KR20220101521A - Impeller for waste packing material disassembly device - Google Patents

Abstract

A disclosed impeller for a waste packing material disassembly device transfers a waste packaging material and molten resin distributed on the bottom of a hollow part to the inner side of the hollow part, and allows the waste packaging material and molten resin to the entire heating section formed by an outer chamber along the blades of a rotating ribbon screw conveyor. The impeller includes: a core mounted on the lower end of the support shaft of the ribbon screw conveyor extended toward the bottom of the hollow part; and a plurality of impellers extended radially outward from the core on the outer surface of the core.

Description

IMPELLER FOR WASTE PACKING MATERIAL DISASSEMBLY DEVICE

The present invention (Disclosure) relates to an impeller for a waste packaging material decomposing device, and more particularly, the waste packaging material and molten resin distributed on the bottom of the pyrolysis chamber are transferred to the heating section, and the waste packaging material distributed on the floor of the pyrolysis chamber and It relates to an impeller for a waste packaging material decomposing device that enables molten resin to be transferred to a heating section along a ribbon screw conveyor.

Herein, background information related to the present invention is provided, which does not necessarily imply prior art. (This section provides background information related to the present disclosure which is not necessarily prior art).

Due to the depletion of energy and resources, various studies on resource recovery methods and production of facilities for the same are being actively performed. In particular, various studies are being conducted to recover used resources from packaging materials used in various ways in daily life, and a study on aluminum recovery is one of them.

In the case of aluminum, it is widely used in packaging materials in that it can maintain a safe and hygienic state for a long period of time due to its excellent preserving power. In the case of aluminum used for packaging, it is mostly used as a thin film type foil as a single material or together with paper and/or synthetic resins (polyester, polystyrene, polypropylene).

Aluminum used in such a packaging material is particularly suitable for food preservation in that it prevents oxygen permeation in the air and has an excellent UV protection effect.

On the other hand, a pyrolysis emulsification method and apparatus for extracting aluminum and useful oil by thermally decomposing the waste packaging material as a method of recycling the above-described waste packaging material without incineration or landfill is widely used.

As anyone can see in the above-mentioned emulsification process, the pyrolysis process to obtain gaseous oil components by heating and decomposing the waste packaging material at 300°C to 600°C, and fractional distillation to liquefy and separate gaseous oil components process can be divided into

To explain this in more detail, first, the collected waste packaging material is cut or crushed to an appropriate size, and then the waste packaging material is charged into the inlet of the decomposition furnace. At this time, the waste packaging material is usually preheated to 200°C to 250°C and charged into the decomposition furnace in an almost molten state or in a cut and pulverized state.

The waste packaging material loaded into the decomposition furnace is heated to 300°C~600°C by a heating means while moving along the decomposition furnace by a screw conveyor, whereby the synthetic resin of the waste packaging material is decomposed into oil (oil) components and vaporized, and aluminum It is released as undecomposed ash.

And the oil component decomposed and generated in the decomposition furnace is introduced into the condenser through the gas outlet in a gaseous state, liquefied, separated, and then transferred to a storage facility through a post-treatment process and stored.

However, the screw conveyor provided in the decomposition furnace of the conventional waste synthetic resin emulsifier has a problem in that it cannot transfer the waste packaging material and the molten resin distributed on the bottom side of the decomposition furnace to the heating section side.

Korean Utility Model Publication No. 20-0360958. Korean Patent Publication No. 10-1914366. Korean Patent Application Laid-Open No. 10-2012-0005234. Korean Patent Publication No. 10-1035392.

In the present invention (Disclosure), the waste packaging material and molten resin distributed at the bottom of the pyrolysis chamber are transferred to the heating section, and at the same time, the waste packaging material and the molten resin distributed at the bottom of the pyrolysis chamber are transferred to the heating section along the ribbon screw conveyor. It has one purpose to provide an impeller for a waste packaging material dismantling device that enables

Herein, a general summary of the present invention is provided, which should not be construed as limiting the scope of the present invention (This section provides a general summary of the disclosure and is not a comprehensive disclosure of its full scope or all of its features).

In order to solve the above problems, according to any one aspect of the various aspects describing the present invention, a vertical cylindrical inner chamber having a hollow portion therein, and an outer chamber surrounding the outer surface of the inner chamber, a pyrolysis chamber having a cover plate and a bottom plate closing the open top and bottom of the inner chamber and the outer chamber; a ribbon screw conveyor extending vertically along the longitudinal direction of the hollow part while being disposed inside the hollow part; and heating means for providing high-temperature heat so that the molten resin is thermally decomposed while melting the waste packaging material charged into the hollow part. While transporting the waste packaging material and the molten resin distributed at the bottom of the hollow part to the inner side of the hollow part, the waste packaging material and the molten resin can be transported throughout the heating section formed by the outer chamber along the rotating blade of the ribbon screw conveyor.

In the impeller for the decomposing device for waste packaging material according to an aspect of the present invention, the impeller includes a core mounted on the lower end of the support shaft of the ribbon screw conveyor extending toward the bottom of the hollow part; and a plurality of impellers extending radially outward of the core on the outer surface of the core, wherein the impellers are provided in a plate shape convexly curved toward the rotational direction in a plan view, and at the same time, the inner surface of the hollow part from the core The height is gradually lowered to the side, and the lower end of the blade may be connected to any one of the impellers.

According to the present invention, since the waste packaging material and the molten resin distributed at the bottom of the hollow part can be transferred to the inner side of the hollow part, it is possible to provide an effect of uniformly heating and stirring the waste packaging material and the molten resin.

According to the present invention, the impellers are provided in a plate shape convexly curved toward the rotational direction in a plan view, and the impellers extend from the core to the inner side of the hollow part so that the height is gradually lowered. It is possible to provide an effect of easily pushing the waste packaging material and the molten resin distributed on the floor toward the inner side of the hollow part.

According to the present invention, since the lower end of the blade of the ribbon screw conveyor is connected to any one impeller, the waste packaging material and molten resin distributed on the bottom of the hollow part are transferred and stirred throughout the heating section along the blade of the ribbon screw conveyor. be able to provide

1 is a cross-sectional view schematically showing a decomposing apparatus for waste packaging material equipped with an impeller according to the present invention.
Figure 2 is a cross-sectional view showing the pyrolysis chamber shown in Figure 1 cut in the transverse direction.
FIG. 3 is a plan view of the impeller shown in FIG. 1 ;
FIG. 4 is a view schematically showing a state in which heating means are installed, in which a part of the heating section shown in FIG. 1 is unfolded; FIG.

Hereinafter, an embodiment in which the impeller for a waste packaging material decomposing apparatus according to the present invention is implemented will be described in detail with reference to the drawings.

However, the intrinsic technical idea of the present invention cannot be said to be limited by the embodiments described below, and the It is disclosed that the range that can be easily suggested as a method of substitution or change of the embodiment described in is included.

In addition, since the terms used below are selected for convenience of explanation, in grasping the intrinsic technical idea of the present invention, they are not limited to the dictionary meaning and are appropriately interpreted as meanings consistent with the technical spirit of the present invention. it should be

1 and 2 are views showing an apparatus for disassembling waste packaging material to which an impeller according to the present invention is mounted.

1 and 2, the waste packaging material decomposition apparatus 100 to which the impeller 140 according to the present invention is mounted includes a pyrolysis chamber 110, a ribbon screw conveyor 132 and a heating means 150, The impeller 140 according to the present invention is mounted on the ribbon screw conveyor 132 .

First, the pyrolysis chamber 110 enables the charged waste packaging material to be pyrolyzed under anoxic or hypoxic conditions, so that the synthetic resin contained in the waste packaging material is generated as a gaseous oil component, and aluminum can be extracted at the same time .

Here, the waste packaging material is a semi-molten waste packaging material in which the waste packaging material is usually preheated to 200°C to 250°C, or a cut and crushed waste packaging material, or a semi-molten waste packaging material as described in 'Technology behind the invention' and cut and pulverized waste packaging materials.

The pyrolysis chamber 110 has a vertical cylindrical inner chamber 111 with a hollow portion 112 provided therein as shown in FIG. 1 and open top and bottom, and an outer surrounding the outer surface of the inner chamber 111 It includes a chamber 113 , and the open upper and lower ends of the inner chamber 111 and the outer chamber 113 are closed by a cover plate 114 and a bottom plate 116 .

And the pyrolysis chamber 110 further includes a waste packaging material input pipe 118 , a gas discharge pipe 120 , and a residue discharge pipe 122 as shown.

The waste packaging material input pipe 118 is for loading the waste packaging material toward the hollow part 112 of the inner chamber 111 , and the waste packaging material input pipe 118 is connected to one side of the cover plate 114 .

At this time, a charging rotary valve (not shown) that allows the waste packaging material to be charged toward the hollow part 112 by a preset amount in the waste packaging material input pipe 118 and a charging butterfly that controls the waste packaging material input pipe 118 A valve (not shown) is mounted.

That is, since the charging rotary valve mounted on the waste packaging material input pipe 118 continuously charges the waste packaging material to the hollow part 112 by a predetermined amount by a predetermined amount, the internal temperature of the hollow part 112 is constant during thermal decomposition of the waste packaging material. It is possible to maintain a high quality, thereby suppressing the generation of pyrolytic carbide, so that it is possible to extract a high-quality regenerated oil (oil).

The gas discharge pipe 120 sucks the oil component in the gas form generated in the hollow part 112 of the inner chamber 111 during thermal decomposition of the waste packaging material and guides it to the condenser (not shown) side, and the gas discharge pipe 120 ) is connected to the other side of the cover plate 114 so as not to interfere with the waste packaging material input pipe 118 .

At this time, the gas discharge pipe 120 is a waste packaging material input pipe 118 through a return gas line (not shown) to re-inject the oil component in the form of a gas inhaled into the hollow part 112 side of the inner chamber 111 again. ) is associated with

And the residue discharge pipe 122 is to discharge aluminum generated in the hollow part 112 of the inner chamber 111 during thermal decomposition of the waste packaging material to the outside of the pyrolysis chamber 110, and the residue discharge pipe 122 is the bottom plate 116 ) is equipped with one or more of

At this time, a discharge butterfly valve (not shown) for intermittent control of the residue discharge pipe 122 is mounted on the starting end side of the residue discharge pipe 122, and aluminum can be discharged by a preset amount to the extended end side of the residue discharge pipe 122. A discharge rotary valve (not shown) that allows

On the other hand, the outer chamber 113 of the pyrolysis chamber 110 formed as described above includes a heating section 124 formed at a predetermined height from the bottom plate 116 to the cover plate 114 side, and a heating section as shown. It is divided into a warming section 126 formed between the upper side of the 124 and the cover plate 114 .

At this time, the heating means 150 are mounted in the heating section 124 , and a conventional insulating material 127 is filled between the outer chamber 113 and the inner chamber 111 forming the keeping section 126 .

Preferably, the inner chamber 111 and the outer chamber 113 of the pyrolysis chamber 110 are made of copper (Cu) or a copper alloy having high thermal conductivity to increase thermal efficiency, thereby heating means 150 to be described later. ) to significantly reduce the number of

In the ribbon screw conveyor 132, the waste packaging material and the molten waste packaging material (hereinafter referred to as "melted resin") charged into the hollow part 112 of the inner chamber 111 constituting the pyrolysis chamber 110 are hollow. Transfer and stir so as not to stick to (112).

As can be seen by anyone, the ribbon screw conveyor 132 includes a support shaft 134 and a blade 136 that wraps around the support shaft 134 in the longitudinal direction of the support shaft 134 in a spiral shape. do.

At this time, the ribbon screw conveyor 132 is extended along the longitudinal direction of the hollow part 112 while being disposed inside the hollow part 112 of the pyrolysis chamber 110, and the ribbon screw conveyor 132 is a waste packaging material and molten resin is rotated independently with respect to the pyrolysis chamber 110 so as to be stirred while transferring from the lower (bottom) to the upper side of the hollow part 112 .

To this end, the upper end of the support shaft 134 of the ribbon screw conveyor 132 is rotatably supported by the cover plate 114 so as not to interfere with the waste packaging material input pipe 118 and the gas discharge pipe 120, and the support shaft ( The upper end of the 134 is connected to the driving means 138 mounted on the upper surface of the cover plate 114 so as not to interfere with the waste packaging material input pipe 118 and the gas discharge pipe 120 , and the driving force from the driving means 138 . is transmitted and rotates.

Here, the driving means 138 may be made of a combination of a conventional electric motor and a conventional speed reducer, and the connection relationship between the driving means 138 and the support shaft 134 of the ribbon screw conveyor 132 is known in the art. Therefore, detailed description is omitted.

On the other hand, the impeller 140 according to the present invention transports the waste packaging material and the molten resin distributed on the bottom side of the hollow part 112 to the inside of the hollow part 112 , and at the same time is distributed on the bottom side of the hollow part 112 . The waste packaging material and molten resin are stirred while being transported throughout the heating section 124 along the blade 136 of the rotating ribbon screw conveyor 132 .

To this end, the impeller 140 according to the present invention includes a core 142 mounted on the lower end of the support shaft 134 extending toward the bottom of the hollow part 112 and a core 142 on the outer surface of the core 142 . It includes a plurality of impellers 144 extending radially outward of the.

At this time, the impeller 144 is the impeller 140 in plan view so that the impeller 144 can push the waste packaging material and molten resin distributed on the floor to the inner surface of the hollow part 112 , that is, the inner surface of the heating section 124 . It is provided in the shape of a plate curved convexly in the direction of rotation (see FIG. 3).

And the impellers 144 are extended from the core 142 to the inner side of the hollow part 112 so that the height is gradually lowered (see FIG. 1), and any one impeller 144 has a waste packaging material and The lower end of the blade 136 is connected so that the molten resin is transported along the blade 136 of the ribbon screw conveyor 132 .

The heating means 150 inductively heat the heating section 124 formed by the outer chamber 113 of the pyrolysis chamber 110 to melt the waste packaging material charged into the pyrolysis chamber 110, and also to pyrolyze the molten resin. Heat the waste packaging material and molten resin to 300°C to 600°C with high enough heat to make it possible.

The heating means 150 includes a conventional magnetron 152 and a conventional dielectric heating element 164 .

As anyone can see, the magnetron 152 outputs a microwave, which is a type of electromagnetic wave, and the dielectric heating element 164 generates heat by the microwave output from the magnetron 152 .

In this way, the heating means 150 made of the magnetron 152 and the dielectric inventor 164 are heated section 124 to provide heat to the hollow part 112 side of the inner chamber 111 constituting the pyrolysis chamber 110 . ) is attached to the outer surface of

Preferably, the heating means 150 are attached to be spaced apart from each other at predetermined intervals along the outer surface of the heating section 111 , and are attached to form a plurality of layers in the heating section 124 at the same time.

More preferably, the heating means 150 for forming one layer and the heating means 150 for forming another adjacent layer form a layer so as not to face each other.

Here, since the magnetron 152 and the dielectric heating element 154 are known technologies, detailed descriptions thereof will be omitted.

On the other hand, the outer surface of the heating section 124 to which the heating means 150 are attached, that is, the outer surface of the outer chamber 113 is a plurality of straight lines in a plan view so that the heating means 150 can be easily attached. form feces

That is, the outer chamber 113 may be formed by bending a flat plate to a predetermined width so as to surround the outside of the inner chamber 111 .

Hereinafter, the operating state of the decomposing device 100 for waste packaging material formed as described above will be briefly described.

In order to thermally decompose the waste packaging material using the decomposing device 100 for waste packaging material according to the present invention, first, the waste packaging material pretreated under the condition that the ribbon screw conveyor 132 and the heating means 150 are operated is transferred to the waste packaging material input pipe 118 . It is charged into the hollow part 112 of the inner chamber 111 through the.

As described above, when the waste packaging material is charged into the hollow part 112 of the inner chamber 111, the waste packaging material is rotated by the driving means 138 into the hollow part by the ribbon screw conveyor 132 and the impeller 140 At the bottom of the 112), the upper side of the hollow part 112, that is, the lower portion of the heating section 124 is stirred while being transferred to the upper side of the heating section (124).

And the waste packaging material conveyed and stirred by the ribbon screw conveyor 132 and the impeller 140 is heated and pyrolyzed by the heat provided by the heating means 150. At this time, the synthetic resin of the waste packaging material is decomposed into an oil component. is vaporized and discharged through the gas discharge pipe 120, the aluminum of the waste packaging material is extracted as undecomposed residue (ash), and the extracted aluminum is the pyrolysis chamber through the residue discharge pipe 122 when the vaporization of the synthetic resin of the waste packaging material is completed (110) is discharged to the outside.

And the oil component discharged through the gas discharge pipe 120 is introduced into a condenser (not shown), liquefied, separated, and then transferred to a storage facility as regenerated oil through a post-treatment process and stored.

The impeller 140 according to the present invention formed in this way can transfer the waste packaging material and the molten resin distributed on the bottom of the hollow part 112 to the inner side of the hollow part 112, so that the waste packaging material and the molten resin are evenly heated. and agitation.

In addition, the impeller 140 according to the present invention is provided in a plate shape in which the impellers 144 are convexly curved to the side in the rotation direction of the impeller 140 when viewed in a plan view, and the impellers 144 are the cores 142 . Since the height is gradually lowered toward the inner side of the hollow part 112 from from, the waste packaging material and the molten resin distributed at the bottom of the hollow part 112 are easily pushed toward the inner side of the hollow part 112. make it possible

In addition, in the impeller 140 according to the present invention, since the lower end of the blade 136 of the ribbon screw conveyor 132 is connected to any one of the impellers 144 , the waste packaging material and the molten resin distributed on the bottom of the hollow part 112 . is transferred and stirred throughout the heating section 124 along the blades 136 of the ribbon screw conveyor 132 .

In the foregoing, specific embodiments of the present invention have been described and illustrated, but it is common knowledge in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have Accordingly, such modifications or variations should not be individually understood from the technical spirit or point of view of the present invention, and modified embodiments should be said to belong to the claims of the present invention.

Claims (2)

A pyrolysis chamber having a vertical cylindrical inner chamber having a hollow portion therein, an outer chamber enclosing an outer surface of the inner chamber, and a cover plate and a bottom plate closing the inner chamber and open upper and lower ends of the outer chamber; a ribbon screw conveyor disposed inside the hollow part and extending vertically along the longitudinal direction of the hollow part; In the impeller mounted on the decomposing apparatus for waste packaging material comprising a; heating means for providing high-temperature heat so that the molten resin is thermally decomposed while the waste packaging material charged into the hollow part is melted,
The impeller interlocks with the ribbon screw conveyor and transfers the waste packaging material and the molten resin distributed at the bottom of the hollow part to the inner side of the hollow part, while the waste packaging material and the molten resin rotate the blade of the ribbon screw conveyor. An impeller for a waste packaging material decomposing device to be transferred to the entire area of the heating section formed by the outer chamber.
The method according to claim 1,
The impeller is
a core mounted on a lower end of a support shaft of the ribbon screw conveyor extending toward the bottom of the hollow part; and
A plurality of impellers extending radially outward of the core on the outer surface of the core; including,
The impellers are provided in a plate shape convexly curved toward the rotational direction in a plan view, and at the same time extend from the core to the inner side of the hollow part to gradually lower the height,
An impeller for a waste packaging material decomposing device in which a lower end of the blade is connected to any one of the impellers.

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