit 150 to recover the deoxidized liquid of the chamber 120 to the deoxidant tank 130 through the deoxidized liquid recovery unit 150 (S50); Operating the heater (124) to dry the document (D) in the chamber (120) in which deoxidation liquid has been recovered (S60); And And discharging the document (D) from the chamber (S100). The supply pipe 142 of the deoxidation liquid supply unit 140 having an intermittent valve 142a is used in the chamber 120 which is connected to the heater 124 to isolate the carriage 110 on which the document D is stored from the outside. Filling the deoxidizing liquid of the deoxidizing tank 130, and recovering the filled deoxidizing liquid into the deoxidizing tank 130 through the collecting pipe 152 of the deoxidizing liquid recovering unit 150 having the on / off valve 152a. And a document dewatering using a document immersion type document deoxidizer for discharging the bet of the chamber 120 through the exhaust pipe 162 of the gas discharge unit 160 having the vacuum pump 166 connected to the vacuum release valve 166a. In the method, Injecting the carriage (110) into the chamber (120) (S10); Operating the vacuum pump 166 of the heater 124 and the gas discharge unit 160 to heat and vacuum the chamber 120 into which the carriage 110 is introduced to remove bet (S20); The intermittent valve 142a of the deoxidizing liquid supply unit 140 is opened so that the document D loaded on the carriage 110 is submerged in the deoxidizing liquid, so that the vacuum pressure of the chamber 120 is transferred. Filling a deoxidation liquid into the chamber 120 through the supply pipe 142 (S30); The chamber 120 is released by releasing the vacuum of the chamber 120 through the vacuum release valve 166a of the gas discharge unit 160 so that the document D is deoxidized in the chamber 120. Leaving the deoxidation liquid filled in (S30 ′); Operating the deoxidation liquid recovery unit 150 to recover deoxidized liquid left in the chamber 120 to the deoxidation tank 130 (S50); Operating the heater (124) to dry the document (D) in the chamber (120) in which deoxidation liquid has been recovered (S60); And And discharging the document (D) from the chamber (S100). In the chamber 120, which is connected to the heater 124 and isolates the carriage 110 on which the document D is loaded, from the outside, the deoxidant supply unit 140 having the control valve 142a and the supply pump 144 is provided. The deoxidizing liquid of the deoxidizing tank 130 is filled using the supply pipe 142, and the deoxidizing liquid is filled through the collecting pipe 152 of the deoxidizing liquid recovering unit 150 having the on / off valve 152a. Document immersion document to be recovered to the tank 130, to discharge the bet of the chamber 120 through the exhaust pipe 162 of the gas discharge unit 160 having a vacuum pump 166 connected to the vacuum release valve 166a In the document deoxidation method using a deoxidizer, Injecting the carriage (110) into the chamber (120) (S10); The heater 124 and the vacuum pump 166 and the vacuum release valve 166a of the gas discharge unit 160 are sequentially operated according to a set time, thereby heating the chamber 120 into which the carriage 110 is introduced. And removing the bet of the chamber 120 by vacuum (S20); The chamber D is operated through the supply pipe 142 by operating the deoxidizing liquid supply unit 140 including the supply pump 144 so that the document D loaded on the carriage 110 is submerged in the deoxidizing liquid. Filling the deoxidizing solution into 120) (S30); Leaving (S30 ') the deoxidizing liquid filled in the chamber (120) such that the document (D) is deoxidized in the chamber (120); Operating the deoxidation liquid recovery unit 150 to recover deoxidized liquid left in the chamber 120 to the deoxidation tank 130 (S50); Operating the heater (124) to dry the document (D) in the chamber (120) in which deoxidation liquid has been recovered (S60); And And discharging the document (D) from the chamber (S100). In the chamber 120, which is connected to the heater 124 and isolates the carriage 110 on which the document D is loaded, from the outside, the deoxidant supply unit 140 having the control valve 142a and the supply pump 144 is provided. The deoxidizing liquid of the deoxidizing tank 130 is filled using the supply pipe 142, and the deoxidizing liquid is filled through the collecting pipe 152 of the deoxidizing liquid recovering unit 150 having the on / off valve 152a. Document immersion document to be recovered to the tank 130, to discharge the bet of the chamber 120 through the exhaust pipe 162 of the gas discharge unit 160 having a vacuum pump 166 connected to the vacuum release valve 166a In the document deoxidation method using a deoxidizer, Injecting the carriage (110) into the chamber (120) (S10); The heater 124 and the vacuum pump 166 and the vacuum release valve 166a of the gas discharge unit 160 are sequentially operated according to a set time, thereby heating the chamber 120 into which the carriage 110 is introduced. And removing the bet of the chamber 120 while vacuuming (S20). The chamber D is operated through the supply pipe 142 by operating the deoxidizing liquid supply unit 140 including the supply pump 144 so that the document D loaded on the carriage 110 is submerged in the deoxidizing liquid. Filling the deoxidizing solution into 120) (S30); The deoxidizing liquid supply unit 140 and the deoxidizing liquid recovery unit 150 are sequentially operated so that the document D is deoxidized in the state of being submerged in the deoxidizing liquid, thereby flowing the deoxidizing liquid filled in the chamber 120. To step (S40); Stopping the operation of the deoxidation liquid supply unit 140 to recover the deoxidation liquid of the chamber 120 to the deoxidation tank 130 through the deoxidation liquid recovery unit 150 (S50); Operating the heater (124) to dry the document (D) in the chamber (120) in which deoxidation liquid has been recovered (S60); And And discharging the document (D) from the chamber (S100). In the chamber 120, which is connected to the heater 124 and isolates the carriage 110 on which the document D is loaded, from the outside, the deoxidant supply unit 140 having the control valve 142a and the supply pump 144 is provided. The deoxidizing liquid of the deoxidizing tank 130 is filled using the supply pipe 142, and the deoxidizing liquid is filled through the collecting pipe 152 of the deoxidizing liquid recovering unit 150 having the on / off valve 152a. A document submerged document which is recovered to the tank 130 and discharges the bet of the chamber 120 through the exhaust pipe 162 of the gas discharge unit 160 having the vacuum pump 166 connected to the vacuum release valve 166a. In the document deoxidation method using a deoxidizer, Injecting the carriage (110) into the chamber (120) (S10); Operating the vacuum pump 166 of the heater 124 and the gas discharge unit 160 to heat and vacuum the chamber 120 into which the carriage 110 is introduced to remove bet (S20); The intermittent valve 142a of the deoxidizing liquid supply unit 140 is opened so that the document D loaded on the carriage 110 is submerged in the deoxidizing liquid, so that the vacuum pressure of the chamber 120 is transferred. Filling a deoxidation liquid into the chamber 120 through the supply pipe 142 (S30); The vacuum release valve 166a, the deoxidant supply unit 140 and the deoxidant recovery unit 150 of the gas discharge unit 160 are sequentially disposed so that the document D is deoxidized in the state submerged in the deoxidant. Operating to flow the deoxidized liquid charged inside the chamber 120 in which the vacuum is released (S40); Stopping the operation of the deoxidation liquid supply unit 140 to recover the deoxidation liquid of the chamber 120 to the deoxidation tank 130 through the deoxidation liquid recovery unit 150 (S50); Operating the heater (124) to dry the document (D) in the chamber (120) in which deoxidation liquid has been recovered (S60); And And discharging the document (D) from the chamber (S100). Through the supply pipe 142 of the deoxidizing liquid supply unit 140 having an intermittent valve 142a to the chamber 120 is connected to the heater 124 to isolate the carriage 110, the document (D) is stored from the outside. Filling the deoxidizing liquid of the deoxidizing tank 130, and recovers the filled deoxidizing liquid to the deoxidizing tank 130 through the recovery pipe 152 of the deoxidizing liquid recovery unit 150 having an opening and closing valve (152a) The exhaust gas of the chamber 120 is discharged through the exhaust pipe 162 of the gas discharge unit 160 having the vacuum release valve 166a and the vacuum pump 166, and the deoxidized liquid vaporized through the exhaust pipe 162. When this is discharged, the return unit 180 having the control valve 182a is collected and condensed by the vaporized deoxidation liquid discharged through the condenser 168 having the gas collection tank 164 cooled by the cooler 168b. In the document dewatering method using a document immersion type document dehydration device to recover to the deoxidation tank 130 through the return pipe 182 of, Injecting the carriage (110) into the chamber (120) (S10); Operating the vacuum pump 166 of the heater 124 and the gas discharge unit 160 to heat and vacuum the chamber 120 into which the carriage 110 is introduced to remove bet (S20); The intermittent valve 142a of the deoxidizing liquid supply unit 140 is opened so that the document D loaded on the carriage 110 is submerged in the deoxidizing liquid, so that the vacuum pressure of the chamber 120 is transferred. Filling a deoxidation liquid into the chamber 120 through the supply pipe 142 (S30); The vacuum of the chamber 120 is released through the vacuum releasing valve 166a of the gas discharge unit 160 so that the document D is deoxidized in the chamber 120, and the chamber 120 is released to the chamber 120. Leaving the deoxidized liquid charged (S30 ′); Operating the deoxidation liquid recovery unit 150 to recover deoxidized liquid left in the chamber 120 to the deoxidation tank 130 (S50); Operating the heater (124) to dry the document (D) in the chamber (120) in which deoxidation liquid has been recovered (S60); The vacuum pump 166 and the vacuum releasing valve 166a of the gas discharge unit 160 and the condenser 168 are sequentially operated according to a set time, and the heater 124 in the chamber 120 is operated. Collecting and condensing the deoxidized liquid vaporized in the gas collecting tank 164 (S70); Operating the return unit 180 to recover deoxidized liquid condensed by the condenser 160 to the deoxidation tank 130 (S80); And And discharging the document (D) from the chamber (120) from which the vaporized deoxidation liquid is removed (S100). In the chamber 120, which is connected to the heater 124 and isolates the carriage 110 on which the document D is loaded, from the outside, the deoxidant supply unit 140 having the control valve 142a and the supply pump 144 is provided. The deoxidation liquid of the deoxidation tank 130 is filled using the supply pipe 142, and the deoxidized liquid is deoxidized through the recovery tube 152 of the deoxidant recovery unit 150 having the open / close valve 152a. Recovered to the liquid tank 130, and through the exhaust pipe 162 of the gas discharge unit 160 having a gas collecting tank 164 and a vacuum pump 166 connected to the vacuum release valve 166a of the chamber 120 When the exhaust gas is discharged through the exhaust pipe 162 and the vaporized deoxidation liquid is discharged, the vaporized deoxidation liquid discharged through the condenser 168 having the gas collection tank 164 cooled by the cooler 168b is collected. And condensation, and the document immersion type document dehydration device recovers the deoxidation tank 130 through the return pipe 182 of the return unit 180 having the control valve 182a. In the document deoxidation method, Injecting the carriage (110) into the chamber (120) (S10); Operating the vacuum pump 166 of the heater 124 and the gas discharge unit 160 to heat and vacuum the chamber 120 into which the carriage 110 is introduced to remove bet (S20); The intermittent valve 142a of the deoxidizing liquid supply unit 140 is opened so that the document D loaded on the carriage 110 is submerged in the deoxidizing liquid, so that the vacuum pressure of the chamber 120 is transferred. Filling a deoxidation liquid into the chamber 120 through the supply pipe 142 (S30); The vacuum release valve 166a, the deoxidant supply unit 140 and the deoxidant recovery unit 150 of the gas discharge unit 160 are sequentially disposed so that the document D is deoxidized in the state submerged in the deoxidant. Operating to flow the deoxidized liquid charged inside the chamber 120 in which the vacuum is released (S40); Stopping the operation of the deoxidation liquid supply unit 140 to recover the deoxidation liquid of the chamber 120 to the deoxidation tank 130 through the deoxidation liquid recovery unit 150 (S50); Operating the heater (124) to dry the document (D) in the chamber (120) in which deoxidation liquid has been recovered (S60); The vacuum pump 166 and the vacuum releasing valve 166a of the gas discharge unit 160 and the condenser 168 are sequentially operated according to a set time, and the heater 124 in the chamber 120 is operated. Collecting and condensing the deoxidized liquid vaporized in the gas collecting tank 164 (S70); Operating the return unit 180 to recover deoxidized liquid condensed by the condenser 160 to the deoxidation tank 130 (S80); And And discharging the document (D) from the chamber (120) from which the vaporized deoxidation liquid is removed (S100). In the chamber 120, which is connected to the heater 124 and isolates the carriage 110 on which the document D is loaded, from the outside, the deoxidant supply unit 140 having the control valve 142a and the supply pump 144 is provided. The deoxidizing liquid of the deoxidizing tank 130 is filled using the supply pipe 142, and the deoxidizing liquid is filled through the collecting pipe 152 of the deoxidizing liquid recovering unit 150 having the on / off valve 152a. Recovered to the tank 130, through the exhaust pipe 162 of the gas discharge unit 160 having a gas collecting tank 164 and a vacuum pump 166 connected to the vacuum release valve 166a of the chamber 120 When the exhaust gas is discharged through the exhaust pipe 162 and the vaporized deoxidation liquid is discharged, the vaporized deoxidation liquid discharged through the condenser 168 having the gas collection tank 164 cooled by the cooler 168b is collected. And condensation, and the document immersion type document dehydration device recovers the deoxidation tank 130 through the return pipe 182 of the return unit 180 having the control valve 182a. In the document deoxidation method, Injecting the carriage (110) into the chamber (120) (S10); The chamber D is operated through the supply pipe 142 by operating the deoxidizing liquid supply unit 140 including the supply pump 144 so that the document D loaded on the carriage 110 is submerged in the deoxidizing liquid. Filling the deoxidizing solution into 120) (S30); Leaving (S30 ') the deoxidizing liquid filled in the chamber (120) such that the document (D) is deoxidized in the chamber (120); Operating the deoxidation liquid recovery unit 150 to recover deoxidized liquid left in the chamber 120 to the deoxidation tank 130 (S50); Operating the heater (124) to dry the document (D) in the chamber (120) in which deoxidation liquid has been recovered (S60); The vacuum pump 166 and the vacuum releasing valve 166a of the gas discharge unit 160 and the condenser 168 are sequentially operated according to a set time, and the heater 124 in the chamber 120 is operated. Collecting and condensing the deoxidized liquid vaporized in the gas collecting tank 164 (S70); Operating the return unit 180 to recover deoxidized liquid condensed by the condenser 160 to the deoxidation tank 130 (S80); And And discharging the document (D) from the chamber (120) from which the vaporized deoxidation liquid is removed (S100). The method according to any one of claims 1, 4 or 9, The deoxidizing liquid supply unit 140 and the deoxidizing liquid recovery unit 150 including the supply pump 144 may be deoxidized so that the document D deoxidized by the deoxidizing liquid left in the chamber 120 is deoxidized. Operating, flowing the deoxidizing liquid filled in the chamber 120 (S40); Document immersion method using a document immersion type document deoxidation device further comprising. In the chamber 120, which is connected to the heater 124 and isolates the carriage 110 on which the document D is loaded, from the outside, the deoxidant supply unit 140 having the control valve 142a and the supply pump 144 is provided. The deoxidizing liquid of the deoxidizing tank 130 is filled using the supply pipe 142, and the deoxidizing liquid is filled through the collecting pipe 152 of the deoxidizing liquid recovering unit 150 having the on / off valve 152a. Recovery of the chamber 120 through the exhaust pipe 162 of the gas discharge unit 160 having a gas collecting tank 164 and a vacuum pump 166 connected to the vacuum release valve 166a and recovered to the tank 130. When the vaporized deoxidation liquid is discharged through the exhaust pipe 162, the vaporized deoxidation liquid discharged through the condenser 168 having the gas collection tank 164 cooled by the cooler 168b is collected. And condensation, and the document immersion type document dehydration device recovers the deoxidation tank 130 through the return pipe 182 of the return unit 180 having the control valve 182a. In the document deoxidation method, Injecting the carriage (110) into the chamber (120) (S10); The chamber D is operated through the supply pipe 142 by operating the deoxidizing liquid supply unit 140 including the supply pump 144 so that the document D loaded on the carriage 110 is submerged in the deoxidizing liquid. Filling the deoxidizing solution into 120) (S30); The deoxidizing liquid supply unit 140 and the deoxidizing liquid recovery unit 150 are sequentially operated so that the document D is deoxidized in the state of being submerged in the deoxidizing liquid, thereby flowing the deoxidizing liquid filled in the chamber 120. To step (S40); Stopping the operation of the deoxidation liquid supply unit 140 to recover the deoxidation liquid of the chamber 120 to the deoxidation tank 130 through the deoxidation liquid recovery unit 150 (S50); Operating the heater (124) to dry the document (D) in the chamber (120) in which deoxidation liquid has been recovered (S60); The vacuum pump 166 and the vacuum releasing valve 166a of the gas discharge unit 160 and the condenser 168 are sequentially operated according to a set time, and the heater 124 in the chamber 120 is operated. Collecting and condensing the deoxidized liquid vaporized in the gas collecting tank 164 (S70); Operating the return unit 180 to recover deoxidized liquid condensed by the condenser 160 to the deoxidation tank 130 (S80); And And discharging the document (D) from the chamber (120) from which the vaporized deoxidation liquid is removed (S100). The method according to claim 9 or 11, The heater 124 and the vacuum pump 166 and the vacuum release valve 166a of the gas discharge unit 160 are sequentially operated according to a set time, thereby heating the chamber 120 into which the carriage 110 is introduced. And vacuuming (S20) to remove the bet of the chamber (120).

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