JP4733561B2 - Storage medium processing method and storage medium processing apparatus - Google Patents

Description

  The present invention provides a storage medium in which the storage medium layer is covered with a resin member in a sandwich shape, for example, a DVD, CD, CD-R, CD-W, MO, HDD, etc. A storage medium processing method using a shock wave generated at the time of blasting, in which a resin member is peeled and data of the storage medium is removed, and at the same time, a metal or the like constituting the storage medium layer and the resin member can be recycled And a storage medium processing apparatus. That is, the present invention takes into account the security of data stored in the storage medium, and at the same time, a storage medium processing method using a blast that can separate and recycle the metal member and the resin member of the storage medium layer, and The present invention relates to a storage medium processing apparatus.

  Many storage media stacked in a disk shape have a sandwich-like three-layer structure including a storage medium layer including a reflective layer, a dielectric layer, and a storage layer, and a resin member that protects the storage medium layer. . The storage medium stores copyrighted data such as computer programs, music, and images, company information, personal information, and secret information related to inventions and finances. Data stored in the storage medium is discarded after use.

For example, in the method for recovering plastic from an optical disc in JP-A-2003-25330, an optical disc or a coarsely pulverized product thereof is stirred in an acidic solution, and then the optical disc or the coarsely pulverized product is stirred in an organic solvent, The protective film is dissolved and separated from the plastic substrate, and the plastic pieces are collected.
JP 2003-25330 A

  A storage medium storing the above data may be discarded as it is, but in many cases, the data is read by being physically destroyed, such as mechanical cutting such as a shredder or cutter, or drilling with a drill. It is discarded after being processed so that it is not released. In the disposal method, fresh disposal as incombustible waste or incineration is performed. In addition, a part of the storage medium is recovered by putting it in a blast furnace. However, the present processing method is not completely recycled because the resin member occupying most of the weight ratio is burned and decomposed into carbon dioxide gas and water.

  The metal component contained in the storage medium is separated from the resin member and recycled by re-smelting, and the resin portion from which the metals have been removed is regenerated and recycled. The current situation is not. The obstacle to complete recycling is the structure in which the storage medium layers containing metal and metal ions are sandwiched between the upper and lower resin members that form the base of the storage medium, and are firmly bonded to each other from both sides. This is because the acid penetrates deeply into the storage medium layer and metal and metal ions cannot be extracted. If a strong acid with an oxidizing action is used for the storage medium, the resin member is eroded and metal and metal ions can be recovered, but at the same time, the resin member deteriorates and cannot be recycled. There is.

  The storage medium is composed of three layers of resin member-storage medium layer-resin member, and each layer is firmly bonded, so that it is not easy to separate them. Therefore, the storage medium is pulverized while maintaining the three-layer structure by an ordinary mechanical cutting and crushing method. The crushed product is put into a blast furnace to recover metal, and the resin member is decomposed into carbon dioxide and water as fuel. As a result, the storage medium can recycle the metal, but cannot recycle the resin member.

  When the metal is extracted with a solution such as an acid, the storage medium is ideal if the resin can be separated and recycled as a resin and the metal as a metal. However, mechanical crushing has a problem that the solution does not easily penetrate into a very thin memory layer. Further, when the storage medium storing important data is taken out of the storage container and processed, the stored data may be leaked. The blast furnace and mechanical crushing must be taken out of the storage container when processing, so there is a risk that data will be leaked outside due to human problems. The storage in which the storage medium is stored can be put into the blast furnace as it is, but is made firmly in consideration of theft prevention.

  In order to solve the above-described problems, the present invention is based on the explosive power and shock wave when a storage medium is stored in a processing box, and a part or all of the explosive is set in the processing box and blasted. It is an object of the present invention to provide a storage medium processing method and a storage medium processing apparatus in which a storage medium layer and a resin member are separated. Further, the present invention pays attention to a difference in density between the storage medium layer and the resin member, a difference in shock wave velocity, a difference in propagation of the shock wave, and a difference in reflection of the shock wave, and the three layers of the storage medium layer and the resin member. The present invention has an object to provide a storage medium processing method and a storage medium processing apparatus capable of simultaneously erasing and recycling data on a storage medium when a force such as peeling is applied to the storage medium layer. .

(First invention)
According to a first aspect of the present invention, there is provided a storage medium processing method comprising: blasting a storage medium in which the storage medium layer is covered with a resin member in a sandwich shape, and separating the storage medium layer and the resin member; Simultaneously with the removal of data, the metal of the storage medium layer and the resin member can be recycled, and the shock wave of the explosive is generated in the processing box in which the storage medium is stacked and stored. said to proceed in the surface direction of the storage medium, and a process of setting the explosives in the storage medium in the processing box housed stacked in layers in the lamination direction of the storage medium, then blasting the explosive, a process of shock wave generated at that time is generated so as to travel in the plane direction of the storage medium, a process of injecting a treatment solution for extracting the collected material within the processing box into the processing box, in the processing box With recovering Luo resin member, and a process for recovering metals from the processing liquid.

(Second invention)
A storage medium processing apparatus according to a second aspect of the present invention provides a storage medium layer in which a storage medium layer is covered with a resin member in a sandwich-like manner, and the storage medium layer and the resin member are peeled to delaminate the storage medium layer. At the same time as removing the data, the storage medium layer metal and the resin member can be recycled, and the storage medium is stored in a stacked manner in the storage box. The explosive is set in the stacking direction of the storage medium and arranged so that the shock wave generated when the storage medium is blown up proceeds in the surface direction of the storage medium, and at least an initiation means for exploding the explosive. ing.

(Third invention)
In the storage medium processing apparatus of the third invention, the explosive of the second invention has protrusions protruding in the stacking direction of the storage medium at the upper and lower portions of the storage medium stacked in the processing box. It is characterized by that.

(Fourth invention)
In the storage medium processing apparatus of the fourth invention, the size of the upper and lower protrusions of the explosive in the third invention is 5 mm or more.

(Fifth invention)
In the storage medium processing apparatus of the fifth invention, the processing boxes of the second to fourth inventions are double- covered and protected by other boxes.

(Sixth invention)
In the storage medium processing device of the sixth aspect, the processing boxes of the second to fourth aspects are for theft prevention, storage and management for maintaining the security of the storage medium, and the storage medium is stored in the storage state. It is a wire mesh or perforated steel plate that can be blown up.

(Seventh invention)
According to a seventh aspect of the present invention, there is provided a storage medium processing apparatus comprising: blasting a storage medium in which a storage medium layer is covered with a resin member in a sandwich shape, and separating the storage medium layer and the resin member to At the same time as removing data, the storage medium layer metal and the resin member are recycled, and the storage medium is stacked and stored, and the periphery of the storage medium is easily cut. enclose in the thickness of the wire mesh that can not be, and the storage basket that does not work once housed the storage medium,
A processing box covering the storage trough, and an explosive which is set in the processing box in the stacking direction of the storage medium and arranged so that a shock wave generated when the storage medium is blown proceeds in the surface direction of the storage medium. And at least an initiation means for detonating the explosive.

(Eighth invention)
In the storage medium processing apparatus according to the eighth aspect of the present invention , a strong metal frame or a strong metal frame in which the storage basket from which the storage medium once stored cannot be taken has sufficient strength to withstand internal explosions. wherein the synthetic resin frame is a structure comprising also serves as a pasted antitheft function metal plate or rigid plastic plate.

  According to the present invention, by setting the explosive in the stacking direction of the storage medium, the shock wave works to peel off the storage medium layer and the resin member, so that data security and material recycling can be performed simultaneously. Since the separation of the storage medium layer and the resin member by the shock wave does not pulverize the resin member, a high-quality resin can be regenerated.

  According to the present invention, the explosive explosive power of explosives and pyrotechnics is caused to act via water or air and explode inside or outside the processing box, so that the storage medium is not taken out from the processing box. Data security can be maintained. By using a wire mesh or a steel plate with a hole in the processing box, the explosive power of explosives and pyrotechnics acting from the inside or outside of the processing box via water or air can be used. Explosion is possible without taking out. The processing box is a storage box that performs processing when the storage medium is blown up, prevents the storage medium from flowing out, and is also a collection box that recovers metal and resin.

  According to the present invention, by appropriately adjusting the strength and explosion power of the processing box, the processing box itself can be used as an explosion container, and without taking out the storage medium from the processing box by a blast or explosive force using water or air as a medium. The storage medium layer and the resin member can be peeled off.

  According to the present invention, the storage medium differs in the manner of the action of the shock wave due to the difference in density and sound speed between the storage medium layer and the resin member, and the separation occurs along the boundary surface of the storage medium layer. Separation and recovery of the resin member are extremely easy.

(First invention)
According to the storage medium processing method of the first aspect of the present invention, the metal and resin members of the storage medium layer constituting the storage medium can be recycled at the same time as the data in the storage medium is removed. In the storage medium, the storage medium layer and the resin member are covered in a sandwich shape, and the storage medium layer and the resin member are separated separately by being blown up in water or in air. In the first process, after the storage media are stacked and stored in a processing box, water is added as necessary, and a long and narrow explosive is set in the stacking direction of the storage media. In the second process, the explosive is blown up, and a shock wave generated at that time advances in the surface direction of the storage medium. The explosion of the explosive is peeled off as if the storage medium layer and the resin member were dropped into three sheets. Since the shock wave has a large force transmitted in water or in the air, the storage medium layer and the resin member are different from each other, so that the adhesive surfaces in contact with each other are broken so as to be separated from each other.

  In the third treatment, after exploding the explosive, a treatment liquid for extracting a collected material such as metal, for example, an acid such as nitric acid or hydrochloric acid is injected into the treatment box. The treatment liquid dissolves the metal adhering to the storage medium layer. In the fourth treatment, the resin member, for example, polyethylene terephthalate (PET), polycarbonate, or the like is recovered from the treatment box in its original shape, and a metal (for example, aluminum, silver, etc.), metal from the treatment liquid is collected. Collect ions and so on. The present invention removes the data in the storage medium by peeling the storage medium layer and the resin member by the progress of the shock wave generated by the stacking direction of the storage medium and the explosive setting direction, and at the same time, the storage medium layer The metal and resin members can be easily recycled.

  In particular, since the resin member is not shredded like a crushed piece and remains the size of the storage medium, it is in a preferable state as a recycled resin. Examples of the storage medium include DVD, CD-R, CD-W, MO, and HDD. The explosive that generates the shock wave may be a general industrial explosive such as dynamite or a hydrous explosive. Many storage media in the processing box in the present invention can be arranged in a stacked state. In addition, the explosive can be arranged in each central hole of the storage medium, or a plurality of explosives can be arranged between the storage medium.

(Second invention)
The storage medium processing apparatus of the second invention is capable of removing data in the storage medium and simultaneously recovering the metal and the like of the storage medium layer and the resin member. When the storage medium in which the storage medium layer is covered with a resin member in a sandwich shape is blown up, data is removed and the storage medium layer and the resin member are peeled off at the same time. In the processing box for performing the processing, the storage media are stacked and stored in a stacked manner, and are filled with water as necessary. The explosive that peels off the storage medium is set in the stacking direction of the storage medium in the processing box, and when it is blown up, a shock wave is generated so as to travel in the surface direction of the storage medium. It arrange | positions so that a medium layer and a resin member may peel.

  The explosive is divided so that the explosive is exploded by an initiation means and the storage medium layer is peeled off without being shattered from the resin member. The detonation means includes an electric detonator, an industrial detonator and a conductor, and a detonator with a conductor. The electric detonator, blaster, and detonator with a lead wire remotely detonate a dedicated igniter at a safe position. The processing box is made of steel, reinforced plastic or the like, and has a sealed structure, and the explosive can be disposed inside or outside. Further, when the explosive is arranged outside, a structure such that a shock wave such as a wire mesh can act on the inside of the processing box from the outside. The processing box can be a water tank, pond, artificial pond or the like made of steel.

(Third invention)
In the storage medium processing apparatus of the third invention, a part of the long and narrow explosive protrudes from the upper and lower portions of the storage medium stacked in the processing box of the second invention. The partial protrusion at the upper and lower portions of the long and narrow explosive is advantageous when the storage medium layer and the resin member are peeled off.

(Fourth invention)
In the storage medium processing apparatus of the fourth invention, the explosive amount of the explosive in the third invention is the result of an experiment conducted by the present applicant. Could be done.

(Fifth invention)
The storage medium processing apparatus of the fifth invention is protected by another box so as to be doubled to prevent damage to the processing box or leakage of water or processing liquid.

(Sixth invention)
The processing box in the storage medium processing apparatus according to the sixth aspect of the present invention has a structure that cannot be taken out once inserted into the processing box for theft prevention, storage and management for maintaining the security of the storage medium. The storage medium can be blown up in the storage state without opening the storage. Therefore, in the processing box, data protection and storage medium recycling are achieved at the same time.

(Seventh invention)
The storage medium processing device of the seventh invention is a storage basket surrounded by a metal mesh so that the storage medium is not taken outside, and the explosive is outside the storage container and in a processing box covering the storage container. It differs from the second invention in that it is arranged. As in the second invention, the seventh invention configured as described above removes the data in the storage medium by separating the storage medium layer and the resin member, and at the same time, the metal and the resin member of the storage medium layer. Can be recycled. The storage basket is made of a thick wire or steel that is not easily cut. The storage trough may be a steel plate having a large number of holes. The storage basket is covered with a processing box, and an explosive is set in the processing box in the stacking direction of the storage medium. In the explosive, a shock wave generated at the time of blasting advances in the surface direction of the storage medium, and the storage medium layer and the resin member are separated.

(Eighth invention)
In the storage medium processing apparatus of the eighth invention, the storage basket of the seventh invention is configured such that a metal plate or a strong synthetic resin plate is attached to a strong metal frame or a strong synthetic resin frame. The storage trough has a strength that does not easily break with explosives and has a structure that also has an anti-theft function. The storage trough has a locking device that can be used again after recovering the metal or the like of the storage medium layer or the resin member, and cannot be opened easily as a function of preventing the theft of the storage medium. It is attached.

  FIG. 1 is a perspective view having a partial cross-section for explaining a set state when a storage medium is blown up. In FIG. 1, a storage medium peeling device 11 includes a storage box 14 for storing storage media 12 stacked in a stacked state, a tank 15 for storing the storage box 14 so as to cover the storage box 14, and the storage medium. The explosive 13 is disposed in 12 central holes 121, the detonator 131 for blasting the explosive 13, and the detonator 133 for detonating the explosive 13 with a conducting wire 132 connected to the detonator 131. The explosive 13 was a string-shaped explosive wire with an explosion reaction speed of 6000 m / sec or more. The propagation speed of the shock wave at the time of explosion is 1500 m / sec or more in water and 340 m / sec or more in air.

  The storage box 14 not only simply stores the storage medium 12 but also becomes a processing box when the data in the storage medium 12 is destroyed and recycled at the same time. The storage box 14 becomes a recovery box when recovering a metal such as silver after the blasting process. Therefore, in this specification, the storage box, the processing box, and the collection box are the same, but the names are changed depending on the occasion.

  The storage box 14 is provided with storage medium mounting means 141 for mounting the storage medium 12 stacked in a stacked state, and water 142 can be filled when the storage medium 12 is processed. . For example, the explosive 13 is inserted into the central hole 121 of the storage medium 12, the lower part enters the inside of the storage medium mounting means 141, and the upper part protrudes simultaneously with being fixed by the explosive fixing means 134. A detonator 131 is attached to the top of the explosive 13. The detonator 131 is connected to the detonator 133 through a lead wire 132. The storage box 14 is fixed to a processing box fixing means 151 provided inside the tank 15. The lid of the storage box 14 and the tank 15 is omitted, and the lid is provided with a small hole for receiving the lead wire 132. In addition, the explosive fixing means 134 may be an adhesive tape or a resin member with an adhesive.

  The storage medium 12 is stored in the storage box 14 in a form in which, for example, DVD-Rs having a diameter of 120 mm are stacked. The storage box 14 is configured such that a lid (not shown) cannot be freely opened, and the storage medium 12 cannot be taken out. Since the explosive 13 has a diameter of about 8 mm, the central hole 121 of the storage medium 12 is preferably about 10 mm to 20 mm. The explosive 13 is inserted from the central hole 121 of the storage medium 12 and fixed by the explosive fixing means 134 so as to be installed at the center of the storage medium 12. The storage medium 12 required, for example, about 20 mmg of explosive 13 per 10 sheets. The end of the explosive 13 is pulled out of the processing box 14 and is remotely detonated by the detonator 133 with a No. 6 instantaneous electric detonator attached.

  As the number of explosives 13 increases, the explosive power increases and the storage medium 12 can be easily peeled off. The storage box 14 can be submerged in a tank 15 filled with water, if necessary. The water depth in the tank 15 should be more than the extent that the storage box 14 and the explosive 13 are hidden. The storage box 14 is a bottomed box having an inner dimension of 130 mm × 130 mm and a height of 100 mm, and contains 50 DVD-Rs with a diameter of 120 mm. A hole having a diameter of 15 mm was provided in the upper lid portion of the storage box 14, and an explosive 13 having a length of 150 mm was inserted therein. The upper portion of the explosive 13 is about 40 mm so that it comes out of the storage box 14. A No. 6 instantaneous electric detonator was attached to the upper part of the explosive 13, and a remote detonation was performed with the detonator 133.

  FIG. 2A is a diagram for explaining a storage medium, and FIG. 2B is a diagram for explaining a state in which the storage medium is peeled into a storage medium layer and a resin member. As shown in FIG. 2A, the storage medium 12 has a storage medium layer 123 inside, and the storage medium layer 123 is covered with resin members 122 and 124. The resin member 122 is printed with a label or the like on a resin layer such as polyethylene terephthalate or polycarbonate. The resin member 124 is substantially the same member as the resin member 122 and has a thickness as a substrate. The storage medium 12 is peeled into the storage medium layer 123 and the resin members 122 and 124 by a shock wave generated from the explosive 13.

  FIG. 3 (a) is an embodiment of the present invention, and illustrates a state in which an explosive is placed in the central hole of the stacked storage medium. FIG. 3 (b) is a diagram for explaining the state of a shock wave due to the explosion of the explosive. In the figure, (C) is also a plan view. The elongated rod-shaped or string-shaped explosive 13 is fixed to an approximate center in the central hole 121 of the stacked storage medium 12 by an explosive fixing means 134 (see FIG. 1). The explosive 13 has protrusions indicated by a and b at the lower and upper portions of the stacked storage media 12. The sizes of the protrusions a and b differ depending on the state in which the explosive 13 is stacked, but when the thickness is 5 mm or more, the peeled state between the storage medium layer 123 and the resin members 122 and 124 is good.

  3 (b) and (c) show shock waves generated by the explosion of the explosive 13, wherein (b) is the cross-sectional direction of the explosive 13 and (c) is the plane direction. The shock wave travels from the direction A to the direction C shown in FIG. For example, the storage medium 12 having an outer diameter of 120 mm, a diameter of the center hole 121 of 14 mm, and a thickness of 1.2 mm was used. The explosive 13 used was a string-like one having a diameter of about 6 mm and about 10 g per meter. The speed of the shock wave generated at that time was 6000 m / sec, and a hook-shaped shock wave was formed.

  4A and 4B are diagrams for explaining a state where the storage medium is peeled off from the storage medium layer and the resin member by the shock wave. In FIG. 4A, the explosive 13 becomes a shock wave A and hits the laminated cross section of the storage medium 12. As shown in FIG. 4B, since the storage medium layer 123 and the resin members 122 and 124 have different densities and the like, the shock wave is the earliest in the storage medium layer 123 and slow in the resin members 122 and 124. That is, when the storage medium layer 123 receives a pressure greater than that of the resin members 122 and 124, peeling occurs between the storage medium layer and the resin member.

  FIG. 5 is a view for explaining an example in which storage media stacked in a storage box are placed at a plurality of locations and a plurality of explosives are arranged. In FIG. 5, for example, stacked storage media 51 to 56 are stacked in six locations in the storage box 14. Explosives 513 to 516 are arranged between the storage media 51 to 56. The explosives 513 to 516 protrude above and below the laminated thickness of the storage media 51 to 56, and the storage media layer and the resin member are peeled off by a shock wave generated by the explosion. Arrangement of the stacked storage media 51 to 56 and explosives 513 to 516 can be placed inside and / or outside the storage media depending on the amount and type of the storage media, and the number thereof can be arbitrarily selected.

  In the storage box 14, the explosive 13 and the electric detonator were placed in a water tank having an internal size of 500 mm × 500 mm and a height of 500 mm in the same manner as described above, and water was poured so that the water depth would be 400 mm. The detonator 133 detonated the electric detonator by remote control, and peeled off the storage medium layer and the resin member of the storage medium with the explosive power of the explosive 13. The peeled storage medium layer and the resin member were lifted out of the water tank together with the storage box 14 and recovered in a state of being peeled inside the storage box 14. In the peeled state, the collected storage medium layer and the resin member are separated and recovered by the acid by the acid, and the acid is also removed from the remaining resin member portion.

  The metal and resin member of the storage medium layer are reused as a raw material for the metal or resin member. In addition, the acid used for recovering the metal can be any of inorganic acids such as hydrochloric acid, sulfuric acid, and nitric acid, or mixed acids, depending on the type of metal to be recovered. Since the residue after the metal is recovered is a resin member, it can be used as a raw material for recycled plastics after removing the acid and washing with water. Or the said resin member can be used also as a synthetic raw material of a solid fuel or another substance.

  Although the second embodiment is not shown in the figure, the storage box storing the DVD-Rs in a stacked form is the first in that it has a structure like a basket with a metal wire net attached to a metal frame. It is different from the embodiment. The pitch of the wire mesh in the storage box needs to be sufficiently small so that the storage medium cannot be taken out from the gap of the wire mesh. The wire constituting the wire mesh is of such a thickness that it cannot be easily cut. As materials other than wire mesh, steel plates with many holes can be used. An explosive is placed around the storage box. The explosive can be a high-performance explosive such as TNT or RDX (Research Depertment X), an industrial explosive such as dynamite or a hydrous explosive, or a suitable explosive for explosives with a nitrile oil explosive. For example, the explosive is equipped with a No. 6 instantaneous electric detonator and remotely detonated by an detonator. The explosive power of the explosive acts on the storage medium through the wire mesh surface of the storage box. The greater the amount of the explosive, the greater the explosion power and the greater the degree of peeling. The storage box is submerged in a water tank. The water depth at that time should be more than the extent that the explosive part including the storage box and the electric detonator part is hidden.

  Although not shown, the third embodiment has a structure in which a storage box storing DVD-Rs in a stacked form has a theft prevention function in which a strong metal plate is attached to a strong metal frame. This is different from the first and second embodiments. The structure of the storage box shall have sufficient strength to withstand explosions inside. If necessary, the storage box is structured so that it can be locked and sealed. As a material other than metal, a strong resin can also be used. An explosive is placed inside the storage box through a small hole on the top. As explosives, high-performance explosives such as TNT and RDX, industrial explosives such as dynamite and hydrous explosives, and suitable explosive explosives can be used together with a nitrate oil explosive. The explosive is equipped with a No. 6 instantaneous electric detonator and remotely detonated with a detonator. The explosive power of the explosive acts on the storage medium inside the storage box. In the third embodiment, it is not always necessary to fill the interior with water. The entire storage box may be submerged in a water tank. Since the explosion power is received in the storage box, the structure of the aquarium can be simplified.

  FIG. 6 is a flowchart for recovering the resin member of the storage medium and the metal of the storage medium layer in the embodiment of the present invention. In FIG. 6, the storage media are stacked in a stacked state and set in a processing box (step 61). An explosive is set in the central hole or side of the stacked storage medium (step 62). Water is inserted into the processing box (step 63). The set explosive is blasted by a detonator (step 64). The storage medium is drained after the storage medium layer and the resin member are separated from each other due to the explosion of the explosive (step 65).

  In the peeled storage medium layer and the resin member, a processing liquid for metal extraction is inserted into the processing box (step 66). The treatment liquid elutes the metal adhering to the storage medium layer and the resin member, and collects the substantially disk-shaped resin member (step 67). The treatment liquid from which the metal or the like has been eluted is recovered (step 68), and the metal member is recovered therefrom (step 69). The water can be inside or outside the processing box. The water can be omitted and treated in air.

  The embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the matters described in the claims. Is possible. The storage medium described in the present embodiment may be included even if the storage medium layer and the protective resin member are configured in a sandwich shape, other than those listed in the embodiment. Needless to say. The shape of the storage box (processing box, collection box) is not particularly limited as long as the storage medium and the explosive can be set. As the explosive and the detonator, a known or well-known one can be arbitrarily selected.

  In this embodiment, the example in which the shock wave travels in the stacking direction of the storage medium has been described. However, the shock wave may be inclined with respect to the storage medium. In the above case, the storage medium layer and the resin member have shock waves inclined, but the propagation speeds of propagation through the storage medium layer and the resin member are different from each other.

It is a perspective view which has a partial cross section for demonstrating the set state at the time of blasting a storage medium. Example 1 (A) is a figure explaining a storage medium, (b) is a figure for demonstrating the state which peeled the storage medium into the storage medium layer and the resin member. (A) is an embodiment of the present invention and explains the state in which an explosive is set in the central hole of the stacked storage medium, and (B) is a diagram for explaining the state of a shock wave due to the explosion of the explosive. (C) is also a plan view. (A) and (B) are diagrams for explaining a state in which the storage medium is peeled off from the storage medium layer and the resin member by a shock wave. It is a figure for demonstrating the example which put the storage medium laminated | stacked in the storage box in multiple places, and has arrange | positioned several explosives. 5 is a flowchart for recovering a resin member of a storage medium and a metal of a storage medium layer in the embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Storage medium peeling apparatus 12 ... Storage medium 121 ... Center hole 122 ... Resin member 123 ... Storage medium layer 124 ... Resin member 13 ... Explosive 131 ... Detonator 132 ... Fire guide wire 133 ... Detonation device 134 ... Explosive fixing means 14 ... Storage box (processing box-collection box)
141 ... Storage medium placing means 142 ... Water 15 ... Tank 151 ... Storage box fixing means

Claims (8)

The storage medium layer is blown up by sandwiching the storage medium layer with a resin member, and the storage medium layer and the resin member are peeled to remove data in the storage medium, and at the same time, the storage medium layer In a storage medium processing method capable of recycling the metal and the resin member,
In the processing box in which the storage medium is stacked and stored, the storage medium is stacked and stored so that the shock wave of the explosive travels in the surface direction of the storage medium. A process of setting the explosive in the stacking direction of the storage medium,
A process of causing the explosive to blow up and generating a shock wave generated at that time so as to travel in the surface direction of the storage medium;
A process of injecting a processing liquid for extracting a collected substance in the processing box into the processing box;
A process of recovering a resin member from the processing box and recovering a metal from the processing liquid;
A storage medium processing method comprising: The storage medium layer is blown up by sandwiching the storage medium layer with a resin member, and the storage medium layer and the resin member are peeled to remove data in the storage medium, and at the same time, the storage medium layer In the storage medium processing apparatus capable of recycling the metal and the resin member,
Processing boxes in which the storage media are stacked and stored; and
In the processing box, an explosive which is set in the stacking direction of the storage medium and arranged so that a shock wave generated when the storage medium is blown up proceeds in the surface direction of the storage medium;
Detonation means to explode the explosive,
A storage medium processing apparatus comprising at least   The explosive has protrusions that protrude in the stacking direction of the storage medium at the upper and lower portions of the storage medium stacked in a stack in the processing box. Storage medium processing apparatus.   4. The storage medium processing device according to claim 3, wherein the size of the upper and lower protrusions of the explosive is 5 mm or more.   5. The storage medium processing device according to claim 2, wherein the processing box is double-covered and protected by another box. 6.   The processing box is for theft prevention, storage, and management for maintaining the security of the storage medium, and is a wire mesh or perforated steel plate that can blow up the storage medium in the storage state. The storage medium processing apparatus according to claim 2. The storage medium layer is blown up by sandwiching the storage medium layer with a resin member, and the storage medium layer and the resin member are peeled to remove data in the storage medium, and at the same time, the storage medium layer In the storage medium processing apparatus capable of recycling the metal and the resin member,
The storage medium is stacked and stored, and the storage medium is surrounded by a wire mesh with a thickness that cannot be easily cut, and the storage medium once stored cannot be removed;
A processing box covering the storage basket;
In the processing box, an explosive which is set in the stacking direction of the storage medium and arranged so that a shock wave generated when the storage medium is blown up proceeds in the surface direction of the storage medium;
Detonation means to explode the explosive,
A storage medium processing device comprising: The storage basket in which the storage medium once accommodated cannot be removed has a strong metal frame or a strong synthetic resin frame so that it has sufficient strength to withstand the explosion inside. and a storage medium processing apparatus according to claim 7, wherein the Do synthetic resin plate as a structure having also serves as a pasted antitheft function.

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