KR102278815B1 - Apparatus for recovering aluminum in the packing material and the method using it - Google Patents

Abstract

The present invention relates to a recovery device for aluminum material that can not only simplify the process when recovering aluminum forming a thin layer from a packaging material, but also prevent safety accidents, and more particularly, a packaging material consisting of an aluminum layer and an emulsified film layer. A transport unit for transporting and thermal decomposition of the packaging material transported through the transport unit to generate carbides in which hydrogen has been removed from the emulsified film layer in gaseous form, and carbides by thermal decomposition in a state in which oxygen gas is supplied to the carbides A thermal decomposition unit for obtaining the aluminum layer by removing it in the form of carbon dioxide gas, and a combustion reaction tank provided to obtain a gloss on the surface of the aluminum layer by additionally reacting the aluminum layer obtained in the thermal decomposition unit with oxygen characterized.

Description

Apparatus for recovering aluminum in the packing material and the method using it

The present invention relates to an aluminum material recovery apparatus and method, which can not only simplify the process, but also prevent safety accidents when recovering aluminum forming a thin layer from a packaging material.

In modern society, the types of waste are diversified due to the development of material civilization and the advancement of industrial society, and the amount of waste is explosively increasing, becoming a serious social problem. Therefore, recycling of waste is emerging as a major concern, and in particular, the importance of recycling of high value-added materials such as aluminum is increasing.

In particular, the packaging material (W), which is commonly seen around us, also includes such an aluminum layer (F2) together with at least one emulsion film layer (F1), as shown in FIG. 1, but the aluminum contained in the packaging material It is not easy to recycle because it consists of a thin layer of less than 100㎛.

Since aluminum forming such a thin layer is generally melted together with plastic in a melting furnace, toxic gas is generated, and in some cases, there is also a risk of explosion, so expensive purification facilities are inevitably provided or a problem that causes a safety accident. have.

In order to solve this problem, the prior art Korean Patent Application Laid-Open No. 2004-24473 has been disclosed, and specifically, leaching osmosis is performed on the aluminum vinyl (paper) composite packaging material using an acidic solution containing nitric acid, and in addition Disclosed is a method of separating a vinyl material layer or a paper material layer in an aluminum vinyl (paper) composite packaging material from an aluminum material layer by separating and dissolving the aluminum oxide layer at a bonding site of the aluminum vinyl composite packaging material.

However, this prior art has the advantage of being able to separate thin aluminum constituting the packaging material, but it takes a considerable amount of time because the packaging material must be immersed in a solution, and the solution itself used to separate the aluminum is made of an acidic material. Therefore, there is still a problem that the defense against toxic gas release or safety accidents is weak.

Korean Patent Publication No. 2004-24473 (published on March 20, 2004)

An object of the present invention is to provide an apparatus and method capable of separating an aluminum material that can simplify a process for separating aluminum from a packaging material and ensure worker safety at the same time, in order to solve the above-mentioned conventional problems. have.

In order to solve the above technical problem, the aluminum material recovery device included in the packaging material according to the present invention includes a conveying unit for conveying a packaging material consisting of an aluminum layer and an emulsified film layer, and an oxygen-deficient method for the packaging material conveyed through the conveying unit. The aluminum layer is recovered by thermally decomposing the emulsified film layer in the state of being carbide and removing it in a gaseous state by reacting the carbide obtained in the thermal decomposition unit and the thermal decomposition unit with oxygen to obtain the aluminum layer and the carbide. It is characterized in that it comprises a combustion reaction tank.

In addition, the thermal decomposition unit and the combustion reaction tank have a mesh structure in which a plurality of through holes are perforated on the outer surface, and the packaging material is supplied in the direction from the tip to the other end. It further comprises a moving part for obtaining the aluminum layer from which the layer has been removed, wherein the moving part has a cylindrical shape and a plurality of the through holes are formed on its outer surface so that the thermal decomposition part and the combustion reactor react with the packaging material, A moving net for obtaining the aluminum layer from which the emulsified film layer has been removed, a cylindrical body that is pipe-connected to the thermal decomposition unit and the combustion reactor, respectively, so that airtightness inside the moving net can be maintained, installed at both ends of the body a flange formed so that a plurality of the mobile networks can be connected to each other, a spiral plate formed in a longitudinal direction inside the mobile network so that the packaging material can move to obtain the aluminum layer in the mobile network, both ends of the flange Or an auxiliary bracket connected to the body so that the spiral plate can be fixedly installed inside the mobile network, and rotated by a control signal from the control unit so that the body and the body can be teeth-coupled to each other to rotate the body It is preferable to include a member.

In addition, the thermal decomposition unit is connected to the first thermal decomposition tank and the first thermal decomposition tank in which hydrogen is removed as a gas to generate carbides by thermal decomposition of the emulsified film layer in an anoxic state or in an oxygen-deficient state (eg, a nitrogen atmosphere) It is preferable to include a second thermal decomposition tank for obtaining the aluminum layer by removing the carbon dioxide gas by combining the carbide with oxygen gas.

According to the present invention, the emulsified film layer included in the packaging material moving from one end of the rotating moving network to the other end in a different direction from the conventional one moves sequentially through the first and second pyrolysis tanks, which are the components of the thermal decomposition unit, into carbides by thermal decomposition. After being changed, the aluminum layer is obtained by being combined with oxygen and removed with carbon dioxide gas, and the obtained aluminum layer is additionally reacted with oxygen in the combustion reactor by the rotation of the moving part so that the surface can be polished so that it can be packaged as needed After that, it can be moved or stored, so that it has the effect of providing high-purity aluminum as a recycled product.

1 is a view showing a conventional packaging material.
Figure 2 is a conceptual view showing a recovery device of the aluminum material included in the packaging material according to the present invention.
3 is a conceptual view showing a thermal decomposition unit of the aluminum material recovery device included in the packaging material according to the present invention.
4 to 6 are views showing the moving part of the recovery device of the aluminum material included in the packaging material according to the present invention.
7 is a flowchart illustrating a method for recovering an aluminum material included in a packaging material according to the present invention.

Hereinafter, in addition to the above object, other objects and features of the present invention will become apparent through the description of the embodiments with reference to the accompanying drawings, and unless otherwise defined, all terms used herein, including technical or scientific terms, are It has the same meaning as commonly understood by those of ordinary skill in the art to which the invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with the meanings in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, an aluminum material recovery device (hereinafter, simply referred to as a 'recovery device') included in the packaging material according to the present invention will be described in detail with reference to the accompanying drawings. Prior to the description, it should be noted that the packaging material (W) in the present invention usually means the packaging material (W) composed of an emulsion film layer (F1) and an aluminum layer (F2) (see FIG. 1).

First, as shown in FIG. 2 , the recovery device 1 according to the present invention is largely composed of a transfer unit 100 , a thermal decomposition unit 200 , and a combustion reaction tank 300 . As the packaging material (W) is sequentially moved by the moving unit 500, the main component of the emulsified film layer (F1) constituting the packaging material (W) is a hydrocarbon material consisting of hydrogen and carbon, which is hydrogen gas and carbon by thermal decomposition. A recovery device capable of obtaining high-purity aluminum by lubricating the surface of the obtained aluminum layer (F2) at the same time as obtaining the aluminum layer (F2) by separating into solids and removing the carbon solids with oxygen and carbon dioxide gas (1) will be provided.

3, the transfer unit 100 supplies the packaging material W to the moving unit 500 to be described later so that the aluminum layer F2 can be obtained from the packaging material W. is the composition

The transfer unit 100 allows the packaging material W to be supplied through a hopper (not shown) formed in the moving unit 500 or the thermal decomposition unit 200 according to the size of the recovery device 1 of the present invention, and if necessary Accordingly, a large amount of packaging material W is put into the hopper by using a crane that can move in high altitude, so that the aluminum layer F2 can be obtained from a large amount of packaging material W in a short time.

At this time, it is preferable to use only the packaging material (W) that has been subjected to the washing process, which is a pre-treatment step, so that foreign substances or impurities can be minimally introduced into the components constituting the post-process for the packaging material (W) transferred through the transfer unit (100). .

And the thermal decomposition unit 200 thermally decomposes the packaging material (W) supplied by the transfer unit 100, but only the emulsified film layer (F1) is removed by the thermal decomposition to leave the aluminum layer (F2) in the packaging material (W). For example, it includes a first pyrolysis tank 210 and a second pyrolysis tank 220 communicating with the first pyrolysis tank 210 .

The first pyrolysis tank 210 thermally decomposes the packaging material (W) introduced into the first thermal decomposition tank 210 in an anoxic or oxygen-deficient state such as a nitrogen atmosphere, thereby forming an emulsified film layer (W) included in the packaging material (W). Allows conversion of hydrogen from F1) to carbide (F1-a) removed in gaseous form.

Here, it is preferable that the temperature of thermal decomposition applied to the emulsified film layer (F1) does not exceed a maximum of 650°C so that the thermal decomposition is performed through the control of the controller (not shown), because the reason is that the aluminum layer (F2) to be obtained is ) is the temperature set so that only the emulsified film layer (F1) can be completely removed and aluminum can be safely obtained on the basis that the melting point of aluminum forming is usually 660°C.

In addition, the first pyrolysis tank 210 is provided with a heat source for carbonizing the emulsified film layer F1 by a heat source providing unit 211 that provides a heat source necessary for thermal decomposition of the packaging material W, and not shown. A set temperature for carbonizing the emulsified film layer F1 through a temperature sensor (not shown) can be controlled by the controller.

On the other hand, the heat source providing unit 211 provides a heat source to the second pyrolysis tank 220 so that it can be used to remove the carbide F1-a, and the first and second pyrolysis tanks 220 through the control of the controller. It is also possible to provide heat sources of different temperatures to the

The second pyrolysis tank 220 is installed in communication with the first pyrolysis tank 210 described above, and is an aluminum layer together with the carbide (F1-a) generated from the emulsified film layer (F1) by the moving part 500 to be described later. (F2) is supplied and the carbide (F1-a) is combined with oxygen gas to be removed from the aluminum layer (F2) in the form of carbon dioxide gas.

To this end, the second thermal decomposition tank 220 applies heat to the carbide F1-a in an oxygen state so that the carbide F1-a can be removed from the aluminum layer F2.

In addition, the aluminum layer (F2) from which the carbide (F1-a) has been removed can be supplied to the combustion reactor 300, which is a post-process, through the moving unit 500, and the carbide (F1) removed from the aluminum layer (F2). -a) is discharged through the outlet 221 formed in the second pyrolysis tank 220. At this time, the carbide F1-a removed from the aluminum layer F2 by thermal decomposition corresponds to the form of carbon dioxide gas. It can be smoothly discharged to the outside of the second pyrolysis tank 220 through the discharge port (221).

In addition, the discharge port 221 from which the carbide (F1-a) is discharged is connected to the purification member 223 made of a suction pump or filter, etc., so that the carbide (F1-a) is purified and discharged to the sewer, etc. to maximize the degree of environmental pollution. make it possible to lower

On the other hand, in the thermal decomposition unit 200, an exhaust means 230 capable of purifying and discharging the polluting gas generated when the packaging material W is thermally decomposed is connected to the thermal decomposition unit 200 and receives a control signal from the control unit. through which it can be discharged to the outside.

And the combustion reaction tank 300 is configured so that the aluminum layer (F2) obtained through the above-described thermal decomposition unit 200 is additionally reacted with oxygen to realize gloss on the surface of the aluminum layer (F2).

To this end, the combustion reaction tank 300 transports oxygen through the oxygen supply unit 310 connected to a plurality of nozzles communicating with the inside of the moving unit 500 through which the obtained aluminum layer F2 moves. The moving aluminum layer (F2) reacts with oxygen for a certain period of time to give a glossy effect to the surface.

On the other hand, the recovery device 1 in the present invention may further include a packaging unit 400 capable of recovering the aluminum layer F2 that has been processed by the combustion reactor 300, packaging it and supplying it to a recycling organization, , the packaging unit 400 also accommodates a certain amount of the aluminum layer F2 through the control signal of the control unit, so that it can be moved or stored after sealing.

And the moving unit 500 is emulsified while moving through the combustion reaction tank 300 in sequence, the packaging material (W) supplied to the thermal decomposition unit 200 by the transfer unit 100 as shown in FIGS. 4 to 6 . As a configuration for obtaining the aluminum layer F2 from which the film layer F1 has been removed, for example, a moving network 510, a body 520, a flange 523, a spiral plate 530, an auxiliary bracket 540 and It includes a rotating member (550).

The moving network 510 is made of a cylindrical shape as a whole to correspond to the inner shape of the body 520 having a tubular shape, and its outer surface is made of a mesh shape in which a plurality of through holes 511 are formed in the longitudinal direction to communicate with the inside, so that the thermal decomposition part In the configuration of 200, a heat source or nitrogen for thermal decomposition of the packaging material W can be easily moved and circulated into the moving network 510, and at the same time, the carbide (F1-) removed from the aluminum layer (F2). a) to be easily supplied to the purification member 223 .

The mobile network 510 can be fixedly installed on the body 520 by fastening means such as bolts or screws through the auxiliary bracket 540, and is proportional to the size (including length) of the recovery device 1 of the present invention. It has a structure in which the length can be extended through the flange 523 formed in the 520 .

The body 520 surrounds the outer surface of the mobile network 510 and is formed in a tubular shape as a whole so that the shape change of the mobile network 510 does not occur due to external influences, and preferably a plurality of connecting tubes (not shown) are formed on the outer surface. to have a structure that can be pipe-connected to the above-described transfer unit 100 , thermal decomposition unit 200 , and combustion reactor 300 , respectively.

At both ends of the body 520 , flanges 523 having a ring shape as a whole are protruded so that a plurality of bodies 520 can be connected to each other by fastening means.

A screw thread 521 for tooth coupling with the rotating member 550 is formed on the outer surface of the body 520 having a cylindrical shape, and through the rotation of the rotating member 550, the body 520 as well as the moving network 510 are formed. And the spiral plate 530 has a structure that can rotate together in the same direction.

At this time, the body 520 is fixedly installed so as to have a predetermined distance from the outer surface of the mobile network 510 provided therein to discharge the carbide F1-a or circulate or supply nitrogen injected into the mobile network 510 or the like. It is desirable to make this easy.

The spiral plate 530 is provided to form a spiral shape in the longitudinal direction inside or outside the moving network 510, and the packaging material (W) introduced into one end of the moving network 510 (the direction in which the conveying part is provided) through the spiral shape. is moved to the other end of the moving network 510 (the direction in which the combustion reaction tank or the packaging unit is provided) so that the first and second pyrolysis tanks 220 can be sequentially moved.

A plurality of auxiliary brackets 540 are provided in the longitudinal direction around the inner circumference of the moving net 510 and are fixedly installed by the body 520 and fastening means so that the moving net 510 and the body 520 can be fixed to each other and at the same time. The spiral plate 530 may be fixedly installed inside the mobile network 510 .

The rotating member 550 rotates the body 520 through the control signal of the control unit and rotates the spiral plate 530 installed inside the body 520 until the aluminum layer F2 is obtained. configuration to move.

For example, the rotating member 550 is rotated by the driving motor 551 and the driving motor 551 rotated by the applied power, the outer surface of which is a screw thread 521 formed in the body 520 and a gear that is toothed with each other ( 553) may be included.

Hereinafter, a method (2) for recovering the aluminum layer (F2) using the recovery device (1) according to the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description, as shown in FIG. 6, in the recovery method (2) according to the present invention, 1) the packaging material (W) is thermally decomposed to remove hydrogen from the emulsified film layer (F1) in a gaseous form (F1-a). ) to carbonize (S100), combining the carbide (F1-a) with oxygen and removing it in the form of carbon dioxide gas to obtain an aluminum layer (F2) (S200) and the obtained aluminum layer (F2) Gloss on the surface It includes a step (S300) of giving out.

Referring to FIGS. 2 to 6 , a plurality of packaging materials W that have been washed through the transfer unit 100 are introduced into the moving unit 500 communicating with the thermal decomposition unit 200 and the movement is described in more detail with reference to FIGS. 2 to 6 . When the packaging material W is moved by the rotation of the unit 500, the emulsified film layer F1 constituting the packaging material W through the first pyrolysis tank 210 having an anoxic or oxygen-deficient state such as a nitrogen atmosphere. ) to allow hydrogen to be removed in gaseous form to form carbides (F1-a).

At this time, the temperature supplied to the first thermal decomposition tank 210 through the heat source providing unit 211 for carbonization due to thermal decomposition of the emulsified film layer (F1) is a maximum temperature of 650 ℃ pyrolysis of the emulsified film layer (F1) It is desirable to make it happen.

Then, when the emulsified film layer (F1) is carbonized into carbide (F1-a) through thermal decomposition of the first pyrolysis tank 210, the aluminum having the carbide (F1-a) is provided by the rotation of the moving unit 500 The layer F2 moves to the second pyrolysis tank 220 so that the carbide F1-a is combined with oxygen to be removed in the form of carbon dioxide gas, so that the carbide F1-a is removed from the aluminum layer F2 to be able to obtain

The finally obtained aluminum layer F2 is supplied to the combustion reaction tank 300 by the rotation of the moving part 500, and the combustion reaction tank 300 allows the moved aluminum layer F2 to react with oxygen. Oxygen is additionally supplied so that gloss can be realized on the surface.

Through such a configuration, the recovery device 1 according to the present invention has an emulsified film layer F1 included in the packaging material W that moves from one end to the other end of the moving network 510 that rotates differently from the conventional one through the thermal decomposition unit. While sequentially moving the first and second pyrolysis tanks 220, which are the components of 200, the carbide (F1-a) is changed and then removed by thermal decomposition to obtain an aluminum layer (F2), and the obtained aluminum layer ( F2) reacts with oxygen in the combustion reaction tank 300 by the rotation of the moving part 500 so that the surface thereof can have a glossy effect, so that it can be moved or stored after packaging as needed, so that high-purity aluminum is recycled. has the effect of providing

As described above, the present invention has been described with specific matters such as specific components and limited embodiments and drawings, but these are provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , various modifications and variations are possible from these descriptions by those of ordinary skill in the art to which the present invention pertains.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and not only the claims to be described later, but also all of the claims and equivalents or equivalent modifications will be said to belong to the scope of the spirit of the present invention. .

1: Recovery device for aluminum material included in the packaging material according to the present invention
100: transfer unit
200: thermal decomposition unit
210: first pyrolysis tank 211: heat source providing unit
220: second pyrolysis tank 221: discharge port
223: purification member 230: exhaust means
300: combustion reactor
310: oxygen provider
400: packaging unit
500: moving unit
510: mobile network 511: communication
520: body 521: thread
523: flange 530: spiral plate
540: auxiliary bracket 550: rotating member
551: drive motor 553: gear
W: Packaging material F1: Emulsified film layer
F2: aluminum layer

Claims (9)

a transfer unit 100 for transferring the packaging material (W) composed of an emulsified film layer (F1) and an aluminum layer (F2); and
The packaging material (W) transferred through the transfer unit 100 is thermally decomposed to produce a carbide (F1-a) in which hydrogen is removed from the emulsified film layer (F1) in a gaseous form, and the carbide (F1-a) a thermal decomposition unit 200 for obtaining the aluminum layer F2 by removing the carbide (F1-a) in the form of carbon dioxide gas by thermal decomposition in a state in which oxygen gas is supplied; and
and a combustion reaction tank 300 for obtaining gloss on the surface of the aluminum layer F2 by further reacting the aluminum layer F2 obtained in the thermal decomposition unit 200 with oxygen,
The aluminum material contained in the packaging material, characterized in that it includes an oxygen supply unit 310 connected to the combustion reaction tank 300 to introduce oxygen into the aluminum layer F2 obtained in the thermal decomposition unit 200. recovery device.
delete According to claim 1,
The thermal decomposition unit 200 and the combustion reaction tank 300 have a mesh structure in which a plurality of through holes 511 are perforated on the outer surface, and the packaging material W is supplied from the tip to the other end, and the thermal decomposition unit 200 and a moving part 500 for obtaining the aluminum layer (F2) from which the emulsified film layer (F1) is removed by moving the combustion reaction tank (300). recovery device.
4. The method of claim 3,
The moving part 500 is made of a cylindrical shape, and a plurality of the through holes 511 are formed on its outer surface so that the thermal decomposition part 200 and the combustion reaction tank 300 react with the packaging material (W) to react with the emulsification. The moving network 510 for obtaining the aluminum layer F2 from which the film layer F1 is removed, the thermal decomposition unit 200 and the combustion reactor 300 are respectively pipe-connected and the moving network 510 is airtight inside. A body 520 formed in a cylindrical shape so that this can be maintained, a flange 523 formed at both ends of the body 520 so that a plurality of the mobile networks 510 can be connected to each other, and a length inside the mobile network 510 A spiral plate 530 formed in a spiral shape so that the packaging material W can move to obtain the aluminum layer F2 within the moving network 510, both ends of the flange 523 or the body. Auxiliary bracket 540, which is connected to 520, so that the spiral plate 530 can be fixedly installed inside the mobile network 510, and the body 520 and is coupled to each other by a control signal of the control unit. The aluminum material recovery device included in the packaging material, characterized in that it comprises a rotating member (550) for rotating by rotating the body (520).
According to claim 1,
The thermal decomposition unit 200 is
The first thermal decomposition tank 210 for thermally decomposing the emulsified film layer (F1) in a nitrogen state to generate the carbide (F1-a) and removing the carbide (F1-a) in the form of carbon dioxide gas in an oxygen state. A device for recovering aluminum material contained in a packaging material, characterized in that it includes a second pyrolysis tank 220 for obtaining an aluminum layer (F2).
1) The packaging material (W) composed of the emulsified film layer (F1) and the aluminum layer (F2) is supplied by the transfer unit 100, and the packaging material (W) is thermally decomposed in the first pyrolysis tank 210 in a nitrogen state. forming a carbide (F1-a) in which hydrogen is removed in gaseous form from the emulsified film layer (F1);
2) In the second thermal decomposition tank 220, the carbide (F1-a) is removed in the form of carbon dioxide gas by thermal decomposition in a state in which oxygen gas is supplied to the carbide (F1-a) to form the aluminum layer (F2) obtaining; and
3) reacting the obtained aluminum layer (F2) with oxygen in the combustion reaction tank (300) to obtain a gloss on the surface of the aluminum layer (F2);
Recovery of the aluminum material contained in the packaging material, characterized in that oxygen is supplied from the oxygen supply unit 310 connected to the combustion reaction tank 300 to introduce oxygen into the aluminum layer F2 obtained in step 3) Way.
delete 7. The method of claim 6,
The packaging material (W) supplied through the transfer unit 100 is rotated by a control signal from a control unit, but communicates with the first pyrolysis tank 210, the second pyrolysis tank 220, and the combustion reaction tank 300 A method of recovering an aluminum material contained in a packaging material, characterized in that it moves from one end of the moving unit 500 to the other end to recover the aluminum layer (F2) from which the emulsified film layer (F1) is removed.
7. The method of claim 6,
The method for recovering an aluminum material using an aluminum material recovery device, characterized in that the thermal decomposition temperature of the carbide (F1-a) in step 1) does not exceed 650°C.

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